DE4026711A1 - Welding machine for plastic components - moves them to heated blade and then butt welds them together using feed system which moves them very precisely - Google Patents

Welding machine for plastic components - moves them to heated blade and then butt welds them together using feed system which moves them very precisely

Info

Publication number
DE4026711A1
DE4026711A1 DE19904026711 DE4026711A DE4026711A1 DE 4026711 A1 DE4026711 A1 DE 4026711A1 DE 19904026711 DE19904026711 DE 19904026711 DE 4026711 A DE4026711 A DE 4026711A DE 4026711 A1 DE4026711 A1 DE 4026711A1
Authority
DE
Germany
Prior art keywords
welding
force
moves
travel
feed
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.)
Ceased
Application number
DE19904026711
Other languages
German (de)
Inventor
Ulrich Grosser
Gerhard Heese
Dietmar Waechtler
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.)
Branson Ultraschall Niederlassung der Emerson Technologies GmbH and Co OHG
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19904026711 priority Critical patent/DE4026711A1/en
Publication of DE4026711A1 publication Critical patent/DE4026711A1/en
Ceased 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/28—Electric 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • B29C65/2069—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding with an angle with respect to the plane comprising the parts to be joined
    • B29C65/2076—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding with an angle with respect to the plane comprising the parts to be joined perpendicularly to the plane comprising the parts to be joined
    • 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
    • B29C66/8244—Actuating mechanisms magnetically driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—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
    • B29C66/9221—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 pressure, the force or the mechanical power
    • B29C66/92211—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 pressure, the force or the mechanical power with special 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
    • B29C66/92—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
    • 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
    • B29C66/93—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
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • 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
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges

Landscapes

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

Abstract

A layout for welding successive plastic components has a control system and at least one device to guide and feed the components during the welding process, this device has an electromagnetic drive and stepped motor. ADVANTAGE - The layout is efficient and convenient. In partic. its feed system is efficient.

Description

Die Erfindung betrifft eine regelbare Kunststoffschweißanlage zum diskonti­ nuierlichen Verschweißen einzelner Werkstücke mit mindestens einer Vorschub­ einrichtung zur Werkstückführung während des Schweißvorganges.The invention relates to a controllable plastic welding system for discounting Nuclear welding of individual workpieces with at least one feed device for workpiece guidance during the welding process.

Beim Verbinden von Kunststoffteilen durch Schweißverfahren ist es bei vielen Anwendungen notwendig, eine möglichst genaue Kontrolle über die für den Füge­ vorgang entscheidenden Parameter auszuüben. Diese Parameter sind (abgesehen von der Temperatur des Werkstückes) insbesondere die Drücke bzw. die Kräfte, die auf ein Werkstück während des gesamten Schweißvorganges wirken, sowie die Geschwindigkeiten, mit denen die Werkstücke während des Schweißvorganges be­ wegt werden. Mit der Kontrolle der Geschwindigkeit verbunden ist die Kontrol­ le über die Dauer einzelner Phasen des Schweißprozesses. Beispielsweise setzt sich der gesamte Schweißvorgang beim Heizelementstumpfschweißen zusammen aus einer Anwärmphase, bei der die zu verschweißenden Teile an das Heizschwert gefahren werden, danach folgt die Umstellphase, bei der die aufgeheizten Werkstücke vom Heizschwert getrennt werden und das Heizschwert aus dem Ver­ fahrweg der Teile entfernt wird. In der Fügephase werden die Teile schließ­ lich bis zum Verfestigen der Schweißnaht zusammengepreßt. Gerade beim Ver­ schweißen von Hochleistungskunststoffen, wie Polyarylensulfiden, Polyethere­ therketon, speziellen Polycarbonaten und Polyphenylensulfid oder faserver­ stärkten Kunststoffen mit einem hohen Faseranteil, sind die Anforderungen an die Güte und Festigkeit und damit an eine genaueste Kontrolle und Steuerung der Schweißparameter besonders hoch. Diese erhöhten Anforderungen können vielfach nur durch eine Steuerung der Schweißanlagen durch Mikroprozessoren bzw. Computeranlagen reproduzierbar eingehalten werden.When connecting plastic parts by welding, it is the case with many Applications necessary, the most precise control possible for the joining process decisive parameter. These parameters are (apart from the temperature of the workpiece) especially the pressures or the forces, that act on a workpiece during the entire welding process, as well as the Speeds at which the workpieces be during the welding process be moved. The control is connected with the control of the speed le over the duration of individual phases of the welding process. For example, sets the entire welding process during butt welding is combined a warm-up phase in which the parts to be welded to the heating bar be driven, followed by the changeover phase, in which the heated Workpieces are separated from the heating element and the heating element from the ver path of the parts is removed. In the joining phase, the parts close Lich compressed until the weld seam solidifies. Especially when ver welding of high-performance plastics, such as polyarylene sulfides, polyethers ether ketone, special polycarbonates and polyphenylene sulfide or fiber reinforced plastics with a high fiber content are the requirements the quality and strength and thus the most precise control the welding parameters are particularly high. These increased requirements can often only by controlling the welding systems with microprocessors or computer systems are reproducibly observed.

Solche rechnergesteuerten Schweißanlagen sind bekannt. Die bekannten Anlagen weisen in der Regel pneumatisch angetriebene Vorschubeinheiten seltener ölhy­ draulisch angetriebener Vorschubeinheiten zum Verfahren der Werkstücke auf. Eine rechnergesteuerte Schweißanlage ist beispielsweise in Plastverarbeiter 36 (1985), Nr. 10, 86-94, beschrieben.Computer-controlled welding systems of this type are known. The well-known plants As a rule, pneumatically driven feed units are less often oil-hygienic draulically driven feed units for moving the workpieces. A computer-controlled welding system is, for example, in plastics processors 36 (1985), No. 10, 86-94.

Nachteilig ist bei pneumatischen Anlagen besonders die lange Umstellphase, da bei der Umkehr der Bewegungsrichtung jeweils der gesamte Kolbenhub durchfah­ ren werden muß. Ein anderer Nachteil besteht darin, daß die Geschwindigkeit der Vorschubschlitten aufgrund fehlender regelbarer Durchflußmengenventile nicht exakt einstellbar ist und somit ein präzises Abfahren unterschiedlicher Geschwindigkeiten innerhalb eines Schweißzyklus unmöglich ist. Da weiterhin sowohl die Vorschubgeschwindigkeit als auch die Kraftanstiegsflanke, d. h. die Geschwindigkeit, mit der sich die Kraft vor einem Widerstand aufbaut, von der Zufuhrmenge an Druckmedium abhängen, sind beide Größen nicht unabhängig voneinander einstellbar. Zudem kommt es bei einer schnellen Kraftänderung in den Druckmedien zu unerwünschten Schwingungen. Die Kompressibilität gasförmi­ ger Druckmedien, die ursächlich zu den oben aufgeführten Nachteilen beiträgt, bewirkt bei den bisher üblichen Schweißanlagen zwar einen gewissen Selbstre­ gulierungsmechanismus, jedoch wird gerade bei modernen Kunststoffen eine exakte Führung des Schweißvorganges, insbesondere eine schnelle Umstellzeit, immer wesentlicher.A disadvantage of pneumatic systems is the long changeover phase, because when the direction of movement is reversed, the entire piston stroke must be ren. Another disadvantage is that the speed  the feed carriage due to the lack of adjustable flow valves is not exactly adjustable and therefore a precise departure of different Speeds within a welding cycle is impossible. Because continues both the feed rate and the rising edge, d. H. the speed at which the force builds up in front of a resistance from depend on the amount of pressure medium, both sizes are not independent adjustable from each other. It also comes in with a quick change in force the print media to unwanted vibrations. Compressibility gaseous media that causes the disadvantages listed above, brings about a certain self-rejection in the welding systems that have been customary up to now regulation mechanism, but is becoming a problem with modern plastics in particular exact control of the welding process, especially a quick changeover time, more and more essential.

Hydraulische Systeme, die eine gegenüber pneumatischen verbesserte Steuerung des Schweißzyklus ermöglichen, benutzen eine aufwendige Ventiltechnik. Damit verbunden sind hohe Anlagenkosten, ein relativ großer Wartungsaufwand. Eine präzise Einstellung von hydraulischen Anlagen ist zudem aufgrund der großen Wärmeausdehnung von Flüssigkeiten von der Temperatur abhängig. Mit den pneu­ matischen Systemen teilen die hydraulischen den Nachteil eines schlechten Wirkungsgrades und verhältnismäßig großer Anlagemaße. Darüber hinaus erfor­ dern ölhydraulische Anlagen eine Entsorgung des gebrauchten Hydrauliköls.Hydraulic systems that have an improved control over pneumatic of the welding cycle, use complex valve technology. In order to associated are high system costs, a relatively large amount of maintenance. A precise setting of hydraulic systems is also due to the large Thermal expansion of liquids depends on the temperature. With the tires The hydraulic systems share the disadvantage of a bad one Efficiency and relatively large plant dimensions. In addition, Oil hydraulic systems dispose of the used hydraulic oil.

Es bestand daher die Aufgabe, eine verbesserte Schweißanlage zu entwickeln. 1nsbesondere bestand die Aufgabe darin, die Vorschubsysteme einer solchen Anlage zu verbessern.The task was therefore to develop an improved welding system. In particular, the task was to develop the feed systems of such Plant to improve.

Die Aufgabe wird dadurch gelöst, daß die Vorschubeinrichtungen elektromagne­ tisch angetrieben werden.The object is achieved in that the feed devices are electromagnetic be driven table.

Elektromagnetische Antriebe sind verhältnismäßig wartungsarm und besitzen den Vorteil einer kompakten Bauweise. Sie sind weiter durch eine elektronische Steuerung besonders einfach und nahezu verzögerungsfrei regelbar.Electromagnetic drives are relatively low-maintenance and have the Advantage of a compact design. You are further through an electronic Control is particularly simple and can be regulated with almost no delay.

Eine besonders bevorzugte Ausführungsform der neuen Anlage ist dadurch ge­ kennzeichnet, daß der elektromagnetische Antrieb ein Schrittmotor ist. A particularly preferred embodiment of the new system is ge indicates that the electromagnetic drive is a stepper motor.  

Schrittmotoren sind besonders zur Steuerung durch Mikroprozessoren geeignet. Sie eignen sich für Positionierungsaufgaben. Ein Nachteil für ihren Einsatz in der Schweißtechnik besteht in dem konstruktiv vorgegebenen, festen Dreh­ moment, wodurch eine Steuerung der beim Schweißzyklus wirkenden Kräfte er­ schwert wird.Stepper motors are particularly suitable for control by microprocessors. They are suitable for positioning tasks. A disadvantage for their use in welding technology, there is the fixed design that is specified in the design moment, thereby controlling the forces acting on the welding cycle sword.

Diese Schwierigkeit wird durch die neue Vorrichtung überwunden. Abhängig von der Auslegung der Schrittmotoren lassen sich maximal erreichbare Geschwindig­ keiten, minimale Umstellzeiten und definierte zur Verfügung stehende Kraftbe­ reiche bestimmen.This difficulty is overcome by the new device. Depending on The design of the stepper motors allows maximum achievable speeds times, minimal changeover times and defined available power determine rich.

Im folgenden wird eine Heizelementstumpfschweißanlage, die in einer Zeichnung dargestellt ist, näher beschrieben.The following is a heating element butt welding system, which is shown in a drawing is described, described in more detail.

Es zeigtIt shows

Fig. 1 Darstellung der Schweißanlage (schematisch, ohne Steuerungsanlage) Fig. 1 representation of the welding system (shown schematically, without control system)

Fig. 2 Darstellung einer Vorschubeinrichtung Fig. 2 representation of a feed device

Fig. 3 Darstellung der Steuerungsanlage (Blockbild) Fig. 3 showing the control system (block diagram)

Die Heizelementstumpfschweißanlage besteht im wesentlichen aus dem Heizele­ ment 1, auch Heizschwert genannt, an das sie zu verschweißenden Werkstücke zum Aufheizen herangefahren werden und das in der Umstellphase auf übliche Weise aus dem Verfahrweg gebracht wird. Die Werkstücke werden auf Vorschub­ einrichtungen 2 gespannt. Die Vorschubeinrichtungen 2 werden vermittels Vor­ schubspindeln 3 durch Schrittmotoren 4 angetrieben. Die Vorschubeinrichtungen 3 sind über Schlitten 21 mit den Vorschubspindeln 3 verbunden. Weiter weisen die Vorschubeinrichtungen zwei Linearrollenführungen 22 auf, in denen Gleit­ tische 23 nahezu reibungsfrei gelagert sind. Mittels Werkstückhalterungen 24 werden die Werkstücke auf den Gleittischen 23 vor dem Schweißzyklus befe­ stigt.The heating element butt welding system consists essentially of the Heizele element 1 , also called the heating element, to which they are brought up to be welded workpieces for heating and which is moved from the travel path in the usual way in the changeover phase. The workpieces are clamped on feed devices 2 . The feed devices 2 are driven by means of feed spindles 3 by stepping motors 4 . The feed devices 3 are connected to the feed spindles 3 via carriages 21 . Furthermore, the feed devices have two linear roller guides 22 , in which sliding tables 23 are mounted almost without friction. By means of workpiece holders 24 , the workpieces on the sliding tables 23 are fixed before the welding cycle.

Die Vorschubeinrichtungen wiesen zudem noch Kraftaufnehmer auf, die sich hier vorteilhaft zusammensetzen aus einer Biegefeder 25 und vier Dehnungsmeßstrei­ fen 26 zur Messung der Auslenkung der Feder 25. Die Vorteile der Kraftmessung durch ein System aus biegsamer Feder und Meßeinrichtung zur Registrierung ihrer Auslenkung liegen zum einen in der genauen Linearität der Beziehung zwischen Auslenkung und auslenkender Kraft über einen weiten Bereich. Zum anderen besteht die Möglichkeit, über die Einstellung der Dämpfung der Feder die Rechteckimpulse, die der Schrittmotor 4 aufgrund seiner digitalen An­ steuerung auf die Vorschubeinrichtung 2 ausübt, im gewünschten Maße glätten. Weitere vorteilhafte Ausführungsformen von Schweißanlagen sind den den Pa­ tentansprüchen beschrieben.The feeding means also had more force transducers, which are composed here advantageous for a bending spring 25 and four Dehnungsmeßstrei fen 26 for measuring the deflection of the spring 25th The advantages of force measurement by means of a system consisting of a flexible spring and a measuring device for registering their deflection lie, on the one hand, in the precise linearity of the relationship between deflection and deflecting force over a wide range. On the other hand, there is the possibility of smoothing the rectangular pulses that the stepper motor 4 exerts on the feed device 2 due to its digital control by adjusting the damping of the spring to the desired extent. Further advantageous embodiments of welding systems are described in the claims.

Die elektronische Steuerung der Anlage geschieht durch an sich bekannte Ele­ mente. Die vom Kraftmesser 25, 26 bzw. von einem Wegaufnehmer 31 gemessenen Werte werden an eine Meßverstärker- und Komparatoreinheit 32 übergeben. Der Komparator dient dem Vergleich der Ist = Werte, die gemessen werden, mit Soll­ werten. Zur Eingabe der Sollwerte und zur Programmierung der Steuereinheit 33 der Schrittmotoren 4 dient ein Personalcomputer 34. Der Computer 34 wird ebenfalls zur Speicherung und Ausgabe der gemessenen Daten verwendet. Die Pfeile kennzeichnen die möglichen Richtungen des Signalflusses.The electronic control of the system is done by elements known per se. The values measured by the dynamometer 25 , 26 or by a displacement sensor 31 are transferred to a measuring amplifier and comparator unit 32 . The comparator is used to compare the actual = values that are measured with target values. A personal computer 34 is used to enter the target values and to program the control unit 33 of the stepping motors 4 . The computer 34 is also used to store and output the measured data. The arrows indicate the possible directions of the signal flow.

Der Regelkreis Wegaufnehmer/Kraftaufnehmer 31, 25, 26 sowie Meßverstärker/- Komparator 32 und Steuereinheit 33 ermöglicht verschiedene Arten der Steue­ rung des Schweißzyklus:
Beim kraftgesteuerten Schweißen werden die Anwärmkräfte und Schweißkräfte, die auf die zu schweißenden Werkstücke wirken sollen, als Sollwerte vorgege­ ben. Die Werkstücke werden mit definierter Geschwindigkeit vorgefahren, bis die vorgegebene Kraft mit der durch die Kraftmesser 25, 26 gemessenen Kraft übereinstimmt. Weicht während des Aufheiz- oder Fügeschrittes die Kraft um einen einstellbaren Toleranzwert vom Sollwert ab, so wird der Schrittmotor 4 wieder entsprechend angesteuert. Der Signalfluß wird dazu direkt vom Kompa­ rator 32 auf die Steuereinheit 33 übertragen, um die Reaktionszeiten kurz zu halten. Die Regelung ist für beide Vorschubeinheiten 2 völlig getrennt durch­ führbar.The control loop displacement transducer / force transducer 31 , 25 , 26 as well as measuring amplifier / comparator 32 and control unit 33 enables various types of control of the welding cycle:
With force-controlled welding, the heating forces and welding forces that are to act on the workpieces to be welded are specified as setpoints. The workpieces are advanced at a defined speed until the predetermined force coincides with the force measured by the dynamometers 25 , 26 . If the force deviates from the target value by an adjustable tolerance value during the heating or joining step, the stepper motor 4 is again activated accordingly. The signal flow is transmitted directly from the comparator 32 to the control unit 33 in order to keep the response times short. The control is completely separate for both feed units 2 feasible.

Beim weggesteuerten Schweißen werden die Halte- bzw. Umkehrpunkte als Soll­ werte vorgegeben. Dieses Verfahren entspricht dem herkömmlichen Schweißen mit Anschlag. Die vorgegebenen Positionen werden dabei unabhängig von der sich anbauenden Gegenkraft mit vorgebbarer Geschwindigkeit angefahren. Der Vor­ schub stoppt an den Sollpunkten oder wenn die Gegenkraft das Drehmoment des Schrittmotors 4 übersteigt. With path-controlled welding, the stopping or reversal points are specified as setpoints. This procedure corresponds to conventional welding with a stop. The specified positions are approached at a predeterminable speed regardless of the counterforce being built up. The advance stops at the setpoints or when the counterforce exceeds the torque of the stepping motor 4 .

Beide Verfahren unterscheiden sich wesentlich dadurch, daß beim kraftge­ steuerten Schweißen die vorgegebene Kraft bis zum Erkalten der Schweißverbin­ dung konstant gehalten wird. Damit wird eine verbesserte Festigkeit der Schweißnaht erzielt. Beim weggesteuerten Schweißen kommt es durch den Schrumpfungsprozeß und durch Schmelzefluß beim Abkühlen zu einem Abfall der wirkenden Kraft. Die Festigkeit der Naht kann dadurch beeinträchtigt werden, jedoch bleibt die Verbindung maßgenau.Both methods differ significantly in that the Kraftge welding controlled the specified force until the weld joint cooled tion is kept constant. This will improve the strength of the Weld seam achieved. With path-controlled welding, it comes through the Shrinkage process and by melt flow when cooling to a waste of acting force. The strength of the seam can be affected however, the connection remains dimensionally accurate.

Mit der neuen Anlage lassen sich auch beide Schweißarten beispielsweise durch eine Wegsteuerung beim Aufheizschritt und eine Kraftsteuerung beim Fügen kom­ binieren.With the new system, both types of welding can be carried out, for example a path control during the heating step and a force control when joining com binieren.

Im folgenden wird beispielhaft ein Schweißzyklus zur Heizelementstumpfschwei­ ßung von Polyphenylensulfid beschrieben.The following is an example of a welding cycle for heating element butt welding ß described polyphenylene sulfide.

Die Probeplatten werden mit einer Geschwindigkeit von einhundert Millimetern pro Sekunde bis zwei Millimeter vor das auf dreihundertachtzig Grad Celsius temperierte Heizelement 1 gefahren. Nach Durchlaufen einer Bremsrampe werden die zu verschweißenden Probeplatten mit einer Geschwindigkeit von drei Milli­ meter pro Sekunde gegen das Heizelement 1 gefahren. Die Probeplatten werden nun mit einer Kraft von 0,8 Newton pro Quadratmillimeter zu verschweißender Fläche gegen das Heizelement 1 gedrückt bis 0,5 Millimeter an jeder Probe­ platte abgeschmolzen sind. Nach erreichen dieser Position verweilt die Anlage für einen Zeitraum von 10 Sekunden. Während dieses Zeitraumes baut sich die Anpreßkraft fast vollständig und kontinuierlich ab. Beide Vorschubeinheiten fahren nun mit einer Geschwindigkeit von einhundert Millimetern pro Sekunde jeweils zehn Millimeter zurück.The sample plates are moved at a speed of one hundred millimeters per second to two millimeters in front of the heating element 1 , which is heated to three hundred and eighty degrees Celsius. After passing through a braking ramp, the test plates to be welded are moved against heating element 1 at a speed of three millimeters per second. The test plates are now pressed against the heating element 1 with a force of 0.8 Newton per square millimeter of area to be welded until 0.5 millimeters of each test plate have melted. After reaching this position, the system remains for a period of 10 seconds. During this period, the contact pressure decreases almost completely and continuously. Both feed units now move back ten millimeters at a speed of one hundred millimeters per second.

Gleichzeitig wird das Heizelement 1 mit einer Geschwindigkeit von vierhundert Millimetern pro Sekunde zwischen den Vorschubeinheiten herausgefahren. Ohne Verweilzeit werden die angeschmolzenen Probeplatten durch die Vorschubeinhei­ ten mit einer Geschwindigkeit von einhundert Millimetern pro Sekunde bis 0,5 Millimeter vor dem Zusammentreffen der Schmelze zusammengefahren. Die Vor­ schubgeschwindigkeiten der beiden Vorschubeinheiten werden dann ohne Verweil­ zeit auf fünf Millimeter pro Sekunde eingestellt. Mit dieser Geschwindigkeit werden die beiden angeschmolzenen Probeplatten zusammengedrückt, bis sich eine Kraft von 0,5 Newton pro Quadratmillimeter zu verschweißender Fläche eingestellt hat. Schmelzeflußeffekte nach dem erstmaligen Erreichen dieser Kraft können ausgeglichen werden. Nach Ablauf einer Verweilzeit von zwanzig Sekunden können die verschweißten Probeplatten entnommen werden, die Anlage stellt sich zurück in die Ausgangslage.At the same time, the heating element 1 is moved out between the feed units at a speed of four hundred millimeters per second. Without any dwell time, the melted test plates are moved together by the feed units at a speed of one hundred millimeters per second to 0.5 millimeters before the melt meets. The feed speeds of the two feed units are then set to five millimeters per second without dwell time. The two melted test plates are pressed together at this speed until a force of 0.5 Newton per square millimeter of surface to be welded has been established. Melt flow effects after reaching this force for the first time can be compensated. After a dwell time of twenty seconds, the welded test panels can be removed and the system returns to its original position.

Claims (12)

1. Kunststoffschweißanlage mit Steuereinrichtung zum diskontinuierlichen Ver­ schweißen einzelner Werkstücke mit mindestens einer Vorschubeinrichtung zur Werkstückführung während des Schweißvorganges, dadurch gekennzeichnet, daß die Vorschubeinrichtung einen elektromagnetischen Antrieb aufweist.1. Plastic welding system with control device for discontinuous welding of individual workpieces with at least one feed device for workpiece guidance during the welding process, characterized in that the feed device has an electromagnetic drive. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der elektromagne­ tische Antrieb ein Schrittmotor ist.2. Device according to claim 1, characterized in that the electromagnetic table drive is a stepper motor. 3. Vorrichtung nach dem Anspruch 1 und 2, dadurch gekennzeichnet, daß die Steuereinrichtung einen Kraftaufnehmer aufweist.3. Device according to claim 1 and 2, characterized in that the Control device has a force transducer. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Kraftaufneh­ mer mindestens einer Biegefeder und mindestens einen Dehnungsmeßstreifen aufweist.4. The device according to claim 3, characterized in that the Kraftaufneh mer at least one spiral spring and at least one strain gauge having. 5. Vorrichtung nach Anspruch 1, 2 und 3, dadurch gekennzeichnet, daß die Steuereinrichtung mindestens einen Kraftaufnehmer aufweist, der die ent­ stehenden Kraftspitzen der Reaktionskräfte glättet.5. Apparatus according to claim 1, 2 and 3, characterized in that the Control device has at least one force transducer, which ent standing force peaks of the reaction forces smoothes. 6. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Vor­ schubeinrichtung zur Führung des Schweißwerkzeuges und zur Schweißkraft­ aufbringung eingesetzt wird.6. The device according to claim 1 and 2, characterized in that the pre pushing device for guiding the welding tool and the welding force application is used. 7. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Steuer­ einrichtung frei definierbares, kraftabhänigiges und wegabhängiges Schwei­ ßen ermöglicht.7. The device according to claim 1 and 2, characterized in that the tax establishment of freely definable, force-dependent and path-dependent welding allows eating. 8. Vorrichtung nach Anspruch 3, 4, 5 und 6, dadurch gekennzeichnet, daß die Schweißkraftaufbringung durch die Vorschubeinrichtung über einen Ultra­ schallwandler mit Ultraschallschweißwerkzeug geschieht. 8. The device according to claim 3, 4, 5 and 6, characterized in that the Application of welding force by the feed device via an Ultra sonic transducer happens with ultrasonic welding tool.   9. Vorrichtung nach Anspruch 1, mit mindestens jeweils einem Kraftmesser, Wegsensor, elektrischen und/oder mechanischen Dämpfungsglied, Komparator, Meßsignalverstärker und intelli- genter Steuereinheit, z. B. Personalcomputer, zur Steuerung und Regelung der Prozeßparameter, dadurch gekennzeichnet, daß der elektromagnetische Antrieb zur Erreichung der optimalen Schweißnahtqualität durch wahlweisen Einsatz der Sensoren ge­ regelt und gesteuert wird.9. The device according to claim 1, with at least one each Force meter, displacement sensor, electrical and / or mechanical Attenuator, comparator, measuring signal amplifier and intelligent gent control unit, e.g. B. personal computer for control and regulation of the process parameters, characterized in that the electromagnetic drive to achieve the optimum Weld seam quality through optional use of the sensors regulates and is controlled. 10. Vorrichtung nach Anspruch 1 und 9, dadurch gekennzeichnet, daß alle für den Schweißprozeß benötigten Verfahrwege, Ver­ fahrgeschwindigkeiten und Verfahrkräfte selbsttätig er­ mittelt, eingestellt und nachgeregelt werden.10. The device according to claim 1 and 9, characterized in that all travel paths required for the welding process, Ver travel speeds and travel forces automatically averaged, adjusted and readjusted. 11. Vorrichtung nach Anspruch 1, 9 und 10, dadurch gekennzeich­ net, daß die zur Anwendung kommenden Schweißprozeßparameter (Verfahrwege, aufgebrachte Kräfte, Verweilzeiten und Verfahr­ geschwindigkeiten) vom elektromagnetischen Antrieb entspre­ chend den in der intelligenter Steuereinheit, z. B. Per­ sonalcomputer, gespeicherten Kunststoffmaterialdaten reali­ siert werden.11. The device according to claim 1, 9 and 10, characterized net that the welding process parameters used (Travel paths, applied forces, dwell times and travel speeds) correspond to the electromagnetic drive chend in the intelligent control unit, for. B. Per sonalcomputer, stored plastic material data reali be settled. 12. Vorrichtung nach Anspruch 1 und 9, dadurch gekennzeichnet, daß die Verfahrkräfte des elektromagnetischen Antriebes über mindestens eine Komparatorschaltung zur Erzielung optimaler Schweißergebnisse auf einen Sollwert geregelt wird.12. The device according to claim 1 and 9, characterized in that the travel forces of the electromagnetic drive over at least one comparator circuit to achieve optimal Welding results is regulated to a target value.
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EP0595213A1 (en) * 1992-10-28 1994-05-04 WEGENER GmbH Welding apparatus
US5795431A (en) * 1992-10-28 1998-08-18 Wegener Gmbh Welding equipment
DE4241974C1 (en) * 1992-12-12 1993-11-25 Lemo Maschb Gmbh Simple welding appts. for use with thermoplastic film - has drive for vertical screw spindle whose ends are oppositely threaded so as to bring together or separate welding and backing blades
WO1996015898A1 (en) * 1994-11-21 1996-05-30 Ulrike Richter Butt-welding device for pipes made of thermoplastic materials
US5814181A (en) * 1994-11-21 1998-09-29 Ulrike Richter Device for butt welding pipes of thermoplastic plastic
EP0823969A1 (en) * 1995-05-05 1998-02-18 International Paper Company Device and method for testing heat seals
EP0823969A4 (en) * 1995-05-05 1999-02-17 Int Paper Co Device and method for testing heat seals
WO1999038666A1 (en) * 1998-02-02 1999-08-05 Eduard Küsters Maschinenfabrik GmbH & Co. KG Device for processing a strip of material with ultrasound
US6508641B1 (en) 1998-02-02 2003-01-21 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Device for processing a strip of material with ultrasound
FR2838371A1 (en) * 2002-04-10 2003-10-17 Hubert Klein Welding assembly with a hot welding plate, for welding plastics workpieces, has electro-hydraulic pistons to move the holders under numerical control
DE10328498A1 (en) * 2003-06-25 2005-01-20 Pfaff Industrie Maschinen Ag Plastic welding machine
DE10328498B4 (en) * 2003-06-25 2008-08-14 Pfaff Industrie Maschinen Ag Plastic welding machine
WO2008018935A3 (en) * 2006-05-08 2008-05-02 Dukane Corp Ultrasonic press using servo motor with integrated linear actuator
US9849627B2 (en) 2006-05-08 2017-12-26 Dukane Ias, Llc Ultrasonic press using servo motor with delayed motion
US7819158B2 (en) 2006-05-08 2010-10-26 Dukane Corporation Ultrasonic press using servo motor with integrated linear actuator
US9914263B2 (en) 2006-05-08 2018-03-13 Dukane Ias, Llc Ultrasonic press with automatic speed changes in advancing movement of welding stack
US9849628B2 (en) 2006-05-08 2017-12-26 Dukane Ias, Llc Ultrasonic welding method using delayed motion of welding stack
US8720516B2 (en) 2006-05-08 2014-05-13 Dukane Corporation Ultrasonic press using servo motor with delayed motion
US9144937B2 (en) 2006-05-08 2015-09-29 Dukane Corporation Ultrasonic press using servo motor with delayed motion
US9486955B2 (en) 2006-05-08 2016-11-08 Dukane Ias, Llc Ultrasonic press using servo motor with delayed motion
US9586361B2 (en) 2006-05-08 2017-03-07 Dukane Ias, Llc Ultrasonic press using servo motor with delayed motion
WO2008018935A2 (en) * 2006-05-08 2008-02-14 Dukane Corporation Ultrasonic press using servo motor with integrated linear actuator
US8721817B2 (en) 2010-07-14 2014-05-13 Dukane Corporation Vibration welding system
US8245748B2 (en) 2010-07-14 2012-08-21 Dukane Corporation Vibration welding system
US9688017B2 (en) 2013-05-14 2017-06-27 Dukan IAS, LLC Vibration welders with high frequency vibration, position motion control, and delayed weld motion
US10549481B1 (en) 2018-12-21 2020-02-04 Dukane Ias, Llc Systems and methods for low initial weld speed in ultrasonic welding

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