DE2906827A1 - Bag producing installation - uses hose form a weldable track of packaging material round a former prong and fitted with welding and separating devices - Google Patents

Bag producing installation - uses hose form a weldable track of packaging material round a former prong and fitted with welding and separating devices

Info

Publication number
DE2906827A1
DE2906827A1 DE19792906827 DE2906827A DE2906827A1 DE 2906827 A1 DE2906827 A1 DE 2906827A1 DE 19792906827 DE19792906827 DE 19792906827 DE 2906827 A DE2906827 A DE 2906827A DE 2906827 A1 DE2906827 A1 DE 2906827A1
Authority
DE
Germany
Prior art keywords
hose
welding
jaws
bag
packaging material
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Withdrawn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
DE19792906827
Other languages
German (de)
Inventor
Walter Saur
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19792906827 priority Critical patent/DE2906827A1/en
Publication of DE2906827A1 publication Critical patent/DE2906827A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C65/745—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 a single unit having both a severing tool and a welding tool
    • B29C65/7451—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 a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • 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
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/81427—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 comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/81431—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 comprising a single cavity, e.g. 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
    • B29C66/81—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
    • B29C66/81811—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 of the welding 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—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
    • B65B51/10—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
    • 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
    • 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

Abstract

The installation also includes a device for the forward movement of the hose in steps by fixed length in each case and with a cross seam welding installation behind the former prong, to fit a cross seam to each hose. A sepg. device directly adjoins the cross seam welding installation to cut off a bag one end of which is closed from the hose. A suction installation which operates on both sides of the hose is located behind the sepg. device in the direction of the hose's forward movement.

Description

Vorrichtung zum Herstellen von BeutelnDevice for making bags

Stand der Technik Die Erfindung geht aus von einer Vorrichtung zum Herstellen von Beuteln nach der Gattung des Hauptanspruchs. Bei einer beispielsweise durch die DE-OS 24 57 533 bekanntgewordenen Vorrichtung dieser Art wird von der Quernahtschweiß einrichtung laufend Wärme durch Strahlung auf die Klinge der Trenneinrichtung übertragen, so daß sich diese im Laufe des Betriebs aufheizt. Beim Trennvorgang überträgt die Klinge ihrerseits Wärme auf den schweißbaren Packstoff, so daß der Schlauch an den Schnittstellen zum Teil verklebt.PRIOR ART The invention is based on a device for Manufacture of bags according to the preamble of the main claim. For example by DE-OS 24 57 533 become known device of this type is of the Cross seam welding device continuously heat by radiation on the blade of the cutting device transferred so that it heats up in the course of operation. During the cutting process the blade in turn transfers heat to the weldable packaging material, so that the Tube partially glued at the interfaces.

Soll in einen so hergestellten Beutel anschließend noch Füllgut eingebracht werden, ist es schwierig, den Beutel zu öffnen.Should then still be filled in a bag produced in this way it will be difficult to open the bag.

Vorteile der Erfindung Die erfindungsgemäße Vorrichtung zum Herstellen von Beuteln mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß die hergestellten Beutel trotz unmittelbarer Nähe der Quernahtschweißeinrichtung an der Trenneinrichtung an ihrem Kopf offene Beutel hergestellt werden, welche anschließend ohne weitere Bearbeitung gefüllt werden können. Die miteinander verklebenden Offnungsränder werden nämlich voneinander getrennt, bevor die Klebestellen sich durch Erkalten verfestigen.Advantages of the Invention The manufacturing device according to the invention of bags with the characterizing features of the main claim has the advantage that the bags produced despite the immediate vicinity of the transverse seam welding device open bags are produced at the separating device at their head, which subsequently can be filled without further processing. The edges of the opening that are glued together are separated from each other before the glue points cool down solidify.

Zeichnung Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 eine Beutel-Form- und -Füllvorrichtung vereinfacht in Vorderansicht und Figur 2 eine Quernahtschweiß- und Trenneinrichtung der Vorrichtung nach Figur 1 im Querschnitt.Drawing An embodiment of the invention is shown in the drawing and explained in more detail in the following description. It show figure 1 a bag form and fill device simplified in front view and figure 2 shows a transverse seam welding and cutting device of the device according to FIG. 1 in cross section.

Beschreibung des Busfuhrungsbeispiels Einer Einrichtung 11 zum schrittweisen Fördern von Beuteln 1 zu einer Fülleinrichtung 12 und einer nicht -dargestellten Schließeinrichtung ist eine Beutelformeinrichtung 13 zugeordnet. Die Beutelformeinrichtung 13 hat an einem Gestell 14 einen senkrechten hohlen Formdorn 15 mit einem Fülltrichter 16, eine den Formdorn 15 umgebende Formschulter 17 zum Herumlegen einer Packstoffbahn zu einem Schlauch 2 um den Formdorn 15, eine die überlappenden Ränder der Packstoffbahn verschweißende Längsnahtschweißeinrichtung 18, ein den Schlauch 2 taktweise zum jeweils eine Beutellänge vorziehendes Vorzugrollenpaar 19, eine Quernahtschweißeinrichtung 20 zum Anbringen jeweils einer Quernaht am Schlauch 2 und eine Trenneinrichtung 21 zum Abschneiden jeweils eines am Boden verschlossenen Beutels 1 am unteren Ende des Schlauches 2 unterhalb der Quernahtschweißeinrichtung 20.Description of the bus guide example of a device 11 for step-by-step Conveying bags 1 to a filling device 12 and a not shown A bag-forming device 13 is assigned to the closing device. The bag forming device 13 has a vertical hollow mandrel 15 with a filling funnel on a frame 14 16, a forming shoulder 17 surrounding the forming mandrel 15 for laying a web of packaging material around to a tube 2 around the mandrel 15, one of the overlapping edges of the packaging material web longitudinal seam welding device 18 which welds the hose 2 cyclically to the A pair of draw rollers 19 each preferring a bag length, a transverse seam welding device 20 for making a transverse seam on the hose 2 and a separating device 21 for cutting off a bag 1 closed at the bottom at the lower end of the hose 2 below the transverse seam welding device 20.

Die Quernahtschweißeinrichtung 20 hat zwei an Stangen 22,-23 befestigte Schweißbacken 24, 25 mit eingesetzten Heizpatronen 26, 27. Zum Anbringen einer Schxfeißnaht am Schlauch 2 werden die Schweißbacken gegeneinanderbewegt und -gepreßt, wobei der Schlauch 2 abgeflacht wird und die Innenseiten im Bereich der Anlage der beiden Schweißbacken durch Ubertragen von Druck und Wärme miteinander zu einer Quernaht verschweißt werden (Fig. 2). Der eine Schweißbacken 25 trägt über eine zwischengelagerte Isolierschicht 29 einen Backen 30, dessen Vorderseite in gleicher Ebene liegt wie die des Schweißbackens 25. Gegen diesen Backen 30 ist ein zweiter von einer Stange 31 getragener Backen 32 bewegbar. In einem Spalt zwischen der Oberseite der Backen 30, 32 und der Unterseite der Schweißbacken 24, 25 ist eine Klinge 33 der Trenneinrichtung 21 quer verschiebbar angeordnet. Nach dem Zusammenfahren der Schweißbacken 24, 25 und der Backen 30, 32 in Arbeitsstellung, in der der Schlauch 2 von diesen Backen festgeklemmt ist, wird die Klinge 33 vor- und zurückbewegt, wobei vom Schlauch 2 ein Beutel 1 abgetrennt wird.The transverse seam welding device 20 has two fastened to rods 22, -23 Welding jaws 24, 25 with inserted heating cartridges 26, 27. For making a weld seam the welding jaws are moved and pressed against one another on the hose 2, the Hose 2 is flattened and the insides in the area of the plant of the two welding jaws by transferring pressure and heat to one another Cross seam are welded (Fig. 2). The one welding jaw 25 carries over a intermediate insulating layer 29 a jaw 30, the front side in the same Level is like that of the welding jaw 25. Against this jaw 30 is a second one jaws 32 carried by a rod 31 are movable. In a gap between the top of the jaws 30, 32 and the underside of the welding jaws 24, 25 is a blade 33 the separating device 21 arranged to be transversely displaceable. After the Welding jaws 24, 25 and the jaws 30, 32 in the working position in which the hose 2 is clamped by these jaws, the blade 33 is moved back and forth, whereby a bag 1 is separated from the tube 2.

Um zu verhindern, daß die Schnittränder am Kopf des Beutels 1 durch Wärmeübertragung von der Klinge 33, die durch Wärmestrahlung von dem darüberliegenden dauerbeheizten Schweißbacken 25 erwärmt ist, miteinander verkleben oder verschweißen, haben die Backen 30, 32 auf ihrer Vorderseite mündende Saugbohrungen 35, die mit einem. Kanal 36 in den Backen 32, 34 verbunden sind. Die Kanäle 36 sind mit einer durch ein Ventil abschaltbaren Unterdruckquelle verbunden. Unmittelbar nach dem Durchtrennen des Schlauchs 2 durch die Klinge 33 wird der Backen 32 von der Stange 31 zuruckgezogen, wobei er die an ihm anliegende Lage des Beutelkopfes durch den durch die Saugbohrungen 35 wirkenden Unterdruck mitzieht, während die andere Lage an dem anderen Backen 30 durch die Wirkung des dort durch die Saugbohrungen 35 wirkenden Unterdrucks gehalten wird. Nach Abschalten des Unterdrucks fällt der so hergestellte oben offene Beutel 1 in die Fördereinrichtung 11, die ihn der Füll- und Verschließvorrichtung zuführt.To prevent the cut edges on the head of the bag 1 through Heat transfer from the blade 33 by thermal radiation from the one above it permanently heated welding jaws 25 is heated, glued or welded together, have the jaws 30, 32 on their front opening suction holes 35, which with one. Channel 36 in the jaws 32, 34 are connected. The channels 36 are with a vacuum source that can be switched off by a valve tied together. Direct after the cutting of the hose 2 by the blade 33, the jaw 32 is of the rod 31 is withdrawn, the position of the bag head resting against it by the negative pressure acting through the suction holes 35, while the different position on the other jaw 30 by the action of the suction holes there 35 acting negative pressure is maintained. After the vacuum has been switched off, the open-top bag 1 produced in this way into the conveyor 11, which makes it the filling and closing device feeds.

Damit die Klinge 33 der Trenneinrichtung 21 nicht zu sehr aufgeheizt wird, können die anliegenden Backen 30, 32 zusätzlich eine Bohrung 38 zum Durchführen eines Kühlmittels, beispielsweise Kühlwasser aufweisen.So that the blade 33 of the separating device 21 is not heated too much is, the abutting jaws 30, 32 can also have a hole 38 to pass through a coolant, for example cooling water.

Das Öffnen und Abgeben des jeweils vom Schlauch abgetrennten Beutels 1 kann bereits erfolgen, solange sich noch die Schweißbacken 24, 25 in Arbeitsstellung befinden. Nach bestimmt er Preßdauer werden auch die Schweißbacken in ihre zurückgezogene Stellung bewegt und der Schlauch 2 von den Vorzugrollen 19 um eine Beutellänge vorgeschoben.The opening and dispensing of the bag separated from the hose 1 can take place as long as the welding jaws 24, 25 are still in the working position are located. After a certain pressing time, the welding jaws are also withdrawn into their retracted position Moved position and the tube 2 advanced by the feed rollers 19 by a bag length.

Mit der beschriebenen Beutelformeinrichtung 13 können leere Beutel 1 hergestellt werden, die dann anschließend gefüllt werden. Es können aber auch bereits teilweise gefüllte Beutel geformt werden, indem durch den hohlen Formdorn 15 eine Gutmenge in den Schlauch 2 während des Anbringens der Q1wnaht eingeschüttet wird. Die Fülleinrichtung 12 dient dann dazu, um noch eine zum Sollgewicht fehlende Menge Füllgut zuzugeben.With the described bag forming device 13 empty bags 1, which are then subsequently filled. But it can also already partially filled pouches can be shaped by passing through the hollow mandrel 15 poured an amount of material into the tube 2 while the Q1w seam is being applied will. The filling device 12 is then used to fill a weight that is still missing from the target weight Add quantity of product.

Zusammenfassung Es wird eine Vorrichtung zum Herstellen von Beuteln vorgeschlagen, bei der sichergestellt wird, daß zum nachträglichen Einfüllen von Gut die Beutelöffnung nicht verklebt ist. Die Vorrichtung umfaßt eine Beutelformeinrichtung (13) zum Formen eines Schlauches (2) und eine Quernahtschweiß-und Trenneinrichtung (20, 21) zum Anbringen jeweils einer Quernaht am Schlauch und zum Abtrennen jeweils eines Beutels vom Schlauchende. Der Trenneinrichtung (21) sind Bakken mit Saugöffnungen zugeordnet, welche die beiden Lagen des Kopfes eines Beutels (1) unmittelbar nach dem Trennen vom Schlauch (2) auseinanderziehen.Summary An apparatus for making bags is provided suggested, in which it is ensured that for subsequent filling of Well the bag opening is not glued. The apparatus includes a bag forming device (13) for forming a hose (2) and a transverse seam welding and cutting device (20, 21) for making a transverse seam on the hose and for separating each a bag from the end of the hose. The separating device (21) are jaws with suction openings assigned which the two layers of the head of a bag (1) immediately after before disconnecting the hose (2).

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Claims (3)

Ansprüche ö Vorrichtung zum Herstellen von Beuteln mit einer Einrichtung zum Formen eines Schlauches aus einer schweißbaren Packstoffbahn um einen Formdorn, mit einer Einrichtung zum schrittweisen Vorziehen des Schlauches um jeweils eine bestimmte Länge, mit einer dem Formdorn nachgeordneten Quernahtschweißeinrichtung zum Anbringen jeweils einer Quernaht am Schlauch und mit einer unmittelbar an die Quernahtschweißeinrichtung anschließenden renneinrichtung zum Abtrennen eines an seinem Ende verschlossenen Beutels vom Schlauch, dadurch gekennzeichnet, daß in Richtung des Schlauchvorzuges nach der Trenneinrichtung (21) eine auf beiden Seiten des Schlauches (2) angreifende Saugeinrichtung angeordnet ist.Claims ö device for the production of bags with a device for forming a tube from a weldable packaging material web around a forming mandrel, with a device for gradually pulling the hose forward one at a time certain length, with a transverse seam welding device downstream of the forming mandrel for attaching a cross seam to the hose and one directly to the Cross-seam welding device subsequent cutting device for cutting off a its end closed bag from the hose, characterized in that in Direction of the hose preferential after the separating device (21) one on both sides of the hose (2) engaging suction device is arranged. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Saugeinrichtung aus zwei gegeneinander bewegbaren Backen (30, 32) mit Saugöffnungen (35) besteht, die über eine Leitung an eine Unterdruckquelle angeschlossen sind.2. Apparatus according to claim 1, characterized in that the suction device consists of two mutually movable jaws (30, 32) with suction openings (35), which are connected to a vacuum source via a line. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eine Klinge (33) der Trenneinrichtung (21) an einem der Backen (30) anliegt und daß dieser Backen einen Kanal (36) für ein durchströmendes Kühlmittel enthält.3. Apparatus according to claim 2, characterized in that a blade (33) of the separating device (21) rests against one of the jaws (30) and that this jaws contains a channel (36) for a coolant flowing through.
DE19792906827 1979-02-22 1979-02-22 Bag producing installation - uses hose form a weldable track of packaging material round a former prong and fitted with welding and separating devices Withdrawn DE2906827A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792906827 DE2906827A1 (en) 1979-02-22 1979-02-22 Bag producing installation - uses hose form a weldable track of packaging material round a former prong and fitted with welding and separating devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792906827 DE2906827A1 (en) 1979-02-22 1979-02-22 Bag producing installation - uses hose form a weldable track of packaging material round a former prong and fitted with welding and separating devices

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DE2906827A1 true DE2906827A1 (en) 1980-09-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504802A1 (en) * 1995-02-14 1996-08-22 Rovema Gmbh Device for receiving open bag and conveying it to bag closing mechanism
DE19607502A1 (en) * 1996-02-29 1997-09-04 Rovema Gmbh Method and appliance for filling bags, with feeder, filler unit and outlet
DE19630420B4 (en) * 1996-07-27 2007-06-14 Rovema - Verpackungsmaschinen Gmbh Method for operating a tubular bag machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504802A1 (en) * 1995-02-14 1996-08-22 Rovema Gmbh Device for receiving open bag and conveying it to bag closing mechanism
DE19607502A1 (en) * 1996-02-29 1997-09-04 Rovema Gmbh Method and appliance for filling bags, with feeder, filler unit and outlet
DE19607502B4 (en) * 1996-02-29 2004-11-25 Rovema - Verpackungsmaschinen Gmbh Device for filling bags
DE19630420B4 (en) * 1996-07-27 2007-06-14 Rovema - Verpackungsmaschinen Gmbh Method for operating a tubular bag machine

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