JPS59146829A - Manufacture of bent rubber hose with reinforcing thread therein - Google Patents

Manufacture of bent rubber hose with reinforcing thread therein

Info

Publication number
JPS59146829A
JPS59146829A JP1960983A JP1960983A JPS59146829A JP S59146829 A JPS59146829 A JP S59146829A JP 1960983 A JP1960983 A JP 1960983A JP 1960983 A JP1960983 A JP 1960983A JP S59146829 A JPS59146829 A JP S59146829A
Authority
JP
Japan
Prior art keywords
mandrel
rubber hose
hose
reinforcing thread
rubber
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.)
Pending
Application number
JP1960983A
Other languages
Japanese (ja)
Inventor
Shiro Honna
本名　四郎
Hiroki Chokai
鳥海　広記
Toshihiko Kaihou
海宝　「とし」彦
Yasutaka Nakamura
安孝 中村
Hiroshi Kitayama
北山　弘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kinugawa Rubber Industrial Co Ltd
Original Assignee
Kinugawa Rubber Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kinugawa Rubber Industrial Co Ltd filed Critical Kinugawa Rubber Industrial Co Ltd
Priority to JP1960983A priority Critical patent/JPS59146829A/en
Publication of JPS59146829A publication Critical patent/JPS59146829A/en
Pending legal-status Critical Current

Links

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
    • 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
    • B29C53/02—Bending or folding
    • B29C53/08—Bending or folding of tubes or other profiled members
    • B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
    • 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
    • B29D23/003—Pipe joints, e.g. straight joints
    • B29D23/006—Elbows
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • 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
    • B29L2023/22—Tubes or pipes, i.e. rigid

Abstract

PURPOSE:To provide a method for the production of the titled hose in good yield, wherein the extension of the hose can be obviated when a mandrel is withdrawn from the hose, and an elongate mandrel can be used, by semivulcanizing a rubber hose with reinforcing threads therein, and then withdrawing a mandrel from the rubber hose. CONSTITUTION:First, the unvulcanized rubber hose 8 with reinforcing threads therein is taken up onto a take-up drum 18, and then after it is semivulcanized in an autoclave 20 or the like, the rubber hose 8 is withdrawn from the mandrel 2. Then after the semivulcanized rubber hose 8 is cut, a bent mandrel 24 is inserted into the cut semivulcanized rubber hose followed by the vulcanization to obtain the intended rubber hose. As the mandrel 2 may be preferably used a flexible mandrel of a nylon, or the like.

Description

【発明の詳細な説明】 本発明は補強糸入り曲りゴムホースの製造方法に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a curved rubber hose with reinforcing threads.

従来、補強糸入り曲りゴムホースの製造方法としては次
の方法が知られている。まず鉄のマンドレル上に内面ゴ
ムを形成し、その上に補強糸を巻着する。更にその上に
外面ゴムを形成して未加硫の補強糸入りゴムホースを作
成する。次いでこのゴムホースかう鉄マンドレルを引き
抜き、ゴムホースを裁断する。Conventionally, the following method is known as a method for manufacturing a curved rubber hose containing reinforcing thread. First, an inner rubber layer is formed on an iron mandrel, and reinforcing thread is wound on top of it. Furthermore, an outer rubber is formed on it to produce an unvulcanized reinforcing thread-containing rubber hose. Next, the iron mandrel surrounding this rubber hose is pulled out and the rubber hose is cut.

裁断したゴムホースに曲りマンドレルを挿入し加硫を行
ない所望の補強糸入り曲りゴムホースを得る。しかし従
来のこの種の方法には次のような欠点がある。すなわち
マンドレルとして長尺マンドレルを使うことができない
ということである。なぜなら、マンドレルの引き抜きは
未加硫状態で行なうため、長尺マンドレルを使うと引き
抜き時にゴムホースがのびてしまうからである。一方マ
ンドレルとして２〜３ｍ長さの短尺マンドレルの場合に
は、短尺の長さに合わせて裁断するが、その長さは必要
とする長さと必らずしｂ・一致しない。従って歩留りの
低下をまねくことになる。A bending mandrel is inserted into the cut rubber hose and vulcanization is performed to obtain a desired bending rubber hose containing reinforcing thread. However, this type of conventional method has the following drawbacks. In other words, a long mandrel cannot be used as the mandrel. This is because the mandrel is pulled out in an unvulcanized state, so if a long mandrel is used, the rubber hose will stretch when pulled out. On the other hand, in the case of a short mandrel with a length of 2 to 3 m, it is cut according to the short length, but the length does not necessarily match the required length. This results in a decrease in yield.

本発明は従来の方法のかかる欠点を解決することを目的
としてなされたものであり、本発明の方法は、未加硫の
補強糸入りゴムホースを巻き取りドラムに巻き取り、半
加硫を行なった後にマンドレル２の引き抜きを行ない、
その後裁断、曲りマンドレル２４の挿入、加硫を行なう
補強糸入り曲りゴムホースの製造方法である。The present invention has been made with the aim of solving the drawbacks of the conventional methods, and the method of the present invention involves winding an unvulcanized reinforcing thread-containing rubber hose onto a winding drum, semi-vulcanizing the hose, and then semi-vulcanizing it. Pull out mandrel 2,
Thereafter, cutting, insertion of a bending mandrel 24, and vulcanization are performed in this method of manufacturing a bent rubber hose with reinforcement thread.

本発明ではまず未加硫の補強糸入りゴムホースを巻き取
りドラム１Ｂに巻き取る。補強糸入りゴムホースとは、
内面ゴム１０上に補強糸１２を巻着し、その上に外面ゴ
ム１４を形成したものである。補強糸１２の種類、内面
ゴム１０、外面ゴム１４０種類は問わない。In the present invention, first, an unvulcanized reinforcing thread-containing rubber hose is wound onto a winding drum 1B. What is a rubber hose with reinforced thread?
A reinforcing thread 12 is wound around an inner surface rubber 10, and an outer surface rubber 14 is formed thereon. The type of reinforcing thread 12, the inner rubber 10, and the outer rubber 140 do not matter.

巻き取りドラム１８もその種類は問わずゴムホース８を
巻き取り得るものならばよい。The winding drum 18 may be of any type as long as it can wind up the rubber hose 8.

次に半加硫を行なう。半加硫とは、ゴムホース８からマ
ンドレル２を引き抜く際にゴムホース８ののびが生ぜず
かつ完全には弾性化しない程度の加硫をいう。かかる加
硫を行ないつるものならば加硫装置・加硫方法は問わな
い。Next, perform semi-vulcanization. Semi-vulcanization refers to vulcanization to such an extent that the rubber hose 8 does not stretch and does not become completely elastic when the mandrel 2 is pulled out from the rubber hose 8. Any vulcanizing device or method may be used as long as the product can be cured in this manner.

第２図に示す実施例ではオートクレーブ２０中で直接蒸
気加硫を行なっている。加硫温度、加硫時間はゴムホー
ス８の厚み等を考慮して適宜決定すればよい。たとえば
外径約１４簡のゴムホース８の場合１５０℃×２０分の
加硫が好ましい。In the embodiment shown in FIG. 2, steam vulcanization is carried out directly in an autoclave 20. The vulcanization temperature and vulcanization time may be appropriately determined in consideration of the thickness of the rubber hose 8 and the like. For example, in the case of a rubber hose 8 having an outer diameter of about 14 mm, vulcanization at 150° C. for 20 minutes is preferable.

半加硫後にマンドレル２の引抜きを行なう。After semi-vulcanization, the mandrel 2 is pulled out.

本発明で使用するマンドレル２はフレキシブルマンドレ
ルｆ６る。フレキシブルマンドレル自体は公知でありた
とえばナイロン製のフレキシブルマンドレルがある。長
すは１００ｍのものでも使用できる。The mandrel 2 used in the present invention is a flexible mandrel f6. Flexible mandrels themselves are well known, and for example, there are flexible mandrels made of nylon. A length of 100m can also be used.

マンドレル２抜き取り後は、従来の方法と同様に裁断、
曲りマンドレル２４の挿入、加硫を行なう。After removing the mandrel 2, cut it in the same way as the conventional method.
The bent mandrel 24 is inserted and vulcanization is performed.

本発明は以上のように構成したので、引き抜き時ののび
がなく、マンドレルとして長尺マンドレルを使用するこ
とができ、また分留りが向上する。Since the present invention is configured as described above, there is no stretching during drawing, a long mandrel can be used as the mandrel, and fractionation is improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は補強糸入り曲りゴムホースの製造工程図、＠２
図は、加硫装置の１圃面図、第３は曲りマンドレルの斜
視図である。 ２・・・マンドレル　　８・・・補強糸入すコムホース
　　１０・・・内面ゴム　　１２・・・補強糸１４・・
・外面ゴム　　１Ｂ・・・巻取ゆドラム２０・・・オー
トクレーブ　　２４・・・曲りマンドレルFigure 1 is a manufacturing process diagram of a bent rubber hose with reinforcing thread, @2
The figure is a first field view of the vulcanizing device, and the third is a perspective view of the curved mandrel. 2... Mandrel 8... Comb hose into which reinforcing thread is inserted 10... Inner surface rubber 12... Reinforcing thread 14...
・External rubber 1B... Take-up drum 20... Autoclave 24... Bent mandrel

Claims (1)

【特許請求の範囲】[Claims] 未加硫の補強糸入りゴムホースを巻き取りドラムに巻き
取り、半加硫を行なった後にマンドレルの引き抜きを行
ない、その後裁断、曲りマンドレルの挿入、加硫を行な
う補強糸入り曲りゴムホースの製造方法。This method for producing a curved rubber hose containing reinforcing thread includes winding an unvulcanized rubber hose containing reinforcing thread on a winding drum, performing semi-vulcanization, pulling out a mandrel, cutting, inserting a bending mandrel, and vulcanizing.
JP1960983A 1983-02-10 1983-02-10 Manufacture of bent rubber hose with reinforcing thread therein Pending JPS59146829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1960983A JPS59146829A (en) 1983-02-10 1983-02-10 Manufacture of bent rubber hose with reinforcing thread therein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1960983A JPS59146829A (en) 1983-02-10 1983-02-10 Manufacture of bent rubber hose with reinforcing thread therein

Publications (1)

Publication Number Publication Date
JPS59146829A true JPS59146829A (en) 1984-08-22

Family

ID=12003927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1960983A Pending JPS59146829A (en) 1983-02-10 1983-02-10 Manufacture of bent rubber hose with reinforcing thread therein

Country Status (1)

Country Link
JP (1) JPS59146829A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563664A1 (en) * 1984-03-05 1985-10-31 Jamak Inc METHOD FOR FORMING SPARK PLUG BITS
EP1153733A2 (en) * 2000-05-12 2001-11-14 The Goodyear Tire & Rubber Company Method of manufacturing curved hose

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563664A1 (en) * 1984-03-05 1985-10-31 Jamak Inc METHOD FOR FORMING SPARK PLUG BITS
EP1153733A2 (en) * 2000-05-12 2001-11-14 The Goodyear Tire & Rubber Company Method of manufacturing curved hose
EP1153733B1 (en) * 2000-05-12 2004-11-24 The Goodyear Tire & Rubber Company Method of manufacturing curved hose

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