EP1106507A1 - Verfahren und Vorrichtung zum Anbringen einer Haube auf einem Gegenstand - Google Patents

Verfahren und Vorrichtung zum Anbringen einer Haube auf einem Gegenstand Download PDF

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Publication number
EP1106507A1
EP1106507A1 EP99830767A EP99830767A EP1106507A1 EP 1106507 A1 EP1106507 A1 EP 1106507A1 EP 99830767 A EP99830767 A EP 99830767A EP 99830767 A EP99830767 A EP 99830767A EP 1106507 A1 EP1106507 A1 EP 1106507A1
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EP
European Patent Office
Prior art keywords
hood
pick
product
machine
hoods
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Withdrawn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
EP99830767A
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English (en)
French (fr)
Inventor
Stefano Franchino
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.)
Effe 3 Tl Srl
Original Assignee
Effe 3 Tl Srl
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 Effe 3 Tl Srl filed Critical Effe 3 Tl Srl
Priority to EP99830767A priority Critical patent/EP1106507A1/de
Publication of EP1106507A1 publication Critical patent/EP1106507A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B65B9/13—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 preformed tubular webs being supplied in a flattened state
    • B65B9/135—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 preformed tubular webs being supplied in a flattened state for palletised loads

Definitions

  • the present invention relates to packaging techniques and concerns, in a first aspect, a method for packaging products, such as products arranged on a pallet, by means of a film material, preferably of an extendible type.
  • the invention relates to a machine adapted for use in carrying out the captioned method, while preserving, however, the possibility of carrying out packaging methods of a traditional type.
  • the invention has been developed by paying specific attention to the possible use in those techniques providing for a hood or bag formed from a spool of extendible film being used for packaging palletized and non-palletized products of different nature, volume, characteristics with a view of stabilizing the load, or connecting it in a firm manner to the pallet in order to increase the stability thereof during displacement and while being stocked and transported. All this by further protecting the product against dust and the surrounding environment.
  • a system for opening the hood intended to be used for the packaging operation.
  • the hood is taken by a set of mobile heads having associated therewith a horizontal opening mechanism as well as a mechanism for collecting and folding the hood over its length, while ensuring that the hood is expanded, by stretching the film, in such a way as to be adapted to be placed around the products being packed.
  • the captioned mobile heads are mounted on a carrier which is subsequently lowered in order to gradually apply the hood onto the product by extending it over the product.
  • shrinkable films are used, additional problems may arise related to the fact that, in order to obtain an effective degree of shrinking of the film, an abrupt heating of the hood located on packaged product is required, which makes it necessary to use high power heating sources, such as gas or electrical resistance sources, etc.
  • high power heating sources such as gas or electrical resistance sources, etc.
  • resorting to heat sources in order to obtain shrinking of the film may cause the film to become overheated, with risks of fire, possibly in unattended stockage areas.
  • the object of the present invention is to overcome the drawbacks outlined above in order to take advantage of the elastic characteristics, both vertical and horizontal, of the extendible film used for packaging. All this by reducing the cost of packaging, while also dispensing with the use of ovens and other heating sources.
  • the machine of the invention is indicated 1 overall.
  • a scaffolding or framework 2 preferably comprised of a robust metallic frame having, still preferably, a general bridge-like structure which enables it to be arranged above a support and/or transportation structure S (of a known'type) onto which the products P to be packed are subsequently positioned.
  • Structure S may be of any kind: for example, one may have to do with a conveyor, for instance of the motor-driven type, gradually advancing products P under frame 2: alternatively one may simply have to do with a rest plane. Also, the presence of structure S is, per se not mandatory, in that the machine 1 of the invention may, at least in principle, operate also on products P resting directly on the ground.
  • Adjacent scaffolding or framework 2 preferably in the lower portion thereof, at least one station 3 is provided for dispensing the film material F to be used for packaging.
  • Framework 2 carries, in a generally upper portion thereof, a guide structure 4 including for instance two horizontal rails adapted to be displaced vertically with respect to framework 2 (see for instance figures 5 to 8) under the action of respective motor means, not shown but of a known type (for instance, fluid-actuated jacks).
  • a carriage 5 is arranged for movement along rails 4 (also in this case, under the action of motor means not specifically shown in the drawings, but of a known type) carrying at its underside at least one pick-up structure 6 to be described in greater detail in the following.
  • carriage 5 is arranged to reciprocate with respect to rails 4 in order to selectively carry structure 6 in positions vertically aligned with the output end of station 3 and products P, respectively.
  • two structures 6 are provided carried by a carousel-like structure 60.
  • the arrangement is such that, by causing the carousel-like structure to rotate about a vertical axis X60, pick-up structures 6 rotate around axis X60.
  • pick-up structures 6 rotate around axis X60.
  • the other structure 6 is vertically aligned with a product P and the possibility of rotation of structure 60 (in turn actuated by motor means not specifically shown, but of a known type) enables the two structures 6 to exchange their positions.
  • the solution of the invention lends itself to the possibility of using, in association with a single framework 2 (onto which one or two pick-up structures 6 are mounted), two or more stations 3 for dispensing films F of different sizes.
  • This solution (not specifically shown, but certainly included within the scope of the present invention) allows the machine of the invention to be provided with the possibility of operating in a fast sequence on products P having respective dimensions which may also significantly differ.
  • the or each station 3 includes, in the operating condition, a spool 11 of an extendible film F mounted on a shaft adapted for free rotation onto two supports lla.
  • a spool 11 of an extendible film F mounted on a shaft adapted for free rotation onto two supports lla.
  • a brake system is provided for absorbing the rotational inertia of spool 11 as a film F is unwound.
  • a motor-driven roller 12 and an idle counter roller 13 unwind film F from spool 1.
  • a clamp 14 holds the free end of film F slightly protruding above the zone of intervention of a pick-up arrangement including, in the embodiment shown, two groups of clamps or suckers 14 adapted for acting on the opposed surfaces of film F at opposed, complementary positions in order to cause opening thereof.
  • Reference numeral 16 indicates two opposed elements of a welding assembly adapted to act on film F in order to close the tubular structure thereof at selectively determined positions.
  • a cutting member (such as a motor-driven blade 17) selectively acts on the zones welded by causing the film F to be segmented with the ensuing formation of hood- or bag-like elements C in sequence.
  • reference 18 denotes a support structure for clamps or suckers 15 arranged for a general lifting and lowering movement with respect to framework 2, further enabling reciprocating motion of pick-up formations 15.
  • the or each pick-up structure 6 is substantially comprised of an assembly of arm-like elements 20 (see first of all the plan view of figure 3), extending parallel or at least substantially parallel to one another, thereby jointly defining the vertical edges of a notional parallelepiped cage. All this with the possibility, realized by means of motor means (not specifically shown, but of a known type, also for similarly uses) of selectively varying the dimensions and the plan shape of the cage whose edges are defined by elements 20.
  • elements 20 can be selectively arranged:
  • the dimensions taken up by the notional cage defined by elements 20 in the contracted and in the expanded positions, respectively, may furthermore be selectively varied (by acting - also in this case in a known manner - on the motor elements associated with elements 20) in order to meet specific operational needs.
  • the contracted position is chosen in such a way that, in these conditions, elements 20 can penetrate into a hood C just formed (according to the criteria better shown and described in the following) in station 3.
  • the expanded position is determined in a such a way that, in these conditions, elements 20 can descend from above onto a product P and apply thereon the captioned hood C.
  • the solution shown herein provides for the use of four elements 20 located at the notional edges of a regular prism with a parallelogram section.
  • the number of elements 20 and the respective locations may however be different. Specifically, it is possible to use a number of elements 20 less than four (for instance equal to three) or more than four (for instance, five or more elements 20).
  • Figure 1 shows how, from a starting position corresponding to that shown in figure 2, a hood of a film material F having a general bag-like shape can be formed in station 3 starting from film F.
  • pick-up formations (such as clamp or suckers) 15 are moved against the opposed sides of the free end of film F protruding above clamp 14 in such way as to draw and pull it upwarly as a result of the lifting movement of the motor-driven structure 18 onto which pick-up formations 15 are mounted .
  • structure 6 is expanded, so that elements 20 cause hood C to extend thereby stretching the film comprising the hood.
  • openings 201 are provided at the outer surfaces of elements 20 in communication with inner cavities of the respective elements 20. These cavities are in turn connected, through conduits not specifically shown, to a sub-atmospheric pressure source (in practice a so-called vacuum source) including, for instance, a pneumatic compressor 202.
  • a sub-atmospheric pressure source in practice a so-called vacuum source
  • a pneumatic compressor 202 including, for instance, a pneumatic compressor 202.
  • source 202 is preferably provided with respective control means, e.g. a pneumatic distributor assembly 203, enabling to make it selectively invertible, i.e. adapted for alternatively operating both as a source of a sub-atmospheric pressure and as a source of super-atmospheric pressure.
  • control means e.g. a pneumatic distributor assembly 203
  • compressor 202 In operation as a sub-atmospheric pressure source, compressor 202 (which, to advantage, is also used to provide sub-atmospheric pressure to suckers of groups 15) gives rise, within elements 20, to a sub-atmospheric pressure level such as to induce, through openings 201, a pressure difference or gradient acting to hold hood C onto structure 6 during the pick-up movement from station 3 thus avoiding undesired downward sliding thereof, particularly when structure 6 is still in the contracted position.
  • structure 4 is moved downwardly again in such a manner that hood C is gradually applied onto the product P due to a general extroversion mechanism, i.e. by turning it inside-out.
  • That mechanism is carried out by bringing the bottom portion C2 of hood C adjacent the upper portion of product P and then by moving elements 20 (kept expanded, in order not to interfere with product P) downwardly in such a way that the captioned bottom portion C2 abuts against the upper portion of product P. Due to the gradual downward movement (figures 7 and 8), hood C slides along elements 20, by becoming turned inside-out until the final position is reached where mouth portion C1, pushed downwardly by elements 20, is located at the bottom of product P, usually extending under pallet P. This latter is possibly lifted with respect to structure S (through lifting means L, of a known type) just to make sure that mouth portion C1 of hood or bag C may extend under pallet P (this latter solution being preferred, even thought not mandatory).
  • the captioned extroversion mechanism causes the surface or face of film which initially was located at the exterior of the hood C as formed in station 3 to be applied against product P, i.e. being located at the inner surface of the hood in the final packaging arrangement.
  • hood C is formed at a station 3 located in a generally lower portion of framework 2, thereby avoiding the presence of bulky elements or systems above products P.
  • compressor 202 is again used, as is the case when hoods C are picked-up from station 3, to vary the coupling relationship between elements 20 and hood C.
  • compressor 202 is actuated in such a way to reinforce the captioned coupling relationship, in order to prevent hood from sliding downwardly along elements 20, in this case, compressor 202 is operated in an exactly opposite manner.
  • compressor 202 is actuated, for instance by acting on element 203, in such a way as to cause the inner spaces of elements 20 to be at a super-atmospheric pressure.
  • the alternative embodiment reproduces the features of the machine shown in figure 1 to 8, but for two pick-up structures 6 as disclosed in the foregoing being provided on carousel-like structure 60 in such way to exchange their roles in picking-up hoods C in station 3, on the one hand, and applying hoods C onto products P, on the other hand.
  • structures 6 can be moved upwardly again and carousel-like structure 60 is rotated about its vertical axis X60, so as to bring, as a result of a single rotation movement:
  • the machine structure just described lends itself to be used also for carrying out packaging operations which provide for product P to be only laterally wound, for instance with a small extension (for instance of 10 cm) at the upper, and possibly at the lower portion.
  • This solution enables a good stabilization of the product or pre-packaging, without achieving full protection with respect to the environment, with the economic advantage of sparing that portion of film comprising the upper portion of protecting hood.
  • these packaging solutions are realized by resorting to so called winders or winding packers adapted for winding the film in a spiral-like arrangement around the products or by using twin-spool lateral winders with vertical axes by using a heat-shrinkable film.
  • retaining elements such as clamps or pincers, not shown, but self-evident in their nature
  • retaining elements must be provided in order to keep the tubular film extended as unit 6 is lifted with respect to the product P just packaged, thereby ensuring that the packaging is properly retained onto product P and not' pulled upwardly again.
  • hood C is expanded and applied onto the product P by avoiding, at least in a substantially manner, the formation of plies or wrinkles deriving from the hood having been folded.
  • shrinking of hood C may be obtained by exclusively taking advantage of the elastic characteristics of the film becoming stretched as the elements 20 of pick-up unit 6 are opened-up, thereby dispensing with the need of resorting to heat sources, with the disadvantages referred to the introductory portion of the description.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP99830767A 1999-12-09 1999-12-09 Verfahren und Vorrichtung zum Anbringen einer Haube auf einem Gegenstand Withdrawn EP1106507A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99830767A EP1106507A1 (de) 1999-12-09 1999-12-09 Verfahren und Vorrichtung zum Anbringen einer Haube auf einem Gegenstand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99830767A EP1106507A1 (de) 1999-12-09 1999-12-09 Verfahren und Vorrichtung zum Anbringen einer Haube auf einem Gegenstand

Publications (1)

Publication Number Publication Date
EP1106507A1 true EP1106507A1 (de) 2001-06-13

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EP99830767A Withdrawn EP1106507A1 (de) 1999-12-09 1999-12-09 Verfahren und Vorrichtung zum Anbringen einer Haube auf einem Gegenstand

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510460A1 (de) * 2003-08-28 2005-03-02 OFFICINA MECCANICA SESTESE S.p.A. Verfahren und Vorrichtung zum versiegelten Umverpacken einer Ladung mit einer Schlauchfolie aus dehnbarem Kunststoffmaterial
WO2005042346A1 (en) * 2003-11-04 2005-05-12 Roboconsult Aps Apparatus and method for building and wrapping a load
EP1574433A1 (de) * 2004-03-11 2005-09-14 Thimon Verfahren und Vorrichtung zum Herstellen und Anbringen mit hoher Geschwindigkeit einer Verpackungshaube auf eine palettisierte Ladung
FR2893005A1 (fr) * 2005-11-10 2007-05-11 Thimon Sa Procede et machine de preparation et de depose d'un manchon d'emballage sur une charge palettisee.
EP2993134A1 (de) * 2014-09-05 2016-03-09 OFFICINA MECCANICA SESTESE S.p.A. Überzugmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2153587A5 (de) * 1971-09-16 1973-05-04 Somme Ste Indle Agricole
GB2087338A (en) * 1980-11-11 1982-05-26 Grace W R & Co Apparatus and method for wrapping sausage or cheese in a fflexible wrapping material
EP0076867A1 (de) * 1981-10-09 1983-04-20 Axel Frommelt Verfahren und Vorrichtung zum Überziehen grösserer Gegenstände mit einer Schlauchfolie
DE3523729A1 (de) * 1985-07-03 1985-11-21 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm Vorrichtung zum ueberziehen von gutstapeln mit einer haube aus waermeschrumpffaehigem kunststoff
DE4103384A1 (de) * 1990-02-06 1991-08-08 Hannen Reiner Develog Vorrichtung zum ueberziehen von stretchfolienhauben ueber einen gutstapel
EP0633186A1 (de) * 1990-06-15 1995-01-11 Bernhard Beumer Maschinenfabrik KG Verfahren und Vorrichtung zum Umhüllen von Stückgut

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2153587A5 (de) * 1971-09-16 1973-05-04 Somme Ste Indle Agricole
GB2087338A (en) * 1980-11-11 1982-05-26 Grace W R & Co Apparatus and method for wrapping sausage or cheese in a fflexible wrapping material
EP0076867A1 (de) * 1981-10-09 1983-04-20 Axel Frommelt Verfahren und Vorrichtung zum Überziehen grösserer Gegenstände mit einer Schlauchfolie
DE3523729A1 (de) * 1985-07-03 1985-11-21 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm Vorrichtung zum ueberziehen von gutstapeln mit einer haube aus waermeschrumpffaehigem kunststoff
DE4103384A1 (de) * 1990-02-06 1991-08-08 Hannen Reiner Develog Vorrichtung zum ueberziehen von stretchfolienhauben ueber einen gutstapel
EP0633186A1 (de) * 1990-06-15 1995-01-11 Bernhard Beumer Maschinenfabrik KG Verfahren und Vorrichtung zum Umhüllen von Stückgut

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510460A1 (de) * 2003-08-28 2005-03-02 OFFICINA MECCANICA SESTESE S.p.A. Verfahren und Vorrichtung zum versiegelten Umverpacken einer Ladung mit einer Schlauchfolie aus dehnbarem Kunststoffmaterial
WO2005042346A1 (en) * 2003-11-04 2005-05-12 Roboconsult Aps Apparatus and method for building and wrapping a load
EP1574433A1 (de) * 2004-03-11 2005-09-14 Thimon Verfahren und Vorrichtung zum Herstellen und Anbringen mit hoher Geschwindigkeit einer Verpackungshaube auf eine palettisierte Ladung
FR2867452A1 (fr) * 2004-03-11 2005-09-16 Thimon Procede et dispositif de mise en forme et de depose a haute cadence d'une housse d'emballage sur une charge palettisee.
FR2893005A1 (fr) * 2005-11-10 2007-05-11 Thimon Sa Procede et machine de preparation et de depose d'un manchon d'emballage sur une charge palettisee.
WO2007054647A1 (fr) * 2005-11-10 2007-05-18 Thimon Procede et machine de preparation et de depose d'un manchon d'emballage a film etirable sur une charge palettisee
CN101331061B (zh) * 2005-11-10 2010-06-16 蒂蒙公司 用于制备和在码放的装载物上附着拉伸薄膜包装套的方法和机器
US7937910B2 (en) 2005-11-10 2011-05-10 Thimon Method and machine for preparing and depositing a stretch-film packaging sleeve on a palletized load
EP2993134A1 (de) * 2014-09-05 2016-03-09 OFFICINA MECCANICA SESTESE S.p.A. Überzugmaschine

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