JPH0423630B2 - - Google Patents
Info
- Publication number
- JPH0423630B2 JPH0423630B2 JP59277733A JP27773384A JPH0423630B2 JP H0423630 B2 JPH0423630 B2 JP H0423630B2 JP 59277733 A JP59277733 A JP 59277733A JP 27773384 A JP27773384 A JP 27773384A JP H0423630 B2 JPH0423630 B2 JP H0423630B2
- Authority
- JP
- Japan
- Prior art keywords
- hose
- laminated
- roll
- synthetic resin
- circumferential speed
- 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
- 239000000463 material Substances 0.000 claims description 110
- 229920003002 synthetic resin Polymers 0.000 claims description 13
- 239000000057 synthetic resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 description 15
- 239000010410 layer Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/18—Pleated or corrugated hoses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/18—Pleated or corrugated hoses
- B29L2023/186—Pleated or corrugated hoses having a smooth internal wall
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【発明の詳細な説明】
「発明の目的」
（発明の技術分野）
本発明は外周に補強用の螺旋凸条を有した合成
樹脂製ホースの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Technical Field of the Invention) The present invention relates to a method of manufacturing a synthetic resin hose having a reinforcing spiral protrusion on its outer periphery.
（従来の技術とその問題点）
従来、外周に補強用の螺旋凸条を有した合成樹
脂製ホースの製造は次の様にして行われている。(Prior art and its problems) Conventionally, a synthetic resin hose having a reinforcing spiral protrusion on its outer periphery has been manufactured as follows.
即ち、ホース成型ラインにおいて押し出し成型
機で軟質合成樹脂材からなる素材ホースを成型
し、この成型された素材ホースを冷却して硬化さ
せ一次製品ホースを得ると共に、該一次製品ホー
スを螺旋凸条の加工ラインへ移し、同ラインにお
いて一次製品ホースを流しその外周面に硬質合成
樹脂製の綿材を螺旋状に巻付けて接着し、外周に
螺旋凸条を有した最終製品ホースを得るものであ
る。前記一次製品ホースと線材との接着は、一次
製品ホースの外周面に接着剤を塗布し該接着剤層
を介して線材を接着するか、又は一次製品ホース
を再加熱してその外周表面を溶融させ、その溶融
した樹脂の接着力により線材を接着するようにし
ている。 That is, in a hose molding line, a material hose made of a soft synthetic resin material is molded using an extrusion molding machine, and this molded material hose is cooled and hardened to obtain a primary product hose, and the primary product hose is formed into a spiral convex strip. Transfer to a processing line, where the primary product hose is passed, and a cotton material made of hard synthetic resin is spirally wrapped around the outer circumferential surface of the hose and adhered to obtain a final product hose with spiral protrusions on the outer circumference. . The primary product hose and the wire can be bonded by applying an adhesive to the outer circumferential surface of the primary product hose and bonding the wire through the adhesive layer, or by reheating the primary product hose to melt the outer circumferential surface. Then, the wire rod is bonded by the adhesive force of the molten resin.
ところが、上記の様な従来の製造方法では素材
ホースと螺旋凸条用の線材とを別途に用意し、後
加工で両者を接着するものであり、一次製品ホー
スの製造工程と該ホースに対する線材の巻き付け
工程との独立した二つの工程が必要であるため、
一貫した連続工程で最終製品ホースを得ることが
できず、生産性の悪いものであつた。 However, in the conventional manufacturing method as described above, the raw material hose and the wire rod for the spiral convex strip are prepared separately, and the two are bonded in post-processing, and the process of manufacturing the primary product hose and the wire rod for the hose are complicated. Since two separate processes are required, including the wrapping process,
The final product hose could not be obtained through a consistent continuous process, resulting in poor productivity.
（発明が解決しようとする技術的課題）
本発明が解決しようとする技術的課題は、外周
に補強用の螺旋凸条を有した製品ホースを一貫し
た連続工程で得られるようにすることにある。(Technical Problem to be Solved by the Invention) The technical problem to be solved by the present invention is to make it possible to obtain a product hose having a reinforcing spiral protrusion on the outer periphery through a consistent and continuous process. .
「発明の構成」
（技術的課題を解決するための技術手段）
上記課題を解決すべき本発明が講じた技術手段
は、押し出し成型機で軟質合成樹脂材からなるイ
ンナホース素材と硬質合成樹脂材からなるアウタ
ホース素材とを同時成型し、且つそのインナホー
ス素材の外周にアウタホース素材を積層し両素材
を樹脂材の溶融接着により接着させて素材積層ホ
ースを連続的に押し出し成型し、この素材積層ホ
ースにおいて樹脂材が硬化する前にアウタホース
素材に対しカツターによりインナホース素材との
境界面まで所定のピツチで螺旋状の切込みを入れ
ると共に、該アウタホース素材に切込みの入つた
素材積層ホースは、該ホースの送り方向に沿い前
後に所定の間隔を置いて設置した周速度の遅い成
型機寄りの第１ロールと、第１ロールよりも前方
に位置し、周速度の速い第２ロールとの周速度の
差によつて引き伸ばし、インナホース素材を軸線
方向へ伸ばし且つアウタホース素材をその切込み
に沿つて分離させ、インナホース素材外周に螺旋
凸条を形成し、然る後前記素材積層ホースを冷却
し硬化させて製品ホースを得るようにしたもので
ある。"Structure of the invention" (Technical means for solving the technical problem) The technical means taken by the present invention to solve the above problem is that an inner hose material made of a soft synthetic resin material and a hard synthetic resin material are formed using an extrusion molding machine. At the same time, the outer hose material is laminated on the outer periphery of the inner hose material, and both materials are adhered by melt adhesion of the resin material to continuously extrude and mold the material laminated hose, and in this material laminated hose, the resin Before the material hardens, a spiral cut is made in the outer hose material at a predetermined pitch up to the interface with the inner hose material using a cutter, and the material laminated hose with the cut in the outer hose material is Due to the difference in circumferential speed between the first roll near the molding machine, which has a slow circumferential speed and is installed at a predetermined interval along the line, and the second roll, which is located in front of the first roll and has a fast circumferential speed. By stretching, the inner hose material is stretched in the axial direction, and the outer hose material is separated along the cut to form a spiral protrusion on the outer periphery of the inner hose material, and then the material laminated hose is cooled and hardened to obtain a product hose. This is what I did.
（技術手段の作用）
上記手段によれば、同時成型されたインナホー
ス素材とアウタホース素材とが積層して接着され
た素材積層ホースにおいて、その樹脂材が硬化す
る前の柔らかい状態でアウタホース素材に対しイ
ンナホース素材との境界面まで螺旋状の切込みが
確実に入り、然る後素材積層ホースが同じく樹脂
材硬化前の塑性変形可能な状態で引き伸ばされる
ことにより、インナホース素材が小径化を伴いな
がら軸線方向へ伸び且つアウタホース素材がイン
ナホース素材との接着状態を維持したまま切込み
に沿つて分離し、インナホース素材外周に螺旋凸
条が一体的に形成され、然る後素材積層ホースが
冷却して硬化されることにより、素材積層ホース
の形状が安定するものである。(Operation of technical means) According to the above means, in a material laminated hose in which simultaneously molded inner hose material and outer hose material are laminated and bonded, the inner hose material is attached to the outer hose material in a soft state before the resin material hardens. A spiral cut is made firmly to the interface with the material, and then the material laminated hose is stretched in a state where it can be plastically deformed before the resin material hardens, so that the inner hose material moves in the axial direction while reducing its diameter. The outer hose material stretches and separates along the cut while maintaining its adhesive state with the inner hose material, a spiral protrusion is integrally formed on the outer periphery of the inner hose material, and then the material laminated hose is cooled and hardened. This stabilizes the shape of the material laminated hose.
「発明の効果」
以上の様な本発明の構成によれば、同時成型さ
れるインナホース素材とアウタホース素材とが積
層して接着された素材積層ホースを単一のライン
で加工することにより、外周に補強用の螺旋凸条
を有した製品ホースが得られるので、従来の様に
工程を二つに分けずに一貫した連続工程でホース
の製造を行うことができ、従来方法に比べ大幅に
生産性を向上させ得るものである。"Effects of the Invention" According to the configuration of the present invention as described above, by processing the material laminated hose in which the simultaneously molded inner hose material and outer hose material are laminated and bonded together in a single line, the outer periphery can be Since a product hose with spiral protrusions for reinforcement can be obtained, the hose can be manufactured in an integrated continuous process without dividing the process into two as in the past, resulting in significantly higher productivity than conventional methods. It is possible to improve the
又、螺旋凸条の形成は、螺旋状に切り込んだ
後、積層ホースを２組のロールの周速度の差を利
用して引き伸し、インナホース素材を軸線方向へ
伸ばすと同時に、アウターホース素材をその切込
みに沿つて分離して形成するものであるから、２
組のロールの周速度の差を変えることで、成型さ
れる螺旋凸条のピツチを長短自由に変えることが
出来る。 In addition, to form a spiral convex strip, after making a spiral cut, the laminated hose is stretched using the difference in circumferential speed between two sets of rolls, and at the same time the inner hose material is stretched in the axial direction, and the outer hose material is stretched. Since it is formed separately along the notch, 2
By changing the difference in peripheral speed between the sets of rolls, it is possible to freely change the pitch of the spiral protrusions to be formed.
「実施例」
以下、本発明の実施例を図面により説明する。
本実施例の製造方法は、第１図に示す如く製造工
程が一貫した連続工程となつており、その工程を
順に説明すると、先ず最初の工程では押し出し成
型機１で軟質合成樹脂材からなるインナホース素
材ａと、硬質合成樹脂材からなるアウタホース素
材ｂとを同時成型し、且つそのインナホース素材
ａの外周にアウタホース素材ｂを積層し接着して
素材積層ホースA1を連続的に押し出し成型する。"Example" Hereinafter, an example of the present invention will be described with reference to the drawings.
In the manufacturing method of this embodiment, the manufacturing process is a consistent continuous process as shown in FIG. A material a and an outer hose material b made of a hard synthetic resin material are simultaneously molded, and an outer hose material b is laminated and adhered to the outer periphery of the inner hose material a to continuously extrude and mold the material laminated hose A1 .
押し出し成型機１は軟質合成樹脂材の導入口１
１と硬質合成樹脂材の導入口１２とを備え、且つ
それら導入口１１，１２に連絡する樹脂通路１
３，１４が先端部のダイス１５で合流している。
前記ダイス１５の中心部にはエア１６が設けられ
ており、このエア通路１６を介して素材積層ホー
スA1内へ微小圧力の圧縮空気が供給され、素材
積層ホースA1の断面形状が真円に保持されるよ
うになつている。 The extrusion molding machine 1 has an inlet port 1 for soft synthetic resin material.
1 and an inlet 12 for a hard synthetic resin material, and communicates with the inlets 11 and 12.
3 and 14 are joined at the die 15 at the tip.
An air 16 is provided in the center of the die 15, and compressed air at minute pressure is supplied into the material laminated hose A1 through this air passage 16, so that the cross-sectional shape of the material laminated hose A1 is a perfect circle. It is becoming more and more maintained.
前記インナホース素材ａ及びアウタホース素材
ｂを構成する軟質及び硬質合成樹脂材は、接着性
が良好な同系材料で硬度の異なつたものを使用
し、具体例としては塩化ビニル、ポリエチレン、
ポリウレタン等が挙げられる。 The soft and hard synthetic resin materials constituting the inner hose material a and the outer hose material b are similar materials with good adhesion and different hardness, and specific examples include vinyl chloride, polyethylene,
Examples include polyurethane.
インナホース素材ａとアウタホース素材ｂとの
接着はその樹脂材同志の溶融接着によるものであ
る。 The inner hose material a and the outer hose material b are bonded together by melt adhesion of their resin materials.
上記工程で成型された素材積層ホースA1は冷
却器２から吹出す冷却風によつて柔軟性が失われ
ない程度に冷却され、次の工程へ送られる。 The material laminated hose A1 formed in the above process is cooled by the cooling air blown from the cooler 2 to such an extent that its flexibility is not lost, and then sent to the next process.
前記冷却器２による素材積層ホースA1の冷却
後は、樹脂材が硬化する前に素材積層ホースA1
のアウタホース素材ｂに対しカツター３によりイ
ンナホース素材ａとの境界面まで所定のピツチで
螺旋状の切込みb1が入れられる。前記カツター３
は素材積層ホースA1の周方向へ回転するように
なつており、このカツター３の回転速度と素材積
層ホースA1の送り速度との比率によつて切込み
b1のピツチが決定されるものである。 After the material laminated hose A 1 is cooled by the cooler 2, the material laminated hose A 1 is cooled before the resin material hardens.
The cutter 3 makes a spiral cut b 1 in the outer hose material b at a predetermined pitch up to the interface with the inner hose material a. Said cutter 3
The cutter 3 rotates in the circumferential direction of the material laminated hose A 1 , and the cutting depth is determined by the ratio of the rotational speed of this cutter 3 and the feed speed of the material laminated hose A 1 .
The pitch of b1 is determined.
上記アウタホース素材ｂに切込みb1を入れる工
程においては、素材積層ホースA1が内部の圧縮
空気により保形されているので、カツター３によ
る切込み作業を行い易いものである。 In the step of making the cut b 1 in the outer hose material b, since the material laminated hose A 1 is kept in shape by the compressed air inside, the cutting operation with the cutter 3 can be easily performed.
アウタホース素材ｂに切込みb1が入られた素材
積層ホースA1は以前として塑性変形可能な柔軟
性を保持しており、この状態で第１ロール４と第
２ロール５とにより素材積層ホースA1が引き伸
ばされる。前記第１ロール４と第２ロール５は素
材積層ホースA1の送り方向前後に間隔をおいて
配置され、素材積層ホースA1を上下から挟んで
その外周面に接しており、その送り方向後方の第
１ロール４の回転速度即ち周速度が同送り方向前
方の第２ロール５よりも遅く設定されている。即
ち、第１ロール４と第２ロール５の周速度の差に
より素材積層ホースA1が周速度の速い第２ロー
ル５側へ引つ張られるものである。素材積層ホー
スA1が引つ張られると、そのインナホース素材
ａが小径化を伴いながら軸線方向へ伸び、且つア
ウタホー素材ｂがインナホース素材ａとの接着状
態を維持したまま切込みb1に沿つて分離し、イン
ナホース素材ａ外周に螺旋凸条b2が形成される。 The material laminated hose A 1 with the cut b 1 made in the outer hose material b retains the flexibility to be plastically deformable as before, and in this state, the material laminated hose A 1 is rolled by the first roll 4 and the second roll 5. is stretched. The first roll 4 and the second roll 5 are arranged at intervals before and after the material laminated hose A 1 in the feeding direction, and are in contact with the outer circumferential surface of the material laminated hose A 1 with the material laminated hose A 1 sandwiched from above and below. The rotational speed, that is, the peripheral speed, of the first roll 4 is set to be slower than that of the second roll 5 located forward in the same feeding direction. That is, due to the difference in circumferential speed between the first roll 4 and the second roll 5, the material laminated hose A1 is pulled toward the second roll 5, which has a faster circumferential speed. When material laminated hose A 1 is stretched, its inner hose material a stretches in the axial direction while reducing its diameter, and outer hose material b separates along cut b 1 while maintaining its adhesive state with inner hose material a. However, a spiral protrusion b2 is formed on the outer periphery of the inner hose material a.
上記を如くインナホース素材ａが伸び且つアウ
タホース素材ｂが分離して螺旋凸条b2を形成した
素材積層ホースA1は、冷却水噴射ノズル６１と
水槽６２とからなる冷却装置６通過することによ
り冷却して硬化され、形状が安定して製品ホース
Ａとなるものである。 As described above, the material laminated hose A 1 in which the inner hose material a is stretched and the outer hose material b is separated to form a spiral convex strip b 2 is cooled by passing through a cooling device 6 consisting of a cooling water injection nozzle 61 and a water tank 62. The product hose A is then cured and has a stable shape.
以上の様にして得られた製品ホースＡは引取機
７で引取られ、且つ不図示のホース巻取機に巻き
取られる。 The product hose A obtained as described above is taken up by a take-up machine 7, and then wound up by a hose winding machine (not shown).
製品ホースＡにおける補強用の螺旋凸条b2は第
２図に示す如く断面矩形状とされる。この螺旋凸
条b2の断面形状は、該凸条b2を第３図に示す如く
形状補正ローラ８により面取りしてエツジ部分の
ない形状とすることも任意である。 The reinforcing spiral protrusion b2 in the product hose A has a rectangular cross section as shown in FIG. The cross-sectional shape of the spiral protrusion b 2 may be arbitrarily changed by chamfering the protrusion b 2 with a shape correction roller 8 as shown in FIG.
前記形状補正ローラ８は第２ロール５と冷却装
置６との間に配置され、外周面に螺旋凸条b2に当
接する断面Ｖ字形の螺旋溝８１が形成されてい
る。 The shape correction roller 8 is disposed between the second roll 5 and the cooling device 6, and has a spiral groove 81 having a V-shaped cross section that abuts the spiral protrusion b2 on its outer peripheral surface.
次に、第４図に示した他の実施例について説明
する。 Next, another embodiment shown in FIG. 4 will be described.
この実施例のものは、押し出し成型機１による
素材積層ホースA1の成型時においてインナホー
ス素材ａを厚肉な内層a1と肉薄な外層a2とからな
る二層構造とし、その外層a2の外周に螺旋凸条b2
を形成するようにしたものである。 In this example, when the material laminated hose A 1 is molded by the extrusion molding machine 1, the inner hose material a is made into a two-layer structure consisting of a thick inner layer a 1 and a thin outer layer a 2 . Spiral protrusions on the outer periphery b 2
It is designed to form a .
この実施例によれば、アウタホース素材ｂに対
し切込みb1を入れる際にその切込みb1がインナホ
ース素材ａとの境界面より深く入つても、同イン
ナホース素材ａが二層構造であるため損傷が外層
a2のみにとどまり、内層a1の損傷を防止してホー
スの耐久性を維持できるものである。 According to this embodiment, even if the cut b 1 is deeper than the interface with the inner hose material a when making the cut b 1 in the outer hose material b, damage will not occur because the inner hose material a has a two-layer structure. outer layer
It is possible to maintain the durability of the hose by preventing damage to the inner layer A1 by limiting the damage to only A2 .
第１図は本発明製造方法の一実施例を示す工程
説明図、第２図は製品ホースを拡大して示す一部
切欠正面図、第３図は螺旋凸条の形状を補正する
場合の形状補正手段を示す一部切欠正面図、第４
図は他の実施例において得られた素材積層ホース
を示す一部切欠正面図である。
尚図中、ａ……インナホース素材、ｂ……アウ
タホース素材、b1……切込み、b2……螺旋凸条、
１……押し出し成型機、３……カツター、Ａ……
製品ホース、A1……素材積層ホース。
Fig. 1 is a process explanatory drawing showing one embodiment of the manufacturing method of the present invention, Fig. 2 is a partially cutaway front view showing an enlarged view of the product hose, and Fig. 3 is the shape when correcting the shape of the spiral protrusion. Partially cutaway front view showing the correction means, No. 4
The figure is a partially cutaway front view showing a material laminated hose obtained in another example. In the figure, a... Inner hose material, b... Outer hose material, b 1 ... Notch, b 2 ... Spiral convex line,
1...Extrusion molding machine, 3...Cutter, A...
Product hose, A 1 ...Material laminated hose.
Claims (1)
ンナホース素材と硬質合成樹脂材からなるアウタ
ホース素材とを同時成型し、且つそのインナホー
ス素材の外周にアウタホース素材を積層し両素材
を樹脂材の溶融接着により接着させて素材積層ホ
ースを連続的に押し出し成型し、この素材積層ホ
ースにおいて樹脂材が硬化する前にアウタホース
素材に対しカツターによりインナホース素材との
境界面まで所定のピツチで螺旋状の切込みを入れ
ると共に、該アウタホース素材に切込みの入つた
素材積層ホースは、該ホースの送り方向に沿い前
後に所定の間隔を置いて設置した周速度の遅い成
型機寄りの第１ロールと、第１ロールよりも前方
に位置し、周速度の速い第２ロールとの周速度の
差によつて引き伸ばし、インナホース素材を軸線
方向へ伸ばし且つアウタホース素材をその切込み
に沿つて分離させ、インナホース素材外周に螺旋
凸条を形成し、然る後前記素材積層ホースを冷却
し硬化させて製品ホースを得るようにした合成樹
脂製ホースの製造方法。1. Using an extrusion molding machine, an inner hose material made of a soft synthetic resin material and an outer hose material made of a hard synthetic resin material are simultaneously molded, and the outer hose material is laminated around the outer periphery of the inner hose material, and both materials are bonded by melt adhesion of the resin material. The material laminated hose is continuously extruded and molded, and before the resin material hardens in this material laminated hose, a spiral cut is made in the outer hose material at a predetermined pitch up to the interface with the inner hose material with a cutter, and The material laminated hose with a notch in the outer hose material has a first roll near the molding machine with a slow circumferential speed, which is installed at a predetermined interval in the front and back along the feeding direction of the hose, and a roll in front of the first roll. The inner hose material is stretched in the axial direction by the difference in circumferential speed between the roller and the second roll, which is located at the same position and has a faster circumferential speed. A method for manufacturing a synthetic resin hose, wherein the material laminated hose is then cooled and hardened to obtain a product hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27773384A JPS61158428A (en) | 1984-12-29 | 1984-12-29 | Manufacture of hose made of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27773384A JPS61158428A (en) | 1984-12-29 | 1984-12-29 | Manufacture of hose made of synthetic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61158428A JPS61158428A (en) | 1986-07-18 |
| JPH0423630B2 true JPH0423630B2 (en) | 1992-04-22 |
Family
ID=17587565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27773384A Granted JPS61158428A (en) | 1984-12-29 | 1984-12-29 | Manufacture of hose made of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61158428A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52125580A (en) * | 1976-04-14 | 1977-10-21 | Sekisui Jushi Kk | Flexible hoses and their manufacturing process |
-
1984
- 1984-12-29 JP JP27773384A patent/JPS61158428A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52125580A (en) * | 1976-04-14 | 1977-10-21 | Sekisui Jushi Kk | Flexible hoses and their manufacturing process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61158428A (en) | 1986-07-18 |
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