JPH0957853A - Controlling method for ultrasonic sealing device and apparatus therefor - Google Patents

Controlling method for ultrasonic sealing device and apparatus therefor

Info

Publication number
JPH0957853A
JPH0957853A JP21169295A JP21169295A JPH0957853A JP H0957853 A JPH0957853 A JP H0957853A JP 21169295 A JP21169295 A JP 21169295A JP 21169295 A JP21169295 A JP 21169295A JP H0957853 A JPH0957853 A JP H0957853A
Authority
JP
Japan
Prior art keywords
ultrasonic
rotary drum
laminated body
clearance
sealing device
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.)
Withdrawn
Application number
JP21169295A
Other languages
Japanese (ja)
Inventor
Masao Oe
雅雄 大江
Koji Nakahara
孝治 中原
Tamotsu Yamane
保 山根
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP21169295A priority Critical patent/JPH0957853A/en
Publication of JPH0957853A publication Critical patent/JPH0957853A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • 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
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8223—Worm or spindle mechanisms
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8246—Servomechanisms, e.g. servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92651—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops
    • B29C66/92653—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops said stops being adjustable
    • 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
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/932—Measuring or controlling the joining process by measuring or controlling the speed by measuring the speed
    • B29C66/9321—Measuring or controlling the joining process by measuring or controlling the speed by measuring the speed with special speed measurement means or methods
    • 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
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93441—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed the speed being non-constant over time
    • 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
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93451—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed by controlling or regulating the rotational speed, i.e. the speed of revolution
    • 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
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • B29C66/9392—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges in explicit relation to another variable, e.g. speed diagrams
    • 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
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • 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
    • B29C66/10—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
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • 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
    • B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
    • B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4871—Underwear
    • B29L2031/4878—Diapers, napkins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To supply a high quality product by eliminating inferiority by a method wherein sealing is automated, concerning a method and an apparatus for control of an ultrasonic sealing device with which a surface layer part of a laminate is bonded. SOLUTION: A laminate 1 is wound on a rotary drum 2, and continuously supplied to a gap S part. A surface part of the laminate 1 is pressed with a hone 4 integrally composed of a convertor 6 and a solid booster 5, and bonded with an ultrasonic wave. A servomotor 16 is revolved by being controlled by a control part, which rotates a worm wheel via a worm shaft 15 and a worm gear 14, transfers a thread bar 12 laterally, transfers a mechanical stopper 11 to a suitable position, fixes a position by a cylinder 10 of a transfer member 9, and makes the gap S of the hone 4 fixed to the transfer member 9 an appropriate gap. A transfer speed of the laminate 1 is obtained from the number of rotations of the rotary drum 2. Since the servomotor 16 is controlled so that the gap S comes to be most suitable for the transfer speed, sealing is accurately carried out.

Description

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

【０００１】[0001]

【発明の属する技術分野】本発明は、紙おむつ等の積層
体の表層部を接着する超音波シール装置の制御方法及び
制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method and control device for an ultrasonic sealing device for adhering a surface layer portion of a laminated body such as a paper diaper.

【０００２】[0002]

【従来の技術】図８は、従来の超音波シール装置の側面
図を示すもので、このシール装置は回転ドラム２に巻き
付けられて送られる紙おむつ等の積層体１が、超音波シ
ール装置７に対し、回転ドラム２の水平位置に来た時に
対向する超音波シール装置７からの超音波押圧によって
積層体１の表層部がシールされるようになっている。2. Description of the Related Art FIG. 8 is a side view of a conventional ultrasonic sealing device. In this sealing device, a laminated body 1 such as a paper diaper wound around a rotating drum 2 and sent is arranged in an ultrasonic sealing device 7. On the other hand, when the rotating drum 2 comes to the horizontal position, the surface layer portion of the laminated body 1 is sealed by the ultrasonic pressure from the ultrasonic sealing device 7 facing the rotating drum 2.

【０００３】図において、１は連続した帯状材の紙おむ
つ等の積層体、２は積層体１を巻き付けて送る回転ドラ
ム、３は積層体１の方向転換用のアイドルロール、４は
超音波によって積層体１に押圧する超音波シール装置７
の先端部のホーン、５は超音波発生用のソリッドブース
ター、６はコンバーターで、これら５及び６は前記ホー
ン４と一体になって超音波シール装置７を構成してい
る。In the figure, 1 is a laminated body such as a continuous diaper of a band-shaped material, 2 is a rotary drum around which the laminated body 1 is wound and fed, 3 is an idle roll for changing the direction of the laminated body 1, and 4 is laminated by ultrasonic waves. Ultrasonic sealing device 7 that presses against body 1
The horn 5 at the tip end of 5 is a solid booster for generating ultrasonic waves, and 6 is a converter. These 5 and 6 are integrated with the horn 4 to form an ultrasonic sealing device 7.

【０００４】８は超音波シール装置７を支持する支持フ
レーム、９は支持フレーム８に支持された超音波シール
装置７全体をガイドに沿って移動させる移動部材、１０
は移動部材９を常時回転ドラム２側へ押圧する油圧シリ
ンダー、１１は移動部材９の先端と当接して超音波シー
ル装置７の位置決めをするメカニカルストッパー、１２
は先端にメカニカルストッパー１１を有するネジ棒、１
９はネジ棒１２と噛合っているナット、２０はホーン４
先端と対向する回転ドラム２とのスキマ量を検出するダ
イヤルゲージである。このスキマ量は、図５で示すよう
にスキマ量Ｓは、積層体１の厚さＳ１とホーン４先端ま
でのスキマＳ２との合計である。Reference numeral 8 is a supporting frame for supporting the ultrasonic sealing device 7, 9 is a moving member for moving the entire ultrasonic sealing device 7 supported by the supporting frame 8 along a guide, 10
Is a hydraulic cylinder that constantly pushes the moving member 9 toward the rotary drum 2, 11 is a mechanical stopper that contacts the tip of the moving member 9 and positions the ultrasonic sealing device 7, 12
Is a threaded rod with a mechanical stopper 11 at the tip, 1
9 is a nut meshing with the screw rod 12, 20 is a horn 4
It is a dial gauge that detects the amount of clearance between the tip and the rotary drum 2 that faces the tip. As shown in FIG. 5, the clearance amount S is the sum of the thickness S1 of the laminate 1 and the clearance S2 up to the tip of the horn 4.

【０００５】上記従来の超音波シール装置では、図５に
示すように積層体１の厚さＳ１によって、所定スキマ量
Ｓが選定され、この選定された所定スキマ量Ｓに合わせ
て超音波シール装置７を位置決めするために、ナット１
９を回転させてネジ棒１２の先端に配置されたメカニカ
ルストッパー１１を図の左方向（又は右方向）に移動調
整する。In the above-mentioned conventional ultrasonic sealing device, a predetermined clearance amount S is selected according to the thickness S1 of the laminated body 1 as shown in FIG. 5, and the ultrasonic sealing device is adjusted in accordance with the selected predetermined clearance amount S. Nut 1 for positioning 7
9 is rotated to move and adjust the mechanical stopper 11 arranged at the tip of the screw rod 12 in the left direction (or right direction) of the drawing.

【０００６】一方、移動部材９は油圧シリンダー１０に
よって、常時、図の右方向に押圧しメカニカルストッパ
ー１１に当接させている。すなわち、スキマ量Ｓを拡げ
たい場合には、ナット１９を回転させてメカニカルスト
ッパー１１を図の左方向へ移動させ、逆に、スキマ量Ｓ
を狭める場合には、ナット１９を逆回転させてメカニカ
ルストッパー１１を図の右方向へ移動させる。そして、
ダイヤルゲージ２０によって所定スキマ量Ｓを確認して
いる。On the other hand, the moving member 9 is constantly pressed by the hydraulic cylinder 10 in the right direction in the drawing to be brought into contact with the mechanical stopper 11. That is, when it is desired to increase the clearance amount S, the nut 19 is rotated to move the mechanical stopper 11 to the left in the figure, and conversely, the clearance amount S is increased.
When narrowing, the nut 19 is rotated in the reverse direction to move the mechanical stopper 11 to the right in the figure. And
The predetermined clearance amount S is confirmed by the dial gauge 20.

【０００７】所定スキマ量Ｓが設定された後、回転ドラ
ム２が回転し、積層体１が送られて回転ドラム２の水平
位置に来た時に対向する超音波シール装置７からのホー
ン４による超音波押圧によって積層体１の表層部がシー
ルされる。After the predetermined clearance S has been set, the rotary drum 2 rotates, and when the laminated body 1 is fed to reach the horizontal position of the rotary drum 2, the ultrasonic sealing device 7 facing the supersonic horn 4 superposes it. The surface layer of the laminated body 1 is sealed by the sonic pressure.

【０００８】[0008]

【発明が解決しようとする課題】従来の超音波シール装
置７では、所定スキマ量Ｓが設定された後、回転ドラム
２の回転速度が停止から目標速度まで上昇し、同時に積
層体１の送り速度も上昇するが、超音波シール装置７か
らの超音波押圧力が一定に働くため、積層体１の送り速
度の上昇に対して、所定スキマ量Ｓが追従しないという
問題があった。In the conventional ultrasonic sealing device 7, the rotation speed of the rotary drum 2 increases from the stop to the target speed after the predetermined clearance S is set, and at the same time, the feed speed of the laminated body 1 is increased. However, since the ultrasonic pressing force from the ultrasonic sealing device 7 works constantly, there is a problem that the predetermined gap amount S does not follow the increase in the feed speed of the laminated body 1.

【０００９】例えば、積層体１の送り速度が遅い場合に
スキマ量Ｓが小さいと、同じ場所を何回も押圧力が作用
し、積層体１の接着部が破れてしまう問題があり、ま
た、積層体１の送り速度が速い場合にスキマ量Ｓが大き
いと、加圧力が不足し接着が不十分となってしまうと言
う問題があった。For example, when the feed rate of the laminated body 1 is slow and the gap amount S is small, there is a problem that a pressing force acts on the same place many times and the bonded portion of the laminated body 1 is broken. When the feed rate of the laminated body 1 is high and the amount of clearance S is large, there is a problem that the pressure is insufficient and the adhesion is insufficient.

【００１０】本発明は、上記従来技術の問題を解消する
ため、積層体の送り速度に見合った最適スキマ量に自動
的に調整し、積層体表層部のシールが適正で、高品質の
積層体を作り出すことができる、超音波シール装置の制
御方法を提供することを目的とする。In order to solve the above-mentioned problems of the prior art, the present invention automatically adjusts the optimum amount of clearance corresponding to the feed speed of the laminated body, has a proper seal on the surface layer portion of the laminated body, and is a high quality laminated body. It is an object of the present invention to provide a method for controlling an ultrasonic sealing device that can produce

【００１１】[0011]

【課題を解決するための手段】この目的を達成するた
め、本発明においては、（１）回転ドラムに巻き付けら
れて送られる積層体の表層部を超音波押圧ホーンで押圧
し、同表層部を接着する超音波シール装置の制御方法で
あって、前記回転ドラムの回転数を検出し；同回転数か
ら前記積層体の移送速度を検出し；同移送速度に応じて
前記回転ドラムと前記超音波押圧ホーン先端部との間の
最適スキマ量を設定し；同最適スキマ量に対応する前記
超音波押圧ホーンの位置決めをサーボモータによって制
御することを特徴とする超音波シール装置の制御方法を
提供する。In order to achieve this object, in the present invention, (1) the surface layer portion of a laminate wound around a rotary drum and sent is pressed by an ultrasonic pressing horn, and the surface layer portion is A method of controlling an ultrasonic sealing device for adhering, comprising: detecting a rotation speed of the rotating drum; detecting a transfer speed of the laminate from the rotation speed; the rotating drum and the ultrasonic wave according to the transfer speed. Provided is a method for controlling an ultrasonic sealing device, characterized in that an optimum amount of clearance between the tip of a pressing horn is set; positioning of the ultrasonic pressing horn corresponding to the optimum amount of clearance is controlled by a servomotor. .

【００１２】（２）更に、回転ドラムに巻き付けて送ら
れる積層体の表層部を押圧して接着する超音波押圧ホー
ンと、同超音波押圧ホーンの先端部と前記回転ドラムと
の初期スキマ量を設定する位置決め装置とからなり、同
位置決め装置を移動して前記スキマ量を制御する超音波
シール装置の制御装置であって、前記位置決め装置を移
動させるサーボモータと；前記回転ドラムの回転数を検
出するドラム回転数検出器と；前記サーボモータの回転
数を検出するサーボモータ回転数検出器と；前記ドラム
回転数検出器からの信号を入力し、前記回転ドラムの回
転数から前記積層体の移送速度を算出し、同移送速度に
よって前記回転ドラムと前記超音波押圧ホーン先端部と
の最適スキマ量を設定すると共に、前記サーボモータ回
転数検出器の信号を参照して前記位置決め装置が最適ス
キマ量となるように前記サーボモータを制御する制御部
とを具備してなることを特徴とする超音波シール装置の
制御装置も提供する。(2) Further, the ultrasonic pressing horn for pressing and adhering the surface layer of the laminated body wound around the rotary drum and the initial clearance between the tip of the ultrasonic pressing horn and the rotary drum are set. A control device for an ultrasonic sealing device, comprising: a positioning device for setting, which controls the gap amount by moving the positioning device, and a servomotor for moving the positioning device; A drum rotation speed detector for detecting the rotation speed of the servo motor; and a signal from the drum rotation speed detector for inputting a signal from the rotation speed of the rotating drum to transfer the laminate. The speed is calculated, and the optimum clearance between the rotary drum and the tip of the ultrasonic pressing horn is set according to the same transfer speed, and the signal from the servo motor speed detector is also set. The positioning device with reference to also provide control apparatus for ultrasonic sealing apparatus characterized by comprising and a control unit for controlling the servo motor so as to optimize clearance amount.

【００１３】本発明は前述のような制御方法及び制御装
置であり、その（１）の制御方法では、回転ドラムの回
転数から、同回転ドラムに巻き付けられて移送される積
層体の移送速度を検出し、同移送速度に対応して、その
速度にふさわしい回転ドラムと超音波押圧ホーン先端部
との最適スキマ量が設定される。そして、設定されたス
キマ量の調整はサーボモータを所定回転数（又は回転
角）作動し、この回転を直線運動に変換して超音波押圧
と回転ドラム間のスキマ量を調整し、スキマ量に見合っ
た超音波押圧ホーンの初期位置決めが行われる。この直
線運動は、例えば、サーボモータの回転をウォームギア
及びウォームホイールを介して直線状の移動に変換し、
メカニカルストッパーを所定の位置に移動すればよい。The present invention is the control method and control apparatus as described above. In the control method (1), the transfer speed of the laminated body wound around the rotary drum and transferred is determined from the number of rotations of the rotary drum. The optimum amount of clearance between the rotary drum and the tip of the ultrasonic pressing horn, which is detected and corresponds to the transfer speed, is set according to the detected transfer speed. Then, the adjustment of the set clearance amount is performed by operating the servo motor at a predetermined rotation number (or rotation angle), converting this rotation into a linear motion, and adjusting the clearance amount between the ultrasonic pressing and the rotating drum to obtain the clearance amount. The initial positioning of the matching ultrasonic pressing horn is performed. This linear movement converts, for example, the rotation of the servomotor into a linear movement via a worm gear and a worm wheel,
It suffices to move the mechanical stopper to a predetermined position.

【００１４】最適スキマ量になったスキマ部に積層体が
送られて、回転ドラムの水平位置に来た時に、対向する
超音波シール装置の押圧ホーンからの超音波押圧によっ
て積層体の表層部がシールされる。When the laminated body is fed to the gap portion where the optimum clearance amount is reached and reaches the horizontal position of the rotary drum, the surface layer portion of the laminated body is removed by ultrasonic pressing from the pressing horn of the ultrasonic sealing device which is opposed. Sealed.

【００１５】このように、本発明の制御方法は積層体の
移送速度に応じてスキマ量が設定されているので、シー
ル不良や、接着部の破損を起こすことが解消され、適正
なシールが行われる。As described above, according to the control method of the present invention, since the clearance amount is set according to the transfer speed of the laminated body, it is possible to prevent the defective sealing and the damage of the bonding portion, and to perform the proper sealing. Be seen.

【００１６】（２）の制御装置においては、（１）の方
法を実施する装置として、制御部において、ドラム回転
数検出器からの回転ドラムの回転数から回転ドラムに巻
き付けられて移送される積層体の移送速度を検出し、同
移送速度に対応してその速度にふさわしい回転ドラムと
超音波押圧ホーン先端部との最適スキマ量が設定され
る。制御部ではサーボモータ回転数検出器の信号を参照
して位置決め装置を移動させて前述の最適スキマ量とな
るようにサーボモータを回転させる。サーボモータの回
転数は超音波ホーンと回転ドラム間の移動を行う位置決
め装置へ伝えられ、位置決め装置は超音波押圧ホーンの
位置を設定し、回転ドラムとの間の最適スキマ量となる
ように移動する。この位置決め装置は、例えば、ウォー
ムギア及びウォームホイールを介してメカニカルストッ
パーを移動させ、スキマ量に見合った超音波押圧ホーン
の位置決めを行うようにすれば良い。In the control device of (2), as the device for carrying out the method of (1), the control section causes the laminated body to be wound around the rotary drum from the rotational speed of the rotary drum from the drum rotational speed detector and transferred. The transfer speed of the body is detected, and the optimal amount of clearance between the rotary drum and the tip of the ultrasonic pressing horn is set corresponding to the transfer speed of the body. In the control unit, the positioning device is moved with reference to the signal from the servo motor rotation speed detector, and the servo motor is rotated so as to obtain the optimum amount of clearance. The rotation speed of the servo motor is transmitted to the positioning device that moves between the ultrasonic horn and the rotating drum, and the positioning device sets the position of the ultrasonic pressing horn and moves so as to obtain the optimum amount of clearance with the rotating drum. To do. In this positioning device, for example, a mechanical stopper may be moved via a worm gear and a worm wheel to position the ultrasonic pressing horn in accordance with the amount of clearance.

【００１７】最適スキマ量になったスキマ部に積層体が
送られて、回転ドラムの水平位置に来た時に、対向する
超音波押圧ホーンからの超音波押圧によって積層体の表
層部がシールされる。When the laminated body is fed to the gap portion having the optimum amount of clearance and reaches the horizontal position of the rotary drum, the surface layer portion of the laminated body is sealed by ultrasonic pressing from the ultrasonic pressing horns facing each other. .

【００１８】このように、本発明の制御装置は積層体の
移送速度に応じて最適のスキマ量が設定されるように超
音波シール装置を制御するので、シール不良や、接着部
の破損を起こすことが解消され、適正なシールが行われ
る。As described above, the control device of the present invention controls the ultrasonic sealing device so that the optimum amount of clearance is set according to the transfer speed of the laminated body, so that the sealing failure or the damage of the adhesive portion occurs. This is eliminated and proper sealing is performed.

【００１９】[0019]

【発明の実施の形態】以下、本発明の実施の形態につい
て図面に基づいて具体的に説明する。図１は本発明の実
施の一形態に係る超音波シール装置の側面図、図２は図
１のＸ−Ｘ矢視部分断面図、図３は図１におけるサーボ
モータの回転数検出部の詳細な説明図である。これらの
図において、符号１乃至１２は図８の従来装置と同一部
分であるため、そのまま引用し、詳しい説明は省略する
が、本発明の特徴となるところは符号１３乃至１８の部
分であり、これらの部分を中心に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings. 1 is a side view of an ultrasonic sealing device according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional view taken along the line XX of FIG. 1, and FIG. 3 is a detail of a rotation speed detection unit of a servo motor in FIG. FIG. In these drawings, reference numerals 1 to 12 are the same parts as those of the conventional apparatus in FIG. 8, and therefore are cited as they are, and detailed description thereof will be omitted. However, the features of the present invention are the parts of reference numerals 13 to 18. These parts will be mainly described.

【００２０】図１、図２において１３はウォームギア１
４と噛み合ったウォームホイールで、その回転によって
ネジ棒１２を図の左方向（又は右方向）へ移動させる。
１５はウォームギア１４に連結されたウォーム軸、１６
はサーボモータで、前述のようにウォーム軸１５と連結
されたウォームギア１４及びウォームホイール１３を介
して、ネジ棒１２を図の左方向（又は右方向）へ移動さ
せる。１７は図３に示すようにサーボモータ１６の軸に
取着された突起部を有するセンサープレートで、１８は
センサープレート１７の突起部の近接位置を検出する近
接スイッチである。In FIGS. 1 and 2, reference numeral 13 is a worm gear 1.
The worm wheel meshes with the screw 4 to rotate the screw rod 12 to the left (or right) in the figure.
15 is a worm shaft connected to the worm gear 14, 16
Is a servo motor that moves the screw rod 12 leftward (or rightward) in the drawing via the worm gear 14 and the worm wheel 13 that are connected to the worm shaft 15 as described above. Reference numeral 17 is a sensor plate having a protrusion attached to the shaft of the servomotor 16 as shown in FIG. 3, and reference numeral 18 is a proximity switch for detecting the proximity position of the protrusion of the sensor plate 17.

【００２１】このような実施の形態に係る超音波シール
装置では、回転ドラム２が回転すると、同回転ドラム２
に巻き付けられた積層体１がスキマＳを通過する際に、
超音波シール装置７先端のホーン４から超音波押圧が働
き、積層体１の表層部がシールされ、アイドルロール３
を経て次工程へ送られる。表層部のシールとは、本実施
の形態においては積層体１のシール部分に飾りや模様を
付すために押圧するものである。このためのスキマＳの
調整方法が本発明の特徴とする点で、以下詳細に説明す
る。In the ultrasonic sealing device according to this embodiment, when the rotary drum 2 is rotated, the rotary drum 2 is rotated.
When the laminated body 1 wound around is passing through the gap S,
Ultrasonic pressure is applied from the horn 4 at the tip of the ultrasonic sealing device 7 to seal the surface layer portion of the laminated body 1, and the idle roll 3
And sent to the next step. In the present embodiment, the seal of the surface layer portion is to press the seal portion of the laminated body 1 to give a decoration or a pattern. The method of adjusting the clearance S for this purpose is a feature of the present invention, and will be described in detail below.

【００２２】図２は、ウォームアップギア１４と、ウォ
ームホイール１３と、ネジ棒１２の関係を示しており、
ウォームギア１４の回転によってウォームホイール１３
を介してネジ棒１２先端のメカニカルストッパー１１が
２点鎖線のように移動される。FIG. 2 shows the relationship among the warm-up gear 14, the worm wheel 13, and the screw rod 12,
The rotation of the worm gear 14 causes the worm wheel 13 to rotate.
The mechanical stopper 11 at the tip of the screw rod 12 is moved via the arrow mark as shown by the two-dot chain line.

【００２３】図３は、サーボモータ１６に連結されたウ
ォーム軸１５に取着されたセンサープレート１７が、ち
ょうど近接スイッチ１８の位置にあり初期設定位置とな
っている。サーボモータ１６の回転は図示省略の制御部
によって制御されるが、この位置からサーボモータ１６
が回転を始めると、１回転によってメカニカルストッパ
ー１１が進む移動量が計算されているので、制御部にお
いてサーボモータ１６の回転数及び回転角によって、メ
カニカルストッパー１１の移動量、すなわち、スキマ量
Ｓを調整するようにサーボモータ１６を制御することが
できる。In FIG. 3, the sensor plate 17 attached to the worm shaft 15 connected to the servo motor 16 is at the position of the proximity switch 18 and is in the initial setting position. The rotation of the servo motor 16 is controlled by a controller (not shown).
When the rotation starts, the amount of movement of the mechanical stopper 11 is calculated by one rotation. Therefore, the control unit determines the movement amount of the mechanical stopper 11, that is, the amount S of clearance, by the rotation number and the rotation angle of the servo motor 16. The servomotor 16 can be controlled to adjust.

【００２４】図４は積層体を示す図で、（ａ）図は側面
図、（ｂ）図は平面図である。図５は超音波シール装置
のホーン４と積層体間のスキマ部分を示す説明図、図６
は速度及びスキマＳの関係を示すグラフである。FIG. 4 is a view showing a laminated body, FIG. 4A is a side view, and FIG. 4B is a plan view. FIG. 5 is an explanatory view showing a gap between the horn 4 and the laminated body of the ultrasonic sealing device, and FIG.
Is a graph showing the relationship between speed and gap S.

【００２５】本実施の形態に係る超音波シール装置は、
まず、回転ドラム２の回転数を図示省略の回転数検出器
で検出し、図示しない制御部へ入力し、この回転数より
同回転ドラム２に巻き付けられた積層体１の移送速度を
検出し、この移送速度に対応する最適なスキマＳを設定
する。The ultrasonic sealing device according to this embodiment is
First, the rotation speed of the rotary drum 2 is detected by a rotation speed detector (not shown) and is input to a control unit (not shown), and the transfer speed of the laminated body 1 wound around the rotary drum 2 is detected from this rotation speed, An optimal gap S corresponding to this transfer speed is set.

【００２６】設定されたスキマＳの調整は、制御部から
の信号によりサーボモータ１６を作動させ、ウォーム軸
１５を回転してウォームギア１４及びウォームホイール
１３を介してネジ棒１２先端のメカニカルストッパー１
１が左方向（又は右方向）に調整される。この調整は後
述するように近接スイッチ１８からの信号を制御部に入
力し、サーボモータ６の回転数によってメカニカルスト
ッパー１１の位置を決める。To adjust the set clearance S, the servo motor 16 is operated by a signal from the control unit, the worm shaft 15 is rotated, and the mechanical stopper 1 at the tip of the screw rod 12 is rotated through the worm gear 14 and the worm wheel 13.
1 is adjusted to the left (or right). For this adjustment, as will be described later, a signal from the proximity switch 18 is input to the control unit, and the position of the mechanical stopper 11 is determined by the rotation speed of the servo motor 6.

【００２７】メカニカルストッパー１１の位置が決まる
と、このメカニカルストッパー１１に対向する移動部材
９の先端が、常時、当接されるようにシリンダー１０に
よって図の右方向に押圧されているので、支持フレーム
８に支持された超音波シール装置７の位置が決まり、ホ
ーン４と回転ドラム２間のスキマＳが調整されることに
なる。When the position of the mechanical stopper 11 is determined, the tip of the moving member 9 facing the mechanical stopper 11 is always pressed in the right direction in the figure by the cylinder 10 so that it is always in contact with the supporting member. The position of the ultrasonic sealing device 7 supported by 8 is determined, and the gap S between the horn 4 and the rotary drum 2 is adjusted.

【００２８】スキマＳの調整は、制御部に図６（ａ），
（ｂ）に示す特性を保持させておき、この特性に従っ
て、積層体１の移送速度が目標速度になるまで時々刻々
と連続的に繰り返され、積層体１の移送速度に最適なス
キマＳになるようにメカニカルストッパー１１の位置を
制御する。図６に示す特性は、（ａ）が時間と積層体１
の速度の関係を示し、このような積層体１の速度に対
し、（ｂ）のようにスキマ量を調整する。（ｂ）に示す
スキマ量は移送速度が速くなるにつれてスキマ量を狭く
し、移送速度が一定の場合にはその速度に適した所定の
スキマ量を維持し、移送速度が遅くなるにつれてスキマ
量を広く設定することを示している。The adjustment of the clearance S is performed by the control unit shown in FIG.
The characteristic shown in (b) is held, and in accordance with this characteristic, the transfer speed of the laminated body 1 is continuously repeated every moment until it reaches the target speed, and the optimum clearance S for the transferred speed of the laminated body 1 is obtained. The position of the mechanical stopper 11 is controlled as described above. The characteristics shown in FIG. 6 are as follows: (a) time and laminated body 1
The relationship between the velocities is shown. The skimmer amount is adjusted as shown in FIG. The clearance amount shown in (b) is narrowed as the transfer speed becomes faster, and when the transfer speed is constant, a predetermined clearance amount suitable for the speed is maintained, and as the transfer speed becomes slower, the clearance amount becomes smaller. It indicates that the setting is wide.

【００２９】このスキマＳの調整において、スキマ量Ｓ
と積層体１の厚さとの関係は図５に示すが、図５は、ホ
ーン４先端と回転ドラム２に巻き付けられた積層体１と
のスキマ関係を示したもので、Ｓはホーン４先端と回転
ドラム２外面とのスキマ、Ｓ１は積層体１の厚み、Ｓ２
はホーン４先端と積層体１外面とのスキマである。前述
のように、本発明の実施の形態に係る超音波シール装置
の制御方法においては、このＳが最適になるようにホー
ン４の位置を自動的に設定するものである。In adjusting the clearance S, the clearance S
5 shows the relationship between the laminated body 1 and the thickness of the laminated body 1. FIG. 5 shows a clearance relation between the tip of the horn 4 and the laminated body 1 wound around the rotary drum 2, and S is the tip of the horn 4. Clearance from the outer surface of the rotating drum 2, S1 is the thickness of the laminated body 1, S2
Is a gap between the tip of the horn 4 and the outer surface of the laminated body 1. As described above, in the method of controlling the ultrasonic sealing device according to the embodiment of the present invention, the position of the horn 4 is automatically set so that this S is optimum.

【００３０】図４は、積層体１のシール部分１Ａ及び１
Ｂに矩形状の模様３０，３１が打刻されている様子を示
している。この打刻によって積層体１の表層部が接着シ
ールされるもので、図１の回転ドラム２の表面に矩形状
模様の凸部が設けられており、積層体１がスキマＳを通
過する際に、ホーン４の先端が積層体１に押圧されて出
来る模様で、この部分が接着シールされている。FIG. 4 shows the sealing portions 1A and 1 of the laminate 1.
It is shown that rectangular patterns 30 and 31 are stamped on B. By this stamping, the surface layer portion of the laminated body 1 is adhesively sealed, and a convex portion having a rectangular pattern is provided on the surface of the rotary drum 2 in FIG. 1, and when the laminated body 1 passes through the gap S, The tip of the horn 4 is pressed by the laminated body 1, and this portion is adhesively sealed.

【００３１】図７は本発明の超音波シール装置の制御方
法のフローチャートである。その概要を説明すると、ま
ず、Ｓ１において、回転ドラム１の回転数を検出し、こ
の回転数から積層体の速度を検出する。次に、Ｓ２にお
いて、この検出した積層体１の速度に対応した最適のス
キマ量Ｓを設定する。Ｓ３ではこの設定したスキマ量Ｓ
に応じてサーボモータ１６を駆動し、このスキマ量Ｓと
なるようにメカニカルストッパー１１の位置を移動し、
Ｓ４において積層体がスキマ量Ｓに対応する目標速度に
なったか否かチェックし、目標速度にならなければ、Ｓ
１に戻り、同じステップを繰り返す。目標速度になれ
ば、次のＳ５へ進む。FIG. 7 is a flowchart of the control method of the ultrasonic sealing device of the present invention. To explain its outline, first, in S1, the number of rotations of the rotary drum 1 is detected, and the speed of the laminated body is detected from this number of rotations. Next, in S2, an optimum amount of clearance S corresponding to the detected speed of the laminated body 1 is set. In S3, this set gap S
The servomotor 16 is driven in accordance with the above, and the position of the mechanical stopper 11 is moved so as to obtain the gap amount S,
In S4, it is checked whether or not the laminated body reaches the target speed corresponding to the clearance amount S, and if the target speed is not reached, S
Go back to 1 and repeat the same steps. When the target speed is reached, the process proceeds to the next S5.

【００３２】Ｓ５では定速運転を行い、Ｓ６において、
定速から減速開始か否か調べ、定速であればＳ５で定速
を維持し、減速開始であれば次のＳ７，Ｓ８，Ｓ９で前
述のＳ１，Ｓ２，Ｓ３と同様の作動を行い、Ｓ１０にお
いて減速終了か否かをチェックする。減速が継続してい
ればＳ７へ戻り、再度同じステップを繰り返す。減速が
終了すれば制御を終了する。At S5, constant speed operation is performed, and at S6,
It is checked whether or not the deceleration is started from the constant speed. If the deceleration is constant, the constant speed is maintained in S5, and if the deceleration is started, the same operations as S1, S2 and S3 are performed in the following S7, S8 and S9. In S10, it is checked whether or not the deceleration is completed. If deceleration continues, the process returns to S7 and the same steps are repeated. When the deceleration ends, the control ends.

【００３３】以上の通り本発明の実施の形態において
は、図示省略の制御部において積層体１の移送速度に応
じて、最適なスキマ量Ｓをサーボモータ１６によって制
御しているので、積層体１のシール不良が解消され、積
層体１の接着部の破損が防止される効果がある。As described above, in the embodiment of the present invention, the optimum clearance amount S is controlled by the servomotor 16 in accordance with the transfer speed of the laminated body 1 in the control unit (not shown). There is an effect that the sealing failure of 1 is solved and damage to the adhesive portion of the laminated body 1 is prevented.

【００３４】[0034]

【発明の効果】以上、具体的に説明したように本発明
は、積層体の巻かれている回転ドラムの回転数を検出
し、この回転数から積層体の移送速度を求め、この移送
速度に応じて回転ドラムと超音波押圧ホーンとの間の最
適スキマ量を設定し、このスキマ量になるように超音波
押圧ホーンの位置決めをサーボモータによって制御する
制御方法、更に、超音波押圧ホーンの初期位置を設定す
る位置決め装置を移動させるサーボモータ、ドラム回転
数検出器、サーボモータ回転数検出器及びドラム回転数
検出器とサーボモータ回転数検出器からの信号を入力
し、位置決め装置を移動させるサーボモータを制御する
制御部とを備えた制御装置を特徴とするので次のような
効果を奏する。As described above in detail, the present invention detects the number of revolutions of the rotary drum around which the laminated body is wound, obtains the transfer speed of the laminated body from this number of revolutions, and determines this transfer speed. According to the control method, the optimum amount of clearance between the rotary drum and the ultrasonic pressing horn is set, and the positioning of the ultrasonic pressing horn is controlled by the servomotor so that this amount of clearance is achieved. Servo that moves the positioning device that sets the position. Servo that moves the positioning device by inputting signals from the servo motor, drum rotation speed detector, servo motor rotation speed detector, and drum rotation speed detector and servo motor rotation speed detector. Since the control device is provided with the control unit for controlling the motor, the following effects are achieved.

【００３５】（１）積層体のシール不良が解消されると
共に、積層体の接着部の破損が防止される効果がある。(1) There is an effect that the defective sealing of the laminated body is eliminated and the damage of the adhesive portion of the laminated body is prevented.

【００３６】（２）また、シール不良等の解消により、
製品の歩留りが向上し、高品質の製品を安定的に供給で
きるので、超音波シール装置の生産性を一段と高める効
果を奏する。(2) Also, by eliminating defective seals,
Since the product yield is improved and a high quality product can be stably supplied, the productivity of the ultrasonic sealing device is further enhanced.

【００３７】（３）このような制御装置により、超音波
シール装置の制御が自動化され、超音波押圧ホーンの位
置決めが正確になされるようになり、産業上極めて有益
なものである。(3) With such a control device, the control of the ultrasonic sealing device is automated, and the positioning of the ultrasonic pressing horn can be accurately performed, which is extremely useful in industry.

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

【図１】本発明の実施の一形態に係る超音波シール装置
の側面図である。FIG. 1 is a side view of an ultrasonic sealing device according to an embodiment of the present invention.

【図２】図１におけるＸ−Ｘ矢視図である。FIG. 2 is a view taken along the line XX in FIG.

【図３】図１におけるサーボモータの回転数検出部の詳
細な側面図である。FIG. 3 is a detailed side view of a rotation speed detection unit of the servo motor in FIG.

【図４】本発明の実施の一形態に係る超音波シール装置
に適用される積層体で、（ａ）はその側面図、（ｂ）は
平面図である。FIG. 4 is a laminated body applied to the ultrasonic sealing device according to the embodiment of the present invention, in which (a) is a side view thereof and (b) is a plan view thereof.

【図５】図１及び従来の超音波シール装置におけるホー
ンと積層体間のスキマ部分の説明図である。FIG. 5 is an explanatory diagram of a gap between the horn and the laminated body in FIG. 1 and the conventional ultrasonic sealing device.

【図６】本発明の実施の一形態に係る超音波シール装置
の制御方法における速度とスキマの関係を示す図で、
（ａ）は時間と積層体速度との関係、（ｂ）は時間とス
キマの関係をそれぞれ示す。FIG. 6 is a diagram showing a relationship between speed and clearance in the control method for the ultrasonic sealing device according to the embodiment of the present invention.
(A) shows the relationship between time and laminated body speed, and (b) shows the relationship between time and gap.

【図７】本発明の実施の一形態に係る超音波シール装置
の制御方法のフローチャートである。FIG. 7 is a flowchart of a control method for the ultrasonic sealing device according to the embodiment of the present invention.

【図８】従来の超音波シール装置の側面図である。FIG. 8 is a side view of a conventional ultrasonic sealing device.

【符号の説明】[Explanation of symbols]

１ 積層体 ２ 回転ドラム ４ ホーン ５ ソリッドブースター ６ コンバータ ８ 支持フレーム ９ 移動部材 １０ シリンダー １１ メカニカルストッパー １２ ネジ棒 １３ ウォームホイール １４ ウォームギア １５ ウォーム軸 １６ サーボモータ １７ センサプレート １８ 近接センサー 1 Laminate 2 Rotating Drum 4 Horn 5 Solid Booster 6 Converter 8 Support Frame 9 Moving Member 10 Cylinder 11 Mechanical Stopper 12 Screw Rod 13 Worm Wheel 14 Worm Gear 15 Worm Shaft 16 Servo Motor 17 Sensor Plate 18 Proximity Sensor

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 回転ドラムに巻き付けられて送られる積
層体の表層部を超音波押圧ホーンで押圧し、同表層部を
接着する超音波シール装置の制御方法であって、前記回
転ドラムの回転数を検出し；同回転数から前記積層体の
移送速度を検出し；同移送速度に応じて前記回転ドラム
と前記超音波押圧ホーン先端部との間の最適スキマ量を
設定し；同最適スキマ量に対応する前記超音波押圧ホー
ンの位置決めをサーボモータによって制御することを特
徴とする超音波シール装置の制御方法。1. A method for controlling an ultrasonic sealing device, comprising: pressing a surface layer portion of a laminate wound around a rotary drum and sending the laminated body with an ultrasonic pressing horn, and adhering the surface layer portion, wherein the number of rotations of the rotating drum. Detecting the transfer speed of the laminated body from the same number of rotations; setting the optimum amount of clearance between the rotary drum and the tip of the ultrasonic pressing horn according to the same transfer speed; A method of controlling an ultrasonic sealing device, characterized in that the positioning of the ultrasonic pressing horn corresponding to is controlled by a servomotor. 【請求項２】 回転ドラムに巻き付けられて送られる積
層体の表層部を押圧して接着する超音波押圧ホーンと、
同超音波押圧ホーンの先端部と前記回転ドラムとの初期
スキマ量を設定する位置決め装置とからなり、同位置決
め装置を移動して前記スキマ量を制御する超音波シール
装置の制御装置であって、前記位置決め装置を移動させ
るサーボモータと；前記回転ドラムの回転数を検出する
ドラム回転数検出器と；前記サーボモータの回転数を検
出するサーボモータ回転数検出器と；前記ドラム回転数
検出器からの信号を入力し、前記回転ドラムの回転数か
ら前記積層体の移送速度を算出し、同移送速度によって
前記回転ドラムと前記超音波押圧ホーン先端部との最適
スキマ量を設定すると共に、前記サーボモータ回転数検
出器の信号を参照して前記位置決め装置が最適スキマ量
となるように前記サーボモータを制御する制御部とを具
備してなることを特徴とする超音波シール装置の制御装
置。2. An ultrasonic pressing horn for pressing and adhering a surface layer portion of a laminate wound around a rotary drum and sent,
A control device for an ultrasonic sealing device, comprising a positioning device for setting an initial clearance amount between the tip of the ultrasonic pressing horn and the rotary drum, and moving the positioning device to control the clearance amount, A servo motor for moving the positioning device; a drum rotation speed detector for detecting the rotation speed of the rotary drum; a servo motor rotation speed detector for detecting the rotation speed of the servo motor; and a drum rotation speed detector. Signal is input, the transfer speed of the laminated body is calculated from the rotation speed of the rotary drum, and the optimum clearance between the rotary drum and the tip of the ultrasonic pressing horn is set by the transfer speed, and the servo A controller for controlling the servo motor so that the positioning device has an optimum clearance amount by referring to a signal from the motor rotation speed detector. Control device for ultrasonic sealing apparatus according to symptoms.
JP21169295A 1995-08-21 1995-08-21 Controlling method for ultrasonic sealing device and apparatus therefor Withdrawn JPH0957853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21169295A JPH0957853A (en) 1995-08-21 1995-08-21 Controlling method for ultrasonic sealing device and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21169295A JPH0957853A (en) 1995-08-21 1995-08-21 Controlling method for ultrasonic sealing device and apparatus therefor

Publications (1)

Publication Number Publication Date
JPH0957853A true JPH0957853A (en) 1997-03-04

Family

ID=16610013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21169295A Withdrawn JPH0957853A (en) 1995-08-21 1995-08-21 Controlling method for ultrasonic sealing device and apparatus therefor

Country Status (1)

Country Link
JP (1) JPH0957853A (en)

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Publication number Priority date Publication date Assignee Title
JP2001233309A (en) * 2000-02-23 2001-08-28 Shikoku Kakoki Co Ltd Ultrasonic sealing apparatus
JP2005205026A (en) * 2004-01-23 2005-08-04 Uni Charm Corp Processing apparatus
WO2006074105A1 (en) * 2005-01-03 2006-07-13 3M Innovative Properties Company Gap adjustment for an ultrasonic welding system
US7769551B2 (en) 2005-01-03 2010-08-03 3M Innovative Properties Company Method and system for determining a gap between a vibrational body and fixed point
US7775413B2 (en) 2005-01-03 2010-08-17 3M Innovative Properties Company Cantilevered bar gap adjustment for an ultrasonic welding system
US7828192B2 (en) 2005-01-03 2010-11-09 3M Innovative Properties Company Amplitude adjustment of an ultrasonic horn
EP1561567A3 (en) * 2004-02-09 2012-03-07 Wilhelm Hollinger Maschinenbau GmbH & Co. KG Apparatus and process for manufacturing a frame part by welding plastic profiles
WO2013027390A1 (en) * 2011-08-24 2013-02-28 Unicharm Corporation Ultrasonic sealing apparatus and ultrasonic sealing method
JP2014028492A (en) * 2012-07-31 2014-02-13 Daio Paper Corp Supersonic seal device, supersonic seal method, and clearance adjustment method in supersonic seal
WO2014097634A1 (en) * 2012-12-21 2014-06-26 株式会社瑞光 Method for producing disposable worn article and adhesion device used in same
KR101414894B1 (en) * 2012-11-06 2014-07-03 박명근 Ultrasonic welder having auto-trigger sensor
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001233309A (en) * 2000-02-23 2001-08-28 Shikoku Kakoki Co Ltd Ultrasonic sealing apparatus
JP2005205026A (en) * 2004-01-23 2005-08-04 Uni Charm Corp Processing apparatus
EP1561567A3 (en) * 2004-02-09 2012-03-07 Wilhelm Hollinger Maschinenbau GmbH & Co. KG Apparatus and process for manufacturing a frame part by welding plastic profiles
US7775413B2 (en) 2005-01-03 2010-08-17 3M Innovative Properties Company Cantilevered bar gap adjustment for an ultrasonic welding system
US7769551B2 (en) 2005-01-03 2010-08-03 3M Innovative Properties Company Method and system for determining a gap between a vibrational body and fixed point
US7828192B2 (en) 2005-01-03 2010-11-09 3M Innovative Properties Company Amplitude adjustment of an ultrasonic horn
US7983857B2 (en) 2005-01-03 2011-07-19 3M Innovative Properties Company Method and system for determining a gap between a vibrational body and fixed point
JP4880617B2 (en) * 2005-01-03 2012-02-22 スリーエム イノベイティブ プロパティズ カンパニー Gap adjustment of ultrasonic welding system
WO2006074105A1 (en) * 2005-01-03 2006-07-13 3M Innovative Properties Company Gap adjustment for an ultrasonic welding system
WO2013027390A1 (en) * 2011-08-24 2013-02-28 Unicharm Corporation Ultrasonic sealing apparatus and ultrasonic sealing method
JP2014028492A (en) * 2012-07-31 2014-02-13 Daio Paper Corp Supersonic seal device, supersonic seal method, and clearance adjustment method in supersonic seal
KR101414894B1 (en) * 2012-11-06 2014-07-03 박명근 Ultrasonic welder having auto-trigger sensor
WO2014097634A1 (en) * 2012-12-21 2014-06-26 株式会社瑞光 Method for producing disposable worn article and adhesion device used in same
JPWO2014097634A1 (en) * 2012-12-21 2017-01-12 株式会社瑞光 Disposable wearing article manufacturing method and welding apparatus used therefor
US9855172B2 (en) 2012-12-21 2018-01-02 Zuiko Corporation Method for producing disposable worn article and welding device used in same
WO2019145482A1 (en) * 2018-01-29 2019-08-01 Robert Bosch Gmbh Ultrasonic welding method
JP2021512800A (en) * 2018-01-29 2021-05-20 株式会社Ｇｓユアサ Ultrasonic welding method

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