DE3338105A1 - Transverse sealing device - Google Patents

Transverse sealing device

Info

Publication number
DE3338105A1
DE3338105A1 DE19833338105 DE3338105A DE3338105A1 DE 3338105 A1 DE3338105 A1 DE 3338105A1 DE 19833338105 DE19833338105 DE 19833338105 DE 3338105 A DE3338105 A DE 3338105A DE 3338105 A1 DE3338105 A1 DE 3338105A1
Authority
DE
Germany
Prior art keywords
crank
welding
jaw
sealing
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19833338105
Other languages
German (de)
Inventor
Werner DDR 8021 Dresden Böhme
Gerhard Ddr 8103 Ottendorf-Okrilla Leuschner
Manfred DDR 8010 Dresden Woelk
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.)
Nagema VEB
Original Assignee
Nagema VEB
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 Nagema VEB filed Critical Nagema VEB
Publication of DE3338105A1 publication Critical patent/DE3338105A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • 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
    • B29C66/8222—Pinion or rack mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8223—Worm or spindle mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—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
    • B29C66/83—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
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • 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
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • 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
    • 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
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices
    • 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

Landscapes

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

Abstract

Transverse sealing device for bag forming, filling and sealing machines with two welding or sealing jaw supports arranged on cranks, parallel guides for the jaw supports and a control element which acts on the path of motion of the jaw supports. It is intended to improve the quality of the welding or sealing seam. The object of the invention is to cause the welding jaws to enter the packing means path planes at a steep angle and to optimise the effective time and the effective pressure during the welding process. The object is achieved by means of a control element, which is designed as crank slides assigned to both sides of the welding or sealing jaw supports. The crank slides are designed in this case as crank arms which are radially movable in the crank discs of the crank shafts and which can be displaced by means of cam discs which are arranged centrally in the axes of rotation of the crank shafts and with whose cam paths cam rollers arranged on the crank arms engage. <IMAGE>

Description

Querverschließvorricht ungCross locking device

Die Erfindung betrifft eine Querverschließvorrichtung für Schlauchbeutelmaschinen mit zwei an Kurbeln angeordneten Schweiß- oder Siegelbackenträgern, Parallelfülirungen für die Backenträger und einem die Bewegungsbahn der Backenträger beeinflussenden Steuerelement.The invention relates to a transverse closing device for tubular bag machines with two welding or sealing jaw carriers arranged on cranks, parallel fillings for the jaw carriers and one influencing the movement path of the jaw carriers Control.

sinne derartige Querverschließvorrichtung ist beispielsweise durch die DE-AS 11 76 049 bekannt geworden. Bei dieser bekannten Vorrichtung werden die Schweißbacken durch Kurbeln auf einer Kreisbahn bewegt, wobei eine Gleitführung vorgesehen ist, die die Schweißbacken so halten, daß sich die Wirkflächen stets gegenüberliegen. Die Kreisbahnen der Schweißbacken überdecken sich im Wirkbereich um ein bestimmtes Maß, damit eine genügend lange Schweißzeit entsteht. Die Schweißbacken sind federnd gelagert, damit sie im Wirkbereich nachgeben können und auch eine genugende Flächenpressung beim luerverschließprozeß entsteht.sense such a cross-locking device is for example through the DE-AS 11 76 049 became known. In this known device, the Welding jaws moved on a circular path by cranking, with a sliding guide is provided that hold the welding jaws so that the active surfaces are always opposite. The circular paths of the welding jaws overlap in the effective area by a certain amount so that the welding time is long enough. The welding jaws are resiliently mounted so that they can give way in the effective area and also a sufficient one Surface pressure arises during the porter locking process.

ITachteilig bei dieser Lösung ist, daß durch die reine Kreisbewegung eine relativ flache Eintauchphase in die Packmittelbahnen eintritt, was sich negativ auf de#n Packinittelverbrauch auswirkt. Dieser negative Effekt ist um so stärker, Je höher die zu verpackenden Güter sind. Deswegen muß die Kreisbahnüberdeckung entsprechend gering gehalten werden, was zu einer nicht immer ausreichenden Schweißzeit führt, vornehmlich bei der Verarbeitung stärkerer Folien. Um die Schweißzeit zu beeinflussen, wurde vorgeschlagen, die Schweißbacken durch Nockenscheiben so zu steuern, daß an der Wirkstelle ein annähernd rechteckiger Bewegungsverlauf eintritt (DE-OS 21 26 953).A disadvantage of this solution is that the pure circular motion a relatively shallow immersion phase occurs in the packaging webs, which is negative affects the consumption of packaging. This negative effect is all the stronger The higher the goods to be packed. Therefore, the circular path overlap must be appropriate are kept low, which leads to a welding time that is not always sufficient, mainly when processing thicker foils. To influence the welding time, it was proposed to control the welding jaws by cam discs so that on the point of action an approximate rectangular movement occurs (DE-OS 21 26 953).

Bei dieser Lösung kann die Wirkzeit optimal gestaltet werden, der Nachteil des flachen Eintauchens in die Packmittelbahnen bleibt aber bestehen.With this solution, the action time can be optimally designed However, the disadvantage of shallow immersion in the packaging webs remains.

Die Erfindung bezweckt, den Packmittelverbrauch beim Verpacken relativ hoher Güter in Folienschlauchbeutel zu verringern, bei gleichzeitiger Verbesserung der Schweiß- oder Siegelnahtqualität.The aim of the invention is to reduce the consumption of packaging material during packaging in a relative manner to reduce high goods in tubular film bags while at the same time improving the weld or seal seam quality.

Es besteht die Aufgabe, eine Vorrichtung anzugeben, bei der die Schweißbacken steiler in die Packmittelbahnebenen eintauchen, bei gleichzeitiger Optimierung der Wirkzeit und des Wirkdruckes mittels eines Steuerelementes.The object is to provide a device in which the welding jaws Dive steeper into the packaging track levels, while at the same time optimizing the Effective time and the effective pressure by means of a control element.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß das Steuerelement als den Schweiß- oder Siegelbackenträgern beidseitig zugeordnete Kurbelschieber ausgeführt ist.According to the invention the object is achieved in that the control element as crank slides assigned to both sides of the welding or sealing jaw carriers is executed.

Die Eurbelschieber sind als in den Kurbelscheiben der Kurbelwellen radial bewegliche Kurbelarme ausgeführt, die über zentrisch in den Drehachsen der Kurbelwellen angeordnete Kurvenscheiben, in deren Kurvenbahnen an den Kurbelarmen angeordnete Kurvenrollen eingreifen, verschiebbar sind.The Eurbel slides are as in the crank disks of the crankshafts run radially movable crank arms, which are centered in the axes of rotation of the Crankshafts arranged cam disks, in their cam tracks on the crank arms arranged cam rollers engage, are displaceable.

Die Kurvenrollen der Kurbelschieber sind an den Enden der drehbar in den Enden der Kurbelarm gelagerten Backenträger angeordnet.The cam rollers of the crank slide are rotatable at the ends of the arranged in the ends of the crank arm mounted jaw carrier.

Die Kurvenscheiben des oberen Kurbelschiebers sind höhenverstellbar ausgeführt. Die Backenträger sind in an sich bekanne Parallelführungen gelagert und bestehen aus einer vertikalen ruhr#ungsstange, die auf einer waagerecht im Maschinengestell montierten Gleitstange horizontal verschiebbar gelagert ist, wobei die Backenträger vertikal verschiebbar auf der Pu~hrungsstange gelagert sind.The cams of the upper crank slide are height adjustable executed. The jaw carriers are mounted in parallel guides known per se and consist of a vertical agitator rod that is positioned horizontally in the machine frame mounted slide rod is horizontally displaceable, with the jaw carrier are mounted vertically displaceable on the guide rod.

Bei dieser Lösung kann durch die Gestaltung der Kurvenbahn Jeder gewünschte BewegungsablauB der Schweiß- oder Siegelbacken erreicht werden, womit sowohl die Eintauchbahn wie auch die Wirkzeit optimal gestaltet werden können.With this solution, everyone can use the design of the curved path Blue movement of the welding or sealing jaws can be achieved, with which both the Immersion track as well as the action time can be optimally designed.

Die BrSindung soll nacbstehend an einem Ausführungsbeispiel näher erliutert werden.The connection is to be described in more detail using an exemplary embodiment be explained.

In der zugehörigen Zeichnung zeigen: Fig. 1 den Schnitt einer erfindungsgemäßen Querverschließvorrichtung Fig. 2 den Schnitt A-A nach Fig, 1 Fig. 3 das Bewegungsschema der Backenträger bei entsprechend gestalteter Kurvenbahn gegenüber einer Kreisbahnbewegung Die Querverschießvorrichtung besteht aus einem Rahmen 1, in dem beidseitig Kurbelwellenpaare 2 und 3 gelagert sind. Auf die Drehachsen der Kurbelwellen sind Zahnräder 4 aufgekeilt, die paarweise miteinander in Eingriff stehen. In Eurbelscheiben 5 der Kurbelwellen 2; 3 sind radial verschiebbar die Kurbelarm 6 der Kurbeiwellen 2; 3 angeordnet. In die äußeren Enden der Kurbelarm 6 sind Backenträger 7 und 8 zur Au£hahme von Schweiß- oder Siegelbacken drehbar angeordnet. An den Enden der Backenträger sind Kurvenrollen 9 montiert, die in der Nutkurve von zentrisch in der Drehachse der Kurbelwellen 2; 3 liegenden Steuerkurven 10 laufen. Die unteren Steuerkurven sind mittels Gummifederelementen 11 am Rahmen 1 befestigt. Die oberen Steuerkurven sind an im Rahmen 1 gelagerten Spindeln 12, zur Einstellung eines bestimmten Jchweißdruckes höhenverstellbar angeordnet. Sber eine SteIlwelle 13 und Kegelradpaaren 14 können die Spindeln 12 gedreht und somit die oberen Steuerkurven 10 in der Höhe verstellt werden.The accompanying drawings show: FIG. 1 the section of an inventive Cross-locking device Fig. 2 the section A-A according to Fig. 1 Fig. 3 the movement diagram the jaw carrier with an appropriately designed curved path compared to a circular path movement The transverse firing device consists of a frame 1 in which crankshaft pairs on both sides 2 and 3 are stored. Gears 4 are keyed onto the axes of rotation of the crankshafts, which are in engagement with one another in pairs. In Eurbel disks 5 of the crankshafts 2; 3, the crank arms 6 of the crankshafts 2 are radially displaceable; 3 arranged. In the outer ends of the crank arm 6 are jaw carriers 7 and 8 for receiving Welding or sealing jaws arranged to be rotatable. At the ends of the jaw carriers are Cam rollers 9 mounted, which are centered in the groove curve in the axis of rotation of the Crankshafts 2; 3 lying control cams 10 run. The lower control curves are attached to the frame 1 by means of rubber spring elements 11. The upper control curves are on spindles 12 mounted in frame 1, for setting a certain welding pressure arranged adjustable in height. Sber a SteIlwelle 13 and bevel gear pairs 14 can the spindles 12 rotated and thus the upper control cams 10 adjusted in height will.

Im unteren Teil des Rahmens 1 ist eine Antriebswelle 15 gelagert, die beidseitig mit Stirnrädern 16 bestückt ist, welche mit den beiden unteren Zahnrädern 4 für den Antrieb der Kurbelwellen 2 kämmen. Zur genauen gegenüberliegenden Iagefixierung der Backenträger 7; 8 ist in bekannter Weise eine Geradführung 17 vorgesehen.In the lower part of the frame 1, a drive shaft 15 is mounted, which is equipped on both sides with spur gears 16, which with the two lower gears 4 mesh to drive the crankshafts 2. For the exact opposite position fixation the jaw carrier 7; 8 a straight guide 17 is provided in a known manner.

Der Antrieb der Querverschließvorrichtung erfolgt durch ein bekanntes, nicht dargestelltes Ungleichförmigkeitsgetriebe.The transverse closing device is driven by a known, Non-uniformity gear, not shown.

Von diesem wird die Antriebswelle 15 angetrieben. Uber die Zahnräder 16 und 4 werden die Kurbeiwellenpaare 2 und 3 in Drehung versetzt, womit die in den Kurbelarmen 6 gelagerten Backenträger in Bewegung versetzt werden. Üblicherweise bewegen sich die Backenträger auf einer Kreisbahn aufeinander zu, wie im oberen Teil der Fig. 3 dargestellt ist.The drive shaft 15 is driven by this. About the gears 16 and 4, the crankshaft pairs 2 and 3 are set in rotation, so that the in the crank arms 6 mounted jaw carriers are set in motion. Usually move the jaw carriers approach one another on a circular path, as shown in the upper part of FIG.

Durch die Gestaltung der Kurvenbahn der Steuerkurven 10 wird die Bewegungsbahn der Backenträger jedoch in eine etwa elliptische Bahnbewegung umgeformt, wie im unteren Teil der Fig. 3 zu sehen ist.Through the design of the cam path of the control cams 10, the movement path the jaw carrier, however, reshaped into an approximately elliptical path movement, as in lower part of Fig. 3 can be seen.

Durch die in den Nutkurven laufenden Kurvenrollen 9 der Backenträger werden die Eurbelarme 6 in den Kurbelscheiben 5 verschoben, so daß sich die Länge des Kurbelarmes entsprechend ändert. Beim Zusammenlaufen der Backenträger 8 wird eine zusätzliche Verschiebung nach innen vorgenommen, womit ein schnelleres Eintauchen der Backen in die Packmittelbahnebene eintritt. Der Eintauchwinkel ct ist dadurch kleiner als bei der Bewegung auf einer Kreisbahn. Die Packgüter können dadurch dichter zugeführt werden, was sich günstig auf den Packmittelverbrauch auswirkt. Beim Auseinanderlaufen der Backen werden die Kurbelarm 6 nach außen verschoben, womit die Backen schneller aus dem Packungsbereich auftauchen. Hierdurch wird eine Kollision der Backen mit der Packung vermieten Bei einer Bewegung auf einer Kreisbahn müßte diese Kollisionsgefahr durch weitere maschinenbautechnische Maßnahmen beseitigt werden.Through the cam rollers 9 of the jaw carriers running in the groove cams the Eurbelarme 6 are moved in the crank discs 5, so that the length of the crank arm changes accordingly. When converging the jaw carrier 8 is made an additional shift inwards, with which a faster immersion the jaw enters the packaging material track level. The immersion angle ct is thereby smaller than when moving on a circular path. The packaged goods can be denser as a result be supplied, which has a positive effect on the consumption of packaging. When running apart the jaws are moved outwards by the crank arm 6, making the jaws faster emerge from the packing area. This will cause the jaws to collide with of the pack. When moving on a circular path, there should be a risk of collision can be eliminated by further mechanical engineering measures.

Beide Bewegungsabläufe sind als Gegenüberstellung in Fig. 3 dargestellt.Both movements are shown as a comparison in FIG. 3.

Claims (5)

Patentanspruch 1. Querverschließvorrichtung für Schlauchbeutelmaschinen mit zwei an kurbeln angeordneten Schweiß- oder Siegelbackenträgern, Parallelführungen für die Backentrager und einem die Bewegungsbahn der Backenträger beeinflussenden Steuerelement, dadurch gekennzeichnet, daß das Steuerelement als den Backenträgern (7) beidseitig zugeordnete Kurbelschieber (6) ausgeführt ist.Claim 1. Cross-closing device for tubular bag machines with two welding or sealing jaw carriers arranged on cranks, parallel guides for the jaw carrier and one influencing the movement path of the jaw carrier Control element, characterized in that the control element is used as the jaw carriers (7) crank slide (6) assigned on both sides is executed. 2. Querverschließvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kurbelschieber als in den Kurbelscheiben (5) der Kurbeiwellen (2; 3) radial bewegliche Kurbelarme (6) ausgeführt sind, die über zentrisch in den Drehachsen der Kurbelwellen (2; 3) angeordnete Steuerkurven (10), in deren Kurvenbahnen an den Kurbelarmen (6) angeordnete Kurvenrollen (9) eingreifen, verschiebbar sind.2. Cross closing device according to claim 1, characterized in that that the crank slide than in the crank disks (5) of the crankshafts (2; 3) radially movable crank arms (6) are executed, which are centered in the axes of rotation of the crankshafts (2; 3) arranged control cams (10), in their cam tracks the crank arms (6) arranged cam rollers (9) engage, are displaceable. 3. Querverschließ#rorrichtung nach Ansprüchen 1 und 2, dadurch gekennzeichnet# daß die Kurvenrollen (9) der Kurbelschieber an den Enden der drehbar in den äußeren Enden der Kurbelarme gelagerten Backenträger (7) angeordnet sind.3. Cross closure device according to claims 1 and 2, characterized in that that the cam rollers (9) of the crank slide at the ends of the rotatable in the outer Ends of the crank arms mounted jaw carrier (7) are arranged. 4. Querverschließvorrichtu#ach Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Steuerkurven (10) des oberen Kurbelschiebers höhenverstellbar ausgeführt sind.4. Cross closing device according to claims 1 and 2, characterized in that that the control cams (10) of the upper crank slide are designed to be adjustable in height are. 5. Querverschließvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Parallelführung aus einer vertikalen FUhrungsstange besteht, die auf einer waagerecht im Maschinengestell montierten Gleitstange horizontal verschiebbar gelagert ist und daß die Backenträger vertikal verschiebbar auf der Führungsstange gelagert sind.5. Cross closing device according to claim 1, characterized in that that the parallel guide consists of a vertical guide rod on a Sliding rod mounted horizontally in the machine frame so that it can be moved horizontally is and that the jaw carrier is mounted vertically displaceably on the guide rod are.
DE19833338105 1983-01-31 1983-10-20 Transverse sealing device Withdrawn DE3338105A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD83247578A DD213404A1 (en) 1983-01-31 1983-01-31 QUERVERSCHLIESSVORRICHTUNG

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DE (1) DE3338105A1 (en)
IT (1) IT1177517B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545228A1 (en) * 1985-12-20 1987-07-02 Rovema Gmbh PACKING MACHINE FOR THE PRODUCTION, FILLING AND SEALING OF BAGS
EP0290105A2 (en) * 1987-05-07 1988-11-09 P.F.M. S.p.A. Device for closing envelopes made of plastic or the like
DE4326233A1 (en) * 1993-08-05 1995-02-09 Luebbers Maschinen Gmbh Drive for an apparatus for the closing and severance of a packaging foil and the like on packaging machines
EP0715095A3 (en) * 1994-12-01 1996-08-28 Shikoku Kakoki Co Ltd Device for reducing torque variations for use in drive apparatus
WO2021058113A1 (en) * 2019-09-27 2021-04-01 Loesch Verpackungstechnik Gmbh Transverse-sealing apparatus for a tubular-bag packaging machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176049B (en) * 1960-02-11 1964-08-13 Hayssen Mfg Company Automatic packaging machine for the production of tubular packs
DE1511728A1 (en) * 1965-03-17 1969-07-31 Syozo Omori Method and device for the automatic packaging of solids
DE2126953A1 (en) * 1970-06-08 1971-12-16 Sig Schweiz Industrieges Device for connecting parallel tracks or opposing wall parts of a hose by transversal weld seams

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176049B (en) * 1960-02-11 1964-08-13 Hayssen Mfg Company Automatic packaging machine for the production of tubular packs
DE1511728A1 (en) * 1965-03-17 1969-07-31 Syozo Omori Method and device for the automatic packaging of solids
DE2126953A1 (en) * 1970-06-08 1971-12-16 Sig Schweiz Industrieges Device for connecting parallel tracks or opposing wall parts of a hose by transversal weld seams

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545228A1 (en) * 1985-12-20 1987-07-02 Rovema Gmbh PACKING MACHINE FOR THE PRODUCTION, FILLING AND SEALING OF BAGS
EP0290105A2 (en) * 1987-05-07 1988-11-09 P.F.M. S.p.A. Device for closing envelopes made of plastic or the like
EP0290105A3 (en) * 1987-05-07 1989-07-26 P.F.M. S.P.A. Device for closing envelopes made of plastic or the like
DE4326233A1 (en) * 1993-08-05 1995-02-09 Luebbers Maschinen Gmbh Drive for an apparatus for the closing and severance of a packaging foil and the like on packaging machines
EP0715095A3 (en) * 1994-12-01 1996-08-28 Shikoku Kakoki Co Ltd Device for reducing torque variations for use in drive apparatus
US5813281A (en) * 1994-12-01 1998-09-29 Shikoku Kakoki Co., Ltd. Device for reducing torque variations for use in drive apparatus
WO2021058113A1 (en) * 2019-09-27 2021-04-01 Loesch Verpackungstechnik Gmbh Transverse-sealing apparatus for a tubular-bag packaging machine

Also Published As

Publication number Publication date
IT1177517B (en) 1987-08-26
DD213404A1 (en) 1984-09-12
IT8447607A0 (en) 1984-01-27

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