JPH07323478A - Method and apparatus for welding pour plug - Google Patents

Method and apparatus for welding pour plug

Info

Publication number
JPH07323478A
JPH07323478A JP6118708A JP11870894A JPH07323478A JP H07323478 A JPH07323478 A JP H07323478A JP 6118708 A JP6118708 A JP 6118708A JP 11870894 A JP11870894 A JP 11870894A JP H07323478 A JPH07323478 A JP H07323478A
Authority
JP
Japan
Prior art keywords
ultrasonic
welding
spout
plug
packaging bag
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.)
Pending
Application number
JP6118708A
Other languages
Japanese (ja)
Inventor
Yasuo Noguchi
康夫 野口
Mitsuharu Katayama
光治 片山
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.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
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 Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP6118708A priority Critical patent/JPH07323478A/en
Priority to US08/353,431 priority patent/US5606844A/en
Priority to AU80365/94A priority patent/AU672932B2/en
Priority to DE69403767T priority patent/DE69403767T2/en
Priority to EP19940119700 priority patent/EP0661208B1/en
Priority to ES94119700T priority patent/ES2105481T3/en
Priority to CA 2138343 priority patent/CA2138343C/en
Priority to KR1019940035885A priority patent/KR0181350B1/en
Publication of JPH07323478A publication Critical patent/JPH07323478A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
    • 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
    • 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
    • B29C65/088—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using several cooperating sonotrodes, i.e. interacting with each other, e.g. for realising the same joint
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • B29C66/53262—Enclosing spouts between the walls of bags, e.g. of medical bags
    • B29C66/53263—Enclosing spouts between the walls of bags, e.g. of medical bags said spouts comprising wings, e.g. said spouts being of ship-like or canoe-like form to avoid leaks in the corners
    • 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
    • B29C66/80—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
    • B29C66/81411—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2575/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D2575/583—Opening or contents-removing devices added or incorporated during package manufacture the non-integral spout having an elongate cross-sectional shape, e.g. canoe or boat shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To certainly seal a pour plug even when impurities are present on a seal surface while shortening a seal time by driving an ultrasonic actuator and an anvil opposed to each other on the axial line crossing the seal surface at a right angle in mutually synchronous relationship so as to open and close both of them to weld pour plug. CONSTITUTION:When a pour plug 1 is subjected to ultrasonic sealing after a packaging bag 7 is packed with a filler, an ultrasonic actuator 16 is oscillated before a horn 20 is brought into contact with a part 28 to be sealed and, by bringing the work end 21 of the horn 20 subjected to ultrasonic vibration into contact with the part 28 to be sealed under pressure, the ship-shaped flange 5 of a pour plug main body 2 and the seal layer applied to the inner surface of the packaging bag 7 are mechanically vibrated at high speed under ultrasonic frequency to be welded by friction heat and molecular heat. This mechanical high speed vibration is also propagated to the pour plug main body 2 and the ship-shaped flange 5 and the seal layer on the inner surface of the packaging bag 7 on the side brought into contact with the receiving part 24 of an anvil 17 under pressure are also subjected to mechanical high speed vibration at the same time to be welded by friction heat and molecular heat.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、内面に熱可塑性樹脂か
らなるシール層を有する包装袋に、熱可塑性樹脂からな
る注出栓を溶着する方法及びその装置に関するものであ
り、包装袋シール層と注出栓とを超音波振動により溶着
することにより、シール安定性に優れ、短時間溶着を可
能にし、且つ、シール面に夾雑物が存在していても確実
にシールができる注出栓溶着方法及びその装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for welding a pouring plug made of a thermoplastic resin to a packaging bag having a sealing layer made of a thermoplastic resin on its inner surface. By welding ultrasonic wave and the pouring plug with ultrasonic vibration, it has excellent sealing stability, enables welding for a short time, and can surely seal even if contaminants are present on the sealing surface. The present invention relates to a method and an apparatus thereof.

【０００２】[0002]

【従来の技術】従来より熱可塑性樹脂からなるシール層
を有する包装袋と、熱可塑性樹脂からなる注出栓とを溶
着又は接着する方法として、ヒートシールにより溶着す
る方法、接着剤を用いて接着する方法、高周波誘電加熱
或いは誘導加熱にて溶着する方法等がある。これらの
内、接着剤による方法は手間暇が掛かり、硬化時間を要
すると共に接着剤臭が残り、内容物によっては使用でき
ないものが多く実用上はあまり使用されていない。高周
波誘電加熱による方法は、高周波誘電加熱により発熱す
る熱可塑性樹脂が、ポリ塩化ビニール及びポリ塩化ビニ
リデンのように誘電体損の大きなものに限定され、ま
た、高周波誘導加熱の場合は、被加熱部が金属類の導電
体であって、被加熱物に誘起される渦電流によるオーム
損を利用して加熱を行う故、被加熱物である熱可塑性樹
脂に金属粉を練り込むとか、金属片を包装袋又は注出栓
に埋設することが必要であり用途が著るしく限定されて
しまう。ヒートシールによる方法は、包装袋外側から熱
盤により包装袋と注出栓とを圧接しながら加熱する方法
であり、伝熱を応用している故、原理が簡単であり、包
装袋の内面シール層と注出栓との材質が同じである限り
条件設定により確実に溶着できる故、よく使用される一
般的技術である。最近、超音波振動を応用した注出栓溶
着方式も一部提案されてきており、このようなものとし
ては、例えば、実開昭６０−１８７０３２号公報がある
が、これは包装袋として製袋する前、即ち、丸栓等の環
状シール面を持つ注出栓をプラスチックフィルムに予め
超音波溶着し、その後、包装袋として製袋する方式であ
り、その製袋機構上、包装袋の腹又は背にあたる部分に
注出栓を取り付けた形状にならざるを得ず、後工程であ
る内容物充填操作時に、腹部に付いている注出栓が邪魔
となり自動化を著るしく損ねると共に、充填口を再びシ
ールしなければならないという複雑な工程を経なければ
ならず、工業的には作業性、生産性共に劣る方式であ
る。2. Description of the Related Art Conventionally, as a method of welding or adhering a packaging bag having a sealing layer made of a thermoplastic resin and a spout plug made of a thermoplastic resin, a method of welding by heat sealing or an adhesive is used. And a method of welding by high frequency dielectric heating or induction heating. Among these, the method using an adhesive takes time and labor, requires a curing time, and leaves an adhesive odor, and many cannot be used depending on the contents, and are not used practically. In the method using high frequency dielectric heating, the thermoplastic resin that generates heat by high frequency dielectric heating is limited to those with a large dielectric loss, such as polyvinyl chloride and polyvinylidene chloride. Is a conductor of metal and performs heating by utilizing the ohmic loss due to the eddy current induced in the object to be heated, so that metal powder is kneaded into the thermoplastic resin, which is the object to be heated, or the metal piece is removed. Since it is necessary to bury it in a packaging bag or a pouring plug, its use is markedly limited. The heat sealing method is a method in which the packaging bag and the pouring plug are heated from the outside of the packaging bag while being pressed against each other with a heating plate.The principle is simple because heat transfer is applied, and the inner surface of the packaging bag is sealed. As long as the material of the layer is the same as that of the spout, it can be surely welded by setting the conditions, and is a commonly used general technique. Recently, a part of a spout welding method applying ultrasonic vibration has been proposed, and such a method is disclosed in, for example, Japanese Utility Model Laid-Open No. 60-187032, which is used as a packaging bag. Before, i.e., ultrasonic welding of a spout having an annular sealing surface such as a round plug to a plastic film in advance, and then making a bag as a packaging bag, because of its bag making mechanism, the belly of the packaging bag or There is no choice but to attach a pouring plug to the back part, and the pouring plug attached to the abdomen interferes with the operation of filling the contents, which is a post-process, and significantly impairs automation. This is a method in which workability and productivity are inferior industrially because a complicated process of resealing is required.

【０００３】次に、従来より最も多用されているヒート
シール方式による包装袋と注出栓との溶着方式を、図１
０、図１１及び図１２に従って説明する。図１０は、注
出栓１の全体図を示すものであり、注出栓本体２とキャ
ップ３から成る。注出栓本体２とキャップ３との締め付
け及び開栓は、各々に設けたネジ機構にて行なう。注出
栓２の材質は、熱可塑性樹脂からなり、射出成形等の成
形方式にて一般的には成形される。注出栓本体２の注出
栓シール部４の形状は、包装袋との溶着面積を広く取り
得る図に示すような舟型フランジ５の形状がよい。舟型
フランジ５の面上に溶着リブ６を１本ないし複数本設け
ることもある。キャップ３の材質は、熱可塑性樹脂等の
合成樹脂或いは、アルミニウム等の金属であって、注出
栓本体２との嵌合性と密封性を保証できる材質であれば
よい。図１１の（Ａ）は、包装袋７の上部の開口部８に
注出栓本体２を挿入する前の図、（Ｂ）は、注出栓本体
２を開口部８に挿入し溶着した状態を示す図である。包
装袋７の（Ａ）は、底部、両側部をヒートシール等の適
宜の方法で予めシールした所謂ゆる３方シール袋形状で
あり、その材質は、通常熱可塑性樹脂の単層或いは二層
以上の多層構造であるが、最内層の材質は、注出栓本体
２の注出栓シール部４と同材質としシール強度を維持す
るのが通常である。キャップ３は、包装袋７内に内容物
を充填後注出栓本体２をシールする場合は、予め注出栓
本体２にねじ込んだ状態とし、シール後内容物充填を行
なう場合ははずした状態でシールし、内容物を注出口９
より注入充填後キャップ３をねじ込む方式をとる。図１
２は、包装袋７に注出栓１を適宜の方法で挿入、位置決
め後、ヒートシールによりシールする主要構成を示すも
のである。対向するシール盤１０及びシール盤１１の先
端形状は、注出栓１の図１０に示す注出栓シール部４の
舟型フランジ５の形状を有し且つ図１１のシール耳部も
同時ヒートシールできるよう舟型フランジ５の形状の両
サイドに延長したストレート部１３を有する。Next, a welding method of a packaging bag and a pouring plug by a heat-sealing method which has been most frequently used in the past is shown in FIG.
0, and will be described with reference to FIGS. FIG. 10 shows an overall view of the spout plug 1, which comprises a spout body 2 and a cap 3. Tightening and opening of the spout main body 2 and the cap 3 are performed by a screw mechanism provided for each. The material of the spout 2 is made of a thermoplastic resin and is generally molded by a molding method such as injection molding. The shape of the pouring plug seal portion 4 of the pouring plug body 2 is preferably the shape of the boat-shaped flange 5 as shown in the figure which allows a wide welding area with the packaging bag. One or a plurality of welding ribs 6 may be provided on the surface of the boat-shaped flange 5. The cap 3 may be made of a synthetic resin such as a thermoplastic resin or a metal such as aluminum as long as it can ensure the fitting property and the sealing property with the spout body 2. FIG. 11A is a view before the spout body 2 is inserted into the opening 8 in the upper part of the packaging bag 7, and FIG. 11B is a state in which the spout body 2 is inserted into the opening 8 and welded. FIG. (A) of the packaging bag 7 has a so-called loose three-sided sealing bag shape in which the bottom and both sides are previously sealed by an appropriate method such as heat sealing, and the material thereof is usually a single layer or two or more layers of thermoplastic resin. However, the innermost layer is usually made of the same material as the pouring plug seal portion 4 of the pouring plug body 2 to maintain the sealing strength. The cap 3 is preliminarily screwed into the pouring plug body 2 when sealing the pouring plug body 2 after filling the contents in the packaging bag 7, and is removed when filling the content after sealing. Seal and pour contents 9
After the injection and filling, the cap 3 is screwed in. Figure 1
Reference numeral 2 shows a main configuration in which the spout 1 is inserted into the packaging bag 7 by an appropriate method, positioned, and then sealed by heat sealing. The tip shapes of the sealing board 10 and the sealing board 11 facing each other have the shape of the boat-shaped flange 5 of the dispensing plug sealing portion 4 of the dispensing plug 1 shown in FIG. 10, and the sealing ears of FIG. It has straight portions 13 extending on both sides in the shape of the boat-shaped flange 5 so as to be possible.

【０００４】シール盤１０及び１１は各々熱盤１４及び
１５と一体加工或いはボルト等で接続されており、シー
ル盤１０，１１及び熱盤１４，１５の材質は、アルミニ
ウム、ステンレス鋼、鋼等の金属からなり、熱盤１４，
１５には、カートリッジヒーターを埋め込むか或いは、
表面にヒーター板を貼り付ける等の加熱手段を有し、且
つヒートシールに適した温度に制御できるよう温度セン
サーを設置する。熱盤１４，１５は、図中矢印で示すよ
うに対向した状態で開閉移動させる。即ち、注出栓１を
包装袋７に挿入後、シール盤１０及び１１の対向するセ
ンター位置に包装袋７に挿入した注出栓１のセンターが
きた時点で、熱盤１４及び１５が閉まる方向に移動し、
注出栓１の舟型フランジ５を一定時間、適切な圧力で圧
接する事により、包装袋７の最内層であるシール層と舟
型フランジ５が加熱され溶着される。その後、熱盤１
４，１５を開く。この操作を２回以上繰り返す事によ
り、強固なヒートシールが達成できる。熱盤１４，１５
の駆動は、エアシリンダー、油圧シリンダー或いは、機
械的カム駆動等適宜な方法で行なう。１回のヒートシー
ルに要する時間は、包装袋７の材質、厚み、注出栓１の
舟型フランジ５の材質、シール所要面積及びシール圧接
圧力等によって異なるが、１〜３秒、標準的には１．５
秒程度掛かり、また１回のシール操作では十分なシール
強度が得られないため、２〜３回の繰り返しシールを行
ない、その後、シール部を急激に冷却し、シールはずれ
を防止するためのシール冷却工程も要し、生産性を上げ
るには、多々の限界がある。特に、包装袋７に注出栓１
をヒートシール後、内容物を図１１の（Ｂ）に示す注出
栓１の注出口９より充填する場合には、注出口９が小さ
い故、内容物を充填するに要する時間、即ち充填速度が
著るしく低下し、生産性が更に上がらなくなる。The sealing plates 10 and 11 are integrally machined with the heating plates 14 and 15 or connected by bolts or the like. The materials of the sealing plates 10 and 11 and the heating plates 14 and 15 are aluminum, stainless steel, steel and the like. Made of metal, heating plate 14,
15, a cartridge heater is embedded, or
It has a heating means such as pasting a heater plate on the surface, and a temperature sensor is installed so that the temperature can be controlled to a temperature suitable for heat sealing. The heating plates 14 and 15 are opened and closed while facing each other as shown by arrows in the figure. That is, the direction in which the heating plates 14 and 15 are closed when the center of the pouring plug 1 inserted into the packaging bag 7 comes to the center position where the sealing plates 10 and 11 face each other after the pouring plug 1 is inserted into the packaging bag 7. Move to
By pressing the boat-shaped flange 5 of the spout 1 at a proper pressure for a certain period of time, the innermost sealing layer of the packaging bag 7 and the boat-shaped flange 5 are heated and welded. After that, hot plate 1
Open 4,15. By repeating this operation twice or more, strong heat sealing can be achieved. Hot platen 14,15
Is driven by an appropriate method such as an air cylinder, a hydraulic cylinder, or a mechanical cam drive. The time required for one heat-sealing varies depending on the material and thickness of the packaging bag 7, the material of the boat-shaped flange 5 of the pouring plug 1, the required sealing area, the sealing pressure contact pressure, etc., but is typically 1 to 3 seconds. Is 1.5
It takes about a second, and sufficient sealing strength cannot be obtained with a single sealing operation. Repeated sealing is performed 2 to 3 times, and then the seal part is cooled rapidly to prevent the seal from coming off. It requires many steps, and there are many limitations to increase productivity. In particular, the spout plug 1 in the packaging bag 7
After heat-sealing, when filling the contents from the spout 9 of the spout 1 shown in FIG. 11 (B), since the spout 9 is small, the time required to fill the contents, that is, the filling speed. Markedly decreases, and productivity cannot further increase.

【０００５】これを解決すべく、図１１の（Ａ）に示す
包装袋７の開口部８の状態での内容物充填、即ち注出栓
１を取付ける前故、開口部を大きく取り得る状態で高速
充填し、しかる後注出栓１をヒートシールしようとする
場合には、内容物が液状である際には、液状内容物が包
装袋７のシール面に付着し易すく、これが夾雑物となり
ヒートシールの熱により気化し、シール面に気泡或いは
水泡状の所謂ゆるアバタが発生したり、更にこれが進行
するとシール面の袋側が破けてしまう等のシール不良を
起こすことが多く、また固形内容物が付着した場合に
は、全くシールできなくなるという不具合が発生し、内
容物保存性に対し、全く信頼性がなくなってしまう。特
に、内容物が食品の場合には、これらのシール不良部か
ら細菌が侵入し細菌汚染により腐敗してしまうし、内容
物が無菌性を必要とする薬剤の場合には、細菌感染を引
き起こすという、共に最悪の事態が発生する。In order to solve this, the contents are filled in the state of the opening 8 of the packaging bag 7 shown in FIG. 11 (A), that is, before the spout 1 is attached, so that the opening can be made large. When filling at a high speed and then heat-sealing the pouring plug 1, when the content is liquid, the liquid content easily adheres to the sealing surface of the packaging bag 7, which becomes a contaminant. It is often vaporized by the heat of the heat seal, and so-called loose avatars in the form of bubbles or water bubbles are generated on the sealing surface, and if this progresses, it often causes sealing defects such as tearing of the bag side of the sealing surface, and solid contents. If adhered, there is a problem that sealing cannot be performed at all, and the storability of the content is completely lost. In particular, when the contents are foods, bacteria infiltrate from these poorly sealed parts and rot due to bacterial contamination, and when the contents are drugs requiring sterility, they cause bacterial infection. , And the worst happens together.

【０００６】[0006]

【発明が解決しようとする課題】本発明は、熱可塑性樹
脂からなるシール層を有する包装袋に注出栓を溶着する
方式に関し、従来のヒートシールによる方式のこのよう
な問題点を解決するため種々の検討の結果なされたもの
であり、その目的とするところは、シール安定性に優
れ、短時間溶着を可能にし、且つシール面に夾雑物が存
在していても確実にシールができ、しかも構造が簡単
で、生産性に優れた注出栓溶着方法及びその装置を提供
するにある。DISCLOSURE OF THE INVENTION The present invention relates to a method of welding a pouring plug to a packaging bag having a sealing layer made of a thermoplastic resin, and solves such problems of the conventional heat sealing method. It has been made as a result of various studies, and its purpose is to have excellent seal stability, enable welding for a short time, and reliably seal even if there are impurities on the sealing surface, and (EN) A method and apparatus for welding a pouring plug having a simple structure and excellent in productivity.

【０００７】[0007]

【課題を解決するための手段】本発明は、熱可塑性樹脂
からなるシール層を有する包装袋に、熱可塑性樹脂から
なる注出栓を挿入後溶着する方式において、注出栓のシ
ール面に対し直交する軸線上に超音波周波数下における
機械的振動をする超音波アクチェーターを設置し、注出
栓を介して対向し、且つ注出栓のシール面に対して直交
する軸線上に、アンビルもしくは超音波アクチェーター
を設置すると共に、対向する超音波アクチェーターとア
ンビルもしくは超音波アクチェーターが注出栓のシール
面に対して直交する軸線上を相互に同期しながら閉開駆
動することにより溶着させることを第１の特徴、対向す
る超音波アクチェーター各々の共振周波数が異なった値
であることを第２の特徴、対向する超音波アクチェータ
ーを、振動子切替え機能を有する切替型発振器にて逐次
切替操作を行なわしめることにより、１台の超音波発振
器にて駆動させることを第３の特徴、超音波溶着させる
注出栓の舟型フランジ両面の各々に、幅０．２〜０．８
ｍｍ、高さ０．０５〜０．４ｍｍの溶着リブを１条ない
し複数条設け、舟型フランジ形状を構成する空間部内に
補強リブを複数個設け、補強リブと舟型フランジとの接
続箇所及び／もしくは、舟型フランジ接合部をアール形
状またはテーパー形状の肉盛り部を設けたことを第４の
特徴、ホーンの作業端形状及び／もしくはアンビルの受
け部形状が、注出栓本体の舟型フランジの溶着ベースの
山型形状部の半径寸法に包装袋肉厚の０．６〜１．４倍
の厚みに相当する寸法を付加した半径寸法であるホーン
山型形状部及び／もしくはアンビル山型形状部であり、
舟型フランジの溶着ベースの谷型形状部の半径寸法から
包装袋肉厚の０．６〜１．４倍の厚みに相当する寸法を
減じた半径寸法であるホーン谷型形状部及び／もしくは
アンビル谷型形状部であることを第５の特徴とする注出
栓の溶着方法及びその装置に関するものである。DISCLOSURE OF THE INVENTION According to the present invention, a sealing bag made of a thermoplastic resin is inserted into a packaging bag having a sealing layer and then welded to the packaging bag. An ultrasonic actuator that mechanically vibrates under ultrasonic frequency is installed on the orthogonal axis, and the anvil or super-position is placed on the axis facing the sealing surface of the dispensing plug and facing each other through the dispensing plug. The ultrasonic wave actuator is installed, and the opposing ultrasonic wave actuator and anvil or ultrasonic wave actuator are closed and opened in synchronization with each other on the axis orthogonal to the sealing surface of the spout plug to cause welding. The second feature is that the resonance frequencies of the opposing ultrasonic actuators have different values. The second feature is that the opposing ultrasonic actuators are switched between transducers. The third feature is to drive with one ultrasonic oscillator by performing sequential switching operation with a switching oscillator having a function, on each of both sides of the boat-shaped flange of the spout for ultrasonic welding, Width 0.2-0.8
mm, a height of 0.05 to 0.4 mm, and one or a plurality of welding ribs are provided. A plurality of reinforcing ribs are provided in the space forming the boat-shaped flange shape. The fourth feature is that the boat-shaped flange joint portion is provided with a rounded or tapered build-up portion, the working end shape of the horn and / or the receiving portion shape of the anvil is the boat shape of the spout body. Horn-shaped profile and / or anvil-shaped profile that has a radius corresponding to the thickness of the packaging bag 0.6 to 1.4 times the radius of the flange-shaped base of the welded base Is a shape part,
Horn valley-shaped portion and / or anvil having a radius dimension obtained by subtracting the dimension corresponding to the thickness of 0.6 to 1.4 times the wall thickness of the packaging bag from the radius dimension of the valley-shaped portion of the welding base of the boat-shaped flange A fifth aspect of the present invention relates to a method for welding a pouring plug and a device therefor, which is a valley-shaped portion.

【０００８】以下、本発明の実施例を図面に基づき詳述
する。図１は、本発明に基づく超音波方式の注出栓溶着
部を示すものであり、超音波アクチェーター１６とアン
ビル１７との組合せの場合の一実施例である。包装袋７
は、図１１と合わせて説明するが図１１Ａに示したもの
と同形状、即ち、底部、両側部をヒートシール等の適宜
の方法で予めシールしてある所謂ゆる３方シール袋形状
であり、包装袋７の開口部８の内面シール層が熱可塑性
樹脂であればよく、単層フィルム、多層フィルムから製
袋されたもの、アルミニウムや紙等の合成樹脂以外の材
質のフィルム単体またはこれらにプラスチックフィルム
を積層したフィルムから製袋された包装袋７の開口部８
部の内面シール層が熱可塑性樹脂で構成されたもの或い
は、コート、接着等の適宜の方法で熱可塑性樹脂からな
るシール層を構成したものであれば、材質、形状、構成
は問わない。また、注出栓１は、図１０と合わせて説明
するが、注出栓１の注出栓シール部４及び／または注出
栓シール部表面が熱可塑性樹脂からなるものであればよ
いが、包装袋７のシール層と同材質であれば、シール強
度を大きくとれ更によい。注出栓本体２の注出栓シール
部４の形状は、包装袋７との溶着面積を広く取り得る舟
型フランジ５の形状がよい。キャップ３の材質は、熱可
塑性樹脂等の合成樹脂或いは、アルミニウム等の金属で
あって、注出栓本体２との嵌合性と密封性を保証できる
ものであれば、材質、形状、構成は問わない。Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an ultrasonic-type pouring plug welding portion according to the present invention, which is an embodiment of a combination of an ultrasonic actuator 16 and an anvil 17. Packaging bag 7
11 will be described in combination with FIG. 11, but has the same shape as that shown in FIG. 11A, that is, a so-called loose three-sided bag shape in which the bottom and both sides are previously sealed by an appropriate method such as heat sealing, The inner sealing layer of the opening 8 of the packaging bag 7 may be made of a thermoplastic resin, such as a single-layer film, a bag made of a multilayer film, a film made of a material other than a synthetic resin such as aluminum or paper, or a plastic for these. Opening 8 of packaging bag 7 made from laminated films
Any material, shape, and configuration may be used as long as the inner seal layer of the part is made of a thermoplastic resin or the seal layer made of a thermoplastic resin is formed by an appropriate method such as coating or adhesion. Further, the spout 1 will be described with reference to FIG. 10, but the spout seal part 4 and / or the surface of the spout seal part of the spout 1 may be made of a thermoplastic resin, If the same material as the sealing layer of the packaging bag 7 is used, the sealing strength can be increased and it is even better. The shape of the pouring plug sealing portion 4 of the pouring plug main body 2 is preferably the shape of the boat-shaped flange 5 that allows a large welding area with the packaging bag 7. The material of the cap 3 is synthetic resin such as thermoplastic resin, or metal such as aluminum, and the material, shape, and configuration are not limited as long as the cap 3 can be fitted and sealed with the spout body 2. It doesn't matter.

【０００９】超音波アクチェーター１６は、超音波振動
子１８、ブースター１９、ホーン２０から基本的には構
成されるが、ホーン２０の作業端２１の振動振幅が超音
波溶着を行うに適切なる値がとれるのであるならば、ブ
ースター１９無しで、ホーン２０を超音波振動子１８に
直結してもよい。超音波振動子１８は電歪型振動子、磁
歪型振動子のどちらでもよいが、電気的エネルギーの機
械的エネルギーへの変換効率に優れる電歪型振動子が望
ましい。超音波共振周波数は１０〜１００ｋＨｚ、望ま
しくは１５〜４０ｋＨｚが異音が少なく高振幅をとれて
よい。ブースター１９の材質は、アルミニウム合金、鋼
或いはチタン合金が望ましいが、超音波周波数下の高速
振動に最も靱性が高く耐久性に優れるチタン合金が更に
望ましい。ブースター１９の振幅拡大率は、チタン合金
の場合、１．２〜４倍、望ましくは１．５〜２．５倍程
度に設計するのが応力集中によるクラックの発生を押さ
えられるので適切である。ホーン２０の材質は、デュラ
ルミン等の高張力アルミニウム合金、チタン合金等が靱
性が高く望ましい。形状的にはホーン２０に過度な振幅
拡大を設けずに済むよう、原則的にはブースター１９で
振幅拡大を行い、ホーン２０の振幅拡大率を１〜２倍程
度にするのが作業を行うホーン２０に無理が掛からず望
ましい。ホーン２０の作業端２１の振幅は１０〜１２０
μｍ、望ましくは３０〜９０μｍがよい。また、超音波
出力は電歪型振動子を用いた場合、０．５〜４ＫＷ、望
ましくは１．５〜３ＫＷが本目的には適している。超音
波アクチェーター１６の超音波振動子１８は、高周波ケ
ーブル２２にて超音波発振器２３に接続する。アンビル
１７はその先端がホーン２０の作業端２１と同形状の受
け部２４とアンビル本体２５とから構成され、受け部２
４とアンビル本体２５とは一体加工もしくは、受け部２
４をアンビル本体２５にボルト等の締結手段で接続して
もよい。アンビル１７の材質は、アルミニウム、アルミ
ニウム合金、鉄又はステンレス鋼等の金属、もしくはこ
れらの組み合わせで構成するのがよい。The ultrasonic actuator 16 is basically composed of an ultrasonic vibrator 18, a booster 19 and a horn 20, but the vibration amplitude of the working end 21 of the horn 20 has an appropriate value for ultrasonic welding. If it is possible, the horn 20 may be directly connected to the ultrasonic transducer 18 without the booster 19. The ultrasonic oscillator 18 may be either an electrostrictive oscillator or a magnetostrictive oscillator, but an electrostrictive oscillator having excellent conversion efficiency of electrical energy into mechanical energy is desirable. The ultrasonic resonance frequency is 10 to 100 kHz, and preferably 15 to 40 kHz, so that there is little abnormal noise and a high amplitude may be obtained. The material of the booster 19 is preferably aluminum alloy, steel or titanium alloy, and more preferably titanium alloy having the highest toughness and excellent durability against high speed vibration under ultrasonic frequency. In the case of a titanium alloy, the amplitude expansion rate of the booster 19 is 1.2 to 4 times, and preferably 1.5 to 2.5 times, so that the generation of cracks due to stress concentration can be suppressed. The material of the horn 20 is preferably a high-strength aluminum alloy such as duralumin, a titanium alloy, or the like because of high toughness. In terms of shape, in principle, the amplitude is enlarged by the booster 19 and the amplitude enlargement ratio of the horn 20 is set to about 1 to 2 so that the horn 20 is not excessively enlarged. 20 is desirable because it is not difficult. The working end 21 of the horn 20 has an amplitude of 10 to 120.
μm, preferably 30 to 90 μm. When an electrostrictive oscillator is used, the ultrasonic output is 0.5 to 4 KW, preferably 1.5 to 3 KW for this purpose. The ultrasonic oscillator 18 of the ultrasonic actuator 16 is connected to the ultrasonic oscillator 23 by a high frequency cable 22. The anvil 17 is composed of a receiving portion 24 having the same shape as the working end 21 of the horn 20 and an anvil body 25, and the receiving portion 2
4 and the anvil body 25 are integrally processed or the receiving portion 2
4 may be connected to the anvil body 25 by fastening means such as bolts. The material of the anvil 17 is preferably made of aluminum, aluminum alloy, metal such as iron or stainless steel, or a combination thereof.

【００１０】次に、本発明による包装袋７、注出栓１、
超音波アクチェーター１６、アンビル１７及び超音波発
振器２３の構成、作用機序について図１、図１０及び図
１１を用いて説明する。包装袋７への注出栓１の挿入は
図示していないが、包装袋７の上部両腹部を吸引パッド
等の吸着手段にて吸引把持し外側方向に開くことによっ
て開口させ、開口部８を形成固定させる。この状態で、
注出栓１のキャップ３近傍又は、キャップ３を装着して
いない場合は注出栓本体２のネジ部近傍を、ロボット等
の把持挿入手段にて把持し、包装袋７の開口部８内の適
正位置迄挿入、位置決めを行うと共に、開口部８の両外
側或いは片側から、図示していないが適温に温度制御さ
れた熱棒等で注出栓本体２の舟型フランジ側へ軽く圧接
することにより包装袋７の開口部８のシール層と舟型フ
ランジ部とをスポット溶着するという仮シール工程を経
るのが望ましい。この仮シールの操作は、前述の熱棒等
のヒートシール方式の他、超音波或いは、シール層の材
質によっては高周波等適宜の方式を用いることができ
る。Next, the packaging bag 7, the spout 1 according to the present invention,
The configurations and operating mechanisms of the ultrasonic actuator 16, anvil 17 and ultrasonic oscillator 23 will be described with reference to FIGS. 1, 10 and 11. Although the insertion of the pouring plug 1 into the packaging bag 7 is not shown, the upper abdomen of the packaging bag 7 is opened by opening it by sucking and grasping the upper abdomen with suction means such as a suction pad and opening it outward. Form and fix. In this state,
The vicinity of the cap 3 of the spout 1 or the screw part of the spout main body 2 when the cap 3 is not attached is grasped by a grasping and inserting means such as a robot, and the inside of the opening 8 of the packaging bag 7 is held. Insert and position to an appropriate position, and lightly press from both outside or one side of the opening 8 to the boat-shaped flange side of the spout main body 2 with a heating rod (not shown) whose temperature is controlled to an appropriate temperature. Therefore, it is desirable to go through a temporary sealing step of spot welding the seal layer of the opening 8 of the packaging bag 7 and the boat-shaped flange portion. For this temporary sealing operation, in addition to the heat-sealing method using the above-mentioned hot rod or the like, an appropriate method such as ultrasonic waves or high-frequency waves may be used depending on the material of the seal layer.

【００１１】仮シールを経た包装袋７と注出栓１を次の
工程である図１に示す本発明の超音波溶着の工程に移
す。超音波アクチェーター１６とアンビル１７の配置
は、注出栓１の注出栓シール部４、具体的には舟型フラ
ンジ５の両サイドにあるフランジ端部２６，２７を結ぶ
線上に直交する軸線上に設置する。超音波アクチェータ
ー１６とアンビル１７とは、図１の両矢印で示す通り、
フランジ端部２６，２７を結ぶ線上に直交する軸線上を
移動できる構造、例えば、エアーシリンダー、油圧シリ
ンダー或いは機械的カムの１つまたはこれらの組合せ等
の往復動駆動手段に適宜の方法にて固定設置する。超音
波アクチェーター１６とアンビル１７は開いた状態で待
機し、注出栓１の仮シール付き包装袋７が供給され、超
音波アクチェーター１６及びアンビル１７の軸線上であ
る定位置に停止した時点で、超音波アクチェーター１６
及びアンビル１７が相互に同期しながら閉まる方向、即
ち図１上では、超音波アクチェーター１６が左へ、アン
ビル１７が右へ移動し、包装袋７の両面にあるシール対
象部２８に各々同時に圧接させる。超音波アクチェータ
ー１６の超音波発振の開始タイミングは、超音波アクチ
ェーター１６が閉まる方向に移動し始める時点、移動中
或いはシール対象部２８に圧接した時点のいずれでもよ
いが、圧接後の発振立上げは、超音波振動子１８に負荷
が掛かり過ぎる恐れがあり、超音波発振器２３の許容最
大出力を大きくとる必要性がある。また、包装袋７に充
填物を充填後注出栓１を超音波シールする場合は、包装
袋７のシール対象部２８内に付着している内容物、即ち
夾雑物を超音波振動で弾き飛ばした上で圧接した方が効
率が良いので、ホーン２０をシール対象部２８に圧接す
る前に超音波アクチェーター１６を発振させる方式が望
ましい。超音波振動しているホーン２０の作業端２１を
シール対象部２８に圧接することにより、注出栓本体２
の舟型フランジ５と包装袋内面のシール層とが、超音波
周波数下における機械的高速振動し、摩擦熱及び分子発
熱し溶着する。この機械的高速振動は、注出栓本体２に
も伝播され、アンビル１７の受け部２４に圧接されてい
る側の舟型フランジ５と包装袋内面のシール層も同時に
機械的高速振動し、摩擦熱及び分子発熱により溶着す
る。この超音波溶着は、超音波発振時間であるウエルド
タイムと、圧接した状態で超音波発振を止め溶着部を冷
却固化させるホールドタイムの和によって超音溶着サイ
クルが終了する。これらの時間設定は超音波発振器２３
内の限時タイマー２９で行い、通常ホールドタイムは、
ウエルドタイムの約半分の時間設定で行うのが望まし
い。ホールドタイム終了時点で、超音波アクチェーター
１６及びアンビル１７を同時に開き、注出栓付包装袋を
落下等適宜の方法で取り出し溶着作業は終了する。The packaging bag 7 and the pouring plug 1 that have undergone the temporary sealing are transferred to the next step of the ultrasonic welding of the present invention shown in FIG. The ultrasonic actuator 16 and the anvil 17 are arranged on an axis line orthogonal to the line connecting the spout plug seal portion 4 of the spout plug 1, specifically, the flange ends 26 and 27 on both sides of the boat-shaped flange 5. To install. As shown by the double-headed arrow in FIG. 1, the ultrasonic actuator 16 and the anvil 17 are
A structure capable of moving on an axis orthogonal to the line connecting the flange ends 26 and 27, for example, fixed to a reciprocating drive means such as an air cylinder, a hydraulic cylinder, one of mechanical cams, or a combination thereof by an appropriate method. Install. The ultrasonic actuator 16 and the anvil 17 stand by in an open state, the packaging bag 7 with the temporary seal of the spout 1 is supplied, and when stopped at a fixed position on the axis of the ultrasonic actuator 16 and the anvil 17, Ultrasonic actuator 16
In the direction in which the anvil 17 and the anvil 17 are closed in synchronization with each other, that is, in FIG. 1, the ultrasonic actuator 16 is moved to the left and the anvil 17 is moved to the right, and they are pressed against the sealing target portions 28 on both sides of the packaging bag 7 at the same time. . The start timing of the ultrasonic oscillation of the ultrasonic actuator 16 may be either when the ultrasonic actuator 16 starts to move in the closing direction, during movement, or when the ultrasonic contact 16 is pressed against the sealing target portion 28. Since the ultrasonic transducer 18 may be overloaded, it is necessary to increase the maximum allowable output of the ultrasonic oscillator 23. Further, when the spout 1 is ultrasonically sealed after the packing bag 7 is filled with the filling material, the contents attached to the sealing target portion 28 of the packaging bag 7, that is, the foreign matters are blown off by ultrasonic vibration. Since it is more efficient to press the horn 20 against the sealing target portion 28, it is preferable to oscillate the ultrasonic actuator 16 before the horn 20 is pressed against the sealing target portion 28. By pressing the working end 21 of the horn 20 that is ultrasonically vibrating against the sealing target portion 28, the pouring plug main body 2
The boat-shaped flange 5 and the sealing layer on the inner surface of the packaging bag vibrate mechanically at high speed under ultrasonic frequency, frictional heat and molecular heat are generated, and welding occurs. This mechanical high-speed vibration is also propagated to the spout main body 2, and the boat-shaped flange 5 on the side of the anvil 17 that is pressed against the receiving portion 24 and the sealing layer on the inner surface of the packaging bag also vibrate mechanically at high speed, causing friction. Weld due to heat and molecular heat. In this ultrasonic welding, the ultrasonic welding cycle is completed by the sum of the weld time, which is the ultrasonic oscillation time, and the hold time for stopping the ultrasonic oscillation in the pressed state and cooling and solidifying the welded portion. These time settings are based on the ultrasonic oscillator 23.
It is done by the time limit timer 29 inside, and the normal hold time is
It is desirable to set the time about half of the weld time. At the end of the hold time, the ultrasonic actuator 16 and the anvil 17 are simultaneously opened, and the packaging bag with the pouring plug is taken out by an appropriate method such as dropping, and the welding work is completed.

【００１２】次に、本発明による超音波アクチェーター
２台及び超音波発振器２台を用いる方式の実施例につい
て、図２に基づき説明する。超音波アクチェーター１
６、超音波発振器２３及び注出栓１を仮シールした包装
袋７の基本構成と配置等は、図１で前述したものと同じ
である。超音波アクチェーター３０は、超音波振動子３
１、ブースター３２及びホーン３３からなり、その構
造、材質、機能は、超音波アクチェーター１６と基本的
には同じである。超音波アクチェーター３０は、高周波
ケーブル３４にて超音波発振器３５に接続する。超音波
アクチェーター３０は、図１で説明したアンビル１７の
配置と同じ配置、即ち、超音波アクチェーター１６の軸
線上で注出栓１を中心として相対する位置に設置する。
超音波アクチェーター１６と３０とは、図２の両矢印で
示す通り、図１０のフランジ端部２６，２７を結ぶ線上
に直交する軸線上を移動できる構造、例えば、エアシリ
ンダー、油圧シリンダー或いは、機械的カムの１つまた
はこれらの組合せ等の往復駆動手段に適宜の方法にて固
定設置する。超音波アクチェーター１６と超音波アクチ
ェーター３０は開いた状態で待機し、注出栓１の仮シー
ル付き包装袋７が供給され、超音波アクチェーター１６
及び超音波アクチェーター３０の軸線上である定位置に
停止した時点で、超音波アクチェーター１６及び超音波
アクチェーター３０が相互に同期しながら閉まる方向、
即ち図２上では、超音波アクチェーター１６が左へ、超
音波アクチェーター３０が右へ移動し、包装袋７のシー
ル対象部２８に各々同時に圧接させる。超音波アクチェ
ーター１６及び超音波アクチェーター３０の超音波発振
の開始タイミングは、超音波アクチェーター１６及び超
音波アクチェーター３０が閉まる方向に移動し始める時
点、移動中或いはシール対象部２８に圧接した時点のい
ずれでもよいが、圧接後の発振立上げは、超音波振動子
１８及び超音波振動子３１に負荷が掛かり過ぎる恐れが
あり、超音波発振器２３及び超音波発振器３５の許容最
大出力を大きくとる必要性がある。また、包装袋７に充
填物を充填後注出栓１を超音波シールする場合は、包装
袋７のシール対象部２８内に付着している内容物、即ち
夾雑物を超音波振動で弾き飛ばした上で圧接した方が効
率が良いので、ホーン２０及びホーン３３をシール対象
部２８に圧接する前に超音波アクチェーター１６及び超
音波アクチェーター３０を発振させる方式が望ましい。
この超音波発振時間であるウエルドタイムと、冷却時間
であるホールドタイムの時間設定は、超音波発振器２３
内の限時タイマー２９及び超音波発振器３５内の限時タ
イマー３６にて各々行なう。ホールドタイム終了時点
で、超音波アクチェーター１６及び超音波アクチェータ
ー３０を同時に開き、注出栓付包装袋を落下等適宜の方
法で取り出し溶着作業は終了する。Next, an embodiment of a system using two ultrasonic actuators and two ultrasonic oscillators according to the present invention will be described with reference to FIG. Ultrasonic actuator 1
6, the ultrasonic oscillator 23 and the packaging bag 7 in which the spout 1 is temporarily sealed have the same basic configuration and arrangement as those described above with reference to FIG. The ultrasonic actuator 30 is an ultrasonic vibrator 3
1, a booster 32 and a horn 33, and the structure, material, and function thereof are basically the same as those of the ultrasonic actuator 16. The ultrasonic actuator 30 is connected to the ultrasonic oscillator 35 by a high frequency cable 34. The ultrasonic actuator 30 is installed in the same arrangement as the arrangement of the anvil 17 described with reference to FIG. 1, that is, in a position facing the pouring plug 1 on the axis of the ultrasonic actuator 16.
The ultrasonic actuators 16 and 30 are, as shown by the double-headed arrow in FIG. 2, a structure capable of moving on an axis orthogonal to the line connecting the flange ends 26 and 27 in FIG. 10, such as an air cylinder, a hydraulic cylinder, or a machine. It is fixedly installed in a reciprocating drive means such as one of the objective cams or a combination thereof by an appropriate method. The ultrasonic actuator 16 and the ultrasonic actuator 30 stand by in an open state, the packaging bag 7 with the temporary seal of the spout 1 is supplied, and the ultrasonic actuator 16
And a direction in which the ultrasonic actuator 16 and the ultrasonic actuator 30 are closed in synchronization with each other when the ultrasonic actuator 30 stops at a fixed position on the axis of the ultrasonic actuator 30.
That is, in FIG. 2, the ultrasonic actuator 16 moves to the left and the ultrasonic actuator 30 moves to the right, and they are pressed against the sealing target portions 28 of the packaging bag 7 at the same time. The start timing of the ultrasonic oscillations of the ultrasonic actuator 16 and the ultrasonic actuator 30 may be any of the time when the ultrasonic actuator 16 and the ultrasonic actuator 30 start moving in the closing direction, the time when the ultrasonic actuator 16 and the ultrasonic actuator 30 start moving, or the time when the sealing target portion 28 is pressed. It is good, however, that the start-up of oscillation after the pressure contact may cause an excessive load on the ultrasonic oscillator 18 and the ultrasonic oscillator 31, and it is necessary to increase the permissible maximum outputs of the ultrasonic oscillator 23 and the ultrasonic oscillator 35. is there. Further, when the spout 1 is ultrasonically sealed after the packing bag 7 is filled with the filling material, the contents attached to the sealing target portion 28 of the packaging bag 7, that is, the foreign matters are blown off by ultrasonic vibration. Since it is more efficient to press the horn 20 and the horn 33 against each other, it is preferable to oscillate the ultrasonic actuator 16 and the ultrasonic actuator 30 before the horn 20 and the horn 33 are pressed against the sealing target portion 28.
The welding time, which is the ultrasonic oscillation time, and the hold time, which is the cooling time, are set by the ultrasonic oscillator 23.
The time limit timer 29 in the inside and the time limit timer 36 in the ultrasonic oscillator 35 respectively perform. At the end of the hold time, the ultrasonic actuator 16 and the ultrasonic actuator 30 are opened at the same time, the packaging bag with the pouring plug is taken out by an appropriate method such as dropping, and the welding work is completed.

【００１３】本発明によるこの方式の更に重要なる点
は、超音波アクチェーター１６と超音波発振器２３から
なる超音波発振系（Ｉ）と超音波アクチェーター３０と
超音波発振器３５からなる超音波発振系（II）との共振
周波数を異なった値とすることにある。超音波発振系
（Ｉ）の共振周波数と超音波発振系（II）の共振周波数
とが同じ値である場合には、シール対象部２８に圧接し
ているホーン２０の作業端２１が、図２中、左へ伸びる
方向、即ちシール対象部２８を押さえる方向に作用した
際、同じくシール対象部２８に圧接しているホーン３３
の作業端３７が、図２中、左へ縮む方向即ちシール対象
部２８への圧接力を緩める方向に作用するという現象、
また逆にホーン３３の作業端３７が図２中、右へ伸びる
方向即ちシール対象部２８を押さえる方向に作用した
際、同じくシール対象部２８に圧接しているホーン２０
の作業端２１が、図２中、右へ縮む方向即ちシール対象
部２８への圧接力を緩める方向に作用するという現象と
が繰り返され、シール対象部２８が作業端２１及び３７
との左右同方向移動に追随して移動し、超音波振動によ
るシールの前提条件である摩擦と分子発熱とが発生せ
ず、溶着が全くできないという現象が発生する。この現
象を回避するには、超音波発振系（Ｉ）の共振周波数と
超音波発振系（II）の共振周波数とを異なった値にする
ことであり、この共振周波数の差は大きい程効果は大で
あり、例えば、超音波発振系（Ｉ）の共振周波数が２０
ｋＨｚの場合には、超音波発振系（II）の共振周波数を
１ｋＨｚ以上、望ましくは５ｋＨｚ以上の差をつけるの
がよい。The more important point of this system according to the present invention is that an ultrasonic oscillation system (I) consisting of the ultrasonic actuator 16 and the ultrasonic oscillator 23, and an ultrasonic oscillation system consisting of the ultrasonic actuator 30 and the ultrasonic oscillator 35 ( II) to set the resonance frequency to a different value. When the resonance frequency of the ultrasonic oscillating system (I) and the resonance frequency of the ultrasonic oscillating system (II) have the same value, the working end 21 of the horn 20 that is in pressure contact with the sealing target portion 28 is as shown in FIG. The horn 33, which is also in pressure contact with the sealing target portion 28 when it acts in the direction extending to the inside and left, that is, in the direction of pressing the sealing target portion 28.
2, the working end 37 of FIG. 2 acts in the direction of contracting to the left, that is, in the direction of loosening the pressure contact force to the sealing target portion 28,
On the contrary, when the working end 37 of the horn 33 acts in the direction extending to the right in FIG. 2, that is, in the direction of pressing the sealing target portion 28, the horn 20 is also pressed against the sealing target portion 28.
The working end 21 of FIG. 2 acts in the direction of contracting to the right in FIG. 2, that is, in the direction of loosening the pressure contact force to the sealing target portion 28, and the sealing target portion 28 moves to the working ends 21 and 37.
Since the friction and the molecular heat generation, which are prerequisites for sealing due to ultrasonic vibration, do not occur, the phenomenon occurs that welding cannot be performed at all. To avoid this phenomenon, the resonance frequency of the ultrasonic oscillation system (I) and the resonance frequency of the ultrasonic oscillation system (II) are set to different values. The larger the difference between the resonance frequencies, the more effective the effect is. The resonance frequency of the ultrasonic oscillation system (I) is 20
In the case of kHz, the resonance frequency of the ultrasonic oscillation system (II) should be different by 1 kHz or more, preferably 5 kHz or more.

【００１４】次に、本発明による超音波アクチェーター
２台及び切替型超音波発振器１台を用いる方式の実施例
について、図３に基づき説明する。超音波アクチェータ
ー１６，３８及び注出栓１を仮シールした包装袋７の配
置は、図２で前述したものと同じである。超音波アクチ
ェーター３８は、超音波アクチェーター１６と材質、構
成及び共振周波数は同じものを使用する。超音波アクチ
ェーター１６の超音波振動子１８及び超音波アクチェー
ター３８の超音波振動子３９を各々、高周波ケーブル２
２、４０にて、超音波発振機能が１台であり、振動子切
替え機能を有する本発明による切替型超音波発振器４１
に接続する。切替型超音波発振器４１は、図２に示す前
述の超音波アクチェーター２台に対し、超音波発振器が
２台必要であったものを、本実施例では１台の超音波発
振器で済ませることができる機能を有するものであり、
その振動子切替え機能とは、１台の超音波発振器と２ケ
の超音波振動子１８，３９に接続されている２本の高周
波ケーブル２２，４４との間にリレー等の接点切替え手
段を置き、この接点切替手段の作動方式は、ウエルドタ
イムとホールドタイムの組合せを、２台の超音波アクチ
ェーター１６，３８の超音波振動子１８，３９を順次切
替える方式であり、本実施例では、切替型超音波発振器
４１に内蔵した限時タイマー４２，４３にて行なうが、
限時タイマー４２，４３は、切替型超音波発振器４１と
は別ユニットとしケーブル等で接続してもよい。Next, an embodiment of a system using two ultrasonic actuators and one switching ultrasonic oscillator according to the present invention will be described with reference to FIG. The arrangement of the packaging bag 7 in which the ultrasonic actuators 16 and 38 and the spout 1 are temporarily sealed is the same as that described above with reference to FIG. The ultrasonic actuator 38 uses the same material, configuration, and resonance frequency as the ultrasonic actuator 16. The ultrasonic transducer 18 of the ultrasonic actuator 16 and the ultrasonic transducer 39 of the ultrasonic actuator 38 are respectively connected to the high frequency cable 2
2 and 40, the switching ultrasonic oscillator 41 according to the present invention has a single ultrasonic oscillation function and a vibrator switching function.
Connect to. The switching type ultrasonic oscillator 41, which requires two ultrasonic oscillators in contrast to the above-described two ultrasonic actuators shown in FIG. 2, can be replaced with one ultrasonic oscillator in this embodiment. Has a function,
The vibrator switching function means that a contact switching means such as a relay is provided between one ultrasonic oscillator and two high frequency cables 22, 44 connected to the two ultrasonic vibrators 18, 39. The operation method of the contact switching means is a method of sequentially switching the ultrasonic transducers 18, 39 of the two ultrasonic actuators 16, 38 for the combination of the weld time and the hold time. In the present embodiment, the switching type is used. Although it is performed by the time limit timers 42 and 43 built in the ultrasonic oscillator 41,
The time limit timers 42 and 43 may be units separate from the switching ultrasonic oscillator 41 and may be connected by a cable or the like.

【００１５】２台の超音波アクチェーター１６，３８及
び切替型超音波発振器４１の具体的な作動方式につい
て、図３に従い詳しく説明する。超音波アクチェーター
１６と超音波アクチェーター３８は開いた状態で待機
し、注出栓１の仮シール付き包装袋７が供給され、超音
波アクチェーター１６及び超音波アクチェーター３８の
軸線上である定位置に停止した時点で、超音波アクチェ
ーター１６及び３８が相互に同期しながら閉まる方向、
即ち図３上では、超音波アクチェーター１６が左へ、超
音波アクチェーター３８が右へ移動し、包装袋７のシー
ル対象部２８に各々同時に圧接させる。超音波アクチェ
ーター１６側のみを先ず超音波発振させ、シールする。
そのウエルドタイムとホールドタイムは限時タイマー４
２にて制御する。超音波アクチェーター１６のウエルド
タイム終了時点もしくはホールドタイム終了時点のいず
れかのタイミングで、接点切替え手段にて超音波アクチ
ェーター３８側に超音波発振器を接続し、超音波アクチ
ェーター３８側のみを超音波発振させシールする。その
ウエルドタイムとホールドタイムは限時タイマー４３に
て制御する。限時タイマー４３のホールドタイム終了時
点で超音波アクチェーター１６及び超音波アクチェータ
ー３８を同時に開き、注出栓付包装袋を落下等適宜の方
法で取り出し、溶着作業は終了する。これらの操作にお
いて、超音波アクチェーター１６の超音波発振のタイミ
ングは、超音波アクチェーター１６が閉まる方向に移動
し始める時点、移動中或いはシール対象部２８に圧接し
た時点のいずれでもよいが、超音波発振の立上げの容易
さ、内容物がある場合の夾雑物の弾き飛ばし効果等から
シール対象部２８に圧接する前に超音波アクチェーター
１６を発振開始されるのが望ましく、また、超音波アク
チェーター３８の発振開始は、シール対象部２８に圧接
した状態で行なうことが困難な場合には、超音波アクチ
ェーター３８を一旦僅かに開く方向に後退させ再びシー
ル対象部２８に圧接させる前に超音波アクチェーター３
８を発振開始させることにより、切替型超音波発振器４
１の発振出力を低く押さえることができ望ましい。ま
た、超音波アクチェーター１６側から超音波アクチェー
ター３８側への切替えのタイミングは、超音波アクチェ
ーター１６のウエルドタイム終了時点で行なうのが、時
間短縮できて好ましい。A concrete operation method of the two ultrasonic actuators 16 and 38 and the switching type ultrasonic oscillator 41 will be described in detail with reference to FIG. The ultrasonic actuator 16 and the ultrasonic actuator 38 stand by in an open state, the packaging bag 7 with the temporary seal of the spout 1 is supplied, and the ultrasonic actuator 16 and the ultrasonic actuator 38 are stopped at a fixed position on the axis. At that time, the ultrasonic actuators 16 and 38 are closed in synchronization with each other,
That is, in FIG. 3, the ultrasonic actuator 16 is moved to the left and the ultrasonic actuator 38 is moved to the right, and they are pressed against the sealing target portions 28 of the packaging bag 7 at the same time. First, only the ultrasonic actuator 16 side is ultrasonically oscillated and sealed.
The weld time and hold time are limited timer 4
Controlled by 2. At either the end time of the weld time or the end time of the hold time of the ultrasonic actuator 16, the ultrasonic wave oscillator is connected to the ultrasonic actuator 38 side by the contact switching means, and only the ultrasonic actuator 38 side is ultrasonically oscillated. Seal it. The weld time and hold time are controlled by the time limit timer 43. At the end of the hold time of the time limit timer 43, the ultrasonic actuator 16 and the ultrasonic actuator 38 are opened at the same time, the packaging bag with the pouring plug is taken out by an appropriate method such as dropping, and the welding work is completed. In these operations, the timing of ultrasonic oscillation of the ultrasonic actuator 16 may be either the time when the ultrasonic actuator 16 starts moving in the closing direction, the time when the ultrasonic actuator 16 is moving, or the time when the ultrasonic actuator 16 is pressed against the sealing target portion 28. It is desirable that the ultrasonic actuator 16 be started to oscillate before it is pressed against the sealing target portion 28 because of the ease of starting up, the effect of splashing contaminants when there is contents, and the like. If it is difficult to start the oscillation in a state where the ultrasonic actuator 38 is in pressure contact with the sealing target portion 28, the ultrasonic actuator 3 is temporarily retracted in a direction to open slightly and before the ultrasonic actuator 3 is pressed against the sealing target portion 28 again.
8 is started to oscillate so that the switching ultrasonic oscillator 4
It is desirable because the oscillation output of 1 can be suppressed low. Further, the timing of switching from the ultrasonic actuator 16 side to the ultrasonic actuator 38 side is preferably performed at the time when the weld time of the ultrasonic actuator 16 ends, because this can shorten the time.

【００１６】上述の本発明による図１，図２及び図３の
実施例では、ウエルドタイム即ち超音波発振する時間の
制御は、限時タイマーによる時間制御方式を用いて説明
したが、本発明による他の制御方式であるホーンの移動
量制御方式、及び超音波振動子に付与された電力量を計
測制御するエネルギー制御方式について図１を代表させ
て実施例を以下説明する。まず、本発明による移動量制
御方式について、図１に基づき説明する。超音波アクチ
ェーター１６が開の状態即ち図上で右端位置から超音波
シールを完了させるまでの移動距離、超音波アクチェー
ター１６が閉る方向に移動を始めシール対象部２８に圧
接される位置迄の間で超音波発振開始用のトリガーを掛
けられるリミットスイッチ等のトリガー手段を作動させ
た位置から超音波シールを完了させるまでの移動距離、
または、超音波アクチェーター１６に接続したロードセ
ル等の圧力検出手段にて、超音波アクチェーター１６が
シール対象部２８に圧接した際の圧力を測定し、予め設
定したトリガー圧接力に到達した位置から超音波シール
を完了させるまでの移動距離の３種の移動量のいずれか
によって超音波発振時間を制御する方式である。これら
３種の移動距離の測定は、ＬＥＤ変位センサー、レーザ
変位計、超音波変位センサー、リニア近接センサー等の
変位センサー、レーザマイクロメータ、光電センサー、
ビデオメジャー、リニアーエンコーダー等の測長センサ
ー等の移動量測定手段によればよく、これらの内、構造
が簡単で且つ精度に優れるリニアーエンコーダーによる
方法が最も望ましい。また、上述の３種の移動量制御方
式の内、シール安定性を向上させる上で最も制御精度が
でるのは、第３番目のトリガー圧設定を使用する方式で
あり、この方式について更に詳しく説明する。トリガー
圧接力が予め設定した圧接力に到達した移動位置でのト
リガー信号で超音波発振器２３を発振させ、超音波アク
チェーター１６は超音波振動しながら包装袋７及び注出
栓１のシール対象部２８を超音波シールしながら更に圧
接方向に移動する。上述のトリガーが働らいた位置から
測長した移動距離が、予め設定した移動距離に到達した
時点で超音波発振、即ちウエルドタイムの工程を終了さ
せると同時に冷却工程であるホールドタイムに移行す
る。このホールドタイムの時間設定は限時タイマーで従
来通り設定すればよい。In the above-described embodiments of FIGS. 1, 2 and 3 according to the present invention, the control of the weld time, that is, the time of ultrasonic oscillation is explained by using the time control system by the time limit timer. The horn movement amount control method, which is the control method of 1), and the energy control method of measuring and controlling the amount of electric power applied to the ultrasonic transducer, will be described below with reference to FIG. First, a movement amount control method according to the present invention will be described with reference to FIG. The ultrasonic actuator 16 is in the open state, that is, the moving distance from the right end position in the figure until the ultrasonic sealing is completed, and the position where the ultrasonic actuator 16 starts to move in the closing direction and is pressed against the sealing target portion 28. With the movement distance from the position where the trigger means such as the limit switch that can trigger the ultrasonic oscillation start is activated to the completion of ultrasonic sealing,
Alternatively, a pressure detecting means such as a load cell connected to the ultrasonic actuator 16 measures the pressure when the ultrasonic actuator 16 is pressed against the sealing target portion 28, and the ultrasonic wave is applied from a position where the preset trigger pressure contact force is reached. This is a method in which the ultrasonic oscillation time is controlled by any one of the three movement amounts of the movement distance until the sealing is completed. These three types of movement distances are measured by LED displacement sensor, laser displacement meter, ultrasonic displacement sensor, displacement sensor such as linear proximity sensor, laser micrometer, photoelectric sensor,
It suffices to use a moving amount measuring means such as a length measuring sensor such as a video measure or a linear encoder. Among these, a method using a linear encoder having a simple structure and excellent accuracy is most preferable. Further, among the above three types of movement amount control methods, the method that uses the third trigger pressure setting has the highest control accuracy in improving the seal stability. This method will be described in more detail. To do. The ultrasonic oscillator 23 is oscillated by the trigger signal at the moving position where the trigger pressure contact force reaches the preset pressure contact force, and the ultrasonic actuator 16 vibrates ultrasonically and the sealing target portion 28 of the packaging bag 7 and the spout 1 While ultrasonically sealing, move further in the pressure contact direction. When the moving distance measured from the position where the above trigger is actuated reaches a preset moving distance, the ultrasonic oscillation, that is, the weld time step is ended, and at the same time, the cooling step is started. The hold time may be set by a time limit timer as in the conventional case.

【００１７】次に、本発明によるエネルギー制御方式の
実施例について、図１に基づき説明する。本発明にいう
エネルギーとは、超音波発振器２３が超音波アクチェー
ター１６を超音波振動させ、シール対象部２８にて包装
袋７と注出栓１とを超音波シールするに要する超音波発
振器２３の電力をウエルドタイムの時間幅で積分した、
所謂ゆる電力量を意味する。超音波アクチェーター１６
が超音波発振を開始する位置は、時間制御方式と同様に
光電センサー、近接センサー、リミットスイッチ等の位
置検出センサーにて検出し、この検出信号をトリガー信
号として超音波発振器２３を発振させ超音波シールす
る。トリガー信号にての発振開始から、超音波シールし
ている間の超音波発振器２３の電力量が予め設定した電
力量に到達した時点で超音波発振、即ちウエルドタイム
の工程を終了させると同時に冷却工程であるホールドタ
イムに移行する。このホールドタイムの時間設定は限時
タイマーで従来通り設定すればよい。図１を用いて上述
の通り説明した移動量制御、または、エネルギー制御を
図２の実施例に適用する場合は、超音波アクチェーター
１６と超音波発振器２３からなる超音波発振系（Ｉ）と
超音波アクチェーター３０と超音波発振器３５からなる
超音波発振系（ＩＩ）に各々設置すればよい。また、図
３の実施例に適用する場合は、切替型超音波発振器４１
にて超音波アクチェーター１６及び３８を逐次発振させ
るので、超音波アクチェーター毎に移動量制御あるい
は、エネルギー制御を行なえばよく、特に超音波アクチ
ェーター３８を一旦後退させる前述の方式に従えば、更
に効果的に機能を発揮できる。また、以上述べた超音波
発振制御方式は、時間制御、移動量制御或いはエネルギ
ー制御を適宜組み合わせて制御してもよい。Next, an embodiment of the energy control system according to the present invention will be described with reference to FIG. The energy referred to in the present invention means that the ultrasonic oscillator 23 ultrasonically vibrates the ultrasonic actuator 16 to ultrasonically seal the packaging bag 7 and the pouring plug 1 at the sealing target portion 28. Electric power was integrated by the time width of weld time,
This means so-called loose electric energy. Ultrasonic actuator 16
The position at which the ultrasonic oscillation starts is detected by a position detection sensor such as a photoelectric sensor, a proximity sensor, and a limit switch as in the time control method, and the ultrasonic oscillator 23 is oscillated by using the detection signal as a trigger signal. Seal it. From the start of oscillation by the trigger signal, when the amount of power of the ultrasonic oscillator 23 reaches a preset amount of power during ultrasonic sealing, ultrasonic oscillation, that is, the process of weld time is finished and cooling is performed at the same time. The process shifts to the hold time. The hold time may be set by a time limit timer as in the conventional case. When the movement amount control or energy control described above with reference to FIG. 1 is applied to the embodiment of FIG. 2, the ultrasonic oscillator (I) including the ultrasonic actuator 16 and the ultrasonic oscillator 23 and the ultrasonic oscillator (I) are used. It may be installed in each of the ultrasonic oscillation systems (II) including the sonic actuator 30 and the ultrasonic oscillator 35. Further, when applied to the embodiment of FIG. 3, the switching type ultrasonic oscillator 41
Since the ultrasonic actuators 16 and 38 are sequentially oscillated by, the movement amount control or the energy control may be performed for each ultrasonic actuator, and in particular, according to the above-mentioned method in which the ultrasonic actuator 38 is once retracted, it is more effective. Can exert its function. The ultrasonic oscillation control method described above may be controlled by appropriately combining time control, movement amount control, or energy control.

【００１８】次に本発明による超音波方式とヒートシー
ル方式の組合わせについて説明する。前述の図１、図２
及び図３にて説明した超音波方式にて注出栓１を包装袋
７に超音波シールした後、図１２に示した方式によるヒ
ートシールを施すことにより、更に確実な溶着を可能な
らしめる。すなわち、超音波シールにより夾雑物を弾き
飛ばしながら溶着した後工程で、更にヒートシールをす
るという組合わせにより、シール安定性を著しく向上さ
せることができる。このヒートシールは、１回又は複数
回繰り返してもよく、ヒートシール後冷却工程である冷
却シールをしてもよい。Next, the combination of the ultrasonic method and the heat sealing method according to the present invention will be described. 1 and 2 described above.
Further, after ultrasonically sealing the pouring plug 1 to the packaging bag 7 by the ultrasonic method described with reference to FIG. 3, heat sealing according to the method shown in FIG. 12 is performed to enable more reliable welding. That is, the sealing stability can be remarkably improved by a combination of heat-sealing in a step after welding while depositing foreign matters by flipping them by ultrasonic sealing. This heat sealing may be repeated once or a plurality of times, and cooling sealing which is a cooling step after heat sealing may be performed.

【００１９】以上詳述した包装袋と注出栓とを超音波シ
ールする方式に関し、注出栓の形状、ホーン及びアンビ
ルの形状は、共に本発明をより効果的に実施する上で重
要な技術構成要件であり、本発明による注出栓、ホーン
及びアンブルの形状について以下詳述する。まず、本発
明による注出栓の形状の実施例について、図４，図５，
図６及び図７に従い説明する。図４は、本発明による注
出栓本体の一部裁断側面図、図５は、図４の注出栓本体
の底面図、図６は図４に示すＣ−Ｃ矢視図、図７は図４
の溶着リブ部詳細図を各々示す。図４において、注出栓
本体２は、その上部にネジ部４４を有し、図１０に示す
キャップ３とネジ嵌合にて閉栓、開栓が行える。注出栓
本体２内には内容物の注入、注出用の注入出孔４５を設
ける。注出栓本体２の下部は注出栓シール部４を構成す
る舟型フランジ５を有し、舟型フランジ５上には溶着リ
ブ６を１条ないし複数条設けるが、図４の実施例は３条
の場合を示す。図１１（Ａ）に示す包装袋７の開口部８
を図４に示す舟型フランジ５の注出栓シール部４の上端
部４６近傍まで挿入し、前述の超音波シール方式にて超
音波シールする。図５及び図４において、舟型フランジ
５の注出栓シール部４は、アール形状、楕円形状等の山
型形状がよいが、注出栓本体２を射出成形等により成形
する際の金型加工の容易さからアール形状が簡単であり
望ましく実施例はアール形状の場合を示す。舟型フラン
ジ５の両端部であるフランジ端部２６及び２７は、薄肉
化し、図１１（Ｂ）に示すシール耳部１２との溶着に際
し段差ができないようにするのがシールを確実に行え
る。舟型フランジ５の溶着リブ６は、溶出栓シール部４
のベースに相当する溶着ベース４７から適正な高さでそ
の断面が凸状に突出した形状であると共に、溶着ベース
のアール形状に沿った形とする。溶出ベース４７は図５
での半径寸法線Ｒ１部が山型形状部４８であり、フラン
ジ端部２６，２７は、半径寸法線ｒ１で示す谷型形状部
４９となし、半径指示線Ｒ１とｒ１とは、接線接続とす
る。Regarding the method of ultrasonically sealing the packaging bag and the spout described above in detail, the shape of the spout, the shape of the horn and the shape of the anvil are both important techniques for more effectively implementing the present invention. The shapes of the spout, the horn and the amble according to the present invention, which are constituent requirements, will be described in detail below. First, an embodiment of the shape of the spout according to the present invention will be described with reference to FIGS.
This will be described with reference to FIGS. 6 and 7. 4 is a partially cut side view of the spout body according to the present invention, FIG. 5 is a bottom view of the spout body of FIG. 4, FIG. 6 is a view taken along the line CC of FIG. 4, and FIG. Figure 4
3A and 3B show detailed views of the welding rib portion of FIG. In FIG. 4, the spout main body 2 has a screw portion 44 on its upper portion, and can be closed and opened by screw fitting with the cap 3 shown in FIG. A pouring hole 45 for pouring and pouring the contents is provided in the pouring stopper main body 2. The lower portion of the pouring plug main body 2 has a boat-shaped flange 5 that constitutes the pouring plug sealing portion 4, and one or a plurality of welding ribs 6 are provided on the boat-shaped flange 5, but the embodiment of FIG. The case of Article 3 is shown. The opening 8 of the packaging bag 7 shown in FIG.
Is inserted up to the vicinity of the upper end portion 46 of the spout sealing portion 4 of the boat-shaped flange 5 shown in FIG. 4 and ultrasonically sealed by the ultrasonic sealing method described above. In FIGS. 5 and 4, the spout plug seal portion 4 of the boat-shaped flange 5 preferably has a rounded shape such as a round shape or an elliptical shape, but a mold for molding the spout body 2 by injection molding or the like. The R shape is simple because of the ease of processing, and the preferred embodiment shows the case of the R shape. The flange ends 26 and 27, which are both ends of the boat-shaped flange 5, are made thinner so that a step can be prevented from being formed when the seal ends 12 shown in FIG. The welding rib 6 of the boat-shaped flange 5 is the elution plug seal portion 4
Of the welding base 47, which has a proper height and a convex cross-section, and has a shape along the rounded shape of the welding base. The elution base 47 is shown in FIG.
The radius dimension line R1 portion at is a mountain-shaped portion 48, the flange ends 26 and 27 are not the valley-shaped portion 49 indicated by the radius dimension line r1, and the radius instruction lines R1 and r1 are tangential connections. To do.

【００２０】舟型フランジ５の形状を構成する空間部５
０内には、補強リブ５１を複数本設け、この補強リブ５
１と舟型フランジ５との接続箇所である補強リブ接続箇
所５２は、アール形状またはテーパー形状の肉盛部を設
ける。また舟型フランジ５の接合部５３もアール形状の
肉盛部を設ける。補強リブ５１の役割は、山型形状部４
８をホーンとアンビル或いはホーンとホーンで圧接する
故、その圧接力に耐え得る強度を持たせるためのもので
あり、また補強リブ接続箇所５２と接合部５３のアール
形状やテーパー形状の肉盛部の役割は、舟型フランジ４
８に超音波周波数下の機械的高速振動を掛けて溶着シー
ルさせる際、補強リブ接続箇所５２或いは接合部５３が
エッジ構造の場合には、ここに高速振動による応力集中
が発生し、クラックを起こし易く、これを防止するのを
目的とするものであり、超音波シールであるが故の固有
の方法であり、従来のヒートシールの場合には必要な
い。図６は図４に示す注出栓本体２のＣ−Ｃ矢視図であ
り、舟型フランジ５の上方であって、ネジ部４４の下方
である中間部に平行部を有する把持フランジ５４を設け
たものであり、この把持フランジ５４の役割は、図１１
（Ａ）に示す包装袋７の開口部８内に注出栓本体２の舟
型フランジ５部を挿入する際、ロボット等の把持挿入手
段にてこの把持フランジ５４を把持するためのものであ
る。図７は図４に示す舟型フランジ５の両面に設けた溶
着リブ６の図５で示す山型形状部４８に位置する部分の
拡大図である。溶着ベース４７上に設けた溶着リブ６の
幅Ｗと高さｈは超音波シールする際の重要な要素であ
る。図１１（Ａ）の包装袋７の開口部８内の包装袋シー
ル層と溶着リブ６とを超音波振動により先ず超音波シー
ルする際、溶着リブ６が摩擦熱と分子発熱により溶けて
接着剤的役割をし、最終的に包装袋シール層と溶着ベー
ス４７迄溶着させる。この超音波シールにおいて、溶着
リブ６の長さ、条数、幅Ｗ及び高さｈにより超音波シー
ルの良し悪しが異なり、長さ及び条数は超音波発振器の
出力、幅Ｗ及び高さｈはシール部の信頼性に直接影響を
与える因子である。例えば、溶着リブ６の幅Ｗが０．８
ｍｍを越え、また高さｈが０．４ｍｍを越えると溶着に
要する時間が長くなるだけでなく包装袋シール部が過酷
な超音波振動によって破けてしまうという不具合が生じ
るし、逆に幅Ｗが０．２ｍｍ以下、高さｈが０．０５ｍ
ｍ以下だと溶着用の接着剤機能をする糊分が少なくシー
ルが不完全となるので、溶着リブ６の幅Ｗは０．２〜
０．８ｍｍ、望ましくは０．３〜０．６ｍｍ、高さｈは
０．０５〜０．４ｍｍ、望ましくは０．１〜０．３ｍｍ
が本目的には良好な超音波シール結果が得られる。溶着
リブ６の条数は複数条の方がシール信頼性上望ましく、
超音波発振器の所要出力は、溶着リブ６の長さと条数に
よって基本的には決定すればよい。A space portion 5 forming the shape of the boat-shaped flange 5.
A plurality of reinforcing ribs 51 are provided in 0, and the reinforcing ribs 5
A reinforcing rib connection point 52, which is a connection point between 1 and the boat-shaped flange 5, is provided with a rounded or tapered buildup portion. Further, the joint portion 53 of the boat-shaped flange 5 is also provided with a rounded buildup portion. The role of the reinforcing rib 51 is that the chevron-shaped portion 4
Since 8 is pressed against the horn and the anvil or between the horn and the horn, it is intended to have a strength capable of withstanding the pressure contact force. Further, the reinforcing rib connection portion 52 and the joint portion 53 have a rounded shape or a taper-shaped built-up portion. The role of the boat-shaped flange 4
8 is subjected to mechanical high-speed vibration under ultrasonic frequency for welding and sealing, and if the reinforcing rib connection part 52 or the joint part 53 has an edge structure, stress concentration due to high-speed vibration occurs here and cracks occur. It is easy and its purpose is to prevent this. It is a unique method because it is an ultrasonic seal, and is not necessary in the case of the conventional heat seal. FIG. 6 is a view of the pouring plug body 2 shown in FIG. 4 taken along the line C-C, showing a grip flange 54 having a parallel portion in an intermediate portion above the boat-shaped flange 5 and below the screw portion 44. It is provided, and the role of the grip flange 54 is as shown in FIG.
When the boat-shaped flange 5 of the spout main body 2 is inserted into the opening 8 of the packaging bag 7 shown in (A), the gripping flange 54 is gripped by a gripping insertion means such as a robot. . FIG. 7 is an enlarged view of a portion of the welding rib 6 provided on both sides of the boat-shaped flange 5 shown in FIG. 4 located in the chevron-shaped portion 48 shown in FIG. The width W and the height h of the welding rib 6 provided on the welding base 47 are important factors for ultrasonic sealing. When the sealing bag sealing layer in the opening 8 of the packaging bag 7 of FIG. 11A and the welding rib 6 are first ultrasonically sealed by ultrasonic vibration, the welding rib 6 is melted by frictional heat and molecular heat to form an adhesive agent. And plays a role as a final step, and finally, the packaging bag sealing layer and the welding base 47 are welded. In this ultrasonic seal, the quality of the ultrasonic seal differs depending on the length, the number of threads, the width W and the height h of the welding rib 6, and the length and the number of threads depend on the output of the ultrasonic oscillator, the width W and the height h. Is a factor that directly affects the reliability of the seal portion. For example, the width W of the welding rib 6 is 0.8
If the height h exceeds 0.4 mm or the height h exceeds 0.4 mm, not only the time required for welding becomes long, but also the packaging bag seal part is broken due to severe ultrasonic vibration, and conversely the width W is reduced. 0.2 mm or less, height h is 0.05 m
If it is m or less, the amount of glue that functions as an adhesive for welding will be small and the sealing will be incomplete, so the width W of the welding rib 6 is 0.2-
0.8 mm, preferably 0.3 to 0.6 mm, height h is 0.05 to 0.4 mm, preferably 0.1 to 0.3 mm
However, good ultrasonic sealing results are obtained for this purpose. A plurality of welding ribs 6 is preferable in terms of seal reliability,
The required output of the ultrasonic oscillator may be basically determined by the length and the number of threads of the welding rib 6.

【００２１】次に、本発明によるホーン及びアンビルの
形状について、図８及び図９に従い説明する。図８は、
本発明によるホーン２０の実施例であり、（Ｄ）は正面
図、（Ｅ）は側面図を示す。ホーン２０の上端側５５
は、例えば図１に示すブースター１９もしくは超音波振
動子１８に接続するためのネジ部５６を有し、上端側５
５の断面積と下端側５８の断面積の比に比例して振幅拡
大がとれる構造である。ホーン２０の作業端２１の長さ
は図１１（Ａ）の開口部８の長さ以上であり、この作業
端２１の形状が超音波シールの良し悪しを決定する重要
なる技術要素である。図８（Ｅ）に示す作業端２１の幅
は、図４の注出栓シール部４の高さと同寸法以上であれ
ばよい。図８（Ｄ）作業端２１の半径寸法線Ｒ２部がホ
ーン山型形状部５８であり、図５に示す注出栓のフラン
ジ端部２６，２７に圧接するホーンの作業端２１側は、
半径寸法線ｒ２で示すホーン谷型形状部５９となし、半
径寸法線Ｒ２とｒ２とは接線接続とする。図５に示す溶
着ベース４７の山型形状部４８の半径寸法線Ｒ１に、溶
着シールする包装袋の肉厚の０．６倍以下の厚みに相当
する寸法を付加した値を、ホーン山型形状部５８の半径
寸法線Ｒ２とした場合は、山型形状部４８の頂上部近辺
のシールが甘くなり、逆にＲ１に包装袋肉厚の１．４倍
以上の厚みに相当する寸法を付加した値をＲ２とした場
合には、フランジ端部２６，２７及び図１１（Ｂ）のシ
ール耳部１２のシールが甘くなるので、この倍率は、
０．６〜１．４倍、望ましくは０．８〜１．２倍がよ
い。同様に谷部についても溶着ベース谷部半径寸法ｒ１
に包装袋肉厚の０．６倍以下の厚みに相当する寸法を減
じた値をホーン谷部半径寸法ｒ２とした場合には、フラ
ンジ端部２６，２７及び図１１（Ｂ）のシール耳部１２
のシールが甘くなり、逆にｒ１に包装袋肉厚の１．４倍
以上の厚みに相当する寸法を減じけた値をｒ２とした場
合には山型形状部４８の頂上部近辺のシールが甘くなる
ので、この倍率は０．６〜１．４倍、望ましくは０．８
〜１．２倍がよい。図９は、本発明によるアンビル１７
の実施例であり、（Ｆ）は正面図、（Ｇ）は側面図を示
す。アンビル１７は、アンビル本体２５と受け部２４と
からなり、受け部２４の形状が超音波シールの良し悪し
を決定する重要なる技術要素であるが、形状的には、図
８で説明したホーン２０の作業端形状と全く同じで形状
でよい。即ち、図９（Ｇ）の受け部２４の幅は、図８
（Ｅ）の作業端２１と同じ幅、受け部２４のアンビル山
型形状６０の半径寸法は、ホーン山型形状部５８の半径
寸法であるＲ２と同じ、また、アンビル谷型形状部６１
の半径寸法は、ホーン谷型形状部５９の半径寸法である
ｒ２と同じにすればよい。Next, the shapes of the horn and the anvil according to the present invention will be described with reference to FIGS. 8 and 9. Figure 8
It is an embodiment of the horn 20 according to the present invention, (D) is a front view, (E) is a side view. The upper end side 55 of the horn 20
Has a screw portion 56 for connecting to the booster 19 or the ultrasonic transducer 18 shown in FIG.
This is a structure in which the amplitude can be increased in proportion to the ratio of the sectional area of 5 to the sectional area of the lower end side 58. The length of the working end 21 of the horn 20 is longer than the length of the opening 8 in FIG. 11A, and the shape of the working end 21 is an important technical element that determines the quality of the ultrasonic seal. The width of the working end 21 shown in FIG. 8E may be equal to or larger than the height of the spout plug seal portion 4 of FIG. The radius dimension line R2 portion of the working end 21 in FIG. 8 (D) is the horn chevron shaped portion 58, and the working end 21 side of the horn press-contacting the flange ends 26 and 27 of the spout shown in FIG.
There is no horn valley-shaped portion 59 indicated by the radial dimension line r2, and the radial dimension lines R2 and r2 are tangentially connected. A value obtained by adding a dimension corresponding to a thickness equal to or less than 0.6 times the wall thickness of the packaging bag to be weld-sealed to the radial dimension line R1 of the mountain-shaped portion 48 of the welding base 47 shown in FIG. When the radius dimension line R2 of the portion 58 is set, the seal near the top of the mountain-shaped portion 48 becomes loose, and conversely, the dimension corresponding to 1.4 times or more the thickness of the packaging bag is added to R1. When the value is R2, the flange end portions 26 and 27 and the seal ear portion 12 in FIG.
0.6 to 1.4 times, preferably 0.8 to 1.2 times. Similarly, for the valley, the weld base valley radius r1
In the case where the horn valley radius dimension r2 is a value obtained by subtracting a dimension corresponding to a thickness of 0.6 times or less of the packaging bag thickness, the flange end portions 26 and 27 and the seal ear portion of FIG. 12
If the value obtained by subtracting the dimension corresponding to the thickness of the packaging bag which is 1.4 times or more the thickness of r1 from r1 is r2, the seal near the top of the chevron shaped portion 48 will be weaker. Therefore, this magnification is 0.6 to 1.4 times, preferably 0.8.
~ 1.2 times is good. FIG. 9 shows an anvil 17 according to the invention.
Is a front view, and (G) is a side view. The anvil 17 is composed of the anvil body 25 and the receiving portion 24, and the shape of the receiving portion 24 is an important technical element that determines the quality of the ultrasonic seal, but in terms of shape, the horn 20 described in FIG. The shape may be exactly the same as the working end shape. That is, the width of the receiving portion 24 in FIG.
(E) The same width as the working end 21 and the radius dimension of the anvil chevron shape 60 of the receiving portion 24 are the same as the radius dimension R2 of the horn chevron shape portion 58, and the anvil trough shape portion 61.
The radius dimension of r may be the same as the radius dimension r2 of the horn valley-shaped portion 59.

【００２２】以上本発明の実施例を図１，図２及び図３
を中心に説明したが、これらの中で超音波アクチェータ
ー及びアンビル類は、水平方向の移動方向で図示した
が、垂直方向、斜め方向等でもよく、移動方向は特に限
定されるものではない。例えば、包装袋本体は垂直方向
であっても、包装袋上部を９０°近く折り曲げ、超音波
アクチェーターを大略垂直方向で移動させ超音波シール
する方式等も本発明の範疇である。The embodiment of the present invention has been described above with reference to FIGS. 1, 2 and 3.
Although the ultrasonic actuator and the anvils are illustrated in the horizontal moving direction in these figures, they may be in the vertical direction, diagonal direction, etc., and the moving direction is not particularly limited. For example, even if the main body of the packaging bag is in the vertical direction, the method of bending the upper portion of the packaging bag by nearly 90 ° and moving the ultrasonic actuator in the substantially vertical direction to perform ultrasonic sealing is also within the scope of the present invention.

【００２３】[0023]

【発明の効果】本発明の方式に従うと、従来のヒートシ
ール方式のシール時間が平均１．５秒×２回の３秒掛か
るのに対し、本発明の超音波シール方式のシール時間は
０．２〜０．８秒、平均０．５秒程度であり、ヒートシ
ール方式の約１／６に短縮でき、シール安定性に優れ、
且つシール面に夾雑物が存在していても確実にシールが
でき、しかも構造も簡単で、生産性に優れた注出栓溶着
方法及び装置を提供でき、工業的に極めて優れた発明で
ある。According to the method of the present invention, the conventional heat-sealing method takes an average of 1.5 seconds × 2 times of 3 seconds, whereas the ultrasonic sealing method of the present invention has a sealing time of 0. 2 to 0.8 seconds, an average of about 0.5 seconds, which can be shortened to about 1/6 of the heat sealing method, and has excellent sealing stability.
Further, even if foreign matters are present on the sealing surface, the sealing can be surely performed, the structure is simple, and the pouring plug welding method and device excellent in productivity can be provided, which is an industrially excellent invention.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明による超音波アクチェーターとアンビル
との組合せの場合の超音波方式の注出栓溶着部の実施態
様を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of an ultrasonic type spout welding portion in the case of a combination of an ultrasonic actuator and an anvil according to the present invention.

【図２】本発明による超音波アクチェーター２台及び超
音波発振器２台の場合の超音波方式の注出栓溶着部の実
施態様を示す斜視図である。FIG. 2 is a perspective view showing an embodiment of an ultrasonic-type pouring plug welding portion in the case of two ultrasonic actuators and two ultrasonic oscillators according to the present invention.

【図３】本発明による超音波アクチェーター２台及び切
替型超音波発振器１台の場合の超音波方式の注出栓溶着
部の実施態様を示す斜視図である。FIG. 3 is a perspective view showing an embodiment of an ultrasonic-type pouring plug welding portion in the case of two ultrasonic actuators and one switching ultrasonic oscillator according to the present invention.

【図４】本発明による注出栓本体の一部裁断側面図であ
る。FIG. 4 is a partially cut side view of the spout body according to the present invention.

【図５】図４に示す注出栓本体の底面図である。5 is a bottom view of the spout body shown in FIG. 4. FIG.

【図６】図４に示すＣ−Ｃ矢視図である。6 is a view as seen from the direction of arrows CC in FIG.

【図７】図４に示す溶着リブ部の詳細図である。FIG. 7 is a detailed view of a welding rib portion shown in FIG.

【図８】本発明に使用するホーンの実施態様を示す正面
図及び側面図である。FIG. 8 is a front view and a side view showing an embodiment of a horn used in the present invention.

【図９】本発明に使用するアンビルの実施態様を示す正
面図及び側面図である。FIG. 9 is a front view and a side view showing an embodiment of the anvil used in the present invention.

【図１０】一般的注出栓の全体斜視図である。FIG. 10 is an overall perspective view of a general pouring plug.

【図１１】包装袋に注出栓を溶着する前後を示す全体斜
視図である。FIG. 11 is an overall perspective view showing before and after welding a pouring plug to a packaging bag.

【図１２】従来のヒートシールによる注出栓溶着部わ示
す斜視図である。FIG. 12 is a perspective view showing a welding portion of a pouring plug by conventional heat sealing.

【符号の説明】[Explanation of symbols]

１ 注出栓 ２ 注出栓本体 ３
キャップ ４ 注出栓シール部 ５ 舟型フランジ ６
溶着リブ ７ 包装袋 ８ 開口部 ９
注出口 １０ シール盤 １１ シール盤 １
２ シール耳部 １３ ストレート部 １４ 熱盤 １
５ 熱盤 １６ 超音波アクチェーター １７ アンビル １８ 超音波振動子 １９ ブースター ２
０ ホーン ２１ 作業端 ２２ 高周波ケーブル ２
３ 超音波発振器 ２４ 受け部 ２５ アンビル本体 ２
６ フランジ端部 ２７ フランジ端部 ２８ シール対象部 ２９ 限時タイマー ３０ 超音波アク
チェーター ３１ 超音波振動子 ３２ ブースター ３
３ ホーン ３４ 高周波ケーブル ３５ 超音波発振器 ３
６ 限時タイマー ３７ 作業端 ３８ 超音波アクチェーター ３９ 超音波振動子 ４０ 高周波ケーブル ４１ 切替型超音波発振器 ４２ 限時タイマ
ー ４３ 限時タイマー ４４ ネジ部 ４
５ 注入出孔 ４６ 上端部 ４７ 溶着ベース ４
８ 山型形状部 ４９ 谷型形状部 ５０ 空間部 ５
１ 補強リブ ５２ 補強リブ接続箇所 ５３ 接合部 ５
４ 把持フランジ ５５ 上端側 ５６ ネジ部 ５
７ 下端側 ５８ ホーン山型形状部 ５９ ホーン谷型
形状部 ６０ アンビル山型形状部 ６１ アンビル谷
型形状部1 spout cap 2 spout body 3
Cap 4 Pouring tap seal part 5 Boat flange 6
Welding rib 7 Packaging bag 8 Opening 9
Spout 10 Sealing board 11 Sealing board 1
2 Seal ears 13 Straight part 14 Hot platen 1
5 Hot Plate 16 Ultrasonic Actuator 17 Anvil 18 Ultrasonic Transducer 19 Booster 2
0 Horn 21 Working end 22 High frequency cable 2
3 Ultrasonic oscillator 24 Receiver 25 Anvil body 2
6 Flange end 27 Flange end 28 Sealing target 29 Time limit timer 30 Ultrasonic actuator 31 Ultrasonic transducer 32 Booster 3
3 Horn 34 High-frequency cable 35 Ultrasonic oscillator 3
6 Time Limit Timer 37 Working End 38 Ultrasonic Actuator 39 Ultrasonic Transducer 40 High Frequency Cable 41 Switchable Ultrasonic Oscillator 42 Time Limit Timer 43 Time Limit Timer 44 Screw Part 4
5 Inlet / outlet hole 46 Upper end 47 Welding base 4
8 mountain-shaped portion 49 valley-shaped portion 50 space portion 5
1 Reinforcement rib 52 Reinforcement rib connection point 53 Joint part 5
4 Grip flange 55 Upper end side 56 Screw part 5
7 Lower end side 58 Horn mountain shape part 59 Horn valley shape part 60 Anvil mountain shape part 61 Anvil valley shape part

Claims (12)

【特許請求の範囲】[Claims] 【請求項１】 熱可塑性樹脂からなるシール層を内面に
有する包装袋に、熱可塑性樹脂からなる注出栓を挿入後
溶着する方式において、注出栓のシール面に直交する軸
線上に超音波周波数下における機械的振動をする超音波
アクチェーターを設置し、注出栓を介して対向し且つ注
出栓のシール面に対し直交する軸線上に、アンビルもし
くは超音波アクチェーターを設置すると共に、対向する
超音波アクチェーターとアンビルもしくは超音波アクチ
ェーターが注出栓のシール面に対して直交する軸線上を
相互に同期しながら閉開駆動することにより溶着するこ
とを特徴とする注出栓溶着方法。1. A method in which a spout plug made of a thermoplastic resin is inserted and then welded to a packaging bag having a seal layer made of a thermoplastic resin on its inner surface, and ultrasonic waves are applied along an axis orthogonal to the sealing surface of the spout plug. An ultrasonic actuator that mechanically vibrates under frequency is installed, and an anvil or ultrasonic actuator is installed on the axis facing the sealing surface of the discharging plug and facing the sealing surface of the discharging plug. A method for welding a pouring plug, characterized in that the ultrasonic actuator and the anvil or the ultrasonic actuator are driven by closing and opening in synchronization with each other on an axis orthogonal to the sealing surface of the pouring plug in synchronization with each other. 【請求項２】 対向する超音波アクチェーター各々の共
振周波数が異なった値であることを特徴とする請求項１
記載の注出栓溶着方法。2. The resonance frequency of each of the ultrasonic actuators facing each other has different values.
The method for welding the spout plug as described. 【請求項３】 対向する超音波アクチェーターを、振動
子切替え機能を有する切替型超音波発振器にて逐次切替
操作を行なわしめることにより、１台の超音波発振器で
対向する超音波アクチェーターを駆動させることを特徴
とする請求項１記載の注出栓溶着方法。3. A single ultrasonic oscillator drives the opposing ultrasonic actuators by sequentially switching the opposing ultrasonic actuators with a switching ultrasonic oscillator having a transducer switching function. The method of welding a pouring plug according to claim 1, wherein 【請求項４】 包装袋に注出栓を超音波シールする前段
の工程で、注出栓を包装袋の開口部内へ挿入位置決め
後、開口部の両外側或いは片側から温度制御された熱
棒、超音波もしくは高周波により注出栓本体の舟型フラ
ンジ側に軽く圧接させるというスポット溶着により予め
仮シールすることを特徴とする請求項１，２又は３記載
の注出栓溶着方法。4. A heating rod, the temperature of which is controlled from both outside or one side of the opening, after the dispensing plug is inserted and positioned in the opening of the packaging bag in the preceding step of ultrasonically sealing the dispensing plug in the packaging bag. 4. The method for welding a pouring plug according to claim 1, wherein the temporary sealing is carried out in advance by spot welding in which the pouring body is lightly pressed against the boat-shaped flange side by ultrasonic waves or high frequencies. 【請求項５】 超音波発振制御方式が、時間制御、移動
量制御またはエネルギー制御もしくは、これらの組合せ
による制御方式であることを特徴とする請求項１，２又
は３記載の注出栓溶着方法。5. The method according to claim 1, 2 or 3, wherein the ultrasonic oscillation control method is a time control method, a movement amount control method, an energy control method, or a combination method thereof. . 【請求項６】 注出栓の舟型フランジ両面の各々に、幅
０．２〜０．８ｍｍ、高さ０．０５〜０．４ｍｍの溶着
リブを１条ないし複数条設け、舟型フランジ形状を構成
する空間部内に補強リブを複数個設け、補強リブと舟型
フランジとの接続箇所及び／もしくは、舟型フランジ接
合部をアール形状またはテーパー形状の肉盛部を設けた
ことを特徴とする請求項１，２又は３記載の注出栓溶着
方法。6. A boat-shaped flange shape in which one or a plurality of welding ribs having a width of 0.2 to 0.8 mm and a height of 0.05 to 0.4 mm are provided on both sides of the boat-shaped flange of the pouring plug. A plurality of reinforcing ribs are provided in the space part that configures, and the connecting portion between the reinforcing rib and the boat-shaped flange and / or the boat-shaped flange joint portion is provided with a rounded or tapered buildup portion. The method for welding a pouring plug according to claim 1, 2, or 3. 【請求項７】 ホーンの作業端形状及び／もしくはアン
ビルの受け部形状が、注出栓本体の舟型フランジの溶着
ベースの山型形状部の半径寸法に包装袋肉厚の０．６〜
１．４倍の厚みに相当する寸法を付加した半径寸法であ
るホーン山型形状部及び／もしくはアンビル山型形状部
であり、舟型フランジの溶着ベースの谷型形状部の半径
寸法から包装袋肉厚の０．６〜１．４倍の厚みに相当す
る寸法を減じた半径寸法であるホーン谷型形状部及び／
もしくはアンビル谷型形状部であることを特徴とする請
求項１，２又は３記載の注出栓溶着方法。7. The shape of the working end of the horn and / or the shape of the receiving portion of the anvil is set to the radial dimension of the mountain-shaped portion of the welding base of the boat-shaped flange of the spout body, and the thickness of the packaging bag is 0.6 to.
It is a horn mountain-shaped portion and / or anvil mountain-shaped portion having a radius dimension added with a dimension corresponding to 1.4 times the thickness, and the packaging bag is obtained from the radius dimension of the valley-shaped portion of the welding base of the boat flange. A horn valley-shaped portion having a radius dimension reduced by a dimension corresponding to 0.6 to 1.4 times the wall thickness and /
Alternatively, the spout welding method according to claim 1, wherein the spout is an anvil valley-shaped portion. 【請求項８】 請求項１、２、３、４、５、６又は７記
載の注出栓溶着方法により注出栓を包装袋に溶着した
後、更にヒートシールにより溶着することを特徴とする
注出栓溶着方法。8. The welding plug according to claim 1, 2, 3, 4, 5, 6 or 7, after the outlet plug is welded to the packaging bag, and then heat sealed. Welding method for spout plugs. 【請求項９】 熱可塑性樹脂からなるシール層を内面に
有する包装袋に、熱可塑性樹脂からなる注出栓を挿入後
溶着する装置において、注出栓のシール面に直交する軸
線上に超音波周波数下における機械的振動をする超音波
アクチェーターを設置し、注出栓を介して対向させ、且
つ注出栓のシール面に対し直交する軸線上に、アンビル
もしくは超音波アクチェーターを設置すると共に、対向
する超音波アクチェーターとアンビルもしくは超音波ア
クチェーターを注出栓のシール面に対して直交する軸線
上を相互に同期させながら閉開駆動させる構成からなる
注出栓溶着装置。9. An apparatus for welding a spout plug made of a thermoplastic resin to a packaging bag having a seal layer made of a thermoplastic resin on the inner surface thereof and then welding the spout plug made of the thermoplastic resin on an axis orthogonal to the sealing surface of the spout plug. An ultrasonic actuator that mechanically vibrates under frequency is installed, facing through the spout, and an anvil or ultrasonic actuator is installed on the axis perpendicular to the sealing surface of the spout and facing each other. A pouring plug welding device comprising a structure in which an ultrasonic actuator and an anvil or an ultrasonic actuator that are driven to close and open are synchronized with each other on an axis orthogonal to the sealing surface of the spout. 【請求項１０】 対向させた超音波アクチェーター各々
の共振周波数を異なった値に設定したことを特徴とする
請求項９記載の注出栓溶着装置。10. The spout welding apparatus according to claim 9, wherein the resonance frequencies of the ultrasonic actuators facing each other are set to different values. 【請求項１１】 対向させた超音波アクチェーターを振
動子切替機能を有する切替型超音波発振器にて逐次切替
操作を行なわしめることにより、１台の超音波発振器で
対向する超音波アクチェーターを駆動させる構成からな
ることを特徴とする請求項９記載の注出栓溶着装置。11. A configuration in which a facing ultrasonic actuator is driven by one ultrasonic oscillator by sequentially switching the facing ultrasonic actuators with a switching ultrasonic oscillator having a vibrator switching function. The spout welding device according to claim 9, wherein 【請求項１２】 請求項９、１０又は１１記載の注出栓
溶着装置の後工程にヒートシール装置を設置したことを
特徴とする注出栓溶着装置。12. A pouring plug welding device, wherein a heat sealing device is installed in a step subsequent to the pouring plug welding device according to claim 9, 10 or 11.
JP6118708A 1993-12-27 1994-05-31 Method and apparatus for welding pour plug Pending JPH07323478A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP6118708A JPH07323478A (en) 1994-05-31 1994-05-31 Method and apparatus for welding pour plug
US08/353,431 US5606844A (en) 1993-12-27 1994-12-09 Process for producing a self-supporting package having an outlet stopper and an apparatus for producing said package
AU80365/94A AU672932B2 (en) 1993-12-27 1994-12-12 A process for producing a self-supporting package having an outlet stopper and an apparatus for producing said package
DE69403767T DE69403767T2 (en) 1993-12-27 1994-12-14 Method and device for producing a stand-up pouch with a closure
EP19940119700 EP0661208B1 (en) 1993-12-27 1994-12-14 Process and apparatus for producing a selfsupporting package having an outlet stopper
ES94119700T ES2105481T3 (en) 1993-12-27 1994-12-14 PROCESS AND APPARATUS TO PRODUCE A SELF-SUPPORTING PACKAGE HAVING AN EXIT PLUG.
CA 2138343 CA2138343C (en) 1993-12-27 1994-12-16 Process for producing a self-supporting package having an outlet stopperand an apparatus for producing said package
KR1019940035885A KR0181350B1 (en) 1993-12-27 1994-12-22 Process for producing a self-supporting package having an outlet stopper and an apparatus for producing said package

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6118708A JPH07323478A (en) 1994-05-31 1994-05-31 Method and apparatus for welding pour plug

Publications (1)

Publication Number Publication Date
JPH07323478A true JPH07323478A (en) 1995-12-12

Family

ID=14743163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6118708A Pending JPH07323478A (en) 1993-12-27 1994-05-31 Method and apparatus for welding pour plug

Country Status (1)

Country Link
JP (1) JPH07323478A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1059388A (en) * 1996-08-20 1998-03-03 Dainippon Printing Co Ltd Seal gusset bag
EP1501736A1 (en) * 2002-04-27 2005-02-02 River Solutions, Inc. Gusseted flexible bottle with fitment and method of fabrication
JP2014024591A (en) * 2012-07-30 2014-02-06 Ishida Co Ltd Lateral seal device of packing machine
WO2014173735A1 (en) * 2013-04-25 2014-10-30 Herrmann Ultraschalltechnik Gmbh & Co. Kg Ultrasonic welding apparatus having a plurality of sonotrodes
JP2016069024A (en) * 2014-09-30 2016-05-09 凸版印刷株式会社 Injection container
CN107662345A (en) * 2016-12-17 2018-02-06 黄山富田精工制造有限公司 The welding system and its method of tablet
WO2020105664A1 (en) * 2018-11-20 2020-05-28 ブランソン・ウルトラソニックス・コーポレーション Bonding method and bonding device

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JPH06121559A (en) * 1992-10-07 1994-04-28 Matsushita Electric Ind Co Ltd Driving method for ultrasonic motor
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JPH06121559A (en) * 1992-10-07 1994-04-28 Matsushita Electric Ind Co Ltd Driving method for ultrasonic motor
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1059388A (en) * 1996-08-20 1998-03-03 Dainippon Printing Co Ltd Seal gusset bag
EP1501736A1 (en) * 2002-04-27 2005-02-02 River Solutions, Inc. Gusseted flexible bottle with fitment and method of fabrication
EP1501736A4 (en) * 2002-04-27 2011-05-25 Smart Bottle Inc Gusseted flexible bottle with fitment and method of fabrication
JP2014024591A (en) * 2012-07-30 2014-02-06 Ishida Co Ltd Lateral seal device of packing machine
WO2014173735A1 (en) * 2013-04-25 2014-10-30 Herrmann Ultraschalltechnik Gmbh & Co. Kg Ultrasonic welding apparatus having a plurality of sonotrodes
US9427912B2 (en) 2013-04-25 2016-08-30 Herrmann Ultraschalltechnik Gmbh & Co. Kg Ultrasonic welding apparatus having plurality of sonotrodes
EP2988919B1 (en) 2013-04-25 2017-06-14 Herrmann Ultraschalltechnik GmbH & Co. KG Ultrasonic welding apparatus having a plurality of sonotrodes
JP2016069024A (en) * 2014-09-30 2016-05-09 凸版印刷株式会社 Injection container
CN107662345A (en) * 2016-12-17 2018-02-06 黄山富田精工制造有限公司 The welding system and its method of tablet
WO2020105664A1 (en) * 2018-11-20 2020-05-28 ブランソン・ウルトラソニックス・コーポレーション Bonding method and bonding device
JP2020082422A (en) * 2018-11-20 2020-06-04 ブランソン・ウルトラソニックス・コーポレーション Bonding method and bonding apparatus

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