EP1520790A1 - Appareil combiné de suremballage étanche comportant des volets de blindage pivotants - Google Patents

Appareil combiné de suremballage étanche comportant des volets de blindage pivotants Download PDF

Info

Publication number
EP1520790A1
EP1520790A1 EP04104825A EP04104825A EP1520790A1 EP 1520790 A1 EP1520790 A1 EP 1520790A1 EP 04104825 A EP04104825 A EP 04104825A EP 04104825 A EP04104825 A EP 04104825A EP 1520790 A1 EP1520790 A1 EP 1520790A1
Authority
EP
European Patent Office
Prior art keywords
ring structure
load
hot
operational position
hood
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Withdrawn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
EP04104825A
Other languages
German (de)
English (en)
Inventor
Luciano Calzavara
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
Original Assignee
Officina Meccanica Sestese SpA
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 Officina Meccanica Sestese SpA filed Critical Officina Meccanica Sestese SpA
Publication of EP1520790A1 publication Critical patent/EP1520790A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/066—Mobile frames, hoods, posts or the like

Definitions

  • the present invention relates to an apparatus for the overwrapping of a load for the packaging industry, in particular a combined apparatus for the overwrapping of a load, i.e. wherein there are provided both means for picking up, opening and force-fitting an upturned bag or hood of heat-shrinkable plastic material on a load placed on a pallet, and also heating means to cause the heat-shrinking of said hood of plastic material.
  • Such heating means are essentially hot-air generators (such as gas burners, or electric heaters installed along the perimeter of a quadrilateral ring structure, sized so as to encircle the load to be overwrapped and so as to be able to slide vertically therealong, thus evenly applying the heat sufficient to cause shrinking of the hood.
  • hot-air generators such as gas burners, or electric heaters installed along the perimeter of a quadrilateral ring structure, sized so as to encircle the load to be overwrapped and so as to be able to slide vertically therealong, thus evenly applying the heat sufficient to cause shrinking of the hood.
  • the ring of burners moves down to the bottom of the load, where the open edge of the hood is arranged, and it begins to heat (blowing out air as hot as 300°C) while slowly rising back up to the top of the hood.
  • This procedure allows to achieve the best results: in fact, at the beginning, the free edge of the hood is heated which, shrinking, strongly adheres to the pallet lying underneath the load, thereby creating a fastening point for the hood itself; successively, also the upper portion of the hood progressively shrinks around the load and evenly stiffens it.
  • the size of the combined overwrapping apparatus is suitably adjusted to the size of the largest load to be handled; this implies, in particular, that the ring structure carrying the hot-air generators be sized so that the outlet of such generators is at a distance, from the surface of the largest load to be overwrapped, which is sufficient to avoid the heat-shrinkable film of the wrapping hood being damaged by the hot air; on the other hand, such distance is to be fairly short in order to ensure correct heat-shrinking of the film even when a small-sized load is handled, the surface of which is at a certain distance from the generators.
  • the perimeter size of the load may be subject to sensible variations. Should free flame burners be installed instead, only modest changes of the load perimeter size may be acceptable; the same can be said in case electric hot-air heaters are employed.
  • the solution identified by the invention hence provides the use of deflector shields, which are capable of taking up at least two positions:
  • the solution proposed by the invention may be used indifferently both when the ring structure is equipped with electric air heaters, and in the case that gas burners are provided; for this reason, reference is always made in the following of the description to hot-air generators, meaning by this term either one of the types indicated above.
  • the ring structure consists of a quadrangular frame 1 and, on each of the four sides thereof, of a hot-air generator assembly 2.
  • Each of these assemblies 2 comprises, in the illustrated case, a gas burner 3 fitted to one end and a blower 4 fitted to the other end to generate mixing air and to push said air towards the outlet nozzles 5 (see figures 2 to 4).
  • deflector shields 7 are hinged onto shafts 6 running parallel to walls 2A of assemblies 2.
  • Such shields 7 may be tipped from a non-operational position, visible in figures 3a and 3b, wherein they are arranged vertically, parallel to the vertical walls of the corresponding assemblies 2 (see better in fig. 3b), to a normal operational position, visible in figures 2a and 2b, wherein they are tipped down, in a sub-horizontal position, for example by about 105° to the vertical position, for the function better illustrated in the following.
  • Figures 4a and 4b illustrate an intermediate operational position, wherein the shields are oriented horizontally, i.e. at 90° to the position of figures 2a and 2b.
  • the tipping down movement of deflector shields 7 is preferably positively controlled by motor means (not shown in detail in the drawings) generally controlled by the apparatus; by this system it is possible to control tipping down of the deflector shields 7 in relation to the size of each load arriving at the wrapping station.
  • motor means not shown in detail in the drawings
  • such motor drive - which would increase costs - may be avoided by manually providing to tip down the deflector shields at the beginning of each sequence.
  • the deflector shields 7 When the deflector shields 7 are tipped into an operational position (see figures 2 and 4), they intercept a peripheral area of the inner headroom of the ring structure, i.e. they resize such inner headroom proportionally to the minimum size of the loads to be overwrapped. More specifically, the distance between the opposite inner ends of the shields, in an operational position, is shown by (b) in figures 2 and 4, which is remarkably shorter than the distance (a), but in any case still greater than the plan size of minimum loads or loads slightly larger than minimum loads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP04104825A 2003-10-02 2004-10-01 Appareil combiné de suremballage étanche comportant des volets de blindage pivotants Withdrawn EP1520790A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20031892 2003-10-02
ITMI20031892 ITMI20031892A1 (it) 2003-10-02 2003-10-02 Apparecchiatura incappucciatrice combinata, con scudi deflettori a ribaltamento.

Publications (1)

Publication Number Publication Date
EP1520790A1 true EP1520790A1 (fr) 2005-04-06

Family

ID=34308117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04104825A Withdrawn EP1520790A1 (fr) 2003-10-02 2004-10-01 Appareil combiné de suremballage étanche comportant des volets de blindage pivotants

Country Status (2)

Country Link
EP (1) EP1520790A1 (fr)
IT (1) ITMI20031892A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2082861A5 (en) * 1970-03-25 1971-12-10 Hurdequint Louis Shrink-wrapping oven - drops over a pack to shrink the bag mouth uniformly using directional hot air jets
DE8612337U1 (de) * 1986-05-06 1987-08-13 Möllers Maschinenfabrik GmbH, 4720 Beckum Vorrichtung zum Heißschrumpfen einer Folie um einen zu verpackenden Gegenstand
DE3732272A1 (de) * 1987-09-25 1989-04-13 Moellers Maschf Gmbh Vorrichtung zum heissgasschrumpfen einer folie mit gasbrennern
US5111528A (en) * 1989-03-10 1992-05-05 Msk-Verpackungs-Systems Gesellschaft Mit Beschrankter Haftung Apparatus for heat shrinking wrapping using electrical air heating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2082861A5 (en) * 1970-03-25 1971-12-10 Hurdequint Louis Shrink-wrapping oven - drops over a pack to shrink the bag mouth uniformly using directional hot air jets
DE8612337U1 (de) * 1986-05-06 1987-08-13 Möllers Maschinenfabrik GmbH, 4720 Beckum Vorrichtung zum Heißschrumpfen einer Folie um einen zu verpackenden Gegenstand
DE3732272A1 (de) * 1987-09-25 1989-04-13 Moellers Maschf Gmbh Vorrichtung zum heissgasschrumpfen einer folie mit gasbrennern
US5111528A (en) * 1989-03-10 1992-05-05 Msk-Verpackungs-Systems Gesellschaft Mit Beschrankter Haftung Apparatus for heat shrinking wrapping using electrical air heating

Also Published As

Publication number Publication date
ITMI20031892A1 (it) 2005-04-03

Similar Documents

Publication Publication Date Title
US4136767A (en) Vacuum operated can-conveying and can-uprighting apparatus
US3309835A (en) Method and apparatus for producing packages with a heat-shrink film
US3662512A (en) Method and apparatus for shrink-film wrapping a pallet load
ES2328281T3 (es) Procedimiento y dispositivo para la retraccion de una lamina termo-retractil colocada alrededor de una pila de productos, especialmente en plataformas de carga.
US3744146A (en) Shrink tunnel
US3777446A (en) Method and apparatus for wrapping a load with heat-shrinkable film
US3717939A (en) Shrink film oven
US7891157B2 (en) Machine for shrink-fitting of shrink wrap film onto packages
US3895476A (en) Shrink-film packaging method
US5819503A (en) Method and apparatus for wrapping a load including a waterproof top sheet
US4738082A (en) Apparatus for heat shrinking plastic film used for wrapping
DE3465052D1 (en) Method of packing pallettised stacks of goods, and device for carrying out the method
DE3363806D1 (en) Method and device for shrinking a shrinkable hood drawn over a stack of goods
EP1520790A1 (fr) Appareil combiné de suremballage étanche comportant des volets de blindage pivotants
DE50000600D1 (de) Vorrichtung zum schrumpfen einer heissschrumpffolie
KR20140138263A (ko) 물체들의 더미 상에 수축 필름을 수축시키는 장치 및 방법
US3673703A (en) Shrink-wrap film heating apparatus
US3826017A (en) Heating system
US5720153A (en) Wrapping method, and apparatus for implementing said method
RU94037957A (ru) Способ усадки чехла из усадочной пленки и устройство для его осуществления
ATE29450T1 (de) Verpackungsmaschine fuer produkte in heissschrumpfbarem film.
CN211468999U (zh) 一种热收缩膜包装机
US6336782B1 (en) Method and device for unloading sheet-like objects from containers
EP0249534B1 (fr) Procédé et installation pour l'emballage d'une charge palettisée dans une housse en matière plastique thermorétractable
SU1796096A1 (ru) Склад для хранения продукции сельского хозяйства

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20051007