EP1167208A1 - Dispositif de fermeture pour les mâchoires de fermeture d' une machine d' emballage en sachets - Google Patents

Dispositif de fermeture pour les mâchoires de fermeture d' une machine d' emballage en sachets Download PDF

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Publication number
EP1167208A1
EP1167208A1 EP01810606A EP01810606A EP1167208A1 EP 1167208 A1 EP1167208 A1 EP 1167208A1 EP 01810606 A EP01810606 A EP 01810606A EP 01810606 A EP01810606 A EP 01810606A EP 1167208 A1 EP1167208 A1 EP 1167208A1
Authority
EP
European Patent Office
Prior art keywords
tools
closing device
guides
tool
closing
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.)
Withdrawn
Application number
EP01810606A
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German (de)
English (en)
Inventor
Wolfgang Klinkel
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.)
O-Mega Packaging AG
Original Assignee
O-Mega Packaging AG
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 O-Mega Packaging AG filed Critical O-Mega Packaging AG
Publication of EP1167208A1 publication Critical patent/EP1167208A1/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the present invention relates to a closing device for the closing tools a bag packaging machine as described in the preamble of claim 1.
  • the generic bag packaging machines as known from practice and are also strongly represented in the patent literature (e.g. from DE C 303 1399) usually from a housing in which the working elements are fixed.
  • the most important working organs are the film web feed with film roll and guide and conveyor rollers, the so-called format set with filling tube for filling the Product into a bag made from a flexible sheet of film, and a shaped shoulder, over which the film web is guided in order to form a tube form a longitudinal closure device to create the longitudinal seam of the bag and a cross closure device to create the cross seam, i.e. the bag too closure.
  • the locking tools especially the cross locking tools, now lead opposite movements up and down, the relatively large mass of hot tools back and forth up to a hundred and eighty times a minute, over relative large distances (in the order of 125 mm) must be moved. These movements must be very precise, since the quality of the bags produced is very different from the so-called Closing pressure of the interacting tools depends. A quiet run of the The machine must be guaranteed despite the relatively large moving masses.
  • the known machines of the prior art now solve the task of the demanding Movement of the closing tools of a bag packaging machine by means of lever systems, e.g. Toggle lever, or using pneumatic or hydraulic drive systems or with toothed belts.
  • lever systems e.g. Toggle lever
  • pneumatic or hydraulic drive systems or with toothed belts.
  • the purpose of the present invention is to overcome the described limits of the known technology for the closing device of the tools of a bag packaging machine, primarily by the fact that the mass of the reciprocating Elements of the tools should be reduced. Further, thanks to the inventive Solution, a higher precision of the movements of the tools as well as a more precise adjustment of the closing force can be achieved. In addition, and how will be explained in detail later, a continuous mode of operation of the machine be made possible. "Continuous mode" is an operation of the machine understood, in which the packaging film is never interrupted in its movement i.e. in which the film also during the closing operation through the longitudinal seam closing device and constantly advanced through the cross seam closing device becomes.
  • FIG. 1 and 2 show the basic structure of a bag packaging machine, from the front and seen from the side, and in a simplified, purely schematic representation.
  • the figures contain only those for the explanation of the invention necessary parts.
  • Other parts of the machine e.g. the film feed, the scale, the Format set, etc.
  • the bag packaging machines to which the present invention is applied are well known to the expert from practice and from the patent literature, so their full description seems unnecessary here.
  • DE 3031 399 A1 which a method and an apparatus for Forms, fills and seals of packs concerns.
  • Fig. 1 is the control cabinet 8 for controlling the motors of the machine shown.
  • the entire film feed and the scales are not shown. The the former would be on the left side of FIG. 2, while the second would be above the yoke, possibly even placed on column 2. All of this is conventional and well known.
  • the present invention relates only to the closing devices of the closing tools the machine and, more precisely, the way the closing tools be guided and driven.
  • a bag packaging machine of the generic type mentioned here usually two locking devices has, namely a longitudinal closing device 5 and one Cross closure device 6. Both closure devices are basically same in construction, even if the position of the closing tools goes without saying, is different according to the task. So there is the longitudinal locking device 5 from a heated tool 9 standing in a vertical position (FIG. 2) and from a fill pipe counter holder 10. Between the two tools 9 and 10 is the fill tube (not shown) through which to be packed Material is filled into the bag.
  • the transverse locking device 6 differs from that just described Longitudinal closing device 5 only by the type and position of the two forming them Tools, which in this case are both heated, horizontal Tools 11 and 12 are formed.
  • the other elements of the cross closure device 6 correspond exactly to those of the longitudinal closing device, both as far as the guides and the drive elements are concerned. Even the fact that the Movements of the elements (tools 9 and 10 or 11 and 12) can be of different lengths (usually the tools of the cross-locking device guide 6 longer than those of the longitudinal closing device 5 Paths through), plays no essential role in the context of this invention and can be as Difference between the two closing devices can be neglected. For this reason, the invention in its various variants is now only based on the cross-closure device 6 described in more detail: what for the cross-closure device 6, also applies unchanged to the longitudinal closing device 5th
  • FIG. 3 is now to be used as an aid, in which the elements of an inventive cross-locking device in plan to be shown.
  • 3 is a top view of FIG. 1, however the longitudinal closing device 5 and the yoke 3 have been omitted.
  • 3 13 denotes a carrier (a carrier plate), which vertically in the Guides 4 is guided.
  • the guide tubes 14 to 17 are Pipes in which the corresponding guides 18 and 19, or 20 and 21, be performed.
  • the guide tubes 14 to 17 are relatively long and therefore guarantee precise guidance of the guides 18 to 21 and thus the tools 11 and 12.
  • the guides 18 to 21 are, at least over a certain part of their length, designed as racks, i.e. they have teeth (not visible in FIG. 3).
  • FIG. 1 which is a preferred variant of the invention can be seen, the racks of the guides 18, 20 with a first pinion 22 engaged, while the racks of the guides 19,21 with a second pinion 23 are engaged.
  • the pinions 22 and 23 each rotate around its vertical axis.
  • Each pinion 22, 23 has its own motor 24 and 25 driven, which is placed in the vertical position under the carrier 13.
  • the Motor 24, 25 is shown schematically in Fig. 3 by a square, one
  • the motors 24 and 25 are now operated strictly synchronously, but in reverse Direction, they will be guides 18 and 19, or 20 and 21, in move in the same direction over the pinion 22 and 23.
  • the tools 11 and 12, depending on the direction of rotation of the motors 24 and 25, are each other or apart moved, i.e. become a closing movement or an opening movement carry out.
  • these movements can be controlled more precisely, the less playful the guides 18 and 21 work and the more precisely the motors 24 and 25 are controllable.
  • the motors 24 and 25 and their Control made high demands, as will become clear later.
  • the good synchronization of the motors 24 and 25 plays a role major role. It should also be noted that, in the solution of FIG.
  • the two tools 11 and 12 always only one movement in the opposite direction can perform. They are rigidly coupled kinematically via pinions 22 and 23. This is a limit, which can be disadvantageous in certain cases, which is why in FIG. 4 a variant of the invention is shown, in which the tools 11 and 12 (in the figures the same numbers are always used for the same elements) can also perform a simultaneous movement in the same direction. Without in the details on the advantages of such movements of the tools in the same Wanting to take direction that are not the subject of this invention is only notes that this possibility e.g. in the manufacture of so-called Stand-up pouches can be an advantage, i.e. of such bags that have a flat Have soil.
  • each guide 18, 19, 20 and 21 has its own pinion 26, 27, 28, 29 driven.
  • four motors are required which must run strictly synchronously so that the closure of the bag seam can run smoothly.
  • digital Servo motors which are very precisely controllable, can be easily realized, above all, if you use fiber optic technology for their cabling. So you can realizing the so-called real-time operation, a term that every specialist of Control is known today and which says that the movements of one Most motors can be controlled with extreme precision, making them practical an absolute synchronization of the movements can be achieved.
  • the motors 30, 31, 32 and 33 of the pinion of the solution in Fig. 4 are, according to a preferred one Variant of the invention, digital servo motors with optical fiber cabling.
  • Fig. 4 meets the highest requirements with regard to freedom of movement tools 11 and 12 since it allows them to move independently and also offers a high degree of setting options.
  • Any tool 11.12 can e.g. have their own movement profile, i.e. for a special one Curve can be accelerated or decelerated and also at its own speed move. This advantageous variant determines the price of the device.
  • the present invention can be applied in a further embodiment variant are for a locking device, which with a single motor is driven.
  • a locking device which with a single motor is driven.
  • Such an engine must be precisely controllable if you have good seams wants, but does not have to be synchronized, since it alone drives the device. It So it is a cheaper solution to the problem, which in many Cases can meet the requirements set by practice.
  • This solution is shown in Fig. 5, which shows a locking device, what in the basic structure Guides and pinions concerns, reminiscent of the solution of FIG. 3. They are here too same elements with the same numbers.
  • the difference between the solution of FIG. 3 and FIG. 5 lies in the fact that the pinions 22 and 23 of FIG. 5 are not - like the corresponding pinions 22 and 23 of FIG. 3 - are driven by their own motor.
  • the pinion 22 and 23 of FIG. 5 serve only the kinematic coupling of the corresponding Tours 18 with 20 and 19 with 21 or, in other words, for the transmission of the Movement of the guide 20 and the guide 18 and the guide 21 and the Guide 19.
  • a further (third) guide 34 is provided in the middle of the tool 12, which its guide tube 35 is guided and is also designed as a rack.
  • a pinion 36 turns from a motor 37 to a very precise reciprocating one Movement driven.
  • the main advantage of this solution is the presence of a single motor 37, which is therefore not with other motors of the Locking device must be synchronized.
  • the motor 37 must, however, be advantageous can also be precisely controlled (like the motors of the other solutions shown), if you e.g. Realize a selected motion profile in this solution too and / or want to ensure a predetermined closing force. That's why it is also conceivable in this case that a digital servo motor is used as motor 37 becomes.
  • Another advantage of the inventive solution is that the application of directly driven pinions for driving the tools 11 and 12 that Reaching very high closing forces between the tools 11, 12 allowed without having to apply large torques.
  • a pinion of approximately 30 mm in diameter like the calculations and the Show experience, programmable closing forces of more than 12000 N, while previously known closing forces in the cross locking area of approximately 5000 N. were.
  • FIG. 2 and 3 Another advantage of the invention, which is a direct consequence of the small mass of the locking tools is the possibility (shown schematically in FIG. 2 and 3), the whole device, both the longitudinal closing device 5 and the Cross-locking device 6 to move vertically along the guides 4.
  • a motor 38 is provided, which has two pinions 40 and 41 by means of a horizontal axis 39 drives.
  • the pinions engage in two vertical racks, which are in the guides of the carrier 13 are provided.
  • the entire cross-closure device 6 can thus - And accordingly the longitudinal closing device 5 - in time with the bag delivery move up and down. This allows the continuous operation of the Machine because the longitudinal seams of the bags are not formed at a standstill got to.
  • the longitudinal closing tool follows the progressive movement during seam formation.
  • the vertical movement of the transverse closure seam 6 can Advantages for the manufacture of the so-called stand-up pouches, their description however, would go beyond the scope of our description. According to the invention it is only important that, thanks to the strong reduction of the moving masses of the inventive Closing devices, such vertical movements of the devices in the cycle of the bag production are easily possible, which, however, has not so far was feasible since excessive forces would have had to be controlled. This opens the Bag manufacturers completely new ways and allows them to deploy the machine significantly increase.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP01810606A 2000-06-30 2001-06-22 Dispositif de fermeture pour les mâchoires de fermeture d' une machine d' emballage en sachets Withdrawn EP1167208A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH20001292 2000-06-30
CH12922000 2000-06-30

Publications (1)

Publication Number Publication Date
EP1167208A1 true EP1167208A1 (fr) 2002-01-02

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EP01810606A Withdrawn EP1167208A1 (fr) 2000-06-30 2001-06-22 Dispositif de fermeture pour les mâchoires de fermeture d' une machine d' emballage en sachets

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US (1) US20020017077A1 (fr)
EP (1) EP1167208A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1661809A2 (fr) * 2002-11-04 2006-05-31 Ica Spa Système pour former des emballages rectangulaires à coins rigides
WO2024056757A1 (fr) * 2022-09-14 2024-03-21 Gks Packaging B.V. Appareil d'emballage avec moyen de jonction configurable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE526126C2 (sv) * 2003-11-24 2005-07-12 Tetra Laval Holdings & Finance Anordning och förfarande för försegling av en förpackning

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031399A1 (de) 1979-08-27 1981-03-19 Hayssen Manufacturing Co., Sheboygan, Wis. Verfahren und vorrichtung zum formen, fuellen und verschliessen von packungen
EP0469819A1 (fr) * 1990-07-31 1992-02-05 ISHIDA CO., Ltd. Appareil de soudage pour une machine de formage, remplissage et scellage d'emballages
US5167107A (en) * 1991-11-25 1992-12-01 Pacmac, Inc. Pinch sealer drive mechanism
EP0764580A1 (fr) * 1995-09-23 1997-03-26 Rovema Verpackungsmaschinen GmbH Machine de fabrication de sachets tubulaires
US5904027A (en) * 1996-04-17 1999-05-18 Bonde; Tommy Flowpackaging machine with adjustable closing jaws

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660864A5 (de) * 1983-07-29 1987-05-29 Sig Schweiz Industrieges Verfahren und vorrichtung zum antrieb der siegelelemente einer verpackungsmaschine.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031399A1 (de) 1979-08-27 1981-03-19 Hayssen Manufacturing Co., Sheboygan, Wis. Verfahren und vorrichtung zum formen, fuellen und verschliessen von packungen
EP0469819A1 (fr) * 1990-07-31 1992-02-05 ISHIDA CO., Ltd. Appareil de soudage pour une machine de formage, remplissage et scellage d'emballages
US5167107A (en) * 1991-11-25 1992-12-01 Pacmac, Inc. Pinch sealer drive mechanism
EP0764580A1 (fr) * 1995-09-23 1997-03-26 Rovema Verpackungsmaschinen GmbH Machine de fabrication de sachets tubulaires
US5904027A (en) * 1996-04-17 1999-05-18 Bonde; Tommy Flowpackaging machine with adjustable closing jaws

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1661809A2 (fr) * 2002-11-04 2006-05-31 Ica Spa Système pour former des emballages rectangulaires à coins rigides
EP1661809A3 (fr) * 2002-11-04 2010-12-22 Ica Spa Système pour former des emballages rectangulaires à coins rigides
WO2024056757A1 (fr) * 2022-09-14 2024-03-21 Gks Packaging B.V. Appareil d'emballage avec moyen de jonction configurable
NL2033029B1 (en) * 2022-09-14 2024-03-25 Gks Packaging B V Packaging apparatus with configurable joining means

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