JP2003237718A - Method for heating sealing part of resin tube - Google Patents

Method for heating sealing part of resin tube

Info

Publication number
JP2003237718A
JP2003237718A JP2002042219A JP2002042219A JP2003237718A JP 2003237718 A JP2003237718 A JP 2003237718A JP 2002042219 A JP2002042219 A JP 2002042219A JP 2002042219 A JP2002042219 A JP 2002042219A JP 2003237718 A JP2003237718 A JP 2003237718A
Authority
JP
Japan
Prior art keywords
resin tube
nozzle
hot air
spiral
seal
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
JP2002042219A
Other languages
Japanese (ja)
Inventor
Toshitada Sakai
利忠 酒井
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.)
Waiel Ind Co Ltd
Original Assignee
Waiel Ind 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 Waiel Ind Co Ltd filed Critical Waiel Ind Co Ltd
Priority to JP2002042219A priority Critical patent/JP2003237718A/en
Publication of JP2003237718A publication Critical patent/JP2003237718A/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
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B29C66/43123—Closing the ends of squeeze tubes, e.g. for toothpaste or cosmetics
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Closing Of Containers (AREA)
  • Package Closures (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a good sealing which is free from appearance defect of a sealing part and causing of puncture due to lack of a seal by uniformly heating the inner periphery of the end of a resin tube to be the sealing part of the resin tube. <P>SOLUTION: This device 9 heats the sealing part of the resin tube and is configured such that a nozzle 10 blows heated wind and it heats the end (an upper end 2c) of the resin tube 1 to be the clamped sealed part thereof. A method used for the same in which the nozzle 10 blows heated wind swirlingly in the radial direction is provided. The nozzle 10 is provided with a spiral groove 31 and/or a swirl groove 29 in the vicinity of an outlet 12 for blowing heated wind. This nozzle is the one for generating swirl in which heated wind is swirlingly blown from the outlet 12 in the radial direction through the spiral groove 31 and/or the swirl groove 29. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】この発明は、樹脂性チューブ
のシール部加熱方法に関するものであり、特に、化粧品
や接着材等の充填物を充填するための樹脂性チューブで
あって、該樹脂性チューブをクランプシールすべく、該
樹脂性チューブのシール部となる端部に熱風を噴出して
加熱し、軟化溶融させる樹脂性チューブのシール部加熱
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for heating a seal portion of a resin tube, and more particularly to a resin tube for filling a filling material such as cosmetics and adhesives. The present invention relates to a method for heating a seal portion of a resin tube in which hot air is jetted and heated to soften and melt the end portion of the resin tube that serves as a seal portion for clamp sealing.

【０００２】[0002]

【従来の技術及び発明が解決しようとする課題】従来の
此種樹脂性チューブについて図５乃至図１０に従って説
明する。図５に於て、１は化粧品或いは接着材等の充填
物が充填された完成品としての樹脂性チューブであり、
該樹脂性チューブ１は可撓性の合成樹脂で成形され、該
樹脂性チューブ１のチューブ本体２一端部には注出口
（図示せず）を備えた首部２ａと、該首部２ａと該チュ
ーブ本体２端部とを全周に及んで結合する肩部２ｂとが
該チューブ本体２と一体に成形されており、該首部２ａ
にねじ付きキャップ３が着脱自在に設けられており、更
に、該チューブ本体２内に充填物（図示せず）が充填さ
れ、前記チューブ本体２の他端部は熱融着によりクラン
プシールされている。2. Description of the Related Art A conventional resin tube of this type will be described with reference to FIGS. In FIG. 5, reference numeral 1 is a resin tube as a finished product filled with a filling material such as cosmetics or an adhesive,
The resin tube 1 is formed of a flexible synthetic resin, and a neck portion 2a having a spout (not shown) at one end of the tube body 2 of the resin tube 1, the neck portion 2a and the tube body. A shoulder portion 2b that connects the two ends over the entire circumference is integrally formed with the tube body 2, and the neck portion 2a is formed.
A threaded cap 3 is detachably attached to the tube body 2, and a filling material (not shown) is filled in the tube body 2, and the other end of the tube body 2 is clamp-sealed by heat fusion. There is.

【０００３】次に、前記樹脂性チューブ１の充填物充填
方法及びクランプシールの方法を説明すると、先ず、図
６に示す如く、前記樹脂性チューブ１にキャップ３を取
付けて前記注出口を閉じると共に、該キャップ３側を下
方にして該樹脂性チューブ１を上下逆方向に保持し、前
記チューブ本体２の上端部２ｃを開口させ、充填物Ｆを
充填するための充填ノズル４を該上端部２ｃ内に挿入
し、該チューブ本体２内に充填物Ｆを充填する。Next, a method of filling the resin tube 1 with a filler and a method of clamp sealing will be described. First, as shown in FIG. 6, a cap 3 is attached to the resin tube 1 to close the spout. The resin tube 1 is held upside down with the cap 3 side facing downward, the upper end 2c of the tube body 2 is opened, and the filling nozzle 4 for filling the filling material F is provided with the upper end 2c. Then, the filling material F is filled in the tube body 2.

【０００４】次に、図７に示す如く、前記樹脂性チュー
ブ１をシール部加熱装置５内に搬入し、該樹脂性チュー
ブ１のクランプシール部となる上端部２ｃの開口内に、
該シール部加熱装置５に設けられた熱風ノズル６先端部
を所定長さ挿入させる。ここで、該シール部加熱装置５
について説明すると、該シール部加熱装置５に設けられ
た熱風ノズル６は先端部外周に熱風を放射方向に噴出す
る単純多孔ノズル式の複数の噴出孔６ａ，６ａ…が形成
されており、該熱風ノズル６は熱源を備えた熱風発生器
（図示せず）に接続されている。尚、前記単純多孔ノズ
ル式の噴出孔６ａに代えて、単純隙間ノズル式（スリッ
ト式）噴出孔を用いる方法も知られている。Next, as shown in FIG. 7, the resinous tube 1 is carried into the seal portion heating device 5, and is inserted into the opening of the upper end portion 2c which serves as a clamp seal portion of the resinous tube 1.
The tip portion of the hot air nozzle 6 provided in the seal heating device 5 is inserted by a predetermined length. Here, the seal heating device 5
The hot air nozzle 6 provided in the seal part heating device 5 is formed with a plurality of ejection holes 6a, 6a ... Of a simple porous nozzle for ejecting hot air in the radial direction on the outer periphery of the tip part. The nozzle 6 is connected to a hot air generator (not shown) having a heat source. A method of using a simple gap nozzle type (slit type) ejection hole instead of the simple porous nozzle type ejection hole 6a is also known.

【０００５】又、前記熱風ノズル６は所定間隔を有して
排気管７に囲繞されており、該排気管７は下流側（図に
於て上部側）が排気を吸引するためのブロアー（図示せ
ず）に接続され、該排気管７の下端部は前記熱風ノズル
６の先端部よりもやや下方に延設され、該下端部には中
央部に開口部７ａを備えた内向きフランジ７ｂが形成さ
れ、該開口部７ａは前記チューブ本体２の上端部２ｃの
開口状態に於ける外径よりもやや大径に形成されてい
る。Further, the hot air nozzle 6 is surrounded by an exhaust pipe 7 with a predetermined interval, and the exhaust pipe 7 has a blower for sucking exhaust gas on the downstream side (upper side in the figure). (Not shown), the lower end of the exhaust pipe 7 extends slightly below the tip of the hot air nozzle 6, and the lower end is provided with an inward flange 7b having an opening 7a in the center. The opening 7a is formed to have a diameter slightly larger than the outer diameter of the upper end 2c of the tube body 2 in the opened state.

【０００６】而して、前記熱風発生器から導入された熱
風は前記熱風ノズル６内に流入し、該熱風ノズル６に設
けられた噴出孔６ａ，６ａ…から噴出した熱風が前記チ
ューブ本体２の上端部２ｃ内周部を加熱した後、高熱排
気として前記排気管７内に流出し、該高熱排気は該排気
管７の下流側に設置されたブロアーによって吸引されて
該排気管７の下流側に排出される。Thus, the hot air introduced from the hot air generator flows into the hot air nozzle 6, and the hot air ejected from the ejection holes 6a, 6a ... After heating the inner peripheral portion of the upper end portion 2c, it flows out into the exhaust pipe 7 as high-heat exhaust gas, and the high-heat exhaust gas is sucked by a blower installed on the downstream side of the exhaust pipe 7 and then on the downstream side of the exhaust pipe 7. Is discharged to.

【０００７】前記チューブ本体２の上端部２ｃが所定温
度に加熱されて軟化溶融されると、該樹脂性チューブ１
は前記シール部加熱装置５から取り外され、図８に示す
シールクランプ装置８内に搬入され、該シールクランプ
装置８のクランプ部８ａによって前記チューブ本体２の
軟化溶融された上端部２ｃがクランプされて融着しシー
ルされる。When the upper end 2c of the tube body 2 is heated to a predetermined temperature and softened and melted, the resin tube 1
Is removed from the seal part heating device 5 and carried into the seal clamp device 8 shown in FIG. 8, and the softened and melted upper end part 2c of the tube body 2 is clamped by the clamp part 8a of the seal clamp device 8. It is fused and sealed.

【０００８】然しながら、前述した前記シール部加熱装
置５は熱風を噴射する熱風ノズル６に単純多孔ノズル式
の噴出孔６ａが用いられており、該単純多孔ノズル式の
噴出孔６ａ、或いは、前記単純隙間ノズル式（スリット
式）噴出孔を用いた場合に、熱風の噴出にムラがあり、
又、該熱風は前記樹脂製チューブ１のシール部となる上
端部２ｃ内周部を上方に単純通過するため、図９に示す
前記樹脂性チューブ１のシール部となる上端部２ｃに部
分的に加熱不足部、過熱部が発生して、該上端部２ｃが
均一に過熱されず、図１０に示す如く、前記樹脂性チュ
ーブ１の外観不良や、膨れＳが発生したり、シール不足
が発生しパンクの発生の虞がある。However, in the above-mentioned seal portion heating device 5, the jet hole 6a of the simple porous nozzle type is used for the hot air nozzle 6 for jetting hot air, and the jet hole 6a of the simple porous nozzle type or the simple hole is used. When using a gap nozzle type (slit type) ejection hole, there is unevenness in the ejection of hot air,
Further, since the hot air simply passes through the inner peripheral portion of the upper end portion 2c, which serves as the sealing portion of the resin tube 1, upwardly, the hot air is partially applied to the upper end portion 2c serving as the sealing portion of the resinous tube 1 shown in FIG. Due to insufficient heating and overheating, the upper end 2c is not uniformly overheated, and as shown in FIG. 10, the resin tube 1 has a poor appearance, swelling S, and insufficient sealing. There is a risk of punctures.

【０００９】更に、実際の製作工程に於ては、前記樹脂
製チューブ１の肉厚のばらつきや、前記熱風ノズル６の
製作上のばらつきの発生の虞もあり、これらによって
も、前記樹脂性チューブ１の外観不良や、膨れＳの発
生、シール不足によるパンクの発生の虞がある。Further, in the actual manufacturing process, there is a possibility that the thickness of the resin tube 1 may be varied and the hot air nozzle 6 may be varied in production. 1 may cause poor appearance, swelling S, and puncture due to insufficient seal.

【００１０】そこで、樹脂性チューブのシール部となる
端部内周部を均一に加熱して、シール部の外観不良や、
シール不足によるパンクの発生のない、良好なシールを
得るために解決すべき技術的課題が生じてくるのであ
り、本発明はこの課題を解決することを目的とする。Therefore, the inner peripheral portion of the end of the resin tube, which serves as the seal portion, is uniformly heated to cause a defective appearance of the seal portion,
A technical problem to be solved in order to obtain a good seal in which puncture does not occur due to insufficient seal occurs, and an object of the present invention is to solve this problem.

【００１１】[0011]

【課題を解決するための手段】本発明は上記目的を達成
するために提案されたものであり、ノズルから熱風を噴
出して樹脂性チューブのクランプシール部となる端部内
周部を加熱するように構成されて成る樹脂性チューブの
シール部加熱装置に於て、前記ノズルから熱風を放射方
向に、且つ、渦巻状に噴出する樹脂性チューブのシール
部加熱方法、及び、上記ノズルは熱風の噴出口近傍に螺
旋状溝、及び／又は、渦巻状溝を備え、該螺旋状溝、及
び／又は、渦巻状溝によって、熱風を前記噴出口から放
射方向に、且つ、渦巻状に噴出する渦巻き発生ノズルで
ある樹脂性チューブのシール部加熱方法、並びに、上記
ノズルは熱風の噴出口近傍に螺旋状孔、及び／又は、渦
巻状孔を備え、該螺旋状孔、及び／又は、渦巻状孔によ
って、熱風を前記噴出口から放射方向に、且つ、渦巻状
に噴出する渦巻き発生ノズルである樹脂性チューブのシ
ール部加熱方法を提供するものである。DISCLOSURE OF THE INVENTION The present invention has been proposed in order to achieve the above object, and hot air is jetted from a nozzle to heat an inner peripheral portion of an end of a resin tube, which is a clamp seal portion. In a resin tube seal part heating device configured as described above, a method for heating a resin tube seal part in which hot air is jetted in a spiral direction in a radial direction from the nozzle, and the nozzle sprays hot air. A spiral groove and / or a spiral groove is provided in the vicinity of the outlet, and the spiral groove and / or the spiral groove ejects hot air radially and spirally from the ejection port. A method for heating a seal portion of a resin tube which is a nozzle, and the nozzle includes a spiral hole and / or a spiral hole in the vicinity of a jet of hot air, and the spiral hole and / or the spiral hole , The hot air Radially from the outlet, and is intended to provide a seal heating method for resinous tube is spiral generating nozzle for jetting spirally.

【００１２】[0012]

【発明の実施の形態】以下、本発明の一実施の形態を図
１乃至図４に従って詳述する。尚、説明の都合上、従来
例と同一構成部分については同一符号を付してその説明
を省略する。図１に於て、９は樹脂性チューブ１のシー
ル部加熱装置であり、該シール部加熱装置９はノズル１
０を備え、該ノズル１０は熱風発生器１１に接続され、
該熱風発生器１１から熱風が導入されるように構成さ
れ、該ノズル１０先端部は樹脂性チューブ１の上端部２
ｃの開口部よりもやや小径に形成され、該先端部外周の
所定位置に噴出孔１２が形成されている。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to FIGS. For convenience of description, the same components as those of the conventional example will be designated by the same reference numerals and the description thereof will be omitted. In FIG. 1, reference numeral 9 is a seal portion heating device for the resin tube 1, and the seal portion heating device 9 is a nozzle 1
0, the nozzle 10 is connected to a hot air generator 11,
Hot air is introduced from the hot air generator 11, and the tip of the nozzle 10 is the upper end 2 of the resin tube 1.
The diameter is formed to be slightly smaller than the opening portion of c, and the ejection hole 12 is formed at a predetermined position on the outer circumference of the tip portion.

【００１３】又、前記ノズル１０の外側には所定間隙を
有して該ノズル１０を囲繞する排気管１３が設けられ、
該ノズル１０と該排気管１３間の間隙が排気孔１４とな
っている。更に、図２に示す如く、該排気管１４の下端
部外側には所定間隙を有して該排気管１４を囲繞する外
筒１５が設けられ、該外筒１５と該排気管１３との間隙
がエアーの導入孔１６となっている。An exhaust pipe 13 surrounding the nozzle 10 is provided outside the nozzle 10 with a predetermined gap.
A gap between the nozzle 10 and the exhaust pipe 13 serves as an exhaust hole 14. Further, as shown in FIG. 2, an outer cylinder 15 surrounding the exhaust pipe 14 is provided outside the lower end portion of the exhaust pipe 14 with a predetermined gap, and a gap between the outer cylinder 15 and the exhaust pipe 13 is provided. Is an air introduction hole 16.

【００１４】又、該外筒１５の上端部は前記排気管１３
の外周部に固着されて閉口しており、該外筒１５の下端
部は該排気管１３の下端部よりも下方に延設され、且
つ、該下端部に内向きフランジ１７が形成され、該内向
きフランジ１７中央開口部に両端開放の内筒１８が固着
され、該内筒１８上部は前記排気管１３下端部内に所定
長さ遊挿されている。Further, the upper end portion of the outer cylinder 15 has the exhaust pipe 13
Is fixed to the outer peripheral portion of the exhaust pipe 13 and is closed, the lower end of the outer cylinder 15 extends below the lower end of the exhaust pipe 13, and an inward flange 17 is formed at the lower end. An inner cylinder 18 whose both ends are open is fixed to a central opening of the inward flange 17, and an upper part of the inner cylinder 18 is loosely inserted into the lower end of the exhaust pipe 13 by a predetermined length.

【００１５】そして、該内筒１８の内径は前記樹脂性チ
ューブ１のクランプシール部となる上端部２ｃの開口状
態に於ける外径よりもやや大径に形成されると共に、該
内筒１８外周部と前記排気管１３下端内周部とによって
噴出し孔１９が形成されており、該排気管１３の下端内
周部が斜欠されて該噴出し孔１９は噴出し方向に絞込み
大に形成されている。The inner diameter of the inner cylinder 18 is formed to be slightly larger than the outer diameter of the upper end portion 2c which is the clamp seal portion of the resin tube 1 in the open state, and the outer circumference of the inner cylinder 18 is increased. Portion and the inner peripheral portion of the lower end of the exhaust pipe 13 form an ejection hole 19, and the inner peripheral portion of the lower end of the exhaust pipe 13 is obliquely formed so that the ejection hole 19 is narrowed in the ejection direction to form a large size. Has been done.

【００１６】更に、前記外筒１５は外周部の所定個所が
開穿されて導入管２０に連結され、該導入管２０は高圧
ブロアー（図示せず）に接続されている。尚、同図に於
て、２１は樹脂製チューブ１の心出し治具であり、２２
は該心出し治具２１を作動させる作動シリンダー、２３
は樹脂製チューブ１のホルダーである。Further, the outer cylinder 15 is connected to an introduction pipe 20 by opening a predetermined portion of the outer peripheral portion thereof, and the introduction pipe 20 is connected to a high pressure blower (not shown). In the figure, 21 is a centering jig for the resin tube 1,
Is an operating cylinder for operating the centering jig 21, 23
Is a holder for the resin tube 1.

【００１７】而して、上下逆方向に保持され、充填物Ｆ
が充填された樹脂性チューブ１の上端部２ｃ開口内に、
前記シール部加熱装置９の前記ノズル１０先端部が上方
から所定長さ挿入された後、前記熱風発生器から熱風が
吐出されて前記ノズル１０に送られると、該ノズル１０
に形成された前記噴出口１２から熱風が噴出され、前記
樹脂性チューブ１の上端部２ｃ内周部を加熱した後、高
熱排気として前記排気孔１４内に流入する。Thus, the filler F, which is held upside down,
In the opening of the upper end 2c of the resin tube 1 filled with
After the tip of the nozzle 10 of the seal heating device 9 is inserted from above by a predetermined length, hot air is discharged from the hot air generator and sent to the nozzle 10.
Hot air is ejected from the ejection port 12 formed in the above, heats the inner peripheral portion of the upper end 2c of the resinous tube 1, and then flows into the exhaust hole 14 as high-heat exhaust.

【００１８】一方、前記高圧ブロアーから送られた高圧
風が前記導入管２０を介して前記導入孔１６内に流入し
た後、絞込み大に形成された前記噴出し孔１９によって
絞られ、高速風となって前記排気孔１４内に噴出し、該
高速風が該排気孔１４内の前記高熱排気と混合して該高
熱排気を急冷すると共に、該高熱排気を高速で該排気孔
１４の下流側に排出する。On the other hand, the high-pressure air sent from the high-pressure blower flows into the introduction hole 16 through the introduction pipe 20, and is then narrowed down by the blow-out hole 19 which is formed in a narrowed-down state to generate high-speed air. Then, the high-speed air mixes with the high-heat exhaust in the exhaust hole 14 to rapidly cool the high-heat exhaust, and the high-heat exhaust is rapidly discharged to the downstream side of the exhaust hole 14. Discharge.

【００１９】次に、前記シール部加熱装置９の前記ノズ
ル１０の先端部を、更に、詳細に説明すると、前記ノズ
ル１０先端部は外筒部２４と、該外筒部２４内に上部が
挿入され、下端部が該外筒部２４の下端下方に垂設する
ように取り付けられるノズル部材２５とから構成されて
いる。Next, the tip end portion of the nozzle 10 of the seal heating device 9 will be described in more detail. The tip end portion of the nozzle 10 is an outer cylinder portion 24, and an upper portion is inserted into the outer cylinder portion 24. The nozzle member 25 is attached so that the lower end portion thereof is vertically provided below the lower end portion of the outer tubular portion 24.

【００２０】該ノズル部材２５は図３に示す如く、中心
部の軸体２６が円柱状に形成され、該軸体２６の下端部
に円板状の先端部材２７が固着され、該先端部材２７は
該先端部材２７の上面の前記軸体２６固着部の外側に熱
風連通孔となる環状溝２８が形成され、該環状溝２８の
外側に複数の渦巻状溝２９，２９…が断面視波形形状に
形成され、且つ、該渦巻状溝２９，２９…は中心部より
も外周部が高くなるようにやや傾斜して形成されてい
る。As shown in FIG. 3, in the nozzle member 25, a central shaft member 26 is formed in a cylindrical shape, and a disk-shaped tip member 27 is fixed to the lower end portion of the shaft member 26. An annular groove 28 serving as a hot air communication hole is formed on the upper surface of the tip member 27 on the outer side of the shaft 26 fixing portion, and a plurality of spiral grooves 29, 29 ... , And the spiral grooves 29, 29 ... Are formed with a slight inclination so that the outer peripheral portion is higher than the central portion.

【００２１】又、前記軸体２６の外周面には２条の螺旋
リブ３０，３０が設けられて螺旋状溝３１，３１が形成
されている。更に、前記軸体２６の上部には円板状の上
板３２が設けられ、該上板３２には熱風を下方向に流通
させる多数の孔３３，３３…が開穿されている。Further, two spiral ribs 30, 30 are provided on the outer peripheral surface of the shaft body 26 to form spiral grooves 31, 31. Further, a disc-shaped upper plate 32 is provided on the upper part of the shaft body 26, and a large number of holes 33, 33 ... Which allow the hot air to flow downward are formed in the upper plate 32.

【００２２】従って、前記上板３２の孔３３，３３…か
ら進入した熱風は前記螺旋状溝３１，３１によって、螺
旋方向に回転力を付与されて下方に送られ、図４（ａ）
に示す如く、前記環状溝２８内で回転しながら、前記渦
巻状溝２９，２９…に送られ、該渦巻状溝２９，２９…
によって、放射状に、且つ、渦巻き状に噴出される。Therefore, the hot air that has entered through the holes 33, 33 ... Of the upper plate 32 is given a rotational force in the spiral direction by the spiral grooves 31, 31 and is sent downward, as shown in FIG.
As shown in FIG. 4, while being rotated in the annular groove 28, the spiral groove 29 is fed to the spiral grooves 29, 29 ...
Are ejected radially and spirally.

【００２３】図４（ｂ）は前記ノズル１０の前記噴出口
１２から噴出される熱風の噴出状態を示し、前記渦巻状
溝２９，２９…が形成された前記先端部材２８の上面外
周端は波形に形成され、該上面外周端に対応する前記外
筒部２４の下端部も該先端部材２８の上面外周端と所定
間隔離間する波形形状に形成されており、この離間する
所定間隔が前記噴出孔１２となっており、前記熱風は該
噴出孔１２から放射方向、且つ、螺旋方向に吹き上げら
れて前記樹脂性チューブ１の上端部２ｃ内周面に噴射さ
れる。FIG. 4 (b) shows a jetting state of hot air jetted from the jet outlet 12 of the nozzle 10, in which the upper end outer peripheral edge of the tip member 28 in which the spiral grooves 29, 29 ... Are formed is corrugated. And the lower end of the outer cylindrical portion 24 corresponding to the outer peripheral edge of the upper surface is also formed in a corrugated shape that is spaced apart from the outer peripheral edge of the upper surface of the tip member 28 by a predetermined distance. 12, the hot air is blown up in the radial direction and the spiral direction from the ejection holes 12 and is jetted to the inner peripheral surface of the upper end portion 2c of the resinous tube 1.

【００２４】これによって、熱風は従来例の如く、該樹
脂製チューブ１の上端部２ｃ内周面を上方に単純通過す
ることなく、該上端部２ｃ内周面を回転するため、熱風
が該上端部２ｃ内周面に長時間留まることとなり、該上
端部２ｃ内周面を均一に加熱することができ、更に、実
際の製作工程に於ける樹脂製チューブの肉厚のばらつき
や、前記熱風ノズルの製作上のばらつきをも吸収する均
一な加熱を行うことができる。これによって、良好なシ
ールを得ることができ、従来例の加熱ムラ等による樹脂
性チューブの外観不良や、膨れの発生、シール不足によ
るパンクの発生等を防止することが可能になる。As a result, unlike the conventional example, the hot air does not simply pass upward through the inner peripheral surface of the upper end portion 2c of the resin tube 1, but rotates around the inner peripheral surface of the upper end portion 2c, so that the hot air flows through the upper end portion 2c. Since it stays on the inner peripheral surface of the portion 2c for a long time, the inner peripheral surface of the upper end portion 2c can be heated uniformly, and further, the variation in the wall thickness of the resin tube in the actual manufacturing process and the hot air nozzle It is possible to perform uniform heating that absorbs variations in manufacturing. As a result, a good seal can be obtained, and it is possible to prevent a defective appearance of the resin tube due to uneven heating of the conventional example, occurrence of swelling, and occurrence of puncture due to insufficient sealing.

【００２５】又、図示は省略するが、前記渦巻状溝２
９、及び／又は、前記螺旋状溝３１に代えて、渦巻状
孔、及び／又は、螺旋状孔を用いることも可能であり、
然るときも、前記渦巻状溝２９、及び／又は、前記螺旋
状溝３１と同様な効果が期待でき、更に、傾斜溝、或い
は、傾斜孔を用いても略同様な効果が期待できる。そし
て、前述の渦巻状溝、螺旋状溝、螺旋状孔、螺旋状孔、
傾斜溝、及び、傾斜孔を選択的に組み合わせて用いるこ
とも可能である。Although not shown, the spiral groove 2 is also provided.
It is also possible to use a spiral hole and / or a spiral hole instead of 9 and / or the spiral groove 31.
Even in such a case, the same effect as that of the spiral groove 29 and / or the spiral groove 31 can be expected, and substantially the same effect can be expected by using the inclined groove or the inclined hole. Then, the above-mentioned spiral groove, spiral groove, spiral hole, spiral hole,
It is also possible to use the inclined groove and the inclined hole selectively in combination.

【００２６】尚、本発明は、本発明の精神を逸脱しない
限り種々の改変を為すことができ、そして、本発明が該
改変されたものに及ぶことは当然である。The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified one.

【００２７】[0027]

【発明の効果】本発明は上記一実施の形態に詳述したよ
うに、ノズルから熱風を噴出して樹脂性チューブのクラ
ンプシール部となる端部内周部を加熱するように構成さ
れて成る樹脂性チューブのシール部加熱装置に於て、前
記ノズルから熱風を放射方向に、且つ、渦巻状に噴出す
るから、熱風は従来例の如く、樹脂性チューブのクラン
プシール部となる端部内周面を上方に単純通過すること
なく、該端部内周面を回転するため、熱風が該端部内周
面に長時間留まることとなり、該端部内周面を均一に加
熱することができ、更に、実際の製作上の樹脂製チュー
ブの肉厚のばらつきや、前記熱風ノズルの製作上のばら
つきをも吸収する均一な加熱を行うことができる。これ
によって、良好なシールを得ることができ、樹脂性チュ
ーブの外観不良や、膨れの発生、シール不足によるパン
クの発生等を防止することが可能となる。As described in detail in the above-mentioned one embodiment, the present invention is configured so that hot air is jetted from the nozzle to heat the inner peripheral portion of the end of the resinous tube which serves as the clamp seal portion. In the heating device for the seal portion of the flexible tube, the hot air is ejected in a radial direction and in a spiral shape from the nozzle, so that the hot air is blown on the inner peripheral surface of the end that is the clamp seal portion of the resin tube as in the conventional example. Since the inner peripheral surface of the end is rotated without simply passing upward, hot air stays on the inner peripheral surface of the end for a long time, and the inner peripheral surface of the end can be uniformly heated. It is possible to perform uniform heating that absorbs variations in the wall thickness of the resin tube in manufacturing and variations in manufacturing the hot air nozzle. As a result, a good seal can be obtained, and it is possible to prevent the appearance of the resinous tube from developing, the occurrence of swelling, and the occurrence of puncture due to insufficient sealing.

【００２８】又、請求項２記載の発明は上記ノズルは熱
風の噴出口近傍に螺旋状溝、及び／又は、渦巻状溝を備
え、該螺旋状溝、及び／又は、渦巻状溝によって、熱風
を前記噴出口から放射方向に、且つ、渦巻状に噴出する
渦巻き発生ノズルであるので、請求項１記載の発明の効
果に加え、前記螺旋状溝、及び／又は、渦巻状溝によっ
て、熱風を放射方向に、且つ、渦巻状に噴出させること
が可能になる。Further, in the invention according to claim 2, the nozzle is provided with a spiral groove and / or a spiral groove in the vicinity of the jet outlet of the hot air, and the hot air is provided by the spiral groove and / or the spiral groove. Is a swirl generating nozzle that spouts in a spiral shape in a radial direction from the jet port, and in addition to the effect of the invention of claim 1, hot air is generated by the spiral groove and / or the spiral groove. It becomes possible to eject in a radial direction and in a spiral shape.

【００２９】更に、請求項３記載の発明は上記ノズルは
熱風の噴出口近傍に螺旋状孔、及び／又は、渦巻状孔を
備え、該螺旋状孔、及び／又は、渦巻状孔によって、熱
風を前記噴出口から放射方向に、且つ、渦巻状に噴出す
る渦巻き発生ノズルであるので、請求項２記載の発明の
効果と同様の効果が期待できる等、正に著大なる効果を
奏する発明である。Further, in the invention according to claim 3, the nozzle is provided with a spiral hole and / or a spiral hole in the vicinity of the jet outlet of the hot air, and the hot air is provided by the spiral hole and / or the spiral hole. Since it is a swirl generating nozzle that ejects in a spiral shape in a radial direction from the jet outlet, it is possible to expect the same effect as the effect of the invention according to claim 2, and is an invention that exhibits a truly significant effect. is there.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施の形態を示し、樹脂性チューブ
のシール部加熱装置の一部切欠縦断面図。FIG. 1 is a partially cutaway vertical sectional view of a heating device for a seal portion of a resin tube, showing an embodiment of the present invention.

【図２】本発明の一実施の形態を示し、樹脂性チューブ
のシール部加熱装置の詳細一部切欠縦断面図。FIG. 2 is a detailed partially cutaway vertical cross-sectional view of the heating device for the seal portion of the resin tube, showing the embodiment of the present invention.

【図３】図１のノズル部材の斜視図。FIG. 3 is a perspective view of the nozzle member of FIG.

【図４】（ａ）図３のノズル部材の環状溝及び渦巻状溝
による熱風の流れを示す説明図。 （ｂ）図２の噴出口から噴出する熱風の噴出方向を示す
説明図。4 (a) is an explanatory view showing the flow of hot air by the annular groove and the spiral groove of the nozzle member of FIG. (B) Explanatory drawing which shows the ejection direction of the hot air ejected from the ejection port of FIG.

【図５】従来例を示し、完成した樹脂製チューブの正面
図。FIG. 5 is a front view of a completed resin tube showing a conventional example.

【図６】従来例を示し、樹脂製チューブの充填状態を示
す、一部切欠縦断面図。FIG. 6 is a partially cutaway vertical sectional view showing a conventional example and showing a filled state of a resin tube.

【図７】従来例を示し、樹脂製チューブのシール部加熱
装置の一部切欠縦断面図。FIG. 7 is a partially cutaway vertical sectional view of a resin tube seal part heating device showing a conventional example.

【図８】従来例を示し、樹脂性チューブのクランプシー
ル状態を示す一部切欠縦断面図。FIG. 8 is a partially cutaway vertical sectional view showing a conventional example and showing a clamp seal state of a resin tube.

【図９】従来例を示し、樹脂性チューブのシール部加熱
後の一部切欠縦断面図。FIG. 9 is a partially cutaway vertical sectional view showing a conventional example after heating a seal portion of a resin tube.

【図１０】従来例を示し、樹脂性チューブのクランプシ
ール後の正面図。FIG. 10 is a front view showing a conventional example after clamp sealing of a resin tube.

【符号の説明】[Explanation of symbols]

１ 樹脂性チューブ ９ シール部加熱装置 １０ ノズル ２９ 渦巻状溝 ３１ 螺旋状溝 1 Resin tube 9 Seal part heating device 10 nozzles 29 spiral groove 31 spiral groove

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 ノズルから熱風を噴出して樹脂性チュー
ブのクランプシール部となる端部内周部を加熱するよう
に構成されて成る樹脂性チューブのシール部加熱装置に
於て、前記ノズルから熱風を放射方向に、且つ、渦巻状
に噴出することを特徴とする樹脂性チューブのシール部
加熱方法。1. A seal heating device for a resin tube, which is configured to eject hot air from a nozzle to heat an inner peripheral portion of an end of the resin tube that serves as a clamp seal portion. A method for heating a seal portion of a resin tube, characterized in that the resin is jetted in a spiral shape in a radial direction. 【請求項２】 上記ノズルは熱風の噴出口近傍に螺旋状
溝、及び／又は、渦巻状溝を備え、該螺旋状溝、及び／
又は、渦巻状溝によって、熱風を前記噴出口から放射方
向に、且つ、渦巻状に噴出する渦巻き発生ノズルである
ことを特徴とする請求項１記載の樹脂性チューブのシー
ル部加熱方法。2. The nozzle is provided with a spiral groove and / or a spiral groove in the vicinity of a jet of hot air, and the spiral groove and / or
Alternatively, the method for heating a seal portion of a resin tube according to claim 1, wherein the swirl generating nozzle ejects hot air in a spiral shape in a radial direction from the ejection port by means of a spiral groove. 【請求項３】 上記ノズルは熱風の噴出口近傍に螺旋状
孔、及び／又は、渦巻状孔を備え、該螺旋状孔、及び／
又は、渦巻状孔によって、熱風を前記噴出口から放射方
向に、且つ、渦巻状に噴出する渦巻き発生ノズルである
ことを特徴とする請求項１記載の樹脂性チューブのシー
ル部加熱方法。3. The nozzle is provided with a spiral hole and / or a spiral hole in the vicinity of a hot air ejection port, and the spiral hole and / or
Alternatively, the method for heating a seal portion of a resin tube according to claim 1, wherein the swirl generating nozzle ejects hot air in a spiral shape in a radial direction from the ejection port by means of a spiral hole.
JP2002042219A 2002-02-19 2002-02-19 Method for heating sealing part of resin tube Pending JP2003237718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002042219A JP2003237718A (en) 2002-02-19 2002-02-19 Method for heating sealing part of resin tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002042219A JP2003237718A (en) 2002-02-19 2002-02-19 Method for heating sealing part of resin tube

Publications (1)

Publication Number Publication Date
JP2003237718A true JP2003237718A (en) 2003-08-27

Family

ID=27782403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002042219A Pending JP2003237718A (en) 2002-02-19 2002-02-19 Method for heating sealing part of resin tube

Country Status (1)

Country Link
JP (1) JP2003237718A (en)

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