JP2004142371A - Welding device for hose - Google Patents

Welding device for hose Download PDF

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Publication number
JP2004142371A
JP2004142371A JP2002312284A JP2002312284A JP2004142371A JP 2004142371 A JP2004142371 A JP 2004142371A JP 2002312284 A JP2002312284 A JP 2002312284A JP 2002312284 A JP2002312284 A JP 2002312284A JP 2004142371 A JP2004142371 A JP 2004142371A
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JP
Japan
Prior art keywords
hose
hoses
guide
pressing
welding device
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
JP2002312284A
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Japanese (ja)
Inventor
Eiji Mikami
三上　英二
Kazutoshi Tange
丹下　一利
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.)
TEITO GOMU KK
TEITO RUBBER Ltd
Original Assignee
TEITO GOMU KK
TEITO RUBBER 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.)
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Priority to JP2002312284A priority Critical patent/JP2004142371A/en
Publication of JP2004142371A publication Critical patent/JP2004142371A/en
Pending legal-status Critical Current

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    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5227—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8223—Worm or spindle mechanisms
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes
    • B29L2031/602—Multi-tubular articles, i.e. composed of a plurality of tubes composed of several elementary tubular elements

Abstract

<P>PROBLEM TO BE SOLVED: To provide a welding device with a simple constitution, which enables two resin hoses containing reinforcing layers to be pulled and aligned, so as to be surely welded along a longitudinal direction. <P>SOLUTION: A device body (1) is provided with an inlet guide for introducing the two hoses (2) and (2) to be welded together, and a guide member (13) is provided inside the inlet guide. A gap (14) is formed between the two hoses (2) and (2) by using the guide member (13). While the gap (14) is created, side surfaces (31) and (31) of the hoses (2) and (2) are heated and melted by a jet heater (16). After that, the molten side surfaces are rapidly pressure-bonded together by pressing rollers (20) and (20), so that the two hoses (20) and (20) can be welded together. An obtained hose (33) with a good appearance, whose adjacent side surfaces undergo sure welding (32), is easy to be handled. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は電解水生成器（浄水器）、給湯器等の機器に使用されている給水ホースや排水ホースのように、複数本のホースを使用する際、これらのホースを長手方向に連結できるようにしたホースの溶着装置に関するものである。
【０００２】
【従来の技術】
電解水生成器等の器具では、給水ホースと排水ホースの２本のホースが使用され、これらのホースがばらばらであると見栄えが悪く、取り扱いも面倒なので、テープ等の結束具で束ねられていることが多い。しかし、そのような結束具を用いてもやはり体裁が良くないため、塩化ビニル樹脂等のプラスチック材料で単層構造の２本のホースを連装で押し出し、成形時に一体化して結束したホースが使用されている。また、２本のホースを押し出すときに、ホースの外面に塩化ビニル樹脂や熱可塑性エラストマーを同時に押出し２本のホースを被覆して一体化する技術も知られている（例えば特許文献１、２参照）。
【０００３】
しかし、近年建物が高層化されるに伴って水道水の水圧が従来の０．１９６　〜０．２９４　Ｍｐａから０．６８６　Ｍｐａ程度に高圧化され、今迄のように塩化ビニル樹脂製の単層管を電解水生成器等に使用するには耐圧的に無理があり、耐圧性に優れた補強層入りホースが求められるようになってきている。このような補強層入りホースの場合には、上記のような単層構造のホースと違って２本のホースを成形時に連装で押出成形して一体化することは経済的でない。すなわち、例えば内層／補強層／外層を有する３層構造の補強層入りホースでは、１本のホースを成形するのに２台の押出機と１台のブレーダーが必要であるから、２本のホースを連装で成形するためには４台の押出機と２台のブレーダーを用いなければならず、また各ホースを被覆材で連結被覆するためには被覆材押出機も必要となり、一貫生産ラインは非常に大規模なものとなるので、経済的であることは言えない。
【０００４】
【特許文献１】
特開平８−２６７５８２号公報、図１。
【特許文献２】
特開２００１−２７１９６８号公報、図１。
【０００５】
【発明が解決しようとする課題】
本発明の解決課題は、補強層入り樹脂ホース等のような多層構造の樹脂ホースを複数本揃えて長手方向に溶着し一体化でき、構成が簡単で経済的に得られるホースの溶着装置を提供することである。
【０００６】
また、本発明の解決課題は、上記ホースの溶着装置において、２本のホースの接触面どうしを確実に溶着し、かつ溶着強度や溶着面積を調整できるようにしたホースの溶着装置を提供することである。
【０００７】
【課題を解決するための手段】
本発明によれば、溶着すべき２本のホースを引き揃えて装置本体に導入するための入口ガイドと、該入口ガイドを通った２本のホースの間に位置する案内部材と、該案内部材によりホース間に生じた間隙に面する上記各ホースの側面を溶融するようホースを加熱するホース加熱手段と、溶融した各ホースの側面と側面を圧着するよう上記ホースを押圧する押圧手段と、溶着されたホースを装置本体外に排出するための排出ガイドを具備するホースの溶着装置が提供され、上記課題を解決することができる。
【０００８】
また、本発明によれば、上記ホースの溶着装置において、上記案内部材はホースの進行方向の中心線上に起立した案内杆で構成され、上記押圧手段は上記ホースを挟着するよう間隔をあけて対向しかつ該間隔を調整できるよう移動可能に設けられた複数の押圧ローラーを含むホースの溶着装置が提供され、上記課題を解決することができる。
【０００９】
【発明の実施の形態】
図１〜図３は本発明によるホースの溶着装置の一実施例を示し、装置本体（１）の中央には溶着すべき２本のホース（２），（２）が長手方向に進行する走行路が形成され、該走行路の入口側には２本のホース（２），（２）を引き揃えて本体（１）に導入するための入口ガイド（３）が設けられている。図において、該入口ガイド（３）は、横方向に左右に並べて搬入される２本のホースの広がりを規制する横方向ガイド（４）と縦方向の位置を規制する縦方向ガイド（５）を具備し、上記横方向ガイド（４）は横溝（６），（６）に沿って調整可能に設けた回転自在な縦ローラー（７），（７）で構成されている。また、上記縦方向ガイド（５）は支持枠（８）に回転自在に取り付けた下ローラー（９）と該下ローラーに対向し上下方向に縦溝（１０）に沿って調整ねじ（１１）により調整可能に設けられた上ローラー（１２）を有している。なお、２本のホースを縦方向に上下に並べて搬入させることもできる。
【００１０】
上記入口ガイド（３）の内方には、２本のホース（２），（２）の間に位置するよう案内部材（１３）が設けられており、該案内部材によりホースが一方側に偏って進行しないようにすると共に２本のホース間に間隙（１４）が形成される。該案内部材（１３）は、図に示す実施例ではホースの進行方向の中心線上に起立した１本のピン状の案内杆（１５）で構成されているが、断面略三角形の柱状や板状に形成したり、２本若しくは３本以上の棒状体やローラー等で構成することもできる（図示略）。なお、上記ホースを縦方向に引き揃えて搬入する場合は、上記案内部材は水平方向に延びるように設ければよい。
【００１１】
上記案内部材（１３）により、上記ホース（２），（２）間には進行方向の中心線に沿って開口する間隙（１４）が形成され、該間隙が存在している段階で該間隙（１４）に面している上記各ホースの側面を溶融するよう該ホースを加熱するためのホース加熱手段（１６）が設けられている。該ホース加熱手段（１６）として、図に示す実施例では熱風の吹出口（１７）をホース間の上記間隙（１４）に向けて位置させたホットジェットヒーター等の熱風加熱装置を用いて約３００〜４００℃程度に加熱するようにしているが、その他の適宜の加熱手段を用いることもできる。なお、図１等においては、説明の都合上、該加熱装置の支持構造を省略してあるが、好ましくは上記吹出口とホース間の距離を調整できるように支持してあり、また吹出口からの熱風の温度も調節できるようにしてある。また、図においては、上方から下方に向けて熱風の吹出口を設けてあるが、下方から上方に向けて設けてもよく、２本のホースを上下方向に搬送する場合は横方向からホースの側面を加熱するようにすればよい。
【００１２】
上記吹出口（１７）からの熱風をホースの側面に当てることにより該側面は溶融されるが、その際溶着に関与しない部分のホースの表面は溶融せずに上記側面だけを溶融できることが好ましい。そのためには、上記熱風を的確にホースの側面に誘導できるよう熱風誘導仕切り板（１８）を設ければよい。該熱風誘導仕切り板（１８）は、耐熱性を有する板状体で適宜の形状に作られ、上記吹出口（１７）の近くに設けて上記熱風が及ぶ範囲や風量等を調整できるようにしてある。
【００１３】
上記ホース加熱手段により溶融したホースの側面を速やかに圧着するよう押圧手段が設けられている。該押圧手段は上記２本のホースの外径の合計寸法よりも狭い間隔をあけて適宜形状の押圧体等を設け、該押圧体の表面を滑るように２本のホースを進入させて上記ホースが圧着されるようにしてもよいが、図に示す実施例では上記ホースが嵌合する溝（１９）を有する押圧ローラー（２０），（２０）　を狭い間隔で対向して設け、該ローラー（２０），（２０）　が回転しつつ上記ホースを圧着するようにしてある。なお、該押圧手段は、上記ホースを両側から押圧する方向にばねその他の付勢手段で上記押圧ローラー（２０）を付勢することもでき、またローラー自体を適宜の駆動手段で積極的に回転させるようにしてもよい。
【００１４】
上記のように対向する押圧ローラー（２０），（２０）　は、適宜の組数設けることもできるが、数が少ないと圧着が不充分で溶着が不完全になったり、多過ぎると圧着力は大きいがホースの引き取り抵抗も大きくなって巻取機等に多大な負荷がかかる。従って、該押圧ローラーの数は、溶着効果とその後の冷却効果を考慮して数組、実験によれば３〜５組設けると効果的であることが確められた。そして、これらの押圧ローラー（２０），（２０）　は１組ごとに独立して設けてもよいが、図に示すように片側に並んだ各押圧ローラーをそれぞれ共通の支持台（２１），（２１）　上に設けることが好ましい。なお、冷却効果を高めるためには後段のローラー等に冷却装置を設けることもできる。
【００１５】
上記押圧ローラー（２０），（２０）　若しくは該押圧ローラーを保持する支持台（２１），（２１）　は、装置本体（１）に固定的に設けてもよいが、好ましくは対向するローラー間の間隔を調整できるようホースの進行方向に対して横方向に移動可能に設けるとよい。このようにして対向するローラー間の間隔を変更すると、上記ホース（２），（２）の接触面の圧着度合が変化し、これによりホース（２），（２）の溶着面積や溶着強度を調整することができる。
【００１６】
上記のようにローラーを横方向に移動させる構成としては、種々に構成することができる。図に示す実施例では、上記支持台（２１），（２１）　を、本体（１）に設けた保持枠（２２），（２２）　内に摺動可能に挿入し、該支持台（２１），（２１）　に設けた締付ねじ（２３）を保持枠（２２）に形成した案内溝（２４）から突出させ、移動させた任意の位置で支持台を固定できるようにしてある。なお、２つの支持台等を連動して左右に移動できるようにしてもよい。
【００１７】
上記押圧手段の次には溶着されたホースを装置本体外へ排出するための排出ガイド（２５）が設けられている。該排出ガイド（２５）は、上記入口ガイド（３）の縦方向ガイド（５）とほぼ同様に構成され、支持枠（２６）に回転自在に取り付けた下ローラー（２７）と該下ローラーに対向して上下方向に縦溝（２８）に沿って調整ねじ（２９）により調整可能に設けられた上ローラー（３０）を有している。なお、上記装置本体（１）の外方には、溶着されたホースを巻き取るための自動巻取機（図示略）を設けてあり、該巻取機によりホースは進行するが、上述したように押圧ローラーを適宜の駆動手段で駆動することによりホースを進行させることもできる。
【００１８】
【実施例】
超密度ポリエチレンを内層、外層に用い、補強層をポリエステル繊維で構成した補強層入り樹脂ホースを形成した。このホース（２），（２）を２本引き揃えて図１〜図３に示す装置に導入した。各ホース（２），（２）は、上記案内部材（１３）により一方側に偏ることなく進行し、図４（Ａ）に示すように両ホース（２），（２）間には充分な間隙（１４）が確実に形成された。そして、ホットジェットヒーター（１６）の吹出口（１７）から出る約３００〜４００℃の熱風が上記ホース（２），（２）の側面（接触面）（３１），（３１）　に当り、該側面が溶融した。その後、直ちに押圧ローラー（２０），（２０）　間に上記ホース（２），（２）は進入し、該ローラー（２０），（２０）　により圧着され、上記側面（３１），（３１）　部分で溶着（３２）し一体化されたホース（３３）が得られた。
【００１９】
上記のように本発明によるホースは、側面（接触面）（３１）どうしを溶着して２本のホースを連結一体化するので、ホースの外層が同一材料であれば、上記実施例に示す樹脂以外の適宜の樹脂や繊維を用いた補強層入り樹脂ホース、若しくは補強層を有しない多層構造の樹脂ホースであっても一体化することができる。また、上記案内部材やホース加熱手段等を適宜位置に複数設けることにより３本若しくはそれ以上の複数本のホースでも確実に溶着連結することができる。また、得られたホース（３３）の端部は、溶着部（３２）を引き裂くことにより簡単に分離することもできる。
【００２０】
【発明の効果】
本発明は上記のように構成され、入口ガイドを通った２本のホース間に位置するよう案内部材を設け、ホース間に間隙が生じている間に該間隙に面するホースの側面を加熱手段で加熱溶融し、該溶融した側面と側面を押圧手段により圧着してホースを溶着するようにしたので、上記ホースは一方側に偏ることなく均等に加熱され、かつホース間に生じた間隙を通して溶着すべき側面を的確に加熱溶融することができ、該溶融部分を圧着することにより確実に溶着することができる。
【００２１】
また、上記押圧手段を対向する押圧ローラー等で構成し、該ローラー間の間隔を調整できるようにすると、２本の上記ホースを両側から挟着する圧着力が変わり、それにより上記ホースの接触面の幅が変化し、溶着面積を変えることができ、溶着強度を調整することができる。
【００２２】
上記のようにして、高層建築物で使用する電解水生成器のように耐圧性を必要とする２本のホースを溶着された補強層入り樹脂ホースで構成することができ、しかも装置本体の構成が簡単で経済的に得ることができる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す側面図。
【図２】平面図。
【図３】正面図。
【図４】溶着工程を示す説明図
【符号の説明】
１…装置本体
２，２…ホース
３…入口ガイド
１３…案内部材
１４…間隙
１６…ホース加熱手段
１７…吹出口
１８…熱風誘導仕切り板
２０…押圧ローラー
２５…排出ガイド[0001]
TECHNICAL FIELD OF THE INVENTION
When the present invention uses a plurality of hoses, such as a water supply hose and a drainage hose used in devices such as an electrolyzed water generator (water purifier) and a water heater, the hoses can be connected in a longitudinal direction. The present invention relates to a welding device for a hose.
[0002]
[Prior art]
In equipment such as an electrolyzed water generator, two hoses, a water supply hose and a drainage hose, are used. If these hoses are separated, the appearance is poor and the handling is troublesome, so they are bundled with a tying tool such as tape. Often. However, even if such a tying tool is used, the appearance is still not good. Therefore, two hoses having a single-layer structure made of a plastic material such as a vinyl chloride resin are extruded in series, and a hose that is integrated and tied during molding is used. ing. Also, a technique is known in which when extruding two hoses, a vinyl chloride resin or a thermoplastic elastomer is simultaneously extruded on the outer surfaces of the hoses, and the two hoses are covered and integrated (for example, see Patent Documents 1 and 2). ).
[0003]
However, in recent years, with the rise of buildings, the water pressure of tap water has been increased from the conventional 0.196 to 0.294 Mpa to about 0.686 Mpa, and a single layer of vinyl chloride resin has been used. It is impossible to use a tube for an electrolyzed water generator or the like in terms of pressure resistance, and a hose with a reinforcing layer having excellent pressure resistance has been required. In the case of such a hose with a reinforcing layer, it is not economical to extrude and integrate two hoses at the time of molding, unlike the hose having a single-layer structure as described above. That is, for example, in the case of a hose with a reinforcing layer having a three-layer structure having an inner layer / a reinforcing layer / an outer layer, two extruders and one braider are required to form one hose, so two hoses are required. In order to form a series of products, it is necessary to use four extruders and two braiders, and to connect and coat each hose with a coating material, a coating material extruder is also required. It's so large that it's not economical.
[0004]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 8-267852, FIG.
[Patent Document 2]
JP-A-2001-271968, FIG.
[0005]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to provide a hose welding apparatus which can be welded and integrated in the longitudinal direction by aligning a plurality of resin hoses having a multilayer structure such as a resin hose with a reinforcing layer, etc., and which is simple and economical to obtain. It is to be.
[0006]
Another object of the present invention is to provide a hose welding device in which the contact surfaces of two hoses are reliably welded and the welding strength and the welding area can be adjusted in the hose welding device. It is.
[0007]
[Means for Solving the Problems]
According to the present invention, an inlet guide for aligning two hoses to be welded and introducing them into the apparatus main body, a guide member located between the two hoses passing through the inlet guide, and the guide member Hose heating means for heating the hoses so as to melt the side faces of the hoses facing the gaps formed between the hoses; pressing means for pressing the hoses to press the side faces and the side faces of the melted hoses; welding A hose welding device including a discharge guide for discharging the drawn hose to the outside of the device main body is provided, and the above problem can be solved.
[0008]
Further, according to the present invention, in the hose welding device, the guide member is formed of a guide rod that stands on a center line in the traveling direction of the hose, and the pressing unit is spaced apart so as to clamp the hose. A hose welding device including a plurality of pressure rollers opposed to each other and movably provided so as to be able to adjust the interval is provided, and the above-described problem can be solved.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1 to 3 show an embodiment of a hose welding apparatus according to the present invention, in which two hoses (2) and (2) to be welded travel in a longitudinal direction in the center of the apparatus body (1). A road is formed, and an entrance guide (3) for aligning the two hoses (2) and (2) and introducing them into the main body (1) is provided at the entrance side of the traveling path. In the figure, the entrance guide (3) comprises a horizontal guide (4) for restricting the spread of two hoses which are conveyed side by side in the horizontal direction and a vertical guide (5) for restricting the vertical position. The horizontal guide (4) is provided with rotatable vertical rollers (7) and (7) provided so as to be adjustable along the horizontal grooves (6) and (6). The vertical guide (5) is provided with a lower roller (9) rotatably mounted on the support frame (8) and an adjusting screw (11) facing the lower roller and vertically extending along the vertical groove (10). It has an adjustable upper roller (12). In addition, two hoses can also be carried in a line up and down in the vertical direction.
[0010]
A guide member (13) is provided inside the inlet guide (3) so as to be located between the two hoses (2), (2), and the guide member biases the hose to one side. And a gap (14) is formed between the two hoses. In the embodiment shown in the drawing, the guide member (13) is constituted by a single pin-shaped guide rod (15) standing on the center line in the traveling direction of the hose. Or two or three or more rods or rollers (not shown). In the case where the hoses are aligned in the vertical direction and carried in, the guide members may be provided so as to extend in the horizontal direction.
[0011]
The guide member (13) forms a gap (14) that opens along the center line in the traveling direction between the hoses (2) and (2). When the gap exists, the gap (14) is formed. A hose heating means (16) is provided for heating the hoses so as to melt the side faces of the hoses facing 14). As the hose heating means (16), in the embodiment shown in the figure, a hot-air heater such as a hot jet heater having a hot-air outlet (17) positioned toward the gap (14) between the hoses is used for about 300 hours. Although heating is performed to about 400 ° C., other appropriate heating means may be used. In FIG. 1 and the like, the support structure of the heating device is omitted for convenience of description, but it is preferably supported so that the distance between the outlet and the hose can be adjusted. The temperature of the hot air can be adjusted. In the figure, the hot air outlet is provided from the upper side to the lower side. However, the outlet may be provided from the lower side to the upper side. What is necessary is just to heat a side surface.
[0012]
The side surface is melted by applying hot air from the outlet (17) to the side surface of the hose. At this time, it is preferable that only the side surface can be melted without melting the surface of the hose which is not involved in welding. For this purpose, a hot air guide partition plate (18) may be provided so that the hot air can be accurately guided to the side of the hose. The hot air induction partition plate (18) is made of a heat-resistant plate-like body and has an appropriate shape, and is provided near the outlet (17) so that the range and the amount of the hot air can be adjusted. is there.
[0013]
Pressing means is provided to quickly press the side surface of the hose melted by the hose heating means. The pressing means is provided with an appropriately shaped pressing body or the like at an interval smaller than the total dimension of the outer diameters of the two hoses, and the two hoses are advanced so as to slide on the surface of the pressing body. In the embodiment shown in the figure, pressing rollers (20) and (20) having a groove (19) into which the hose is fitted are provided to face each other at a small interval, and the rollers ( 20) and (20) are adapted to crimp the hose while rotating. The pressing means can also urge the pressing roller (20) by a spring or other urging means in a direction of pressing the hose from both sides, and the roller itself is positively rotated by an appropriate driving means. You may make it do.
[0014]
As described above, the pressing rollers (20) and (20) facing each other can be provided in an appropriate number. However, if the number is small, the pressure bonding is insufficient and the welding is incomplete. Although large, the take-up resistance of the hose also increases, and a large load is applied to the winder and the like. Therefore, it was confirmed that it is effective to provide several sets of the pressing rollers in consideration of the welding effect and the subsequent cooling effect. These pressing rollers (20) and (20) may be provided independently for each pair. However, as shown in the figure, each pressing roller arranged on one side is connected to a common support base (21), ( 21) It is preferable to provide it above. In addition, in order to enhance the cooling effect, a cooling device may be provided in a roller or the like at a later stage.
[0015]
The above-mentioned pressing rollers (20), (20) or the supports (21), (21) for holding the pressing rollers may be fixedly provided on the apparatus main body (1), but preferably between the opposing rollers. It is preferable that the space be adjustable so that the space can be adjusted in the lateral direction with respect to the traveling direction of the hose. When the distance between the opposing rollers is changed in this manner, the degree of crimping of the contact surfaces of the hoses (2) and (2) changes, thereby reducing the welding area and the welding strength of the hoses (2) and (2). Can be adjusted.
[0016]
As described above, various configurations can be used to move the roller in the lateral direction. In the embodiment shown in the figure, the support bases (21) and (21) are slidably inserted into holding frames (22) and (22) provided on the main body (1), and the support bases (21) and (22) are slidable. , (21) are projected from guide grooves (24) formed in the holding frame (22) so that the support table can be fixed at an arbitrary position where the screws are moved. In addition, you may enable it to move two support bases etc. right and left in conjunction.
[0017]
Next to the pressing means, there is provided a discharge guide (25) for discharging the welded hose out of the apparatus body. The discharge guide (25) has substantially the same configuration as the longitudinal guide (5) of the entrance guide (3), and is opposed to the lower roller (27) rotatably mounted on the support frame (26) and the lower roller. And an upper roller (30) provided in the vertical direction along the vertical groove (28) so as to be adjustable by an adjusting screw (29). An automatic winder (not shown) for winding the welded hose is provided outside the apparatus main body (1), and the hose advances by the winder. The hose can also be advanced by driving the pressing roller with appropriate driving means.
[0018]
【Example】
Using a super-density polyethylene for the inner layer and the outer layer, a resin hose with a reinforcing layer composed of a polyester fiber as the reinforcing layer was formed. Two hoses (2) and (2) were aligned and introduced into the apparatus shown in FIGS. Each of the hoses (2), (2) proceeds without being biased to one side by the guide member (13), and as shown in FIG. 4 (A), there is sufficient space between the hoses (2), (2). The gap (14) was reliably formed. Then, hot air of about 300 to 400 ° C. coming from the outlet (17) of the hot jet heater (16) hits the side surfaces (contact surfaces) (31) and (31) of the hoses (2) and (2). The sides melted. Then, the hoses (2) and (2) immediately enter between the pressing rollers (20) and (20), and are pressed by the rollers (20) and (20), and the portions of the side surfaces (31) and (31) are pressed. (32) to obtain an integrated hose (33).
[0019]
As described above, in the hose according to the present invention, the side surfaces (contact surfaces) (31) are welded to each other to connect and integrate the two hoses. A resin hose with a reinforcing layer using an appropriate resin or fiber other than the above, or a resin hose having a multilayer structure without a reinforcing layer can be integrated. In addition, by providing a plurality of guide members, hose heating means, and the like at appropriate positions, three or more hoses can be securely welded and connected. Further, the end of the obtained hose (33) can be easily separated by tearing the welded portion (32).
[0020]
【The invention's effect】
The present invention is configured as described above, wherein a guide member is provided so as to be located between two hoses passing through an inlet guide, and while a gap is formed between the hoses, a side surface of the hose facing the gap is heated by heating means. The hose is welded by pressing the melted side face and the side face by pressing means so that the hose is welded evenly without bias to one side, and welded through a gap formed between the hoses. The side surface to be heated can be accurately heated and melted, and the melted portion can be reliably welded by pressing.
[0021]
Further, when the pressing means is constituted by opposing pressing rollers or the like and the interval between the rollers can be adjusted, the pressing force for sandwiching the two hoses from both sides is changed, whereby the contact surface of the hose is contacted. , The welding area can be changed, and the welding strength can be adjusted.
[0022]
As described above, two hoses that require pressure resistance, such as an electrolyzed water generator used in a high-rise building, can be constituted by a welded resin hose with a reinforcing layer, and the structure of the apparatus body Can be obtained simply and economically.
[Brief description of the drawings]
FIG. 1 is a side view showing one embodiment of the present invention.
FIG. 2 is a plan view.
FIG. 3 is a front view.
FIG. 4 is an explanatory view showing a welding step.
DESCRIPTION OF SYMBOLS 1 ... Device main body 2, 2 ... Hose 3 ... Inlet guide 13 ... Guide member 14 ... Gap 16 ... Hose heating means 17 ... Outlet 18 ... Hot air induction partition plate 20 ... Press roller 25 ... Discharge guide

Claims (5)

溶着すべき２本のホースを引き揃えて装置本体に導入するための入口ガイドと、該入口ガイドを通った２本のホースの間に位置する案内部材と、該案内部材によりホース間に生じた間隙に面する上記各ホースの側面を溶融するようホースを加熱するホース加熱手段と、溶融した各ホースの側面と側面を圧着するよう上記ホースを押圧する押圧手段と、溶着されたホースを装置本体外に排出するための排出ガイドを具備するホースの溶着装置。An inlet guide for aligning two hoses to be welded and introducing them into the apparatus body, a guide member located between the two hoses passing through the inlet guide, and a guide member formed between the hoses. A hose heating means for heating the hoses so as to melt the side faces of the hoses facing the gap, a pressing means for pressing the hoses to press the side faces and the side faces of the melted hoses; A hose welding device provided with a discharge guide for discharging outside. 上記案内部材は、上記ホースの進行方向の中心線上に起立している案内杆である請求項１に記載のホースの溶着装置。The hose welding apparatus according to claim 1, wherein the guide member is a guide rod that stands on a center line in a traveling direction of the hose. 上記ホース加熱手段は、熱風の吹出口をホース間の上記間隙に向けて設けた熱風加熱装置である請求項１に記載のホースの溶着装置。The hose welding device according to claim 1, wherein the hose heating means is a hot-air heating device provided with a hot-air outlet directed toward the gap between the hoses. 上記吹出口とホースの間には、熱風をホースの側面に誘導する熱風誘導仕切り板が設けられている請求項３に記載のホースの溶着装置。4. The hose welding device according to claim 3, wherein a hot air guide partition plate for guiding hot air to a side surface of the hose is provided between the outlet and the hose. 上記押圧手段は上記ホースが嵌合する溝を有する押圧ローラーを含み、該押圧ローラー間で２本のホースを挟着するよう該押圧ローラーをホースの進行方向に沿って対向して設け、かつ対向する押圧ローラー間の間隔を調節できるよう移動可能に設けたことを特徴とする請求項１に記載のホースの溶着装置。The pressing means includes a pressing roller having a groove into which the hose is fitted, and the pressing roller is provided so as to sandwich two hoses between the pressing rollers along the traveling direction of the hose. The hose welding device according to claim 1, wherein the hose welding device is movably provided so as to adjust an interval between the pressing rollers.
JP2002312284A 2002-10-28 2002-10-28 Welding device for hose Pending JP2004142371A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007307875A (en) * 2006-05-22 2007-11-29 Kureha Plastics Kk Manufacturing method of aggregate of parallel tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007307875A (en) * 2006-05-22 2007-11-29 Kureha Plastics Kk Manufacturing method of aggregate of parallel tubes

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