JP3422061B2 - Hot melt tube welding equipment - Google Patents

Hot melt tube welding equipment

Info

Publication number
JP3422061B2
JP3422061B2 JP34956393A JP34956393A JP3422061B2 JP 3422061 B2 JP3422061 B2 JP 3422061B2 JP 34956393 A JP34956393 A JP 34956393A JP 34956393 A JP34956393 A JP 34956393A JP 3422061 B2 JP3422061 B2 JP 3422061B2
Authority
JP
Japan
Prior art keywords
tube
holder
heating element
movable lever
cooling
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 - Fee Related
Application number
JP34956393A
Other languages
Japanese (ja)
Other versions
JPH07195526A (en
Inventor
有理子 奈良
準 二川
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.)
Nipro Corp
Original Assignee
Nipro Corp
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 Nipro Corp filed Critical Nipro Corp
Priority to JP34956393A priority Critical patent/JP3422061B2/en
Publication of JPH07195526A publication Critical patent/JPH07195526A/en
Application granted granted Critical
Publication of JP3422061B2 publication Critical patent/JP3422061B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B29C66/861—Hand-held tools
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • 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
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/8227—Transmission mechanisms using springs
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C66/70—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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/857—Medical tube welding 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B29L2023/007—Medical tubes other than catheters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 【０００１】 【産業上の利用分野】本発明は熱溶融性チューブの溶着
装置に係わり、更に、詳しくは、合成樹脂等の熱溶融性
材料から成るチューブ、例えば、ポリ塩化ビニル製チュ
ーブやポリエチレン製チューブ等の熱溶融性チューブを
溶着する装置に関する。 【０００２】 【従来の技術】血液バッグ、ガス透過性細胞培養バッグ
等には、合成樹脂製チューブが接続されており、該チュ
ーブを利用して、バッグ内への血液や細胞浮遊液の注入
作業や、バッグの内容物の入れ換え作業等が行われる。
ところで、上記注入作業や入れ換え作業の後には、チュ
ーブの一部をシールして、バッグの内容物が流出した
り、バッグ内に外気が侵入して、バッグ内が細菌等で汚
染されるのを防止する必要がある。 【０００３】上記合成樹脂製チューブをシールするため
に、高周波誘電加熱式の溶着装置が一般的に使用されて
おり、このような装置としては、例えば、実公昭５４−
４３１０１号公報に示すものがある。このものでは、１
対の電極により、チューブを挟持し、両電極間に高周波
電流を流すことで、両電極間のチューブを誘電体損失に
より発熱させ、軟化溶融したチューブを電極間で押し潰
すことで、チューブ内面の上下に対向する部分を溶着さ
せるようにしている。 【０００４】 【発明が解決しようとする課題】然しながら、上記従来
の溶着装置は高周波誘電加熱式であるため、チューブの
構成材料が、誘電性のある材料（例えば、ポリ塩化ビニ
ル、エチレン酢酸ビニル共重合体等）でないと、チュー
ブを溶着できないという問題があった。 【０００５】又、上記従来の溶着装置は、大型で複雑な
高周波発振回路、電源回路を内有しているため、大型と
なり、実験台やクリーンベンチ内での使用時に、場所を
取ると共に、高価であるという問題もあった。 【０００６】本発明は、上記問題を解決できる熱溶融性
チューブの溶着装置を提供することを目的とする。 【０００７】 【課題を解決するための手段】上記目的を達成するため
に、本発明の特徴とするところは、本体に可動レバーが
上下方向に揺動自在に備えられて、本体と可動レバーの
対向部分に、上下一対の発熱体が備えられると共に、本
体と可動レバーにおける、発熱体とは別個の対向部分
に、上下一対の冷却体が備えられ、本体に、チューブを
保持するホルダーが移動自在に備えられて、ホルダー
が、ホルダーに保持されたチューブが両発熱体間に位置
する加熱位置と、ホルダーに保持されたチューブが両冷
却体間に位置する冷却位置とに位置変更自在とされ、上
側発熱体の下面に、チューブの上側発熱体への焼き付き
を防止する上側緩衝膜が備えられ、ホルダーに、ホルダ
ーに保持されたチューブを受け且つチューブの下側発熱
体への焼き付きを防止する下側緩衝膜が備えられた点に
ある。 【０００８】 【作用】熱溶融性チューブの溶着時には、ホルダーの移
動操作により、チューブを両発熱体間に位置させた後、
可動レバーを下方に揺動させ、両発熱体により、チュー
ブを挟持して、加熱し、チューブを軟化溶融させる。 【０００９】次に、可動レバーを上方に揺動させた後、
ホルダーの移動操作により、チューブを両冷却体間に位
置させる。この場合において、上側発熱体の下面に上側
緩衝膜が備えられ、ホルダーに、ホルダーに保持された
チューブを受ける下側緩衝膜が備えられているので、可
動レバーの上方への揺動時やホルダーの移動時に、チュ
ーブが各発熱体に焼き付いて、各発熱体に引っ張られる
ことはない。 【００１０】その後、可動レバーを下方に再度揺動さ
せ、両冷却体により、チューブを挟持、押圧して、押し
潰すと共に、冷却固化させて、チューブ内面の上下に対
向する部分を溶着する。 【００１１】 【実施例】以下、本発明の一実施例を図面に基づき説明
すると、熱溶融性チューブの溶着装置は、熱板溶着式で
あって、卓上タイプとされている。溶着装置は、本体１
と、可動レバー２と、上下一対宛の発熱体３，４及び冷
却体５，６と、ホルダー７と、上下一対の緩衝膜８，９
等を有する。 【００１２】本体１は、正面視Ｌ型状とされており、本
体１の左側部を構成し且つ高さが高くされた突出部１０
と、本体１の左右方向中央部と右側部を構成し且つ突出
部１０より高さが低くされた台部１１とから成る。突出
部１０には、電源とコード１２を介して接続される電気
回路（図示省略）、電源スイッチ１３、ランプ１４、ブ
ザー（図示省略）等が備えられている。この他に、発熱
体３，４の温度調整機能、発熱体３，４への通電時間を
設定するための通電時間設定機能が備えられているが、
図示していない。尚、設定した通電時間が経過すると、
ランプ１４が点灯すると共に、ブザーが報知するように
されている。台部１１の左側部には、ブラケット１７が
立設されている。 【００１３】可動レバー２の左側部はブラケット１７に
前後方向の支持軸１９により枢支されており、これによ
り、可動レバー２は上下方向に揺動自在とされている。
本体１の台部１１と可動レバー２の左側部間には、可動
レバー２を上方に付勢する板バネ２０が介装されてい
る。 【００１４】各発熱体３，４は、可動レバー２と本体１
の台部１１の対向部分における、左右方向（長手方向）
ほぼ中央部で且つ前後方向中央部に、配設されている。
上側発熱体３は可動レバー２から下方に突出し、下側発
熱体４は台部１１から上方に突出している。各発熱体
３，４は金属ブロック等から成ると共に、ニクロム線等
の電熱ヒーター２２，２３を内有し、各電熱ヒーター２
２，２３は本体１内の電気回路と接続されている。尚、
発熱体３，４の温度は、温度調整機能の操作により、１
００〜３００℃の範囲で設定可能とされている。 【００１５】各冷却体５，６は、可動レバー２と本体１
の台部１１の対向部分における、右側部で且つ前後方向
中央部に、配設されている。上側冷却体５は可動レバー
２から下方に突出し、下側冷却体６は台部１１から上方
に突出している。各冷却体５，６は、前後方向に面状を
呈する金属板から成る。又、各冷却体５，６は、各発熱
体３，４よりも低温とされるが、実施例では、加熱も冷
却もされていない。尚、各冷却体５，６を、加熱、又
は、冷却する場合もある。 【００１６】ホルダー７は、本体１の台部１１上に左右
方向に摺動自在に備えられるもので、金属板をプレス成
形して成る。ホルダー７の左側部は、二股状とされ且つ
下側発熱体４及び下側冷却体６を内有可能な二股部２５
とされると共に、その前後部には、左右方向に長孔状と
された前後一対のガイド溝２６と、上方に折り曲げられ
た前後一対の保持部２７が形成されている。各ガイド溝
２６には、台部１１に固定されたガイド軸２８が左右方
向に相対移動自在に挿通されている。各保持部２７に
は、右斜め上方に開口する保持孔２９が形成され、この
保持孔２９に熱溶融性チューブ３０が挿脱自在に挿入さ
れて、保持される。ホルダー７の右側端部には、ホルダ
ー７を摺動させるための撮み３１が上方に折り曲げられ
ている。ホルダー７は、左右方向の摺動により、図２、
図３及び図５に示すように、保持部２７に保持されたチ
ューブ３０が両発熱体３，４間に位置する加熱位置と、
図６及び図７に示すように、保持部２７に保持されたチ
ューブ３０が両冷却体５，６間に位置する冷却位置とに
位置変更自在とされている。尚、ホルダー７を加熱位置
に位置させた際には、各ガイド軸２８が各ガイド溝２６
の右端部と当接すると共に、二股部２５内周面の右端部
が下側冷却体６と当接し、又、ホルダー７を冷却位置に
位置させた際には、各ガイド軸２８が各ガイド溝２６の
左端部と当接するようにしてあり、これにより、ホルダ
ー７を容易に位置決めできる。 【００１７】各緩衝膜８，９は、チューブ３０の上側発
熱体３、又は、下側発熱体４への焼き付きを防止するも
ので、耐熱性に優れ、高い強度を有する材料から成る。
上記材料としては、通常のテフロンテープ、織り目が粗
いガラスクロスを基材としたテフロンテープ、シリコー
ンゴム等が使用される。上側緩衝膜８は上側発熱体３の
下面に全面にわたって接着されている。下側緩衝膜９
は、ホルダー７の両保持部２７の下面間に渡設されて、
両下面に接着されており、ホルダー７を加熱位置に位置
させた際には、下側緩衝膜９は下側発熱体４の上面をカ
バーし、ホルダー７を冷却位置に位置させた際には、下
側緩衝膜９は下側冷却体６の上面をカバーする。 【００１８】次に、熱溶融性チューブの溶着作業につい
て説明する。例えば、血液冷凍保存用の合成樹脂製バッ
グには、同一材質のチューブが接続されている。このチ
ューブにより、バッグ内へ血液を注入した後は、チュー
ブを、下記のように、溶着して、シールする。尚、上記
チューブは、合成樹脂製とされているが、その構成材料
は、誘電性のある材料でもよく、誘電性のない材料でも
よい。誘電性のある材料としては、例えば、ポリ塩化ビ
ニルが使用される。誘電性のない材料としては、例え
ば、ポリエチレン、ポリプロピレン、ポリエステル（例
えば、ポリエチレンテレフタレートやポリブチレンテレ
フタレート等）が使用される。 【００１９】まず、図４に示すように、ホルダー７の両
保持部２７に、熱溶融性チューブ３０を保持させると共
に、図２及び図３に示すように、ホルダー７を加熱位置
として、ホルダー７の下側緩衝膜９により、下側発熱体
４の上面をカバーする。 【００２０】又、チューブ３０及びホルダー７の上記セ
ット前、又は、セット後に、電源スイッチ１３をオン操
作すると共に、温度調整機能により、発熱体３，４の温
度を所定温度とする。尚、この場合には、通電時間設定
機能により、発熱体３，４への通電時間を設定する場合
と、設定しない場合がある。 【００２１】そして、図５に示すように、可動レバー２
を板バネ２０に抗して下方に押圧し、両発熱体３，４に
より、両緩衝膜８，９を介して、チューブ３０の両保持
部２７間を所定時間挟持して、加熱する。これにより、
発熱体３，４からの熱が、チューブ３０の外周部から内
周部へと伝播して、チューブ３０の両発熱体３，４間が
軟化溶融する。尚、発熱体３，４の好適な温度及び、挟
持時間は、チューブ３０の材質、内径、外径、肉厚によ
って異なる。 【００２２】 又、両発熱体３，４によりチューブ３０
を挟持した際には、両発熱体３，４間に適当な隙間が残
ることが必要である。適当な隙間がないと、チューブ３
０を加熱した際に、チューブ３０が破断し、又、隙間が
大きすぎると、チューブ３０の加熱、溶融不良の問題が
生じるからである。最適な隙間は、チューブ３０の肉厚
分以上で、肉厚分の２倍以内である。肉厚分とは、チュ
ーブ３０の外径と内径の差の１／２である。 【００２３】又、チューブ３０を加熱、溶融させた際に
は、チューブ３０の溶融部分は、下側緩衝膜９に保持、
固定された状態となる。尚、下側緩衝膜９として、織り
目が粗いガラスクロスを基材としたテフロンテープを使
用すると、チューブ３０の溶融した樹脂が織り目の隙間
に浸透して、張り付いた状態になるので、チューブ３０
を下側緩衝膜９により一層大きな固定力で固定できる。 【００２４】上記のように、チューブ３０を軟化溶融さ
せた後、可動レバー２の押圧を解除し、可動レバー２を
上方に揺動させて、原位置に復帰させる。この場合にお
いて、上側発熱体３の下面には、耐熱性に優れた上側緩
衝膜８が全面にわたって固着されているので、可動レバ
ー２を上方に揺動させた際に、チューブ３０が、上昇す
る上側発熱体３に焼き付いて、引っ張られることはな
い。従って、チューブ３０に無理な力が作用して、チュ
ーブ３０が溶融部分で切れたり、肉厚が薄くなったりす
ることはない。 【００２５】次に、図６に示すように、ホルダー７を右
側方へ摺動させて、冷却位置とする。この場合におい
て、ホルダー７の両保持部２７の下面間に、耐熱性に優
れた下側緩衝膜９が渡設されて、下側発熱体４とチュー
ブ３０間に位置しているので、チューブ３０が下側発熱
体４に焼き付き、下側発熱体４と摺動するホルダー７間
で引っ張られることはない。従って、チューブ３０に無
理な力が作用して、チューブ３０が溶融部分で切れた
り、肉厚が薄くなったりすることはない。 【００２６】特に、上記のように、ホルダー７に備えら
れた下側緩衝膜９上に、チューブ３０の溶融部分が保
持、固定されており、下側緩衝膜９が、チューブ３０の
溶融部分を受ける受け皿のような機能を果たすので、ホ
ルダー７の右側方への摺動時に、チューブ３０の溶融部
分は下側緩衝膜９と共にスムーズに移動する。従って、
チューブ３０に無理な力が作用することをより一層良好
に防止でき、チューブ３０の溶融部分での破断や、肉厚
が薄くなったりすることを更に良好に防止できる。 【００２７】 次に、図７に示すように、可動レバー２
を板バネ２０に抗して下方に押圧し、両冷却体５，６に
より、所定時間、チューブ３０を挟持、押圧して、押し
潰す。これにより、チューブ３０の溶融部分が冷却固化
されて、チューブ３０内面の上下に対向する部分が溶着
され、図８にも示すように、チューブ３０がシール３２
される。チューブ３０の溶着部分が冷却すれば、チュー
ブ３０の溶着部分を下側緩衝膜９から剥離する。 【００２８】尚、チューブの材質、内径、外径、肉厚に
応じて、発熱体の表面温度、加熱時間、冷却時間をどの
ようにすれば、チューブを良好に溶着できるかの実験を
行った。両発熱体によりチューブを挟持した際の隙間は
１．５ｍｍとした。良好な溶着を行える条件は下表の通
りである。尚、冷却体の温度は発熱体の温度よりも低け
れば良いが、両者の温度差は大きいほど良い。実験例で
は、２５℃とした。 【００２９】 【表１】 【００３０】 【発明の効果】以上詳述したように、本発明によれば、
誘電性のない熱溶融性チューブでも容易に溶着できると
共に、チューブを、両発熱体間及び両冷却体間に容易に
位置決めできる。又、溶着時に、チューブに無理な力が
作用せず、チューブが溶融部分で切れたり、肉厚が薄く
なったりすることはなく、チューブを良好に溶着でき
る。更に、本発明の溶着装置は、熱板溶着式であるた
め、従来のように、大型で複雑な高周波発振回路、電源
回路等が不要で、上下一対の発熱体を加熱する簡単な電
気回路を備えるだけでよく、溶着装置をコンパクトにで
きて、実験台やクリーンベンチ内でも場所を取らずに使
用できると共に、安価にできる。更に、溶着操作中、チ
ューブ内は、溶融部分が高温になっているので、無菌性
が保たれる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat melting tube welding apparatus, and more particularly, to a tube made of a heat melting material such as a synthetic resin, for example, poly. The present invention relates to an apparatus for welding a heat-meltable tube such as a vinyl chloride tube or a polyethylene tube. [0002] A synthetic resin tube is connected to a blood bag, a gas permeable cell culture bag, and the like, and blood or cell suspension is injected into the bag using the tube. In addition, the contents of the bag are replaced.
By the way, after the above-described injection operation or replacement operation, a part of the tube is sealed to prevent the contents of the bag from flowing out, or the outside air from entering the bag and being contaminated with bacteria. There is a need to prevent. In order to seal the synthetic resin tube, a high-frequency dielectric heating type welding apparatus is generally used.
There is what is shown to 43101 gazette. In this one, 1
The tube is sandwiched between a pair of electrodes, a high-frequency current is passed between both electrodes, the tube between both electrodes generates heat due to dielectric loss, and the softened and melted tube is crushed between the electrodes, The upper and lower portions are welded. However, since the above conventional welding apparatus is a high frequency dielectric heating type, the constituent material of the tube is a dielectric material (for example, polyvinyl chloride, ethylene vinyl acetate). There was a problem that the tube could not be welded unless it was a polymer or the like. Further, the above conventional welding apparatus has a large and complicated high-frequency oscillation circuit and power supply circuit, so that it becomes large and takes up space and is expensive when used in a laboratory bench or clean bench. There was also a problem of being. An object of the present invention is to provide a hot-melt tube welding apparatus capable of solving the above-mentioned problems. In order to achieve the above object, the present invention is characterized in that a movable lever is provided on the main body so as to be swingable in the vertical direction. A pair of upper and lower heating elements are provided in the opposing part, and a pair of upper and lower cooling bodies are provided in the opposing part of the main body and the movable lever, separate from the heating element, and a holder for holding the tube is movable in the main body. The holder can be repositioned between a heating position where the tube held by the holder is located between both heating elements and a cooling position where the tube held by the holder is located between both cooling bodies, The tube is seized onto the upper heating element on the lower surface of the upper heating element.
An upper buffer membrane is provided to prevent the tube from receiving the tube held in the holder and generating heat below the tube.
The lower buffer film for preventing seizure to the body is provided. [0008] At the time of welding the heat-meltable tube, after the tube is positioned between both heating elements by moving the holder,
The movable lever is swung downward, the tube is sandwiched and heated by both heating elements, and the tube is softened and melted. Next, after swinging the movable lever upward,
The tube is positioned between both cooling bodies by moving the holder. In this case, an upper buffer film is provided on the lower surface of the upper heating element, and the holder is provided with a lower buffer film that receives a tube held by the holder. During the movement, the tube is not baked on each heating element and is not pulled by each heating element. Thereafter, the movable lever is swung downward again, and the tubes are sandwiched and pressed by both cooling bodies, and are crushed and solidified by cooling, and the portions of the inner surface of the tube which are opposed to each other are welded. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. A hot melt tube welding apparatus is a hot plate welding type and is of a desktop type. The welding device is the main body 1
A movable lever 2, a pair of upper and lower heating elements 3, 4 and cooling bodies 5, 6, a holder 7, and a pair of upper and lower buffer films 8, 9.
Etc. The main body 1 has an L shape when viewed from the front, and forms a left side portion of the main body 1 and has a protruding portion 10 having a high height.
And a pedestal 11 that constitutes the right and left central part and the right side of the main body 1 and has a height lower than that of the protruding part 10. The protrusion 10 is provided with an electric circuit (not shown) connected to a power source via a cord 12, a power switch 13, a lamp 14, a buzzer (not shown), and the like. In addition to this, the temperature adjustment function of the heating elements 3 and 4 and the energization time setting function for setting the energization time to the heating elements 3 and 4 are provided.
Not shown. When the set energization time has elapsed,
The lamp 14 is turned on and a buzzer notifies the user. A bracket 17 is erected on the left side of the base 11. The left side portion of the movable lever 2 is pivotally supported by the bracket 17 by a support shaft 19 in the front-rear direction, so that the movable lever 2 can swing up and down.
A leaf spring 20 for biasing the movable lever 2 upward is interposed between the base portion 11 of the main body 1 and the left side portion of the movable lever 2. Each heating element 3, 4 has a movable lever 2 and a main body 1.
Left and right direction (longitudinal direction) in the opposite part of the base part 11
It is disposed at a substantially central portion and a central portion in the front-rear direction.
The upper heating element 3 protrudes downward from the movable lever 2, and the lower heating element 4 protrudes upward from the base 11. Each of the heating elements 3 and 4 is made of a metal block or the like, and has electric heaters 22 and 23 such as nichrome wires, and each electric heater 2
Reference numerals 2 and 23 are connected to an electric circuit in the main body 1. still,
The temperature of the heating elements 3 and 4 is 1 by operating the temperature adjustment function.
It can be set in the range of 00 to 300 ° C. Each cooling body 5, 6 has a movable lever 2 and a main body 1.
Is disposed on the right side and in the center in the front-rear direction in the opposite portion of the base 11. The upper cooling body 5 protrudes downward from the movable lever 2, and the lower cooling body 6 protrudes upward from the base portion 11. Each of the cooling bodies 5 and 6 is made of a metal plate having a planar shape in the front-rear direction. Each of the cooling bodies 5 and 6 is set to a temperature lower than that of each of the heating elements 3 and 4, but is not heated or cooled in the embodiment. In addition, each cooling body 5 and 6 may be heated or cooled. The holder 7 is provided on the base 11 of the main body 1 so as to be slidable in the left-right direction, and is formed by press-molding a metal plate. The left side portion of the holder 7 has a bifurcated shape, and a bifurcated portion 25 that can include the lower heating element 4 and the lower cooling body 6.
At the front and rear portions thereof, a pair of front and rear guide grooves 26 that are elongated in the left-right direction and a pair of front and rear holding portions 27 that are bent upward are formed. A guide shaft 28 fixed to the base portion 11 is inserted into each guide groove 26 so as to be relatively movable in the left-right direction. Each holding portion 27 is formed with a holding hole 29 that opens obliquely upward to the right, and the hot-melt tube 30 is removably inserted and held in the holding hole 29. A shooting 31 for sliding the holder 7 is bent upward at the right end of the holder 7. The holder 7 is moved by sliding in the left-right direction as shown in FIG.
As shown in FIGS. 3 and 5, the heating position where the tube 30 held by the holding unit 27 is located between the two heating elements 3, 4,
As shown in FIGS. 6 and 7, the position of the tube 30 held by the holding portion 27 can be changed to a cooling position located between the cooling bodies 5 and 6. When the holder 7 is positioned at the heating position, each guide shaft 28 is moved to each guide groove 26.
When the holder 7 is positioned at the cooling position, the guide shafts 28 are moved to the guide grooves when the right end of the inner peripheral surface of the bifurcated portion 25 is in contact with the lower cooling body 6. It is made to contact | abut with the left end part of 26, Thereby, the holder 7 can be positioned easily. The buffer films 8 and 9 are formed on the upper side of the tube 30.
Also prevents seizure to the heating element 3 or the lower heating element 4
Therefore, it is made of a material having excellent heat resistance and high strength.
Examples of the material include ordinary Teflon tape, Teflon tape based on a glass cloth having a coarse texture, silicone rubber, and the like. The upper buffer film 8 is bonded to the entire lower surface of the upper heating element 3. Lower buffer membrane 9
Is provided between the lower surfaces of both holding portions 27 of the holder 7,
When the holder 7 is positioned at the heating position, the lower buffer film 9 covers the upper surface of the lower heating element 4 and when the holder 7 is positioned at the cooling position. The lower buffer film 9 covers the upper surface of the lower cooling body 6. Next, the welding operation of the hot melt tube will be described. For example, a tube made of the same material is connected to a synthetic resin bag for cryopreservation of blood. After injecting blood into the bag with this tube, the tube is welded and sealed as described below. The tube is made of a synthetic resin, but the constituent material may be a dielectric material or a non-dielectric material. For example, polyvinyl chloride is used as the dielectric material. Examples of the non-dielectric material include polyethylene, polypropylene, and polyester (for example, polyethylene terephthalate and polybutylene terephthalate). First, as shown in FIG. 4, the heat-meltable tube 30 is held by both holding portions 27 of the holder 7 and, as shown in FIGS. The lower buffer film 9 covers the upper surface of the lower heating element 4. The power switch 13 is turned on before or after the tube 30 and the holder 7 are set, and the temperature of the heating elements 3 and 4 is set to a predetermined temperature by the temperature adjusting function. In this case, the energizing time for the heating elements 3 and 4 may or may not be set by the energizing time setting function. As shown in FIG. 5, the movable lever 2
Is pressed downward against the leaf spring 20, and the both heating parts 3, 4 are sandwiched between the two holding portions 27 of the tube 30 via the buffer films 8, 9 and heated. This
Heat from the heating elements 3 and 4 propagates from the outer peripheral part of the tube 30 to the inner peripheral part, and the heat generating elements 3 and 4 of the tube 30 are softened and melted. The suitable temperature and holding time of the heating elements 3 and 4 vary depending on the material, inner diameter, outer diameter, and thickness of the tube 30. Further, the tube 30 is formed by both the heating elements 3 and 4.
When sandwiching is required, it is necessary to leave a suitable gap between the heating elements 3 and 4. If there is no suitable gap, tube 3
This is because, when 0 is heated, if the tube 30 is broken and the gap is too large, the tube 30 may be heated and poorly melted. The optimum gap is not less than the thickness of the tube 30 and not more than twice the thickness. The wall thickness is ½ of the difference between the outer diameter and the inner diameter of the tube 30. When the tube 30 is heated and melted, the melted portion of the tube 30 is held by the lower buffer film 9,
It becomes a fixed state. If a Teflon tape based on a glass cloth having a coarse texture is used as the lower buffer film 9, the molten resin in the tube 30 penetrates into the gaps of the texture and becomes stuck.
Can be fixed by the lower buffer film 9 with a larger fixing force. After the tube 30 is softened and melted as described above, the pressing of the movable lever 2 is released, and the movable lever 2 is swung upward to return to the original position. In this case, since the upper buffer film 8 having excellent heat resistance is fixed to the entire lower surface of the upper heating element 3, the tube 30 is raised when the movable lever 2 is swung upward. The upper heating element 3 is not seized and pulled. Therefore, an excessive force is not applied to the tube 30 so that the tube 30 is not cut at the melted portion and the thickness is not reduced. Next, as shown in FIG. 6, the holder 7 is slid rightward to the cooling position. In this case, the lower buffer film 9 excellent in heat resistance is provided between the lower surfaces of the holding portions 27 of the holder 7 and is positioned between the lower heating element 4 and the tube 30. Is seized on the lower heating element 4 and is not pulled between the lower heating element 4 and the holder 7 sliding. Therefore, an excessive force is not applied to the tube 30 so that the tube 30 is not cut at the melted portion and the thickness is not reduced. In particular, as described above, the molten portion of the tube 30 is held and fixed on the lower buffer film 9 provided in the holder 7, and the lower buffer film 9 holds the molten portion of the tube 30. Since it functions like a receiving tray, the molten portion of the tube 30 moves smoothly together with the lower buffer film 9 when the holder 7 slides to the right. Therefore,
It is possible to more effectively prevent an excessive force from acting on the tube 30, and further to prevent breakage at the melted portion of the tube 30 and reduction in thickness. Next, as shown in FIG. 7, the movable lever 2
Is pressed downward against the leaf spring 20, and the tubes 30 are sandwiched, pressed, and crushed by the cooling bodies 5 and 6 for a predetermined time. As a result, the melted portion of the tube 30 is cooled and solidified, and the vertically opposed portions of the inner surface of the tube 30 are welded. As shown in FIG.
Is done. When the welded portion of the tube 30 is cooled, the welded portion of the tube 30 is peeled from the lower buffer film 9. It should be noted that an experiment was conducted to determine whether the tube could be welded well in accordance with the surface temperature, heating time, and cooling time of the heating element according to the material, inner diameter, outer diameter, and thickness of the tube. . The gap when the tube was sandwiched between both heating elements was 1.5 mm. The conditions for good welding are as shown in the table below. The temperature of the cooling body only needs to be lower than the temperature of the heating element, but it is better that the temperature difference between the two is larger. In the experimental example, the temperature was set to 25 ° C. [Table 1] As described in detail above, according to the present invention,
A heat-meltable tube having no dielectric property can be easily welded, and the tube can be easily positioned between both heating elements and between both cooling bodies. Moreover, an excessive force does not act on the tube at the time of welding, and the tube can be welded satisfactorily without the tube being cut at the melted portion or being thinned. Furthermore, since the welding apparatus of the present invention is a hot plate welding type, it does not require a large and complicated high-frequency oscillation circuit, power supply circuit, etc. as in the prior art, and a simple electric circuit for heating a pair of upper and lower heating elements is provided. All that is required is a compact welding apparatus that can be used without taking up space in a laboratory bench or clean bench, and at a low cost. Furthermore, during the welding operation, sterility is maintained because the melted portion of the tube is at a high temperature.

【図面の簡単な説明】 【図１】本発明の一実施例を示す斜視図である。 【図２】本発明の一実施例を示す正面図である。 【図３】本発明の一実施例を示す平面図である。 【図４】本発明の一実施例を示す要部の一部断面正面図
である。 【図５】本発明の一実施例を示す一部断面正面図であ
る。 【図６】本発明の一実施例を示す一部断面正面図であ
る。 【図７】本発明の一実施例を示す一部断面正面図であ
る。 【図８】本発明の一実施例を示すチューブの正面図であ
る。 【符号の説明】 １ 本体 ２ 可動レバー ３，４ 発熱体 ５，６ 冷却体 ７ ホルダー ８，９ 緩衝膜 ３０ 熱溶融性チューブBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a front view showing an embodiment of the present invention. FIG. 3 is a plan view showing an embodiment of the present invention. FIG. 4 is a partial cross-sectional front view of an essential part showing an embodiment of the present invention. FIG. 5 is a partial sectional front view showing an embodiment of the present invention. FIG. 6 is a partially sectional front view showing an embodiment of the present invention. FIG. 7 is a partially sectional front view showing an embodiment of the present invention. FIG. 8 is a front view of a tube showing an embodiment of the present invention. [Description of Symbols] 1 Main body 2 Movable lever 3, 4 Heating element 5, 6 Cooling body 7 Holder 8, 9 Buffer film 30 Hot melt tube

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭64−58638（ＪＰ，Ａ) 特開 平５−254022（ＪＰ，Ａ) 特開 昭61−72523（ＪＰ，Ａ) 特公 平４−42181（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 65/00 - 65/82 ─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A 64-58638 (JP, A) JP-A 5-254022 (JP, A) JP-A 61-72523 (JP, A) 42181 (JP, B2) (58) Fields surveyed (Int.Cl. 7 , DB name) B29C 65/00-65/82

Claims (1)

(57)【特許請求の範囲】 【請求項１】 本体に可動レバーが上下方向に揺動自在
に備えられて、 本体と可動レバーの対向部分に、上下一対の発熱体が備
えられると共に、 本体と可動レバーにおける、発熱体とは別個の対向部分
に、上下一対の冷却体が備えられ、 本体に、チューブを保持するホルダーが移動自在に備え
られて、 ホルダーが、ホルダーに保持されたチューブが両発熱体
間に位置する加熱位置と、ホルダーに保持されたチュー
ブが両冷却体間に位置する冷却位置とに位置変更自在と
され、 上側発熱体の下面に、チューブの上側発熱体への焼き付
きを防止する上側緩衝膜が備えられ、 ホルダーに、ホルダーに保持されたチューブを受け且つ
チューブの下側発熱体への焼き付きを防止する下側緩衝
膜が備えられたことを特徴とする熱溶融性チューブの溶
着装置。(57) [Claims] [Claim 1] A movable lever is provided on the main body so as to be swingable in the vertical direction, and a pair of upper and lower heating elements are provided at a portion facing the main body and the movable lever. In the movable lever, a pair of upper and lower cooling bodies are provided at a portion of the movable lever that is opposed to the heating element, and a holder for holding the tube is movably provided in the main body, and the holder is held by the tube held by the holder. It is possible to change the position between the heating position located between the two heating elements and the cooling position where the tube held in the holder is located between the two cooling elements, and the tube is baked on the upper heating element on the lower surface of the upper heating element. With
An upper buffer membrane is provided to prevent the opening, and the holder receives the tube held in the holder and
A welding apparatus for a heat-meltable tube, comprising a lower buffer film for preventing seizure to the lower heating element of the tube.
JP34956393A 1993-12-28 1993-12-28 Hot melt tube welding equipment Expired - Fee Related JP3422061B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34956393A JP3422061B2 (en) 1993-12-28 1993-12-28 Hot melt tube welding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34956393A JP3422061B2 (en) 1993-12-28 1993-12-28 Hot melt tube welding equipment

Publications (2)

Publication Number Publication Date
JPH07195526A JPH07195526A (en) 1995-08-01
JP3422061B2 true JP3422061B2 (en) 2003-06-30

Family

ID=18404568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34956393A Expired - Fee Related JP3422061B2 (en) 1993-12-28 1993-12-28 Hot melt tube welding equipment

Country Status (1)

Country Link
JP (1) JP3422061B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700066241A1 (en) 2017-06-14 2018-12-14 Delcon S R L SUPPORT DEVICE FOR A TUBULAR ELEMENT FOR A APPLIANCE WELDER AND APPLIANCE WELDER INCLUDING THE SUPPORTING DEVICE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165225A (en) * 1984-02-08 1985-08-28 Mitsubishi Plastics Ind Ltd Sealing method of heat shrinkable tube
JPS6172523A (en) * 1984-09-16 1986-04-14 Matsushita Electric Ind Co Ltd Thermowelding apparatus
JPS6458638A (en) * 1987-08-22 1989-03-06 Ace Medical Kk Sealing equipment for tube
JPH0673911B2 (en) * 1992-12-11 1994-09-21 ニッタ株式会社 Method for fusing the ends of thermoplastic resin band to each other

Also Published As

Publication number Publication date
JPH07195526A (en) 1995-08-01

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