DE10331064A1 - Material strip processing equipment has a sonic horn which meets a stop whose stop face position can be varied to create different processing gaps - Google Patents
Material strip processing equipment has a sonic horn which meets a stop whose stop face position can be varied to create different processing gaps Download PDFInfo
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- DE10331064A1 DE10331064A1 DE2003131064 DE10331064A DE10331064A1 DE 10331064 A1 DE10331064 A1 DE 10331064A1 DE 2003131064 DE2003131064 DE 2003131064 DE 10331064 A DE10331064 A DE 10331064A DE 10331064 A1 DE10331064 A1 DE 10331064A1
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- Prior art keywords
- stop
- sonotrode
- force
- leaf spring
- gap width
- Prior art date
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Classifications
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
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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
- 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
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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
- 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
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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
- 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
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
- B29C66/81611—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material by resilient material
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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
- 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
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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
- 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
- B29C66/922—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 measuring the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9231—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 measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the displacement of the joining tools
- B29C66/92311—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 measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the displacement of the joining tools with special measurement means or methods
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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
- 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
-
- 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
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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
- 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
-
- 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
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Vibration Prevention Devices (AREA)
- Machine Tool Units (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Bearbeiten einer Materialbahn mit einer eine Sonotrode aufweisenden Ultraschalleinheit.The The invention relates to a device for processing a material web with a sonotrode having ultrasonic unit.
Aus
Aus der Praxis ist bekannt, das Gehäuse, in dem die Sonotrode gelagert ist, an einem Maschinengrundkörper verschieblich auf einem Schlitten zu lagern. Eine oberhalb der Sonotrode an dem Gehäuse angreifende Belastungsvorrichtung ist dazu ausgebildet, das Gehäuse mit der Sonotrode entlang der Lagerung senkrecht auf und ab zu bewegen. Hierzu ist die Belastungsvorrichtung als Kolben-Zylindereinheit oder als Kniegelenk mit einem hieran angreifenden Längsversteller ausgebildet. Alternativ ist es aus der Praxis bekannt, anstelle des Schlittens Hebel vorzusehen, die sowohl an dem Maschinengrundkörper als auch an dem Gehäuse ein Gelenk aufweisen. Dabei sind die Hebel – meist zwei – mit Abstand in Längsrichtung des Gehäuses angeordnet. Sie bilden mit dem Gehäuse und dem Maschinengrundkörper ein Parallelprogramm, das die Bewegung des Gehäuses relativ zum Maschinengrundkörper bestimmt.Out practice is known, the housing, in which the sonotrode is mounted, displaceable on a machine base body to store on a sledge. One above the sonotrode at the Housing attacking Loading device is adapted to the housing with the sonotrode along the storage vertically up and down to move. For this purpose, the loading device as a piston-cylinder unit or designed as a knee joint with a longitudinal adjuster acting thereon. Alternatively, it is known in practice, instead of the carriage Provide lever, both on the machine body as also on the housing have a joint. The levers - usually two - are at a distance longitudinal of the housing arranged. They form with the housing and the machine body Parallel program that determines the movement of the housing relative to the machine body.
Aus
der nichtveröffentlichten
Zwar ist es mit dieser Vorrichtung möglich, die Anstellkraft der Sonotrode gegen das Gegenwerkzeug – regelmäßig eine rotierende Walze – feinfühlig und reibungsfrei einzustellen, nachteilig ist jedoch, daß die Spaltbreite zwischen Sonotrode und Gegenwerkzeug nicht unabhängig von der Anstellkraft einstellbar ist.Though is it possible with this device that Clamping force of the sonotrode against the counter tool - regularly one rotating roller - sensitive and to adjust friction, disadvantageous, however, is that the gap width between sonotrode and counter tool not adjustable independently of the contact force is.
Dies ist insbesondere dann unerwünscht, wenn es sich bei der Walze um eine Gravurwalze handelt, die ein nicht homogenes Relief auf ihrem den Arbeitsumfang bildenden Mantel aufweist. Denn bei derartigen Gravurwalzen laufen pro Umdrehung unterschiedliche Pressflächen ein, so daß die Kraft, mit der die Sonotrode gegen das Gegenwerkzeug und somit auf die durchlaufende Bahn wirkt, schwankt. Eine pneumatische oder hydraulische Kraftanstellung stößt hierbei an ihre Grenzen, da die erforderlichen Kraftschwankungen hierfür nicht eingesteuert werden können.This is particularly undesirable if it is the roller to a gravure roller, the one not has homogeneous relief on her coat forming the scope of work. Because in such gravure rollers run different per revolution pressing surfaces one, so that the Force, with which the sonotrode against the counter tool and thus on the continuous web acts, fluctuates. A pneumatic or hydraulic power adjustment pushes here to their limits, since the required power fluctuations are not can be controlled.
Darüber hinaus muß bei zwar homogenen, jedoch sehr kleinen Pressflächen die Kraftanstellung sehr feinfühlig arbeiten. Die Schwingungsausbildung muß wirksam verhindert werden. Auch läßt sich die Spaltenbreite nicht über die Sonotrodenkraft einstellen, wenn die Gravurpunkte der Walze soweit auseinanderliegen, daß die Sonotrode zwischen den Relieferhebungen bis auf den Walzenmantel gedrückt wird.Furthermore must at Although homogeneous, but very small pressing surfaces the power position very sensitive work. The vibration training must be effectively prevented. Also can be the column width is not over Adjust the sonotrode force when the engraving points of the roller far apart that the Sonotrode between the relief elevations down to the roll mantle is pressed.
Schließlich kann auch dann, wenn die Vorrichtung zum Schneiden verwendet wird, nicht mit einer konstanten Anstellkraft gearbeitet werden.Finally, can even if the device is used for cutting, not be worked with a constant contact force.
Der Erfindung liegt daher die Aufgabe zugrunde, eine gattungsgemäße Vorrichtung zum Bearbeiten einer Materialbahn dahingehend weiterzubilden, daß die Breite des Bearbeitungsspalts für die Materialbahn unabhängig von der Anstellkraft, mit der die Sonotrode gegen das Gegenwerkzeug bzw. die den Bearbeitungsspalt passierende Materialbahn gedrückt wird, gesteuert oder geregelt werden kann.Of the Invention is therefore the object of a generic device for further processing of a material web to the effect that the width the machining gap for the material web independently from the contact force with which the sonotrode is against the counter tool or the material passing the machining gap is pressed, can be controlled or regulated.
Diese Aufgabe wird durch die in Anspruch 1 wiedergegebene Erfindung gelöst.These The object is achieved by the reproduced in claim 1 invention.
Dadurch, daß die Sonotrode mittelbar oder unmittelbar unter Wirkung einer Kraft gegen eine Anschlagsfläche eines Anschlags wirkt, der relativ zum Gegenwerkzeug im Sinne einer Spaltbreitenänderung verlagerbar ist, kann die Sonotrode bei Nachlassen der ihr durch die Warenbahn entgegengesetzten Gegenkraft sich im Sinne einer Spaltbreitenreduzierung nur soweit verlagern, bis die Verlagerung der Sonotrode durch mittelbare oder unmittelbare Anlage an dem Anschlag gestoppt wird. Die minimale Spaltbreite kann daher durch eine Verlagerung der Anschlags verändert werden.Thereby, that the Sonotrode indirectly or directly under the action of a force against a stop surface a stop acts, relative to the counter tool in the sense of Gap width change is displaceable, the sonotrode may decrease in the case of her the fabric web opposite counterforce in the sense of a gap width reduction only shift so far until the displacement of the sonotrode by indirect or immediate contact with the stop is stopped. The minimum Slit width can therefore be changed by a shift of the stop.
Bei einer ersten bevorzugten konstruktiven Ausgestaltung ist der Anschlag elastisch ausgebildet und die Kraft variierbar. Die minimale Spaltbreite wird daher durch Variation der Kraft, mit der die Sonotrode in Richtung auf das Gegenwerkzeug gedrückt wird, verändert.In a first preferred structural embodiment of the stop is elastic and the power variable. The minimum gap width is therefore varied by varying the force with which the sonotrode is pressed in the direction of the counter-tool.
Bei einer zweiten konstruktiven Variante ist die Anschlagfläche des Anschlags relativ zum Gegenwerkzeug verlagerbar und die Kraft nachgiebig. Die Veränderung der minimalen Spaltbreite erfolgt bei dieser Ausführungsform dadurch, daß die Anschlagfläche aktiv im Sinne der Variation der Spaltenbreite verlagert wird.at a second constructive variant is the stop surface of Stop relocatable relative to the counter tool and the force yielding. The change the minimum gap width occurs in this embodiment in that the stop surface is actively shifted in the sense of the variation of the column width.
Hierzu kann der Anschlag beispielsweise einen Piezo-Translator oder auch einen mechanisch wirkenden Translator umfassen.For this For example, the stopper may be a piezo-translator or else comprise a mechanically acting translator.
Besonders bevorzugt ist eine Ausführungsform, bei der die Mittel zur Erfassung der Spaltbreite und/oder der Spaltbreitenänderung vorgesehen sind. Eine Steuerung oder Regelung der Spaltbreite ist daher möglich, wenn – wie bevorzugt – die Mittel mit dem Sonotrodenkrafterzeuger und/oder dem Anschlag wirkverbunden sind.Especially preferred is an embodiment in which the means for detecting the gap width and / or the gap width change are provided. A control or regulation of the gap width is therefore possible if - how preferred - the Agent operatively connected to the sonotrode force generator and / or the stop are.
Sie können vorzugsweise optisch, elektrisch oder magnetisch arbeitende Sensoren umfassen.she can preferably optically, electrically or magnetically operating sensors include.
Die Sonotrode ist vorzugsweise mittelbar oder unmittelbar mittels mindestens eines biegeelastischen Elements mit einem Maschinengrundkörper verbunden, da hierdurch – wie eingangs ausgeführt – Einstellungenauigkeiten, die durch innere Reibung von Lagerelementen entstehen, wirksam vermieden werden können.The Sonotrode is preferably indirectly or directly by means of at least a flexurally elastic element connected to a machine body, because of this - as at the beginning - adjustment inaccuracies, caused by internal friction of bearing elements are effectively avoided can.
Der Anschlag ist vorzugsweise an dem Maschinengrundkörper angeordnet.Of the Stopper is preferably arranged on the machine base body.
Das biegeelastische Element umfaßt vorzugsweise mindestens ein Blattfederelement. Dieses Blattfederelement besteht vorzugsweise aus einem Flächengebilde aus einem federnden Material, beispielsweise einem Federstahl oder – bevorzugt – einem Glasfasermaterial.The bending elastic element comprises preferably at least one leaf spring element. This leaf spring element preferably consists of a sheet of a resilient Material, such as a spring steel or - preferably - a Fiberglass.
Besonders bevorzugt wird das Gehäuse mittels zweier Blattfederelemente mit dem Maschinengrundkörper verbunden. Dabei wird bevorzugt ein Blattfederelement endseitig mit einem oberen Sonotrodengehäuse, ein weiteres Blattfederelement endseitig mit einem unteren Teil eines Sonotrodengehäuses und beide Blattfederelemente in paralleler Ausrichtung mit dem Maschinengrundkörper verbunden. Vorzugsweise ist das Blattfederelement in einer Grundposition der Gehäuses vorgespannt. Dadurch wird in vorteilhafter Weise erreicht, daß das Blattfederelement in einen Zustand gebracht wird, bei dem es auf vorgegebene Kräfte in gewünschter Weise reagiert. So ist es beispielsweise möglich, daß die Belastungsvorrichtung nur zum Aufbringen vordefinierter Kräfte geeignet ist, die jedoch nicht bei vorgespanntem Federelement zu einer ungewünscht raschen, großen Lageänderung des Gehäuses führen würden. Eine Vorspannung des Blattfederelements sorgt in einem solchen Falle dafür, daß die Reaktionskraft aufgrund der Vorspannung bereits so groß ist, daß das Einbringen von großen Kräften durch die Belastungsvorrichtung nun zu einer gewünschten kleinen Auslenkung des Gehäuses führt. Desweiteren ist es möglich, die Blattfederelemente derart vorzuspannen, daß die Sonotrode unter einer wohldefinierten Grundkraft an der Anschlagfläche des Anschlags anliegt, ohne daß eine zusätzliche Anstellkraft durch einen separaten Krafterzeuger aufgebracht werden muß.Especially the housing is preferred connected by two leaf spring elements with the machine body. In this case, a leaf spring element is preferred end with an upper Sonotrodengehäuse, another leaf spring element end with a lower part a sonotrode housing and both leaf spring elements are connected in parallel alignment with the machine body. Preferably the leaf spring element is biased in a basic position of the housing. This achieves in an advantageous manner that the leaf spring element in a condition is brought in which it is at predetermined forces in the desired Way reacts. So it is possible, for example, that the loading device is only suitable for applying predefined forces, however not at a preloaded spring element to an undesirably fast, huge change of position of the housing would lead. A Bias of the leaf spring member provides in such a case for this, that the Reaction force due to the bias is already so large that the introduction of big ones forces through the loading device now to a desired small deflection of the housing leads. Furthermore, it is possible bias the leaf spring elements such that the sonotrode under a well-defined basic force is applied to the stop surface of the stop, without one additional Anstellkraft be applied by a separate power generator got to.
Besonders bevorzugt weist die Vorrichtung zumindest zwei durch biegebelastende Auslenkung vorgespannte Blattfederelemente auf, die das Gehäuse mit dem Maschinengrundkörper verbinden. Diese sind derart vorgespannt, daß ein Blattfederelement in die entgegengesetzte Richtung zu einem zweiten Blattfederelement ausgelenkt ist. Dies führt dazu, daß Bewegungen des Gehäuses das eine Blattfederelement entspannen, während sie das zweite Blattfederelement weiter belasten. Hierdurch wird, bei gleicher Federkonstantencharakteristik der beiden Blattfederelemente, erreicht, daß das Gehäuse stets unter Aufbringung der gleichen Kraft bewegt werden kann.Especially Preferably, the device has at least two by bending-loading Deflection biased leaf spring elements, which the housing with the machine body connect. These are biased so that a leaf spring element in the opposite direction to a second leaf spring element is distracted. This leads to, that movements of the housing the one leaf spring element relax while the second leaf spring element further burden. This will, with the same spring constant characteristic the two leaf spring elements, ensures that the housing always under application the same force can be moved.
Insbesondere für die Steuerung der erfindungsgemäßen Vorrichtung ist es von Vorteil, wenn diese in einer Weiterbildung der Erfindung Dehnungsmeßstreifen auf dem biegeelastischen Element zur Ermittlung der Biegung/ oder Dehnungsbelastung des biegeelastischen Elements aufweist. Die damit gewonnenen Informationen über die Verformung des biegelastischen Elements können benutzt werden, um Rückschlüsse über die Lager der Sonotrode zu gewinnen. Damit erübrigt es sich, zur Ermittlung der Spaltbreitenänderung während des Betriebs, weitere Meßmittel, insbesondere Distanzmeßmittel, wie beispielsweise aus dem Stand der Technik bekannte Infrarotmeßgeräte, zu verwenden.Especially for the Control of the device according to the invention It is advantageous if this in a development of the invention strain on the flexurally elastic element for determining the bend / or Has strain of bending elastic element. The so gained information about the deformation of the elastic element can be used to draw conclusions about the Warehouse of the sonotrode to win. Thus, it is unnecessary to determine the gap width change while of the company, other measuring equipment, in particular distance measuring means, for example, as known from the prior art Infrarotmeßgeräte to use.
Besonders bevorzugt sind an zwei gegenüberliegenden Oberflächen eines Blattfederelements Dehnungsmeßstreifen angeordnet. Dadurch kann durch Differenzbildung der Meßwerte der Dehnungsmeßstreifen an Information darüber gewonnen werden, ob das biegeelastische Element Biege- oder Dehnungsbelastet wird.Especially preferred are on two opposite surfaces a leaf spring element strain gauges arranged. Thereby can by subtraction of the measured values of the strain gauges about information about it be won whether the flexurally elastic element bending or strain burdened becomes.
Besonders
bevorzugt weist die Vorrichtung eine Belastungsvorrichtung auf,
die aus einer mit dem Gehäuse
zum Aufbringen einer Presskraft oder zum Einstellen der Lage der
Sonotrode verbundenen Kolben/Zylindereinheit mit einer Rollmembran
besteht. Eine derartige Belastungsvorrichtung ist beispielsweise
aus der Druckschrift
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigen:In the drawing are embodiments of Invention shown. Show it:
Die
in
Jeweils
endseitig sind zwei Blattfederelemente
Ein
als Walze ausgebildetes, metallisches Gegenwerkzeug
Die
Sonotrode
Der
Anschlag
Anstelle
als elastisches Element kann der Anschlag
An
beiden Oberflächen
der flachstabförmigen
Blattfedern
Diese
Informationen über
die Formänderungen
der Blattfedern
Ferner
umfaßt
die Vorrichtung einen nur schematisch angedeuteten Sensor
Die
Kolben-Zylindereinheit
Claims (19)
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DE2003131064 DE10331064B4 (en) | 2003-07-09 | 2003-07-09 | Device for processing a material web |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006074105A1 (en) * | 2005-01-03 | 2006-07-13 | 3M Innovative Properties Company | Gap adjustment for an ultrasonic welding system |
WO2007011272A1 (en) * | 2005-07-20 | 2007-01-25 | Sca Hygiene Products Ab | Arrangement and method for treatment of a material by means of an ultrasonic device |
DE102006009890A1 (en) * | 2006-03-03 | 2007-09-06 | Rovema - Verpackungsmaschinen Gmbh | Apparatus for welding plastics comprises a device for adjusting the gap between a movable anvil and a sonotrode in the form of a nut with a slit into which spacer plates are inserted and a spacer arm that screws into the nut |
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 |
DE102009002675A1 (en) * | 2009-04-27 | 2010-10-28 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultrasonic sealing device and method for sealing webs of material |
US7828192B2 (en) | 2005-01-03 | 2010-11-09 | 3M Innovative Properties Company | Amplitude adjustment of an ultrasonic horn |
US9346140B2 (en) | 2011-12-21 | 2016-05-24 | Ms Spaichingen Gmbh | Anvil for ultrasonic machining |
DE102015110387A1 (en) * | 2015-06-29 | 2016-12-29 | Sig Technology Ag | Device for processing, in particular for ultrasonic welding, of packaging coats |
DE102016112757A1 (en) * | 2016-07-12 | 2018-01-18 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultrasonic machining device |
EP3789186A1 (en) | 2019-09-05 | 2021-03-10 | MS Ultraschall Technologie GmbH | Ultrasonic treatment device |
WO2023061661A1 (en) | 2021-10-15 | 2023-04-20 | Ms Ultraschall Technologie Gmbh | Device and method for processing a workpiece |
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DE102015121354A1 (en) * | 2015-12-08 | 2017-06-08 | Ms Ultraschall Technologie Gmbh | STAND MACHINE |
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DE4439284C3 (en) * | 1994-10-19 | 2000-04-20 | Herrmann Ultraschalltechnik | Device and method for the continuous ultrasonic processing of a material web |
Cited By (20)
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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 |
WO2006074105A1 (en) * | 2005-01-03 | 2006-07-13 | 3M Innovative Properties Company | Gap adjustment for an ultrasonic welding system |
EP1910012A4 (en) * | 2005-07-20 | 2017-01-18 | SCA Hygiene Products AB | Arrangement and method for treatment of a material by means of an ultrasonic device |
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US7776171B2 (en) | 2005-07-20 | 2010-08-17 | Sca Hygiene Products Ab | Arrangement and method for treatment of a material by means of an ultrasonic device |
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DE102006009890A1 (en) * | 2006-03-03 | 2007-09-06 | Rovema - Verpackungsmaschinen Gmbh | Apparatus for welding plastics comprises a device for adjusting the gap between a movable anvil and a sonotrode in the form of a nut with a slit into which spacer plates are inserted and a spacer arm that screws into the nut |
DE102009002675A1 (en) * | 2009-04-27 | 2010-10-28 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultrasonic sealing device and method for sealing webs of material |
US8557071B2 (en) | 2009-04-27 | 2013-10-15 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultrasound welding device and method for welding material webs |
EP2424724B1 (en) | 2009-04-27 | 2019-08-28 | Herrmann Ultraschalltechnik GmbH & Co. KG | Ultrasound welding device and method for welding material webs |
US9346140B2 (en) | 2011-12-21 | 2016-05-24 | Ms Spaichingen Gmbh | Anvil for ultrasonic machining |
DE102015110387A1 (en) * | 2015-06-29 | 2016-12-29 | Sig Technology Ag | Device for processing, in particular for ultrasonic welding, of packaging coats |
US10625893B2 (en) | 2015-06-29 | 2020-04-21 | Sig Technology Ag | Device for processing, in particular for ultrasound welding, of packaging sleeves |
DE102016112757A1 (en) * | 2016-07-12 | 2018-01-18 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultrasonic machining device |
EP3789186A1 (en) | 2019-09-05 | 2021-03-10 | MS Ultraschall Technologie GmbH | Ultrasonic treatment device |
US11660688B2 (en) | 2019-09-05 | 2023-05-30 | Ms Ultraschall Technologie Gmbh | Ultrasonic machining apparatus |
WO2023061661A1 (en) | 2021-10-15 | 2023-04-20 | Ms Ultraschall Technologie Gmbh | Device and method for processing a workpiece |
DE102021126774A1 (en) | 2021-10-15 | 2023-04-20 | Ms Ultraschall Technologie Gmbh | DEVICE AND METHOD FOR MACHINING A WORKPIECE |
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