JPH0521724B2 - - Google Patents
Info
- Publication number
- JPH0521724B2 JPH0521724B2 JP59194369A JP19436984A JPH0521724B2 JP H0521724 B2 JPH0521724 B2 JP H0521724B2 JP 59194369 A JP59194369 A JP 59194369A JP 19436984 A JP19436984 A JP 19436984A JP H0521724 B2 JPH0521724 B2 JP H0521724B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- rubber hose
- resistant resin
- vulcanization
- resin cover
- 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
- 238000004073 vulcanization Methods 0.000 claims description 34
- 229920006015 heat resistant resin Polymers 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 8
- 229920000306 polymethylpentene Polymers 0.000 claims description 6
- 239000011116 polymethylpentene Substances 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 230000001464 adherent effect Effects 0.000 claims 1
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JMMZCWZIJXAGKW-UHFFFAOYSA-N 2-methylpent-2-ene Chemical compound CCC=C(C)C JMMZCWZIJXAGKW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
- B29C48/9105—Heating, e.g. for cross linking of hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、補強糸入りホースを製造するための
ゴムの押出物を、高温・常圧の液状加硫媒体
（LCM）中に連続的に供給して加硫する方法に関
する。Detailed Description of the Invention [Industrial Field of Application] The present invention provides a method for continuously feeding a rubber extrudate for manufacturing a hose with reinforcing thread into a liquid vulcanizing medium (LCM) at high temperature and normal pressure. and vulcanization.
加硫媒体による補強糸入りゴムホースの加硫
は、従来第２図に示す如く、加硫槽１に入れられ
たトーレツク等の加硫媒体２内に未加硫のゴムホ
ース３を供給して行なうものであるが、未加硫の
ゴムホース３に加硫媒体２による浮力が働くた
め、シリンダ４等で作動する押えローラ５で加硫
中のゴムホース３を加硫媒体２中に浸漬する必要
があり、しかもゴムホース３の移送のためにベル
トコンベア６で引き取る必要がある。
Vulcanization of a rubber hose containing reinforcing threads with a vulcanizing medium has conventionally been carried out by supplying an unvulcanized rubber hose 3 into a vulcanizing medium 2 such as Torex placed in a vulcanizing tank 1, as shown in FIG. However, since the buoyancy of the vulcanizing medium 2 acts on the unvulcanized rubber hose 3, it is necessary to immerse the rubber hose 3 during vulcanization into the vulcanizing medium 2 using a presser roller 5 operated by a cylinder 4 or the like. In order to transport the rubber hose 3, it is necessary to take it over by a belt conveyor 6.
このため、加硫中のゴムホース３に浮力及びテ
ンシヨンが作用することにより、加硫時に不均一
な変形を生じ、さらには押えローラ５に当接する
部分が傷つく恐れがあり、ゴムホース３の表面に
付着した加硫媒体２は、加硫後に温水洗浄槽で洗
浄する必要があつた。
For this reason, buoyancy and tension act on the rubber hose 3 during vulcanization, causing uneven deformation during vulcanization, and furthermore, there is a risk that the part that comes into contact with the presser roller 5 may be damaged, and it may stick to the surface of the rubber hose 3. The vulcanizing medium 2 needed to be washed in a hot water washing tank after vulcanization.
また、ゴムの押出物の場合は、加硫時における
押出物内部の発泡を押えるために、加圧、加硫を
行なう必要があるが、加硫槽内を一定の温度・圧
力に保持して連続的に押出物を加硫媒体に供給す
ることはシールが困難で、加硫装置が複雑な構造
のものとなつたり一般的ではなく通常ゴムの材質
及び添加剤の配合で調整し、発泡をしないような
材料組成としていた。したがつて外観的にも、物
性的にも、コスト的にも満足のいく製品を得るこ
とは困難である等の欠点があつた。 In addition, in the case of rubber extrudates, it is necessary to pressurize and vulcanize to suppress foaming inside the extrudate during vulcanization, but the inside of the vulcanization tank must be maintained at a constant temperature and pressure. Continuously feeding the extrudate to the vulcanization medium is difficult to seal, and the vulcanization equipment has a complicated structure. The material composition was such that it would not occur. Therefore, it has been difficult to obtain a product that is satisfactory in terms of appearance, physical properties, and cost.
本発明は上記に鑑み、加硫時に加硫中のゴムホ
ースに不均一な変形が生じたり傷がついたり、表
面に加硫媒体が付着したりする恐れがなく、しか
も剥離除去し耐熱性樹脂カバーの再利用を図つた
ホースの連続加硫方法を提供するにある。 In view of the above, the present invention eliminates the risk of non-uniform deformation or scratches on the rubber hose during vulcanization, or the adhesion of vulcanizing media to the surface, and also provides a heat-resistant resin cover that can be peeled off and removed. The purpose of the present invention is to provide a method for continuously vulcanizing a hose in order to reuse the hose.
本発明は上記目的を達成するため、押出成形さ
れた未加硫ゴムホースの外周に、このゴムホース
の素材とは非接着の加硫温度より高い融点を持つ
ナイロン又はポリメチルペンテンからなる耐熱性
樹脂カバーを押出成形により被せ、下方に湾曲し
た加硫槽中の高温・常圧の加硫媒体で連続的に加
熱・加硫した後、耐熱性樹脂カバーにゴムホース
に達しない深さのキズを長手方向につけ、冷却し
た後に耐熱性樹脂カバーを剥離除去し、剥離後の
耐熱性樹脂カバーを粉砕して反復使用するように
したことを特徴とする。
In order to achieve the above object, the present invention covers the outer periphery of an extruded unvulcanized rubber hose with a heat-resistant resin cover made of nylon or polymethylpentene, which has a melting point higher than the vulcanization temperature of the non-adhesive material of the rubber hose. After being continuously heated and vulcanized with a vulcanizing medium at high temperature and normal pressure in a downwardly curved vulcanization tank, the heat-resistant resin cover is covered with a rubber hose by extrusion molding. After soaking and cooling, the heat-resistant resin cover is peeled off and removed, and the peeled heat-resistant resin cover is crushed for repeated use.
以下、本発明方法を第１図に示す補強糸入りゴ
ムホースの連続加硫方法の一例に基づいて説明す
る。
Hereinafter, the method of the present invention will be explained based on an example of a continuous vulcanization method for a rubber hose containing reinforcing threads shown in FIG.
押出機１０によりマンドレル１１の外周に内ゴ
ムチユーブ２１を押出成形し、次にブレーダ１２
により内ゴムチユーブ２１の外周に補強糸２２を
編組した後、押出機１３により補強糸２２の上か
ら外ゴムカバー２３を完全に被覆密着させるとと
もに、さらにその外周に樹脂用押出機１４により
ナイロン又はポリメチルペンテンの耐熱性樹脂カ
バー２４を加硫時のゴム発泡を抑えるのに充分な
厚さだけ、例えば1.5mm乃至３mmの厚さで均一に
完全に密着被覆させて押出成形する。 The inner rubber tube 21 is extruded on the outer periphery of the mandrel 11 using the extruder 10, and then the braider 12
After braiding the reinforcing thread 22 around the outer periphery of the inner rubber tube 21, an extruder 13 completely covers and adheres the outer rubber cover 23 over the reinforcing thread 22, and a resin extruder 14 coats the outer rubber cover 23 with nylon or polyester. A heat-resistant resin cover 24 made of methylpentene is extruded to a thickness sufficient to suppress rubber foaming during vulcanization, for example, from 1.5 mm to 3 mm, to uniformly and completely adhere to the cover 24.
次に、このように高温の樹脂用押出機１４を経
て加熱された未加硫ゴムホース２０を、直ちに入
口管及び出口管を備えかつ下方に湾曲した管状の
加硫槽１５に導入し、高温・常圧の加硫媒体で連
続的に加熱・加硫した後、耐熱性樹脂カバー２４
にゴムホース２０面に達しない深さまで長手方向
に筋付機１６を通して連続的にキズ２５をつけ、
冷却槽１７で水冷却した後、その箇所から耐熱性
樹脂カバー２４をゴムホース２０より剥離機１８
で剥離・除去し、マンドレル１１を引き抜いてゴ
ムホース２０が出来上がる。 Next, the unvulcanized rubber hose 20 heated through the high-temperature resin extruder 14 is immediately introduced into a downwardly curved tubular vulcanization tank 15 equipped with an inlet pipe and an outlet pipe. After continuous heating and vulcanization with normal pressure vulcanization medium, the heat-resistant resin cover 24
Scratches 25 are made continuously through the creasing machine 16 in the longitudinal direction to a depth that does not reach the surface of the rubber hose 20.
After being cooled with water in the cooling tank 17, the heat-resistant resin cover 24 is removed from that point using a peeling machine 18 using a rubber hose 20.
The rubber hose 20 is completed by peeling and removing the mandrel 11.
そして、剥離した耐熱性樹脂カバー２４は、粉
砕機（図示せず）によつて粉砕され、再度樹脂用
押出機１４に供給することによつて反復使用され
る。 Then, the peeled heat-resistant resin cover 24 is pulverized by a pulverizer (not shown) and supplied to the resin extruder 14 again for repeated use.
本発明方法は、以上のように構成されるので下
記のような効果がある。
Since the method of the present invention is configured as described above, it has the following effects.
(a) ゴムホースをナイロン又はポリメチルペンテ
ンの耐熱性樹脂カバーを被せて加硫するため、
加硫時のゴムの発泡は樹脂の圧迫力で抑えるこ
とができ、そのため加硫装置に特別なシール機
構及び加圧手段が不要で押出物の材料配合面で
も発泡を気遣う必要がない。(a) To vulcanize a rubber hose by covering it with a heat-resistant resin cover made of nylon or polymethylpentene,
Foaming of the rubber during vulcanization can be suppressed by the compressive force of the resin, so there is no need for a special sealing mechanism or pressure means in the vulcanizer, and there is no need to worry about foaming when mixing the materials of the extrudate.
(b) 加硫時においてゴムホースは、耐熱性樹脂カ
バーにより加硫媒体が付着したり不均一な変形
が生じたり傷がついたりする恐れがなく、その
ため押出物を加硫媒体中に浸漬して移送させる
ための特別な移送手段を必要としない。(b) During vulcanization, the rubber hose has a heat-resistant resin cover that prevents the vulcanization medium from adhering to it, causing uneven deformation, and scratches; therefore, the extrudate is immersed in the vulcanization medium. No special transport means is required for transport.
(c) 高温樹脂の押出と加硫を連続的に行なうの
で、成形品をただちに加硫媒体中に導入でき、
加硫媒体に導入するまで成形品が冷えることが
なく、しかも加硫媒体の加硫温度（通常150℃
乃至190℃）より耐熱性樹脂カバーの融点（ナ
イロン６は215℃、ナイロン66は255℃、ポリメ
チルペンテンは247℃）が高いから耐熱性樹脂
カバーは固化するので、加硫槽上部と接触して
もゴムホースが損傷することなく、従来の加硫
媒体の加硫よりも、さらに熱効率が良好とな
る。(c) Since extrusion and vulcanization of the high-temperature resin are carried out continuously, the molded product can be immediately introduced into the vulcanization medium;
The molded product does not cool down until it is introduced into the vulcanization medium, and the vulcanization temperature of the vulcanization medium (usually 150℃)
Since the melting point of the heat-resistant resin cover is higher (215°C for nylon 6, 255°C for nylon 66, and 247°C for polymethylpentene) than the heat-resistant resin cover (215°C for nylon 6, 255°C for nylon 66, and 247°C for polymethylpentene), the heat-resistant resin cover solidifies and does not come into contact with the top of the vulcanization tank. The rubber hose will not be damaged even during vulcanization, and the thermal efficiency will be even better than that of conventional vulcanization media.
(d) 耐熱性樹脂カバーは、熱可塑性樹脂であるナ
イロン又はポリメチルペンテンによつて成形さ
れているため、剥離後粉砕して樹脂押出機に供
給することによつて反復使用でき経済的であ
る。(d) Since the heat-resistant resin cover is molded from thermoplastic resin nylon or polymethylpentene, it can be used repeatedly and is economical by crushing it after peeling and feeding it to a resin extruder. .
(e) 押出成形によりゴムホースに被せた耐熱性樹
脂カバーを加熱・加硫した後、直ちに耐熱性樹
脂カバーにその剥離を容易にするためのキズを
ゴムホースに達しない深さで長手方向につける
から、耐熱性樹脂カバーや筋付機を加熱する必
要がなく、効率よくキズを付けることができ、
しかも、冷却後にゴムホースの表面を損傷する
ことなく耐熱性樹脂カバーの剥離を容易に行え
る。(e) Immediately after heating and vulcanizing the heat-resistant resin cover placed over the rubber hose by extrusion molding, scratches are made on the heat-resistant resin cover in the longitudinal direction to a depth that does not reach the rubber hose to facilitate its removal. , there is no need to heat the heat-resistant resin cover or creasing machine, and scratches can be made efficiently.
Moreover, the heat-resistant resin cover can be easily peeled off after cooling without damaging the surface of the rubber hose.
第１図は本発明方法の一実施例の説明図、第２
図は従来の加硫方法の一例を説明するための断面
図である。
１０……押出機、１１……マンドレル、１２…
…ブレーダ、１３……押出機、１４……樹脂用押
出機、１５……加硫槽、１６……筋付機、１７…
…冷却槽、１８……剥離機、２０……ゴムホー
ス、２１……内ゴムチユーブ、２２……補強糸、
２３……外ゴムカバー、２４……耐熱樹脂カバ
ー、２５……キズ。
Fig. 1 is an explanatory diagram of one embodiment of the method of the present invention;
The figure is a sectional view for explaining an example of a conventional vulcanization method. 10... Extruder, 11... Mandrel, 12...
... Blader, 13 ... Extruder, 14 ... Resin extruder, 15 ... Vulcanization tank, 16 ... Creasing machine, 17 ...
... Cooling tank, 18 ... Peeling machine, 20 ... Rubber hose, 21 ... Inner rubber tube, 22 ... Reinforcement thread,
23... Outer rubber cover, 24... Heat resistant resin cover, 25... Scratch.
Claims (1)
ムホースを連続的に加熱・加硫するにあたり、押
出成形された未加硫のゴムホースの外周に、この
ゴムホースの素材とは非接着の加硫温度より高い
融点を持つナイロン又はポリメチルペンテンから
なる耐熱性樹脂カバーを押出成形により被せ、下
方に湾曲した加硫槽中の高温・常圧の加硫媒体で
連続的に加熱・加硫した後、耐熱性樹脂カバーに
ゴムホースに達しない深さのキズを長手方向につ
け、冷却した後に耐熱性樹脂カバーを剥離除去
し、剥離後の耐熱性樹脂カバーを粉砕して反復使
用することを特徴とするホースの連続加硫方法。1. When continuously heating and vulcanizing an unvulcanized rubber hose in a liquid vulcanizing medium at high temperature and normal pressure, the outer periphery of the extruded unvulcanized rubber hose is non-adherent to the material of the rubber hose. A heat-resistant resin cover made of nylon or polymethylpentene, which has a melting point higher than the vulcanization temperature of After sulfurizing, scratch the heat-resistant resin cover in the longitudinal direction to a depth that does not reach the rubber hose, and after cooling, peel and remove the heat-resistant resin cover, and crush the peeled heat-resistant resin cover for repeated use. Features a continuous vulcanization method for hoses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59194369A JPS6172507A (en) | 1984-09-17 | 1984-09-17 | Continuously vulcanizing process of hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59194369A JPS6172507A (en) | 1984-09-17 | 1984-09-17 | Continuously vulcanizing process of hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6172507A JPS6172507A (en) | 1986-04-14 |
| JPH0521724B2 true JPH0521724B2 (en) | 1993-03-25 |
Family
ID=16323439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59194369A Granted JPS6172507A (en) | 1984-09-17 | 1984-09-17 | Continuously vulcanizing process of hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6172507A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008004636A1 (en) * | 2008-01-16 | 2009-07-23 | Robert Bosch Gmbh | Process for producing extruded profiles |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934578A (en) * | 1972-07-31 | 1974-03-30 | ||
| JPS53101078A (en) * | 1977-02-17 | 1978-09-04 | Furukawa Electric Co Ltd | Vulcanization apparatus for section such as rubber* plastics |
| JPS551318B2 (en) * | 1976-11-30 | 1980-01-12 | ||
| JPS56123851A (en) * | 1980-03-05 | 1981-09-29 | Kinugawa Rubber Ind Co Ltd | Manufacturing of rubber hose and stick rubber |
| JPS5793132A (en) * | 1980-12-01 | 1982-06-10 | Togawa Gomme Seizosho:Kk | Production of rubber hose |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS551318U (en) * | 1978-06-16 | 1980-01-07 |
-
1984
- 1984-09-17 JP JP59194369A patent/JPS6172507A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934578A (en) * | 1972-07-31 | 1974-03-30 | ||
| JPS551318B2 (en) * | 1976-11-30 | 1980-01-12 | ||
| JPS53101078A (en) * | 1977-02-17 | 1978-09-04 | Furukawa Electric Co Ltd | Vulcanization apparatus for section such as rubber* plastics |
| JPS56123851A (en) * | 1980-03-05 | 1981-09-29 | Kinugawa Rubber Ind Co Ltd | Manufacturing of rubber hose and stick rubber |
| JPS5793132A (en) * | 1980-12-01 | 1982-06-10 | Togawa Gomme Seizosho:Kk | Production of rubber hose |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6172507A (en) | 1986-04-14 |
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