EP0255474B1 - Vorrichtung zur Bildung von Schlauchbeutelpackungen - Google Patents

Vorrichtung zur Bildung von Schlauchbeutelpackungen Download PDF

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Publication number
EP0255474B1
EP0255474B1 EP87810318A EP87810318A EP0255474B1 EP 0255474 B1 EP0255474 B1 EP 0255474B1 EP 87810318 A EP87810318 A EP 87810318A EP 87810318 A EP87810318 A EP 87810318A EP 0255474 B1 EP0255474 B1 EP 0255474B1
Authority
EP
European Patent Office
Prior art keywords
tube
welding
longitudinal
transverse
speed
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
EP87810318A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0255474A2 (de
EP0255474A3 (en
Inventor
Wolfgang Klinkel
Dieter Vits
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.)
Ilapak Research and Development SA
Original Assignee
Ilapak Research and Development SA
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 Ilapak Research and Development SA filed Critical Ilapak Research and Development SA
Priority to AT87810318T priority Critical patent/ATE78448T1/de
Publication of EP0255474A2 publication Critical patent/EP0255474A2/de
Publication of EP0255474A3 publication Critical patent/EP0255474A3/de
Application granted granted Critical
Publication of EP0255474B1 publication Critical patent/EP0255474B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/02—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
    • B65B57/04—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages and operating to control, or to stop, the feed of such material, containers, or packages
    • 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
    • B65B9/2014—Tube advancing means
    • B65B9/2028—Rollers or belts
    • 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
    • B65B9/207—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 advancing continuously

Definitions

  • the invention relates to a device for forming tubular bag packs, with a supply roll, from which a flexible film web can be continuously pulled off by drive elements, a shaping device is provided with which the film web can be shaped, the products to be packaged via the interior of the filling tube can be fed to the inside of the hose, with longitudinal closure elements for producing a longitudinal seam on the hose jacket during the continuous hose movement, with transverse closure elements for producing transverse closures on the hose during its continuous feed movement and with a scanning and control device scanning the film feed for adapting the movement of the transverse closure elements with hose speed changes
  • EP-A 0083912 shows a packaging device in which two projecting tabs of the packaging are welded between pairs of rollers.
  • the cross seams are created by two synchronously rotating welding tools, between which the hose is passed.
  • This type of packaging is relatively slow because a minimum time for heating with simultaneous contact pressure is required for a good weld connection of the cross-weld seams, which is only guaranteed with a slow rotation due to the constantly rotating tools.
  • such packaging is primarily suitable for solid packaging objects and not for bulk goods.
  • the film expenditure with two mutually parallel connecting tabs is greater than with an overlap seam.
  • US-A 4128985 shows an electronic control device for an intermittently operating packaging machine.
  • Such an intermittent mode of operation means that the jerky film transport onto the film web causes undesirable tensions.
  • vibrations occur and the production output is limited.
  • the object of the invention is to solve the problem of avoiding accumulation of inaccuracies in the feed of the tube in high-performance tubular bag machines with a continuous tube feed and longitudinal and transverse welding tools that run along during the feed in order to ensure that the packaged bags match the printing distances in the case of printed films.
  • the longitudinal closure members is a motor-driven welding jaw that runs at the hose speed during the welding or sealing process, and the cross-closure members as cross-welding jaws that run at the hose speed during the welding or sealing process are formed
  • the control device contains a sensor which determines the length increments per unit of time between two printing marks on the film, the measured length increments per unit of time corresponding to a number of generated pulses which are fed to the drive elements of the web and the longitudinal and transverse welding beacons, and there is a correction device with a comparison circuit which determines deviations of the length increments from a desired value and brings about a correction of the tube longitudinal feed elements in the form of suppression of pulses or an increase in the number of pulses.
  • the tubular bag machine according to FIGS. 1 and 2 is used to produce tubular bag packs which are filled with, for example, a powdery, granular or chip-like product.
  • the packaging material consists of a flat, flexible plastic film web.
  • This film web 2 is drawn off from a supply roll 3.
  • the supply roll 3 is interchangeably seated in a machine frame 4.
  • a changeable film loop is formed by a pivotably mounted dancer roll 5, which is known per se.
  • the film web 2 then passes over a plurality of deflection rollers 6 between a pair of drive rollers 7, of which one drive roller is driven by chains 8 or toothed belts by a servo or stepper motor 10.
  • This drive roller pair 7, which is constantly driven during operation, thus pulls the film web 2 off the supply roll 3.
  • the film web 3 is then pulled over a shape shoulder 12 of a type known per se and then surrounds a preferably cylindrical, vertical filling tube 13 on the outside thereof.
  • This filling tube 13 is in flow connection at the top with a filling funnel 14, so that the products to be packaged can be filled into the interior of the filling tube 13 with a predetermined weight per batch from above in the direction of arrow B.
  • Other filling devices can also be used instead of the funnel.
  • the filler tube 13 is open in the longitudinal direction up to close to the upper edge of the shaped shoulder 12 on its rear side, as a result of which the filling material comes into contact with the continuously moving film at an early stage and the filling material is thereby pulled along with the film by friction.
  • a vertical longitudinal seam 16 is produced by a longitudinal welding device 15.
  • This longitudinal welding device 15 can be moved up and down as a whole in the vertical direction, since the welding process for producing a longitudinal welding seam takes place during the continuous advancement of the hose 20.
  • the elongated welding jaw 15 executes a movement as shown and explained in EP-A-0 232 220 (published on August 12, 1987).
  • EP-A-0 232 220 published on August 12, 1987.
  • the welding jaw 15 At the end of the downward stroke of the welding jaw 15 and after a longitudinal welding seam 16 was generated on the jacket of the hose 20, the welding jaw 15 is lifted off the hose 20 and returns to the starting position at an increased speed while maintaining a radial distance from the hose 20.
  • the length of the welding jaw 15 and her vertical path of movement is shorter than the vertical seam length which is required for a tubular bag pack 54, as a result of which a short overall height of the machine is possible.
  • the vertical welding seams produced by the welding jaw 15 overlap on the casing to form a continuous vertical longitudinal seam 16.
  • the movement of the welding jaw 15 is preferably generated by a mechanical multi-link coupling gear which is driven by the motor 10.
  • the longitudinal welding jaw 15 Since the longitudinal seam produced by the welding jaw 15 is shorter than the length of a tubular bag, the longitudinal welding jaw 15 must move in a faster rhythm than the transverse welding jaws 40, 43.
  • two driven take-off rollers 25 or belts are present on opposite sides of the filling tube 13, which abut the hose 20 on diametrically opposite sides.
  • the take-off rollers 25 are driven at a greater drive speed than the feed speed of the hose 20, so that the pull-off rollers 25 slip. This slip is made possible by a slip clutch inside each take-off roller 25. Since the take-off rollers 25 are driven at a greater circumferential speed than the hose feed corresponds to, slip occurs in the slip clutch, and the tensile force can be adjusted.
  • the take-off rollers 25 each sit on an arm 40 which can be pivoted about a horizontal axis and are pressed by spring pressure in the direction of the arrows E against the hose 20 lying around the filling tube 13. These take-off rollers 25 are driven via a shaft 48 and a gear 46 by the same servo motor 10, which drives the pair of drive rollers 7.
  • the organs for producing horizontal transverse seams 17, 21 on the hose 20 are located below the longitudinal welding device.
  • the two welding jaws 40, 43 for forming the transverse seams are designed such that a top seam 17 for the lower, already filled tubular bag 54 and a bottom seam are made at the same time 21 is generated for the overlying, yet to be filled, initially open bag.
  • a separating knife 72 for separating the finished closed lower tubular bag 54 In between there is - according to FIG. 4 - a separating knife 72 for separating the finished closed lower tubular bag 54. Since the hose 20 is fed continuously, the welding jaws 40, 43 and the organs interacting with them must also be continuous during the welding process move downward at the same hose feed speed.
  • a servo or stepper motor 62 which generates the horizontal opening and closing movement of the welding jaws 40, 43.
  • This motor 62 drives a cam disk 76 (FIG. 4) or a crank via a reduction gear 62a.
  • the two welding jaws 40, 43 are moved in opposite directions by a pair of joints.
  • the crank or cam disk 76 which is seated on a shaft 78 driven by the motor 62, bears against a cam roller 82 which is connected to a drive rod 80, at the end of which the welding jaw 43 is located.
  • the crank or cam disk 76 is rotated, the welding jaw 43 thus moves in the direction of the double arrow K.
  • the other welding jaw 40 executes an equally large movement synchronously in the opposite direction.
  • the middle of the welding jaw 40 is provided with a separating knife 72, which is actuated hydraulically or pneumatically when the filled or fully sealed bag 54 is to be separated.
  • the upper part of the two welding jaws 40, 43 heated electrically to the welding or sealing temperature is used to produce a bottom seam 21 of an upper tubular bag which runs transversely to the longitudinal direction of the tube.
  • the part of each of the two welding jaws 40, 43 located below with a small intermediate space serves to simultaneously form the head seam 17 and to close the tubular bag located underneath.
  • the entire assembly 56 together with the motor 62 is moved downwards in the direction of the arrow R exactly at the hose feed speed.
  • the welding jaws 40, 43 are closed in their upper end position of the assembly 56 shown in FIG. 1. During the welding process, the closed welding jaws 40, 43 thus move at the feed rate the hose 20 down.
  • the non-liquid products to be packaged are fed through the filling funnel 14 via the filling tube 13 in a measured quantity to the inside of the tube 20.
  • the separating knife 72 is actuated, whereupon the lower, fully packaged tubular bag 54 or the like in the direction of the arrow R into a storage container. falls.
  • the separation knife 72 can be actuated depending on the time after the closing of the welding jaws 40, 43 or depending on the vertical position of the assembly 56.
  • the welding jaws 40, 43 then open as a result of a corresponding rotary movement of the crank or cam disk 76.
  • the assembly 56 is then moved upward again to the starting position at an increased speed by reversing the direction of rotation of the drive motor 58.
  • this process can also be carried out by hydraulic or pneumatic cylinder-piston units which are controlled by electromagnetic valves or by a toggle lever.
  • a reciprocating vibrator 51 knocking against the hose 20 is provided.
  • the length of the vertical movement which the transverse seam jaws 40, 43 carry out is shorter than a bag length, since the transverse seam jaws 40, 43 have to be moved back to the starting position by one bag length after the welding process during the continuous feed.
  • the film web 2 wound on the supply roll 3 is driven by the drive roller pair 7 continuously withdrawn from the supply roll 3.
  • the associated drive motor is a servo motor 10 or stepper motor which is controlled by the control device 84 and receives pulses 88 via a movement control element 86 and a driver 88 provided with a current source 87.
  • the sensor 19 located between the pair of drive rollers 7 and the shaped shoulders 12, which is preferably designed as a photocell, responds to differences in brightness of print marks on the film web 2.
  • the length of the film web assigned to each tubular bag 20 thus corresponds to the distance between two printing marks.
  • a digital rotary encoder could also be connected to the take-off rollers 7, which outputs pulses in accordance with the rotary movement or the film web feed. However, it would also be possible for the pulses to be output in a time-dependent manner. When changing the packaging length, the adjustment can be digitally adapted to the changed spacing of the print marks.
  • the measured length increments per unit of time correspond to a number of pulses that are supplied to the servo motor 10 or stepper motor. These impulses cause corresponding rotary steps in the drive motor 10. This number of pulses is compared in a correction device provided with a low-voltage current source 92 with a comparison circuit 90 of the control device 84 with the pulses output between two print marks in the same time period.
  • This control device ensures that both the vertical movement of the welding jaws 40, 43 takes place exactly in accordance with the hose feed, and the opening and closing movements of the welding jaws 40, 43 during the welding process takes place exactly in accordance with the pitch of the printing marks, so that no inaccuracies in the hose feed can add.
  • the motors 58 and 62 are also each assigned motion controls 86 and drivers 88.
  • a separate power supply 94 and an analog-to-digital converter 96 are assigned to the longitudinal and transverse welding jaws 40, 43.
  • the control device 84 is preferably in the form of a microcomputer which is programmable in accordance with the requirements.
  • the various information and values can be entered and displayed in the command and display device 65 for the remote control.
  • the desired values can be called up and changes made by pressing pushbuttons.
  • sealing seams in the longitudinal and transverse directions can also be produced, depending on the material used for the film web.
  • the welding jaws or welding seams would be understood as sealing jaws or sealing seams.
  • Tubular bags of any length can be produced by the fact that the actuation of the motor 62 is not carried out automatically but by means of a manual switch.
  • Print marks should also be understood to mean perforations made in the film web.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP87810318A 1986-07-31 1987-06-02 Vorrichtung zur Bildung von Schlauchbeutelpackungen Expired - Lifetime EP0255474B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87810318T ATE78448T1 (de) 1986-07-31 1987-06-02 Vorrichtung zur bildung von schlauchbeutelpackungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3079/86A CH671198A5 (US20100012521A1-20100121-C00001.png) 1986-07-31 1986-07-31
CH3079/86 1986-07-31

Publications (3)

Publication Number Publication Date
EP0255474A2 EP0255474A2 (de) 1988-02-03
EP0255474A3 EP0255474A3 (en) 1989-02-01
EP0255474B1 true EP0255474B1 (de) 1992-07-22

Family

ID=4248162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810318A Expired - Lifetime EP0255474B1 (de) 1986-07-31 1987-06-02 Vorrichtung zur Bildung von Schlauchbeutelpackungen

Country Status (6)

Country Link
EP (1) EP0255474B1 (US20100012521A1-20100121-C00001.png)
JP (1) JPS6344402A (US20100012521A1-20100121-C00001.png)
AT (1) ATE78448T1 (US20100012521A1-20100121-C00001.png)
AU (1) AU595332B2 (US20100012521A1-20100121-C00001.png)
CH (1) CH671198A5 (US20100012521A1-20100121-C00001.png)
DE (1) DE3780530D1 (US20100012521A1-20100121-C00001.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315068A1 (de) * 1993-05-06 1994-11-10 Mesoma Hans Guenter Kauck Gmbh Vorrichtung zur Bildung von Schlauchbeutelpackungen
US10882652B2 (en) * 2016-05-19 2021-01-05 Rovema Gmbh Method for producing packaging by means of a packing machine
US11447281B2 (en) * 2020-02-14 2022-09-20 Lako Tool & Manufacturing, Inc. Modular stand-alone ultrasonic sealing system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63232106A (ja) * 1987-03-20 1988-09-28 株式会社イシダ 包装方法及び装置
JPH0614162Y2 (ja) * 1987-06-19 1994-04-13 三菱レイヨン株式会社 光フアイバ粗面加工装置
JPH01124509A (ja) * 1987-11-05 1989-05-17 Kawashima Seisakusho:Kk 縦型製袋充填包装方法
JPH0651498B2 (ja) * 1989-09-06 1994-07-06 株式会社三和自動機製作所 包装装置のフイルム送り装置構造
JPH03129206U (US20100012521A1-20100121-C00001.png) * 1990-04-11 1991-12-25
GB9314098D0 (en) * 1993-07-08 1993-08-18 Unilever Plc Apparatus and methods for producing packets
DE4425207B4 (de) * 1994-07-16 2006-06-08 Rovema - Verpackungsmaschinen Gmbh Schlauchbeutelmaschine
EP0764580B1 (de) * 1995-09-23 2000-02-09 Rovema Verpackungsmaschinen GmbH Schlauchbeutelmaschine
JP3585638B2 (ja) * 1996-04-03 2004-11-04 三光機械株式会社 多連式自動包装機
DE19714245A1 (de) * 1997-04-07 1998-10-08 Focke & Co Verfahren und Vorrichtung zum Herstellen (Füllen) von Beutelpackungen für Tabak
TNSN00090A1 (fr) * 1999-04-26 2002-05-30 Int Paper Co Une machine de conditionnement
ITBO20010430A1 (it) * 2001-07-09 2003-01-09 Ica Spa Confezionatrice a tubo formatore verticale
DE102007025786A1 (de) 2007-06-01 2008-12-04 Rovema - Verpackungsmaschinen Gmbh Schlauchbeutelmaschine zum Erzeugen einer Kombination aus mindestens zwei zusammenhängenden Schlauchbeuteln
JP5297089B2 (ja) * 2008-05-23 2013-09-25 株式会社イシダ 包装機
JP2012126447A (ja) * 2010-12-17 2012-07-05 Kawashima Packaging Mach Ltd 縦型製袋充填包装機の紙送り装置
DE102011075431A1 (de) * 2011-05-06 2012-11-08 Robert Bosch Gmbh Verfahren zum Optimieren der Förderung einer Packstoffbahn im Bereich einer Schlauchformeinrichtung einer Schlauchbeutelmaschine
JP2013245012A (ja) * 2012-05-29 2013-12-09 Tokyo Automatic Machinery Works Ltd 縦形製袋充填包装機
JP6280702B2 (ja) * 2013-07-04 2018-02-14 株式会社サンエー化研 流体封入装置
DE102015200780A1 (de) * 2015-01-20 2016-07-21 Robert Bosch Gmbh Vorrichtung zum Versiegeln einer Verpackung oder eines Verpackungsmaterials
DE102015223721A1 (de) * 2015-11-30 2017-06-01 Robert Bosch Gmbh Vorrichtung zum Bilden von zumindest einer Bahn von 3-Rand-Siegelbeuteln
DE102022111776A1 (de) 2022-05-11 2023-04-13 Syntegon Technology Gmbh Verpackungsbearbeitungsvorrichtung für eine Verpackungsmaschine, Verpackungsmaschine mit einer Verpackungsbearbeitungsvorrichtung sowie Verfahren zu einem Bearbeiten einer Verpackung oder eines Verpackungsmaterials

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JPS58171312A (ja) * 1982-03-24 1983-10-08 旭化成株式会社 自動充填包装機
DE3411368A1 (de) * 1984-03-28 1985-10-10 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum herstellen schlauchfoermiger verpackungen
JPS61115821A (ja) * 1984-11-12 1986-06-03 株式会社トパック 自動包装機における包装フイルム供給装置
DE3545228A1 (de) * 1985-12-20 1987-07-02 Rovema Gmbh Verpackungsmaschine zum herstellen, fuellen und verschliessen von beuteln

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315068A1 (de) * 1993-05-06 1994-11-10 Mesoma Hans Guenter Kauck Gmbh Vorrichtung zur Bildung von Schlauchbeutelpackungen
US10882652B2 (en) * 2016-05-19 2021-01-05 Rovema Gmbh Method for producing packaging by means of a packing machine
US11447281B2 (en) * 2020-02-14 2022-09-20 Lako Tool & Manufacturing, Inc. Modular stand-alone ultrasonic sealing system

Also Published As

Publication number Publication date
AU7419387A (en) 1988-02-04
JPS6344402A (ja) 1988-02-25
EP0255474A2 (de) 1988-02-03
CH671198A5 (US20100012521A1-20100121-C00001.png) 1989-08-15
EP0255474A3 (en) 1989-02-01
DE3780530D1 (de) 1992-08-27
AU595332B2 (en) 1990-03-29
ATE78448T1 (de) 1992-08-15

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