JPH09155979A - Welding method using high-frequency heating and device therefor - Google Patents

Welding method using high-frequency heating and device therefor

Info

Publication number
JPH09155979A
JPH09155979A JP34577695A JP34577695A JPH09155979A JP H09155979 A JPH09155979 A JP H09155979A JP 34577695 A JP34577695 A JP 34577695A JP 34577695 A JP34577695 A JP 34577695A JP H09155979 A JPH09155979 A JP H09155979A
Authority
JP
Japan
Prior art keywords
welding
frequency heating
electrodes
pair
high frequency
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.)
Withdrawn
Application number
JP34577695A
Other languages
Japanese (ja)
Inventor
Michiyuki Seiki
滿行 清木
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.)
IWASAKI SHOJI KK
Meiwa Corp
Original Assignee
IWASAKI SHOJI KK
Meiwa 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 IWASAKI SHOJI KK, Meiwa Corp filed Critical IWASAKI SHOJI KK
Priority to JP34577695A priority Critical patent/JPH09155979A/en
Publication of JPH09155979A publication Critical patent/JPH09155979A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K91/00—Lines
    • A01K91/03—Connecting devices
    • A01K91/047—Connecting devices for connecting lines to lines
    • 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
    • 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
    • B29C66/69—General aspects of joining filaments 
    • 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
    • B29C66/814—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
    • B29C66/81411—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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
    • B29C66/81427—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/81431—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 comprising a single cavity, e.g. a groove
    • 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
    • B29C66/8322—Joining or pressing tools reciprocating along 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow 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
    • B29C66/70—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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/70—Agricultural usage or equipment
    • B29L2031/7002—Agricultural usage or equipment for fishing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method for welding a material of thermoplastic resin and enabling the material to have a sufficient strength after its welding. SOLUTION: An upper metal block 11 of paired upper and lower metal blocks 11, 10 as a pair of electrodes to which a high-frequency voltage is applied is lowered to hold a wire rod 12 of a thermoplastic material placed on the lower metal block 10. In addition, the wire rod part softened by high-frequency heating is prevented from sticking out of a pressure area pressurized by both upper and lower metal blocks with the help of right and left blocks 15, 16, and at the same time, the high-frequency voltage is applied to a space between the upper and lower metal blocks.

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、高周波加熱を用い
た溶着方法及びその装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding method and apparatus using high frequency heating.

【０００２】[0002]

【従来の技術】従来、高周波加熱を用いた溶着方法及び
その装置は種々知られており、処理対象が誘電体の場合
の高周波誘電加熱を用いた溶着と、処理対象が導体の場
合の高周波誘導加熱を用いた溶着とがある。誘電体であ
る例えばプラスチック等の熱可塑性樹脂を高周波電場に
おき、分子間の摩擦熱による内部発熱を利用する高周波
誘電加熱による溶着方法は、プラスチック同士であれれ
ば短時間に溶融溶着を行うことができるので、塩化ビニ
ール、ナイロン等の溶着方法として用いられている。し
かし、熱可塑性ポリウレタンエラストマーからなる素材
の溶着に用いることは考えられていなかった。この熱可
塑性ポリウレタンエラストマーには柔軟性、強度、耐曲
性、耐摩耗性などに優れたものがあり、エンジニアリン
グエラストマー等として広く用いられる可能性がある。2. Description of the Related Art Conventionally, various welding methods and apparatuses using high frequency heating are known, and welding using high frequency dielectric heating when a processing object is a dielectric and high frequency induction when a processing object is a conductor. There is welding using heating. A welding method by high-frequency dielectric heating, in which a thermoplastic resin such as plastic, which is a dielectric, is placed in a high-frequency electric field and internal heat generated by frictional heat between molecules is used, can perform fusion welding in a short time for plastics. Since it can be used, it is used as a welding method for vinyl chloride, nylon and the like. However, it was not considered to be used for welding a material composed of a thermoplastic polyurethane elastomer. Some of the thermoplastic polyurethane elastomers have excellent flexibility, strength, bending resistance, abrasion resistance, etc., and may be widely used as engineering elastomers and the like.

【０００３】[0003]

【発明が解決しようとする課題】ところが、例えば上記
熱可塑性ポリウレタンエラストマーからなる材料の溶着
を行うにあたって、従来の溶着方法及び装置では、溶着
後の強度が不十分な場合が生じていた。本発明は以上の
背景に鑑みなされたものであり、その目的とするところ
は、溶着後に十分な強度を持たせることができる熱可塑
性樹脂からなる材料の溶着方法及びその装置を提供する
ことである。However, for example, when welding a material made of the above-mentioned thermoplastic polyurethane elastomer, the conventional welding method and apparatus sometimes have insufficient strength after welding. The present invention has been made in view of the above background, and an object of the present invention is to provide a welding method and apparatus for a material made of a thermoplastic resin capable of providing sufficient strength after welding. .

【０００４】[0004]

【課題を解決するための手段】上記の目的を達成するた
めに、請求項１の高周波加熱を用いた熱可塑性材料の溶
着方法は、熱可塑性材料を高周波加熱用の一対の電極で
加圧するとともに、高周波加熱で軟化した材料が該一対
の電極による加圧領域からはみ出すのを規制しながら、
該一対の電極間に高周波を印加して溶着を行うことを特
徴とするものである。In order to achieve the above object, a method of welding a thermoplastic material using high frequency heating according to a first aspect of the present invention is such that the thermoplastic material is pressed by a pair of electrodes for high frequency heating. While restricting the material softened by high-frequency heating from protruding from the pressure area by the pair of electrodes,
A high frequency is applied between the pair of electrodes to perform welding.

【０００５】請求項２の高周波加熱を用いた熱可塑性材
料の溶着方法は、請求項１の溶着方法において、上記規
制を断熱材を用いて行うことを特徴とするものである。According to a second aspect of the present invention, there is provided a method for welding a thermoplastic material using high-frequency heating, which is characterized in that the regulation is performed by using a heat insulating material.

【０００６】請求項３の高周波加熱装置は、高周波電圧
が印加される一対の電極と、該一対の電極間に高周波電
圧を印加する電圧印加手段と、該一対の電極間に溶着す
べき熱可塑性材料を介在させた状態で該一対の電極の少
なくとも一方を他方に対して加圧する加圧手段と、高周
波加熱で軟化した材料が該一対の電極による加圧領域か
らはみ出すのを規制する規制手段とを有することを特徴
とするものである。ここで、この規制手段は、上記一対
の電極とは別の部材で構成することが望ましい。According to a third aspect of the high-frequency heating apparatus, a pair of electrodes to which a high-frequency voltage is applied, voltage applying means for applying a high-frequency voltage between the pair of electrodes, and a thermoplastic material to be welded between the pair of electrodes. Pressurizing means for pressurizing at least one of the pair of electrodes against the other while interposing a material, and restricting means for restricting the material softened by high-frequency heating from protruding from the area pressed by the pair of electrodes. It is characterized by having. Here, it is desirable that the regulation means be composed of a member different from the pair of electrodes.

【０００７】請求項４の高周波加熱装置は、請求項３の
高周波加熱装置において、上記規制手段を断熱部材を用
いて構成したことを特徴とするものである。A high frequency heating apparatus according to a fourth aspect of the present invention is the high frequency heating apparatus according to the third aspect, characterized in that the regulating means is constituted by using a heat insulating member.

【０００８】[0008]

【発明の実施の形態】以下、釣り糸用具である熱可塑性
ポリウレタンエラストマーからなる線材の一端に環状部
を形成するため環状に屈曲させた線材の一端部の端を該
線材の途中に溶着するのに本発明を適用した実施の一形
態について説明する。上記熱可塑性ポリウレタンエラス
トマーからなる線材は引っ張りなどの機械的強度に優
れ、かつある程度の弾性を有するため、一端の環状部に
釣り糸を結び、かつ他端の環状部に針糸を結ぶことで、
釣り糸と針糸とを連結する線状釣り用具の材料に適して
いる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, in order to form an annular portion at one end of a wire rod made of a thermoplastic polyurethane elastomer which is a fishing line tool, one end of one end of a wire rod bent in an annular shape is welded in the middle of the wire rod. An embodiment to which the present invention is applied will be described. The wire made of the thermoplastic polyurethane elastomer is excellent in mechanical strength such as pulling, and has elasticity to some extent, so by connecting the fishing line to the annular portion at one end and the needle thread to the annular portion at the other end,
It is suitable as a material for a linear fishing gear that connects a fishing line and a needle thread.

【０００９】図１（ａ）は本実施形態に係る溶着方法を
実施するのに適した高周波加熱装置の主要部を示す斜視
図である。この高周波加熱装置は、一対の電極として、
固定の下金台１０と図示を省略した昇降機によって昇降
可能な上金台１１とを有する。上下金台１１，１０はい
ずれも導体である真鍮からなり、図示を省略した高周波
電源装置に電気接続されている。この上下金台１１，１
０は、それぞれ互いの対向面部に処理対象である線材１
２の外形に応じた半円柱状の凹部１３，１４を備えてい
る。この凹部１３，１４の長手方向の幅は、上記線材１
２の溶着予定長さに対応している。また、この高周波加
熱装置は、上記上下金台１１，１０で加圧しながら加熱
軟化された線材部分が上下金台１１，１０による加圧領
域に相当する凹部１３，１４間から幅方向外側にはみ出
すのを規制する規制部材としての左右ブロック（図中、
二点鎖線で示す。）１５，１６と、この左右ブロック１
５，１６を、例えば上記上下金台１１，１０の幅方向中
心線に対象に左右方向に移動させ、両者の間隔を変化さ
せる図示を省略した移動装置とを有している。この左右
ブロック１５，１６は、絶縁・断熱性を有するポリアセ
タール樹脂からなる。上記上下金台１１，１０それぞれ
における上記凹部の両側には、この左右ブロック１５，
１６の内側側面における上下端部が突き当たる突き当て
面部１７，１８が形成され、左右ブロック１５，１６が
この面部に突き当たる位置に移動位置決めされた状態で
上記規制を行う。FIG. 1 (a) is a perspective view showing a main part of a high-frequency heating apparatus suitable for carrying out the welding method according to this embodiment. This high-frequency heating device, as a pair of electrodes,
It has a fixed lower metal base 10 and an upper metal base 11 that can be raised and lowered by an elevator (not shown). Each of the upper and lower metal bases 11 and 10 is made of brass which is a conductor, and is electrically connected to a high frequency power supply device (not shown). This upper and lower metal stand 11,1
0 is a wire rod 1 to be processed on the surface facing each other
The semi-cylindrical recesses 13 and 14 are provided according to the outer shape of No. 2. The width of the recesses 13 and 14 in the longitudinal direction is equal to that of the wire 1
It corresponds to the planned welding length of 2. Also, in this high-frequency heating device, the wire rod portion which is heated and softened while being pressed by the upper and lower metal plates 11 and 10 protrudes outward in the width direction from between the recesses 13 and 14 corresponding to the pressing region of the upper and lower metal plates 11 and 10. Left and right block as a regulating member to regulate the
It is indicated by a chain double-dashed line. ) 15, 16 and this left and right block 1
5 and 16 are moved to the left and right with respect to the center line in the width direction of the upper and lower metal bases 11 and 10, for example, and a moving device (not shown) that changes the distance between the two is provided. The left and right blocks 15 and 16 are made of polyacetal resin having an insulating / heat insulating property. The left and right blocks 15 and 15 are provided on both sides of the recess in the upper and lower metal plates 11 and 10, respectively.
The abutting surface portions 17 and 18 on which the upper and lower end portions of the inner side surface of 16 abut, and the left and right blocks 15 and 16 are moved and positioned to abut on the surface portions to perform the above regulation.

【００１０】この高周波加熱装置では、熱可塑性ポリウ
レタンエラストマーからなる線材１２の一端部を環状に
曲げ、この曲げ部が上記凹部間から所定量だけ突出する
ように下金台１０の凹部１４上に載置する。そして、上
金台１１を降下させ、上下金台１１，１０の凹部１３，
１４間に位置する線材部分同士を接触させる。また、左
右ブロック１５，１６を上記規制位置に移動させ、上下
金台１１，１０の突き当て面部１７，１８に突き当てて
位置決めする。そして、上下金台１１，１０間への高周
波の印加及び上金台１１の降下による加圧を行う。In this high-frequency heating device, one end of a wire rod 12 made of thermoplastic polyurethane elastomer is bent in an annular shape, and the bent portion is mounted on the recess 14 of the lower metal base 10 so as to protrude from the space between the recesses by a predetermined amount. Place. Then, the upper metal base 11 is lowered to form the recesses 13 of the upper and lower metal bases 11, 10.
The wire rod portions located between 14 are brought into contact with each other. Further, the left and right blocks 15 and 16 are moved to the above-mentioned restricted position, and abutted against the abutting surface portions 17 and 18 of the upper and lower metal bases 11 and 10 for positioning. Then, high frequency is applied between the upper and lower metal bases 11 and 10 and pressure is applied by lowering the upper metal base 11.

【００１１】図１（ｂ）は、上記高周波加熱装置におけ
る高周波印加及び上金台の降下動作の一例のタイミング
チャートを示すものである。図１（ｂ）において、高周
波印加を開始して１秒間経過した時点から上金台１１を
降下させ上下金台１１，１０の凹部１３，１４間に位置
する線材部分同士を加圧する。この降下を１秒間継続さ
せた後、停止させる。この停止時の凹部１３，１４間の
距離が線材１２の本来の直径の合計（例えば、２．８ｍ
ｍの線材の場合には５．６ｍｍ）の７割程度になるよう
に降下スピードを設定しておく。そして、この降下停止
から１秒経過時点で高周波印加を停止する。この高周波
印加停止から５秒経過時点で上金台に対する下方への付
勢力を解除する。なお、左右ブロックはこの下方への付
勢力解除の直前に、上記移動装置による上下金台１１，
１０の突き当て面部１７，１８への突き当てのための付
勢力が解除される。FIG. 1B is a timing chart showing an example of the high frequency application and the lowering operation of the upper metal plate in the high frequency heating apparatus. In FIG. 1B, the upper metal plate 11 is lowered from the time when one second has passed after the application of high frequency, and the wire rod portions located between the recesses 13 and 14 of the upper and lower metal plates 11 and 10 are pressed. This descent is continued for 1 second and then stopped. The distance between the recesses 13 and 14 when stopped is the total of the original diameters of the wire 12 (for example, 2.8 m).
In the case of a wire rod of m, the descending speed is set to be about 70% of 5.6 mm). Then, the high frequency application is stopped when 1 second has elapsed from the stop of the descent. The urging force downward to the upper metal plate is released 5 seconds after the application of the high frequency is stopped. The right and left blocks are placed on the upper and lower metal bases 11 by the moving device immediately before the downward urging force is released.
The urging force for abutting 10 on the abutting surface portions 17, 18 is released.

【００１２】図２（ａ）は以上の溶着により形成された
環状部の正面図、図２（ｂ）は図２（ａ）中のＸ−Ｘ断
面図である。溶着部分は接合界面がかすかにしか目視で
きない程度まで溶着一体し、また、折り曲げた線材１２
の一端部の端のエッジＡは溶融してなだらかになった。
更に、この溶着方法を用いて端部に環状部を形成した線
状釣り用具の引っ張り強度は十分であることが確認され
た。図３は引っ張り強度の実験の説明図である。この実
験では、一端部に環状部を形成した線状釣り用具の他端
部を万力２０で固定した状態で、該環状部に連結した金
属リング２１を介しバネ２２により引っ張り力を与えて
引っ張り強度を測定した。これによると線径２．８ｍｍ
の線材１２を用い、上記溶着方法で端部に環状部を形成
した線状釣り用具は、１８〜２０Ｋｇ重程度の引っ張り
力でなければ切断されないことが確認された。FIG. 2 (a) is a front view of the annular portion formed by the above welding, and FIG. 2 (b) is a sectional view taken along line XX in FIG. 2 (a). The welded portion is welded and integrated to such an extent that the joint interface can be only visually observed, and the bent wire 12
The edge A at the end of one end melted and became smooth.
Further, it was confirmed that the linear fishing tackle having the annular portion formed at the end portion using this welding method has sufficient tensile strength. FIG. 3 is an explanatory diagram of the tensile strength experiment. In this experiment, while the other end of the linear fishing tool having an annular part formed at one end is fixed with a vise 20, a pulling force is applied by a spring 22 through a metal ring 21 connected to the annular part to pull it. The strength was measured. According to this, the wire diameter is 2.8 mm
It was confirmed that the linear fishing equipment in which the wire rod 12 of No. 1 was used to form an annular portion at the end by the above-described welding method was not cut unless the pulling force was about 18 to 20 kg.

【００１３】図４（ａ）〜（ｄ）は比較のため本発明の
ものとは異なる溶着方法の一例を示すものである。この
例は、端Ｂを斜めにカットした線材１２の端部を環状に
屈曲させて、カット面と該線材１２の途中の部分（以
下、線材途中部という）とで熱板３０を挟み、この状態
で該熱板３０を発熱させてカット面及び線材途中部表面
を溶融させた後に該熱板を取り除き、加圧部材３１及び
定盤３２で加圧してカット面と線材途中部表面との接触
部を溶着するものである。なお、上述のように端部がカ
ットされていない線材１２を用いる場合には溶着後に、
図４（ｄ）に示すように溶着端部のエッジ部Ｃが斜めに
カットされる。FIGS. 4A to 4D show an example of a welding method different from that of the present invention for comparison. In this example, the end portion of the wire rod 12 in which the end B is obliquely cut is bent in an annular shape, and the hot plate 30 is sandwiched between the cut surface and a portion in the middle of the wire rod 12 (hereinafter referred to as a wire rod middle portion). In this state, heat is generated from the hot plate 30 to melt the cut surface and the surface of the wire intermediate part, and then the hot plate is removed and pressed by the pressing member 31 and the platen 32 to bring the cut surface into contact with the surface of the wire intermediate part. The parts are welded together. In addition, in the case of using the wire 12 whose end is not cut as described above, after welding,
As shown in FIG. 4D, the edge portion C of the welding end portion is obliquely cut.

【００１４】この比較例に係る溶着方法を用いて端部に
環状部を形成した直径２．５ｍｍの線材１２は、８Ｋｇ
重程度の引っ張り力で切断されてしまった。このように
引っ張り強度が上記実施形態に係る溶着方法を用いて端
部に環状部を形成した線状釣り用具に劣るばかりでな
く、図４（ａ）に示す溶着前あるいは図４（ｄ）に示す
溶着後の線材１２のカット作業工程が必要な分、線状釣
り用具の製造工程数も多くなってしまう。A wire 12 having a diameter of 2.5 mm and having an annular portion formed at the end thereof by using the welding method according to this comparative example has a weight of 8 kg.
It was cut with a heavy pulling force. As described above, the tensile strength is not only inferior to that of the linear fishing equipment having the annular portion formed at the end portion by using the welding method according to the above-described embodiment, but also before welding as shown in FIG. 4 (a) or as shown in FIG. 4 (d). The number of steps for manufacturing the linear fishing gear increases because the cutting work step of the wire rod 12 after welding as shown in the figure is required.

【００１５】なお、上記実施形態に係る溶着方法とは異
なり、左右ブロック１５，１６を用いた加圧領域からの
はみ出し規制を行わなくても、高周波加熱による溶着は
可能で、上述の図３に示す比較例と同程度の引っ張り強
度を得ることができた。Unlike the welding method according to the above embodiment, the welding by high frequency heating is possible without restricting the protrusion from the pressurizing region using the left and right blocks 15 and 16, as shown in FIG. It was possible to obtain the same tensile strength as that of the comparative example shown.

【００１６】[0016]

【発明の効果】請求項１乃至４の発明によれば、加圧領
域からのはみ出しを規制せずに溶着を行う場合に比し
て、溶着後の熱可塑性材料の引っ張り強度を増大させる
ことができる。特に請求項２あるいは４の発明によれ
ば、断熱材により外部への放熱を防止できるので、高周
波印加のエネルギーの軽減を図れる。According to the first to fourth aspects of the invention, the tensile strength of the thermoplastic material after welding can be increased as compared with the case where welding is performed without restricting the protrusion from the pressurizing region. it can. In particular, according to the second or fourth aspect of the invention, the heat insulating material can prevent the heat radiation to the outside, so that the energy applied to the high frequency can be reduced.

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

【図１】（ａ）は発明の実施形態に係る溶着方法を実施
するのに適した高周波加熱装置の主要部を示す斜視図。
（ｂ）は上記高周波加熱装置における高周波印加及び上
金台の降下動作の一例のタイミングチャート。FIG. 1A is a perspective view showing a main part of a high-frequency heating apparatus suitable for carrying out a welding method according to an embodiment of the invention.
(B) is a timing chart of an example of high frequency application and lowering operation of the upper metal plate in the high frequency heating device.

【図２】（ａ）は同溶着方法を用いた溶着により形成さ
れた環状部の正面図。（ｂ）は図２（ａ）中のＸ−Ｘ断
面図。FIG. 2A is a front view of an annular portion formed by welding using the same welding method. FIG. 2B is a sectional view taken along line XX in FIG.

【図３】引っ張り強度の実験の説明図。FIG. 3 is an explanatory diagram of a tensile strength experiment.

【図４】（ａ）〜（ｄ）は比較例に係る溶着方法の説明
図。4A to 4D are explanatory views of a welding method according to a comparative example.

【符号の説明】[Explanation of symbols]

１０ 下金台 １１ 上金台 １２ 線材 １３ 凹部 １４ 凹部 １５ 左ブロック １６ 右ブロック １７ 突き当て面部 １８ 突き当て面部 10 Lower metal base 11 Upper metal base 12 Wire material 13 Recessed portion 14 Recessed portion 15 Left block 16 Right block 17 Abutting surface portion 18 Abutting surface portion

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】高周波加熱を用いた熱可塑性材料の溶着方
法において、熱可塑性材料を高周波加熱用の一対の電極
で加圧するとともに、高周波加熱で軟化した材料が該一
対の電極による加圧領域からはみ出すのを規制しなが
ら、該一対の電極間に高周波を印加して溶着を行うこと
を特徴とする熱可塑性材料の溶着方法。1. A method for welding a thermoplastic material using high-frequency heating, wherein the thermoplastic material is pressed by a pair of electrodes for high-frequency heating, and the material softened by the high-frequency heating is removed from a region pressed by the pair of electrodes. A method for welding a thermoplastic material, characterized in that a high frequency is applied between the pair of electrodes to perform welding while controlling the protrusion. 【請求項２】請求項１の溶着方法において、上記規制を
断熱材を用いて行うことを特徴とする熱可塑性材料の溶
着方法。2. The welding method according to claim 1, wherein the regulation is performed by using a heat insulating material. 【請求項３】高周波電圧が印加される一対の電極と、該
一対の電極間に高周波電圧を印加する電圧印加手段と、
該一対の電極間に溶着すべき熱可塑性材料を介在させた
状態で該一対の電極の少なくとも一方を他方に対して加
圧する加圧手段と、高周波加熱で軟化した材料が該一対
の電極による加圧領域からはみ出すのを規制する規制手
段とを有することを特徴とする高周波加熱装置。3. A pair of electrodes to which a high frequency voltage is applied, and a voltage applying means for applying a high frequency voltage between the pair of electrodes,
Pressurizing means for pressing at least one of the pair of electrodes against the other in a state where the thermoplastic material to be welded is interposed between the pair of electrodes, and a material softened by high frequency heating is applied by the pair of electrodes. A high-frequency heating device, comprising: a restricting unit that restricts protrusion from a pressure region. 【請求項４】請求項３の高周波加熱装置において、上記
規制手段を断熱部材を用いて構成したことを特徴とする
高周波加熱装置。4. The high frequency heating apparatus according to claim 3, wherein the regulating means is constituted by a heat insulating member.
JP34577695A 1995-12-08 1995-12-08 Welding method using high-frequency heating and device therefor Withdrawn JPH09155979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34577695A JPH09155979A (en) 1995-12-08 1995-12-08 Welding method using high-frequency heating and device therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34577695A JPH09155979A (en) 1995-12-08 1995-12-08 Welding method using high-frequency heating and device therefor

Publications (1)

Publication Number Publication Date
JPH09155979A true JPH09155979A (en) 1997-06-17

Family

ID=18378903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34577695A Withdrawn JPH09155979A (en) 1995-12-08 1995-12-08 Welding method using high-frequency heating and device therefor

Country Status (1)

Country Link
JP (1) JPH09155979A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270485A1 (en) * 2001-06-28 2003-01-02 Edward S. Bittar Hand held fishing line welder
JP2010063892A (en) * 2008-09-11 2010-03-25 Tyco Healthcare Group Lp Tapered suture thread with loop
JP2010099480A (en) * 2008-10-27 2010-05-06 Tyco Healthcare Group Lp System, method and apparatus for making tapered looped suture
JP2011026742A (en) * 2009-07-28 2011-02-10 Mitsuboshi Belting Ltd Cord joint apparatus and method
US8968362B2 (en) 2010-04-08 2015-03-03 Covidien Lp Coated looped suture
JP6847568B2 (en) * 2019-03-26 2021-03-24 黒田 剛司 Manufacturing method and manufacturing equipment for strip-shaped three-dimensional decorative pieces made of thermoplastic synthetic resin
US11152753B2 (en) * 2017-07-14 2021-10-19 Furukawa Electric Co., Ltd. Conductor connection device and conductor connection method

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270485A1 (en) * 2001-06-28 2003-01-02 Edward S. Bittar Hand held fishing line welder
US10016196B2 (en) 2008-09-11 2018-07-10 Covidien Lp Tapered looped suture
JP2010063892A (en) * 2008-09-11 2010-03-25 Tyco Healthcare Group Lp Tapered suture thread with loop
EP2540229A1 (en) * 2008-09-11 2013-01-02 Covidien LP Tapered looped suture
EP2752160A1 (en) * 2008-09-11 2014-07-09 Covidien LP Tapered looped suture
US10912552B2 (en) 2008-09-11 2021-02-09 Covidien Lp Tapered looped suture
JP2010099480A (en) * 2008-10-27 2010-05-06 Tyco Healthcare Group Lp System, method and apparatus for making tapered looped suture
EP2184157A1 (en) * 2008-10-27 2010-05-12 Tyco Healthcare Group LP System, method and apparatus for making tapered looped suture
EP2474408A1 (en) * 2008-10-27 2012-07-11 Tyco Healthcare Group, LP System, method and apparatus for making tapered looped suture
EP2567804A1 (en) * 2008-10-27 2013-03-13 Covidien LP System, method and apparatus for making tapered looped suture
US8403017B2 (en) 2008-10-27 2013-03-26 Covidien Lp System, method and apparatus for making tapered looped suture
JP2011026742A (en) * 2009-07-28 2011-02-10 Mitsuboshi Belting Ltd Cord joint apparatus and method
US9687228B2 (en) 2010-04-08 2017-06-27 Covidien Lp Coated looped suture
US8979894B2 (en) 2010-04-08 2015-03-17 Covidien Lp Coated looped suture
US8968362B2 (en) 2010-04-08 2015-03-03 Covidien Lp Coated looped suture
US11152753B2 (en) * 2017-07-14 2021-10-19 Furukawa Electric Co., Ltd. Conductor connection device and conductor connection method
JP6847568B2 (en) * 2019-03-26 2021-03-24 黒田 剛司 Manufacturing method and manufacturing equipment for strip-shaped three-dimensional decorative pieces made of thermoplastic synthetic resin
JPWO2020194496A1 (en) * 2019-03-26 2021-04-30 黒田 剛司 Manufacturing method and manufacturing equipment for strip-shaped three-dimensional decorative pieces made of thermoplastic synthetic resin

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