MXPA05013527A - Montaje de balancin ultrasonico. - Google Patents

Montaje de balancin ultrasonico.

Info

Publication number
MXPA05013527A
MXPA05013527A MXPA05013527A MXPA05013527A MXPA05013527A MX PA05013527 A MXPA05013527 A MX PA05013527A MX PA05013527 A MXPA05013527 A MX PA05013527A MX PA05013527 A MXPA05013527 A MX PA05013527A MX PA05013527 A MXPA05013527 A MX PA05013527A
Authority
MX
Mexico
Prior art keywords
mount
horn
resonant frequency
ultrasonic horn
inner portion
Prior art date
Application number
MXPA05013527A
Other languages
English (en)
Spanish (es)
Inventor
Gopal B Haregoppa
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of MXPA05013527A publication Critical patent/MXPA05013527A/es

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B23K20/106—Features related to sonotrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K5/00—Gas flame welding
    • B23K5/20—Gas flame welding making use of vibrations, e.g. supersonic 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
    • 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
    • B29C65/085—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 sonotrode
    • 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
    • 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
    • B29C66/81—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
    • 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
    • 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
    • B29C66/83417—Roller, cylinder or drum types said rollers, cylinders or drums being hollow
    • 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
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring 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
    • B29C66/9512—Measuring 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 frequency
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring 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
    • B29C66/9513—Measuring 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 characterised by specific vibration frequency values or ranges
    • 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
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring 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
    • B29C66/9517—Measuring 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 characterised by specific vibration amplitude values or ranges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
MXPA05013527A 2003-06-13 2004-04-22 Montaje de balancin ultrasonico. MXPA05013527A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/461,118 US6786384B1 (en) 2003-06-13 2003-06-13 Ultrasonic horn mount
PCT/US2004/012334 WO2005002746A2 (en) 2003-06-13 2004-04-22 Ultrasonic horn mount

Publications (1)

Publication Number Publication Date
MXPA05013527A true MXPA05013527A (es) 2006-04-05

Family

ID=32927741

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05013527A MXPA05013527A (es) 2003-06-13 2004-04-22 Montaje de balancin ultrasonico.

Country Status (7)

Country Link
US (1) US6786384B1 (cg-RX-API-DMAC10.html)
EP (1) EP1633497B1 (cg-RX-API-DMAC10.html)
JP (1) JP4755102B2 (cg-RX-API-DMAC10.html)
KR (1) KR101135808B1 (cg-RX-API-DMAC10.html)
BR (1) BRPI0411284B1 (cg-RX-API-DMAC10.html)
MX (1) MXPA05013527A (cg-RX-API-DMAC10.html)
WO (1) WO2005002746A2 (cg-RX-API-DMAC10.html)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7243894B2 (en) * 2002-02-15 2007-07-17 3M Innovative Properties Company Mount for vibratory elements
KR101197995B1 (ko) * 2005-01-03 2012-11-05 쓰리엠 이노베이티브 프로퍼티즈 컴파니 초음파 용접 시스템의 혼과 앤빌 사이의 갭을 제어하기위한 방법 및 장치
US7644746B2 (en) 2005-03-23 2010-01-12 3L-Ludvigsen A/S Rotary ultrasonic sealer
DE102005063230B3 (de) * 2005-12-23 2007-07-05 Herrmann Ultraschalltechnik Gmbh & Co. Kg Vorrichtung zum Ultraschallbearbeiten eines Werkstücks
KR100804255B1 (ko) * 2007-12-31 2008-02-18 서옥순 초음파 용착기의 혼 제조방법
US7718022B2 (en) * 2008-05-15 2010-05-18 3M Innovative Properties Company Resonant nodal mount for linear ultrasonic horns
US8113258B2 (en) * 2008-07-08 2012-02-14 Sonics & Materials Inc. Ultrasonic welding device
US8082966B2 (en) 2010-03-12 2011-12-27 Edison Welding Institute, Inc. System for enhancing sonotrode performance in ultrasonic additive manufacturing applications
JP5878299B2 (ja) * 2010-04-27 2016-03-08 株式会社アドウェルズ 超音波振動切断装置
DE102013103887A1 (de) * 2013-04-17 2014-10-23 Schunk Sonosystems Gmbh Ultraschallschweißvorrichtung
US20150210003A1 (en) * 2014-01-28 2015-07-30 Frito-Lay Noth America, Inc. Transverse Sonotrode Design for Ultrasonic Welding
KR101665873B1 (ko) * 2015-06-03 2016-10-13 주식회사 포스코 용접장치
JP2020006969A (ja) * 2018-07-03 2020-01-16 株式会社イシダ 超音波シールユニット
CN109318064B (zh) * 2018-11-09 2023-05-26 河南理工大学 法兰盘具有双减振和双密封的超声平面磨削方法及系统
DE102018132838A1 (de) * 2018-12-19 2020-06-25 Herrmann Ultraschalltechnik Gmbh & Co. Kg Ultraschallschweißanlage mit Halterung
DE102018132839A1 (de) * 2018-12-19 2020-06-25 Herrmann Ultraschalltechnik Gmbh & Co. Kg Ultraschallschweißanlage mit Abstützelement
JP6757837B1 (ja) * 2019-08-30 2020-09-23 株式会社高田工業所 超音波共振体の支持構造及び超音波振動加工装置
DE102022109304A1 (de) * 2022-04-14 2023-10-19 Ms Ultraschall Technologie Gmbh Rotationssonotrode
EP4719702A2 (en) * 2023-05-25 2026-04-08 3M Innovative Properties Company Methods of making rotary acoustic horns

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE25119E (en) * 1956-10-04 1962-01-30 rawding
GB877966A (en) * 1959-04-10 1961-09-20 Aeroprojects Inc Vibratory devices and supports therefor
US3350582A (en) * 1965-01-13 1967-10-31 Union Special Machine Co Vibratory apparatus
US3772538A (en) * 1973-01-08 1973-11-13 Kane Corp Du Center bolt type acoustic transducer
US4647336A (en) 1985-03-08 1987-03-03 Kimberly-Clark Corporation Rebuildable support assembly
JPH086745B2 (ja) * 1985-08-28 1996-01-29 インガーソル・ランド・カンパニー モノレ−ル・クレ−ン・キヤリツジ
JPH0248153A (ja) 1988-08-04 1990-02-16 Mitsubishi Electric Corp 超音波振動体の支持装置
GB9006989D0 (en) * 1990-03-28 1990-05-23 Atomic Energy Authority Uk Sonochemical apparatus
GB9226932D0 (en) * 1992-12-24 1993-02-17 Molins Plc Web cutting device
JP3276460B2 (ja) * 1993-06-15 2002-04-22 株式会社富士通宮城エレクトロニクス ワイヤボンディング装置
US5443240A (en) 1994-02-09 1995-08-22 Branson Ultrasonics Corporation Mounting means for vibration member
US5603445A (en) * 1994-02-24 1997-02-18 Hill; William H. Ultrasonic wire bonder and transducer improvements
US5595328A (en) * 1994-12-23 1997-01-21 Kulicke And Soffa Investments, Inc. Self isolating ultrasonic transducer
US5660679A (en) 1995-01-31 1997-08-26 Kimberly-Clark Worldwide, Inc. Rotary sealing system
GB2299046A (en) * 1995-03-21 1996-09-25 Nestle Sa Ultrasonic cutting device
JP3078231B2 (ja) 1995-08-22 2000-08-21 株式会社アルテクス 超音波振動接合装置
US5772100A (en) 1996-03-22 1998-06-30 American Technology, Inc. Ultrasonic welder with dynamic nodal horn support
US5976316A (en) 1998-05-15 1999-11-02 3M Innovative Properties Company Non-nodal mounting system for acoustic horn
US6059923A (en) * 1998-09-18 2000-05-09 3M Innovative Properties Company Rotary acoustic horn with sleeve
US6457626B1 (en) * 2001-01-29 2002-10-01 Branson Ultrasonics Corporation Symmetric ultrasonic rotary horn
US6634539B2 (en) * 2001-09-21 2003-10-21 3M Innovative Properties Company Adjustable-gap rotary ultrasonic horn mounting apparatus and method for mounting
US6613171B2 (en) * 2001-12-18 2003-09-02 Kimberly-Clark Worldwide, Inc. Rotary ultrasonic bonder or processor capable of fixed gap operation
US6547903B1 (en) * 2001-12-18 2003-04-15 Kimberly-Clark Worldwide, Inc. Rotary ultrasonic bonder or processor capable of high speed intermittent processing
US7243894B2 (en) * 2002-02-15 2007-07-17 3M Innovative Properties Company Mount for vibratory elements

Also Published As

Publication number Publication date
WO2005002746A2 (en) 2005-01-13
EP1633497B1 (en) 2020-12-02
KR101135808B1 (ko) 2012-04-16
KR20060021892A (ko) 2006-03-08
US6786384B1 (en) 2004-09-07
JP2007501706A (ja) 2007-02-01
EP1633497A2 (en) 2006-03-15
BRPI0411284A (pt) 2006-08-01
WO2005002746A3 (en) 2005-05-06
JP4755102B2 (ja) 2011-08-24
BRPI0411284B1 (pt) 2018-03-06

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