EP2572999A1 - Vertikalvorhang-Einschlagvorrichtung mit Multiformat-Zuführer - Google Patents

Vertikalvorhang-Einschlagvorrichtung mit Multiformat-Zuführer Download PDF

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Publication number
EP2572999A1
EP2572999A1 EP12184334A EP12184334A EP2572999A1 EP 2572999 A1 EP2572999 A1 EP 2572999A1 EP 12184334 A EP12184334 A EP 12184334A EP 12184334 A EP12184334 A EP 12184334A EP 2572999 A1 EP2572999 A1 EP 2572999A1
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EP
European Patent Office
Prior art keywords
film
transfer
temporary winding
load
transfer means
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.)
Granted
Application number
EP12184334A
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English (en)
French (fr)
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EP2572999B1 (de
Inventor
Franco Tacchini
Maurizio Orfano
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.)
Officina Meccanica Sestese SpA
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Officina Meccanica Sestese SpA
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Publication of EP2572999A1 publication Critical patent/EP2572999A1/de
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    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/001—Arrangements to enable adjustments related to the product to be packaged
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/003—Arrangements to enable adjustments related to the packaging material
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/02—Plurality of alternative input or output lines or plurality of alternative packaging units on the same packaging line for improving machine flexibility

Definitions

  • the present invention concerns an improved apparatus for the packaging of products piled on pallets - in the following referred to in short by the term "load" - by means of a plastic material film. More in detail, it relates to an apparatus which allows to wrap loads which arrive sequentially, along a transport line, towards a wrapping station where a curtain of plastic film is laid.
  • a conventional multiformat wrapping machine provides to arrange a plurality of curtains having different heights, in succession along the transport line.
  • the desired curtain is maintained in the proximity of the transport line and the others are raised, so as to bring them well above the load transit path.
  • This construction method is convenient and effective, also in terms of format change speed, but has a cost proportional to the number of different curtain heights which it is necessary to provide, which makes it extremely burdensome when more than two or three different heights are to be managed.
  • the wrapping machine described in these documents makes use of a pair of gripper carriages, moving crosswise to the transport line and apt to transfer to the centre of the line two opposite edges of equal-height films, edges taken out from respective reels belonging to storage stations arranged at the two sides of the transport line.
  • Each side station supports an equal plurality of reels of wrapping film, mounted in a revolving manner.
  • the revolving movement is synchronised with that of the moving carriages, so as to bring the (desired-height) reels in the drawing positions of the gripper carriages in a synchronised manner on the two sides.
  • This equipment has implied a market improvement with respect to the solutions of the previous prior art, because it has a cost which is not overly affected by the number of reels used and is hence economically preferable when there is a large number of different heights (for example 6 reels).
  • the object of the present invention is hence to propose a curtain and multiformat wrapping apparatus, still employing a plurality of storage reels and a temporary stock cylinder, which solves the problems encountered in the prior art.
  • a method for wrapping pallet-loaded loads with a film of plastic material comprising the steps of wrapping of a load upon running through a curtain of film coming from at least one storage reel arranged on a first side with respect to a transport line of the load, and temporary winding means which can move crosswise to said transport line, wherein at least transfer means are furthermore provided, apt to present one end edge of said film coming from said at least one storage reel to gripping means of said temporary winding means through support and presenting means, both said temporary winding means and said transfer means translating then crosswise to said transport line to lay said curtain of plastic film, said transfer means being first connected to a moving coupling bar provided with an independent drive control with respect to a movement control of said temporary winding means, and wherein said temporary winding means rotate in a first direction to accumulate initially a length of film equivalent to a perimeter portion of said load, detected and calculated in a preliminary packing phase, and then rotate
  • the movement control of said moving coupling bar depends on the movement of said temporary winding means along said direction crosswise to said transport line, the travel-end of which is reached when said gripping means face welding means at the end of said phase of delivery of the curtain of film.
  • a rotation control of said temporary winding means is preferably coordinated with a translation control of the same temporary winding means and of said moving coupling bar, so that the full unwinding of the film temporarily accumulated on said temporary winding means occurs when said temporary winding means and said transfer means are mutually brought back together.
  • said support and presenting means are floatingly mounted on said transfer means so as to move back, after having presented said end edge of the film to the gripping means, until exposing a pair of sliding elements in contact with said film.
  • a curtain wrapping apparatus employing plastic film
  • the apparatus comprising at least one gate framework defining a transport line of loads to be wrapped, at least one support carrying a series of reels of film for selecting a feeding reel based on the features of the load to be wrapped, as well as transfer means movable along a transfer path crosswise to said transport line and apt to draw an edge of film of a selected reel from said reels, so as to define a curtain of film to be applied around the load to be wrapped during the progress thereof, first welding and cutting means mounted on said transfer means being furthermore provided, wherein there is also provided temporary winding means, opposite to said support with respect to said transfer means, apt to temporarily accumulate a certain length of film coming from said transfer means, said temporary winding means being also movable along said transfer path, so as to move away and closer with respect to said transfer means and define a curtain of film having an extension at least equal to the running front of said load to be wrapped, and wherein said temporary winding means comprise a tubular wind
  • said support and presenting means are floatingly mounted on said transfer means so as to be able to move backwards and let a pair of sliding elements come in contact with said film.
  • said sliding elements are idle rollers having a substantially vertical axis, mounted on said transfer means.
  • said floating support and presenting elements are kept retracted through elastic means and progress into the presentation position when coming in contact with travel-end abutment means while overcoming the stress of said elastic means when said transfer means are brought into said home position.
  • the floating support and presenting elements are in the shape of a plurality of lamina-shaped forks apt to support flag-like a free end edge of film, said gripping means of the tubular winding/unwinding element being apt to be located between the prongs of said forks.
  • the tubular winding/unwinding element is driven in rotation so as to wind a length of film substantially equivalent to the plan half-perimeter of the load to be wrapped, said perimeter being detected upstream of said transfer path axis.
  • the tubular winding/unwinding element is driven in rotation in a coordinated manner with a translation control of said temporary winding means and of said transfer means, so that the substantial full unwinding of the film temporarily wound thereon occurs when said temporary winding means and said transfer means are close to each other in said work position and said gripping means (21) face said welding means.
  • the wrapping apparatus provides, in a known manner, a transport line 1 for the progression of loads C, which move in the direction indicated by arrow F.
  • This transport line 1 is schematised in fig. 1 by a pair of rails parallel to the longitudinal axis Y-Y of transport line 1 or, in fig. 5 , by a simple roller unit 1A with cylinder axes perpendicular to axis Y-Y.
  • Transport line 1 runs through a gate framework, consisting of a pair of posts, an inner one 2 and an outer one 3 and of two crossmembers, a lower one 4 and an upper one 5, some details of which will be described in the following.
  • the gate defines a pair of rails for shifting, arranged crosswise to the progressing direction F of the transport line and defining a crosswise transfer axis X-X, whereon two transfer carriages which will be illustrated in greater detail in the following are apt to move.
  • a single reel-carrying support 6 is furthermore provided to the side of line 1, namely beyond inner post 2 with respect to transport line 1.
  • plastic film reels are installed which make up storage reels of the apparatus.
  • the drawings show, as an example, a support of the revolving type, i.e. essentially consisting of a disc-shaped platform 6 1 , rotating about a central pin 6 2 and of a plurality of supporting rotary-shaft spindles 7, 7 1 , 7 2 , 7 3 whereon the individual reels are mounted; in the embodiment shown only four support spindles are provided, for greater clarity of the drawing, but it is obvious that this number can be chosen at will based on the type of envisaged use.
  • Each one of spindles 7-7 3 supports in a freely rotatable manner a shaft with a T-shaped terminal, whereon a respective reel 8, 8 1 , 8 2 , 8 3 of wrapping film P is keyed on.
  • the different reels mounted on support 6 typically have different heights (or other differentiated features, which are useful for wrapping the different loads C which pass on the transport line).
  • a drive assembly 9 which determines the braked unwinding or the controlled rewinding of the reel with which it cooperates.
  • drive assembly 9 is arranged so as to cooperate with the reel which is in turn selected each time to interact with the transfer carriages and to form the curtain of wrapping film P.
  • assembly 9 comprises a support frame 9 1 rotatably mounted on the horizontal plane on a vertical pin 9 2 under the action of a pneumatic cylinder 9 3 .
  • a pair of wheels 10 is furthermore mounted - of rubber or other material suited to cooperate with the reel surface - rotating on a respective vertical pin under the control of a respective motor 11.
  • Wheels 10 are preferably of a large size - for example a radius and a thickness of 80 mm - so as to have a large resting surface against the lateral surface of the respective reel; thereby, they guarantee the driving into rotation of the reel with which they come into contact, under the thrust of cylinder 9 3 , but without excessive specific pressure, so as to safeguard the film.
  • the film P coming out of each reel is guided along a path towards respective first carriages or transfer means (one for each reel) overall referred to as 12, 12 1 , 12 2 , 12 3 , respectively.
  • the film runs on respective rocking rolls 13, 13 1 , 13 2 , 13 3 , carried by an equal number of rocker arms 14, 14 1 , 14 2 , 14 3 , as schematically shown in fig.
  • the film P can undergo tension peaks or loosening phases, which must be seconded by the reel unwinding speed to prevent the film from ripping or becoming excessively loose (which would give rise to malfunctioning). Also in the film rewinding step, between one load and the next - as will be seen further on - it is necessary to rewind the reel in a controlled manner so that there are no overtension or undertension in the film.
  • the apparatus comprises a temporary winding/storage assembly, overall referred to as 19.
  • This temporary storage assembly 19 is in turn mounted moving along the crosswise guides of the gate frame, according to the same handling axis X-X of first transfer means 12.
  • assembly 19 is controlled in translation, through a corresponding driving system (which is illustrated in the following), on a path portion opposite to the one of transfer means 12.
  • the management of the film and the transfer thereof from the transfer means to the temporary winding assembly 19 occurs in an original and efficient manner.
  • Each one of the first transfer carriages 12-12 3 - one for each storage reel 8-8 3 - consists of a moving vertical bar 16 (better visible in figures 5 and 6 ), which defines a slot/path through which the terminal edge of the film P, which comes out of the respective reel, passes.
  • the film terminal edge comes out of bar 16 and is supported flag-like (on a vertical plane) by a plurality of lamina-shaped forks 17, distributed in a vertical direction so a to be able to support all the heights of film provided in the use; as an example, in fig. 5 five forks 17 are shown and in fig. 6 only four thereof are shown, for greater clarity of the drawing.
  • Forks 17 are hence destined to keep a free edge of film P perfectly laid in a vertical plane and in a mechanically defined position.
  • each first transfer carriage is mounted so as to be able to slide crosswise to transport line 1 (path X-X) on the sliding guides defined on the gate frame, in the way better illustrated further on.
  • transport line 1 path X-X
  • the crosswise movement of bar 16, along the axis X-X, is guaranteed by upper and lower guides 16' apt to engage with the respective rails of the gate frame, the structure of which is within the reach of a person skilled in the field and therefore will not be described in detail.
  • bar 16 In the rest step, i.e. when the respective reel is inoperative, bar 16 is kept securely fastened to a fixed home post 16a integral with the support 6 of the rotary storage unit, in the proximity of the respective reel.
  • attaching means are provided, for example two ratchet devices 16b which may be driven to open and close, which hold bar 16 adjacent and engaged with home post 16a.
  • first locking pad grippers 16c are provided ( fig. 3 ), integral with home post 16a, which maintain the film pressed against bar 16.
  • a number of locking grippers 16c, located in a vertical direction, are sufficient to keep the relative position of the film fixed with respect to lamina-shaped forks 17, until the bar is attached to home post 16a through ratchet devices 16b.
  • the locking grippers 16c are preferably actuated by springs, while the opening thereof is actuated by a pneumatic control, so that the retaining is guaranteed also when the supply of compressed air is missing.
  • a cutting and welding unit 16s is furthermore mounted on transfer rod 16 .
  • Unit 16s is mounted projecting on the leading edge (i.e. the edge at the film exit; the left edge in fig. 3 ) of bar 16.
  • transfer bar 16 On the leading edge of transfer bar 16 there are preferably provided also two vertical-axis cylinders 17a and 17b, mounted in close proximity to each other at both sides of lamina-shaped forks 17.
  • plastic film P On these cylinders plastic film P is meant to slide during the working step of welding and cutting - which will be illustrated further on - in which step they replace lamina-shaped fork 17 in the guiding and support of the film.
  • forks 17 are effective for supporting flag-like the film and present it to the temporary winding assembly 19 during the gripping step (as will be seen further on), but they would end up ruining the film when said film takes on oblique attitudes in the delivery step on the load as well as in the final step of welding and cutting.
  • lamina-shaped forks 17 are not mounted directly on transfer bar 16, but are mounted on a floating frame 17c, mounted translatable perpendicularly to the leading edge of bar 16 on the vertical plane.
  • frame 17c is guided in the movement thereof by guiding rods 17d and is retained in a back travel-end position by elastic means 17e.
  • frame 17c is pushed to recede with respect to transfer bar 16 by elastic means 17e, so as to cause lamina-shaped forks 17 to recede with respect to cylinders 17a and 17b (attitude illustrated in fig. 4 ).
  • the position of transfer bar 16 is such that guiding rods 17d abut on a travel-end abutment 17d' - integral with home post 16a.
  • the position of adjustable travel end abutment 17d' is such that guiding rods 17d - which frame 17c is integral with - abut against it before transfer bar 16 is fully receded ( fig.
  • the transfer bars 16 of the respective transfer carriages 12 are, for all non-working reels, kept in a home position, attached to home post 16a integral with rotary support 6, with the sole function of maintaining on the vertical plane and in the correct gripping position the film coming from the respective reels.
  • transfer bar 16 is arranged thoroughly aligned with the guides integral with the gate frame, so as to make it available for a transfer in direction T (i.e. along the axis X-X crosswise to the progressing direction of load F), for the function better described in the following.
  • a coupling bar 18 is slidably mounted on the transfer guides of the gate frame.
  • This coupling bar provides second attaching devices 18a, for example controlled-ratchet-gear attaching means fully similar to the ones 16b provided on home post 16a.
  • Coupling bar 18 is driven in translation, for example through kinematic chain mechanisms actuated by an electric motor, and has the task of drawing and displacing the transfer bar 16 of transfer carriage 12.
  • coupling bar 18 is moved closer (from left to right in fig. 5 ) to transfer bar 16 so as to couple therewith, using the attaching devices 18a and a support shelf 18a' which couple with engaging pins 18b provided on bar 16.
  • attaching devices 18a and a support shelf 18a' which couple with engaging pins 18b provided on bar 16.
  • coupling bar 18 can drive into displacement with itself transfer bar 16 along the crosswise guides. The displacement occurs until about the centreline of progressing line 1, as will be better explained further on.
  • the winding/temporary-storage assembly is provided, overall referred to as 19.
  • This temporary storage assembly 19 is in turn mounted moving along the crosswise guides of the gate frame, according to the same displacement axis X-X of transfer bar 16.
  • assembly 19 is driven in translation, for example through a system of chains actuated by a second electric motor, on a path portion opposite to the one of transfer bar 16 with respect to coupling bar 18.
  • Coupling bar 18 and temporary stock assembly 19 are driven into displacement independently to be able to perform the entire curtain laying process, load winding, wrapping welding and subsequent new start of the cycle.
  • bar 16 - which makes up the moving component of transfer means 12 - is not provided with independent displacement along the axis X-X, but passively follows the displacement of coupling bar 18.
  • This temporary storage assembly 19 comprises a vertical-rod frame 19a, similar to the transfer bar 16 of assembly 12.
  • Frame 19a supports (as better visible in figs. 3 and 4 ) column winding means 20 and a corresponding motorisation suitably driven and controlled.
  • the column winding means are in the shape of a tubular body or drum 20 whereon plastic film P is meant to be wound.
  • drum 20 On drum 20 a plurality of gripping means 21 is provided; said gripping means are preferably housed inside the perimeter of drum 20 and they are accessed to from the outside through a longitudinal window/slot practised in the surface of drum 20; for such purpose, drum 20 is preferably built with a profile having substantially a C-shaped section, the opening of which allows the access to gripping means 21.
  • Gripping means 21 are conceived for gripping the free edge of the film supported by lamina-shaped forks 17 and retaining it adjacent to tubular body 20.
  • the position of gripping means 21 along the height of drum 20 is such as to match the gap between the prongs of lamina-shaped forks 17, when temporary winding assembly 19 is adjacent to transfer assembly 16, as shown in fig. 6 : this aids perfect film gripping.
  • Gripping means 21, as mentioned, are preferably mounted inside tubular body 20 and are meant to grip the film edge presented and introduced into the longitudinal window of drum 20 by lamina-shaped fork 17. Once the film edge has been gripped, the rotation of tubular body 20 about the longitudinal axis thereof causes the winding of subsequent layers of plastic film in close proximity to the outer surface of tubular body 20.
  • tubular body 20 is rotatably mounted with the main axis in a vertical direction and is driven into rotation by motorisation means.
  • Said means are, for example, in the shape of a vertical-axis motor 22 which, through a gear 22 1 and a transmission chain 22 2 , drives the rotation of drum 20.
  • Transmission chain 22 2 preferably runs also on a small vertical-axis tensioning cylinder 22 3 which may be adjusted in position, the function of which is also better described in the following.
  • the rotation of the tubular body 20 of the temporary winding assembly is detected through a sensing device, typically an encoder, to obtain a signal proportional to the angular position of the drum of winder 20.
  • a sensing device typically an encoder
  • Such signal serves both to control motorisation means 22 during film winding on body 20 - so as to wind the desired amount of film - and to be able to determine the halting position of cylinder 20.
  • the gripping means in the film gripping step the gripping means must be substantially aligned with transport axis X-X, so as to grip the film edge supported by lamina-shaped forks 17 ( fig. 3 ).
  • a welding and cutting assembly This comprises, in a manner known per se, opposite welding blocks, 16s (the ones arranged integral with transfer bar 16) and 19s (the ones arranged on the temporary winding assembly, i.e. integral with support rod 19a), respectively.
  • Welding blocks 16s and 19s traditionally heated by Joule effect, run along the entire height of assemblies 12 and 19 and are apt to come in mutual contact, clamping between them the edges of the film to be welded, during the wrapping closing step, as better detailed in the following.
  • a cutting blade 16t is furthermore provided, on the upstream side (with respect of the unwinding direction of film P) of the welding blocks: said blade is meant to severe the wrapping, after having performed the welding, from the remaining part of film P which connects to the reel.
  • a load to be wrapped is made to progress along transport line 1 in direction F. Upstream of the wrapping station the main dimensions of load C are detected. In particular, the reading of the height is used to determine reel 8-8 3 to be selected and then used, which acts on the control of rotary support 6 in order to bring the chosen reel with the corresponding transfer assembly 12 onto transfer axis X-X. Moreover, the other load dimensions are detected, to determine the extension of the plan perimeter.
  • winding assembly 19 and the bar 16 of transfer assembly 12 are displaced towards the centreline of the transport line.
  • the film is unwound off the respective reel - starting to lay in the curtain - and lamina-shaped forks 17 recede with respect to bar 16 and hence to winding assembly 19.
  • the moving further away of transfer assembly 12 from home post 16a causes a recession of the frame guiding forks 17, so as to cause said forks to recede upstream of guiding cylinders 17a, 17b whereon the film P is made to slide.
  • tubular body 20 is driven into rotation and begins a winding step of film P: using the signal coming from the sensing device (encoder), the rotation is continued until a linear length of film substantially equal to the half-perimeter of load C is wound, less the half-width of the front side.
  • a length of film sufficient to cover one half (the left one in the drawings) of the perimeter of load C must be wound, less the film which is already laid "curtain-like" through the transport line.
  • load C arrives which, coming in contact with film P, determines its own wrapping by passing.
  • film P is loosened both from the left, specifically by winding drum 20 which is released in rotation (by controlled friction action), and from the right, specifically by main reel 8 (itself also controlled in rotation by cylinders 10).
  • the film hence gradually arranges itself in the position shown in fig. 2 , i.e. immediately resting on the front side of load C and increasingly resting on the lateral sides of load C.
  • the necessary length of film guided by transfer means 12 is provided directly by reel 8
  • the length guided by assembly 19 is supplied by winding assembly 20, which gives back the one previously accumulated to the predetermined extent.
  • the maintenance of the correct unwinding tension of the film off assembly 19, according to the exemplifying embodiment illustrated, is guaranteed by a small tensioning cylinder 22 3 which is suitably equipped with a friction device.
  • the maintenance of the correct winding tension of the film coming from the respective reel 8 is instead ensured, in this step, by rocking roll 13 which provides the correct control to motor 11 and hence to wheels 10.
  • the convergence continues until it brings the two assemblies 19 and 12 in proximity one of the other, in particular bringing in contact the respective welding blocks ( figs. 1 and 7 ).
  • the coupling location of the two assemblies - hence the position of the welding on the wrapping - does not necessarily fall in the centreline of transport line 1, but is defined by the encoder of motor 22: as a matter of fact, it is desired for the apparatus to be as illustrated in fig. 7 , i.e. with gripper means 21 facing towards the welding blocks (which attitude guarantees the least possible film waste). Therefore the movement of transfer assembly 12 is dependent on and driven by the movement of winding assembly 19, said movement depending in turn by the signal coming from the encoder or other rotation sensor of drum 20.
  • the length of film wound in assembly 19 substantially corresponds to the one necessary for covering the half-perimeter of the load, less the film which is already laid between winding assembly 19 and transfer assembly 12. If the length wound in assembly 19 was shorter or longer than the required one, there would derive that the welding and cutting area of the wrapping would end up being greatly displaced from the load centreline, to one side or the other (since the cooperation position of the two assemblies, wherein the welding occurs, is determined by the detection of the full unwinding of assembly 19). If the length was much longer or shorter than the required one, it would of course not be possible to complete the wrapping, unless undesired sliding movements of the film on the load are allowed to occur.
  • winding drum 20 has fully unwound the film previously stored and retains only a short edge, between gripper means 21, which runs on the welding blocks and stretches around the load ( fig. 6 ).
  • Welding blocks 16s and 19s are brought into mutual engagement, so as to perform the welding of the terminal edge of the film - now fully removed from column winding unit 20 - against the film portion carried by assembly 12 and still joined to respective reel 8.
  • temporary winding assembly 20 and transfer means 12 can return towards rotary support 6, to begin a new gripping and laying cycle of the film with the same reel or with a new reel.
  • the apparatus of the invention perfectly achieves the objects set forth in the premises.
  • the curtain wrapping apparatus requires a single support station of the plurality of reels, to the advantage of a significant reduction of the bulks and costs.
  • the presence of a single reel per type makes the management more efficient and reduces idle times as well as film waste.
  • the original cooperation between temporary stockpiling assembly 19, coupling bar 18 and transfer means 12 allows an efficient management of the film, which leads to a full absence of jamming, to a high productivity of the machine, also in the presence of reel changes, and to a minimal waste of unused plastic film.
EP12184334.6A 2011-09-22 2012-09-13 Vertikalvorhang-Einschlagvorrichtung mit Multiformat-Zuführer Active EP2572999B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001711A ITMI20111711A1 (it) 2011-09-22 2011-09-22 Apparecchiatura di imballaggio a passaggio con alimentatore multiformato.

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EP2572999A1 true EP2572999A1 (de) 2013-03-27
EP2572999B1 EP2572999B1 (de) 2013-11-13

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DK (1) DK2572999T3 (de)
ES (1) ES2446387T3 (de)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112918734A (zh) * 2021-03-24 2021-06-08 宁波海曙灵匠自动化科技有限公司 一种热熔封口自动打包装置

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US3910005A (en) 1972-11-24 1975-10-07 Applic Thermiques Process and machine for packing
EP0401554A1 (de) * 1989-06-08 1990-12-12 BÜTTNER KOMMANDITGESELLSCHAFT MASCHINENFABRIK GMBH & CO. Maschine zum Umschnüren von Packstücken
WO1992015486A1 (de) * 1991-03-06 1992-09-17 Maschinenfabrik Gerd Mosca Gmbh Verfahren und maschine zum umschnüren von paketen oder stapeln mit einem band aus verschweissbarem kunststoff
EP0516602A1 (de) 1991-05-29 1992-12-02 Oy M. Haloila Ab Verfahren und Vorrichtung zum Einwickeln von Gegenständen
IT1356529B1 (it) 2004-06-24 2005-12-25 Sestese Off Mec Procedimento ed apparecchiatura per realizzare un imballaggio con pellicole di materiale plastico di diverse altezze
EP2452881A1 (de) 2010-11-10 2012-05-16 Officina Meccanica Sestese S.p.A. Vertikale Wickelvorrichtung zum Verpacken von Palettenladungen unterschiedlicher Höhe mit Folien aus Kunststoffmaterial

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910005A (en) 1972-11-24 1975-10-07 Applic Thermiques Process and machine for packing
EP0401554A1 (de) * 1989-06-08 1990-12-12 BÜTTNER KOMMANDITGESELLSCHAFT MASCHINENFABRIK GMBH & CO. Maschine zum Umschnüren von Packstücken
WO1992015486A1 (de) * 1991-03-06 1992-09-17 Maschinenfabrik Gerd Mosca Gmbh Verfahren und maschine zum umschnüren von paketen oder stapeln mit einem band aus verschweissbarem kunststoff
EP0516602A1 (de) 1991-05-29 1992-12-02 Oy M. Haloila Ab Verfahren und Vorrichtung zum Einwickeln von Gegenständen
IT1356529B1 (it) 2004-06-24 2005-12-25 Sestese Off Mec Procedimento ed apparecchiatura per realizzare un imballaggio con pellicole di materiale plastico di diverse altezze
EP2452881A1 (de) 2010-11-10 2012-05-16 Officina Meccanica Sestese S.p.A. Vertikale Wickelvorrichtung zum Verpacken von Palettenladungen unterschiedlicher Höhe mit Folien aus Kunststoffmaterial

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112918734A (zh) * 2021-03-24 2021-06-08 宁波海曙灵匠自动化科技有限公司 一种热熔封口自动打包装置

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ES2446387T3 (es) 2014-03-07
DK2572999T3 (da) 2014-01-27
EP2572999B1 (de) 2013-11-13

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