EP1704992A1 - Dispositif de fabrication de coussins d'air pour l'emballage - Google Patents

Dispositif de fabrication de coussins d'air pour l'emballage Download PDF

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Publication number
EP1704992A1
EP1704992A1 EP05405257A EP05405257A EP1704992A1 EP 1704992 A1 EP1704992 A1 EP 1704992A1 EP 05405257 A EP05405257 A EP 05405257A EP 05405257 A EP05405257 A EP 05405257A EP 1704992 A1 EP1704992 A1 EP 1704992A1
Authority
EP
European Patent Office
Prior art keywords
film material
plastic film
air cushion
cam
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.)
Withdrawn
Application number
EP05405257A
Other languages
German (de)
English (en)
Inventor
Loibl Bernd
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.)
Lupoki Development GmbH
Lupoki Dev GmbH
Original Assignee
Lupoki Development GmbH
Lupoki Dev GmbH
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 Lupoki Development GmbH, Lupoki Dev GmbH filed Critical Lupoki Development GmbH
Priority to EP05405257A priority Critical patent/EP1704992A1/fr
Publication of EP1704992A1 publication Critical patent/EP1704992A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0073—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including pillow forming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0017—Providing stock material in a particular form
    • B31D2205/0023—Providing stock material in a particular form as web from a roll

Definitions

  • the invention relates to a device for producing packaging air cushion elements with at least one supply roll with laminatable plastic film material which can be fed to the device in at least one web, with a cutting device for introducing at least one opening into the two-layer plastic film material in the device, with a blower, with the Air is inflatable through said opening in the plastic film material and with closure means for creating a closed air cushion of the plastic film material.
  • a cutting device for introducing at least one opening into the two-layer plastic film material in the device
  • a blower with the Air is inflatable through said opening in the plastic film material and with closure means for creating a closed air cushion of the plastic film material.
  • Such devices are common in the industry for safely packaging sensitive items. These devices use, for example, as in the EP 1 044 793 described, a rollable film tube, in which a perforating introduces a series of perforations, to then blow air into the film tube.
  • the FR 2,679,168 does not use a float to open the tube halves, but uses the power of the air flow itself to open the tube halves.
  • the US 5,216,868 shows a device for generating packaging air cushion elements with a camshaft, with the various stations are controllable. A cam controls a sealing element for a first step, in which air is blown in a certain hose length. A plurality of other workstations are drilled on the inflated tube in a second step to create a single air cushion pad over a weld.
  • the present invention seeks to provide the aforementioned industrial packaging methods in the small series and in the simplest possible way virtually any interested company.
  • the cutting blade has a convex shape or an arrow shape, a commercial cutting blade can be taken, which is also easily replaceable by the user, which greatly increases the ease of maintenance of the device.
  • Fig. 1 shows a perspective view of the embodiment of the invention.
  • the device for producing packaging air cushions is fed by a supply roll 1, from which a hose is guided via a multiplicity of guide rollers and film tensioners 2 into a processing region.
  • This processing area is closed by a hinged fan beam 3, which is designed on its underside 4 as a die for the various processing elements.
  • the fan beam 3 has in particular on its underside an arrow-shaped slot 5, the tip of which is aligned in the direction of movement of the film material 1.
  • the legs of the arrow of the slot 5 are very dull and go in the end regions 6 in perpendicular to the direction of movement of the film extending perforation slot areas over.
  • the processed film is released from the device via output rollers shown here only by the bearings 7, the change in shape of the flat film in the air cushion beyond the rollers 7 takes place in the direction of movement 19 of the film.
  • the rollers 2 and 7 can be connected to each other via a toothed belt 28, which can be achieved in particular that a single motor, not shown in the figures, can accomplish the foil propulsion.
  • the control of the explained in connection with FIGS. 3 to 6 processing elements is done by a cam 10, whose base is arranged parallel to the plane of the film 9 passing through it.
  • the fan beam 3 has a projection 29 which is connectable to a fan, not shown in the figure. Through the approach 29 air is blown through the fan beam 3 and the local cutting openings 5/6 and the fan opening 25 between the film layers as will be explained in more detail below. It is already noted here that under the disc 10, a second in the Fig. Not shown engine is used, so that the entire device with a total of two motors can be driven and controlled.
  • FIG. 2 shows the cam 10 with an exemplary embodiment of the controller.
  • the invention is based inter alia on the insight that in a cost-effective and simple device for the production of air cushions, it is more advantageous not to use electronic control, since here a number of high-power elements would have to be driven, resulting in correspondingly expensive solutions.
  • With the arranged parallel to the film plane cam it is possible to arrange on this guide ribs 11, etc., on the one hand control the mechanical work of cutting, on the other press the elements required for welding as a stamp against the matrix and finally as an on-off switch perceive and control the electrical functions. It should be noted, however, that advantageously for filling the Air cushion with air necessary blower while the machine is running constantly, so that the total power switch is also the power switch for the fan.
  • the guide ribs are in particular the following:
  • the reference numeral 11 denotes the highest guide ribs with which the cutting blade provided with the reference numeral 21 in FIGS. 3 to 6 is actuated.
  • This cutting blade 32 is yes from a low zero position, which is shown in Fig. 3, in the cutting position shown in FIG. 5 most uplifted, since it from a region below the film 9 coming from this completely cut through in a central region.
  • the two layers of the film are only perforated to produce a connected sequence of air cushion chambers, which can be torn off separately in a particular case.
  • all the processing elements of FIG. 3 are in the zero position. These are the mentioned here schematically illustrated cutting edge 21 between guides 22, a first welding bar 23 and a second welding bar 24. When switched, the welding bars are brought to operating temperature.
  • the still open film tube or simply hose 9 is driven in the direction of arrow 19 forward.
  • the hose 9 runs on a base 24 of the device, which is arranged opposite the fan beam 3, which has a serving as a die 4 bottom surface which includes the slot 5 in the middle.
  • the slot 5 belonging to the cutting blade 21 has, for example, a width of 2/3 of the film width and it is U- or V-shaped bent. It can also extend as a perforation knife into the edge regions of the film.
  • the tip of the U-shape or V-shape is oriented in the direction of film advance 19 and thus stands in the direction of the blown from the fan airflow. It is essential that the slot which can be produced by the cutting blade 21 is aligned in the filling direction of the air cushion, that is, in its central region, the opening away from the fan and pointing towards the air cushion.
  • the cutting device 21 thus has a convex shape or arrow shape, the tip of the mold being oriented away from the blower in the direction of the packaging air cushion to be filled.
  • the rearward welding bar 23 is raised in the direction of movement of the film 9 by a rod which extends into the cavity 43 and which is supported on the opposite rib 12 on the opposite side.
  • the double-lying film tube 9 is welded in the area between the welding bar 23 and the die 4 of the fan bar 3.
  • the temporal length of the welding can be several tenths of a second.
  • the template 4 is non-stick, for example Teflon coated.
  • the rib 13 actuates in FIG. 4 unrecognizable elements that protects the film 9 from slipping.
  • the beam 23 seems to pass through the film 9; this corresponds to the schematic representation; In fact, the element pushes the two film layers against the surface 4. Subsequently, the welded at one point film tube is moved forward, so that the weld seam according to FIG. 5, for example, is in the area 39.
  • the filling of the air cushion is carried out as follows: In the step before Fig. 3, the last generated air cushion is carried out of the device, which by the first motor connected to the rollers is accomplished. Then the film part located in the direction of the supply roll 1 is transversely welded (FIG. 4).
  • the perforation and the ventilation opening are introduced by the knife 21 into the film, so that from this point on the air volume introduced by the blower flows between the two layers of the film 9 and can inflate it in the direction of movement 19 outside the device.
  • a bag is generated because the previous weld by the welding bar 23 weld seam terminates the hose forward in the area 39.
  • the film material is advanced by one foil bag length through the first motor. It is possible to provide a corresponding adjustment, so that the user can decide for himself, which length should have the foil bag produced by him.
  • the cutting blade 21 runs on the second guide rib 11. This leads to a second taking of the cutting position with the difference that this position is a stop position in which the fan beam is hinged.
  • this position is a stop position in which the fan beam is hinged.
  • the knife can be replaced, since it protrudes through the surface 25 upwards. It should be noted that this removal position is not equal to the rest position noted by the reference numeral 20 in which the user can exchange the roller.
  • the ribs 11 to 16 each have an example drawn at a guide rib 11 rising edge 31, a Plateau Society 32 and a descending edge 33. It is clear that when cutting the effect already on the rising edge 31 begins when the knife 21 the Successively cuts through two-layer films. In the other steps, the rising flanks serve to move and generate a contact pressure, wherein the actual welding function is exerted, for example, in the plateau phase. In the case of the electrical switching action exerted by the rib, for example 14, the switching on is effected with the rising edge; the plateau phase corresponds to the switched-on time and the welding elements are switched off again during the descending flank.
  • the clock rate is in principle adjustable by the rotational speed of the disc 10 over the speed of the second motor driving this disc, although a fixed default is preferred for reasons of simplicity.
  • the device can be charged instead of tubular film with two individual, superimposed in the device individual films when at the edges in the direction of movement 19 each left and right in the drive steadily operating heating elements are provided; these can be provided for example on the rollers 2 and thus produce a film tube from the two individual films.
  • a first step according to Fig. 4 welded.
  • the film 9 is advanced by the action of the first motor.
  • the film is cut while being held by the guides 22 as shown in Fig. 5.
  • immediately - without further feed - according to Fig. 6, set the other weld.
  • a device provided with the reference numeral 40 in FIG. 1 is arranged on the axis of the roller 1.
  • the film rolls 1 are preferably coded, for example via an induction-based chip or by a bar code mounted on the axis or the shape of the hub end of the roll etc.
  • the correspondingly designed reading device 40 can thus be used to transmit the type of roll, for example the film thickness. This information is then transmitted directly to the control of the second motor for driving the cam 10, which adjusts the rotational speed of the cam 10 and thus the duration of welding in dependence on the required welding times (heating times).
  • Fig. 7 shows a schematic side view of some of the functional elements of the device according to a further embodiment in the zero position
  • Fig. 8 is an associated plan view of this device.
  • the guide wheel 50 makes a full rotation of 360 degrees for each bag produced.
  • the ribs and functional elements work like follows together.
  • wheels 51 run on the flattened ribs and the movement of the functional elements is transmitted via the webs 52, which in each case connects a wheel 51 with a functional element 21, 22, 22 ', 23 or 24.
  • the functional elements can always put on two sides by two webs 52 with two wheels 51 on the guide wheel 50, so that all functional elements are guided on two sides.
  • FIGS. 7 and 8 With the welding bar 24, the bag is closed by passing the welding bar 24 over the associated ribs 12.
  • the reference numerals in Figs. 7 and 8 denote the same elements. The order of use may differ from the embodiment of the other Figs.
  • the film 9 is brought by the holders 22 and 22 'by the pair of ribs 15 and 14 in position and held so that they do not slip during subsequent cutting.
  • the cutting is done via the knife 21 and the ribs 11th
  • the welding beam 23 welded by the emergence of the ribs 13, the air-filled bag, since after cutting the continuous fan has brought air into the half-formed bag.
  • the knife 21 subsequently passes once again through the already slotted location of the film, before a new cycle begins.
EP05405257A 2005-03-22 2005-03-22 Dispositif de fabrication de coussins d'air pour l'emballage Withdrawn EP1704992A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05405257A EP1704992A1 (fr) 2005-03-22 2005-03-22 Dispositif de fabrication de coussins d'air pour l'emballage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05405257A EP1704992A1 (fr) 2005-03-22 2005-03-22 Dispositif de fabrication de coussins d'air pour l'emballage

Publications (1)

Publication Number Publication Date
EP1704992A1 true EP1704992A1 (fr) 2006-09-27

Family

ID=34942946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05405257A Withdrawn EP1704992A1 (fr) 2005-03-22 2005-03-22 Dispositif de fabrication de coussins d'air pour l'emballage

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EP (1) EP1704992A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216868A (en) * 1992-01-28 1993-06-08 Andrew K. Cooper Packaging product and machine for making same
EP0836926A2 (fr) * 1996-10-18 1998-04-22 C.P.S. B.V. Procédé et dispositif pour la production d'un coussin rempli de gaz

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216868A (en) * 1992-01-28 1993-06-08 Andrew K. Cooper Packaging product and machine for making same
EP0836926A2 (fr) * 1996-10-18 1998-04-22 C.P.S. B.V. Procédé et dispositif pour la production d'un coussin rempli de gaz

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