JP2017013465A - チューブ容器端部の超音波シール装置及び超音波シール方法 - Google Patents
チューブ容器端部の超音波シール装置及び超音波シール方法 Download PDFInfo
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B29C66/832—Reciprocating joining or pressing tools
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- 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
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
図1に、本発明の第一の実施の形態にかかるチューブ容器端部の超音波シール装置(以下、「超音波シール装置」と略称する)の概略側面図を示す。本発明の第一の実施の形態にかかる超音波シール装置は、L字型断面をしたハウジング1の柱部分に、同じくL字型断面をしたスライダー2が紙面の上下方向(Y矢印方向)に図示しないエアーシリンダーで往復運動自在に取り付けられている。スライダー2には超音波振動するブースターホーン14が取り付けられ、ブースターホーン14の上端には超音波振動子3が、下端には工具ホーン5がそれぞれネジSで取り付けられている。工具ホーン5は、概ね十字型をしていて、十字の交差部分である中心部には奥行方向に貫通孔5cがあいている。
(式4) δ4=(1/3)F1×L2 3/EI
=(1/3)F1×(L1×2)3/EI
=(1/3)F1×(8×L1 3)/EI
=8×{(1/3)F1×L1 3/EI}
=8×δ1
(式5) δ1=1/8×δ4
図8に、本発明の第二の実施の形態にかかる超音波シール装置の要部側面図を示す。本発明の第二の実施の形態にかかる超音波シール装置は、本発明の第一の実施の形態にかかる超音波シール装置の図1と類似しているが、チューブ容器8を直立させ、チューブ容器8のキャップ9側を下に、チューブ容器端部8aを上して、工具ホーン5を図中のM矢印のように動かして、アンビル6と工具ホーン5でチューブ容器端部8aを紙面の水平方向に挟持するようにした点が異なる。溶着強度等の溶着性能自体は、第一の実施形態と同じであるが、チューブ容器8がキャップ9側を下にして直立しているため、実際の生産工程でチューブ容器の取り扱いが容易となる利点がある。
図9に、本発明の第三の実施の形態にかかる超音波シール装置の要部側面図を示す。本発明の第三の実施の形態にかかる超音波シール装置は、図8に示した本発明の第二の実施の形態にかかる超音波シール装置と構成は似ているが、工具ホーン5の先端のたわみ量を勘案して、チューブ容器端部8aを押圧する先端の押圧面を超音波振動方向に対して斜めに形成した点に特徴がある。溶着条件として、チューブ容器端部8aの押圧力が大きく、工具ホーン5の先端のたわみ量が大きい場合に、予め押圧面を斜めにしておくことにより、実際にチューブ容器端部8aをアンビル6と工具ホーン5で挟持した時に、チューブ容器端部8aの押圧力が均一となり、所定の溶着力が所定幅の領域にわたって得られるという利点がある。
図10に、本発明の第四の実施の形態にかかる超音波シール装置の要部側面図を示す。本発明の第四の実施の形態にかかる超音波シール装置は、本発明の第一の実施の形態にかかる超音波シール装置の工具ホーン5の水平方向の2つの先端部5h、5hの下面に、それぞれアンビル6、6を配置して、それぞれの工具ホーン5の先端下面と各アンビル6でチューブ容器端部8a、8aを挟持して、一つの工具ホーン5を超音波振動させることにより、同時に2つのチューブ容器端部8aを溶着するようにしたものである。工具ホーン5は左右対称の2つの位置でチューブ容器端部を押圧するので、超音波シール装置のスライダー2の負荷は左右にバランスが取れて上下動動作がスムーズである。これにより、一度に2つのチューブ容器端部を溶着するので生産性が2倍に向上するという利点がある。
上記第一から第四の実施の形態では、工具ホーンの超音波振動の振動方向を、縦方向から横方向に90度変換する特徴ある形状として「たわみ」を小さくした本発明の実施形態を説明した。本発明の第五の実施の形態は、上記工具ホーンを支持する構造を改良して「たわみ」を更に小さくしている。
2、30 スライダー
3 超音波振動子
14 ブースターホーン
5、50 工具ホーン
5c 貫通孔
6 アンビル
7 チューブ容器保持手段
8 チューブ容器
δ3、δ4 たわみ量
L1、L2 工具ホーンの腕の長さ
B 工具ホーンの押圧面
F 押圧力
H矢印 紙面において横の振動方向
V矢印 紙面において縦方向の振動方向
Y矢印 スライダーの往復運動方向
Claims (10)
- チューブ容器端部を溶着するチューブ容器端部の超音波シール装置であって、
超音波振動を発生させる超音波振動発生手段と、
前記超音波振動発生手段から受けた縦方向の超音波振動を横方向に変換する工具ホーンと、を備え、
前記超音波振動発生手段から前記工具ホーンに伝わる縦方向の超音波振動を横方向の超音波振動にして、
横方向に超音波振動する前記工具ホーンの先端部分を前記チューブ容器端部の溶着対象範囲のチューブ表面に押圧して超音波振動エネルギーを付与し、
前記チューブ容器端部の溶着対象範囲を発熱させて超音波溶着させるようにしたことを特徴とするチューブ容器端部の超音波シール装置。 - 前記工具ホーンとして、前記超音波振動発生手段から前記工具ホーンに伝わる縦方向の超音波振動を横方向に変換する十字型工具ホーンを用いたことを特徴とする請求項1に記載のチューブ容器端部の超音波シール装置。
- 前記十字型工具ホーンの前記チューブ容器端部を押圧する十字の先端部に、先端部の振動方向と直交方向に寸法が拡大した凸部を形成し、
当該凸部の前記チューブ容器端部を押圧する表面にローレット溝を設けたことを特徴とする請求項2に記載のチューブ容器端部の超音波シール装置。 - 前記十字型工具ホーンの十字に交差する交差部分にて奥行方向に突出した凸部、または奥行方向に凹んだ凹部を設けたことを特徴とする請求項2又は3に記載のチューブ容器端部の超音波シール装置。
- 前記十字型工具ホーンの十字に交差する交差部分にて奥行方向に貫通した貫通孔を設けたことを特徴とする請求項2から4のいずれか一項に記載のチューブ容器端部の超音波シール装置。
- 前記十字型工具ホーンの十字に交差する交差部分にて奥行方向に突出した凸部、または奥行方向に凹んだ凹部を支持する支持手段を更に設け、
当該支持手段で、前記凸部または凹部で工具ホーンを支持し、当該支持手段とともに工具ホーンを移動させて、横方向に超音波振動する前記工具ホーンの先端部分を前記チューブ容器端部の溶着対象範囲のチューブ表面に押圧して超音波振動エネルギーを付与し、
前記チューブ容器端部の溶着対象範囲を発熱させて超音波溶着させるようにしたことを特徴とする請求項4又は5に記載のチューブ容器端部の超音波シール装置。 - 前記工具ホーンの先端のうち、横方向に超音波振動する一対の先端部分を、それぞれ別のチューブ容器端部における溶着対象範囲のチューブ表面に押圧して、同時に超音波振動エネルギーを付与し、
各チューブ容器端部の溶着対象範囲を発熱させて超音波溶着させるようにしたことを特徴とする請求項2から6のいずれか一項に記載のチューブ容器端部の超音波シール装置。 - チューブ容器端部を溶着するチューブ容器端部の超音波シール方法であって、
超音波振動発生手段から受けた縦方向の超音波振動を横方向に変換する工具ホーンを用い、
前記超音波振動発生手段から前記工具ホーンに伝わる縦方向の超音波振動を横方向の超音波振動にして、
横方向に超音波振動する前記工具ホーンの先端部分を前記チューブ容器端部の溶着対象範囲のューブ表面に押圧して超音波振動エネルギーを付与し、
前記チューブ容器端部の溶着対象範囲を発熱させて超音波溶着させるようにしたことを特徴とするチューブ容器端部の超音波シール方法。 - 前記工具ホーンとして、縦方向の超音波振動を横方向に変換する十字型工具ホーンを用いたことを特徴とした請求項8に記載のチューブ容器端部の超音波シール方法。
- 前記工具ホーンの先端のうち、横方向に超音波振動する一対の先端部分を、それぞれ別のチューブ容器端部における溶着対象範囲のチューブ表面に押圧して、同時に超音波振動エネルギーを付与し、
各チューブ容器端部の溶着対象範囲を発熱させて超音波溶着させるようにしたことを特徴とする請求項9記載のチューブ容器端部の超音波シール方法。
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EP3848186A1 (en) * | 2020-01-08 | 2021-07-14 | Ecolean AB | Sealing element for sealing a package and device for sealing a package |
RU2795032C1 (ru) * | 2020-01-08 | 2023-04-27 | Эколин Аб | Запечатывающий элемент для герметизации упаковки и устройство для герметизации упаковки |
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JP7175108B2 (ja) | 2018-06-21 | 2022-11-18 | ブランソン・ウルトラソニックス・コーポレーション | 超音波溶着システム |
EP3848186A1 (en) * | 2020-01-08 | 2021-07-14 | Ecolean AB | Sealing element for sealing a package and device for sealing a package |
WO2021139962A1 (en) | 2020-01-08 | 2021-07-15 | Ecolean Ab | Sealing element for sealing a package and device for sealing a package |
RU2795032C1 (ru) * | 2020-01-08 | 2023-04-27 | Эколин Аб | Запечатывающий элемент для герметизации упаковки и устройство для герметизации упаковки |
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