TW319917B - - Google Patents

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Publication number
TW319917B
TW319917B TW085110329A TW85110329A TW319917B TW 319917 B TW319917 B TW 319917B TW 085110329 A TW085110329 A TW 085110329A TW 85110329 A TW85110329 A TW 85110329A TW 319917 B TW319917 B TW 319917B
Authority
TW
Taiwan
Prior art keywords
sealing unit
unit
amplitude
gasket
sealing
Prior art date
Application number
TW085110329A
Other languages
English (en)
Original Assignee
Tetra Laval Holdings & Finance
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 Tetra Laval Holdings & Finance filed Critical Tetra Laval Holdings & Finance
Application granted granted Critical
Publication of TW319917B publication Critical patent/TW319917B/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8141General 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
    • B29C66/81427General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/22Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0611Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
    • B06B1/0618Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8145General 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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/816General 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
    • B29C66/8167Quick change joining tools or surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/95Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9516Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration amplitude
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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 structure of the material of the parts to be joined
    • B29C66/723General 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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232General 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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321General 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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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 structure of the material of the parts to be joined
    • B29C66/723General 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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232General 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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327General 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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328Paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/739General 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
    • B29C66/7392General 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
    • B29C66/73921General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/92Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02Aluminium

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Package Closures (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Seal Device For Vehicle (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Description

五、發明説明( A7 B7 經濟部中央樣準局員工消費合作社印製 技術範圍 本發明係有關於一種用於超音波密封 該型驅動裝置包括多數個壓電陶磁片 足間,孩金屬板係與一直流電源連接,一平衡荷重, 扣螺絲,該超音波密封單元包括―均勾本體其上固 疋安裝了該驅動單元。 習知技藝 在現今的產㈣,已有多採用超音波進行密封之裝置。 瑞二專^申叫案S E 9 3 〇 〇 9 1 8 _ 1揭露出—種密封單元',這 種密封單元係特別爲了灌裝機簧所設計製造,這種灌裝機 係在用後即丟之包裝盒内灌裝液·體食品。由於灌裝機器 安裝超音波單it的空間有限,因此前述該型密封單元之队 度僅爲波?的-半。在該灌裝機器中,具有蹼片之包裝: 料被,成管狀’並具有重#之縱長接縫或密封,然後在管 體内准滿液體食品 '該灌滿液體食品《管體被進橫向密封 ’ ^由這些橫向密封’這些材料管便成了—個個的飲料盒 。前述描述之密封單元即要用來進行橫向密封,爲了達到 良好:封效果,該密封單元具有一狹長、狹窄之密封平 ,相等於要進行橫向接合密封的寬度。爲了得到所需要 度之橫向法封,可將多數個前述密封單元組合起來,以構 成-複合超音波密封設備單元。該密封單元具有反應本體 包圍住該驅動單元,一彎部載有—狹長、狹窄之密封平 ’-設置在中央之節點平面,在該處密封單元之幅度爲 ,及利用1¾點可將密封單元固定在灌装機器上。 内長 面長 面 零 I ^ .裝-- . - < (請先閲讀背面之I意事項•再填寫本頁) ,ιτ -4- 五、發明説明(2 A7 B7 經濟部中央榡準局員工消費合作衽印製 前述型式之密封單元具有太複雜的幾何構造。雖然,文 置在中央的節點平面,該處之幅度爲零,雖然該節·點平面 可用來固定該密封單元’但是由於該密封單元振盘,仍然 會在該平面產生輕微的殘存動作。這種動作可稱爲在—平 面上之波堡運動。設置在驅動單元上之陶磁片可承受相當 大的壓縮負荷’但是卻非常的脆,並且對於任何撓曲性或 張力性的負荷都非常敏感’因此’出現在節點平面上之殘 附波盪運動會造成陶磁片破裂。 _ 當多數個前述之密封單元組合起來以構成一套用於_灌裝 機器之超音波密封設備時,及^袁多數套灌裝機器要進行相 同之灌裝作業時’#常重要的,是.不同的密封單元都必需以 相同之幅度操作’以確保零件的互換性。由於壓電陶磁片 很Μ得完全均勻的特性’因此不同的驅動單元,多少在 其產生之幅度上會出現微小的變化。 發明之目的 本發明(目的在於能夠製造_種驅動單元,其中出現在 節點平面上之微小殘存撓性應力可以被降到很低的水平, 進而不會對於敏感的陶磁片造成任何影響。 本發月目的在於能夠製造_種驅動單元,其可在 預先確定及選定之幅度下接你 ^ ^ 反卜操作,而不受控制幅度之壓電陶 磁片之品質之影響。 解答 \ 這些及其他目的可報她士 & ^ 』根據本發明提供之方法而達成,根據 本發明提供之裝置,其祛料士、 、手徵在於在該超音波密封單元之陶 η - 先 閱 讀 背 面 之 注, 意j 事 再· i 裝 訂 ^國國家標準 '發明説明(3 經濟部中央標準局員工消費合: Ϊ二及二體之間’設置有-墊片,其構成了該陶磁片及本 ^ ^件⑷’該㈣容許該超音波單元 疋可以防止殘存撓曲應力傳遞至該驅動單元。- 發明較佳實施例之進_步特 附屬項内。 符徵貝1在申凊專利範圍之 圖示之簡要說明 本發明之一較佳實施例, 明,其中· 财α6 σ所附圖不做更评細地說 圖1爲一超音波密封單元之立體圖__ 乃圖2爲沿著密封單元節點平面涨力分佈之應力分析圖; 及 圖3揭露出根據本發明之驅動裝置。 較佳實施例之説明 根據本發明I裝置,係特別針對圖丨揭露超音波密封單 元1或類似之密封單元i而開發製造。該密封單元丨實際上 包括一驅動單元2及一均勻本體3。 該密封單元1之驅動單元2包括多片壓電陶磁片3,交錯 地設置在導電金屬板4之間。該金屬板4係連接至一直流 源(圖中未示),因此該等壓電陶磁片3即導電地並聯在 起該陶磁片3及金屬板4及平衡荷重5則在預設張力下 夾扣螺絲6固持在一起。該夾扣螺絲6同時被用來將該驅 單元2固疋在該密封單元1之本體13上。該驅動單元2將 電位勢轉換成機械性位移,於是位移形成振堡,使密封 元1進行密封工作。 請 閏 背 ir 之 注. 意 事 項再… 裝 訂 電 以 該 單 -6 - 可中國國家標準(CNS)A4规格U10X 297公釐) 經濟部中央標準局員工消費合作社印製 _ A7 ______一- B7 五、發明説明(4 ) 該密封單元1之本體13包括本體7,包圍住驅動單元2, 及一彎邵8,其具有狹窄、狹長之密封平面9 ^該反應本體 7之作用在於吸收發生在彎部8上之振盪。在該彎部8及該 反應本體7間’形成有一節點平面1〇,在該處密封單元1 之幅度爲零。該節點平面1 〇設置有一錨碇緣! 1,該密封 單元即固定在該處。該密封單元丨之反應本體7,該具有錨 硬緣1 1之節點平面1 〇 ’及該彎部8最好係採用鈦金屬製造 ’但是也可以採用紹來製造。在較佳實施例中_,該密封單 元1之本體1 3最好爲 '製造成一件式,.而成爲一均勻本_禮, 但是也可以分別製造零件’進:而、組成本體1 3 ^ 以上描述之密封單元1係特別爲了灌裝機器所設計製造 ,這種灌裝機係在用後即丟之包裝盒内灌裝液體食品。在 這些灌裝機内’由於用來裝設超音波密封單元之空間有限 ’特別是將該密封單元重新安裝在現有的灌裝機具内時, 最好無需改裝或重新設計現有的灌裝機。如圖1所示,於 是該密封單元之全長僅有波長之一半。在該灌裝機具内, 其連續地處理由紙板或熱塑性材料(最好是鋁)構成之層化 材料蹼片,將這些材料蹼片製成一具有縱長接合或密封之 官體。於是將液體食品灌入該管體内,然後在管體上進行 橫向接合密封以製成飲料盒’材料'撲片被切開後即成爲個 別之飲料盒。根據圖1所揭露之密封.單元1即是要用於進行 橫向接合密封,爲了達到密封目的,該密封單元1之彎部8 是在末端製成一狹窄、狹長之密封平面9。該密封平面9之 寬度係相當於該橫向接合密封之寬度。爲了得到橫向接合 ________ 本紙張尺度適用中國II家標準(CNS ) A4規格(210.X 297公整) (請先閱讀背面之注•意事項*再填寫本頁) 裝- 訂 ------ 319917 A7 五 、發明説明( M濟部中央標準局員工消費合作社印製 密封所需之長度,可以將多數個密封單元丨整合 成整套之密封設備。 σ 以構 二於前述型式之超音波密封單元i具有特別複雜 〜構,因此雖然在該節點平面10處之幅度爲零,但θ 了 會在節點平面丨0上出現微小之殘存動作。如圖2之疋、然 所示’該動作包振組合的縱長㈣及半部 作可ia 士 取二,、丄 心叫依盖0廷個動 乍了視馬在-平面上〈波盪運動。然而在超音 _ 1在進行其密封工作時,僅需要在驅動 、早几 進仃縱長振盪之增殖運動。該壓電陶磁片3可, 當大的壓縮負荷,但是卻非常:;的脆,並且 相 性應力非常敏感。因此,在驅動單元2之陶撓曲 2所π之上部份’最好只有縱長振鱼出現增殖。 如圖 這個問題可藉由根據本發明提供之裝置而得 提供了-與陶磁片3尺寸相同之墊片12,該墊片 二晋 5=磁片3及該密封單元丨之節點平面1〇之間。二: 12係利用夹扣螺絲6固定位,其中該夾扣螺 ::: 將陶磁片3,金屬片4及平衡荷重5固持在—起。、二壓力 會在間磁片3及該密封單元i之本體13 = 12 隔Η。 構成一間 製造整片12之材料必需不會吸收、縱長 ,、 振盈係密封單元!作業之主要動力,也就是說長 有很高之Q僅。換句話説,整片12必〜材料要具 害的撓曲振湯,使得栌土β 而田々弱以削弱有 製_片「2: t 無法破壞陶磁片3。因此, 良…片12材料《彈性係數,最好低於包圍整片 本紙踉尺度财啤家轉(CNS ) A4規巷 8- (210x297公釐) 請先 閲 讀 背 Φ 之 注 3· 1 I裝 頁 玎 經濟部中央標準局員工消費合作杜印製 A7 B7 五、發明説明(6 ) 料(彈性係數’即孩陶磁片3之彈性係數約在75·ι2〇 之 間,而涊洽封早το 1之本體丨3即採用具有該彈性係數之材 料製造。於是,共同構成一密封單以之均句本體Η之具 有錨蚊緣1 1又即點平面i 〇,反應本體7及彎部8則最好採 用鈥來製造’其彈性係數約爲。在較佳之實施例 中’该墊片1 2係採用鋁來製造,鋁的彈性係數爲7〇 Gpa。 在此情況下,當密封單元1之均勻本體13是採用鋁來製造 時’ t t•片1 2材料之彈性係數則必需要較铭爲低,例 如銘或站。左g ^ t 種貫她例中’製造整片材料之彈性^系數 可=包圍材料,即陶磁片或本:體13材料之彈性係數相同或 更门仁疋’ 驗的結果顯示,當^片1 2採用較低彈性係 數(材料製造時,該密封單元i會具有較佳的密封結果。 吐由於安裝固定驅動單元2之節點平面1〇很難利用鈦來製 造’,此以做到句與平整,而較軟之㈣片12則根本 、σ牝做的不平整。再者’較軟之鋁平面亦更容易成型及 於疋抵返住陶磁片3之墊片1 2部份,便可以僅可能 地平整。 ,.二5個(取好疋二個)密封單元1-起安裝在灌裝機内 格I二夠長之橫向密封時,對這些密封單元1有著極嚴 '〆’因馬這些密封單元必需i相同的幅度下運轉。 夕’也許會採用多數套灌裝機具來.進行相同的灌裝工作 此,這些密封單元丨必需具有完全可互換性。但是, 、^何—製造’都很難製造出具有相同特性之壓電陶 口爲壓私陶磁片的不同,所製造出之密封單元1的
—^1 ^Kn Bull —^nt 19^ ——I— \ f 0¾.-έ - · ' 1 (請先閱讀背面之注,意事項•再填寫本頁〕 J
-9 (CNS ) A4規格(210x297公釐 ------- A7 B7 經濟部中央標準局員工消費合作杜印製 五、發明説明( 度也不相同。藉著改變位在陶磁片3及節點平面1〇間栽片 U之厚度尺寸,則便可能將驅動單元2的幅度控制在預 確定及預先選擇的幅渡。幅度的修錦如下,即較薄的叔片 12則產生較低的幅度,而較厚的墊片。則產生較高2 公幅度之所以可以修飾’是因爲電子_機械核合 變了。 另-種修料片12厚度的方式爲改變製造㈣12的材 枓二即將整片改用不同彈性係數的材料製造。—其他的修飾 ^ 變塾片12與密封單元1本體13間接觸平料介 ::尺寸。但是,墊片12抵边住陶磁片3的平面,必.需等 ;降磁片3的平面°較佳的修飾方式,則是第—個方式, 即改變墊片i 2的高度,爲 ^ 製造」同時可得到相同的幅度。式最⑽濟,也最容易 藉著板準陶磁片3,便可萃挥 .使了以選擇出—特定的墊片1 2,因 此’對於已經在製造階段的超音波 ^ 得在相作之單元i。 n,便u竺 ::述之說明可很清楚地看到’根據本發明 以製一$ | — 驅^單元2,其中在 __ 曲性振K會增殖,以危二面 常敏感的陶磁----- ·、。】驅動單元2上非 藉著採用根據本發明之裝 行控制,使密封單 ι對製造中密封單元進 不是由陶礎忠。這些幅度則 巧3的特性差異所控制, 能降低設定在陶磁片3上之標準要求…個理由’便可 f請先閲讀背面之注·意事項•再填寫本頁} 裝--- 訂 A 7 ' -B7 五、發明説明(8 ) 本發明之範圍並不僅限制於揭露在圖中之實施例,在不 脱離以下申請專利範圍之精神及範圍下,可以有許多不同 之修飾實施。
m II - -- H - ---- 1- - II - -I 士^-一, II - - -I - 1 - I! m TW 、-0 (請先閱讀背面之注意事項_再填寫本百C 經濟部中央標準局員工消費合作社印製 -11 本紙杀尺度適用中g國家標準(CNS ) A4規格(210 X 297公釐)

Claims (1)

  1. 319^7n 0329號專利申請案 申請專利範圍修正本(86车7 、 A8 B8 C8 D8 煩請委與明示本案是否變更實質- 經濟部中央標準局貝工消費合作社印製 六、申請專利範圍 1·—種用於超音波密封單元(1)之驅動單元(2)之裝置,該 型驅動裝置(2)包括多數個壓電陶磁片(3)交錯地設置在 導電金屬板(4)之間,該金屬板係與一直流電源連接,以 及包括一平衡荷重(5)及一夹扣螺絲(6),該超音波密封 單元(1)包括一均勻本體(13),其上固定安裝該驅動單元 (2) ’其特徵在於該超音波密封單元(1)之陶磁片(3 )及本 體(13)之間設置一整片(12),其構成該陶磁片(3)及本體 (Π)間之間隔元件(Η)。該墊片(I2)容許該超音波單元進 行振盪,但是可以防止殘存撓曲應力傳遞至該驅動單元 (2)。 2.根據申請專利範圍第1項之裝置,其特徵在於該墊片(12) 最好是由彈性係數低於該超_旁波密封單元(丨)本體(13)材 料彈性係數之材料製造,同時該彈性係數最好低於該陶 磁之彈性係數^ 3·根據申請專利範圍第1項之裝置,其特徵在於該整片(12) 抵迫該陶磁片(3)之接觸平面,而與該陶磁片(3)抵迫該 替片(12)之接觸平面相同。 4. 根據申請專利範圍第1項之裝置,其特徵在於該超音波 密封單元(1)之本體(13)係採用鈦製造;及該墊片(12)係 採用鋁製造。 - 5. 根據申請專利範圍第1項之裝置,其特徵在於該超音波 密封單元(1)之本體(13)係槔用鋁製造;及該墊片(12)係 採用路製造。 6. 根據申請專利範圍第1項至第5項中任何—項之裝置,其 本紙張尺度適财關家標準(CNS ) ( 210><297公瘦) 裝 訂 ·、泉 . I * (請先閲讀背面之注意事項再填寫本頁)
    特徵在於該墊片(12)經過選擇而具有—* 超音波密封單元⑴之幅度係控制在^ ^寻截 幅度。 頂先確疋、選擇之 7. 根據申請專利範圍第!項至第5项中任何一工、 特徵在於該整片(12)係選自預先確定^ ^裝置’其 使得該超音波密封單元⑴之幅度係控二=料, 選擇之幅度。 預先確定、 8. 根據申請專利範圍第1項至第5項中任何—嚷、 特徵在於該墊片(12)抵迫該超音波密封、<裝置,其 〈接觸平面係經過特別選擇,使得該超音坡密封时 之幅度係控制在一預先確定\、選擇之幅度。 請· 先 閔 讀 背 ιέ 之 注 意 事 項 再 球r 寫 本 頁 裝 訂 經濟部中央標準局員工消費合作社印製 -紙 本 準 標 家 國 國 一中 用 釐 公 7 29
TW085110329A 1995-06-19 1996-08-24 TW319917B (zh)

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CA2179446A1 (en) 1996-12-20
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SE9502226L (sv) 1996-12-20
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ATE203969T1 (de) 2001-08-15
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EP0749900B1 (en) 2001-08-08
BR9602833A (pt) 1998-10-06
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