DE1586328A1 - Method for relieving the cross weld seam - Google Patents

Method for relieving the cross weld seam

Info

Publication number
DE1586328A1
DE1586328A1 DE19671586328 DE1586328A DE1586328A1 DE 1586328 A1 DE1586328 A1 DE 1586328A1 DE 19671586328 DE19671586328 DE 19671586328 DE 1586328 A DE1586328 A DE 1586328A DE 1586328 A1 DE1586328 A1 DE 1586328A1
Authority
DE
Germany
Prior art keywords
filling pipe
filling
tubular bag
seam
disc
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
DE19671586328
Other languages
German (de)
Inventor
Heinfrid Paetzelt
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.)
VERPACKUNGS und SCHOKOLADENMAS
Original Assignee
VERPACKUNGS und SCHOKOLADENMAS
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 VERPACKUNGS und SCHOKOLADENMAS filed Critical VERPACKUNGS und SCHOKOLADENMAS
Publication of DE1586328A1 publication Critical patent/DE1586328A1/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
    • B65B51/26—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
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only 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
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/222—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7433—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a wire
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • 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
    • B29C66/40—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
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—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
    • 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
    • B65B51/32—Cooling, or cooling and pressing, package closures after heat-sealing
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion

Description

Verfahren zum Entlasten Die Erfindung betrifft ein Verfahren zum Entlasten der querschweißnaht nach Aufhebung des Preßdruckes der Quersiegelwerkzeuge in einer Schlauchbeutelfüllmaschine, bei der der Packstoff über eine Formschulter zu einem Schlauch geformt und das Verpackungsgut über ein in die Formschulter ragendes Füllrohr eingebracht wird. Method for relieving the invention relates to a method for Relief of the cross weld seam after releasing the pressure of the cross sealing tools in a tubular bag filling machine in which the packaging material is placed over a forming shoulder Shaped into a tube and the packaged goods over a protruding into the molded shoulder Filling tube is introduced.

Die Leistung einer Schlauchbeutelmaschine ist hauptsächlich von der Zeit abhängig, die für das Herstellen der Querschweißnaht benötigt wird. Für das Herstellen der Querschweißnaht ist nicht nur die Zeit für den Schweißvorgang, sondern auch die Zeit für das Kühlen der Querschweißnaht inbegriffen, da die frische Schweißnaht noch nicht sofort belastet werden kann.The performance of a form, fill and seal machine is mainly dependent on the Time that is required to produce the transverse weld seam depends on the time. For the Making the cross weld is not just the time for the welding process, but also includes the time for cooling the cross weld, since the fresh weld cannot be charged immediately.

Die bekannten QRernahtschweiBvarrichtungen weisen daher mechanische Kühlelemente auf, um die Querschweißnaht abzukühlen und damit eher belasten zu können. Der Wirkungsef fekt dieser mechanischen Kühlelemente ist daher relativ klein, da die Abstrahlwärme der Schweißwerkzeuge die Temperatur dieser Elemente allmählich steigert. (DAS 1 187 980, England 835 306) Es ist allgemein bekannt, in Beuteln ein Vakuum zu erzeugen, um das Verpackungsgut gegen Verderb zu schützen. Im besonderen ist auch ein Verfahren bekannt, bei dem an einer Schlauchbeutelfüllmaschine im Schlauch während des Querverschließens oder unmittelbar vor der Beendigung des Schließvorganges, wie an sich zur Unterdruckerzeugung bekannt ist, ein oberhalb der Verschlußstelle beginnender Druckluftstrahl in Richtung der aus dem Beutel abzusaugenden I£t erzeugt wird. Mit diesem Verfahren ist es Jedoch nur möglich, die überschüssige Luft aus dem Beutel zu bringen.The known seam welding devices therefore have mechanical Cooling elements on in order to cool down the cross weld seam and thus to be able to load it more. The effect of these mechanical cooling elements is therefore relatively small because The heat radiated from the welding tools gradually increases the temperature of these elements increases. (DAS 1 187 980, England 835 306) It is commonly known in pouches to create a vacuum to protect the packaged goods against spoilage. In particular a method is also known in which on a tubular bag filling machine in the tube during the transverse closing or immediately before the termination of the Closing process, as is known per se for generating negative pressure, one above the locking point incipient jet of compressed air is generated in the direction of the I £ t to be sucked out of the bag will. However, with this procedure it is only possible to remove the excess air to bring to the bag.

Bekannt ist weiterhin ein Füllrohr an derartigen Maschinen, das am unteren nde durch eine Klappe verschließbar ist Dieses Füllrohr ist von einem Ringraum umgeben, der durch ein weiteres Rohr, über das die Folienbahn geführt ist, begrenzt wird. Dieser Ringraum ist oben abgeschlossen und steht mit einer Vakuumquelle in Verbindung.Also known is a filling pipe on machines of this type, which is on The lower end can be closed by a flap. This filling tube has an annular space surrounded, which is limited by another tube over which the film web is guided will. This annulus is closed at the top and is connected to a vacuum source Link.

Mit dieser Vorrichtung wird erreicht, daß das Verpackungsgut in dosierter Form sich am unteren Ende des Füllrohres sammeln kann, um dann nach Öffnung der erwähnten Verschlußklappe nur noch einen kurzen Faliweg in den Schlauchbeutel hinein zurückzulegen. Eine gewisse Entlastung der Querschweißnaht wird durch die geringe Fallhöhe zwar erreicht, das ganze dient aber mehr dazu, die Staubbildung durch Absaugen herabzusetzen, damit keine Staubpartikel zwischen die Querschweißnaht gelangen. (GM 1 861 947) Die Erfindung bezweckt, die Leistung der Schleuchbeutelmaschine zu steigern.With this device it is achieved that the packaged goods in dosed Form can collect at the lower end of the filling tube, and then after opening the mentioned closure flap only a short Faliweg into the tubular bag put back. A certain relief of the cross weld seam is due to the low The height of the fall has been reached, but the whole thing serves more to prevent the formation of dust through suction reduce so that no dust particles get between the transverse weld seam. (GM 1 861 947) The invention aims to improve the performance of the bag making machine increase.

Die Aufgabe der Erfindung besteht darin, die Querschweißnaht so zu entlasten, daß auf eine Kühlung durch mechanische Teile verzichtet werden kann.The object of the invention is to make the transverse weld seam so relieve the fact that cooling by mechanical parts can be dispensed with.

Dies wird nach der Erfindung dadurch erreicht, daß mit Beginn des Öffnungsvorganges bis maximal der Einleitung des Schließvorganges der Quersiegelwerkzeuge in dem halbfertigen Beutel ein Vakuum erzeugt wird. Unter diesen im halbfertigen Beutel erzeugten atmosphärischen 3edingungen bleibt der von den mechanischen Teilen der Siegelwerkzeuge entlastete Rand der Bodennaht in seiner lage eine gewisse, zur Kühlung genügende Zeit @chalten. Das Vakuum verhindert ein sofortiges Nachrutschen des Verpackungsgutes bis auf die frische Bodennaht. Dieses Nachrutschen bis auf die Bodennaht ist zeitlich von der Art und Menge des Verpackungsgutes abhängig und kann zweckmäßig durch die Dauer des Vakuums dem Verpackungsgut angepaßt werden.This is achieved according to the invention in that at the beginning of the Opening process up to a maximum of the initiation of the closing process of the cross sealing tools a vacuum is created in the semi-finished bag. Among these in the half-finished The atmospheric conditions created by the bag remain that of the mechanical parts the sealing tools relieved the edge of the bottom seam in its location a certain amount of pressure @Switch cooling enough time. The vacuum prevents immediate slipping of the packaged goods except for the fresh bottom seam. This slipping down to the time of the bottom seam depends on the type and quantity of the packaged goods and can expediently be adapted to the packaged goods by the duration of the vacuum.

In dieser kurzen Zeit ist die Eodennaht soweit abgekühlt, daß es nicht mehf zu einem lnfreißen des gefiiilten Beutels kommen kann, wenn die Quersiegelwerkzeuge auseinandergehen.In this short time the suture has cooled down enough that it has not The filled bag may more often tear if the transverse sealing tools diverge.

Diese Art des Entlastens der Bodennaht kann vorteilhaft für eine Leistungssteigerung der Füllmaschine genutzt werden, da während der Zeit des Entlastens der Quersiegelnaht, in der die Abkühlung stattfindet, ii Gegensatz zu Quersiegelwerkzeugen mit Kühlelementen, die Quersiegelwerkzeuge sich bereits wieder öffnen können. Die Vorrichtung zur Durchführung dieses Verfahrens ist dadurch gekennzeichnet, daß in der Wandung des Füllrohres ein bis in den Innenraum des Füllrohres verlaufendes Absaugrohr und iiber dem PiLnrohr eine in Arbeitsstellung die Füllöffnung des Füllrohres abdeckende Scheibe schwenkbar angeordnet ist. Diese Vorrichtung gestattet bei geringstem aufwand eine sichere Arbeitsweise der Maschine nach dem beschriebenen Verfahren.This way of relieving the floor seam can be beneficial for an increase in performance of the filling machine, because during the time of relieving the transverse sealing seam, in which the cooling takes place, ii in contrast to cross-sealing tools with cooling elements, the cross sealing tools can already open again. The device for implementation this method is characterized in that in the wall of the filling pipe a suction pipe extending into the interior of the filling pipe and over the pipe one in the working position, the filling opening of the filling tube covering Disc is pivotably arranged. This device allows with very little effort a safe operation of the machine according to the described procedure.

Ein Vorteil der Erfindung ist auch darin zu sehen, daß die Bodennaht unmittelbar nach Fertigstellung der Querneht nicht von mechanischen Kühlteilen umgeben ist. Dadurch kann nach einem weiteren Merkmal der windung in Hohe der Quersiegelwerkzeuge zusätzlich eine zu der Bodennaht gerichtete Kühlluftdüse angeordnet werden. Diese Kühlluftdüse bringt einen Kühlluftstrom an die Quernaht und beschleunigt somit das Abkühlen derselben. Diese zusätzliehe Kühlwirkung kann vorteilhaft zu einer Leistungssteigerung der Abfüllmaschine benutzt werden, da die Zeitspanne von dei Herstellen der Querschweißnaht bis zum Belasten derselben klein gehalten werden kann.An advantage of the invention can also be seen in the fact that the bottom seam Immediately after completion of the cross, not surrounded by mechanical cooling parts is. As a result, according to a further feature, the curl at the height of the transverse sealing tools a cooling air nozzle directed towards the bottom seam can also be arranged. These Cooling air nozzle brings a flow of cooling air to the cross seam and thus accelerates the process Cooling them down. This additional cooling effect can advantageously lead to an increase in performance of the filling machine, since the length of time from the production of the transverse weld seam can be kept small up to the loading of the same.

In der Zeichnung ist die Erfindung an einem Ausführungsbeispiel erläutert.In the drawing, the invention is explained using an exemplary embodiment.

Es zeigen Fig. 1: eine schematische Seitenansich Fig. 2: die Quersiegelwerkzeuge in Arbeitsstellung Fig. 3: wie vor, in geöffneter Stellung. in der Pig. 1 ist eine Schlauchbeutelfüllmaschine schematisch dargestellt. Die Schlauchbeutelfüllmaschine besteht im wesentlichen aus einem Fülltrichter 1, der mit einem Füllrohr 2 über einer formschulter 3 angeordnet ist. Über dies Formschulter 3 ist eine Folienbahn 4 gerührt, so daß ein vertikaler Schlauch entsteht. Die Folienbahn 4 ist auf einer Vorratsrolle 5 bevorratet und vor der Formschulter 3 noch über einer Transportrolle 6 geführt. Unterhalb der Formschulter 3 befindet sich eine Schweiß- und Transportzange 7 und seitlich ein Schweißbacken 8 für die Längsnaht. Die Schweiß- und Transportzange 7 besteht aus zwei gabelförmigen Klemmbacken 7a und 7b, zwischen denen mittig ein horizontaler Schweißdraht 9 angeordnet ist. Die Schweiß- und Transportzange 7 ist an nicht mit dargestellten Antriebselementen gelagert, die einen in der linie a gezeigten Bewegungsablauf der Elemmz backen 7a und 7b gewährleisten.1 shows a schematic side view. FIG. 2 shows the transverse sealing tools in the working position Fig. 3: as before, in the open position. in the Pig. 1 is a Tubular bag filling machine shown schematically. The tubular bag filling machine consists essentially of a hopper 1, which is connected to a filling tube 2 over a form shoulder 3 is arranged. Over this forming shoulder 3 is a sheet of film 4 stirred so that a vertical tube is formed. The film web 4 is on a Supply roll 5 in stock and still above the forming shoulder 3 a transport roller 6 out. Below the form shoulder 3 is a Welding and transport tongs 7 and a side welding jaw 8 for the longitudinal seam. The welding and transport pliers 7 consists of two fork-shaped clamping jaws 7a and 7b, between which a horizontal welding wire 9 is arranged in the middle. the Welding and transport pliers 7 is mounted on drive elements not shown, which ensure a sequence of movements of the Elemmz jaws 7a and 7b shown in line a.

Zur Durchführung des erfindungsgemäßen Verfahrens sind an der Schlauchbeutelfüllmaschine noch einige weitere Teile angeordnet. In der Wandung des Füllrohres 2 ist ein bis in den Innenraum desselben verlaufendes Absaugrohr 10 und über dem llrohr 2 eine in Arbeitsstellung, die Füllöffnung desselben abdeckende Scheibe 11 angeordnet. Diese Scheibe 11 ist an einem Hebelarm 12 befestigt, der an einer vertikalen Stange schwenkbar gelagert ist. Ein nicht mit dargestellter mechanischer Antrieb verbindet diese mit einem Nocken auf der ebenfalls nicht mit dargestellten Eintourenwelle. Vervollständigt wird die Vorrichtung durch eine Kühlluftdüse 13, die in Höhe der Transport- und Schweißzange 7 derart angeordnet ist, daß ihre Öffnung zu der Bodennaht gerichtet ist. Diese Kühlluftdüse 13 ist mit einem Gebläse 14 verbunden. Die Wirkungsweise der Vorrichtung nach den erfindungsgemäßen Vorfahron wird in folgenden beschrieben: Nachdem die Schweiß- und Transportzange 7 aus ihrer untersten gestrichelt dargestellten Endstellung in die oberste Stellung zurückgekehrt ist, bewegen sich die Klemmbacken 7a und 7b zueinander, bis diese den Folienschlauch fest zusammengepreßt haben. Vorher wurde bereits mit Hilfe des Schweißbackens 8 die Längsnaht geschweißt. Von dieser Stellung der Klemmbacken 7 an, soll innerhalb eines Arbeitstaktes der Schlauchbeutelfüllmaschine die erfindungsgemäße Entlastung der Querschweißnaht beschrieben werden. Die Scheibe 12 befindet sich hier noch in ihrer unwirksamen Stellung, d. h. sie ist aus der Ebene der Füllöffnung geschwenkt.The tubular bag filling machine is used to carry out the method according to the invention arranged a few more parts. In the wall of the filling pipe 2 is a to in the interior of the same extending suction pipe 10 and above the llrohr 2 a in the working position, the filling opening of the same covering disk 11 is arranged. This disc 11 is attached to a lever arm 12 on a vertical rod is pivotably mounted. A mechanical drive, not shown, connects this with a cam on the single-turn shaft, also not shown. The device is completed by a cooling air nozzle 13, which is in the amount of Transport and welding tongs 7 is arranged such that their opening to the bottom seam is directed. This cooling air nozzle 13 is connected to a fan 14. The mode of action the device according to the ancestors according to the invention is described in the following: After this the welding and transport pliers 7 from its lowest shown in dashed lines End position has returned to the top position, move the jaws 7a and 7b to each other until they have firmly compressed the film tube. Before the longitudinal seam has already been welded with the aid of the welding jaw 8. Of this Position of the clamping jaws 7 should be within one work cycle of the tubular bag filling machine the relief according to the invention of the transverse weld seam will be described. The disc 12 is still in its ineffective position here, i.e. H. she is from the Pivoted level of the filling opening.

Zu diesem Zeitpunkt kann nun mit dem Schweißen und Trennen der Querschweißnaht begonnen werden. Zu diesem Zweck kommt der beheizte Schweißdraht 9 zur Wirkung. Das in den Schlauch eingebrachte Verpackungsgut, beispielsweise Bonbons B, belastet die frische Quernaht vorerst nicht, da die lRlemmbakkern 7a und 7b die beiden Folien zusammenpressen. Während dieser Zeit bewegen sich die Klemmbacken 7a und 7b, die Folie noch zwischen sich eingepreßt, bis in ihre unterste Stellung.At this point, you can start welding and cutting the transverse weld to be started. The heated welding wire 9 comes into effect for this purpose. The packaged goods brought into the tube, for example sweets B, are loaded the fresh transverse seam for the time being, because the lRlemmbakkern 7a and 7b the two foils press together. During this time, the jaws 7a and 7b move, the Foil still pressed between you, down to its lowest position.

Durch diese Bewegung der Schweiß- und Transportzange 7 wird gleichzeitig eine neue Beutellänge über die Formschulter 3 gezogen. Mit Boginm des Öffnungsvorganges der Klemmbacken 7a und 7b in dem halbfertigen Beutel wird ein Vakuum erzeugt.This movement of the welding and transport tongs 7 is simultaneously A new bag length is drawn over the forming shoulder 3. With boginm of the opening process the clamping jaws 7a and 7b in the semi-finished bag a vacuum is created.

Dieses Vakuum kann maximal bis zur Einleitung des Schließvorgenges aufrecht erhalten werden. Dieses Vakuum in dem halbfertigen Boutel wird dadurch geschafft, daß über den nicht mit dargestellten Nocken auf der Eintourenwelle und dem mechanischen Antrieb die Scheibe 11 in ihre wirksame Stellung gebracht wird. Die Scheibe 11 deckt die P(illöfftung des Füllrohres 2 vollständig ab und über eine nicht mit dargestellte Vakuumquelle, die über das absaugrohr 10 mit dem Füllrohr 2 verbunden ist, entsteht ein Vakuum, In welcher Weie dieses Vakuum die Bodennaht nach dem öffnen entlastet, zeigt besonders die Fig. 3. Die Bonbans sind gehindert, nach unten auf die Bodennaht aufzutreffen, da die Folie sich eng an den Inhalt anlegt. Der von den Klemmbacken 7a und 7b freigegebene Hand bleibt erstmal erhalten. Der untere, fertige und gefüllte Beutel fällt nach dem öffnen der Klemmbacken 7a und 7b nach unten ab. Be Kühlung der Kopfnaht dieses Beutels ist dabei nicht notwendig, da dort eine große Belastung nicht zu erwarten ist.This vacuum can be applied until the closing process is initiated be maintained. This creates a vacuum in the half-finished boutel managed that about not with illustrated cams on the single-turn shaft and the mechanical drive, the disk 11 is brought into its operative position. The disk 11 covers the P (illöfftung of the filling pipe 2 completely and over a vacuum source not shown, which is connected via the suction pipe 10 to the filling pipe 2 is connected, a vacuum is created, in which way this vacuum the bottom seam relieved after opening, Fig. 3 particularly shows. The bonbans are prevented, down to hit the bottom seam, as the film fits tightly to the content. The hand released by the clamping jaws 7a and 7b is retained for the time being. Of the lower, finished and filled bag falls after opening the clamping jaws 7a and 7b downwards. When cooling the head seam of this bag is not necessary, since a great burden is not to be expected there.

Mit dem Öffnen der Klemmbacken 7a und 7b liegt die Bodennaht frei, so daß die aus der Düse 13 ausströmende Kühlluft voll auf die Bodennaht auftrifft und somit eine noch zusätzliche Kühlwirkung erzeugt. Bevor nun die Klemmbacken 7a und 7b in ihrer oberen Stelung wieder zusammengchen, um die nächste Quernaht herstellen in können, wird die Scheibe 12 wieder aus dem Bereich der Füllöffnung gebracht, wodurch das Vakuum sofort aufgehoben wird. Dies ist notwendig, da der Beutel wieder gestrafft werden nuß, um eine einwandfreie Quernacht für den nächsten Beutel zu erhalten.When the clamping jaws 7a and 7b are opened, the bottom seam is exposed, so that the cooling air flowing out of the nozzle 13 hits the floor seam fully and thus creates an additional cooling effect. Before the jaws 7a and 7b together again in their upper position in order to produce the next transverse seam in, the disc 12 is brought out of the area of the filling opening again, whereby the vacuum is released immediately. This is necessary because the pouch is back be tightened nut to get a perfect night for the next bag obtain.

Claims (5)

Patent r 1. Verfahren zum Entlasten der querschweißnaht nach Aufhebung des Preßdruckes der Quersiegelwerkzeuge in einer Schlauchbeutelfüllmaschine, bei der der Packstoff über eine Formschulter zu einem Schlauch geformt und das Verpackungsgut über ein in die Formschulter ragendes Füllrohr eingebracht wird, dadurch gekennzeichnet, daß mit Beginn des Öffnungsvorganges bis maximal der Einleitung des Schließvorganges der Quersiegelwerkzeuge in dem halbfertigen Beutel ein Vakuum erzeugt wird. Patent r 1. Method for relieving the transverse weld seam after it has been removed the pressure of the cross sealing tools in a tubular bag filling machine which forms the packaging material into a tube via a forming shoulder and the packaged goods is introduced via a filling pipe protruding into the forming shoulder, characterized in that that with the beginning of the opening process up to a maximum of the initiation of the closing process the transverse sealing tools in the semi-finished bag a vacuum is created. 2. Vorrichtung zur Herstellung von Schlauchbeutelpackungen nach dem Verfahren in anspruch 1, dadurch gekennzeichnet, daß in der Wandung des Füllrohres (2) ein bis in den Innenraum des puilroksres (2) verlaufendes Absaugrohr (10) und über dem Füllrohr (2) eine in Arbeitsstellung die Füllöffnung des Füllrohres (2) abdeckende Scheibe (11) angeordnet ist.2. Device for the production of tubular bag packs according to the Method in claim 1, characterized in that in the wall of the filling pipe (2) a suction tube (10) and extending into the interior of the puilroksres (2) Above the filling pipe (2), in the working position, the filling opening of the filling pipe (2) covering disc (11) is arranged. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die das Füllrohr (2) abdeckende Scheibe. (11) an einem Hebelarm (12) befestigt ist, der mit der Eintourenwelle der Schlauchbeutelmaschine über einen mechanischen Antrieb verbunden ist.3. Apparatus according to claim 2, characterized in that the Disc covering filling pipe (2). (11) is attached to a lever arm (12) which with the single-turn shaft of the tubular bag machine via a mechanical drive connected is. 4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die das Fullrohr (2) abdeckende Scheibe (11) von der Eintourenwelle der Schlauchbeutelmaschine aus über einem Nockenschalter und einem Elektromagneten betätigbar ist.4. Apparatus according to claim 2, characterized in that the Disc (11) covering the filling pipe (2) from the single-turn shaft of the tubular bag machine can be actuated via a cam switch and an electromagnet. 5. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß in der Höhe der Quersiegelwerkzeuge (7a; 7b) zusätzlich eine zu der Bodennaht gerichtete Kühlluftdüse (13) angeordnet ist.5. Apparatus according to claim 2, characterized in that in the The height of the transverse sealing tools (7a; 7b) is also directed towards the bottom seam Cooling air nozzle (13) is arranged.
DE19671586328 1967-06-01 1967-06-01 Method for relieving the cross weld seam Pending DE1586328A1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541233A1 (en) * 1983-02-18 1984-08-24 Hayssen Mfg Co METHOD AND APPARATUS FOR FORMING, FILLING AND SEALING PACKAGES
US5222346A (en) * 1992-02-14 1993-06-29 Natec, Reich, Summer Gmbh & Co. Kg. Process and device for packing a substance in a foil tube
US5347792A (en) * 1992-02-28 1994-09-20 Schreiber Foods, Inc. Method and apparatus for forming a slice of a food item having a heat tack seal
US5440860A (en) * 1989-06-05 1995-08-15 Schreiber Foods, Inc. Method and apparatus for forming and hermetically sealing slices of food items
US5548947A (en) * 1993-07-08 1996-08-27 Thomas J. Lipton Co. Apparatus and method for producing packets
DE102013204909A1 (en) 2013-03-20 2014-09-25 Robert Bosch Gmbh Device and method for separating a packaging material
DE102018117871A1 (en) * 2018-07-24 2020-01-30 Haver & Boecker Ohg Device and method for producing at least one empty open sack

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541233A1 (en) * 1983-02-18 1984-08-24 Hayssen Mfg Co METHOD AND APPARATUS FOR FORMING, FILLING AND SEALING PACKAGES
US5701724A (en) * 1989-06-05 1997-12-30 Schreiber Fodds, Inc. Method and apparatus for forming and hermetically sealing slices of food items
US5440860A (en) * 1989-06-05 1995-08-15 Schreiber Foods, Inc. Method and apparatus for forming and hermetically sealing slices of food items
US6058680A (en) 1989-06-05 2000-05-09 Schreiber Foods, Inc. Method and apparatus for forming and hermetically sealing slices of food items
US5222346A (en) * 1992-02-14 1993-06-29 Natec, Reich, Summer Gmbh & Co. Kg. Process and device for packing a substance in a foil tube
DE4204396A1 (en) * 1992-02-14 1993-08-26 Natec Reich Summer Gmbh Co Kg METHOD AND DEVICE FOR PACKING A MASS IN A FILM TUBE
US5347792A (en) * 1992-02-28 1994-09-20 Schreiber Foods, Inc. Method and apparatus for forming a slice of a food item having a heat tack seal
US5619844A (en) * 1992-02-28 1997-04-15 Schreiber Foods, Inc. Method and apparatus for forming a slice of a food item having a heat tacks seal
US5800851A (en) * 1992-02-28 1998-09-01 Schreiber Foods, Inc. Slice of a food item having a heat tack seal
US5548947A (en) * 1993-07-08 1996-08-27 Thomas J. Lipton Co. Apparatus and method for producing packets
DE102013204909A1 (en) 2013-03-20 2014-09-25 Robert Bosch Gmbh Device and method for separating a packaging material
DE102018117871A1 (en) * 2018-07-24 2020-01-30 Haver & Boecker Ohg Device and method for producing at least one empty open sack
CN112469555A (en) * 2018-07-24 2021-03-09 海福和博克公司 Apparatus and method for manufacturing at least one open pocket
US11780200B2 (en) 2018-07-24 2023-10-10 Haver & Boecker Ohg Device and method for producing at least one empty open bag

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