EP0165818B1 - Folienantriebsvorrichtung - Google Patents

Folienantriebsvorrichtung Download PDF

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Publication number
EP0165818B1
EP0165818B1 EP19850304419 EP85304419A EP0165818B1 EP 0165818 B1 EP0165818 B1 EP 0165818B1 EP 19850304419 EP19850304419 EP 19850304419 EP 85304419 A EP85304419 A EP 85304419A EP 0165818 B1 EP0165818 B1 EP 0165818B1
Authority
EP
European Patent Office
Prior art keywords
film
belt
speed
roller
motor
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
Application number
EP19850304419
Other languages
English (en)
French (fr)
Other versions
EP0165818A2 (de
EP0165818A3 (en
Inventor
Alfred Alexander Taylor
John Paul North
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.)
Cessione taylor Alfred Alexander
Original Assignee
Individual
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
Priority claimed from AU43752/85A external-priority patent/AU574191B2/en
Application filed by Individual filed Critical Individual
Publication of EP0165818A2 publication Critical patent/EP0165818A2/de
Publication of EP0165818A3 publication Critical patent/EP0165818A3/en
Application granted granted Critical
Publication of EP0165818B1 publication Critical patent/EP0165818B1/de
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing 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
    • B65B9/10Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20Enclosing 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
    • B65B9/2014Tube advancing means
    • B65B9/2021Tube advancing means combined with longitudinal welding devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing 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
    • B65B9/10Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20Enclosing 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
    • B65B9/207Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously

Definitions

  • the present invention relates to a method of packaging a product in discrete units.
  • a tubular bag material In the packaging of product which comprises a plurality of discrete units, it is common for a tubular bag material to be formed from sheet material, and the tubular bag material delivered to a filling head whereat the product is delivered to the interior of the tube material.
  • the material is subsequently sealed at spaced intervals and discrete bags severed from the tubular material.
  • the sheet material generally comprises a plastic film which is sealed by heat or other means to form the tubular material.
  • the tube material is also sealed transverse of its longitudinal direction of extension, so as to form the discrete bag. This sealed area is also severed by a knife so that the discrete bags are separated from the tubular material.
  • the speed of the film through the machine determines the period of time to which the plastic film is exposed to the sealing heads which form the discrete bags.
  • the temperature of the sealing heads must be adjusted to match the speed of the film material so that proper sealing does take place.
  • the invention relates a method of driving film material through a packaging machine which has means to supply said film material, means to bring the film into a tubular form and sealing means to engage intermittently and to seal transversely the tubular film to form discrete bags.
  • a method is known for instance from GB-A-2056940.
  • the method is characterised by driving the material continuously at a first velocity while the sealing means engage the film material and at another velocity independent of the first velocity to determine the production rate of the machine.
  • the machine also comprises a pair of endless belts having generally parallel co-extensive portions engaging said bag material to move same through said machine, motor means drivingly attached to said endless belts to drive same so that said belt portions have the same velocities and are moving in the same direction, and control means to control said motor means to govern the speed of said endless belts so that said sealing means is engaged with said bag material for a predetermined fixed period of time.
  • FIG. 1 there is schematically depicted a drive unit 10 of a packaging machine which unit 10 is operable on a continuous basis.
  • the packaging machine includes means to deliver sheet film material 11 to former 12 which forms the sheet material 11 into a tubular configuration.
  • the tubular material is moved through the packaging machine by a pair of endless belts 13 which are provided with a plurality of holes 14 which face the tubular material.
  • Located at the rear of the belt 13 is a plennum chamber 15 to which there is delivered a vacuum by means of conduit 16.
  • the chamber 15 is open to an inside surface of the belt 13 so that the vacuum is applied to the holes 14 so that the tubular material is held against the belts 13.
  • the belts 13 pass around rollers 17 of which two at least are driven.
  • rollers 17 could each be driven by a shaft 18 coupled to a worm drive unit 19.
  • the drive unit 19 would be connected to an electric motor which would be controlled to vary the peripheral speed of the belt 13.
  • the motor could be a stepping, servo, computer controlled or any other motor having suitable control characteristics.
  • the speed of the belt 13 would be controlled so that the tubular material delivered to the sealing heads would be travelling at a predetermined velocity so that the sealing heads are in contact with the tubular material for a set period of time. Thereafter, the motors would increase the speed of the endless belts 13 to increase the production rate of the packaging machine or alternatively decrease the speed of the tubular material, to achieve a decrease in the output of the packaging machine. Accordingly, the speed of the endless belt 13 may be adjusted to accommodate different products and/or sheet packaging material 11.
  • FIG 2 there is schematically depicted three graphs which illustrate typical velocity profiles of the endless belts 13.
  • the period of time D is the period during which the sealing heads are in contact with the tubular film material. Thereafter, the speed of the film is decreased and subsequently increased.
  • the period of time D is the same, and the speed of the film is only slightly decreased.
  • the period of the interval D is the same with the speed of the film increased after the period D to increase the production rate of the machine. With the period of time D constant, the velocity is also held constant for that time.
  • a drive roller 21 is provided around which the film 11 passes.
  • the film 11 also passes around an idler roller 23 and is sandwiched between the film drive roller 21 and a further idler roller 22.
  • the roller 21 is attached to a servo motor 22 which determines the velocity of the film 11 as required.
  • the servo motor 22 could be driven so as to provide the velocity profile of any one of the velocity profiles depicted in Figure 2.
  • FIG 4 wherein the tubular material 24 is more fully depicted relative to a backing bar 20 as provided in Figures 1 and 3.
  • the tubular material 24 overlaps at portions 25, which portions 25, are heat sealed via heat provided by the sealing head 26.
  • the sealing head 26 is located within the chamber 15.
  • This particular arrangement in respect of sealingly tubular material 24 is particularly different from the prior art in that the overlap portions 25 are engaged by the belt 13 as well as the opposite side of the tubular material 24. Conventionally, the other two sides of the tubular material are generally engaged. This provides specific advantages in respect of the continuous sealing of the tubular material 24, which is driven in a continuous manner past the heating head 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Claims (9)

1. Verfahren zum antriebsmäßigen Bewegen von Folienmaterial (11) durch eine Verpackungsmaschine, die eine Einrichtung zum Zuführen des Folienmaterials, eine Einrichtung (12) zum Verbringen der Folie in eine Schlauchform sowie eine Verschließeinrichtung zum intermittierenden in Eingriff Treten mit der schlauchförmigen Folie und zum Verschließen derselben in Querrichtung zur Bildung einzelner Beutel aufweist; wobei das Verfahren dadurch gekennzeichnet ist, daß das Material kontinuierlich mit einer ersten Geschwindigkeit angetrieben wird, während die Verschließeinrichtung mit dem Folienmaterial in Eingriff tritt, und daß das Material kontinuierlich mit einer von der ersten Geschwindigkeit unabhängigen, weiteren Geschwindigkeit zum Festlegen der Produktionsrate der Maschine angetrieben wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß Überlappungsbereiche (25) des Beutelmaterials (24) bei sandwichartiger Anordnung zwischen einer Stützleiste (20) und einem Antriebsriemen (13) miteinander verbunden weden.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß außerdem der Riemen durch eine erste Walze (21) angetrieben wird, die zum Festlegen der Geschwindigkeit des Folienmaterials durch eine Motoreinrichtung angetrieben wird, und daß außerdem das Beutelmaterial durch Motoren mit konstantem Drehmoment angetrieben wird, deren Drehzahl durch die Drehzahl der Walze (21) bestimmt wird.
4. Verfahren nach einem der vorausgehenden Ansprüche, dadurch gekennzeichnet, daß die Maschine ein Paar Endlosriemen (13), die allgemein parallele, erstreckungsgleiche, mit dem Folienmaterial (11) in Eingriff tretende Bereiche zum Bewegen des Folienmaterials (11) durch die Maschine aufweisen, eine an den Endlosriemen (13) antriebsmäßig angebrachte erste Motoreinrichtung zum derartigen Antreiben derselben, daß die Riemenbereiche dieselbe Geschwindigkeit haben und sich in derselben Richtung bewegen, sowie eine Steuereinrichtung zum Steuern des ersten Motors zum Festlegen der Geschwindigkeit der Endlosriemen (13) in einer derartigen Weise, daß die Verschließeinrichtung für eine vorbestimmte, festgelegte Zeitdauer mit dem Beutelmaterial in Eingriff tritt, umfaßt.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß jeder der Riemen um ein Paar Rollen (17) geführt wird und eine Rolle jedes Rollenpaares durch die erste Motoreinrichtung angetrieben wird.
6. Verfahren nach Anspruch 4 oder Anspruch 5, dadurch gekennzeichnet, daß es sich bei der Motoreinrichtung um einen einzelnen ersten Motor handelt, der durch eine Schneckenantriebseinheit (19) mit den beiden angetriebenen Rollen (17) gekoppelt ist.
7. Verfahren nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß jeder Riemen (13) mit einer Mehrzahl von in Längsrichtung des Riemens (13) voneinander beabstandeten Löchern (14) versehen wird und daß die Maschine außerdem eine angrenzend an jeden Riemen vorgesehene Kammereinrichtung (15) besitzt, der ein Vakuum zugeführt wird, so daß das schlauchförmige Material (11) gegen die Riemen (13) gehalten wird.
8. Verfahren nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die Steuereinrichtung eine Folienantriebswalze (21) aufweist, um die das Folien-Flachmaterial (11) läuft, bevor es den Endlosriemen (13) zugeführt wird, daß eine weitere Motoreinrichtung (22) zum Festlegen der Drehzahl der Folienantriebsrolle (21) antriebsmäßig mit dieser verbunden wird, und daß es sich bei der ersten Motoreinrichtung um Motoren mit konstantem Drehmoment handelt, die das Folien-Flachmaterial (11) mit einer Geschwindigkeit antreiben, die durch die weitere Motoreinrichtung derart vorgegeben wird, daß das Beutelmaterial (11) für eine vorbestimmte, festgelegte Zeitdauer mit der Verschließeinrichtung (26) in Eingriff tritt.
9. Verfahren nach Anspruch 7 oder Anspruch 8, dadurch gekennzeichnet, daß außerdem eine Stützleiste (20) vorhanden ist, die in feststehender, paralleler, erstreckungsgleicher Beziehung zu miteinander zu verbindenden Überlappungsbereichen (25) des Beutelmaterials (24) angebracht wird, und daß die Überlappungsbereiche (25) zwischen der Stützleiste (20) und einem der Riemenbereiche sandwichartig angeordnet werden, und daß außerdem ein Heizkopf (26) vorgesehen wird zum Heißverschweißen der Beutelmaterial-Bereiche, während diese zwischen der Stützleiste (20) und dem Riemenbereich sandwichartig angeordnet sind.
EP19850304419 1984-06-20 1985-06-20 Folienantriebsvorrichtung Expired EP0165818B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU5595/84 1984-06-20
AUPG559584 1984-06-20
AU43752/85A AU574191B2 (en) 1984-06-20 1985-06-17 Film drive unit

Publications (3)

Publication Number Publication Date
EP0165818A2 EP0165818A2 (de) 1985-12-27
EP0165818A3 EP0165818A3 (en) 1986-12-17
EP0165818B1 true EP0165818B1 (de) 1989-08-30

Family

ID=25626475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850304419 Expired EP0165818B1 (de) 1984-06-20 1985-06-20 Folienantriebsvorrichtung

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Country Link
EP (1) EP0165818B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315067A1 (de) * 1993-05-06 1994-11-10 Mesoma Hans Guenter Kauck Gmbh Verfahren und Vorrichtung zur Bildung einer Schweiß- oder Siegelnaht bei einem thermoplastischen Hüllstoff
DE19726205A1 (de) * 1997-06-20 1998-12-24 Rovema Gmbh Vorrichtung zum Verschweißen einer Längssiegelnaht und zum Weitertransport einer Folienbahn
DE102006025831B4 (de) * 2006-06-02 2013-10-31 Rovema Gmbh Vorrichtung zum Verschweißen von Kunststoff zu Verpackungszwecken (Torquemotor)
WO2023012285A1 (en) * 2021-08-05 2023-02-09 Vmi Holland B.V. Packaging device and method for packaging discrete medicaments in pouches

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727707A (en) * 1986-12-15 1988-03-01 Kliklok Corporation Packaging film feeding apparatus and method
EP0275181B1 (de) * 1987-01-14 1993-05-12 Alfred Alexander Taylor Filmantriebseinheit für eine Verpackungsmaschine
JP3512127B2 (ja) * 1994-12-23 2004-03-29 株式会社イシダ 製袋包装機の横シ−ル機構

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762663A (en) * 1971-11-30 1973-10-02 Ge C Static means for generating inertia compensation signals in reel drives
US4043098A (en) * 1976-08-26 1977-08-23 Package Machinery Company Vertical form, fill and seal packaging machine with improved back-up bar for longitudinal sealing
US4136505A (en) * 1977-11-11 1979-01-30 Package Machinery Company Tubeless vertical form, fill and seal packaging machine with improved feed means
US4218863A (en) * 1978-11-22 1980-08-26 American Can Company Continuous motion wrapping machine
US4288965A (en) * 1979-08-27 1981-09-15 Hayssen Manufacturing Company Form-fill-seal packaging method and apparatus
DE3113634A1 (de) * 1981-04-04 1982-10-21 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum herstellen von beutelpackungen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315067A1 (de) * 1993-05-06 1994-11-10 Mesoma Hans Guenter Kauck Gmbh Verfahren und Vorrichtung zur Bildung einer Schweiß- oder Siegelnaht bei einem thermoplastischen Hüllstoff
DE4315067C2 (de) * 1993-05-06 1999-01-21 Mesoma Hans Guenter Kauck Gmbh Verfahren und Vorrichtung zur Bildung einer Schweiß- oder Siegelnaht bei einem thermoplastischen Hüllstoff
DE19726205A1 (de) * 1997-06-20 1998-12-24 Rovema Gmbh Vorrichtung zum Verschweißen einer Längssiegelnaht und zum Weitertransport einer Folienbahn
DE102006025831B4 (de) * 2006-06-02 2013-10-31 Rovema Gmbh Vorrichtung zum Verschweißen von Kunststoff zu Verpackungszwecken (Torquemotor)
WO2023012285A1 (en) * 2021-08-05 2023-02-09 Vmi Holland B.V. Packaging device and method for packaging discrete medicaments in pouches

Also Published As

Publication number Publication date
EP0165818A2 (de) 1985-12-27
EP0165818A3 (en) 1986-12-17

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