DE102004035581A1 - Longitudinal weld forming device for tubes has heat sealer and seal tape in between which longitudinal weld is clamped to heat weld on opposing sides - Google Patents

Longitudinal weld forming device for tubes has heat sealer and seal tape in between which longitudinal weld is clamped to heat weld on opposing sides Download PDF

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Publication number
DE102004035581A1
DE102004035581A1 DE102004035581A DE102004035581A DE102004035581A1 DE 102004035581 A1 DE102004035581 A1 DE 102004035581A1 DE 102004035581 A DE102004035581 A DE 102004035581A DE 102004035581 A DE102004035581 A DE 102004035581A DE 102004035581 A1 DE102004035581 A1 DE 102004035581A1
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Germany
Prior art keywords
heat
longitudinal seam
sealing
weld
jaw
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Application number
DE102004035581A
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German (de)
Inventor
Walter Dr. Baur
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.)
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
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Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
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Priority to DE102004035581A priority Critical patent/DE102004035581A1/en
Publication of DE102004035581A1 publication Critical patent/DE102004035581A1/en
Withdrawn legal-status Critical Current

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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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • 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
    • 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
    • B29C66/81431—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
    • B29C66/83—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
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • 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
    • B65B51/18—Applying or generating heat or pressure or combinations thereof by endless bands or chains
    • 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
    • B65B9/2014—Tube advancing means
    • B65B9/2021—Tube advancing means combined with longitudinal welding 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
    • 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
    • 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
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/851—Bag or container making machines
    • B29C66/8511—Bag making 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

Abstract

A form shoulder (5) wraps a sheet (4) around a format pipe (6) to form a tube (3). A seal tape (15) wound around two rollers (27,28) is heated while one of the rollers is driven by a drive (30). A longitudinal weld (2) is clamped between a heat sealer (14) and the seal tape to heat the weld on opposing sides.

Description

Die Erfindung betrifft eine Vorrichtung zur Bildung einer Längsnaht eines Folienschlauches mit einer Formschulter zum Umlegen einer flexiblen Folie um ein Formatrohr einer Transporteinrichtung für den Weitertransport der Folie und des geformten Folienschlauches, einer Einrichtung zur Verschweißung der Längsnaht, wobei die Einrichtung zur Verschweißung der Längsnaht ein um zwei Rollen umlaufendes Siegelband aufweist, das Siegelband mittels einer Heizeinrichtung erhitzbar ist, und eine der Rollen mittels eines Antriebs angetrieben wird.The The invention relates to a device for forming a longitudinal seam a film tube with a forming shoulder for folding a flexible film around a format tube of a transport device for further transport the film and the molded film tube, a device for welding the longitudinal seam, wherein the means for welding the longitudinal seam one by two rollers has circumferential sealing strip, the sealing strip by means of a heating device is heated, and one of the rollers driven by a drive becomes.

Eine derartige Vorrichtung mit zwei die Längsnaht einklemmenden Siegelbändern ist aus der DE 44 39 104 A1 bekannt. Bei dieser Vorrichtung wird die Längsnaht mittels zweier gegeneinander wirkender Siegelbänder in kontinuierlicher Weise ohne Folienstillstand verschweißt. Neben dieser Vorrichtung sind auch analoge Verpackungsmaschinen bekannt, bei denen entweder nur ein umlaufendes Siegelband oder nur eine Heißsiegelbacke zur Längsnahtverschweißung verwendet wird. Dabei wird in Abhängigkeit eines Folientyps oder einer Verpackungsleistung entweder eine Heißsiegelbacke oder ein (bzw. zwei) Siegelband (bzw. Bänder) genutzt.Such a device with two the longitudinal seam einklemmenden seal bands is from the DE 44 39 104 A1 known. In this device, the longitudinal seam is welded by means of two counteracting sealing bands in a continuous manner without foliate failure. In addition to this device and analog packaging machines are known in which either only a circumferential sealing strip or only a heat sealing jaw is used for Längsnahtverschweißung. In this case, depending on a type of film or a packaging performance, either a heat-sealing jaw or one (or two) sealing band (or bands) is used.

Die bekannten Vorrichtungen haben den Nachteil, dass sie keine unterschiedliche Art der Wärmeeinbringung von gegenüberliegenden Seiten der Längsnaht erlauben. Entweder weist eine Vorrichtung nur ein Siegelband oder nur eine Heißsiegelbacke zum Längsnahtverschweißen auf, wodurch eine Wärmeeinbringung von gegenüberliegenden Seiten der Längsnaht möglich ist. Oder zwei baugleiche Siegelbänder erwärmen von gegenüberliegenden Seiten her eine vom Folienschlauch abstehende Längsnaht. Dann ist ihre Art der Wärmeeinbringung gleich. Eine von zwei gegenüberliegenden Seiten ausgeübte unterschiedliche Art der Wärmeeinbringung und auch der Druckeinbringung kann jedoch die Längsnaht beeinflussen.The known devices have the disadvantage that they are no different Type of heat input from opposite Sides of the longitudinal seam allow. Either a device has only a sealing band or only a heat sealing jaw for longitudinal seam welding, whereby a heat input from opposite Sides of the longitudinal seam possible is. Or two identical sealing strips heat from opposite Side her a protruding from the film tube longitudinal seam. Then its kind the heat input equal. One of two opposite Pages exercised different type of heat input and also the pressure input can influence the longitudinal seam.

Der Erfindung liegt die Aufgabe zugrunde, bei einer Vorrichtung der eingangs beschriebenen Art von gegenüberliegenden Seiten einer Längsnaht eine unterschiedliche Wärmeeinbringung zu erreichen.Of the Invention is based on the object in a device of initially described type of opposite sides of a longitudinal seam a different heat input to reach.

Gelöst ist die Aufgabe gemäß dem kennzeichnenden Teil des Anspruchs 1. Danach weist die Einrichtung eine Heißsiegelbacke auf, und die Längsnaht ist zwischen dem Siegelband und der Heißsiegelbacke eingeklemmt, um von der einen Seite von der Heißsiegelbacke und von der anderen Seite von dem Siegelband mit Wärme versorgt werden zu können.Solved is the Task according to the characterizing Part of claim 1. Thereafter, the device has a heat sealing jaw on, and the longitudinal seam is trapped between the sealing band and the heat seal jaw to from one side of the heat sealing jaw and supplied with heat from the other side of the sealing band to be able to.

Die vorgeschlagene Neuerung weist mehrere Vorteile auf. Zum einen kann von gegenüberliegenden Seiten eine Wärmeeinbringung in die Längsnaht erfolgen, und die Art der Wärmeeinbringung ist unterschiedlich. Zum anderen bildet die Heißsiegelbacke mit ihrer Siegelfläche einen geradlinigen, ebenen mechanischen Widerstand für das Siegelband. Und schließlich ist die Heißsiegelbacke sehr robust und erhöht auch die Nutzungsdauer des Siegelbandes, indem dieses auf einen ebenen Widerstand abrollt. Die Wärmeeinbringungen sind unterschiedlich, da das Siegelband mit der weiterbewegten Längsnaht umläuft und es somit keinen Schlupf zwischen dem Siegelband und der Längsnaht gibt, wodurch eine sehr gute Wärmeeinleitung in die Längsnaht erfolgt. Dagegen gleitet die Längsnaht über die ortsfeste Heißsiegelbacke. Die Strahlungswärme der Heißsiegelbacke bleibt dabei vergleichsweise hoch. Im Vergleich zu einer reinen Wärmeeinbringung mittels ortsfester Heißsiegelbacke und im Vergleich zu einem einzigen Siegelband oder zu zwei Siegelbändern ist ein Schweißergebnis erreicht, welches die Vorteile einer Heißsiegelbacke mit den Vorteilen eines Siegelbandes kombiniert, und wobei die Längsränder der Folienbahn gut geführt werden.The proposed innovation has several advantages. For one thing from opposite Sides a heat input in the longitudinal seam done, and the type of heat input is different. On the other hand forms the heat seal jaw with its sealing surface a rectilinear, level mechanical resistance for the sealing band. And finally is the heat sealing jaw very robust and elevated Also, the useful life of the seal band by this on a even resistance rolls. The heat inputs are different, since the sealing band with the moving longitudinal seam circulated and thus there is no slip between the sealing band and the longitudinal seam gives, giving a very good heat input in the longitudinal seam he follows. In contrast, the longitudinal seam slides over the stationary heat sealing jaw. The radiant heat the heat sealing jaw remains relatively high. Compared to a pure one heat input by means of stationary heat sealing jaw and compared to a single seal band or to two seal bands a welding result Achieved the benefits of a heat seal jaw with the advantages a sealing tape combined, and wherein the longitudinal edges of the film web are well managed.

Weitere, vorteilhafte Ausgestaltungen der erfindungsgemäßen Vorrichtung sind in den Ansprüchen 2 bis 4 beschrieben.Further, advantageous embodiments of the device according to the invention are in the claims 2 to 4 described.

Ist die Vorrichtung Teil einer vertikalen Schlauchbeutelmaschine, an deren Formatrohr die Einrichtung zur Verschweißung der Längsnaht vorgesehen ist (Anspruch 2), so erfolgt die Längsnahtverschweißung eines Folienschlauches in zuverlässiger Weise an einer dafür geeigneten Verpackungsmaschine.is the device is part of a vertical flow wrapper, on whose format tube the device is provided for welding the longitudinal seam (claim 2), the longitudinal seam welding takes place Foil tube in a reliable way at one for it suitable packaging machine.

Durch wahlweises Ein- bzw. Ausschalten der Heizung der Heißsiegelbacke (Anspruch 3) bzw. der Heizung des Siegelbandes (Anspruch 4) kann die Vorrichtung, je nach zu verschweißendem Folientyp bzw. Foliendicke, auf vier unterschiedliche Arten betrieben werden.By optional switching on or off the heating of the heat sealing jaw (Claim 3) or the heating of the sealing strip (claim 4) can the device, depending on the type of film or film thickness to be welded, be operated in four different ways.

So kann das Siegelband beheizt werden und gegen eine kalte Heißsiegelbacke wirken, sowohl das Siegelband als auch die Heißsiegelbacke werden beheizt, nur die Heißsiegelbacke ist beheizt und wirkt gegen das umlaufende, kalte Siegelband und schließlich, beide Siegelaggregate sind kalt und dienen nur zum Zusammendrücken der Folienbahnränder (Kaltpressverfahren).So The sealing band can be heated and against a cold heat sealing jaw Both the sealing band and the heat-sealing jaw are heated, only the heat sealing jaw is heated and acts against the circulating, cold seal band and finally, both Sealing units are cold and serve only to squeeze the Sheet edges (Cold-pressing).

Im folgenden wird die Erfindung anhand ein Ausführungsbeispiel darstellender Figuren näher beschrieben. Es zeigt:In the following the invention is based on a Embodiment illustrative figures described in more detail. It shows:

1 in einer schematischen Darstellung und in einer Seitenansicht eine Vorrichtung zur Bildung einer Längsnaht eines Folienschlauches und zur Querverschweißung des Folienschlauches, mit einer Formschulter zum Umlegen einer flexiblen Folie um ein Formatrohr, einer Transporteinrichtung für den Weitertransport der Folie und des geformten Folienschlauches, mit Quersiegelwerkzeugen, und mit einem umlaufenden Siegelband und einer Heißsiegelbacke zur Verschweißung der Längsnaht des Folienschlauches; 1 in a schematic representation and in a side view, an apparatus for forming a longitudinal seam of a film tube and for transverse welding of the film tube, with a forming shoulder for transferring a flexible film to a format tube, a transport device for the further transport of the film and the molded film tube, with transverse sealing tools, and with a circumferential sealing band and a heat sealing jaw for welding the longitudinal seam of the film tube;

2 in einem Schnitt entlang A-A der 1 das Füllrohr mitsamt Einrichtung zur Verschweißung der Längsnaht der 1, sowie 2 in a section along AA the 1 the filling tube together with means for welding the longitudinal seam of 1 , such as

3 in einer Seitenansicht und in vergrößerter Darstellung die Einrichtung zur Verschweißung der Längsnaht der 1. 3 in a side view and an enlarged view of the device for welding the longitudinal seam of 1 ,

Bei einer Vorrichtung 1 zur Bildung einer Längsnaht 2 eines Folienschlauches 3 wird eine flexible Folie 4 von einer Vorratsrolle 40 abgewickelt und mittels einer Formschulter 5 um ein Formatrohr 6 gelegt. Die Vorrichtung 1 ist Teil einer vertikalen Schlauchbeutelmaschine und weist eine Transporteinrichtung 7 für den Weitertransport der über eine Rolle 8 geführte Folie 4 und des geformten Folienschlauches 3 auf. Zur Erzeugung von Beutelquernähten sind Quersiegelwerkzeuge 9 vorgesehen, die sowohl Kopf- als auch Bodennähte 10 verschweißen, und die erzeugten, durch das Formatrohr 6 gefüllten Beutel 11 mittels eines Messers 12 vom Folienschlauch 3 abtrennen. Zur Verschweißung der Längsnaht 2 des Folienschlauches 3 sind zwei gegeneinander gepresste, die beiden Längsränder 13 der Folie 4 einklemmende Schweißaggregate, nämlich ein beheiztes Siegelband 15 und eine mittels einer Heizpatrone 38 beheizte Heißsiegelbacke 14 vorgesehen.In a device 1 to form a longitudinal seam 2 a film tube 3 becomes a flexible film 4 from a supply roll 40 unwound and by means of a form shoulder 5 around a format tube 6 placed. The device 1 is part of a vertical tubular bag machine and has a transport device 7 for the further transport of a role 8th guided foil 4 and the molded film tube 3 on. For the production of bag cross seams are transverse sealing tools 9 provided that both head and bottom seams 10 weld, and the generated, through the format tube 6 filled bag 11 by means of a knife 12 from the film tube 3 split off. For welding the longitudinal seam 2 of the film tube 3 are two pressed against each other, the two longitudinal edges 13 the foil 4 clamping welding units, namely a heated sealing band 15 and one by means of a heating cartridge 38 heated heat sealing jaw 14 intended.

Die Längsnaht 2 ist zwischen dem Siegelband 15 und der Heißsiegelbacke 14 eingeklemmt, um von der einen Seite von der Heißsiegelbacke 14 und von der anderen Seite von dem Siegelband 15 mit Wärme versorgt werden zu können. Dabei bildet die Siegelfläche der Heißsiegelbacke 14 einen ebenen, gleichmäßigen, mechanischen Widerstand für das Siegelband 15. Das Siegelband 15 läuft um zwei parallel zueinander ausgerichtete Rollen 27, 28 um. Am Siegelband 15 ist eine Rolle 27 von einem Antrieb 30 angetrieben. Als Antrieb 30 ist ein Servomotor vorgesehen.The longitudinal seam 2 is between the seal band 15 and the heat seal jaw 14 sandwiched to one side of the heat seal jaw 14 and from the other side of the seal band 15 to be supplied with heat. The sealing surface of the heat sealing jaw forms 14 a level, even, mechanical resistance to the sealing band 15 , The seal band 15 runs around two parallel aligned roles 27 . 28 around. On the seal band 15 is a role 27 from a drive 30 driven. As a drive 30 a servomotor is provided.

Die Transporteinrichtung 7 weist zwei gegenläufige Abzugsriemen 31, 32 auf, die um Rollen 33, 34 umlaufen, und die gegen die Folie 4 und das Formatrohr 6 wirken. Zwischen den Abzugsriemen 31, 32 und der Folie 4 kommt ein Schlupf vor. Jeweils eine Rolle 33 eines Abzugsriemens 31, 32 wird mittels eines Antriebs 35 angetrieben. Die Antriebe 35 laufen synchron zueinander.The transport device 7 has two counter-rotating trigger belts 31 . 32 on that roll around 33 . 34 revolve, and those against the foil 4 and the format tube 6 Act. Between the trigger belts 31 . 32 and the foil 4 there is a slip. In each case a role 33 a trigger belt 31 . 32 is by means of a drive 35 driven. The drives 35 run in sync with each other.

11
Vorrichtungcontraption
22
Längsnahtlongitudinal seam
33
Folienschlauchfilm tube
44
Foliefoil
55
Formschulterforming shoulder
66
Formatrohrforming tube
77
Transporteinrichtungtransport means
88th
Rollerole
99
QuersiegelwerkzeugTransverse sealing tool
1010
Kopfnaht, BodennahtTop seam, bottom seam
1111
Beutelbag
1212
Messerknife
1313
Längsrandlongitudinal edge
1414
HeißsiegelbackeHeat sealing jaw
1515
Siegelbandsealing tape
1717
Einrichtung zur Verschweißung der LängsnahtFacility for welding the longitudinal seam
27, 2827 28
Rollerole
3030
Antriebdrive
31, 3231 32
Abzugsriemenextraction belt
33, 3433 34
Rollerole
3535
Antriebdrive
3838
HeizpatroneCartridge Heater
4040
Vorratsrollesupply roll

Claims (4)

Vorrichtung zur Bildung einer Längsnaht (2) eines Folieschlauches (3), mit einer Formschulter (5) zum Umlegen einer flexiblen Folie (4) um ein Formatrohr (6), einer Transporteinrichtung (7) für den Weitertransport der Folie (4) und des geformten Folienschlauches (3), einer Einrichtung (17) zur Verschweißung der Längsnaht (2), wobei die Einrichtung (17) zur Verschweißung der Längsnaht (2) ein um zwei Rollen (27, 28) umlaufendes Siegelband (15) aufweist, das Siegelband (14, 15) mittels einer Heizeinrichtung erhitzbar ist, und eine der Rollen (27) mittels eines Antriebs (30) angetrieben wird, dadurch gekennzeichnet, dass die Einrichtung (17) eine Heißsiegelbacke (14) aufweist, und die Längsnaht (2) zwischen dem Siegelband (15) und der Heißsiegelbacke (14) eingeklemmt ist, um von der einen Seite von der Heißsiegelbacke (14) und von der anderen Seite von dem Siegelband (15) mit Wärme versorgt werden zu können.Device for forming a longitudinal seam ( 2 ) of a film tube ( 3 ), with a shoulder ( 5 ) for transferring a flexible film ( 4 ) around a format tube ( 6 ), a transport device ( 7 ) for the further transport of the film ( 4 ) and the molded film tube ( 3 ), an institution ( 17 ) for welding the longitudinal seam ( 2 ), the facility ( 17 ) for welding the longitudinal seam ( 2 ) one by two rolls ( 27 . 28 ) circumferential sealing band ( 15 ), the sealing band ( 14 . 15 ) is heatable by means of a heating device, and one of the rollers ( 27 ) by means of a drive ( 30 ), characterized in that the device ( 17 ) a heat sealing jaw ( 14 ), and the longitudinal seam ( 2 ) between the sealing band ( 15 ) and the heat sealing jaw ( 14 ) is clamped to one side of the heat sealing jaw ( 14 ) and from the other side of the sealing band ( 15 ) to be supplied with heat. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung (1) Teil einer vertikalen Schlauchbeutelmaschine ist, an deren Formatrohr (6) die Einrichtung (17) zur Verschweißung der Längsnaht (2) vorgesehen ist.Device according to claim 1, characterized in that the device ( 1 ) Is part of a vertical tubular bag machine, on whose format tube ( 6 ) the facility ( 17 ) for welding the longitudinal seam ( 2 ) is provided. Vorrichtung nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die Heißsiegelbacke (14) wahlweise dauernd beheizt oder dauernd unbeheizt ist, wozu vorzugsweise eine in der Heißsiegelbacke (14) vorgesehene ggf. mit Strom versorgte Heizpatrone (38) vorgesehen ist.Device according to claim 1 or claim 2, characterized in that the heat-sealing jaw ( 14 ) is either permanently heated or continuously unheated, for which purpose preferably one in the heat sealing jaw ( 14 ) provided possibly supplied with power heating cartridge ( 38 ) is provided. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Siegelband (15) wahlweise dauernd beheizt oder dauernd unbeheizt betreibbar ist.Device according to one of claims 1 to 3, characterized in that the sealing band ( 15 ) either permanently heated or constantly unheated operable.
DE102004035581A 2004-07-22 2004-07-22 Longitudinal weld forming device for tubes has heat sealer and seal tape in between which longitudinal weld is clamped to heat weld on opposing sides Withdrawn DE102004035581A1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102639399A (en) * 2009-09-30 2012-08-15 詹路易吉·罗西 Automatic packaging machine
DE102012003835A1 (en) 2012-02-29 2013-08-29 Nordenia Deutschland Emsdetten Gmbh Device for manufacturing film tube made of flexible film flat web, has counter heating element that is arranged inside film tube in such way that film ends extend straight to adjoining film areas of film tube
CN110667968A (en) * 2019-10-10 2020-01-10 合肥妙思智能医疗科技有限公司 Information labeling and sealing bagging mechanism for medical blood collection tube
CN113501155A (en) * 2021-07-06 2021-10-15 新活力活性炭有限公司 Activated carbon particle packing and bagging equipment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4439104A1 (en) * 1994-11-02 1996-05-09 Rovema Gmbh Device for forming a longitudinal seam of a film tube
DE19957891A1 (en) * 1999-12-01 2001-06-07 Rovema Gmbh Tubular bag machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4439104A1 (en) * 1994-11-02 1996-05-09 Rovema Gmbh Device for forming a longitudinal seam of a film tube
DE19957891A1 (en) * 1999-12-01 2001-06-07 Rovema Gmbh Tubular bag machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102639399A (en) * 2009-09-30 2012-08-15 詹路易吉·罗西 Automatic packaging machine
CN102639399B (en) * 2009-09-30 2014-12-03 詹路易吉·罗西 Automatic packaging machine
DE102012003835A1 (en) 2012-02-29 2013-08-29 Nordenia Deutschland Emsdetten Gmbh Device for manufacturing film tube made of flexible film flat web, has counter heating element that is arranged inside film tube in such way that film ends extend straight to adjoining film areas of film tube
CN110667968A (en) * 2019-10-10 2020-01-10 合肥妙思智能医疗科技有限公司 Information labeling and sealing bagging mechanism for medical blood collection tube
CN113501155A (en) * 2021-07-06 2021-10-15 新活力活性炭有限公司 Activated carbon particle packing and bagging equipment

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