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DE1256340B - High frequency welding device for thermoplastic plastic films, in particular for closing packaging containers - Google Patents

High frequency welding device for thermoplastic plastic films, in particular for closing packaging containers

Info

Publication number
DE1256340B
DE1256340B DEH41310A DEH0041310A DE1256340B DE 1256340 B DE1256340 B DE 1256340B DE H41310 A DEH41310 A DE H41310A DE H0041310 A DEH0041310 A DE H0041310A DE 1256340 B DE1256340 B DE 1256340B
Authority
DE
Germany
Prior art keywords
electrodes
capacitor
replacement
welding
assigned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEH41310A
Other languages
German (de)
Inventor
Dr-Ing Ulrich Bauder
Hans Paal
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.)
FR Hesser Maschinenfabrik AG
Original Assignee
FR Hesser Maschinenfabrik AG
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 FR Hesser Maschinenfabrik AG filed Critical FR Hesser Maschinenfabrik AG
Priority to DEH41310A priority Critical patent/DE1256340B/en
Priority to CH1419861A priority patent/CH393572A/en
Publication of DE1256340B publication Critical patent/DE1256340B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/227—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by induction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C65/7858—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 characterised by the feeding movement of the parts to be joined
    • B29C65/7879—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 characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path
    • B29C65/7882—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 characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path said parts to be joined moving in a circular path
    • B29C65/7885—Rotary turret joining machines, i.e. having several joining tools moving around an 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • B29C66/82263—Follower pin or roller cooperating with a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8227—Transmission mechanisms using springs
    • 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
    • B29C66/8324—Joining or pressing tools pivoting around 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/87—Auxiliary operations or devices
    • B29C66/874—Safety measures or devices
    • B29C66/8746—Detecting the absence of the articles to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2878—Securing closures on containers by heat-sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)

Description

Hochfrequenzschweißvorrichtung für thermoplastische Kunststoffolien, insbesondere zum Verschließen von Verpackungsbehältern Die Erfindung bezieht sich auf eine Vorrichtung zum Verschweißen thermoplastischer Kunststoffolien zwischen Metallelektroden im elektrischen Hochfrequenzfeld, insbesondere zum Verschließen von Verpackungsbehältern.High-frequency welding device for thermoplastic plastic films, in particular for closing packaging containers. The invention relates on a device for welding thermoplastic plastic films between Metal electrodes in an electrical high-frequency field, especially for sealing of packaging containers.

Bei automatischen Verpackungsmaschinen kann es vorkommen, daß infolge Störungen in der Füll- oder Zuführvorrichtung eine oder auch mehrere Packungen in der Förderreihe fehlen. Dies hat bei Verwendung von Hochfrequenzschweißvorrichtungen in derartigen Maschinen, bei denen gleichzeitig mehrere Schweißelektrodenpaare von einem Generator gespeist werden, den Nachteil zur Folge, daß bei einer fehlenden Packung die Betriebskapazität verändert wird. Dadurch wird die Anpassung des Generators verstimmt, so daß dessen Leistung absinkt und die Gefahr entsteht, daß die sich auf den übrigen Schweißstationen befindlichen Packungen nur mangelhaft verschweißt werden. With automatic packaging machines it can happen that as a result Malfunctions in the filling or feeding device one or more packs in the funding series are missing. This has when using high frequency welding equipment in such machines, in which several pairs of welding electrodes from fed by a generator, the disadvantage that in the absence of one Pack the operating capacity is changed. This will adjust the generator out of tune, so that his performance drops and the danger arises that the himself The packs located on the other welding stations are only inadequately welded will.

Um diese Nachteile zu beheben, wird gemäß dem wesentlichen Merkmal der vorliegenden Erfindung vorgeschlagen, jedem der an einem gemeinsamen Generator angeschlossenen Schweißelektrodenpaare einen Ersatzkondensator zuzuordnen, dessen Kapazität gleich der Betriebskapazität des betreffenden Schweißelektrodenpaares ist. In order to remedy these disadvantages, according to the essential feature of the present invention proposed each of the on a common generator to assign a replacement capacitor connected to the welding electrode pairs, whose Capacity equal to the operating capacity of the welding electrode pair concerned is.

Durch Einschalten dieses Ersatzkondensators bei fehlender Packung behält der Generator seine Betriebskapazität und damit seine volle Leistung, so daß die in den parallelgeschalteten Schweißstationen zu versiegelnden Packungen einwandfrei verschlossen werden. By switching on this replacement capacitor if the package is missing if the generator retains its operating capacity and thus its full output, see above that the packs to be sealed in the welding stations connected in parallel be properly closed.

Nachstehend wird die Erfindung für ein bevorzugtes Ausführungsbeispiel erläutert, das in der schematischen Zeichnung als Schweißvorrichtung mit mehreren Schweißstationen im Querschnitt dargestellt ist. The invention is described below for a preferred embodiment explained that in the schematic drawing as a welding device with several Welding stations is shown in cross section.

Die beispielsweise Schweißvorrichtung ist als Rundläufertyp nach Art der bekannten Schließmaschine für Packungen ausgebildet. Am Umfang einer umlaufenden Trommel 1 sind in gewissen Abständen je nach der Form der zu verschließenden Packungen in vorliegendem Fall z. B. ringförmige Aufnahmebecher 2 für runde Verpackungsbehälter B angeordnet. Diesen Bechern 2 sind an schwenkbar an der Trommel 1 vorgesehenen Armen 4 befestigte, dem Querschnitt der Becher 2 entsprechende, z. B. ringförmige Elemente 3 zugeordnet, die mittels dieser schwenkbaren Arme auf die Becher 2 hin bewegbar sind. Die Becher 2 und Ringe 3 bilden gleichzeitig die Schweißelektroden der Vorrichtung und sind deshalb iiber Leitungen 5 und 6, Kontaktsegmente 7 und 8, Schleifringe 9 und 10 sowie weitere Leitungen 11 und 12 mit einem Hochfrequenzgenerator 13 an sich bekannter Art verbunden. Die Schleifringe 9 und 10 erstrecken sich nur über einen bestimmten Teil des Umlaufwegs der Kontaktsegmente 7 und 8. so daß die Becher 2 und Ringe 3 auf dem unterbrochenen Umlaufweg nicht unter Spannung stehen. Auf diesem Teil des Umlaufweges erfolgt bei von den Bechern 2 abgeschwenkten Ringen 3 das Be- und Entladen der Becher 2 mit Verpackungsbehältern B und Deckeln D in beliebig geeigneter Weise. The welding device, for example, is a rotary type Type of known closing machine designed for packs. At the circumference of a circumferential Drum 1 are at certain intervals depending on the shape of the packages to be closed in the present case z. B. annular receptacle 2 for round packaging containers B arranged. These cups 2 are pivotably provided on the drum 1 Arms 4 attached, the cross section of the cup 2 corresponding, for. B. annular Elements 3 assigned to the cup 2 by means of these pivotable arms are movable. The cups 2 and rings 3 simultaneously form the welding electrodes of the device and are therefore via lines 5 and 6, contact segments 7 and 8, slip rings 9 and 10 and other lines 11 and 12 with a high frequency generator 13 connected per se known type. The slip rings 9 and 10 only extend over a certain part of the circulation path of the contact segments 7 and 8 so that the Cup 2 and rings 3 are not under tension on the interrupted circulation path. This part of the circulation path takes place with the rings pivoted away from the cups 2 3 the loading and unloading of the cups 2 with packaging containers B and lids D in in any suitable manner.

Das Abschwenken der Ringe 3 von den Bechern 2 wird über eine ortsfeste Ringkurve 20 gesteuert, gegen die mit einer Rolle 19 ein mit dem Arm 4 fest verbundener Hebel 18 durch die Zugkraft einer Feder 21 anliegt. The pivoting of the rings 3 from the cups 2 is via a stationary Ring curve 20 controlled, against which with a roller 19 a firmly connected to the arm 4 Lever 18 is applied by the tensile force of a spring 21.

Um zu vermeiden, daß bei fehlendem DeckelD und/oder bei fehlendem Verpackungsbehälter B zwischen den als Elektroden dienenden Bechern 2 und Ringen 3 ein Stromübergang eintritt, durch den diese Elektroden beschädigt werden könnten, ist an der Schweißvorrichtung auf jeder Schweißstation ein Taster 14 für die Packungen vorgesehen. Dieser im Ausführungsbeispiel mechanisch arbeitende Taster 14 ist über eine Stange 15 mit einem Winkelhebel 16 verbunden, dessen anderer Hebelarm hakenförmig ausgebildet ist. Bei fehlendem Behälterdeckel D verschwenkt der Tasterl4 den Winkelhebel 16 derart, daß der hakenförmige Hebelarm in einen Haken 17 des noch vom Becher 2 abgeschwenkten Ringes 3 bzw. dessen Arm 4 eingreift. Dadurch wird verhindert, daß der Ring 3 entsprechend dem Verlauf der Ringkurve 20 sich in Richtung auf den Becher 2 verschwenken kann. In order to avoid that if the cover D and / or the missing Packaging container B between the cups 2 and rings serving as electrodes 3 a current transfer occurs which could damage these electrodes, is a button 14 for the packs on the welding device on each welding station intended. This button 14, which operates mechanically in the exemplary embodiment, is over a rod 15 is connected to an angle lever 16, the other lever arm of which is hook-shaped is trained. If the container lid D is missing, the button 14 swivels the angle lever 16 such that the hook-shaped lever arm in a hook 17 of the still from the cup 2 pivoted ring 3 or its arm 4 engages. This prevents the ring 3 corresponding to the course of the ring curve 20 in the direction of the cup 2 can pivot.

Damit nun aber infolge der hierbei verminderter Betriebskapazität die Anpassung des Generators nicht verstimmt wird, ist den einzelnen Elektrodenpaaren 2, 3 je ein Ersatzkondensator zugeordnet, der in diesem Fall eingeschaltet wird. Dieser Ersatzkondensator dessen Kapazität der Betriebskapazität eines Elektrodenpaares entspricht, besteht beispielsweise aus zwei Platten 22 und 23, von denen die Platte 22 auf der Trommel 1 und die Platte 23 auf einer Verlängerung des Armes 4 über dessen Drehpunkt hinaus befestigt ist. In der vom Becher 2 abgeschwenkten Stellung des Ringes 3 sind die beiden Platten 22, 23 einander so weit genähert, daß die gewünschte Kapazität gebildet wird. Die Kondensatorplatten 22, 23 sind über geeignete Hochfrequenzkabel24, 25 mit den Leitungen 5, 6 verbunden. But now as a result of the reduced operating capacity the adaptation of the generator does not being upset is the individual Electrode pairs 2, 3 each assigned a replacement capacitor, which is switched on in this case will. This replacement capacitor has the capacity of the operating capacity of a pair of electrodes corresponds, for example, of two plates 22 and 23, of which the plate 22 on the drum 1 and the plate 23 on an extension of the arm 4 above it Pivot point is also attached. In the position of the swiveled away from the cup 2 Ring 3, the two plates 22, 23 are so close to each other that the desired Capacity is formed. The capacitor plates 22, 23 are connected via suitable high-frequency cables24, 25 connected to lines 5, 6.

Selbstverständlich ist die Erfindung nicht nur auf das dargestellte Ausführungsbeispiel beschränkt, sondern kann auch in anderer Weise ausgestaltet und anderen Packungsformen oder Betriebsbedingungen angepaßt sein bzw. bei anderen Maschinenanordnungen - angewandt werden. Auch kann die Kapazität des Ersatzkondensators auf unterschiedliche Werte einstellbar gewählt werden. Of course, the invention is not limited to what is shown Embodiment limited, but can also be designed in other ways and other forms of packaging or operating conditions, or with others Machine arrangements - are applied. Also the capacity of the replacement capacitor adjustable to different values.

Claims (5)

Patentansprüche: 1. Vorrichtung zum Verschweißen thermoplastischer Kunststoffolien zwischen Metallelektroden im elektrischen Hochfrequenzfeld, insbesondere zum Verschließen von Verpackungsbehältern aus Folien dieser Art, bei der mehrere Sätze von einander zugeordneten Schweißelektroden jeweils gleichzeitig zum Einsatz kommen, dadurch gekennzeichnet, daß jedem der an einem gemeinsamen Hochfrequenzgenerator (13) angeschlossenen, in Form von Becher und Ring ausgebildete Schweißelektrodensätze (2, 3) ein Ersatzkondensator (22, 23) zugeordnet ist, der bei fehlendem Verpackungsbehälter (B, D) an Stelle des betreffenden Schweißelektrodensatzes (2, 3) eingesetzt wird. Claims: 1. Device for welding thermoplastic Plastic films between metal electrodes in a high-frequency electrical field, in particular for closing packaging containers made of foils of this type, in which several Sets of mutually assigned welding electrodes are used simultaneously come, characterized in that each of the at a common high frequency generator (13) connected welding electrode sets designed in the form of a cup and ring (2, 3) a replacement capacitor (22, 23) is assigned which, if the packaging container is missing (B, D) is used in place of the relevant welding electrode set (2, 3). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Einsatz der Ersatzkondensatoren (22, 23) durch einen zugeordneten, die zugeführten und miteinander zu verschweißenden Teile (B, D) der Verpackungsbehälter registrierenden Taster (14) gesteuert ist, welcher bei einem vollständig oder teilweise fehlenden Behälter (B, D) den betreffenden Kondensator einschaltet. 2. Apparatus according to claim 1, characterized in that the insert of the replacement capacitors (22, 23) by an assigned, the supplied and with each other parts to be welded (B, D) of the packaging container registering buttons (14) is controlled, which in the case of a completely or partially missing container (B, D) switches on the capacitor in question. 3. Vorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die eine Elektrode (3) jedes Elektrodensatzes (2, 3) sowie die eine Platte (22) des Ersatzkondensators (22, 23) gemeinsam auf einem schwenkbaren Arm (4) der Vorrichtung angeordnet sind, der beim Entfernen der Elektroden (2, 3) voneinander die beiden Platten des Kondensators (22, 23) in ihre Betriebsstellung verbringt. 3. Device according to claims 1 and 2, characterized in that that one electrode (3) of each set of electrodes (2, 3) and one plate (22) of the replacement capacitor (22, 23) together on a pivotable arm (4) of the device are arranged, which when removing the electrodes (2, 3) from each other the two Spends plates of the capacitor (22, 23) in their operating position. 4. Vorrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Betriebskapazität des Ersatzkondensators (22, 23) gleich ist der Kapazität des zugeordneten Elektrodenpaares (2, 3) während einer Schweißung. 4. Device according to claims 1 to 3, characterized in that that the operating capacity of the replacement capacitor (22, 23) is equal to the capacity of the associated pair of electrodes (2, 3) during a weld. 5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Kapazität des Ersatzkondensators (22, 23) auf unterschiedliche Werte einstellbar ist. 5. Apparatus according to claim 4, characterized in that the capacitance of the replacement capacitor (22, 23) can be set to different values.
DEH41310A 1960-12-23 1960-12-23 High frequency welding device for thermoplastic plastic films, in particular for closing packaging containers Pending DE1256340B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEH41310A DE1256340B (en) 1960-12-23 1960-12-23 High frequency welding device for thermoplastic plastic films, in particular for closing packaging containers
CH1419861A CH393572A (en) 1960-12-23 1961-12-05 High-frequency welding device for thermoplastic plastic films from packaging containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH41310A DE1256340B (en) 1960-12-23 1960-12-23 High frequency welding device for thermoplastic plastic films, in particular for closing packaging containers

Publications (1)

Publication Number Publication Date
DE1256340B true DE1256340B (en) 1967-12-14

Family

ID=7154524

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH41310A Pending DE1256340B (en) 1960-12-23 1960-12-23 High frequency welding device for thermoplastic plastic films, in particular for closing packaging containers

Country Status (2)

Country Link
CH (1) CH393572A (en)
DE (1) DE1256340B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7309497B2 (en) 2000-08-24 2007-12-18 Schwarz Pharma Ag Injectable pharmaceutical composition for systematic administration of pharmacologically active ingredients

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7309497B2 (en) 2000-08-24 2007-12-18 Schwarz Pharma Ag Injectable pharmaceutical composition for systematic administration of pharmacologically active ingredients

Also Published As

Publication number Publication date
CH393572A (en) 1965-06-15

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