WO2006066895A1 - Dispositif d'emballage tubulaire equipe de deux moyens de formage et de remplissage - Google Patents

Dispositif d'emballage tubulaire equipe de deux moyens de formage et de remplissage Download PDF

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Publication number
WO2006066895A1
WO2006066895A1 PCT/EP2005/013785 EP2005013785W WO2006066895A1 WO 2006066895 A1 WO2006066895 A1 WO 2006066895A1 EP 2005013785 W EP2005013785 W EP 2005013785W WO 2006066895 A1 WO2006066895 A1 WO 2006066895A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
packaging machine
lanes
machine according
tension
Prior art date
Application number
PCT/EP2005/013785
Other languages
English (en)
Other versions
WO2006066895A8 (fr
Inventor
Peter Joseph Hendriks
Rudolf Adrianus Van Gulik
Joseph Johan Maria Van Rens
Original Assignee
Cfs Weert B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cfs Weert B.V. filed Critical Cfs Weert B.V.
Publication of WO2006066895A1 publication Critical patent/WO2006066895A1/fr
Publication of WO2006066895A8 publication Critical patent/WO2006066895A8/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/06—Cutting webs along their longitudinal direction

Definitions

  • the present invention relates to a packaging machine, especially a vertical-type - packaging machine for producing tubular bags from a planar film, which is stored on one role, whereas the machine comprises at least two forming shoulders and at least two filling tubes and cutting means to cut the planar film into a number of lanes of film equivalent to the number of forming shoulders. These machine facilitate the production of packages in two or more lanes on one machine simultaneously.
  • the inventive packaging machines are very easily produced and operated and allow the production of more than 120 bags per lane per minute. Due to the early cutting of the film into two lanes, the inertia of the film guiding and/or tensioning means, for example the rolls, that are needed to guide the film lanes can be reduced in length and in diameter and/or less guiding means, i.e. rolls are needed.
  • the packaging machine according to the present invention is preferably a vertical packaging machine for producing tubular bags from a planar film. The cross-section of these bags can be of every known shape, for example round, oval, triangular, rectangular or squared.
  • This planar film is firstly formed into a tube, and then this tube is sealed with a longitudinal seal. After a first cross seal has been applied at the bottom, the tube is filled with the packaging item, before another cross seal at the top is applied. Subsequently, the completed, filled bag is cut from the film.
  • the packaging machine comprises at least two forming shoulders, in order to form two separate tubes of film, and at least two filling tubes to fill the produced tubes with the product.
  • Each forming shoulder is supplied with one lane of planar film.
  • the planar film which is, according to this embodiment of the present invention on one single roll, has to be cut into two lanes O This is accomplished by cutting means.
  • these cutting means are located at least within a short distance after the film roll.
  • This inventive feature of the present invention has the advantage that the inertia of the guiding- and/or tensioning-means of the films has less inertia, so that the intermittend transportation of the film can be handled much more easily and accurately. Consequently, the film will not get off the forming shoulders and will not move sideways. Thus, no open longitudinal seal will be produced or no problems with the bag length will occur.
  • the inertia of the guiding- and/or tensioning-means is reduced by the utilization of less and/or smaller rollers, which are needed to guide the film, in length and/or in diameter. Due to the improved film guidance higher production-rates can be achived.
  • the film lanes needed are separated up-front; i. e. they are delivered on separate film rolls.
  • This embodiment of the present invention has the advantage that no cutting means are needed and that all guiding rolls can be designed with less length and/or less diameter.
  • Normal film rolls i. e. film rolls that are used on a machine with only one forming shoulder and filling tube, can be also used on the inventive machine.
  • this machine has control means to synchronize the two lanes. This feature is not needed for a film without imprints. However, if the film comprises imprints, the length difference between two eye marks, which border one imprint, is different on one film compared to the other film.
  • synchronizing means are needed.
  • the synchronization can be carried out, for example, with a servo- controlled loop in one of the lanes, by altering the length of the loop.
  • the length difference between the eye marks of the two films is detected by detection means, for example by one or more photo cells, and the loop is then controlled such to align the eye marks in the two lanes so that both lanes can be cross-sealed with one cross seal jaw. It is possible to have one tensioning means for both lanes or one for each lane.
  • the packaging machine comprises printing means to apply imprints on the film. More preferably, each lane comprises one printing means.
  • the cutting means are located between these printing means and the film roll.
  • the packaging machine comprises tensioning means to apply a certain tension on the film.
  • the cutting means are located between tensioning means and the printing means.
  • the cutting means are located between the tensioning means and the film roll.
  • All these preferred embodiments of the present invention have the advantage that the guiding rolls after the cutting means can be designed with less length and/or less diameter and thus less inertia which has the above-explained advantages.
  • the at least two lanes of film after being cut apart have to be guided by guiding means to the center of the respective filling tuBes, whereas each guiding means comprises at least two rollers instead of fixed shafts.
  • This embodiment of the present invention has the advantage that there is no or very little relative movement between the roller and the film and that there little difference in film tension along the length of the film. Additionally, compared to a stationary shaft, the friction forces are tremendously reduced, which has a positive effect on the film transport because less force is needed to pull the film, which increases the production rate that can be realized.
  • the guiding means can also be used for an inventive packaging machine that is operated with two or more film rolls.
  • each guiding means comprises a shaft and for example holes to eject gas, preferably air. Due to the gas ejection, there is a gas layer between the shaft and the film. Consequently, compared to a stationary shaft without air-ejection, the friction forces are tremendously reduced, which has a positive effect on the film transport because less force is needed to pull the film, which increases the production rate that can be realized.
  • the guiding means can also be used for an inventive packaging machine that is operated with two or more film rolls.
  • the cross-seal are applied for all lanes simultaneously, preferably with one cross-seal jaw.
  • the film is pulled exclusively by the cross sealing jaws, which grip the film and pull the film for- preferably downwards. While pulling the film downwards, the cross seal is applied.
  • This embodiment of the present invention has the advantage that no bells and vacuum are needed to transport the film. Due to the clamping of the film by the sealing jaws, no other means like vacuum, for example, are needed to create enough friction between the belts and the film.
  • the inventive machine is operated intermittently; i. e. operating modes in which the film is transported and in which the film is stationary, alternate. This means that alternating, the film has to be accelerated and decelerated. Preferably, this acceleration and deceleration is carried out smoothly, more preferably without any or very little momentum (da/dt) in order to avoid oscillations of the film.
  • the sealing jaws are operated by one or more servomotors. More preferably, the servomotors are controlled by a SPS. This preferred feature has the advantage that the film can be pulled smoothly.
  • the packaging machine comprises additionally film draw means to continuously or intermittently draw the respective film lane.
  • These film draw means can be used as sole film draw means or can support the film drawing of the sealing jaws.
  • the film draw means are preferably belts.
  • the inventive packaging machine comprises breaking means, which can be reversibly engaged with the film. This engagement is preferably carried out immediately after or while the cross-seal jaw let lose of the film. With the braking means, it can be prevented that the film is pulled backwards after the cross-seal jaw are no more in contact with the film.
  • each film lane is provided with braking means.
  • a person skilled in the art understands that if, for example, the friction at the forming shoulder is large enough, no brakes or only small brakes are needed.
  • the inventive packaging machine comprises breaking means that are in permanent contact with one film lane, respectively.
  • breaking means can rotate in one direction; i.e. in the direction in which the film is pulled They prevent the film from moving in the opposite direction, as long as the tension in the two film lanes is more or less equal.
  • the breaking means in the lane with the higher tension will allow the film to move backwards until the tension in both lanes is more or less equal again.
  • This preferred embodiment of the present invention has the advantage, that the tension in two film lanes is equalized automatically.
  • the inventive packaging machine comprises a lever device to automatically adjust the eye marks on the two lanes relative to each other.
  • a device could be, for example, a compensator which automatically puts more tension on the film lane that moves ahead, while simultaneously putting less tension on the film lane that moves behind. Due to this compensator, the position of the eye marks move closer together. As soon as their position is equal, the tension on both lanes should be equal as well. Additionally or even more importantly, the compensator will compensate the difference in film tension between the two lanes
  • Figure 1 shows a side view of the inventive packaging machine.
  • Figure 2 shows a prospective view of the inventive packaging machine.
  • Figure 3 shows the cross seal jaws.
  • Figure 4 shows the breaking means
  • FIG. 1 shows the inventive packaging machine 1 in a side view.
  • the packaging machine comprises a film roll 5, from which a film 2 is rolled off and transported within the inventive packaging machine as depicted by arrow 16.
  • the film passes tensioning means 6 in form of a compensating roller. With the compensating roller, the tension of the film can be adjusted. Afterwards, the film is cut into two separate lanes 2', 2" by a knife 10.
  • the distance 7 between the film roll 5 and the knife 10 should be as small as possible, so that the length and the diameter of as many guiding rolls 11 , 17 as possible can be designed relatively small, which reduces the inertia of the film transportation system and thus its tendency to oscillate and/or the sagging of the film.
  • each film lane 2', 2" passes guiding means 9, which guide the respective film lanes 2', 2" to the respective forming shoulder 3, 3'.
  • printers 8 are provided to apply imprints like, for example, bar codes, on the respective film lane 2 ' , 2".
  • one film, in the present example film 2' passes a lever device 12 that comprises two rolls whose distance can be altered in order to align manually or automatically the eye marks on the two lanes, before the two film lanes 2', 2" reach the forming shoulder 3, 3' on which they are formed into a tube.
  • a longitudinal and subsequently two cross seals for every bag are applied to the film.
  • the film is not transported continuously, but intermittently.
  • the film is transported by one cross sealing means (not depicted) which clamp the two film lanes and pull the film down. While it is pulled down, the cross seal is applied simultaneously on both lanes 2 ' , 2".
  • the cross seal jaws are removed from the film and transported upwards in order to clamp the film lanes 2 ' , 2 " again and pull them down. While the cross seal jaws are moved upwards, the film is stationary.
  • the vertical as well as the horizontal movement of the sealing jaws is carried out by a servo motor. Especially the acceleration and the deceleration of the cross seal jaws, after the film lanes have been clamped, should be carried out smoothly in order to avoid an abrupt acceleration of the film.
  • Figure 2 shows the inventive packaging machine according to figure 1 , but in a perspective view. It can be clearly seen that the guiding means 9 comprise two rollers 11. The entire guiding device can be rotated around one point of rotation 18 as depicted by the double arrow 13 in order to guide the respective film Iane2 ' , 2 " to the respective form shoulder 3, 3' which are not depicted.
  • the packaging machine comprises a photo cell 14, which is needed to adjust the movement of the cross seal jaws (not depicted) relative to the eye marks in order to achieve a constant bag length.
  • Figure 3 shows the cross seal jaws 33 of the inventive machine.
  • cross seal jaws With these cross seal jaws, the film is pulled downwards, and the cross seals are applied to the two film tubes which are formed by the forming shoulders 3, 3'.
  • the cross seal jaws can be moved up- and downwards as shown by arrow 33. This is accomplished by a rod 19 and a crank shaft 20 that rotates.
  • Figure 4 shows the breaking means 21.
  • These breaking means 21 essentially comprise a roller 34 that is bared such that it rotates only in one direction as shown by arrow 23, while the film is pulled downwards as depicted by arrow 20. On its circumference, the roller has a rubber ring 22 in order to promote the friction with the film tube 35', 35".
  • the roller 34 is bared in a basis 26 which is pivotally connected to a holder 23.
  • the holder 23 also comprises a spring 24 which pushes the roller 34 against the film tube 35' and 35" and simultaneously against the filling tube (not depicted). With the screw 25, the tension of the spring 24 and thus the force between the roller 34 and the filling tube can be adjusted.
  • the basis 28 is shiftably adjusted to the basement of the packaging machine, as depicted by arrow 29.
  • the person skilled in the art understands that the basis 26 can only rotate away from the filling tube until it is in contact with the holder 28, so that the breaking means 21 simultaneously function as a abutment during the application of the longitudinal seal.
  • the breaking means 21 will avoid a slipping backwards of the film lanes 2 ' , 2 " as depicted by arrow 31.
  • the breaking means allow the slipment, i. e. the movement in direction 31 of the lane with the higher tension until the tension in both lanes is essentially identical again.
  • an auto-correction of the film tension is realized. More or less identical film tensions in both lanes are essential in order to avoid that the film slips from the forming shoulder.

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

Abstract

L'invention concerne une machine d’emballage, particulièrement une machine d'emballage verticale, qui produit des sachets tubulaires à partir d'un film planaire (2) stocké sur un rouleau (5). Cette machine comprend au moins deux épaulements de formage (3, 3´), au moins deux tubes de remplissage (4) ainsi que des moyens de coupe (10) qui servent à découper le film planaire en un certain nombre de bandes (2, 2´´) de film correspondant au nombre d'épaulements de formage.
PCT/EP2005/013785 2004-12-22 2005-12-21 Dispositif d'emballage tubulaire equipe de deux moyens de formage et de remplissage WO2006066895A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04030446 2004-12-22
EP04030446.1 2004-12-22

Publications (2)

Publication Number Publication Date
WO2006066895A1 true WO2006066895A1 (fr) 2006-06-29
WO2006066895A8 WO2006066895A8 (fr) 2006-08-17

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Application Number Title Priority Date Filing Date
PCT/EP2005/013785 WO2006066895A1 (fr) 2004-12-22 2005-12-21 Dispositif d'emballage tubulaire equipe de deux moyens de formage et de remplissage

Country Status (1)

Country Link
WO (1) WO2006066895A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012152529A1 (fr) * 2011-05-06 2012-11-15 Robert Bosch Gmbh Machine à fabriquer des sachets tubulaires et procédé pour faire fonctionner une telle machine
CN104925287A (zh) * 2015-06-18 2015-09-23 浙江海洋学院 一种盘装食物封装机
JP2020070107A (ja) * 2018-11-02 2020-05-07 株式会社川島製作所 紙継ぎ構造を備えた製袋充填包装機

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB440328A (en) * 1933-11-28 1935-12-23 Heide Inc Henry Automatic packaging machine
US3082586A (en) * 1960-04-04 1963-03-26 Packaging Frontiers Inc Packaging machine
US3425185A (en) * 1965-12-11 1969-02-04 Colodense Ltd Production of sealed filled envelopes
GB1189906A (en) * 1967-10-09 1970-04-29 Hayssen Mfg Company Improvements in or relating to Packaging Machines
DE1586277A1 (de) * 1967-07-26 1970-12-03 Sengewald Dr Karl H Verfahren und Vorrichtung zum Abfuellen von Fluessigkeiten,insbesondere sterilisierter Milch in Schlaeuche aus thermoplastischem Kunststoff
US4262474A (en) * 1978-10-30 1981-04-21 Sigma Systems, Inc. Web feeding system for package forming machine
US5369941A (en) * 1991-03-11 1994-12-06 Ica S.P.A. Vertical packaging machine with two opposite forming tubes
US5822949A (en) * 1996-04-03 1998-10-20 Sanko Machinery Co., Ltd. Performance controller for multiple automatic packing machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB440328A (en) * 1933-11-28 1935-12-23 Heide Inc Henry Automatic packaging machine
US3082586A (en) * 1960-04-04 1963-03-26 Packaging Frontiers Inc Packaging machine
US3425185A (en) * 1965-12-11 1969-02-04 Colodense Ltd Production of sealed filled envelopes
DE1586277A1 (de) * 1967-07-26 1970-12-03 Sengewald Dr Karl H Verfahren und Vorrichtung zum Abfuellen von Fluessigkeiten,insbesondere sterilisierter Milch in Schlaeuche aus thermoplastischem Kunststoff
GB1189906A (en) * 1967-10-09 1970-04-29 Hayssen Mfg Company Improvements in or relating to Packaging Machines
US4262474A (en) * 1978-10-30 1981-04-21 Sigma Systems, Inc. Web feeding system for package forming machine
US5369941A (en) * 1991-03-11 1994-12-06 Ica S.P.A. Vertical packaging machine with two opposite forming tubes
US5822949A (en) * 1996-04-03 1998-10-20 Sanko Machinery Co., Ltd. Performance controller for multiple automatic packing machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012152529A1 (fr) * 2011-05-06 2012-11-15 Robert Bosch Gmbh Machine à fabriquer des sachets tubulaires et procédé pour faire fonctionner une telle machine
CN103502098A (zh) * 2011-05-06 2014-01-08 罗伯特·博世有限公司 软管袋机和用于运行软管袋机的方法
CN104925287A (zh) * 2015-06-18 2015-09-23 浙江海洋学院 一种盘装食物封装机
JP2020070107A (ja) * 2018-11-02 2020-05-07 株式会社川島製作所 紙継ぎ構造を備えた製袋充填包装機

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