JPS6220903B2 - - Google Patents
Info
- Publication number
- JPS6220903B2 JPS6220903B2 JP57154351A JP15435182A JPS6220903B2 JP S6220903 B2 JPS6220903 B2 JP S6220903B2 JP 57154351 A JP57154351 A JP 57154351A JP 15435182 A JP15435182 A JP 15435182A JP S6220903 B2 JPS6220903 B2 JP S6220903B2
- Authority
- JP
- Japan
- Prior art keywords
- hose
- forming
- rotating roll
- vulcanization
- group
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 claims 1
- 238000004073 vulcanization Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 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
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- 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
- B29L2023/005—Hoses, i.e. flexible
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Description
【発明の詳細な説明】
本発明は、ゴムから成るホース壁に硬質合成樹
脂から成るコイルを埋設したホースの連続製造方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for continuously manufacturing a hose in which a coil made of hard synthetic resin is embedded in a hose wall made of rubber.
この種のホースの製造方法としては、特開昭52
−138576号に開示されているように、相集つて１
つの仮想円筒面を形成し且つ自転する捻曲したフ
レキシブルシヤフト群から成るフオーマー上に未
加硫ゴム帯状体を捲き掛け、強制的に螺旋送りを
しながらフオーマー上で加熱加硫しつつホースを
成形する方法が知られている。 The manufacturing method for this type of hose was published in Japanese Patent Publication No. 52
- As disclosed in No. 138576, collectively 1
An unvulcanized rubber band is wrapped around a former consisting of a group of twisted flexible shafts that form two virtual cylindrical surfaces and rotate on its own axis, and is heated and vulcanized on the former while forcibly feeding in a spiral to form a hose. There are known ways to do this.
しかしながら、この方法によれば、フオーマー
内側の空間内に配設した芯金に挿設したニクロム
線ヒーターから成る加熱装置からの熱が、芯金を
通じて間接的にしかもフレキシブルワイヤーを内
側より保持する保持枠の間隙及び隣接するフレキ
シブルワイヤー間の間隙を通してのみホース状体
の内面に対して与えられているにすぎず、ホース
状体の内面側からの加硫に長時間を要するため、
フレキシブルワイヤー群を長くして加硫ゾーンを
長くする必要がありこのためホース成形機の機械
的構造が大型化する欠点があつた。 However, according to this method, heat from a heating device consisting of a nichrome wire heater inserted into a core metal arranged in a space inside the former is transmitted indirectly through the core metal, and the flexible wire is held from the inside. Vulcanization is applied to the inner surface of the hose-like body only through the gap between the frames and the gap between adjacent flexible wires, and it takes a long time to cure the hose-like body from the inside.
It is necessary to lengthen the flexible wire group to lengthen the vulcanization zone, which has the disadvantage of increasing the mechanical structure of the hose forming machine.
本発明は、上述の欠点を考慮して、ゴムから成
るホース壁に硬質合成樹脂から成るコイルを埋設
した構造のホースを連続加硫成形するに際して、
ホース内面側からの加熱効率を著しく高め加硫ゾ
ーンをごく短いものにしてホース成形機の大型化
を解消し、しかも加熱加硫時におけるホースの形
状の崩れを防止して高品質を維持する製造方法を
提供することを目的とするものである。 In consideration of the above-mentioned drawbacks, the present invention provides continuous vulcanization molding of a hose having a structure in which a coil made of hard synthetic resin is embedded in a hose wall made of rubber.
Manufacturing that significantly increases the heating efficiency from the inner surface of the hose and makes the vulcanization zone extremely short, eliminating the need for larger hose forming machines, and maintaining high quality by preventing the hose from deforming during heat vulcanization. The purpose is to provide a method.
この目的を達成するため、本発明においては、
螺旋送り機構を有するホース成形機の成形ローラ
群に硬質合成樹脂製の補強芯を埋入した未加硫ゴ
ムから成る帯状体を螺旋状に捲回して形成した未
加硫ゴムホースを、ホース成形機の前方に回転前
進せしめ、引き続き１本の片持式の回転ロールに
より釣支させた状態で少なくともその内側から加
熱することにより加硫することを技術的手段とし
たものである。 In order to achieve this objective, in the present invention,
An unvulcanized rubber hose is formed by spirally winding a band of unvulcanized rubber with a reinforcing core made of hard synthetic resin embedded in a group of forming rollers of a hose forming machine with a spiral feeding mechanism. The technical means is to rotate the material forward and then vulcanize it by heating it at least from the inside while suspended by a single cantilevered rotating roll.
この技術的手段によれば、未加硫状態で成形さ
れたホースは、ホース成形機の成形ローラ群を脱
した後、１本の片持式の回転ロールでその上部内
面を支えられ釣り下げられた状態で回転前進し且
つその内面側から加熱される結果、加熱装置から
の熱がホースの内面に僅かに１本の回転ロールに
接触する部分を除いて直接伝わることになり、熱
効率の非常に高い状態で加硫されるため、加硫を
短時間で行なうことができ、ひいては、加硫ゾー
ンをごく短いものにすることができることによ
り、片持式ホース成形機の機構の簡単化を図り得
るに至つたものである。 According to this technical means, after the hose formed in an unvulcanized state leaves the forming roller group of the hose forming machine, its upper inner surface is supported by a single cantilevered rotating roll, and the hose is suspended. As a result, the heat from the heating device is directly transmitted to the inner surface of the hose except for the part that contacts only one rotating roll, resulting in extremely low thermal efficiency. Since vulcanization is carried out at a high temperature, vulcanization can be carried out in a short time, and the vulcanization zone can be made very short, making it possible to simplify the mechanism of the cantilever type hose forming machine. This is what led to this.
尚、上記の技術的手段において、片持式の回転
ロールにニクロム線ヒーター等を付設して回転ロ
ール自体を加熱装置に構成した場合には、ホース
の全内周面に直接熱が伝達させることになり、加
熱効率をより一層上昇させることができる。 In addition, in the above technical means, if a nichrome wire heater or the like is attached to the cantilevered rotating roll and the rotating roll itself is configured as a heating device, heat can be directly transmitted to the entire inner peripheral surface of the hose. This makes it possible to further increase heating efficiency.
又、未加硫状態のホースを加熱加硫する際に
は、ホースが１本の回転ロールにより支えられて
おり、しかもホース自身回転しているため、ホー
スは円筒形を維持し形崩れの生ずる恐れがないこ
とは言うまでもない。 In addition, when heating and vulcanizing an unvulcanized hose, the hose is supported by a single rotating roll, and the hose itself is rotating, so the hose maintains its cylindrical shape and may lose its shape. Needless to say, there is no fear.
以下、図面に示した本発明を実施するための装
置例を説明しながら本発明を更に説明する。 Hereinafter, the present invention will be further explained while explaining an example of an apparatus for carrying out the present invention shown in the drawings.
本発明の実施に用いるゴムホースの成形装置
は、帯状体を螺旋状に回転前進せしめ、その側縁
同士を接合させうるものであれば、どのような構
成のものであつても良いが、図面では相集つて仮
想の円筒面を形成するように片持式に配置し、等
速度で同一方向に自転する６本の成形ローラ群２
（図面では４本だけが見える）とその外側に基端
部に膨出段部４を形成した円筒形の押えローラ３
から成るホース成形機１を用いている。 The rubber hose forming device used to carry out the present invention may have any configuration as long as it can rotate and advance a strip in a spiral manner and join the side edges of the strip. A group of six forming rollers 2 arranged in a cantilevered manner so that they come together to form a virtual cylindrical surface and rotate in the same direction at a constant speed.
(only four are visible in the drawing) and a cylindrical presser roller 3 with a proximal end portion 4 formed on the outside thereof.
A hose forming machine 1 consisting of the following is used.
成形ローラ群２と押えローラ３との間に中心に
硬質合成樹脂５を埋設させた未加硫ゴムから成る
帯状体６を押出機７から押出して臨ませると、そ
の側縁が押えローラの段部４にガイドされながら
連続して成形ローラ群２上に臨んでくるために、
帯状体６は螺旋状に送られながらその側縁同士を
粘着させ、成形ローラ群上でホース状体が形成さ
れ、ホース状体は回転しながら成形ローラ群２の
先端へ前進して行く。 When a strip 6 made of unvulcanized rubber with a hard synthetic resin 5 embedded in the center is extruded from the extruder 7 between the forming roller group 2 and the presser roller 3 and is exposed, the side edge of the band 6 is exposed to the step of the presser roller. In order to continuously face the forming roller group 2 while being guided by the part 4,
The strip 6 is fed spirally and its side edges adhere to each other to form a hose-like body on the forming roller group, and the hose-like body advances toward the tip of the forming roller group 2 while rotating.
成形ローラ群２の中央には熱風墳出用のパイプ
８を配置しその墳出口９を成形ローラ群の前方に
臨ませてあり、又成形ローラ群２の前方には１本
の片持式の自転ロール１０が最上部の成形ローラ
２′よりやゝ低い位置でホース状体の進行方向に
向つて突設されている。 In the center of the forming roller group 2, a pipe 8 for extruding hot air is placed, with the opening 9 of the pipe facing the front of the forming roller group 2. A rotating roll 10 is provided protruding in the direction of movement of the hose-like body at a position slightly lower than the uppermost forming roller 2'.
従つて、成形ローラ群２上を回転前進しながら
離脱したホース状体は、その上部内面を１本の自
転ロール１０で支えられながら回転前進を行な
い、自転ロールで釣り下げられた状態でパイプ８
の墳出口９から噴出される熱風によつてホース内
面側から加熱され、又自転ロール１０の上方に配
置した赤外線ヒータ１１によつてホース外面側か
ら加熱される。 Therefore, the hose-shaped body detached while rotating and moving forward on the forming roller group 2 rotates and moves forward while its upper inner surface is supported by one rotating roll 10, and the hose-shaped body is suspended from the rotating roll 10 and passes through the pipe 8.
The inner surface of the hose is heated by hot air blown out from the mound opening 9, and the outer surface of the hose is heated by an infrared heater 11 disposed above the rotating roll 10.
この場合、ホース内面側からの加熱は、ホース
内面のうち自転ロールと接触する僅かな部分を除
いてほぼ全面的に直接ホースに伝熱されるので熱
効率が非常に良く、肉厚の大きいホースであつて
も成形ロール群から突出した自転ロール上で十分
に加硫することができ、加硫ゾーンを例えば40cm
程度に著しく短縮できホース成形機の機構の繁雑
化を招くことがないのである。 In this case, heating from the inner surface of the hose is transferred directly to the hose over almost the entire surface of the hose, except for a small portion that comes into contact with the rotating rolls, so thermal efficiency is very high, and even if the hose has a large wall thickness, Even if the vulcanization zone is set to 40cm, for example, sufficient vulcanization can be carried out on the rotating rolls that protrude from the forming roll group.
The length of the hose forming machine can be significantly shortened without complicating the mechanism of the hose forming machine.
尚、上記自転ロール１０は、加硫時におけるホ
ース形状の崩れを防止できれば足り、必ずしもそ
の長さを加硫ゾーンに一致させることを要せず、
加硫ゾーンより短かくても長くても良い。 In addition, the above-mentioned autorotating roll 10 does not necessarily need to have its length matched with the vulcanization zone, as long as it can prevent the hose shape from collapsing during vulcanization.
It may be shorter or longer than the vulcanization zone.
加硫を終えたホースは、水槽１２に臨み水に浮
かびながら回転前進を行ない円滑に引取られて行
く。 The vulcanized hose faces the water tank 12, rotates forward while floating on the water, and is smoothly taken away.
この場合、水槽１２内に設けた複数個の駆動ロ
ーラでホースに回転前進力を与えても良く、又水
槽を用いずに、加硫されたホースを回転前進させ
て所望長さに至るまでホースを円滑に搬送できる
公知の引取手段を設けても良い。 In this case, a plurality of driving rollers provided in the water tank 12 may be used to apply rotational forward force to the hose, or the vulcanized hose may be rotated and advanced until the desired length is reached without using a water tank. It is also possible to provide a known take-up means that can smoothly transport the materials.
尚、上記の実施例においては、未加硫状態のホ
ースを釣支するために成形ローラ群とは別個の１
本の自転ロールを用いているが、これはホースの
回転に従動して回転する遊転ロールを用いても良
く、又、成形ローラ群のうち最上部の成形ローラ
のみを他よりも長く突出させてホースを釣支する
１本の回転ロールを構成するようにしても良い。 In the above embodiment, a separate roller group is used to support the unvulcanized hose.
Although a self-rotating roll is used, an idler roll that rotates as the hose rotates may also be used, or only the uppermost forming roller of the group of forming rollers should protrude longer than the others. It is also possible to configure one rotating roll for supporting the hose.
更に、前述したように、ホースを釣支する回転
ロール自体を加熱装置にするため、回転ロールに
ヒーター等を取付けても良い。 Furthermore, as described above, in order to use the rotating roll itself that supports the hose as a heating device, a heater or the like may be attached to the rotating roll.
又、ホースの加熱手段は、内面を熱風、外面を
赤外線ヒーターとしているが、ゴムの加硫に用い
られる他の手段を用いても良いほか、内面からの
加熱によつて加硫が十分に行なえる場合には、内
外両面から加熱することを要しない。 In addition, the heating means for the hose is hot air on the inside and an infrared heater on the outside, but other means used for vulcanizing rubber may also be used, and sufficient vulcanization can be achieved by heating from the inside. In this case, it is not necessary to heat from both the inside and outside.
又、ホース状体の回転前進を円滑に行なうた
め、成形ローラ群や回転ロールにシリコンオイル
等の潤滑剤を塗付するようにしても良い。 Further, in order to smoothly rotate and advance the hose-shaped body, a lubricant such as silicone oil may be applied to the forming roller group and the rotating roll.
図面は本発明を実施するための装置例を示した
もので、その装置の概略側面図である。
１……ホース成形機、２……成形ローラ群、８
……パイプ、１０……回転ロール。
The drawing shows an example of an apparatus for implementing the present invention, and is a schematic side view of the apparatus. 1... Hose forming machine, 2... Forming roller group, 8
...Pipe, 10...Rotating roll.
Claims (1)
ーラ群に硬質合成樹脂製の補強芯を埋入した未加
硫ゴムから成る帯状体を螺旋状に捲回して形成し
た未加硫ゴムホースを、ホース成形機の前方に回
転前進せしめ、引き続き１本の片持式の回転ロー
ルにより釣支させた状態で、少なくとも、その内
側から加熱することにより加硫するようにしたこ
とを特徴とするゴムホース連続製造方法。1. An unvulcanized rubber hose is formed by spirally winding a band of unvulcanized rubber with a reinforcing core made of hard synthetic resin embedded in a group of forming rollers of a hose forming machine with a spiral feed mechanism. A method for continuous production of a rubber hose, characterized in that the rubber hose is rotated forward to the front of the machine and then vulcanized by heating from at least the inside of the machine while suspended by a single cantilevered rotating roll. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57154351A JPS5942943A (en) | 1982-09-03 | 1982-09-03 | Continuous manufacture of rubber hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57154351A JPS5942943A (en) | 1982-09-03 | 1982-09-03 | Continuous manufacture of rubber hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5942943A JPS5942943A (en) | 1984-03-09 |
| JPS6220903B2 true JPS6220903B2 (en) | 1987-05-09 |
Family
ID=15582259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57154351A Granted JPS5942943A (en) | 1982-09-03 | 1982-09-03 | Continuous manufacture of rubber hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5942943A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364051B (en) * | 2017-09-14 | 2023-07-28 | 长春燃气热力设计研究院有限责任公司 | Polyethylene pipeline welding heating equipment and heating method thereof |
-
1982
- 1982-09-03 JP JP57154351A patent/JPS5942943A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5942943A (en) | 1984-03-09 |
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