EP0787655B2 - Apparatus for emptying a sleeve-bag - Google Patents

Apparatus for emptying a sleeve-bag Download PDF

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Publication number
EP0787655B2
EP0787655B2 EP97100817A EP97100817A EP0787655B2 EP 0787655 B2 EP0787655 B2 EP 0787655B2 EP 97100817 A EP97100817 A EP 97100817A EP 97100817 A EP97100817 A EP 97100817A EP 0787655 B2 EP0787655 B2 EP 0787655B2
Authority
EP
European Patent Office
Prior art keywords
recess
transverse wall
bag
tip
film
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.)
Expired - Lifetime
Application number
EP97100817A
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German (de)
French (fr)
Other versions
EP0787655A1 (en
EP0787655B1 (en
Inventor
Helmut Pauser
Gerd Brandhorst
Klaus Hammen
Wolf-Dietrich Dr. Herold
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.)
3M Deutschland GmbH
Original Assignee
3M Espe AG
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Filing date
Publication date
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Priority claimed from DE29606895U external-priority patent/DE29606895U1/en
Application filed by 3M Espe AG filed Critical 3M Espe AG
Priority to DE29724380U priority Critical patent/DE29724380U1/en
Publication of EP0787655A1 publication Critical patent/EP0787655A1/en
Application granted granted Critical
Publication of EP0787655B1 publication Critical patent/EP0787655B1/en
Publication of EP0787655B2 publication Critical patent/EP0787655B2/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00586—Means, generally located near the nozzle, for piercing or perforating the front part of a cartridge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • 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
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0033—Unpacking of articles or materials, not otherwise provided for by cutting
    • B65B69/0041—Unpacking of articles or materials, not otherwise provided for by cutting by puncturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/24—Hole-piercing devices
    • B67B7/26—Hole-piercing devices combined with spouts
    • B67B7/28—Hole-piercing devices combined with spouts and associated with receptacle hodlers

Definitions

  • a device for emptying a tubular bag containing a pasty mass is made DE 1 536 003 A known.
  • the tubular bag is supported there by a basket which is inserted in a cylinder receiving the tubular bag.
  • When emptying the tubular bag enters the basket and is pierced by protruding through the basket thorns.
  • DE 9 103 038 U discloses another device.
  • a knife inserted into the device with a transverse to the radial direction of the tubular bag surface.
  • To empty the tubular bag pressure is exerted on the rear end, which continues through the bag contents and presses the front end of the hose against the oblique knife edge.
  • a fold extending from the center to the outside of the front end of the tubular bag is cut through and the tubular bag is opened.
  • the known arrangements For proper fulfillment of their function in the tubular bag materials used in practice, the known arrangements requires relatively sharp piercing or cutting elements, which can usually be produced only by separate metal parts. This increases the cost of the usually designed as a disposable device.
  • the tool is designed as a fixed element, so it is a complete piston feed for completely emptying the tubular bag in the way.
  • the invention has for its object to provide a device for emptying a pasty mass containing tubular bag, which ensures a safe opening and complete emptying.
  • the device should also be used in machine-operated dispensing devices.
  • the inventive solution to this problem is characterized in claim 1. Characterized in that the device used to break up the tubular bag has a bag-facing tip, which bursts when stretched when applying the emptying pressure on the tubular bag film, a secure opening of the tubular bag is guaranteed even with difficult to handle films and pastes. The further fact that the tip is set back in the deflated state of the tubular bag against the tubular bag supporting transverse wall, allows a complete emptying.
  • the portion of the tubular bag film located above a recess may deform into the recess until the most overstretched central portion of the film reaches the tip of a mandrel disposed in the recess and is thereby burst.
  • the bursting of the over-stretched film leads - which is favorable for an unhindered discharge of the bag contents - to a much larger opening than is achieved by mere piercing or by cutting with a knife.
  • the embodiment of the invention according to claim 2 is favorable in terms of the smallest possible axial length of the entire device.
  • the arrangement according to claim 5 is expedient in that it ensures that the most bulged and stretched portion of the tubular bag film is brought into contact with the mandrel tip.
  • FIGS. 1a and 1b illustrated device consists of a cap assembly comprising two on a central portion 10 integrally connected cap parts 11 , 11 ' .
  • Each cap member has a transverse wall 12 , 12 ' , one of them rearwardly (in FIG. 1a pointing upward) circular cylindrical flange 13, 13 ' and each one in the Mittc arranged forward (in FIG. 1a down) outstanding circular cylindrical trough 14, 14 ' on.
  • the front end of a suitably sized tubular bag 15 , 15' is inserted and connected to the flange 13 , 13 ' .
  • the trough 14 , 14 ' serves to accommodate the front, as closed by a clip tubular bag lobes.
  • the thus completed unit of cap assembly and two filled by the manufacturer with pasty masses tubular bags used for insertion into a device, such as in EP-A-0 492 413 is disclosed.
  • the tubular bags are introduced with their protruding from the cap assembly parts in a double-cylinder arrangement.
  • the two pastes can be applied in a mixing ratio corresponding to the cross-sectional ratio of the two tubular bags.
  • each transverse wall 12 , 12 ' is a forward (in FIG. 1a pointing downward depression 16 , 16 ' , at the bottom of an outlet nipple 17 , 17' attaches.
  • the recess 16 is circular cylindrical in cross-section and surrounds centrally a mandrel 18 whose tip 19 is set back relative to the plane of the transverse wall 12 .
  • the length of the mandrel 18 is less than half the depth of the recess 16 .
  • the mandrel 18 is located next to the opening of the outlet nipple 17th
  • FIG. 2 shows, in total approximately segment-shaped.
  • the application pressure causes the part of the tubular pouch 15, 15 ' located above the respective depression 16, 16' to bulge into the depression until it reaches the mandrel tip 19 , 19 ' and thereby bursts open.
  • the length of the mandrel 18 , 18 ' is dimensioned in relation to the depth of the recess 16 , 16' and taking into account the film material so that the mandrel tip 19 , 19 'is not touched until the film is sufficiently overstretched and when bursting as possible forms large opening. In this way, it is ensured that the tubular bag contents can flow unhindered into the depression 16, 16 ' and from there into the outlet nipple 17, 17' .
  • the recess 16, 16 ' forms with the surface of the transverse wall 12 , 12' a rounded as little as possible and - unless it is to be feared damage to the film - substantially sharp edge to hinder slipping of the tubular bag film.
  • the surface of the transverse wall 12 , 12 ' supporting the tubular bag 15 , 15' may be roughened and / or the film may be coated or otherwise provided with anti-slip means.
  • the device after FIG. 2 is different from the after FIGS. 1a and 1b characterized in that the tubular bag scratching the tip 29, 29 ' at the end of a tapered cylindrical tube 28 , 28' is formed, which protrudes coaxially with its other end in the respective outlet nipple 27 , 27 ' and to this via a predetermined breaking point 26 , 26' is integrally formed.
  • the force required for destroying the predetermined breaking point 26 , 26 ' is to be greater than the force required is to burst the tubular bag film by the tip 29 , 29 ' .
  • FIG. 2 In the embodiment according to FIG. 2 are the Tube bag 25 , 25 ' - unlike in FIG. 1a shown - provided with an inwardly drawn closure, so that in the embodiment according to FIGS. 1a and 1b provided tubs 14 , 14 ' unnecessary.
  • FIG. 3 agrees with that FIG. 2 largely match, but the tubes 38 , 38 ' in this case to the cap parts 31, 31' are not formed on predetermined breaking points, but resiliently biased against the emptying direction.
  • the bias voltage originates in each case from a spring 36, 36 ', which is supported on a projection 34, 34' provided in the interior of the outlet nipple 37, 37 ' .
  • the force of the spring 36 , 36 ' is to be dimensioned so that when advancing the dispensing piston exerted by the tube tip 39, 39' on the tubular bag film pressure sufficient to score the tube bag and cause it to burst.
  • FIGS. 4a and 4b is the force acting on the tubular film foil tip 49, 49 ' at the end of an integrally formed on the transverse wall 42, 42' lever 48, 48 'is formed, which extends in its unclaimed position of the transverse wall 42, 42' obliquely upward.
  • the tip 49, 49 ' is located in or near the axis of the respective outlet nipple 47, 47'.
  • FIG. 4a the two tubular bags 45 , 45 'are shown without special end closures. You can like in FIG. 1a or in FIG. 2 and 3 be designed, wherein the transverse walls 42 , 42 ' optionally similar with trough-like formations FIG. 1a can be provided.
  • the cap arrangement is designed for jointly accommodating two tubular bags each.
  • the invention is equally applicable to designs in which a cap assembly is provided for three or more bags, or each of a plurality of bags is provided with a separate cap, or only a single bag with cap is present.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Bag Frames (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The rigid cap (11) has a rear cylindrical flange (13) for holding one end of the bag. The front of the bag (15) is supported by a transverse wall (12) with an outlet (17). Part of the sheeting of the bag is cut by a recess (16) starting from the transverse wall and connecting with the outlet. The recess contains at least one pin (18) whose point (19) facing the bag is set back into the recess in relation to the surface of the transverse wall supporting the bag. The height of the pin is less than half the depth of the recess. The recess with a transverse wall forms a sharp edge.

Description

Eine Vorrichtung zum Entleeren eines eine pastöse Masse enthaltenden Schlauchbeutels ist aus DE 1 536 003 A bekannt. Der Schlauchbeutel wird dort von einem Korb abgestützt, der in einem den Schlauchbeutel aufnehmenden Zylinder eingesetzt ist. Beim Entleeren tritt der Schlauchbeutel in den Korb ein und wird von durch den Korb hindurch ragenden Dornen durchstoßen.A device for emptying a tubular bag containing a pasty mass is made DE 1 536 003 A known. The tubular bag is supported there by a basket which is inserted in a cylinder receiving the tubular bag. When emptying the tubular bag enters the basket and is pierced by protruding through the basket thorns.

DE 9 103 038 U offenbart eine weitere Vorrichtung. Zum Aufbrechen des Schlauchbeutels dient dort ein in die Vorrichtung eingesetztes Messer mit einer quer zur Radialrichtung des Schlauchbeutels verlaufenden Fläche. Zum Entleeren des Schlauchbeutels wird auf dessen hinteres Ende Druck ausgeübt, der sich durch den Beutelinhalt fortsetzt und das vordere Schlauchende gegen die schräge Messerschneide drückt. Dadurch wird eine am vorderen Schlauchbeutelende vorhandene, von der Mitte nach außen verlaufende Falte durchschnitten und der Schlauchbeutel geöffnet. DE 9 103 038 U discloses another device. To break the tubular bag there serves a knife inserted into the device with a transverse to the radial direction of the tubular bag surface. To empty the tubular bag pressure is exerted on the rear end, which continues through the bag contents and presses the front end of the hose against the oblique knife edge. As a result, a fold extending from the center to the outside of the front end of the tubular bag is cut through and the tubular bag is opened.

Zur ordnungsgemäßen Erfüllung ihrer Funktion bei den in der Praxis verwendeten Schlauchbeutelmaterialien benötigt die bekannten Anordnungen verhältnismäßig scharfe Stech- oder schneidelemente, die sich in der Regel nur durch separate Metallteile erzeugen lassen. Dies erhöht die Kosten der in der Regel als Einwegteil ausgebildeten Vorrichtung.For proper fulfillment of their function in the tubular bag materials used in practice, the known arrangements requires relatively sharp piercing or cutting elements, which can usually be produced only by separate metal parts. This increases the cost of the usually designed as a disposable device.

Ist ferner das Werkzeug als feststehendes Element ausgebildet, so steht es einem vollständigen Kolbenvorschub zum restlosen Entleeren des Schlauchbeutels im Wege.Further, the tool is designed as a fixed element, so it is a complete piston feed for completely emptying the tubular bag in the way.

Bei einer weiteren, aus DE 3 826 887 A bekannten Vorrichtung wird der Schlauchbeutel durch einen Dorn aufgestochen, der vor dem Entleeren durch einen an der Kappe vorgesehenen Ausbringstutzen manuell eingeführt und anschließend wieder herausgezogen werden muß. Diese Handhabung ist nicht nur umständlich und zeitaufwendig, sondern birgt auch die Gefahr in sich, daß der Behälterinhalt vorzeitig austritt und die Umgebung verschmutzt und/oder seinerseits in unzulässiger Weise mit Fremdsubstanzen kontaminiert wird. Außerdem ist die bekannte Vorrichtung zum Einsatz bei maschinellen Ausbringvorrichtungen ungeeignet.At another, off DE 3 826 887 A Known device, the tubular bag is pierced by a mandrel, which must be manually introduced before emptying through a cap provided on the Ausbringstutzen and then pulled out again. This handling is not only cumbersome and time consuming, but also carries the risk that the contents of the container leaking prematurely and pollutes the environment and / or in turn contaminated with foreign substances in an inadmissible manner. In addition, the known device is unsuitable for use in mechanical dispensing devices.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Entleeren eines eine pastöse Masse enthaltenden Schlauchbeutels anzugeben, die ein sicheres Öffnen und restloses Entleeren gewährleistet. Außerdem soll die Vorrichtung auch bei maschinell betriebenen Ausbringvorrichtungen einsetzbar sein.The invention has for its object to provide a device for emptying a pasty mass containing tubular bag, which ensures a safe opening and complete emptying. In addition, the device should also be used in machine-operated dispensing devices.

Die erfindungsgemäße Lösung dieser Aufgabe ist im Anspruch 1 gekennzeichnet. Dadurch, daß die zum Aufbrechen des Schlauchbeutels dienende Einrichtung eine dem Beutel zugewandte Spitze aufweist, die die bei beim Aufbringen des Entleerungsdrucks auf den Schlauchbeutel überdehnte Folie zum Platzen bringt, wird ein sicheres Öffnen des Schlauchbeutels auch bei schwierig zu handhabenden Folien und Pasten gewährleistet. Die weitere Tatsache, daß die Spitze im entleerten Zustand des Schlauchbeutels gegenüber der den Schlauchbeutel abstützenden Querwand zurückversetzt ist, gestattet eine restlose Entleerung.The inventive solution to this problem is characterized in claim 1. Characterized in that the device used to break up the tubular bag has a bag-facing tip, which bursts when stretched when applying the emptying pressure on the tubular bag film, a secure opening of the tubular bag is guaranteed even with difficult to handle films and pastes. The further fact that the tip is set back in the deflated state of the tubular bag against the tubular bag supporting transverse wall, allows a complete emptying.

Die Ausgestaltung der Erfindung nach den Ansprüchen 2 und 3 ist in der Funktionsweise effizient und gleichzeitig in der Herstellung unaufwendig.The embodiment of the invention according to claims 2 and 3 is efficient in operation and at the same time inexpensive to manufacture.

Beim Aufbringen von Druck auf das hintere Schlauchbeutelende kann sich der über einer Vertiefung gelegene Teil der Schlauchbeutelfolie in die Vertiefung hinein verformen, bis der dabei am stärksten überdehnte mittlere Bereich der Folie die Spitze eines in der Vertiefung angeordneten Dorns erreicht und dadurch zum Platzen gebracht wird. Das Aufplatzen der überdehnten Folie führt - was für ein ungehindertes Ausbringen des Beutelinhalts günstig ist - zu einer wesentlich größeren Öffnung als sie durch bloßes Aufstechen oder durch Schneiden mit einem Messer erreicht wird.When pressure is applied to the rear end of the tubular bag, the portion of the tubular bag film located above a recess may deform into the recess until the most overstretched central portion of the film reaches the tip of a mandrel disposed in the recess and is thereby burst. The bursting of the over-stretched film leads - which is favorable for an unhindered discharge of the bag contents - to a much larger opening than is achieved by mere piercing or by cutting with a knife.

Die Tatsache, daß die Dornspitze im entleerten Zustand des Schlauchbeutels gegenüber der den Schlauchbeutel stützenden Querwand zurückversetzt ist, gestattet auch eine restlose Entleerung, da der Dorn dem Ausbringkolben nicht im Weg steht. Gleichzeitig liegt in dieser Gestaltung ein Transportschutz, da ohne den zum Öffnen erforderlichen Mindestdruck der Schlauchbeutel die Dornspitze nicht erreichen kann.The fact that the mandrel tip in the deflated state of the tubular bag is set back relative to the transverse bag supporting the tubular bag, also allows a complete emptying, since the mandrel is the Ausbringkolben not in the way. At the same time there is a transport protection in this design, since without the minimum pressure required for opening the tubular bag can not reach the mandrel tip.

Die Ausgestaltung der Erfindung nach Anspruch 2 ist im Hinblick auf eine möglichst geringe axiale Länge der gesamten Vorrichtung günstig.The embodiment of the invention according to claim 2 is favorable in terms of the smallest possible axial length of the entire device.

Die Weiterbildungen der Erfindung nach den Ansprüchen 3 und 4 sollen verhindern, daß die Schlauchbeutelfolie bei ihrer Ausdehnung in die Vertiefung nachrutscht und dadurch möglicherweise nicht ausreichend überdehnt wird, um bei Berührung mit der Dornspitze aufzuplatzen.The developments of the invention according to claims 3 and 4 are intended to prevent the tubular bag film from slipping as it expands into the recess and thereby may not be overstretched enough to rupture upon contact with the mandrel tip.

Die Anordnung nach Anspruch 5 ist insofern zweckmäßig, als sie dafür sorgt, daß der am stärksten ausgewölbte und gedehnte Teil der Schlauchbeutelfolie in Berührung mit der Dornspitze gebracht wird.The arrangement according to claim 5 is expedient in that it ensures that the most bulged and stretched portion of the tubular bag film is brought into contact with the mandrel tip.

Die Erfindung wird nachstehend anhand von Fig. 1 näher erläutert. In den Zeichnungen zeigen

  • Figur 1a und 1b einen Axialschnitt bzw. eine Stirnansicht eines Ausführungsbeispiels einer Vorrichtung zum Entleeren eines Schlauchbeutels,
  • Figur 2 und 3 Axialschnitte durch eine zweite bzw. eine dritte Vorrichtung, und
  • Figur 4a und 4b einen Axialschnitt bzw. eine Stirnansicht einer vierten Vorrichtung.
The invention is described below with reference to Fig. 1 explained in more detail. In the drawings show
  • FIGS. 1a and 1b an axial section and an end view of an embodiment of a device for emptying a tubular bag,
  • FIG. 2 and 3 Axial sections through a second or a third device, and
  • FIGS. 4a and 4b an axial section and an end view of a fourth device.

Die Vorrichtungen nach Fig. 2 bis 4 zeigen nicht beansprüchte Referenzbeispiele.The devices after Fig. 2 to 4 show unclaimed reference examples.

Die in Figur 1a und 1b dargestellte Vorrichtung besteht aus einer Kappenanordnung, die zwei über ein Mittelteil 10 einstückig verbundene Kappenteile 11, 11' umfaßt. Jedes Kappenteil weist eine Querwand 12, 12', einen von dieser nach hinten (in Figur 1a nach oben) weisenden kreiszylindrischen Flansch 13, 13' und eine jeweils in der Mittc angeordnete, nach vorne (in Figur 1a nach unten) herausragende kreiszylindrische Wanne 14, 14' auf. In jedes Kappenteil 11, 11' ist das vordere Ende eines entsprechend dimensionierten Schlauchbeutels 15, 15' eingesetzt und mit dem Flansch 13, 13' verbunden. Die Wanne 14, 14' dient zur Aufnahme des vorderen, etwa durch einen Clip verschlossenen Schlauchbeutelzipfels.In the FIGS. 1a and 1b illustrated device consists of a cap assembly comprising two on a central portion 10 integrally connected cap parts 11 , 11 ' . Each cap member has a transverse wall 12 , 12 ' , one of them rearwardly (in FIG. 1a pointing upward) circular cylindrical flange 13, 13 ' and each one in the Mittc arranged forward (in FIG. 1a down) outstanding circular cylindrical trough 14, 14 ' on. In each cap member 11, 11 ' , the front end of a suitably sized tubular bag 15 , 15' is inserted and connected to the flange 13 , 13 ' . The trough 14 , 14 ' serves to accommodate the front, as closed by a clip tubular bag lobes.

Die so fertiggestellte Einheit aus Kappenanordnung und zwei vom Hersteller mit pastösen Massen gefüllten Schlauchbeuteln dient zum Einsetzen in eine Vorrichtung, wie sie etwa in EP-A-0 492 413 offenbart ist. Die Schlauchbeutel werden dabei mit ihren aus der Kappenanordnung herausragenden Teilen in eine Doppelzylinder-Anordnung eingeführt. Durch gemeinsamen maschinellen Vorschub von Kolben lassen sich die beiden Pasten in einem dem Querschnittsverhältnis der beiden Schlauchbeutel entsprechenden Mischungsverhältnis ausbringen.The thus completed unit of cap assembly and two filled by the manufacturer with pasty masses tubular bags used for insertion into a device, such as in EP-A-0 492 413 is disclosed. The tubular bags are introduced with their protruding from the cap assembly parts in a double-cylinder arrangement. By common mechanical feed of the pistons, the two pastes can be applied in a mixing ratio corresponding to the cross-sectional ratio of the two tubular bags.

In jeder Querwand 12, 12' ist eine nach vorne (in Figur 1a nach unten) weisende Vertiefung 16, 16' ausgebildet, an deren Boden ein Austrittsnippel 17, 17' ansetzt.In each transverse wall 12 , 12 ' is a forward (in FIG. 1a pointing downward depression 16 , 16 ' , at the bottom of an outlet nipple 17 , 17' attaches.

Die Vertiefung 16 ist im Querschnitt kreiszylindrisch und umgibt zentrisch einen Dorn 18, dessen Spitze 19 gegenüber der Ebene der Querwand 12 zurückgesetzt ist. Vorzugsweise beträgt die Länge des Dorns 18 weniger als die Hälfte der Tiefe der Vertiefung 16. Der Dorn 18 befindet sich neben der Öffnung des Austrittsnippels 17.The recess 16 is circular cylindrical in cross-section and surrounds centrally a mandrel 18 whose tip 19 is set back relative to the plane of the transverse wall 12 . Preferably, the length of the mandrel 18 is less than half the depth of the recess 16 . The mandrel 18 is located next to the opening of the outlet nipple 17th

Bei der genannten kreisrunden Querschnittsform der Vertiefung 16 handelt es sich um ein bevorzugtes Ausführungsbeispiel. Je nach Folienmaterial, Beutelinhalt und Anzahl der in der Vertiefung angeordneten Dorne 18 können andere, z.B. ovale, Querschnittsformen zweckmäßig sein.In the mentioned circular cross-sectional shape of the recess 16 is a preferred embodiment. Depending on the film material, bag contents and number of mandrels 18 arranged in the recess, other, for example oval, cross-sectional shapes may be expedient.

Am Boden der Vertiefung 16' sind zwei Dorne 18' angeformt, die auf beiden Seiten der Öffnung des Austrittsnippels 17' stehen. Auch die Spitzen 19' der Dorne 18' sind gegenüber der Ebene der Querwand 12' zurückgesetzt. Die Vertiefung 16' ist, wie aus Figur 2 hervorgeht, insgesamt etwa segmentförmig.At the bottom of the recess 16 ' two mandrels 18' are formed, which stand on both sides of the opening of the outlet nipple 17 ' . The tips 19 'of the mandrels 18' are compared to the plane of the transverse wall 12 ' reset. The recess 16 ' is as out FIG. 2 shows, in total approximately segment-shaped.

Beim ersten Vorschieben der oben erwähnten Kolben bewirkt der Ausbringdruck, daß sich der über der jeweiligen Vertiefung 16, 16' gelegene Teil des Schlauchbeutels 15, 15' in die Vertiefung hinein auszuwölben beginnt, bis er die Dornspitze 19, 19' erreicht und dadurch aufplatzt. Die Länge des Dorns 18, 18' ist im Verhältnis zur Tiefe der Vertiefung 16, 16' und unter Berücksichtigung des Folienmaterials so bemessen, daß die Dornspitze 19, 19' erst berührt wird, wenn die Folie ausreichend stark überdehnt ist und beim Aufplatzen eine möglichst große Öffnung bildet. Auf diese Weise wird erreicht, daß sich der Schlauchbeutelinhalt ungehindert in die Vertiefung 16, 16' und von dort in den Austrittsnippel 17, 17' ergießen kann.During the first advance of the abovementioned pistons, the application pressure causes the part of the tubular pouch 15, 15 ' located above the respective depression 16, 16' to bulge into the depression until it reaches the mandrel tip 19 , 19 ' and thereby bursts open. The length of the mandrel 18 , 18 ' is dimensioned in relation to the depth of the recess 16 , 16' and taking into account the film material so that the mandrel tip 19 , 19 'is not touched until the film is sufficiently overstretched and when bursting as possible forms large opening. In this way, it is ensured that the tubular bag contents can flow unhindered into the depression 16, 16 ' and from there into the outlet nipple 17, 17' .

Die Vertiefung 16, 16' bildet mit der Fläche der Querwand 12, 12' eine möglichst wenig verrundete und - soweit nicht eine Beschädigung der Folie zu befürchten ist - im wesentlichen scharfe Kante, um ein Nachrutschen der Schlauchbeutelfolie zu behindern. Zu dem gleichen Zweck kann die den Schlauchbeutel 15, 15' stützende Oberfläche der Querwand 12, 12' gerauht und/oder die Folie mit ein Rutschen behindernden Mitteln beschichtet oder in sonstiger Weise versehen sein.The recess 16, 16 ' forms with the surface of the transverse wall 12 , 12' a rounded as little as possible and - unless it is to be feared damage to the film - substantially sharp edge to hinder slipping of the tubular bag film. For the same purpose, the surface of the transverse wall 12 , 12 ' supporting the tubular bag 15 , 15' may be roughened and / or the film may be coated or otherwise provided with anti-slip means.

Die Vorrichtung nach Figur 2 unterscheidet sich von der nach Figur 1a und 1b dadurch, daß die den Schlauchbeutel ritzende Spitze 29, 29' am Ende eines abgeschrägten zylindrischen Röhrchens 28, 28' ausgebildet ist, der mit seinem anderen Ende koaxial in den betreffenden Austrittsnippel 27, 27' hineinragt und an diesen über eine Sollbruchstelle 26, 26' einstückig angeformt ist.The device after FIG. 2 is different from the after FIGS. 1a and 1b characterized in that the tubular bag scratching the tip 29, 29 ' at the end of a tapered cylindrical tube 28 , 28' is formed, which protrudes coaxially with its other end in the respective outlet nipple 27 , 27 ' and to this via a predetermined breaking point 26 , 26' is integrally formed.

Beim Herstellen und Füllen der Schlauchbeutel 25, 25' wird darauf geachtet, daß diese im Bereich des jeweiligen Röhrchens 28, 28' locker liegen und die jeweilige Spitze 29, 29' nicht oder nur mit vcrnachlässigbarem Druck an der Schlauchbeutelfolie anliegt. Beim Vorschieben der Ausbringkolben erhöht sich dieser Druck, bis die Spitze den Schlauchbeutel ritzt und zum Platzen bringt. Der Schlauchbeutelinhalt kann sich dann über das die Spitze 29, 29' bildende Röhrchen 28, 28' unmittelbar in den Austrittsnippel 27, 27' ergießen.When making and filling the tubular bags 25 , 25 ' , care is taken that they are loose in the region of the respective tube 28 , 28' and that the respective tip 29 , 29 ' does not bear on the tubular bag film or only with negligible pressure. As the dispensing pistons advance, this pressure increases until the tip scratches and ruptures the pouch. The tubular bag contents can then pour directly into the outlet nipple 27, 27 ' via the tubes 28, 28' forming the tip 29, 29 ' .

Erreicht der Ausbringkolben die betreffende Spitze 29, 29', so führt die weitere Vorschubbewegung dazu, daß die Sollbruchstelle 26, 26' bricht und das Röhrchen 28, 28' nun in den Austrittsnippel 27, 27' geschoben wird. Auf diese Weise ist eine restlose Entleerung des Schlauchbeutels sichergestellt.When the dispensing piston reaches the relevant point 29, 29 ', the further feed movement causes the predetermined breaking point 26, 26' to break and the tube 28, 28 'is now pushed into the outlet nipple 27 , 27' . In this way, a complete emptying of the tubular bag is ensured.

Die zur Zerstörung der Sollbruchstelle 26, 26' erforderliche Kraft ist unter Berücksichtigung der Eigenschaften, insbesondere der Zähigkeit, der zur Verwendung kommenden Schlauchbeutelfolien und der Eigenschaften, insbesondere der Viskosität, der Schlauchbeutelinhalte so zu bemessen, daß sie größer ist als diejenige Kraft, die nötig ist, um die Schlauchbeutelfolie durch die Spitze 29, 29' zum Platzen zu bringen.Taking into account the properties, in particular the toughness, the tubular bag films used for use and the properties, in particular the viscosity, of the tubular bag contents, the force required for destroying the predetermined breaking point 26 , 26 ' is to be greater than the force required is to burst the tubular bag film by the tip 29 , 29 ' .

In der Ausführungsform nach Figur 2 sind die Schlauchbeutel 25, 25' - anders als in Figur 1a gezeigt - mit einem nach innen eingezogenen Verschluß versehen, so daß sich die bei der Ausführungsform nach Figur 1a und 1b vorgesehenen Wannen 14, 14' erübrigen. Dies führt zu einer einfacheren Gestaltung der Querwände 22, 22', kann aber vom Gesichtspunkt der restlosen Schlauchbeutel-Entleerung weniger günstig sein. Daher kann die bei dem ersten Ausführungsbeispiel angewandte wannenartige Gestaltung der Querwände auch bei der Ausführungsform nach Figur 2 angewandt werden. Umgekehrt ist die Gestaltung nach Figur 2 auch bei der Ausführungsform nach Figur 1a und 1b möglich.In the embodiment according to FIG. 2 are the Tube bag 25 , 25 ' - unlike in FIG. 1a shown - provided with an inwardly drawn closure, so that in the embodiment according to FIGS. 1a and 1b provided tubs 14 , 14 ' unnecessary. This leads to a simpler design of the transverse walls 22, 22 ', but may be less favorable from the point of view of the complete bag evacuation. Therefore, the trough-like configuration of the transverse walls used in the first embodiment can also be applied to the embodiment FIG. 2 be applied. Conversely, the design is after FIG. 2 also in the embodiment according to FIGS. 1a and 1b possible.

Das Ausführungsbeispiel nach Figur 3 stimmt mit dem nach Figur 2 weitgehend überein, jedoch sind die Röhrchen 38, 38' in diesem Fall an die Kappenteile 31, 31' nicht über Sollbruchstellen angeformt, sondern entgegen der Entleerungsrichtung federnd vorgespannt. Die Vorspannung stammt jeweils aus einer Feder 36, 36', die sich an einem im Innern des Austrittsnippels 37, 37' vorgesehenen Vorsprung 34, 34' abstützt.The embodiment according to FIG. 3 agrees with that FIG. 2 largely match, but the tubes 38 , 38 ' in this case to the cap parts 31, 31' are not formed on predetermined breaking points, but resiliently biased against the emptying direction. The bias voltage originates in each case from a spring 36, 36 ', which is supported on a projection 34, 34' provided in the interior of the outlet nipple 37, 37 ' .

Wiederum ist die Kraft der Feder 36, 36' so zu bemessen, daß beim Vorschieben der Ausbringkolben der von der Röhrchenspitze 39, 39' auf die Schlauchbeutelfolie ausgeübte Druck ausreicht, um den Schlauchbeutel zu ritzen und zum Platzen zu bringen.Again, the force of the spring 36 , 36 ' is to be dimensioned so that when advancing the dispensing piston exerted by the tube tip 39, 39' on the tubular bag film pressure sufficient to score the tube bag and cause it to burst.

In der letzten Entleerungsphase trifft der Kolben unmittelbar auf das betreffende Röhrchen 38, 38' und schiebt dieses gegen die Kraft der Feder 36, 36' so weit in den Austrittsnippel 37, 37', daß der Schlauchbeutel restlos entleert werden kann.In the final discharge phase of the piston meets directly on the tube in question 38 , 38 ' and pushes this against the force of the spring 36, 36' so far in the outlet nipple 37, 37 ', that the tubular bag can be completely emptied.

Bei der Ausführungsform nach Figur 4a und 4b ist die auf die Schlauchbeutelfolie einwirkende Spitze 49, 49' am Ende eines an der Querwand 42, 42' angeformten Hebels 48, 48' ausgebildet, der in seiner unbeanspruchten Lage von der Querwand 42, 42' schräg nach oben verläuft. Die Spitze 49, 49' befindet sich dabei in oder nahe der Achse des jeweiligen Austrittsnippels 47, 47'. In the embodiment according to FIGS. 4a and 4b is the force acting on the tubular film foil tip 49, 49 ' at the end of an integrally formed on the transverse wall 42, 42' lever 48, 48 'is formed, which extends in its unclaimed position of the transverse wall 42, 42' obliquely upward. The tip 49, 49 ' is located in or near the axis of the respective outlet nipple 47, 47'.

Beim Vorschieben der Ausbringkolben wird der jeweilige Schlauchbeutel 45, 45' gegen die Spitze 49, 49' gedrückt, so daß diese wiederum die Schlauchbeutelfolie ritzt und zum Platzen bringt. Spätestens beim vollständigen Vorschieben der Ausbringkolben legt sich der Hebel 48, 48' im wesentlichen flach auf die Querwand 42, 42', so daß er einem restlosen Entleeren des Schlauchbeutels nicht im Wege steht.When advancing the Ausbringkolben the respective tubular bag 45, 45 ' pressed against the tip 49, 49' , so that this in turn scratches the tubular bag film and causes it to burst. At the latest when completely advancing the dispensing piston sets the lever 48, 48 ' substantially flat on the transverse wall 42, 42', so that it is not a complete emptying of the tubular bag in the way.

Um zu verhindern, daß der Hebel 48' in dem in Figur 4a und 4b rechten Kappenteil 41', der mit dem verhältnismäßig dünnen Austrittsnippel 47' versehen ist, dessen Öffnung versperrt, kann der Hebel 48' entgegen der Darstellung in Figur 4b gegenüber der Achse des Austrittsnippels 47' geringfügig seitlich versetzt sein.To prevent the lever 48 ' in the in FIGS. 4a and 4b right cap portion 41 ', which is provided with the relatively thin exit nipple 47' , the opening blocks, the lever 48 ' opposite to the representation in FIG. 4b be slightly laterally offset relative to the axis of the outlet nipple 47 ' .

In Figur 4a sind die beiden Schlauchbeutel 45, 45' ohne besondere Endverschlüsse dargestellt. Sie können wie in Figur 1a oder in Figur 2 und 3 gestaltet sein, wobei die Querwände 42, 42' gegebenenfalls mit wannenartigen Ausformungen ähnlich Figur 1a versehen sein können.In FIG. 4a the two tubular bags 45 , 45 'are shown without special end closures. You can like in FIG. 1a or in FIG. 2 and 3 be designed, wherein the transverse walls 42 , 42 ' optionally similar with trough-like formations FIG. 1a can be provided.

In den oben beschriebenen Ausführungsbeispielen ist die Kappenanordnung zur gemeinsamen Aufnahme jeweils zweier Schlauchbeutel gestaltet. Die Erfindung ist in gleicher Weise auch bei Gestaltungen anwendbar, bei denen eine Kappenanordnung für drei oder mehr Beutel vorgesehen oder jeder von mehreren Beuteln mit einer getrennten Kappe versehen oder nur ein einziger Beutel mit Kappe vorhanden ist.In the exemplary embodiments described above, the cap arrangement is designed for jointly accommodating two tubular bags each. The invention is equally applicable to designs in which a cap assembly is provided for three or more bags, or each of a plurality of bags is provided with a separate cap, or only a single bag with cap is present.

Claims (5)

  1. A device for dispensing a pasty substance comprising a film tube (15) containing the substance and a substantially rigid cap (11) having a rear cylindrical flange (13) for receiving an end of the film tube, a transverse wall (12) having a dispensing opening (17), and a tip (19) facing the film tube for rupturing the same, the film tube (15) being supported in the forward direction by the transverse wall (12) of the cap (11),
    wherein the film tube (15) is connected to the flange (13) of the cap so that, upon application the dispensing pressure, the tube film is over-stretched and caused by the tip (19) to burst,
    wherein the tip is formed on a spike (18) extending in the axial direction of the film tube (15),
    wherein the spike (18) is arranged within a recess (16) provided in the transverse wall (12) and surrounding the dispensing opening (17), and
    wherein the tip (19) of the spike is offset from the plane of the transverse wall (12) supporting the film tube (15) into the recess (16).
  2. The device of claim 1, wherein the height of the spike (18) is less than half the depth of the recess (16).
  3. The device of any preceding claim, wherein the recess (16) and the transverse wall (12) together form a substantially sharp edge.
  4. The device of any preceding claim, wherein the tube film and/or the surface of the transverse wall (12) supporting the film tube (15) is provided with anti-sliding means.
  5. The device of any preceding claim, wherein the recess (16) has a substantially circular cross-section substantially completely surrounding the tip (19) of the spike.
EP97100817A 1996-02-05 1997-01-20 Apparatus for emptying a sleeve-bag Expired - Lifetime EP0787655B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29724380U DE29724380U1 (en) 1996-02-05 1997-01-20 Device for emptying a tubular bag

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DE29601917U 1996-02-05
DE29601917 1996-02-05
DE29606895U 1996-04-16
DE29606895U DE29606895U1 (en) 1996-04-16 1996-04-16 Device for emptying a tubular bag

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EP0787655A1 EP0787655A1 (en) 1997-08-06
EP0787655B1 EP0787655B1 (en) 2003-05-28
EP0787655B2 true EP0787655B2 (en) 2009-07-15

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EP (1) EP0787655B2 (en)
JP (1) JP3822302B2 (en)
AT (1) ATE241504T1 (en)
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CZ (1) CZ294323B6 (en)
DE (1) DE59710147D1 (en)
DK (1) DK0787655T3 (en)
ES (1) ES2196199T5 (en)
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HUP9700276A1 (en) 1997-11-28
NO970491D0 (en) 1997-02-04
PL182421B1 (en) 2001-12-31
ES2196199T3 (en) 2003-12-16
US6012610A (en) 2000-01-11
ATE241504T1 (en) 2003-06-15
NO970491L (en) 1997-08-06
CA2196005C (en) 2006-04-04
HU9700276D0 (en) 1997-03-28
PL318257A1 (en) 1997-08-18
AU719198B2 (en) 2000-05-04
SK283911B6 (en) 2004-05-04
ES2196199T5 (en) 2009-12-02
DK0787655T3 (en) 2003-06-23
JP3822302B2 (en) 2006-09-20
CZ23797A3 (en) 1997-12-17
CZ294323B6 (en) 2004-11-10
AU1230097A (en) 1997-08-14
CA2196005A1 (en) 1997-08-06
JPH09301448A (en) 1997-11-25
SK13197A3 (en) 1997-09-10
EP0787655A1 (en) 1997-08-06
DE59710147D1 (en) 2003-07-03
EP0787655B1 (en) 2003-05-28

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