JP6757914B2 - 高周波ミシン - Google Patents
高周波ミシン Download PDFInfo
- Publication number
- JP6757914B2 JP6757914B2 JP2016084026A JP2016084026A JP6757914B2 JP 6757914 B2 JP6757914 B2 JP 6757914B2 JP 2016084026 A JP2016084026 A JP 2016084026A JP 2016084026 A JP2016084026 A JP 2016084026A JP 6757914 B2 JP6757914 B2 JP 6757914B2
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- JP
- Japan
- Prior art keywords
- pair
- work material
- sewing machine
- frequency
- electrode
- 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.)
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Images
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- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/81871—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects of the welding jaws
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- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
- B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
- B29C66/91231—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the joining tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C65/30—Electrical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
- B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8122—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
-
- 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
- B29L2031/48—Wearing apparel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Textile Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Treatment Of Fiber Materials (AREA)
Description
図1は本発明の実施の形態に係る高周波ミシン全体の外観斜視図、図2は同上高周波ミシンの一部を破断した状態の要部の拡大正面図、図3は同上高周波ミシンによる加工対象となる被加工材の要部の拡大断面図、図4は同上高周波ミシンにおける主要部の構成を説明する要部の拡大縦断正面図、図5は同上高周波ミシンにおける主要部の構成を説明する要部の拡大縦断側面図である。
前記支持台枠5の上端部には、後述する被加工材Hを摺接移動可能に載置する被加工材載置板(これは、一般的な縫製ミシンにおける針板に相当し、以下、載置板と称する。)6が取り付けられている。前記載置板6は、例えば、ポリアミド、ポリアセタール、ABS、ポリカーボネート等の構造材で、かつ、耐摩耗性、耐食性、電気絶縁性及び耐熱性を有する材料であるエンジニアリングプラスチックから構成されている。特に、載置板6の構成材料としては、ポリエーテル・エーテル・ケトン樹脂からなるスーパーエンジニアリングプラスチックを用いることが好ましい。
図6に示すように、高周波電力付与装置15は、高周波発振器40と高周波整合装置41と高周波電力の出力を制御する制御回路42と高周波電力の出力調整部43と、を具備してなり、接着加工動作時には、前記プラス電極13及びマイナス電極14間に所定の値の高周波電力を連続的に付与するように構成されている。
まず、前記膝スイッチ45をオンしてそのオン信号を前記制御部16へ入力し、該制御部16から前記電極昇降機構25に動作制御信号を出力させることにより、上部のプラス電極13が電極昇降機構25を介して下部のプラス電極14に接近する位置に押し下げられて、図7のイメージに示すような所定の接着加工動作モードとなる。
この状態で、載置板6上に被加工材Hを載置し、該被加工材Hの搬送方向先端部分を上下一対のエンドレスベルト8、9の略水平ベルト部分8a,9a間の搬送方向始端部に差し込みセットする。
7 温度センサ
8、9 上下一対の耐熱性エンドレスベルト
10、11 上下一対のローラ
12 ローラ装置
13 マイナス電極
14 プラス電極
13a、14a 平坦面状の電極面
15 高周波電力付与装置
16 制御部
17、21 駆動モータ(ステッピングモータ)
25 電極昇降機構(押え機構)
26 カーボン粉末含有のフッ素スポンジ(膜材)
35 速度調整部
44 動作スイッチ
W 繊維生地
T 熱可塑性樹脂テープ
H 被加工材
Claims (5)
- 繊維生地の重ね合わせ部の間に熱可塑性樹脂テープが挟み込まれた被加工材又は二枚の繊維生地の端部を突合せ配置し該二枚の繊維生地の突合せ端部の上面間に亘って熱可塑性樹脂テープが載せ付けられた被加工材を上下から挟んで水平面に沿う特定方向へ連続搬送する上下一対の耐熱性エンドレスベルトと、該上下一対の耐熱性エンドレスベルトによる被加工材搬送経路の上下位置に対向して配置された平坦面状のプラス電極及びマイナス電極と、これらプラス電極及びマイナス電極間に高周波電力を付与する高周波電力付与装置と、制御部と、を備え、
前記上下一対の耐熱性エンドレスベルトに挟まれて水平面に沿って前記特定方向に連続搬送される前記被加工材に対して前記高周波電力付与装置から前記プラス及びマイナス電極間に高周波電力を付与することによって、前記熱可塑性樹脂テープを高周波誘電加熱により溶融して前記繊維生地の重ね合わせ部又は突合せ端部を溶融された前記熱可塑性樹脂テープを介して接着するように構成されている高周波ミシンであって、
前記プラス電極及びマイナス電極それぞれの電極面には、緩衝性、電気絶縁性を有し、かつ、高周波の吸収により発熱するカーボン粉末を含む導体物質を含有するフッ素スポンジからなる膜材が貼り付けられて、前記導体物質の高周波吸収による誘導発熱とフッ素スポンジの高周波吸収による誘電加熱とにより前記両電極及び前記被加工材を高温状態に昇温する予熱機能を発現可能にしていると共に、該膜材を貼り付けた電極側には該電極の温度を計測する温度センサが付設されており、
前記制御部は、当該ミシンの動作スイッチをオンにしたとき、上下一対の耐熱性エンドレスベルトによる被加工材の搬送を停止したまま前記高周波電力付与装置のみ作動開始して両電極間に高周波電力を付与し、この状態で前記温度センサが所定の温度を計測したとき、前記上下一対の耐熱性エンドレスベルトによる被加工材の搬送を開始すべく前記エンドレスベルトの駆動装置の動作を制御するように構成されていることを特徴とする高周波ミシン。 - 前記プラス電極及びマイナス電極の被加工材搬送方向の直後位置には、前記上下一対の耐熱性エンドレスベルトを介して前記被加工材を上下から挟む位置に配置された上下一対のローラからなり、これら上下一対のローラを前記上下一対の耐熱性エンドレスベルトとの摺接により従動回転可能としたローラ装置が具備されている請求項1に記載の高周波ミシン。
- 前記プラス電極が前記被加工材搬送経路の下部位置に配置され、かつ、前記マイナス電極が前記被加工材搬送経路の上部位置に配置され、上部のマイナス電極の電極面を除く部分の全体は電気絶縁材に被覆されており、前記マイナス電極側には、前記電気絶縁材を介して被加工材を前記下部のプラス電極の電極面側に押し付ける押え機構が装備されている請求項1に記載の高周波ミシン。
- 前記上下一対の耐熱性エンドレスベルトは、フッ化エチレン樹脂から構成され、被加工材を挟む上下対向面が前記特定方向に向けて移動するように上下各別に駆動移動されるように構成されている請求項1乃至3のいずれか1項に記載の高周波ミシン。
- 前記上下一対の耐熱性エンドレスベルトのうち、少なくとも一方のエンドレスベルトの駆動部には、該エンドレスベルトの移動速度を調整可能な速度調整部が設けられている請求項乃至4のいずれか1項に記載の高周波ミシン。
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