JP2004276255A - Ultrasonic welding device - Google Patents

Ultrasonic welding device Download PDF

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Publication number
JP2004276255A
JP2004276255A JP2003066808A JP2003066808A JP2004276255A JP 2004276255 A JP2004276255 A JP 2004276255A JP 2003066808 A JP2003066808 A JP 2003066808A JP 2003066808 A JP2003066808 A JP 2003066808A JP 2004276255 A JP2004276255 A JP 2004276255A
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JP
Japan
Prior art keywords
horn
air cylinder
servo motor
ultrasonic welding
workpiece
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.)
Abandoned
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JP2003066808A
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Japanese (ja)
Inventor
Hiroshi Soda
浩志 左右田
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.)
Fujifilm Holdings Corp
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Fuji Photo Film Co Ltd
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Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP2003066808A priority Critical patent/JP2004276255A/en
Publication of JP2004276255A publication Critical patent/JP2004276255A/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools 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
    • B29C66/92—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
    • B29C66/9241—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 pressure, the force or the mechanical power

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic welding device capable of welding a thin tape or the like with stable quality. <P>SOLUTION: In the ultrasonic welding device for applying ultrasonic vibration to a work W by a horn 21 while adding load thereto to weld the work W, the body 23A of an air cylinder 23 is mounted on a lift stand 25 of which the lift position is controlled by driving a servo motor 22 and the horn 21 is attached to the extensible rod 23B of the air cylinder 23. The lift position of the horn 21 is controlled by the servo motor 22 and the load applied to the work W from the horn 21 is controlled by the air cylinder 23. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、磁気テープカートリッジのテープ繰り出し端に設けられるリーダテープ等のようないわゆる薄物のテープ類を溶着するのに適した超音波溶着装置に関する。
【０００２】
【従来の技術】
従来の超音波溶着装置として、エアシリンダでホーンを昇降させる形式のものが知られている。このエアシリンダ式の超音波溶着装置は、図２に示すように、支持フレーム１に下向きに装備したエアシリンダ２のロッド３の先端にホーン４を取り付け、ロッド３を伸縮させることでホーン４を昇降させ、エアシリンダ２によりホーン４からワークＷに荷重を加えながら超音波振動を付与してワークＷを溶着するものである。
【０００３】
この種のエアシリンダ式の超音波溶着装置を用いた薄物のテープ類の溶着の安定条件としては、ホーンの速度が２０〜５０ｍｍ／ｓであるが、エアシリンダ式の場合、所定位置からの動作ストロークが長く処理時間が多く必要となってしまう。特にエアシリンダの下降動作の制御は、エアシリンダ動作が不安定、ハンドリングとの干渉、およびメンテナンス性の悪化等の問題があり困難である。
【０００４】
また、この種のエアシリンダ式の超音波溶着装置は、エアシリンダ２を任意のストロークで停止させることが困難であるため、例えば、ワークＷに接触する直前の位置（溶着直前位置）でホーン４の昇降を停止させ、その位置から徐々に荷重や速度を制御しながら溶着を行うなどといった微妙な操作も難しかった。
【０００５】
そこで、それに代わる超音波溶着装置として、サーボモータでホーンを昇降させる形式のものが知られている（例えば、特許文献１参照）。図３はその一例を示すものである。この図に示す超音波溶着装置は、支持フレーム１１に上下スライド自在に昇降フレーム１２を装備し、支持フレーム１１の上部に設置したサーボモータ１３を回転させることで、ボールねじ１４Ａ及びボールねじナット１４Ｂよりなるボールねじ機構１４を介して、ホーン１５を装備した昇降フレーム１２を昇降させるようになっている。
【０００６】
このサーボモータ式の超音波溶着装置によれば、サーボモータ１３を駆動することにより、ホーン１５の昇降位置を正確に制御し、ホーン１５の下降速度を高速化させることが可能である。
【０００７】
【特許文献１】
特開２００１−７１３８３号公報（図１）
【０００８】
【発明が解決しようとする課題】
ところで、薄物テープの重ね合わせ部分を超音波溶着するような場合は、溶着品質を保つ上で、ホーンの下降速度（溶着速度）とホーンからワークに加える荷重とを精度良くコントロールする必要がある。特に品質を良好に保つためには、低荷重でのコントロールが要求される。
【０００９】
この点、前述のサーボモータ式の超音波溶着装置では、サーボモータによるホーンの昇降位置制御だけで、ホーンの下降速度とホーンからワークに加える荷重との両方をコントロールすることになるため、特に低荷重でのコントロール性能が悪く、前述の薄物テープ等の溶着を良好な品質で行うことは困難であった。
【００１０】
本発明は、上記事情を考慮し、薄物テープ等の溶着を高速でかつ安定した品質で行うことのできる超音波溶着装置を提供することを目的とする。
【００１１】
【課題を解決するための手段】
請求項１の超音波溶着装置は、ワークに超音波振動を与えるホーンと、前記ホーンを保持しつつ、空気圧により前記ホーンを上下動させるエアシリンダと、前記エアシリンダを保持する昇降台と、前記昇降台を上下動させるサーボモータと、を備え、前記ホーンの昇降位置を前記サーボモータで制御し、前記ホーンからワークに加える荷重を前記エアシリンダで制御することを特徴とする。
【００１２】
この超音波溶着装置で溶着を行う場合、溶着する直前まで（つまり、ワークにホーンが接触するまで）は、サーボモータの制御によりホーンを高速で下降させる。次いで、溶着時は、エアシリンダの制御により適切な荷重をホーンからワークに加えながら、サーボモータにより必要な速度でホーンを下降させつつ、ホーンによりワークに超音波振動を付与して溶着を行う。この場合、ホーンの下降速度はサーボモータで精度良く制御することができ、ホーンからワークに加える荷重はエアシリンダにより精度良く制御することができるので、特に低荷重での微妙な速度制御が可能であり、薄物テープ類の溶着を高速でかつ安定した品質で行うことが可能となる。
【００１３】
【発明の実施の形態】
以下、本発明の実施形態を図面に基づいて説明する。
【００１４】
図１は本発明の実施形態の超音波溶着装置の側面図である。本実施形態の超音波溶着装置２０は、ホーン２１と、サーボモータ２２と、エアシリンダ２３と、支持フレーム２４と、昇降台２５と、ボールねじ２６Ａおよびボールネジナット２６Ｂから構成されるボールネジ機構２６とを有して構成されている。
【００１５】
ホーン２１は、対向して配置される薄物テープ類等のワークＷに荷重を加えながら超音波振動を付与することにより、ワークＷ（具体的には、テープ同士）を溶着するものである。このホーン２１は、エアシリンダ２３によって保持されている。
【００１６】
エアシリンダ２３は、本体部２３Ａと本体部２３Ａの下面からから突出して設けられ、先端にホーン２１を保持するロッド２３Ｂとを有している。また、本体部２３Ａには、スライド部２３Ｃが設けられており、支持フレーム２４に設けられたガイド部材２４Ａに沿って、上下方向に摺動可能である。また、本体部２３Ａは、図示せぬ外部の空気供給源から空気を注入可能に構成されており、注入された空気の圧力をロッド２３Ｂに与えることにより、ロッド２３Ｂが上下に伸縮運動可能なように構成されている。エアシリンダ２３の本体部２３Ａの作動によりロッド２３Ｂが上下に移動することで、ワークＷとの相対距離が変化する。
【００１７】
またエアシリンダ２３には、昇降台２５が取り付けられている。この昇降台２５は、支持フレーム２４の上部に設置されたサーボモータ２２によって回転駆動されるボールねじ２６Ａによって摺動可能に支持されたボールねじナット２６Ｂである。サーボモータ２２の駆動により、ボールねじ２６Ａが正転または逆転方向に駆動されると、昇降台２５（ボールねじナット２６Ｂ）は、エアシリンダ２３とともにボールねじ２６Ａの駆動方向に応じた方向に昇降する。したがって、ホーン２１は、ボールねじ機構２６の駆動によってエアシリンダ２３全体が上下に摺動することによっても、上下に昇降する。上下方向へのホーン２１の駆動速度は、ボールねじ機構２６の駆動によるほうが、エアシリンダ２３の駆動によるものよりも高速である。
【００１８】
すなわち、本実施形態のホーン２１は、サーボモータ２２の駆動と、エアシリンダ２３の駆動の２種類の駆動により、上下に摺動する。実際の溶着においては、ホーン２１の昇降位置についてはサーボモータ２２によって駆動制御され、ホーン２１からワークＷに加える荷重についてはエアシリンダ２３によって駆動制御されるように構成されている。
【００１９】
この超音波溶着装置２０によって薄物テープ等のワークＷの溶着を行う場合、まず、溶着する直前まで（つまりワークＷに接触するまで）は、サーボモータ２２の制御によりホーン２１を高速で下降させる。次に実際の溶着時は、エアシリンダ２３の制御により適切な荷重をホーン２１からワークＷに加えながら、サーボモータ２２により必要な速度でホーン２１を下降させつつ、ホーン２１によりワークＷに超音波振動を付与して溶着を行う。
【００２０】
したがって、本実施形態の超音波溶着装置２０は、生産性向上のために高速移動が要求される領域では、サーボモータ２２を駆動することによって、高速でホーン２１を下降させ、そして下降中での微妙な加重制御が要求される領域では、エアシリンダ２３を用いてホーン２１を駆動制御を行う。したがって、本実施形態の超音波溶着装置２０によれば、特に低荷重での微妙な速度制御が要求される薄物テープ等のワークについても、問題なく溶着を行うことが可能である。
【００２１】
実際に、磁気テープカートリッジのテープ繰り出し端に設けられるリーダテープ等の薄物のテープ類の溶着に、上記超音波溶着装置２０を適用したところ、ラインタクト６秒のラインにおいて、１．５秒の処理時間短縮が図られ、３０％の処理能力向上が実現された。また、この超音波溶着装置２０においては、従来の超音波溶着装置と製品品質は同等であった。すなわち、本実施形態の超音波溶着装置２０を適用することにより、高速でかつ安定した品質で溶着を行うことが可能であることがわかった。
【００２２】
なお、本実施形態では、ホーン２１を保持しつつ空気圧によりホーン２１を上下動させるものとしてエアシリンダを用いたが、これに限られるものではなく、同様の作用効果を奏する機械式ばね等を用いてもよい。
また、本実施形態では、昇降台２５を上下動させるものとしてサーボモータ２２を用いたが、これに限られるものではなく、同様の作用効果を奏するラックピニオン、カム、高速型エアシリンダを用いるようにしてもよい。
【００２３】
【発明の効果】
以上説明したように、請求項１の発明によれば、速度制御と荷重制御をそれぞれ異なるアクチュエータ（サーボモータとエアシリンダ）によって独立して行うことができるので、低荷重での微妙な速度制御が要求される薄物テープ等のワークについても、高速でかつ安定した品質で溶着を行うことができる。
【図面の簡単な説明】
【図１】本発明の実施形態の超音波溶着の構成を示す側面図である。
【図２】従来のエアシリンダ式の超音波溶着装置の構成を示す側面図である。
【図３】従来のサーボモータ式の超音波溶着装置の構成を示す側面図である。
【符号の説明】
２０ 超音波溶着装置
２１ ホーン
２２ サーボモータ
２３ エアシリンダ
２３Ａ 本体
２３Ｂ ロッド
２５ 昇降台
２６ ボールねじ機構[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ultrasonic welding apparatus suitable for welding so-called thin tapes such as a leader tape provided at a tape feeding end of a magnetic tape cartridge.
[0002]
[Prior art]
As a conventional ultrasonic welding apparatus, a type of raising and lowering a horn with an air cylinder is known. As shown in FIG. 2, this air cylinder type ultrasonic welding apparatus attaches a horn 4 to the tip of a rod 3 of an air cylinder 2 mounted downward on a support frame 1, and expands and contracts the horn 4 by expanding and contracting the rod 3. The workpiece W is welded by applying ultrasonic vibration while applying a load from the horn 4 to the workpiece W by the air cylinder 2.
[0003]
As a stable condition for welding thin tapes using this type of air cylinder type ultrasonic welding apparatus, the speed of the horn is 20 to 50 mm / s. Long stroke requires a lot of processing time. In particular, the control of the lowering operation of the air cylinder is difficult due to problems such as unstable air cylinder operation, interference with handling, and deterioration of maintainability.
[0004]
In addition, since this type of air cylinder type ultrasonic welding apparatus is difficult to stop the air cylinder 2 at an arbitrary stroke, for example, the horn 4 at a position immediately before contacting the workpiece W (position just before welding). It was difficult to perform subtle operations such as stopping the lifting and lowering and performing welding while gradually controlling the load and speed from that position.
[0005]
Therefore, as an alternative ultrasonic welding apparatus, a type in which a horn is moved up and down by a servo motor is known (for example, see Patent Document 1). FIG. 3 shows an example. The ultrasonic welding apparatus shown in this figure is equipped with a lifting frame 12 that is slidable up and down on a support frame 11, and by rotating a servo motor 13 installed on the top of the support frame 11, a ball screw 14A and a ball screw nut 14B. The elevating frame 12 equipped with the horn 15 is raised and lowered via a ball screw mechanism 14 composed of the above.
[0006]
According to this servo motor type ultrasonic welding apparatus, by driving the servo motor 13, the elevation position of the horn 15 can be accurately controlled, and the descending speed of the horn 15 can be increased.
[0007]
[Patent Document 1]
JP 2001-71383 A (FIG. 1)
[0008]
[Problems to be solved by the invention]
By the way, when ultrasonically welding the overlapping portions of thin tapes, it is necessary to accurately control the lowering speed (welding speed) of the horn and the load applied from the horn to the workpiece in order to maintain the welding quality. In particular, in order to keep the quality good, control at a low load is required.
[0009]
In this respect, in the servo motor type ultrasonic welding apparatus described above, both the lowering speed of the horn and the load applied to the workpiece from the horn are controlled only by controlling the raising / lowering position of the horn by the servo motor. Control performance under load was poor, and it was difficult to weld the above-described thin tape or the like with good quality.
[0010]
In consideration of the above circumstances, an object of the present invention is to provide an ultrasonic welding apparatus capable of performing welding of a thin tape or the like at high speed and with stable quality.
[0011]
[Means for Solving the Problems]
The ultrasonic welding apparatus according to claim 1 is a horn that applies ultrasonic vibration to a workpiece, an air cylinder that moves the horn up and down by air pressure while holding the horn, a lifting platform that holds the air cylinder, And a servo motor that moves the elevator up and down, the lift position of the horn is controlled by the servo motor, and the load applied to the workpiece from the horn is controlled by the air cylinder.
[0012]
When welding is performed with this ultrasonic welding apparatus, the horn is lowered at high speed by the control of the servo motor until immediately before welding (that is, until the horn contacts the workpiece). Next, at the time of welding, while applying an appropriate load from the horn to the work by controlling the air cylinder, the horn is lowered at a necessary speed by a servo motor, and ultrasonic work is applied to the work by the horn to perform welding. In this case, the lowering speed of the horn can be accurately controlled by a servo motor, and the load applied to the workpiece from the horn can be controlled with high accuracy by an air cylinder, so that delicate speed control can be performed particularly at low loads. Yes, thin tapes can be welded at high speed and with stable quality.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is a side view of an ultrasonic welding apparatus according to an embodiment of the present invention. The ultrasonic welding apparatus 20 according to the present embodiment includes a horn 21, a servo motor 22, an air cylinder 23, a support frame 24, a lifting platform 25, a ball screw mechanism 26 including a ball screw 26A and a ball screw nut 26B. It is comprised.
[0015]
The horn 21 welds the workpieces W (specifically, the tapes) by applying ultrasonic vibration while applying a load to the workpieces W such as thin tapes arranged to face each other. The horn 21 is held by an air cylinder 23.
[0016]
The air cylinder 23 includes a main body 23A and a rod 23B that protrudes from the lower surface of the main body 23A and holds the horn 21 at the tip. Further, the main body portion 23A is provided with a slide portion 23C, and is slidable in the vertical direction along a guide member 24A provided on the support frame 24. Further, the main body 23A is configured to be able to inject air from an external air supply source (not shown), and by applying the pressure of the injected air to the rod 23B, the rod 23B can be expanded and contracted vertically. It is configured. As the rod 23B moves up and down by the operation of the main body 23A of the air cylinder 23, the relative distance to the workpiece W changes.
[0017]
The air cylinder 23 is attached with a lifting platform 25. The lifting platform 25 is a ball screw nut 26 </ b> B that is slidably supported by a ball screw 26 </ b> A that is rotationally driven by a servo motor 22 installed on the upper portion of the support frame 24. When the ball screw 26 </ b> A is driven in the forward or reverse direction by driving the servo motor 22, the lifting platform 25 (ball screw nut 26 </ b> B) moves up and down in the direction corresponding to the driving direction of the ball screw 26 </ b> A together with the air cylinder 23. . Accordingly, the horn 21 moves up and down also when the entire air cylinder 23 slides up and down by driving the ball screw mechanism 26. The driving speed of the horn 21 in the vertical direction is higher when driven by the ball screw mechanism 26 than when driven by the air cylinder 23.
[0018]
That is, the horn 21 of this embodiment slides up and down by two types of driving, that is, driving of the servo motor 22 and driving of the air cylinder 23. In actual welding, the elevation position of the horn 21 is driven and controlled by the servo motor 22, and the load applied from the horn 21 to the workpiece W is driven and controlled by the air cylinder 23.
[0019]
When the workpiece W such as a thin tape is welded by the ultrasonic welding device 20, first, the horn 21 is lowered at high speed by the control of the servo motor 22 until just before welding (that is, until the workpiece W comes into contact). Next, at the time of actual welding, while applying an appropriate load from the horn 21 to the workpiece W by controlling the air cylinder 23, the horn 21 is lowered at a necessary speed by the servo motor 22 and ultrasonic waves are applied to the workpiece W by the horn 21. Welding is performed by applying vibration.
[0020]
Therefore, the ultrasonic welding apparatus 20 of the present embodiment lowers the horn 21 at a high speed by driving the servo motor 22 in a region where high-speed movement is required to improve productivity, In an area where delicate load control is required, the air cylinder 23 is used to drive the horn 21. Therefore, according to the ultrasonic welding apparatus 20 of the present embodiment, it is possible to perform welding without problems even on a workpiece such as a thin tape that requires delicate speed control particularly at a low load.
[0021]
Actually, when the ultrasonic welding apparatus 20 is applied to the welding of thin tapes such as a leader tape provided at the tape feeding end of the magnetic tape cartridge, a 1.5-second processing is performed in a line with a line tact of 6 seconds. The time was shortened and a 30% improvement in processing capacity was realized. Moreover, in this ultrasonic welding apparatus 20, the product quality was equivalent to the conventional ultrasonic welding apparatus. That is, it was found that by applying the ultrasonic welding apparatus 20 of the present embodiment, it is possible to perform welding at high speed and with stable quality.
[0022]
In the present embodiment, the air cylinder is used to move the horn 21 up and down by air pressure while holding the horn 21. However, the present embodiment is not limited to this, and a mechanical spring or the like having the same effect is used. May be.
In this embodiment, the servo motor 22 is used to move the elevator 25 up and down. However, the present invention is not limited to this, and a rack and pinion, a cam, and a high-speed air cylinder that exhibit the same effect are used. It may be.
[0023]
【The invention's effect】
As described above, according to the first aspect of the invention, speed control and load control can be independently performed by different actuators (servo motor and air cylinder), so that delicate speed control with low load can be achieved. The required work such as thin tape can be welded at high speed and with stable quality.
[Brief description of the drawings]
FIG. 1 is a side view showing a configuration of ultrasonic welding according to an embodiment of the present invention.
FIG. 2 is a side view showing a configuration of a conventional air cylinder type ultrasonic welding apparatus.
FIG. 3 is a side view showing a configuration of a conventional servo motor type ultrasonic welding apparatus.
[Explanation of symbols]
20 Ultrasonic Welding Device 21 Horn 22 Servo Motor 23 Air Cylinder 23A Main Body 23B Rod 25 Lifting Table 26 Ball Screw Mechanism

Claims (1)

ワークに超音波振動を与えるホーンと、
前記ホーンを保持しつつ、空気圧により前記ホーンを上下動させるエアシリンダと、
前記エアシリンダを保持する昇降台と、
前記昇降台を上下動させるサーボモータと、を備え、
前記ホーンの昇降位置を前記サーボモータで制御し、前記ホーンからワークに加える荷重を前記エアシリンダで制御することを特徴とする超音波溶着装置。A horn that gives ultrasonic vibration to the workpiece,
An air cylinder that moves the horn up and down by air pressure while holding the horn;
A lifting platform for holding the air cylinder;
A servo motor that moves the elevator up and down,
The ultrasonic welding apparatus characterized in that the lift position of the horn is controlled by the servo motor, and the load applied from the horn to the workpiece is controlled by the air cylinder.
JP2003066808A 2003-03-12 2003-03-12 Ultrasonic welding device Abandoned JP2004276255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003066808A JP2004276255A (en) 2003-03-12 2003-03-12 Ultrasonic welding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003066808A JP2004276255A (en) 2003-03-12 2003-03-12 Ultrasonic welding device

Publications (1)

Publication Number Publication Date
JP2004276255A true JP2004276255A (en) 2004-10-07

Family

ID=33284601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003066808A Abandoned JP2004276255A (en) 2003-03-12 2003-03-12 Ultrasonic welding device

Country Status (1)

Country Link
JP (1) JP2004276255A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103317722A (en) * 2013-06-28 2013-09-25 苏州凯尔博精密机械有限公司 Ultrasonic biological box welding machine
CN104369364A (en) * 2013-08-15 2015-02-25 海洋王（东莞）照明科技有限公司 Light fixture hot welding machine
CN104369363A (en) * 2013-08-15 2015-02-25 海洋王（东莞）照明科技有限公司 Light apparatus welding heat welder and stroke adjustment fixation structure thereof
CN107234331A (en) * 2017-07-26 2017-10-10 嘉兴日昌汽车配件有限公司 A kind of welding mechanism of ultrasonic wave automatic welding device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103317722A (en) * 2013-06-28 2013-09-25 苏州凯尔博精密机械有限公司 Ultrasonic biological box welding machine
CN104369364A (en) * 2013-08-15 2015-02-25 海洋王（东莞）照明科技有限公司 Light fixture hot welding machine
CN104369363A (en) * 2013-08-15 2015-02-25 海洋王（东莞）照明科技有限公司 Light apparatus welding heat welder and stroke adjustment fixation structure thereof
CN107234331A (en) * 2017-07-26 2017-10-10 嘉兴日昌汽车配件有限公司 A kind of welding mechanism of ultrasonic wave automatic welding device
CN107234331B (en) * 2017-07-26 2022-09-20 嘉兴日昌汽车配件股份有限公司 Welding mechanism of ultrasonic automatic welding equipment

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