CN1078862C - 超声密封装置的驱动装置的结构 - Google Patents

超声密封装置的驱动装置的结构 Download PDF

Info

Publication number
CN1078862C
CN1078862C CN96111081A CN96111081A CN1078862C CN 1078862 C CN1078862 C CN 1078862C CN 96111081 A CN96111081 A CN 96111081A CN 96111081 A CN96111081 A CN 96111081A CN 1078862 C CN1078862 C CN 1078862C
Authority
CN
China
Prior art keywords
counterbalanced weight
groove
actuating device
unit
drive unit
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.)
Expired - Lifetime
Application number
CN96111081A
Other languages
English (en)
Other versions
CN1141401A (zh
Inventor
M·拉比
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of CN1141401A publication Critical patent/CN1141401A/zh
Application granted granted Critical
Publication of CN1078862C publication Critical patent/CN1078862C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • 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
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods 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
    • B06B1/0611—Methods 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
    • B06B1/0618—Methods 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'
    • 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
    • B29C66/80—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
    • B29C66/8145—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 constructional aspects 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
    • B29C66/81—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
    • B29C66/8167—Quick change joining tools or surfaces
    • 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
    • B29C66/9516—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 amplitude
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods 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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—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 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
    • B29C66/72328—Paper
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02—Aluminium

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)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

本发明是关于超声密封装置(1)的驱动装置(2)的一种结构。驱动装置(2)包括若干压电陶瓷片(7)，这些片中间没有与一交流电源相连的导电金属片(8)。陶瓷片(7)和金属片(8)及平衡重(9)通过压紧螺钉(10)连接在一起，压紧螺钉(10)一方将驱动装置(2)固定到超声密封装置(1)上，一方面给驱动装置(2)一压紧力。平衡重(9)有一内周面和一外周面。为了在陶瓷片(7)上获得均衡压力载荷，在平衡重(9)的内径中设置一凹槽(2)。

Description

超声密封装置的驱动装置的结构
本发明涉及超声密封装置的驱动装置的一种结构，该驱动装置包括若干压电陶瓷片、一个具有内、外周面的平衡重和一个压紧螺钉，陶瓷片之间设有与一个交流电源相连的导电金属片。
一种传统的超声密封装置，通常包括一转换器、增强器和角状物。在将电振荡转换成机械振动的转换器或变换器中，有某些形式的与交流电源相连的驱动装置。这种类型的超声密封装置在瑞典专利申请NO.SE9300918-1(一种小型密封装置)被描述过，它也具有一个驱动装置。这种密封装置有构成装置的固定点的中央节平面、环绕驱动装置的反作用体和具有长且窄的密封面的角状物。这种密封装置已被设计和制造，特别用来安置在灌装机器有限的有效空间内，这种灌装机器用于将液体物质灌装到一次性使用可弃型的包装袋内。
通常的超声密封装置的驱动装置包括若干压电陶瓷片，它们被夹在与一交流电源相连的若干导电金属片之间，陶瓷片由压紧螺钉固定到密封装置上，同时压紧螺钉也将平衡重压紧就位。
假设通常作用于平衡重和陶瓷片的压紧力较高，通常为25MPa或更高，这将导致较厚的平衡重也会产生变形，以致于压电陶瓷片上的载荷分布产生畸变。平衡重的厚度通常小于它的直径的一半。自然，较厚的平衡重可减小变形并使陶瓷片得到较均匀的荷载分布。但是，平衡重也不能太厚，因为平衡重太厚必然使陶瓷片数量减少或者厚度变小。不均匀分布的荷载导致陶瓷片上产生极不适宜的载荷。陶瓷片是脆的，而且对任何形式的拉伸应力和弯曲应力都很敏感。
在陶瓷片上获得更均匀一些载荷分布的一种方法是应用一种沿水平方向分割开的平衡重。然而内在的缺点是平衡重的每一部分将相当的薄。这同样也导致每一部分产生较大弹性变形。结果由于不可避免的变形而不能得到完全均匀的荷载分布。此外，分割开的平衡重生产困难而且费用高。较大程度的弹性变形也引起接触表面产生噪声。而且，实验表明分割开的平衡重产生较大的能量损失。
本发明的一个目的是获得一种具有一平衡重的驱动装置，该平衡重在密封装置工作时，以尽可能均匀的方式将载荷分布于压电陶瓷片的全部表面。
本发明的另一个目的是能制造一种克服原分割开的平衡重的内在缺点的驱动装置用的平衡重。
按照本发明上述目的和其它的目的，通过对在本说明书技术领域部分描述的那种形式的驱动装置的结构给出特征已达到，所述特征为：为使压紧载荷均匀分布，在平衡重的内周面开设一个凹槽。
下面将参照附图更详细地描述本发明的一个较佳实施例。
图1是一个超声密封装置的透视图。
图2是表示传统的驱动装置载荷分布的示意图。
图3是表示本发明的驱动装置载荷分布的示意图。
图4是表示本发明的驱动装置简图。
每一种超声密封装置1(例如象图1中所描述的密封装置)，都必须有一驱动装置2。图1中的密封装置1专用于安装在灌装机器的有限空间内，该机器用于将液体食物装入一次性使用的包装袋，整个密封装置1的长度由仅仅半个波长构成。除驱动装置2以外，密封装置1还设有环绕驱动装置2的反作用体3，固定密封装置的中央节平面4和一个具有一个长且窄的密封面6的角状物5。本发明的结构当然可以用于传统的超声密封装置1的驱动装置2，这种传统形式的超声密封装置由转换器，增强器和角状物组成。
密封装置1的驱动装置2与一交流电源相连(未示出)，把电压转换成机械位移，引起振荡使装置1起密封作用。驱动装置2包括若干具有内、外周面的压电陶瓷片7。在压电陶瓷片7之间设有导电金属片8，该金属片8最好用镍或铍青铜制成。金属片8与一交流电源(图中未示)相连，所以，压电陶瓷片7之间是并联的。
压电陶瓷片7可承受极大的压应力，但很脆且对拉伸应力和弯曲应力很敏感。因此，当超声密封装置1工作时，压电陶瓷片7总是处于受压状态下，这通过施加大于驱动装置2产生最大振幅时的力的压紧力实现，此压紧力由平衡重9和压紧螺钉10产生。
由具有内、外周面金属片构成的平衡重9用尽可能坚硬的材料制成，如钢。平衡重9一方面用来在压电陶瓷片7上分布压紧力，另一方面作出一反作用质量获得驱动装置2打算激发的特殊共振频率。压紧螺钉10在一定压紧力下将平衡重9、陶瓷片7和金属片8固定在一起，结成一个装置，也将驱动装置2固定到密封装置1中。
如果陶瓷片7对不均匀荷载是敏感的，则希望压紧力尽可能均匀分布在陶瓷片7上。然而，测量显示，图2所示的通常的平衡重在高压紧力(通常25MPa或更高)下产生变形，所以平衡重9的内周受的压力比外周大。因为陶瓷很脆所以在陶瓷片7的边缘有较大荷载很不适宜。这一问题在某种程度上由一种分割开的平衡重9解决了，这种平衡重9使荷载稍均匀分布。然而，分割开的结果是平衡重更薄而弹性更大。由于平衡重各部分的不可避免的变形，最终不能得到完全均匀分布的荷载。由于弹性增加，分割开的平衡重9的各个薄的部分的接触表面更易产生噪声。除此之外，分割开的平衡重9产生大量能量损失。
本发明试图获得如图3所示的压紧荷载分布效果。如图3和4所示，按照本发明，通过在平衡重9内周面开设一凹槽12即可得到上述效果。在平衡重9内周面开设凹槽12后，沿平衡重9中材料延伸的力线向外周偏移，即使当平衡重的厚度是它的直径一半时，压紧载荷也将均匀分布在陶瓷片7的整个表面上。
凹槽12绕平衡重9整个内周一圈，并且位于平衡重9中央。凹槽12可以是直的、U形或V形的。凹槽12还应有一平缓倒圆13，即倒圆13尽可能大。在此较佳实施例中，凹槽12是V形的。较小的倒圆13或直角可导致平衡重9的材料产生疲劳裂缝。凹槽12宽度最大限度为平衡重9的厚度A的20％-80％。在最佳实施例中，凹槽12宽度为平衡重9厚度A的40-50％。凹槽12的深度为平衡重9内、外周面间厚度B的15％至40％，在最佳实施例中，凹槽12深度为平衡重9材料厚度B的20％-30％。如图3、4所示，平衡重9可以有不同的直径。在平衡重9上部分，内径D1由压紧螺钉10的直径决定。在平衡重9的下部，内径D2由陶瓷片7的内径决定。直径D2应当与陶瓷片7的内径相同。
从上描述中可以看出，本发明给出了超声密封装置1的驱动装置2的一种结构，它能使陶瓷片7上的压紧载荷更平均分布。采用这种结构的驱动装置2比传统的驱动装置2效果好，而且使用寿命长。
不应认为本发明仅限于上述内容和在附图中表示的内容，不脱离所附的权利要求的精神和范围可产生许多变型。

Claims (5)

1.应用于超声密封装置(1)的驱动装置(2)的一种结构，该驱动装置(2)包括若干压电陶瓷片(7)、一个具有内外周面的平衡重(9)和压紧螺钉(10)，压电陶瓷片(7)中间设有若干与交流电源相连的导电金属片(8)，其特征在于，为使压紧载荷均匀分布，在平衡重(9)的内周面开设一凹槽(12)。
2.如权利要求1所述结构，其特征在于，凹槽(12)设置在平衡重(9)内周面的中央。
3.如权利要求1所述结构，其特征在于，凹槽(12)是V形的。
4.如权利要求1所述结构，其特征在于，凹槽(12)的大宽度为平衡重(9)的厚度(A)的20％-80％。
5.如权利要求1所述结构，其特征在于，凹槽(12)的深度为平衡重(9)的厚度(B)的15％-40％。
CN96111081A 1995-06-19 1996-06-19 超声密封装置的驱动装置的结构 Expired - Lifetime CN1078862C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9502226 1995-06-19
SE9502226A SE9502226L (sv) 1995-06-19 1995-06-19 Anordning vid en drivenhet för en ultraljudsförseglingsenhet

Publications (2)

Publication Number Publication Date
CN1141401A CN1141401A (zh) 1997-01-29
CN1078862C true CN1078862C (zh) 2002-02-06

Family

ID=20398670

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96111081A Expired - Lifetime CN1078862C (zh) 1995-06-19 1996-06-19 超声密封装置的驱动装置的结构

Country Status (14)

Country Link
US (1) US5865946A (zh)
EP (1) EP0749900B1 (zh)
JP (1) JP3727724B2 (zh)
KR (1) KR100241245B1 (zh)
CN (1) CN1078862C (zh)
AT (1) ATE203969T1 (zh)
BR (1) BR9602833A (zh)
CA (1) CA2179446C (zh)
DE (1) DE69614322T2 (zh)
ES (1) ES2158975T3 (zh)
MX (1) MX9602410A (zh)
RU (1) RU2162814C2 (zh)
SE (1) SE9502226L (zh)
TW (1) TW319917B (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999048759A1 (fr) * 1998-03-23 1999-09-30 Shikoku Kakoki Co., Ltd. Scelleuse a ultrason
US6392327B1 (en) 2000-03-29 2002-05-21 James L. Sackrison Sonic transducer and feedback control method thereof
US6924585B2 (en) 2002-09-23 2005-08-02 The Crest Group, Inc. Sleeved ultrasonic transducer
EP2457683A1 (de) * 2010-11-25 2012-05-30 Telsonic Holding AG Torsionales Schweissen
EP2789450A1 (de) 2013-04-09 2014-10-15 Telsonic Holding AG Vorrichtung zum Verschweissen mittels Ultraschall
CN103272754A (zh) * 2013-05-31 2013-09-04 桂林市啄木鸟医疗器械有限公司 一种换能器
CN104653555B (zh) * 2015-02-10 2017-06-16 北京航空航天大学 一种封装型压电陶瓷预紧装置
US11308930B2 (en) * 2017-11-09 2022-04-19 Imasen Electric Industrial Co., Ltd. Electronic horn
CN111672730B (zh) * 2020-05-18 2021-03-05 科益展智能装备有限公司 一种换能器、其组装方法及超声波焊接装置
IT202100010763A1 (it) * 2021-04-28 2022-10-28 St Microelectronics Srl Procedimento per fabbricare dispositivi a semiconduttore, componente e dispositivo a semiconduttore corrispondenti

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4014846A1 (de) * 1990-05-09 1991-11-14 Schmidbauer Kg Elma Hans Vorrichtung zur erzeugung von ultraschall
EP0615907A1 (en) * 1993-03-19 1994-09-21 Tetra Laval Holdings & Finance SA A device for ultrasonic sealing

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184842A (en) * 1961-08-03 1965-05-25 Aeroprojects Inc Method and apparatus for delivering vibratory energy
US3175406A (en) * 1963-03-25 1965-03-30 Bell Telephone Labor Inc Mechanical amplitude transformer
FR1387034A (fr) * 1963-08-02 1965-01-29 Alcatel Sa Perfectionnements aux vibrateurs composites pour machines de soudage ou d'usinage ultrasonore
US3368085A (en) * 1965-11-19 1968-02-06 Trustees Of The Ohio State Uni Sonic transducer
US3524085A (en) * 1968-05-09 1970-08-11 Branson Instr Sonic transducer
GB1331100A (en) * 1969-11-03 1973-09-19 Crest Ultrasonics Corp Transducer suitable for use with ultrasonic processing tanks
CA885414A (en) * 1970-06-19 1971-11-09 L. Miller Hugh Ultrasonic welding of thermoplastics
US3772538A (en) * 1973-01-08 1973-11-13 Kane Corp Du Center bolt type acoustic transducer
US4074152A (en) * 1974-09-30 1978-02-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Ultrasonic wave generator
US4363992A (en) * 1981-01-26 1982-12-14 Branson Ultrasonics Corporation Resonator exhibiting uniform motional output
JPS58196874A (ja) * 1982-05-12 1983-11-16 多賀電気株式会社 超音波処理装置
US4737939A (en) * 1983-05-23 1988-04-12 Raytheon Company Composite transducer
US4607185A (en) * 1985-02-01 1986-08-19 American Hospital Supply Corporation Ultrasonic horn assembly
US4651043A (en) * 1985-10-23 1987-03-17 Branson Ultrasonics Corporation Resonator exhibiting uniform motional output
JPH0248153A (ja) * 1988-08-04 1990-02-16 Mitsubishi Electric Corp 超音波振動体の支持装置
US5057182A (en) * 1990-01-19 1991-10-15 Sonokinetics Group Ultrasonic comb horn and methods for using same
JP2714261B2 (ja) * 1990-12-14 1998-02-16 キヤノン株式会社 振動子および振動装置
US5196079A (en) * 1991-01-18 1993-03-23 Branson Ultrasonics Corporation Method and apparatus for joining thermoplastic workpieces by high frequency vibrations
US5443240A (en) * 1994-02-09 1995-08-22 Branson Ultrasonics Corporation Mounting means for vibration member

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4014846A1 (de) * 1990-05-09 1991-11-14 Schmidbauer Kg Elma Hans Vorrichtung zur erzeugung von ultraschall
EP0615907A1 (en) * 1993-03-19 1994-09-21 Tetra Laval Holdings & Finance SA A device for ultrasonic sealing
CN1093330A (zh) * 1993-03-19 1994-10-12 利乐拉瓦尔集团及财务有限公司 超声密封设备

Also Published As

Publication number Publication date
ES2158975T3 (es) 2001-09-16
KR100241245B1 (ko) 2000-03-02
CN1141401A (zh) 1997-01-29
BR9602833A (pt) 1998-10-06
MX9602410A (es) 1997-02-28
CA2179446C (en) 2005-11-15
ATE203969T1 (de) 2001-08-15
TW319917B (zh) 1997-11-11
KR970001154A (ko) 1997-01-21
RU2162814C2 (ru) 2001-02-10
SE9502226L (sv) 1996-12-20
US5865946A (en) 1999-02-02
SE9502226D0 (sv) 1995-06-19
JP3727724B2 (ja) 2005-12-14
EP0749900B1 (en) 2001-08-08
DE69614322D1 (de) 2001-09-13
JPH09122588A (ja) 1997-05-13
DE69614322T2 (de) 2001-11-22
CA2179446A1 (en) 1996-12-20
EP0749900A1 (en) 1996-12-27

Similar Documents

Publication Publication Date Title
CN1078862C (zh) 超声密封装置的驱动装置的结构
CN1042816C (zh) 超声密封设备
US5798599A (en) Ultrasonic transducer assembly using crush foils
CN1093785C (zh) 超声密封装置的驱动装置的结构
CN1855686A (zh) 超声波马达
CN1268053C (zh) 振动波驱动装置
CA1292267C (en) Ultrasonic driving device
CN1088632C (zh) 干扰振型的共振频率的调节方法
Petit et al. A piezomotor using longitudinal actuators
CN1157916A (zh) 振动发生器
AU723621B2 (en) An arrangement in a drive unit for an ultrasound sealing unit
JP2615953B2 (ja) 超音波モータとその駆動方法
CN217319408U (zh) 一种纸箱生产用原料压缩装置
JPH0150196B2 (zh)
JPH05344759A (ja) 超音波モータ
JPH09285149A (ja) 振動アクチュエータ及びその駆動方法
JPS63217984A (ja) 超音波駆動装置
JPH0345174A (ja) 超音波振動子及び超音波モータ
JPH0655139A (ja) 超音波振動子
CA1301230C (en) Ultrasonic driving device
JPS61120678A (ja) 超音波ねじり振動子
JPH0393479A (ja) 超音波モータ
JPS62155782A (ja) 超音波モータ用の超音波振動子
JPS63124783A (ja) 非線形共振系を用いた超音波モ−タ
JPH06276763A (ja) 振動モータ

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20020206

EXPY Termination of patent right or utility model