JP2003320584A - Ultrasonic welding device - Google Patents

Ultrasonic welding device

Info

Publication number
JP2003320584A
JP2003320584A JP2002131203A JP2002131203A JP2003320584A JP 2003320584 A JP2003320584 A JP 2003320584A JP 2002131203 A JP2002131203 A JP 2002131203A JP 2002131203 A JP2002131203 A JP 2002131203A JP 2003320584 A JP2003320584 A JP 2003320584A
Authority
JP
Japan
Prior art keywords
sheet material
ultrasonic welding
welding device
pressing
pressing roller
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.)
Granted
Application number
JP2002131203A
Other languages
Japanese (ja)
Other versions
JP3633910B2 (en
Inventor
Masato Inoue
昌人 井上
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.)
Inoue Shoten KK
Original Assignee
Inoue Shoten KK
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 Inoue Shoten KK filed Critical Inoue Shoten KK
Priority to JP2002131203A priority Critical patent/JP3633910B2/en
Publication of JP2003320584A publication Critical patent/JP2003320584A/en
Application granted granted Critical
Publication of JP3633910B2 publication Critical patent/JP3633910B2/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
    • B29C66/83—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
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
    • 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
    • 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
    • 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
    • B29C66/8161—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 said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • 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
    • B29C66/73—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

Landscapes

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic welding device capable of surely welding even a sheet material having poorer heat resistance. <P>SOLUTION: In the device, a press roller 6a is connected with a shaft 57 to press the sheet material against a tool horn 5a by using a coil spring 60 pressing a fastening member 59 firmly-fixed on the way of the shaft 57. In order to control this pressing strength of the press roller 6a upon the sheet material, a support bolt 67 contacts the fastening member going against the pressing direction of the coil spring 60 (see the chain double-dashed lines shown in Fig.) to absorb the pressing strength of the coil spring 60 pressing the fastening member 59 on a bottom wall 58a of a storage case. Thus the pressing strength of the coil spring 60 is never transmitted to the press roller 6a, allowing the pressing strength of the press roller 6a against the sheet material to be controlled. <P>COPYRIGHT: (C)2004,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】 本発明は、耐熱性に劣るシ
ート材料を確実に溶着することができる超音波溶着装置
に関するものである。TECHNICAL FIELD The present invention relates to an ultrasonic welding apparatus capable of reliably welding a sheet material having poor heat resistance.

【０００２】[0002]

【従来の技術】 従来より、ポリ塩化ビニルで構成され
たシート材料を溶着する装置として超音波溶着装置が知
られている。この超音波溶着装置は、超音波を伝達する
工具ホーンと、その工具ホーンに対してシート材料を押
圧する押圧ローラとを備えている。溶着される１のシー
ト材料と他のシート材料とは、重畳された状態で工具ホ
ーンと押圧ローラとの間に挟み込みまれる。押圧ローラ
はコイルバネで工具ホーンに向けて押圧されており、両
シートの重畳部分は押圧ローラによって工具ホーンに向
けて押圧されつつ、移送される。一方、工具ホーンには
超音波発生器で発生した超音波が集中しており、その超
音波によって発生する摩擦熱を利用して両シート材料は
溶着される。2. Description of the Related Art An ultrasonic welding device has been conventionally known as a device for welding a sheet material made of polyvinyl chloride. This ultrasonic welding apparatus includes a tool horn that transmits ultrasonic waves and a pressing roller that presses the sheet material against the tool horn. The one sheet material and the other sheet material to be welded are sandwiched between the tool horn and the pressing roller in a superposed state. The pressing roller is pressed against the tool horn by a coil spring, and the overlapping portion of both sheets is transferred while being pressed against the tool horn by the pressing roller. On the other hand, the ultrasonic waves generated by the ultrasonic generator are concentrated on the tool horn, and the friction heat generated by the ultrasonic waves is used to weld both sheet materials.

【０００３】[0003]

【発明が解決しようとする課題】 しかしながら、上記
超音波溶着装置では、シート材料の素材によって押圧ロ
ーラの押圧力を調節することができなかった。特に近
年、環境問題の影響により、シート材料の素材がポリ塩
化ビニルからポリエチレンに置き変わりるようになって
きた。ポリエチレンはポリ塩化ビニルに比べ耐熱性に劣
るものである。よって、ポリエチレンで構成されたシー
ト材料をポリ塩化ビニルで構成されたシート材料の場合
と同様の押圧力で押圧した場合には押圧力が強すぎ、除
去される溶融部が増えることにより溶着部が弱くなった
り、場合によっては溶断されてしまうという問題点があ
った。However, in the above ultrasonic welding device, the pressing force of the pressing roller cannot be adjusted depending on the material of the sheet material. Particularly in recent years, due to the influence of environmental problems, the material of the sheet material has been changed from polyvinyl chloride to polyethylene. Polyethylene is inferior in heat resistance to polyvinyl chloride. Therefore, when the sheet material made of polyethylene is pressed with the same pressing force as that of the sheet material made of polyvinyl chloride, the pressing force is too strong and the welded portion is increased by increasing the number of melted portions to be removed. There was a problem that it was weakened and, in some cases, melted.

【０００４】本発明は、上述した問題点を解決するため
になされたものであり、耐熱性に劣るシート材料であっ
ても確実に溶着することができる超音波溶着装置を提供
することを目的としている。The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide an ultrasonic welding apparatus capable of reliably welding even a sheet material having poor heat resistance. There is.

【０００５】[0005]

【課題を解決するための手段】 この目的を達成するた
めに、請求項１記載の超音波溶着装置は、超音波を伝達
する工具ホーンと、その工具ホーンに対してシート材料
を押圧する押圧ローラとを有し、前記工具ホーンと押圧
ローラとの間に１のシート材料と他のシート材料とを重
ね合わせて挟み込み、両シート材料の重畳部分を溶着加
工するものであり、前記シート材料に対する前記押圧ロ
ーラの押圧力を抑制するために、前記工具ホーンと前記
押圧ローラとの間に所定の間隙を形成する間隙形成機構
を備えている。In order to achieve this object, an ultrasonic welding device according to claim 1 is a tool horn for transmitting ultrasonic waves, and a pressing roller for pressing a sheet material against the tool horn. A sheet material of 1 and another sheet material are superposed and sandwiched between the tool horn and the pressing roller, and an overlapping portion of both sheet materials is welded. In order to suppress the pressing force of the pressing roller, a gap forming mechanism that forms a predetermined gap between the tool horn and the pressing roller is provided.

【０００６】この請求項１記載の超音波溶着装置によれ
ば、溶着される１のシート材料と他のシート材料とは、
重畳された状態で工具ホーンと押圧ローラとの間に挟み
込まれる。両シート重畳部分は押圧ローラによって工具
ホーンに向けて押圧されつつ、移送される。一方、工具
ホーンには超音波発生器で発生した超音波が集中してお
り、その超音波によって発生する摩擦熱を利用して両シ
ート材料は溶着される。この際、工具ホーンと押圧ロー
ラとの間には間隙形成機構によって所定の間隙が形成さ
れおり、シート材料に対する押圧ローラの押圧力は抑制
されている。According to the ultrasonic welding device of the first aspect, the one sheet material and the other sheet material to be welded are:
It is sandwiched between the tool horn and the pressing roller in a superposed state. The overlapping portions of both sheets are transported while being pressed against the tool horn by the pressing roller. On the other hand, the ultrasonic waves generated by the ultrasonic generator are concentrated on the tool horn, and the friction heat generated by the ultrasonic waves is used to weld both sheet materials. At this time, a predetermined gap is formed between the tool horn and the pressing roller by the gap forming mechanism, and the pressing force of the pressing roller against the sheet material is suppressed.

【０００７】請求項２記載の超音波溶着装置は、請求項
１記載の超音波溶着装置において、前記押圧ローラと一
端が連結されたシャフトと、そのシャフトの他端側を収
納する収納ケースと、その収納ケースに収納されるシャ
フトに固着された固着部材と、その固着部材に当接して
前記工具ホーンに向けて前記固着部材を押圧する押圧部
材とを備え、前記隙間形成機構は、前記収納ケースに載
置された架台と、その架台に螺着され、前記固着部材が
押圧されている方向に逆らって、前記固着部材を支持す
る支持部材とによって構成されている。An ultrasonic welding apparatus according to a second aspect is the ultrasonic welding apparatus according to the first aspect, wherein a shaft whose one end is connected to the pressing roller, and a housing case for housing the other end side of the shaft are provided. The gap forming mechanism includes: a fixing member fixed to a shaft housed in the storage case; and a pressing member that abuts on the fixing member and presses the fixing member toward the tool horn. And a supporting member that is screwed to the mounting base and that supports the fixing member against the pressing direction of the fixing member.

【０００８】請求項２記載の超音波溶着溶断装置によれ
ば、請求項１記載の超音波溶着装置と同様に作用する
上、押圧ローラにはシャフトが連結されており、押圧ロ
ーラはシャフトの途中に固着された固着部材を押圧する
押圧部材によって、工具ホーンに向けて押圧されてい
る。収納ケースに載置された架台に螺着された支持部材
は、押圧部材の押圧方向に逆らった状態にある固着部材
に接触し、固着部材に付勢される押圧力を吸収する。よ
って押圧部材の押圧力は押圧ローラには伝達されず、シ
ート材料に対する押圧ローラの押圧力は低減される。According to the ultrasonic welding device of the second aspect, the ultrasonic welding device operates in the same manner as the ultrasonic welding device of the first aspect, and the shaft is connected to the pressing roller, and the pressing roller is in the middle of the shaft. It is pressed toward the tool horn by the pressing member that presses the fixing member fixed to the. The support member screwed to the pedestal mounted on the storage case comes into contact with the fixing member in a state of being counter to the pressing direction of the pressing member, and absorbs the pressing force urged by the fixing member. Therefore, the pressing force of the pressing member is not transmitted to the pressing roller, and the pressing force of the pressing roller on the sheet material is reduced.

【０００９】請求項３記載の超音波溶着装置は、請求項
２記載の超音波溶着装置において、前記支持部材は、前
記シャフトと平行な方向に往復移動して前記固着部材を
支持する。An ultrasonic welding device according to a third aspect of the present invention is the ultrasonic welding device according to the second aspect, wherein the support member reciprocates in a direction parallel to the shaft to support the fixing member.

【００１０】請求項４記載の超音波溶着装置は、請求項
１記載の超音波溶着装置において、前記押圧ローラと一
端が連結されたシャフトと、そのシャフトの他端側を収
納する収納ケースと、その収納ケースに収納されるシャ
フトに固着された固着部材と、その固着部材に当接して
前記工具ホーンに向けて前記固着部材を押圧する押圧部
材とを備え、前記隙間形成機構は、前記収納ケースに立
設された立壁と、その立壁と前記固着部材とを締結する
締結具とによって構成されている。An ultrasonic welding apparatus according to a fourth aspect is the ultrasonic welding apparatus according to the first aspect, wherein a shaft whose one end is connected to the pressing roller and a storage case for storing the other end side of the shaft are provided. The gap forming mechanism includes: a fixing member fixed to a shaft housed in the storage case; and a pressing member that abuts on the fixing member and presses the fixing member toward the tool horn. And a fastener for fastening the standing wall and the fixing member.

【００１１】請求項４記載の超音波溶着溶断装置によれ
ば、請求項１記載の超音波溶着装置と同様に作用する
上、押圧ローラにはシャフトが連結されており、押圧ロ
ーラはシャフトの途中に固着された固着部材を押圧する
押圧部材によって、工具ホーンに向けて押圧されてい
る。締結具は押圧部材の押圧方向に逆らった状態にある
固着部材と収納ケースに立設された立壁とを締結する。
よって押圧部材の押圧力は押圧ローラには伝達されず立
壁に吸収され、シート材料に対する押圧ローラの押圧力
は低減される。According to the ultrasonic welding apparatus of claim 4, the ultrasonic welding apparatus operates in the same manner as the ultrasonic welding apparatus of claim 1, and in addition, the shaft is connected to the pressing roller, and the pressing roller is in the middle of the shaft. It is pressed toward the tool horn by the pressing member that presses the fixing member fixed to the. The fastener fastens the fixing member, which is in a state opposite to the pressing direction of the pressing member, and the standing wall standing on the storage case.
Therefore, the pressing force of the pressing member is not transmitted to the pressing roller and is absorbed by the standing wall, and the pressing force of the pressing roller on the sheet material is reduced.

【００１２】請求項５記載の超音波溶着装置は、請求項
４記載の超音波溶着装置において、前記立壁には、前記
シャフトと平行な方向に延びる小判状の長穴が穿設され
ている。An ultrasonic welding apparatus according to a fifth aspect of the present invention is the ultrasonic welding apparatus according to the fourth aspect, wherein the standing wall is provided with an oblong hole extending in a direction parallel to the shaft.

【００１３】請求項５記載の超音波溶着溶断装置によれ
ば、請求項４記載の超音波溶着装置と同様に作用する
上、締結部材は立壁に穿設された小判状の長穴のいずれ
かの位置において固着部材と立壁とを締結する。According to the ultrasonic welding apparatus of claim 5, the ultrasonic welding apparatus of the fourth aspect operates in the same manner as the ultrasonic welding apparatus of claim 4, and the fastening member is one of oval-shaped elongated holes formed in the standing wall. The fastening member and the standing wall are fastened at the position.

【００１４】請求項６記載の超音波溶着装置は、請求項
１から５のいずれかに記載の超音波溶着装置において、
前記シート材料はカーボンを含むポリエチレンで構成さ
れており、前記隙間形成機構は、前記工具ホーンと押圧
ローラとの間隙を前記シート材料の重畳部分の略１０パ
ーセントから略５０パーセントの範囲に形成する。An ultrasonic welding apparatus according to claim 6 is the ultrasonic welding apparatus according to any one of claims 1 to 5, wherein:
The sheet material is made of polyethylene containing carbon, and the gap forming mechanism forms a gap between the tool horn and the pressing roller in a range of approximately 10% to approximately 50% of the overlapping portion of the sheet material.

【００１５】請求項７記載の超音波溶着装置は、請求項
６記載の超音波溶着装置において、前記隙間形成機構
は、前記工具ホーンと押圧ローラとの間隙を前記シート
材料の重畳部分の略３０パーセントに形成する。An ultrasonic welding device according to a seventh aspect is the ultrasonic welding device according to the sixth aspect, wherein the gap forming mechanism forms a gap between the tool horn and the pressing roller at about 30 at a portion where the sheet material overlaps. Form to percent.

【００１６】請求項８記載の超音波溶着装置は、請求項
１から５のいずれかに記載の超音波溶着装置において、
前記シート材料はアルミを含むポリエチレンで構成され
ており、前記隙間形成機構は、前記工具ホーンと押圧ロ
ーラとの間隙を前記シート材料の重畳部分の略５パーセ
ントから略３５パーセントの範囲に形成する。The ultrasonic welding device according to claim 8 is the ultrasonic welding device according to any one of claims 1 to 5, wherein:
The sheet material is made of polyethylene containing aluminum, and the gap forming mechanism forms a gap between the tool horn and the pressing roller in a range of approximately 5% to approximately 35% of the overlapping portion of the sheet material.

【００１７】請求項９記載の超音波溶着装置は、請求項
８記載の超音波溶着装置において、前記隙間形成機構
は、前記工具ホーンと押圧ローラとの間隙を前記シート
材料の重畳部分の略２０パーセントに形成する。An ultrasonic welding apparatus according to a ninth aspect is the ultrasonic welding apparatus according to the eighth aspect, wherein the gap forming mechanism forms a gap between the tool horn and the pressing roller at approximately 20 at a portion where the sheet material overlaps. Form to percent.

【００１８】請求項１０記載の超音波溶着装置は、請求
項１から９のいずれかに記載の超音波溶着装置におい
て、前記シート材料には、所定方向に延びる糸目が形成
されており、前記押圧ローラは、円筒状の外周面に前記
シート材料に当接する突部を有し並列に並べられた２以
上の転動体と、その並列に並べられた２以上の転動体の
間に形成され、前記糸目を跨ぐための溝部とを備えてい
る。An ultrasonic welding apparatus according to a tenth aspect is the ultrasonic welding apparatus according to any one of the first to ninth aspects, wherein the sheet material is formed with threads extending in a predetermined direction, and the pressing force is applied. The roller is formed between two or more rolling elements arranged in parallel and having a protrusion on the outer peripheral surface of the cylinder that abuts against the sheet material, and the two or more rolling elements arranged in parallel. And a groove for straddling the thread.

【００１９】請求項１０載の超音波溶着溶断装置によれ
ば、請求項１から９のいずれかに記載の超音波溶着装置
と同様に作用する上、押圧ローラは、並列に並べられた
２以上の転動体の間に形成された溝部において、シート
材料上において所定方向に延びる糸目を跨ぎつつ、円筒
状の外周面に前記シート材料に当接する突部を有し並列
に並べられた２以上の転動体においてシート材料の重畳
部を溶着する。According to the ultrasonic welding apparatus of claim 10, the same operation as the ultrasonic welding apparatus according to any one of claims 1 to 9 is achieved, and the pressing rollers are arranged in parallel in two or more. In the groove formed between the rolling elements of the two or more, which are arranged in parallel, the cylindrical outer peripheral surface has a protrusion that abuts the sheet material while straddling a thread extending in a predetermined direction on the sheet material. The overlapping portion of the sheet material is welded on the rolling element.

【００２０】[0020]

【発明の実施の形態】 以下、本発明の好ましい実施例
について、添付図面を参照して説明する。図１は、本発
明の第１実施例である超音波溶着装置１の斜視図であ
る。超音波溶着装置１は、ポリエチレン（ＰＥ）で構成
されたシート材料やポリ塩化ビニルで構成されたシート
材料を溶着加工するためのものである。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of an ultrasonic welding device 1 which is a first embodiment of the present invention. The ultrasonic welding device 1 is for welding a sheet material made of polyethylene (PE) or a sheet material made of polyvinyl chloride.

【００２１】超音波溶着装置１は、主に、１のシート材
料を巻回する第１巻回ローラ３ａと、他のシート材料を
巻回する第２巻回ローラ３ｂと、両シート材料の少なく
とも一部分を重複させたまま搬送する第１搬送ローラ４
と、その第１搬送ローラ４から搬送される両シート材料
の重複部分を超音波により溶着加工する工具ホーンユニ
ット５と、工具ホーンユニット５と対峙する位置に配置
された押圧ローラユニット６と、その工具ホーンユニッ
ト５及び押圧ローラユニット６をシート材料の搬送方向
と直交する方向にスライドさせる第１レール部材７及び
第２レール部材８と、工具ホーンユニット５及び押圧ロ
ーラユニット６で溶着加工されたシート材料を該超音波
溶着装置１外へ搬送する第２搬送ローラ９と、その第２
搬送ローラ９に当接する自由回転可能な計測ローラ１０
ｂと、その計測ローラ１０ｂの回転量に基づいてシート
材料の加工長を計測する計測装置１０ａとを備えてい
る。The ultrasonic welding apparatus 1 mainly comprises a first winding roller 3a for winding one sheet material, a second winding roller 3b for winding another sheet material, and at least both sheet materials. A first transport roller 4 that transports a part of it while overlapping it
A tool horn unit 5 for welding the overlapping portions of both sheet materials conveyed from the first conveying roller 4 by ultrasonic waves; a pressing roller unit 6 arranged at a position facing the tool horn unit 5; A first rail member 7 and a second rail member 8 for sliding the tool horn unit 5 and the pressing roller unit 6 in a direction orthogonal to the sheet material conveying direction, and a sheet welded by the tool horn unit 5 and the pressing roller unit 6. A second transport roller 9 for transporting the material to the outside of the ultrasonic welding device 1;
A freely rotatable measuring roller 10 that abuts the transport roller 9.
b, and a measuring device 10a for measuring the processing length of the sheet material based on the rotation amount of the measuring roller 10b.

【００２２】第１及び第２巻回ローラ３ａ，３ｂは、十
分な長さのシート材料が巻回されたローラであり、ロー
ラ支持部材１２に回転可能に軸支されている。ローラ支
持部材１２は、第１及び第２搬送ローラ４，９と略等し
い長さに形成され、工具ホーンユニット５及び押圧ロー
ラユニット６がスライドする第１レール部材７及び第２
レール部材８と平行に配設されている。第１及び第２巻
回ローラ３ａ，３ｂは、このローラ支持部材１２の軸方
向にスライド可能にされているので、第１及び第２巻回
ローラ３ａ，３ｂをローラ支持部材１２の軸方向に自由
に移動させて、その重ね代を自在に調整することができ
る。The first and second winding rollers 3a and 3b are rollers wound with a sheet material having a sufficient length, and are rotatably supported by the roller support member 12. The roller support member 12 is formed to have a length substantially equal to that of the first and second transport rollers 4 and 9, and the tool horn unit 5 and the pressing roller unit 6 slide on the first rail member 7 and the second rail member 7.
It is arranged in parallel with the rail member 8. Since the first and second winding rollers 3a and 3b are slidable in the axial direction of the roller supporting member 12, the first and second winding rollers 3a and 3b are moved in the axial direction of the roller supporting member 12. It can be moved freely and its overlap margin can be adjusted freely.

【００２３】第１搬送ローラ４は、第１及び第２巻回ロ
ーラ３ａ，３ｂに巻回されるシート材料を、少なくとも
一部分を重ねたままの状態で工具ホーンユニット５及び
押圧ローラユニット６へ搬送するローラである。この第
１搬送ローラ４は、図示しない搬送ローラ駆動機構によ
り、工具ホーンユニット５及び押圧ローラユニット６の
搬送方向下流側に設けられた第２搬送ローラ９と同期し
て回転駆動されるよう構成されている。The first conveying roller 4 conveys the sheet material wound around the first and second winding rollers 3a and 3b to the tool horn unit 5 and the pressing roller unit 6 in a state where at least a part thereof is overlapped. It is a roller. The first transport roller 4 is configured to be rotationally driven by a transport roller driving mechanism (not shown) in synchronization with a second transport roller 9 provided on the downstream side of the tool horn unit 5 and the pressing roller unit 6 in the transport direction. ing.

【００２４】この第１搬送ローラ４並びに第１及び第２
巻回ローラ３ａ，３ｂには、一端に錘１３のついたベル
ト１４が張架されている。このベルト１４は、その表面
に耐摩耗加工が施された合成繊維で構成されている。ベ
ルト１４は、超音波溶着装置１の梁部材１ｂに設けられ
たベルト支持部材１ｃに支持されつつ先端に錘１３が縣
吊されているので、その錘１３の重さによってシート材
料を第１搬送ローラ４並びに第１及び第２巻回ローラ３
ａ，３ｂに押圧して、該シート材料を工具ホーンユニッ
ト５及び押圧ローラユニット６へ、緊張された状態で搬
送できる。尚、ベルト１４に代えて、第１搬送ローラ４
を押圧する自由回転可能な固定式のローラを用いても良
いが、装置コストや装置の簡略化を考慮すると、ベルト
１４を用いるのが好適である。The first conveying roller 4 and the first and second
A belt 14 having a weight 13 at one end is stretched around the winding rollers 3a and 3b. The belt 14 is made of synthetic fiber whose surface has been subjected to abrasion resistance. The belt 14 is supported by the belt supporting member 1c provided on the beam member 1b of the ultrasonic welding device 1, and the weight 13 is suspended at the tip of the belt 14, so that the weight of the weight 13 allows the sheet material to be first conveyed. Roller 4 and first and second winding rollers 3
By pressing a and 3b, the sheet material can be conveyed to the tool horn unit 5 and the pressing roller unit 6 in a tensioned state. In place of the belt 14, the first transport roller 4
Although a fixed roller that can freely rotate can be used, the belt 14 is preferably used in consideration of the cost of the device and simplification of the device.

【００２５】また、ベルト１４の一端に錘１３を取着し
て、そのベルト１４と第１及び第２巻回ローラ３ａ，３
ｂ並びに第１搬送ローラ４との間にシート材料を押圧し
て搬送したが、この錘１３に代えて、ベルト１４の先端
を超音波溶着溶断装置１のテーブル１ａ等に固定して、
ベルト１４と第１及び第２巻回ローラ３ａ，３ｂ並びに
第１搬送ローラ４との間にシート材料を押圧して搬送す
るようにしても良い。A weight 13 is attached to one end of the belt 14, and the belt 14 and the first and second winding rollers 3a, 3 are attached.
Although the sheet material is pressed and conveyed between b and the first conveying roller 4, instead of the weight 13, the tip of the belt 14 is fixed to the table 1a or the like of the ultrasonic welding device 1,
The sheet material may be pressed and conveyed between the belt 14 and the first and second winding rollers 3a and 3b and the first conveying roller 4.

【００２６】工具ホーンユニット５は、超音波を伝達す
る工具ホーン５ａと、その工具ホーン５ａを回転駆動す
る図示しないホーン駆動装置とを備えている。この工具
ホーンユニット５は、第１搬送ローラ４と平行にテーブ
ル１ａの一端部から他端部に配設された第１レール部材
７上を移動可能に構成されている。即ち、工具ホーンユ
ニット５は、第１搬送ローラ４によって搬送されるシー
ト材料の搬送方向と直交する方向に移動可能に構成され
ている。The tool horn unit 5 includes a tool horn 5a for transmitting ultrasonic waves and a horn drive device (not shown) for rotationally driving the tool horn 5a. The tool horn unit 5 is configured to be movable in parallel with the first transport roller 4 on a first rail member 7 arranged from one end to the other end of the table 1a. That is, the tool horn unit 5 is configured to be movable in the direction orthogonal to the transport direction of the sheet material transported by the first transport roller 4.

【００２７】押圧ローラユニット６は、第１搬送ローラ
４によって搬送されたシート材料を、上記した工具ホー
ン５ａに対して押圧ローラ６ａで押圧するものであり、
押圧ローラ６ａと、その押圧ローラ６ａを第１搬送ロー
ラ４によるシート材料の送り動作に応じて回転駆動させ
る図示しない押圧ローラ駆動装置とを備えている。押圧
ローラユニット６は、第１搬送ローラ４と平行にテーブ
ル１ａの一端部から他端部へ架設された梁部材１ｂの一
端部から他端部に配設された第２レール部材８上を移動
可能に構成されている。即ち、押圧ローラユニット６
は、第１搬送ローラ４によって搬送されるシート材料の
搬送方向と直交する方向に（工具ホーンユニット５の移
動方向と平行に）、移動可能に構成されている。尚、押
圧ローラユニット６については、図２及び図３において
詳細に説明する。The pressing roller unit 6 presses the sheet material conveyed by the first conveying roller 4 against the above-mentioned tool horn 5a by the pressing roller 6a.
The pressure roller 6a includes a pressure roller 6a and a pressure roller driving device (not shown) that drives the pressure roller 6a to rotate in response to the sheet material feeding operation of the first transport roller 4. The pressing roller unit 6 moves on the second rail member 8 arranged from one end to the other end of the beam member 1b installed in parallel with the first transport roller 4 from one end to the other end of the table 1a. It is configured to be possible. That is, the pressing roller unit 6
Is configured to be movable in a direction orthogonal to the transport direction of the sheet material transported by the first transport rollers 4 (parallel to the moving direction of the tool horn unit 5). The pressing roller unit 6 will be described in detail with reference to FIGS. 2 and 3.

【００２８】このように、テーブル１ａに工具ホーンユ
ニット５が配設され、梁部材１ｂに押圧ローラユニット
６が吊設されているので、両ユニット５，６を障害物の
ない空隙とすることができる。よって、２枚のシート材
料を任意の所望の位置で重ね合わせて、両ユニット５，
６の間に搬送することができる。また、両ユニット５，
６は、第１及び第２レール部材７，８上を移動可能に構
成されているので、第１及び第２レール部材７，８によ
る両ユニット５，６の移動範囲において、溶着加工を施
すことができる。従って、テーブル１ａ及び梁部材１ｂ
の幅に対して溶着加工を施す位置を広範囲に設定するこ
とができるので、大幅のシート材料を省スペースで加工
することができる。As described above, since the tool horn unit 5 is arranged on the table 1a and the pressing roller unit 6 is suspended on the beam member 1b, both units 5 and 6 can be formed as a space without obstacles. it can. Therefore, the two sheet materials are superposed on each other at any desired position,
It can be transported between six. In addition, both units 5,
Since 6 is configured to be movable on the first and second rail members 7 and 8, welding processing is performed in the moving range of both units 5 and 6 by the first and second rail members 7 and 8. You can Therefore, the table 1a and the beam member 1b
Since the position where the welding process is performed can be set in a wide range with respect to the width of, the large sheet material can be processed in a small space.

【００２９】なお、本実施例とは逆に、工具ホーンユニ
ット５を梁部材１ｂに設けられた第２レール部材８上
を、押圧ローラユニット６をテーブル１ａに設けられた
第１レール部材７上を、それぞれ移動可能に構成しても
良い。Contrary to the present embodiment, the tool horn unit 5 is placed on the second rail member 8 provided on the beam member 1b, and the pressing roller unit 6 is placed on the first rail member 7 provided on the table 1a. May be configured to be movable.

【００３０】超音波溶着装置１の一側面には電源スイッ
チ１６が配設されており、その電源スイッチ１６の上方
であって梁部材１ｂの一側面には、操作パネル１７が配
設されている。操作パネル１７の表面には、液晶ディス
プレイ１７ａと複数のボタン１７ｂとが設けられてお
り、液晶ディスプレイ１７ａの表示に基づいて、これら
複数のボタン１７ｂを操作することにより、超音波溶着
装置１が駆動制御される。A power switch 16 is provided on one side surface of the ultrasonic welding device 1, and an operation panel 17 is provided on the one side surface of the beam member 1b above the power switch 16. . A liquid crystal display 17a and a plurality of buttons 17b are provided on the surface of the operation panel 17, and the ultrasonic welding device 1 is driven by operating the plurality of buttons 17b based on the display on the liquid crystal display 17a. Controlled.

【００３１】第２搬送ローラ９は、工具ホーンユニット
５及び押圧ローラユニット６により溶着加工が施された
シート材料を、該超音波溶着装置１外へ搬送するもので
あり、工具ホーンユニット５及び押圧ローラユニット６
を挟んで、前記した第１搬送ローラ４と平行にシート材
料の搬送方向下流側に配設されている。この第２搬送ロ
ーラ９は、図示しない搬送ローラ駆動装置によって、第
１搬送ローラ４と同期して回転駆動される。この第２搬
送ローラ９の上面には、自由回転可能な送りローラ１５
が、梁部材１ｂのベルト支持部材１ｃ内に設けられた図
示しないバネの付勢力によって押圧されている。よっ
て、第２搬送ローラ９と送りローラ１５との間にシート
材料を挟み込んで、シート材料を搬送することができ
る。The second conveying roller 9 conveys the sheet material welded by the tool horn unit 5 and the pressing roller unit 6 to the outside of the ultrasonic welding device 1, and the tool horn unit 5 and the pressing member are pressed. Roller unit 6
It is arranged on the downstream side in the sheet material conveying direction in parallel with the first conveying roller 4 with the sheet sandwiched therebetween. The second transport roller 9 is rotationally driven in synchronization with the first transport roller 4 by a transport roller driving device (not shown). On the upper surface of the second transport roller 9, a freely rotatable feed roller 15 is provided.
Is pressed by the urging force of a spring (not shown) provided in the belt supporting member 1c of the beam member 1b. Therefore, the sheet material can be conveyed by sandwiching the sheet material between the second conveying roller 9 and the feed roller 15.

【００３２】また、第２搬送ローラ９の上面には、その
第２搬送ローラ９の回転に応じて回転される自由回転可
能な計測ローラ１０ｂが当接されている。計測ローラ１
０ｂは、梁部材１ｂに配設された計測装置１０ａと電気
的に接続されており、計測ローラ１０ｂの回転量が計測
装置１０ａへ伝達され、その伝達された回転量に基づい
てシート材料の搬送長さ、即ち加工長が計測される。計
測されたシート材料の加工長は、操作パネル１７の液晶
ディスプレイ１７ａに表示される。なお、計測ローラ１
０ｂは、必ずしも第２搬送ローラ９に押圧する必要はな
く、例えば、計測ローラ１０ｂを第１搬送ローラ４に押
圧してシート材料の加工長を計測するようにしても良
い。Further, a freely rotatable measuring roller 10b which is rotated according to the rotation of the second transport roller 9 is in contact with the upper surface of the second transport roller 9. Measuring roller 1
0b is electrically connected to the measuring device 10a arranged on the beam member 1b, the rotation amount of the measuring roller 10b is transmitted to the measuring device 10a, and the sheet material is conveyed based on the transmitted rotation amount. The length, that is, the processing length is measured. The measured processing length of the sheet material is displayed on the liquid crystal display 17a of the operation panel 17. The measuring roller 1
0b does not necessarily have to be pressed against the second conveying roller 9, and for example, the measuring length of the sheet material may be measured by pressing the measuring roller 10b against the first conveying roller 4.

【００３３】次に、図２及び図３を参照して、上述した
押圧ローラユニット６について詳細に説明する。図２は
押圧ローラユニット６の内部構成を示した拡大側面図で
あり、図３は押圧ローラ６ａを示した拡大斜視図であ
る。押圧ローラユニット６は、超音波を伝達する工具ホ
ーンユニット５と対峙する位置に配置され、工具ホーン
５ａに対しシート材料を押圧しつつ、移送するためのも
のである。押圧ローラユニット６は、シート材料の重畳
部分の上を転動する押圧ローラ６ａと、その押圧ローラ
６ａを工具ホーン５ａに向けて押圧する押圧機構５０
と、その押圧機構５０によって工具ホーン５ａに向けて
押圧されている押圧ローラ６ａを工具ホーン５ａから引
き離すためのレバー５１と、前記押圧機構５０によって
押圧される押圧ローラ５ａの押圧力を調節するために、
押圧ローラ６ａと工具ホーン５ａとの間に間隙を形成す
る隙間形成機構５２とによって構成されている。Next, the above-mentioned pressing roller unit 6 will be described in detail with reference to FIGS. 2 and 3. 2 is an enlarged side view showing the internal structure of the pressing roller unit 6, and FIG. 3 is an enlarged perspective view showing the pressing roller 6a. The pressing roller unit 6 is arranged at a position facing the tool horn unit 5 that transmits ultrasonic waves, and is for pressing and transferring the sheet material against the tool horn 5a. The pressing roller unit 6 includes a pressing roller 6a that rolls on the overlapping portion of the sheet material and a pressing mechanism 50 that presses the pressing roller 6a toward the tool horn 5a.
And a lever 51 for separating the pressing roller 6a pressed toward the tool horn 5a by the pressing mechanism 50 from the tool horn 5a, and for adjusting the pressing force of the pressing roller 5a pressed by the pressing mechanism 50. To
It is configured by a gap forming mechanism 52 that forms a gap between the pressing roller 6a and the tool horn 5a.

【００３４】押圧ローラ６ａは、略コの字型に形成され
た押圧ローラ支持体５３に回転可能に軸支されている。
具体的には、図３に示すように、円筒状の外周面にシー
ト材料に接触する突部５４ａを有し、並列に並べられた
２つの転動体５４と、その並列に並べられた２つの転動
体５４の間に形成された溝部５５とによって構成されて
いる。転動体５４はシート材料の重畳部分の上を転動
し、突部５４ａにおいてシート材料の重畳部分を溶着し
てゆく。この際、シート材料上の所定方向に沿って形成
された糸目５６は、２つの転動体５４の間に形成された
溝５５を通過してゆく。よって、転動体５４の突部５４
ａが糸目５６に接触することはなく、突部５４ａによっ
て糸目５６が溶断されることを防止することができる。The pressing roller 6a is rotatably supported by a pressing roller support body 53 formed in a substantially U shape.
Specifically, as shown in FIG. 3, there are two rolling elements 54 arranged in parallel and two rolling elements 54 arranged in parallel, each having a protrusion 54a that contacts the sheet material on the cylindrical outer peripheral surface. The groove 55 is formed between the rolling elements 54. The rolling element 54 rolls on the overlapping portion of the sheet material, and the protruding portion 54a welds the overlapping portion of the sheet material. At this time, the thread 56 formed along the predetermined direction on the sheet material passes through the groove 55 formed between the two rolling elements 54. Therefore, the protrusion 54 of the rolling element 54
The a does not come into contact with the thread 56, and it is possible to prevent the thread 56 from being melted by the protrusion 54a.

【００３５】押圧ローラ６ａを押圧する押圧機構５０
は、一端が押圧ローラ支持体５３に連結されたシャフト
５７と、そのシャフト５７の他端側を収納する収納ケー
ス５８と、その収納ケース５８に収納されるシャフト５
７に固着された固着部材５９と、その固着部材５９に当
接して工具ホーン５ａに向けて固着部材５９を押圧する
コイルバネ６０とによって構成されている。Pressing mechanism 50 for pressing the pressing roller 6a
Includes a shaft 57 having one end connected to the pressing roller support body 53, a storage case 58 for storing the other end side of the shaft 57, and the shaft 5 stored in the storage case 58.
7 and a coil spring 60 that abuts on the fixing member 59 and presses the fixing member 59 toward the tool horn 5a.

【００３６】シャフト５７は、押圧ローラ６ａを支持す
るためのものであり、棒状に形成されている。その一端
は押圧ローラ支持体５３に連結され、他端は収納ケース
５８の上方において解放されている。その収納ケース５
８に収納されたシャフト５７の途中に固着された固着部
材５９は、コイルバネ６０の一端を着座させるためのも
のである。固着部材５９は、２つの部材から構成されて
おり、その２つの部材によってシャフト５７を挟み込
み、シャフト５７を挟み込んだ状態で締結具６１，６２
によって締結されている。固着部材５９に着座させるコ
イルバネ６０は、押圧ローラ６ａを工具ホーン５ａに向
けて押圧するためのものである。コイルバネ６０は、シ
ャフト５７の他端側に挿嵌されており、一端は固着部材
５９に着座して、固着部材５９を工具ホーン５ａに向け
て押圧している。The shaft 57 is for supporting the pressing roller 6a and is formed in a rod shape. One end thereof is connected to the pressing roller support body 53, and the other end is opened above the storage case 58. Its storage case 5
The fixing member 59 fixed in the middle of the shaft 57 housed in the housing 8 serves to seat one end of the coil spring 60. The fixing member 59 is composed of two members. The shaft 57 is sandwiched between the two members, and the fasteners 61 and 62 are sandwiched with the shaft 57 sandwiched.
Has been concluded by. The coil spring 60 seated on the fixing member 59 is for pressing the pressing roller 6a toward the tool horn 5a. The coil spring 60 is inserted into the other end of the shaft 57, one end of which is seated on the fixing member 59, and the fixing member 59 is pressed toward the tool horn 5a.

【００３７】このように、コイルバネ６０がシャフト５
７に固着された固着部材５９を工具ホーン５ａに向けて
押圧しているので、ローラ支持体５３を介してシャフト
５７と連結されている押圧ローラ６ａは、押圧ローラ６
ａと工具ホーン５ａとの間に挟まれたシート材料を押圧
しつつ、移送することができる。In this way, the coil spring 60 is connected to the shaft 5
Since the fixing member 59 fixed to 7 is pressed toward the tool horn 5a, the pressing roller 6a connected to the shaft 57 via the roller support 53 is the pressing roller 6a.
The sheet material sandwiched between a and the tool horn 5a can be transferred while being pressed.

【００３８】レバー５１は、押圧機構５０によって工具
ホーン５ａに向けて押圧されている押圧ローラ６ａを工
具ホーン５ａから引き離すためのものである。レバー５
１の一端には固着部材５９と締結具６２との間に挟まれ
たベアリング６３に当接するカム部材６４が連結されて
いる。レバー５１に対し矢印Ａ方向に力を加えると、カ
ム部材６４は起立してゆき、コイルバネ６０の押圧力に
逆らって、カム部材６４に当接するベアリング６５は固
着部材５９と共に矢印Ｂ方向に移動する。即ち、固着部
材５９が矢印Ｂ方向に移動することによって、押圧ロー
ラ６ａも同様に矢印Ｂ方向に移動して、押圧ローラ６ａ
は工具ホーン５ａから引き離される。こうして、押圧ロ
ーラ６ａと工具ホーン５ａとの間に溶着するシート材料
を容易に挿入することができる。The lever 51 is for separating the pressing roller 6a pressed toward the tool horn 5a by the pressing mechanism 50 from the tool horn 5a. Lever 5
A cam member 64 abutting on a bearing 63 sandwiched between a fixing member 59 and a fastener 62 is connected to one end of 1. When a force is applied to the lever 51 in the direction of arrow A, the cam member 64 stands up, and the bearing 65 abutting against the cam member 64 moves in the direction of arrow B together with the fixing member 59 against the pressing force of the coil spring 60. . That is, when the fixing member 59 moves in the direction of arrow B, the pressing roller 6a also moves in the direction of arrow B, and the pressing roller 6a moves.
Is separated from the tool horn 5a. In this way, the sheet material to be welded can be easily inserted between the pressing roller 6a and the tool horn 5a.

【００３９】間隙形成機構５２は、押圧機構５０によっ
て押圧される押圧ローラ５ａの押圧力を調節するための
ものである。間隙形成機構５２は収納ケース５８に載置
された架台６６と、その架台６６に螺着された支持ボル
ト６７とによって構成されている。架台６６は矢印Ｃ方
向視においてゲート状に形成されており、固着部材５９
に対峙するように収納ケースの底壁５８ａに載置されて
いる。支持ボルト６７は架台６６の天井壁に螺着されて
おり、コイルバネ６０に押圧される固着部材５９に、そ
の一端を接触させて固着部材５９を支持するためのもの
である。The gap forming mechanism 52 is for adjusting the pressing force of the pressing roller 5a pressed by the pressing mechanism 50. The gap forming mechanism 52 is composed of a frame 66 mounted on the storage case 58 and a support bolt 67 screwed to the frame 66. The gantry 66 is formed in a gate shape when viewed from the direction of the arrow C, and has a fixing member 59.
It is placed on the bottom wall 58a of the storage case so as to confront it. The support bolt 67 is screwed to the ceiling wall of the pedestal 66, and is for supporting one end of the fixing member 59 pressed by the coil spring 60 by contacting the fixing member 59.

【００４０】ここで、間隙形成機構５２によって押圧ロ
ーラ６ａと工具ホーン５ａとの間に間隙を形成させる場
合について説明する。これは実際にシート材料を溶着加
工する前に行われるものである。上述したのと同様にレ
バー５１に対し矢印Ａ方向に力を加え、押圧ローラ６ａ
を工具ホーン５ａから引き離す。その状態で所望の厚さ
に形成した平板６８を押圧ローラ６ａと工具ホーン５ａ
との間に挿入した後、レバー５１に加えられている力を
除去して、平板６８を押圧ローラ６ａと工具ホーン５ａ
とによって挟持させる。Here, a case where a gap is formed between the pressing roller 6a and the tool horn 5a by the gap forming mechanism 52 will be described. This is done before actually welding the sheet material. In the same manner as described above, a force is applied to the lever 51 in the direction of the arrow A to press the pressing roller 6a.
Is separated from the tool horn 5a. In that state, the flat plate 68 having a desired thickness is attached to the pressing roller 6a and the tool horn 5a.
Then, the force applied to the lever 51 is removed, and the flat plate 68 is attached to the pressing roller 6a and the tool horn 5a.
It is clamped by and.

【００４１】この状態において、固着部材５９は図２の
２点鎖線の位置に配置されることになる。かかる位置に
ある固着部材５９に接触するように支持ボルト６７を移
動させる。支持ボルト６７の一端が固着部材５９に接触
すると、再度レバー５１に対して矢印Ａ方向の力を加
え、押圧ローラ６ａを工具ホーン５ａから引き離し、押
圧ローラ６ａと工具ホーン５ａとに挟持されている平板
６８が引き抜かれる。こうしてレバー５１にかかけた力
を除去した場合であっても、固着部材５９がコイルバネ
６０によって工具ホーン５ａに向けて受ける押圧力は、
収納ケースの底壁５８ａに載置された架台６６と、その
架台６６に螺着され、且つ、その一端が固着部材５９に
接触している支持ボルト６７とによって吸収される。よ
って、押圧ローラ６ａと工具ホーン５ａとの間には依然
として平板６８の厚みと略等しい間隙が形成されてい
る。従って、押圧ローラ６ａと工具ホーン５ａとの間に
挟みこまれるシート材料に対する押圧ローラ６ａの押圧
力を軽減することができる。In this state, the fixing member 59 is arranged at the position indicated by the chain double-dashed line in FIG. The support bolt 67 is moved so as to come into contact with the fixing member 59 at this position. When one end of the support bolt 67 comes into contact with the fixing member 59, a force in the direction of arrow A is again applied to the lever 51 to separate the pressing roller 6a from the tool horn 5a, and the pressing roller 6a is sandwiched between the pressing roller 6a and the tool horn 5a. The flat plate 68 is pulled out. Even when the force applied to the lever 51 is removed in this way, the pressing force that the fixing member 59 receives by the coil spring 60 toward the tool horn 5a is
It is absorbed by the frame 66 placed on the bottom wall 58a of the storage case and the support bolt 67 screwed to the frame 66 and having one end in contact with the fixing member 59. Therefore, a gap substantially equal to the thickness of the flat plate 68 is formed between the pressing roller 6a and the tool horn 5a. Therefore, the pressing force of the pressing roller 6a with respect to the sheet material sandwiched between the pressing roller 6a and the tool horn 5a can be reduced.

【００４２】具体的には、レバー５１に力を加えていな
い状態において、コイルバネ６０の押圧力がポリ塩化ビ
ニルで構成されたシート材料を溶着するために適した押
圧力に設定されている場合において、カーボンを含むポ
リエチレンで構成さたシート材料を溶着する場合、押圧
ローラ６ａと工具ホーン５ａとの間隙をシート材料の重
畳部分の厚さの略１０パーセントから略５０パーセント
の範囲に形成する。好ましくは押圧ローラ６ａと工具ホ
ーン５ａとの間隙をシート材料の重畳部分の厚さの略３
０パーセントに形成する。かかる場合には、ポリ塩化ビ
ニルで構成されたシート材料に比較して、耐熱性に劣る
カーボンを含むポリエチレンで構成されたシート材料を
溶着する場合であっても、押圧ローラ６ａの押圧力は形
成された間隙によって弱められているので、押圧力が強
すぎてシート材料が溶断されたり、溶着部が弱くなると
いうことを防止でき、確実に両シート材料を溶着するこ
とができる。Specifically, when the pressing force of the coil spring 60 is set to a pressing force suitable for welding the sheet material made of polyvinyl chloride in a state where no force is applied to the lever 51, When welding a sheet material made of polyethylene containing carbon, the gap between the pressing roller 6a and the tool horn 5a is formed in the range of approximately 10% to approximately 50% of the thickness of the overlapping portion of the sheet material. Preferably, the gap between the pressing roller 6a and the tool horn 5a is set to about 3 of the thickness of the overlapping portion of the sheet material.
Form to 0 percent. In such a case, the pressing force of the pressing roller 6a is formed even if the sheet material made of polyethylene containing carbon, which is inferior in heat resistance to the sheet material made of polyvinyl chloride, is welded. Since it is weakened by the gap formed, it is possible to prevent the sheet material from being melted and the welded portion weakened due to the excessive pressing force, and it is possible to reliably weld both sheet materials.

【００４３】また、上述したのと同様な状況において、
アルミを含むポリエチレンで構成さたシート材料を溶着
する場合、押圧ローラ６ａと工具ホーン５ａとの間隙を
シート材料の重畳部分の厚さの略５パーセントから略３
５パーセントの範囲に形成する。好ましくは押圧ローラ
６ａと工具ホーン５ａとの間隙をシート材料の重畳部分
の厚さの略２０パーセントに形成する。かかる場合に
は、ポリ塩化ビニルで構成されたシート材料に比較し
て、耐熱性に劣るアルミを含むポリエチレンで構成され
たシート材料を溶着する場合であっても、押圧ローラ６
ａの押圧力は間隙によって弱められているので、押圧力
が強すぎてシート材料が溶断されたり、溶着部が弱くな
るということを防止でき、確実に両シート材料を溶着す
ることができる。In the same situation as described above,
When a sheet material made of polyethylene containing aluminum is welded, the gap between the pressing roller 6a and the tool horn 5a is set to about 5% to about 3% of the thickness of the overlapping portion of the sheet material.
Form in the range of 5 percent. Preferably, the gap between the pressing roller 6a and the tool horn 5a is formed to be approximately 20% of the thickness of the overlapping portion of the sheet material. In such a case, even if a sheet material made of polyethylene containing aluminum, which is inferior in heat resistance to a sheet material made of polyvinyl chloride, is welded, the pressing roller 6
Since the pressing force of "a" is weakened by the gap, it is possible to prevent the sheet material from being melted and the welded portion weakened due to the excessively strong pressing force, and it is possible to reliably weld both sheet materials.

【００４４】尚、押圧ローラ６ａと工具ホーン５ａとの
間に所望の間隙を形成するために、上述したような平板
６８を利用する代わりに、直接、架台６６に螺着された
支持ボルト６７を所定位置まで締め上げ、その端部を固
着部材５９に接触させて、固着部材５９に付勢されるコ
イルバネ６０の押圧力を規制するように構成しても良
い。また、所望の高さにおいて固着部材５９と接触させ
るべく、予め所定の高さに加工された架台を収納ケース
の底壁５８ａに載置したり、固着するように構成しても
良い。In order to form a desired gap between the pressing roller 6a and the tool horn 5a, instead of using the flat plate 68 as described above, the support bolt 67 screwed directly to the mount 66 is used. It may be configured to tighten up to a predetermined position and bring the end thereof into contact with the fixing member 59 to regulate the pressing force of the coil spring 60 urged by the fixing member 59. Further, in order to make contact with the fixing member 59 at a desired height, a pedestal previously processed to have a predetermined height may be mounted on or fixed to the bottom wall 58a of the storage case.

【００４５】次に、ポリエチレンで構成されたシート材
料を溶着加工するために、その前処理として、上述した
ような押圧ローラ６ａと工具ホーン５ａとの間に間隙が
形成された超音波溶着装置１におけるシート材料の溶着
加工動作について説明する。まず、電源スイッチ１６が
オンされると、超音波溶着装置１の各部に電源が供給さ
れ、動作可能な状態となる。溶着加工に先立って、第１
巻回ローラ３ａを一方のローラ支持部材１２に挿入し、
第２巻回ローラ３ｂを他方のローラ支持部材１２に挿入
する。第１及び第２巻回ローラ３ａ，３ｂの下側からそ
れぞれシート材料を引っぱり出し、所望の重畳分を設け
て、第１搬送ローラ４及びベルト１４間、工具ホーン５
ａ及び押圧ローラ６ａ間、第２搬送ローラ９並びに送り
ローラ１５及び計測ローラ１０ｂ間へ通す。第１搬送ロ
ーラ４並びに第１及び第２巻回ローラ３ａ，３ｂには、
一端に錘１３が取着されたベルト１４がかけ渡されてお
り、また、第２搬送ローラ９の上面には、送りローラ１
５がバネにより付勢されて押圧されているので、シート
材料は第１及び第２巻回ローラ３ａ，３ｂ並びに第２搬
送ローラ９間に張設される。Next, in order to perform a welding process on the sheet material made of polyethylene, as a pretreatment, an ultrasonic welding device 1 in which a gap is formed between the pressing roller 6a and the tool horn 5a as described above. The welding processing operation of the sheet material will be described. First, when the power switch 16 is turned on, power is supplied to each part of the ultrasonic welding device 1 to bring it into an operable state. Prior to welding
Insert the winding roller 3a into one roller support member 12,
The second winding roller 3b is inserted into the other roller support member 12. The sheet material is pulled out from the lower side of each of the first and second winding rollers 3a and 3b, and a desired overlapping portion is provided between the first conveying roller 4 and the belt 14 and the tool horn 5.
a between the pressure roller 6a and the second conveying roller 9, the feeding roller 15 and the measuring roller 10b. The first transport roller 4 and the first and second winding rollers 3a and 3b are
A belt 14 having a weight 13 attached to one end is spanned, and the upper surface of the second transport roller 9 has a feed roller 1
Since 5 is biased and pressed by the spring, the sheet material is stretched between the first and second winding rollers 3a and 3b and the second transport roller 9.

【００４６】次に、操作パネル１７を操作して、工具ホ
ーンユニット５及び押圧ローラユニット６を重畳部のあ
る溶着加工位置へ移動する。尚、かかる工具ホーンユニ
ット５及び押圧ローラユニット６の移動は、シート材料
を第１及び第２搬送ローラ４，９間に張設する前に行う
ようにしても良い。Next, the operation panel 17 is operated to move the tool horn unit 5 and the pressing roller unit 6 to the welding position where the overlapping portion exists. The tool horn unit 5 and the pressing roller unit 6 may be moved before the sheet material is stretched between the first and second conveying rollers 4 and 9.

【００４７】更に、操作パネル１７を操作して、搬送ロ
ーラ駆動モータの印加電圧を調整し、第１及び第２搬送
ローラ４，９の駆動速度を設定すると共に、シート材料
の加工長を設定する。本実施例の超音波溶着溶断装置１
においては、操作パネル１７で設定された加工長の加工
がシート材料に施されると、溶着加工が自動停止するよ
うにされている。なお、加工長の設定は、加工誤差の入
力をも可能になっており、溶着加工の自動停止は、かか
る加工誤差を加味してなされる。即ち、加工誤差が＋５
％に設定されている場合には、設定値＋５％の加工長に
達すると溶着加工が自動停止するのである。なお、加工
長の設定は必ずしも必要ではない。加工長の設定がなさ
れない場合には、自動停止は行われない。Further, the operation panel 17 is operated to adjust the applied voltage of the conveying roller drive motor to set the driving speed of the first and second conveying rollers 4 and 9 and the processing length of the sheet material. . Ultrasonic welding and fusing apparatus 1 of this embodiment
In (1), when the processing of the processing length set on the operation panel 17 is performed on the sheet material, the welding processing is automatically stopped. Note that the processing length can be set by inputting a processing error, and the automatic welding process is stopped in consideration of the processing error. That is, the processing error is +5
When it is set to%, the welding process is automatically stopped when the processing length of the set value + 5% is reached. It is not always necessary to set the processing length. If the processing length is not set, automatic stop will not be performed.

【００４８】かかる状態で操作パネル１７のスタートボ
タンが操作されると、第１及び第２搬送ローラ４，９が
同期して回転駆動されると共に、工具ホーンユニット５
及び押圧ローラユニット６が駆動して、２枚のシート材
料重畳部分に溶着加工が施される。シート材料の搬送に
伴って、第２搬送ローラ９に当接される計測ローラ１０
ｂが回転し、その回転量が計測装置１０ａへ伝達され
る。計測装置１０ａは、かかる計測ローラ１０ｂの回転
量に基づいて、シート材料の加工長を算出し、操作パネ
ル１７の液晶ディスプレイ１７ａへ表示する。かかる加
工長が、加工開始前に設定された設定値に達すると、第
１及び第２搬送ローラ４，９並びに工具ホーンユニット
５及び押圧ローラユニット６の駆動が停止され、溶着加
工が終了する。溶着加工の終了後は、２枚のシート材料
を、この超音波溶着装置１から取り除いて、溶着加工を
終了する。なお、この超音波溶着装置１は、シート材料
を溶断する溶断装置として利用することもできる。When the start button of the operation panel 17 is operated in such a state, the first and second transport rollers 4 and 9 are synchronously driven to rotate, and the tool horn unit 5 is also operated.
Also, the pressing roller unit 6 is driven to perform the welding process on the two sheet material overlapping portions. The measurement roller 10 that comes into contact with the second transport roller 9 as the sheet material is transported.
b rotates, and the rotation amount is transmitted to the measuring device 10a. The measuring device 10a calculates the processing length of the sheet material based on the rotation amount of the measuring roller 10b and displays it on the liquid crystal display 17a of the operation panel 17. When the processing length reaches the set value set before the start of processing, the driving of the first and second conveying rollers 4, 9 and the tool horn unit 5 and the pressing roller unit 6 is stopped, and the welding processing is completed. After completion of the welding process, the two sheet materials are removed from the ultrasonic welding device 1 to complete the welding process. The ultrasonic welding device 1 can also be used as a fusing device for fusing sheet material.

【００４９】次に、図４を参照して上述した押圧ローラ
ユニット６における間隙形成機構５２の第２実施例につ
いて説明する。図４は押圧ローラユニット６の内部構成
を示した拡大側面図である。尚、上述したのと同様な構
成については同様の符号を付し、その説明は省略する。
また、レバー５１の一端に連結されているカム部材６４
は図示を省略してあるが、上述したのと同様にベアリン
グ６５に当接して固着部材５９を押しあげるように作用
する。Next, a second embodiment of the gap forming mechanism 52 in the pressing roller unit 6 described above will be described with reference to FIG. FIG. 4 is an enlarged side view showing the internal structure of the pressing roller unit 6. The same components as those described above are designated by the same reference numerals, and the description thereof will be omitted.
In addition, the cam member 64 connected to one end of the lever 51
Although not shown in the figure, it acts to abut the bearing 65 and push up the fixing member 59 in the same manner as described above.

【００５０】第２実施例における間隙形成機構７２は、
第１実施例における間隙形成機構５２と同様に、押圧機
構５０によって押圧される押圧ローラ５ａの押圧力を調
節するためのものである。間隙形成機構７２は収納ケー
スの底壁５８ａに載置される立壁７０と、その立壁７０
と固着部材５９とを締結する締結具６２とによって構成
されている。立壁７０は、略平板状に形成されており、
その内側には小判状に形成された長穴７１が穿設されて
いる。締結具６２は立壁７０を固着部材５９に固着させ
るためのものである。締結具６２は立壁７０に穿設され
た長穴を介して立壁７０と固着部材６１とを締結する。The gap forming mechanism 72 in the second embodiment is
Similar to the gap forming mechanism 52 in the first embodiment, it is for adjusting the pressing force of the pressing roller 5a pressed by the pressing mechanism 50. The gap forming mechanism 72 includes a standing wall 70 placed on the bottom wall 58a of the storage case, and the standing wall 70.
And a fastener 62 that fastens the fixing member 59. The standing wall 70 is formed in a substantially flat plate shape,
An elongated hole 71 formed in an oval shape is bored inside thereof. The fastener 62 is for fixing the standing wall 70 to the fixing member 59. The fastener 62 fastens the standing wall 70 and the fixing member 61 through an elongated hole formed in the standing wall 70.

【００５１】ここで、間隙形成機構７２によって押圧ロ
ーラ６ａと工具ホーン５ａとの間に間隙を形成させる場
合について説明する。上述したのと同様にレバー５１に
対し矢印Ａ方向に力を加え、押圧ローラ６ａを工具ホー
ン５ａから引き離す。その状態で所望の厚さに形成した
平板６８を押圧ローラ６ａと工具ホーン５ａとの間に挿
入した後、レバー５１に加えられている力を除去して、
平板６８を押圧ローラ６ａと工具ホーン５ａとによって
挟持させる。Here, a case where a gap is formed between the pressing roller 6a and the tool horn 5a by the gap forming mechanism 72 will be described. In the same manner as described above, a force is applied to the lever 51 in the arrow A direction to separate the pressing roller 6a from the tool horn 5a. In that state, a flat plate 68 having a desired thickness is inserted between the pressing roller 6a and the tool horn 5a, and then the force applied to the lever 51 is removed.
The flat plate 68 is held between the pressing roller 6a and the tool horn 5a.

【００５２】この状態において、固着部材５９は図４の
２点鎖線の位置に配置されることになる。かかる位置に
おいて固着部材５９を固定するために、立壁７０を収納
ケースの底壁５８ａに立設させ、立設した立壁７０に穿
設されている長穴７１と固着部材５９とが合致する位置
で締結具６２によって立壁７０を固着部材５９に締結す
る。立壁７０が固着部材５９に固着されると、再度レバ
ー５１に対して矢印Ａ方向の力を加え、押圧ローラ６ａ
を工具ホーン５ａから引き離し、押圧ローラ６ａと工具
ホーン５ａとに挟持されている平板６８を引き抜く。In this state, the fixing member 59 is arranged at the position indicated by the chain double-dashed line in FIG. In order to fix the fixing member 59 at such a position, the standing wall 70 is erected on the bottom wall 58a of the storage case, and the fixing member 59 is aligned with the elongated hole 71 formed in the standing standing wall 70. The standing wall 70 is fastened to the fixing member 59 by the fastener 62. When the standing wall 70 is fixed to the fixing member 59, a force in the direction of arrow A is applied to the lever 51 again, and the pressing roller 6a is pressed.
Is separated from the tool horn 5a, and the flat plate 68 sandwiched between the pressing roller 6a and the tool horn 5a is extracted.

【００５３】こうしてレバー５１にかけた力を除去した
場合であっても、固着部材５９がコイルバネ６０によっ
て工具ホーン５ａに向けて受ける押圧力は、収納ケース
の底壁５８ａに載置され、且つ、固着部材５９に固着さ
れた立壁７０によって吸収される。よって、押圧ローラ
６ａと工具ホーン５ａとの間には依然として平板６８の
厚みと略等しい間隔が形成される。従って、押圧ローラ
６ａと工具ホーン５ａとの間に挟みこまれるシート材料
に対する押圧ローラ６ａの押圧力を軽減することがで
き、耐熱性に劣るシート材料であっても確実に溶着する
ことができる。尚、具体的なシート材料と形成する間隔
との関係は上述したのと同様の関係にすることが好まし
い。Even when the force applied to the lever 51 is removed in this way, the pressing force received by the fixing member 59 toward the tool horn 5a by the coil spring 60 is placed on the bottom wall 58a of the storage case and fixed. It is absorbed by the standing wall 70 fixed to the member 59. Therefore, a space substantially equal to the thickness of the flat plate 68 is formed between the pressing roller 6a and the tool horn 5a. Therefore, the pressing force of the pressing roller 6a against the sheet material sandwiched between the pressing roller 6a and the tool horn 5a can be reduced, and even a sheet material having poor heat resistance can be reliably welded. The relationship between the specific sheet material and the forming interval is preferably the same as described above.

【００５４】以上、実施例に基づき本発明を説明した
が、本発明は上記実施例に何ら限定されるものではな
く、本発明の趣旨を逸脱しない範囲内で種々の改良変形
が可能であることは容易に推察できるものである。The present invention has been described above based on the embodiments, but the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. Is easily guessed.

【００５５】上記実施例においては、ローラ式の超音波
溶着装置１について、間隙形成機構５２，７２を設ける
場合について説明したが、かかる間隙形成機構５２，７
２を設ける超音波溶着装置としてはかかるローラ式のも
のに限られず、ウェルダ式のものに設けても良いことは
言うまでもない。In the above embodiment, the case where the gap forming mechanisms 52 and 72 are provided in the roller type ultrasonic welding apparatus 1 has been described, but the gap forming mechanisms 52 and 7 are described.
Needless to say, the ultrasonic welding device provided with 2 is not limited to the roller type, and may be provided in the welder type.

【００５６】[0056]

【発明の効果】 請求項１記載の超音波溶着装置によれ
ば、工具ホーンと押圧ローラとの間には、間隙形成機構
によって所定の間隙が形成されおり、シート材料に対す
る押圧ローラの押圧力は抑制されている。よって、耐熱
性に劣るシート材料であっても押圧ローラの押圧力が強
すぎるために、溶着部が弱くなったり、溶断されてしま
うことを防止することができるという効果がある。According to the ultrasonic welding apparatus of the first aspect, the gap forming mechanism forms a predetermined gap between the tool horn and the pressing roller, and the pressing force of the pressing roller against the sheet material is It is suppressed. Therefore, even if the sheet material is inferior in heat resistance, it is possible to prevent the welding portion from being weakened or melted due to the excessive pressing force of the pressing roller.

【００５７】請求項２記載の超音波溶着装置によれば、
請求項１記載の超音波溶着装置の奏する効果に加え、収
納ケースに載置された架台に螺着された支持部材は、押
圧部材の押圧方向に逆らった状態にある固着部材に接触
し、固着部材に付勢される押圧力を吸収する。よって押
圧部材の押圧力は押圧ローラには伝達されず、シート材
料に対する押圧ローラの押圧力を低減することができる
という効果がある。According to the ultrasonic welding device of the second aspect,
In addition to the effect of the ultrasonic welding device according to claim 1, the support member screwed to the pedestal mounted on the storage case comes into contact with and is fixed to the fixing member that is in a state opposite to the pressing direction of the pressing member. The pressing force applied to the member is absorbed. Therefore, the pressing force of the pressing member is not transmitted to the pressing roller, and the pressing force of the pressing roller with respect to the sheet material can be reduced.

【００５８】請求項３記載の超音波溶着溶断装置によれ
ば、請求項２記載の超音波溶着装置の奏する効果に加
え、支持部材はシャフトと平行な方向に往復移動して固
着部材を支持する。よって、固着部材を支持する位置を
支持部材の移動範囲において調節することができる。従
って、溶着するシート材料の素材に応じて押圧ローラの
押圧力を調節することができるという効果がある。According to the ultrasonic welding device of claim 3, in addition to the effect of the ultrasonic welding device of claim 2, the supporting member reciprocates in the direction parallel to the shaft to support the fixing member. . Therefore, the position for supporting the fixing member can be adjusted within the moving range of the supporting member. Therefore, there is an effect that the pressing force of the pressing roller can be adjusted according to the material of the sheet material to be welded.

【００５９】請求項４記載の超音波溶着溶断装置によれ
ば、請求項１記載の超音波溶着装置の奏する効果に加
え、締結具は押圧部材の押圧方向に逆らった状態にある
固着部材と収納ケースに立設された立壁とを締結する。
よって押圧部材の押圧力は押圧ローラには伝達されず立
壁に吸収され、シート材料に対する押圧ローラの押圧力
を低減することができるという効果がある。According to the ultrasonic welding device of claim 4, in addition to the effect of the ultrasonic welding device of claim 1, the fastener is housed together with the fixing member in a state of being opposed to the pressing direction of the pressing member. Fasten the wall to the case.
Therefore, the pressing force of the pressing member is not transmitted to the pressing roller and is absorbed by the standing wall, and the pressing force of the pressing roller with respect to the sheet material can be reduced.

【００６０】請求項５記載の超音波溶着溶断装置によれ
ば、請求項４記載の超音波溶着装置の奏する効果に加
え、締結部材は立壁に穿設された小判状の長穴のいずれ
かの位置において固着部材と立壁とを締結する。よっ
て、固着部材を支持する位置を小判状の長穴のいずれか
の位置において調節することができる。従って、溶着す
るシート材料の素材に応じて押圧ローラの押圧力を調節
することができるという効果がある。According to the ultrasonic welding device of the fifth aspect, in addition to the effect of the ultrasonic welding device of the fourth aspect, the fastening member is one of oval-shaped elongated holes formed in the standing wall. The fixing member and the standing wall are fastened at the position. Therefore, the position for supporting the fixing member can be adjusted at any position of the oblong slot. Therefore, there is an effect that the pressing force of the pressing roller can be adjusted according to the material of the sheet material to be welded.

【００６１】請求項６記載の超音波溶着溶断装置によれ
ば、請求項１から５のいずれかに記載の超音波溶着装置
の奏する効果に加え、隙間形成機構は工具ホーンと押圧
ローラとの間隙をカーボンを含むポリエチレンで構成さ
れたシート材料の重畳部分の略１０パーセントから略５
０パーセントの範囲に形成する。よって、ポリ塩化ビニ
ルで構成されたシート材料に比べ耐熱性に劣るカーボン
を含むポリエチレンで構成されたシート材料を確実に溶
着することができるという効果がある。According to the ultrasonic welding apparatus of claim 6, in addition to the effect of the ultrasonic welding apparatus of any one of claims 1 to 5, the gap forming mechanism has a gap between the tool horn and the pressing roller. Is approximately 10% to approximately 5 of the overlapping portion of the sheet material composed of polyethylene containing carbon.
Form in the range of 0 percent. Therefore, it is possible to reliably weld the sheet material made of polyethylene containing carbon, which is inferior in heat resistance to the sheet material made of polyvinyl chloride.

【００６２】請求項７記載の超音波溶着溶断装置によれ
ば、請求項６記載の超音波溶着装置の奏する効果に加
え、隙間形成機構は、工具ホーンと押圧ローラとの間隙
をシート材料の重畳部分の略３０パーセントに形成す
る。よって、ポリ塩化ビニルで構成されたシート材料に
比べ耐熱性に劣るカーボンを含むポリエチレンで構成さ
れたシート材料を一層確実に溶着することができるとい
う効果がある。According to the ultrasonic welding device of claim 7, in addition to the effect of the ultrasonic welding device of claim 6, the gap forming mechanism overlaps the gap between the tool horn and the pressing roller with the sheet material. It is formed in approximately 30% of the portion. Therefore, there is an effect that the sheet material made of polyethylene containing carbon, which is inferior in heat resistance to the sheet material made of polyvinyl chloride, can be more reliably welded.

【００６３】請求項８記載の超音波溶着溶断装置によれ
ば、請求項１から５のいずれかに記載の超音波溶着装置
の奏する効果に加え、隙間形成機構は工具ホーンと押圧
ローラとの間隙をアルミを含むポリエチレンで構成され
たシート材料の重畳部分の略５パーセントから略３５パ
ーセントの範囲に形成する。よって、ポリ塩化ビニルで
構成されたシート材料に比べ耐熱性に劣るアルミを含む
ポリエチレンで構成されたシート材料を確実に溶着する
ことができるという効果がある。According to the ultrasonic welding apparatus of claim 8, in addition to the effect of the ultrasonic welding apparatus of any one of claims 1 to 5, the gap forming mechanism has a gap between the tool horn and the pressing roller. Is formed in the range of approximately 5% to approximately 35% of the overlapping portion of the sheet material made of polyethylene containing aluminum. Therefore, there is an effect that the sheet material made of polyethylene containing aluminum, which is inferior in heat resistance to the sheet material made of polyvinyl chloride, can be reliably welded.

【００６４】請求項９記載の超音波溶着溶断装置によれ
ば、請求項８記載の超音波溶着装置の奏する効果に加
え、隙間形成機構は工具ホーンと押圧ローラとの間隙を
シート材料の重畳部分の略２０パーセントに形成する。
よって、ポリ塩化ビニルで構成されたシート材料に比べ
耐熱性に劣るアルミを含むポリエチレンで構成されたシ
ート材料を一層確実に溶着することができるという効果
がある。According to the ultrasonic welding device of claim 9, in addition to the effect of the ultrasonic welding device of claim 8, the gap forming mechanism forms the gap between the tool horn and the pressing roller in the overlapping portion of the sheet material. Of about 20%.
Therefore, there is an effect that the sheet material made of polyethylene containing aluminum, which is inferior in heat resistance to the sheet material made of polyvinyl chloride, can be more reliably welded.

【００６５】請求項１０記載の超音波溶着溶断装置によ
れば、請求項１から９のいずれかに記載の超音波溶着装
置の奏する効果に加え、押圧ローラは、並列に並べられ
た２以上の転動体の間に形成された溝部において、シー
ト材料上において所定方向に延びる糸目を跨ぎつつ、転
動体においてシート材料の重畳部を溶着する。よって、
糸目は転動体によって押圧されることはないので、転動
体によって糸目が溶断されシート材料が解れることを防
止することができるという効果がある。According to the ultrasonic welding apparatus of claim 10, in addition to the effect exhibited by the ultrasonic welding apparatus of any one of claims 1 to 9, the pressing roller has two or more pressure rollers arranged in parallel. In the groove portion formed between the rolling elements, the overlapping portion of the sheet material is welded to the rolling element while straddling the thread extending in the predetermined direction on the sheet material. Therefore,
Since the thread is not pressed by the rolling element, there is an effect that it is possible to prevent the sheet material from being melted and broken by the rolling element.

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

【図１】 本発明の一実施例である超音波溶着装置の斜
視図である。FIG. 1 is a perspective view of an ultrasonic welding device according to an embodiment of the present invention.

【図２】 押圧ローラユニットの内部構成を示した拡大
側面図である。FIG. 2 is an enlarged side view showing an internal configuration of a pressing roller unit.

【図３】 押圧ローラを示した拡大斜視図である。FIG. 3 is an enlarged perspective view showing a pressing roller.

【図４】 第２実施例の間隙形成機構を備えた押圧ロー
ラユニットの内部構成を示した拡大側面図である。FIG. 4 is an enlarged side view showing an internal configuration of a pressing roller unit including a gap forming mechanism of a second embodiment.

【符号の説明】[Explanation of symbols]

１ 超音波溶着装置 ５ａ 工具ホーン ６ａ 押圧ローラ ５１ レバー ５２，７２ 間隙形成機構 ５４ 転動体 ５４ａ 突部 ５５ 溝部 ５７ シャフト ５８ 収納ケース ５９ 固着部材 ６０ コイルバネ（押圧部材） ６２ 締結具 ６６ 架台 ６７ 支持部材（支持ボルト） ７０ 立壁 ７１ 長穴 1 Ultrasonic welding device 5a Tool horn 6a Pressing roller 51 lever 52,72 Gap forming mechanism 54 rolling elements 54a protrusion 55 Groove 57 shaft 58 storage cases 59 Fixing member 60 Coil spring (pressing member) 62 Fastener 66 mount 67 Support member (support bolt) 70 Standing wall 71 slot

Claims (10)

【特許請求の範囲】[Claims] 【請求項１】 超音波を伝達する工具ホーンと、その工
具ホーンに対してシート材料を押圧する押圧ローラとを
有し、前記工具ホーンと押圧ローラとの間に１のシート
材料と他のシート材料とを重ね合わせて挟み込み、両シ
ート材料の重畳部分を溶着加工する超音波溶着装置にお
いて、 前記シート材料に対する前記押圧ローラの押圧力を抑制
するために、前記工具ホーンと前記押圧ローラとの間に
所定の間隙を形成する間隙形成機構を備えていることを
特徴とする超音波溶着装置。1. A tool horn for transmitting ultrasonic waves and a pressing roller for pressing a sheet material against the tool horn, wherein one sheet material and another sheet are provided between the tool horn and the pressing roller. In an ultrasonic welding device that overlaps and sandwiches a material and welds the overlapping portion of both sheet materials, in order to suppress the pressing force of the pressing roller against the sheet material, between the tool horn and the pressing roller An ultrasonic welding device, characterized in that it is provided with a gap forming mechanism for forming a predetermined gap. 【請求項２】 前記押圧ローラと一端が連結されたシャ
フトと、そのシャフトの他端側を収納する収納ケース
と、その収納ケースに収納されるシャフトに固着された
固着部材と、その固着部材に当接して前記工具ホーンに
向けて前記固着部材を押圧する押圧部材とを備え、 前記隙間形成機構は、前記収納ケースに載置された架台
と、 その架台に螺着され、前記固着部材が押圧されている方
向に逆らって、前記固着部材を支持する支持部材とによ
って構成されていることを特徴とする請求項１に記載の
超音波溶着装置。2. A shaft having one end connected to the pressing roller, a storage case for storing the other end of the shaft, a fixing member fixed to the shaft stored in the storage case, and a fixing member for the fixing member. And a pressing member that abuts and presses the fixing member toward the tool horn, wherein the gap forming mechanism is mounted on the mounting case and screwed to the mounting base to press the fixing member. The ultrasonic welding device according to claim 1, wherein the ultrasonic welding device is configured by a supporting member that supports the fixing member in a direction opposite to the direction in which the welding is performed. 【請求項３】 前記支持部材は、前記シャフトと平行な
方向に往復移動して前記固着部材を支持することを特徴
とする請求項２に記載の超音波溶着装置。3. The ultrasonic welding device according to claim 2, wherein the support member reciprocates in a direction parallel to the shaft to support the fixing member. 【請求項４】 前記押圧ローラと一端が連結されたシャ
フトと、そのシャフトの他端側を収納する収納ケース
と、その収納ケースに収納されるシャフトに固着された
固着部材と、その固着部材に当接して前記工具ホーンに
向けて前記固着部材を押圧する押圧部材とを備え、 前記隙間形成機構は、前記収納ケースに立設された立壁
と、 その立壁と前記固着部材とを締結する締結具とによって
構成されていることを特徴とする請求項１に記載の超音
波溶着装置。4. A shaft having one end connected to the pressing roller, a storage case for storing the other end of the shaft, a fixing member fixed to the shaft stored in the storage case, and a fixing member for the fixing member. A pressing member that abuts and presses the fixing member toward the tool horn, wherein the gap forming mechanism fastens a standing wall that is erected in the storage case, and a fastener that fastens the standing wall and the fixing member. The ultrasonic welding device according to claim 1, wherein the ultrasonic welding device is configured by: 【請求項５】 前記立壁には、前記シャフトと平行な方
向に延びる小判状の長穴が穿設されていることを特徴と
する請求項４に記載の超音波溶着装置。5. The ultrasonic welding device according to claim 4, wherein the standing wall is provided with an oval elongated hole extending in a direction parallel to the shaft. 【請求項６】 前記シート材料はカーボンを含むポリエ
チレンで構成されており、 前記隙間形成機構は、前記工具ホーンと押圧ローラとの
間隙を前記シート材料の重畳部分の略１０パーセントか
ら略５０パーセントの範囲に形成することを特徴とする
請求項１から５のいずれかに記載の超音波溶着装置。6. The sheet material is made of polyethylene containing carbon, and the gap forming mechanism sets the gap between the tool horn and the pressing roller to approximately 10% to approximately 50% of the overlapping portion of the sheet material. The ultrasonic welding device according to claim 1, wherein the ultrasonic welding device is formed in a range. 【請求項７】 前記隙間形成機構は、前記工具ホーンと
押圧ローラとの間隙を前記シート材料の重畳部分の略３
０パーセントに形成することを特徴とする請求項６に記
載の超音波溶着装置。7. The gap forming mechanism defines a gap between the tool horn and the pressing roller to be approximately 3 in a portion where the sheet material overlaps.
The ultrasonic welding device according to claim 6, wherein the ultrasonic welding device is formed to 0%. 【請求項８】 前記シート材料はアルミを含むポリエチ
レンで構成されており、 前記隙間形成機構は、前記工具ホーンと押圧ローラとの
間隙を前記シート材料の重畳部分の略５パーセントから
略３５パーセントの範囲に形成することを特徴とする請
求項１から５のいずれかに記載の超音波溶着装置。8. The sheet material is made of polyethylene containing aluminum, and the gap forming mechanism sets the gap between the tool horn and the pressing roller to approximately 5% to approximately 35% of the overlapping portion of the sheet material. The ultrasonic welding device according to claim 1, wherein the ultrasonic welding device is formed in a range. 【請求項９】 前記隙間形成機構は、前記工具ホーンと
押圧ローラとの間隙を前記シート材料の重畳部分の略２
０パーセントに形成することを特徴とする請求項８に記
載の超音波溶着装置。9. The gap forming mechanism sets a gap between the tool horn and the pressing roller to approximately 2 at a portion where the sheet material overlaps.
The ultrasonic welding device according to claim 8, wherein the ultrasonic welding device is formed to 0%. 【請求項１０】 前記シート材料には、所定方向に延び
る糸目が形成されており、 前記押圧ローラは、円筒状の外周面に前記シート材料に
当接する突部を有し並列に並べられた２以上の転動体
と、 その並列に並べられた２以上の転動体の間に形成され、
前記糸目を跨ぐための溝部とを備えていることを特徴と
する請求項１から９のいずれかに記載の超音波溶着装
置。10. A thread extending in a predetermined direction is formed on the sheet material, and the pressing roller has a cylindrical outer peripheral surface having a protrusion that comes into contact with the sheet material and is arranged in parallel. Formed between the above rolling elements and two or more rolling elements arranged in parallel,
The ultrasonic welding device according to any one of claims 1 to 9, further comprising: a groove portion for straddling the yarn thread.
JP2002131203A 2002-05-07 2002-05-07 Ultrasonic welding equipment Expired - Fee Related JP3633910B2 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100851416B1 (en) 2007-12-29 2008-08-08 서옥순 Level measuremaet device of ultrasonic wave welder tool and measurement method to the same
US8999454B2 (en) 2012-03-22 2015-04-07 General Electric Company Device and process for producing a reinforced hollow fibre membrane
US9022229B2 (en) 2012-03-09 2015-05-05 General Electric Company Composite membrane with compatible support filaments
US9221020B2 (en) 2010-09-15 2015-12-29 Bl Technologies, Inc. Method to make yarn-reinforced hollow fiber membranes around a soluble core
US9227362B2 (en) 2012-08-23 2016-01-05 General Electric Company Braid welding
US9321014B2 (en) 2011-12-16 2016-04-26 Bl Technologies, Inc. Hollow fiber membrane with compatible reinforcements
CN106965444A (en) * 2017-04-18 2017-07-21 江苏金由新材料有限公司 The preparation facilities and method of a kind of large-caliber thin-walled PTFE tube
WO2021172503A1 (en) * 2020-02-28 2021-09-02 精電舎電子工業株式会社 Ultrasonic welding device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100851416B1 (en) 2007-12-29 2008-08-08 서옥순 Level measuremaet device of ultrasonic wave welder tool and measurement method to the same
US9221020B2 (en) 2010-09-15 2015-12-29 Bl Technologies, Inc. Method to make yarn-reinforced hollow fiber membranes around a soluble core
US9321014B2 (en) 2011-12-16 2016-04-26 Bl Technologies, Inc. Hollow fiber membrane with compatible reinforcements
US9022229B2 (en) 2012-03-09 2015-05-05 General Electric Company Composite membrane with compatible support filaments
US8999454B2 (en) 2012-03-22 2015-04-07 General Electric Company Device and process for producing a reinforced hollow fibre membrane
US9227362B2 (en) 2012-08-23 2016-01-05 General Electric Company Braid welding
CN106965444A (en) * 2017-04-18 2017-07-21 江苏金由新材料有限公司 The preparation facilities and method of a kind of large-caliber thin-walled PTFE tube
WO2021172503A1 (en) * 2020-02-28 2021-09-02 精電舎電子工業株式会社 Ultrasonic welding device

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