EP1489003A1 - Vorrichtung zum Umhüllen von Gegenständen mit Umhüllungsfolie - Google Patents

Vorrichtung zum Umhüllen von Gegenständen mit Umhüllungsfolie Download PDF

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Publication number
EP1489003A1
EP1489003A1 EP04425441A EP04425441A EP1489003A1 EP 1489003 A1 EP1489003 A1 EP 1489003A1 EP 04425441 A EP04425441 A EP 04425441A EP 04425441 A EP04425441 A EP 04425441A EP 1489003 A1 EP1489003 A1 EP 1489003A1
Authority
EP
European Patent Office
Prior art keywords
film
group
ring
products
wrapping
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Withdrawn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
EP04425441A
Other languages
English (en)
French (fr)
Inventor
Mauro Cere
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.)
Aetna Group SpA
Original Assignee
Aetna Group 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 Aetna Group SpA filed Critical Aetna Group SpA
Publication of EP1489003A1 publication Critical patent/EP1489003A1/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Withdrawn legal-status Critical Current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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/008—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material by webs revolving around articles moved along the axis of revolution

Definitions

  • the present invention relates to an apparatus for wrapping groups of products with stretch plastic film.
  • This apparatus basically has a horizontal surface which feeds the group or groups of products towards a wrapping device consisting of a ring (through which the product passes) and an unwinding unit consisting of a reel of plastic film and an idle roller which dispenses the film at a product wrapping area.
  • a wrapping device consisting of a ring (through which the product passes)
  • an unwinding unit consisting of a reel of plastic film and an idle roller which dispenses the film at a product wrapping area.
  • the ring is rotatably supported by a set of rollers distributed along its circumference and integral with a base frame, the ring - supporting rollers assembly lying in a vertical plane which is perpendicular to the horizontal product feed surface.
  • the unwinding unit including the reel, turns together with the motor-powered ring in such a way that the products fed horizontally are wrapped with the film extending in a spiral configuration due to the combination of ring / unwinding unit - product movements.
  • the product is wrapped together with a portion of the feed surface, close to the ring, which has an architecture that, when the products are fed along the direction of feed, allows the film wrapped around to be slipped off at the trailing end of the surface, adjacent to another station for ejection of the wrapped product.
  • group feed and roller rotation are normally slowed or stopped to allow the film to be cut and the final flap of film to be stuck on the group of products.
  • this operation is performed using a film gripping and cutting unit, which can be inserted in the last turns of film on the pack, so as to intercept and narrow a section of film, wound between the group of products and the roller, until it forms a film cord which is cut by a knife present on the unit. Once the film has been cut, the flap is stuck directly to the group of products by simple adhesion and by compression.
  • Adhesion by compression of the final flap of film cut on the rest of the film already wrapped has been effective until now, but for some products to be wrapped, such as panels or furniture components which have to be stacked on top of one another in warehouses and must be able to slide relative to one another, said procedure may be insufficient. This is because the ability to slide requires the use of a film with low surface adhesion which is not well suited to the above-mentioned technique of sealing by adhesion.
  • this negative aspect affects sealing of the final flap, which may become detached from the rest of the film, making product sealing imperfect or unsatisfactory.
  • the aim of the present invention is, therefore, to overcome this disadvantage by providing an apparatus for wrapping groups of products with stretch film which has a structure designed to allow the final flap of film to adhere to the wrapped group in a way that is always precise and secure irrespective of the type of film used for wrapping.
  • an apparatus for wrapping groups of products with plastic film comprising: a horizontal surface for supporting the group and feeding it in a given direction, the surface being divided into two portions positioned on opposite sides of a ring equipped with means for dispensing film around the group of products passing through the ring, and in such a way as to wrap the group of products in a spiral and according to a predetermined direction; a film gripping and cutting unit designed to allow the formation of a wrapping tail end for the group of products; the unit being positioned close to the ring and at the portion of the surface upstream of the ring, relative to the direction of feed, and wrapped by the film; means for joining the film acting on a section of film wrapped around the group, said means being positioned close to the gripping and cutting unit so as to allow the section of film subsequently forming part of the tail end to be joined to the coils of film above and so stably sealing the wrapping on the group of products.
  • the apparatus disclosed is used to wrap groups 1 of products with plastic film, for example stretch film.
  • the products may be, by way of example and without limiting the scope of the invention, panels or furniture units which are chiefly flat.
  • This apparatus labelled 2 as a whole, comprises:
  • the above-mentioned film F dispensing means 5, of the known type basically comprise a reel 5a of film and a plurality of pre-tensioning and idle rollers 5b, 5c for the film F which operate during rotation of the ring 4 and of the carriage 5e supporting the reel 5a and rollers 5b, 5c.
  • the apparatus 2 also comprises means 7 for joining the film F acting on a section T of film F wrapped around the group 1 of products.
  • These joining means 7 are positioned close to the gripping and cutting unit 6 so as to allow the section T of film F subsequently forming part of the tail end C to be joined to the coils S of film above, stably sealing the wrapping on the group 1 of products.
  • the joining means 7 may be, by way of example and without limiting the scope of the invention, sealing means positioned close to the portion 3a of the surface 3 upstream of the ring 4 and upstream of the gripping and cutting unit 6 relative to the direction V of wrapping.
  • the portion 3a of the surface 3 upstream of the wrapping ring 4 comprises at least one end consisting of two conveyor belts 8a and 8b, parallel with one another, closed in a loop and designed to have the film F partially wrapped around them.
  • These belts 8a and 8b have a construction architecture designed to allow extraction of the film F wrapped around them as the group 1 of products is fed forwards (structure not illustrated, being of the known type and not forming part of the subject matter of the present invention).
  • the sealing means 7 are positioned under one of the belts, labelled 8a, whose lower branch is fitted with a counter-plate 9 for the sealing means 7.
  • the gripping and cutting unit 6 comprises at least one horizontal rod 10 (illustrated with a dashed line), mobile axially in both directions along the direction A (see arrows F1) and designed to move close to one side (the lower one) of the group 1 so as to allow at least one coil S of film F to be wrapped over the rod 10 to form an opening between the group 1 and the coil S.
  • a first arm 11 with gripper means 12 designed to pick up the section T of film, which is part of a final coil S1 wrapped around the trailing end 1a of the group 1, between the rod 10 and the dispensing means 5, and cause it to narrow until the cord-shaped section T of film is formed.
  • the sealing means 7 are upstream of the cutting means 13 relative to the direction of wrapping V.
  • the sealing means act on the cord-shaped section T of film of the final coil S1 before activation of the cutting means 13 acting on the same cord-shaped section T.
  • the sealing means 7 may comprise:
  • the counter-plate 9 is "U"-shaped, designed to encompass and protect both sides of the belt 8a from below without affecting belt 8a movement.
  • An apparatus structured in this way operates as follows: the group 1 being wrapped is fed along the supporting surface 3 in the direction of feed A and, after reaching the pair of belts 8a and 8b, begins being wrapped by rotation of the ring 4 with the reel 5a as it passes through the ring 4 and reaches the other part of the surface 3, downstream of the ring 4 (as illustrated in Figure 1).
  • the first arm 11 equipped with the gripper means 12 is activated.
  • the latter pick up the section T of film, which is part of the final coil S1, between the rod 10 and the dispensing means 5, and cause it to narrow, by moving the first arm 11 backwards (see arrow F3) until the section T of film becomes cord-shaped.
  • sealing means 7 are activated and, by the movement of the second arm 15, bring the sealing plate 14 into contact with the counter-plate 9, joining the final coil S1 to the coils S above.
  • the cutting means 13 are activated, separating the final coil S1 from the film F originating from the reel 5a so that the group 1 thus obtained can be freed and released to the remaining zone of the surface 3, downstream of the ring 4.
  • An apparatus structured in this way therefore, fulfils the preset aims thanks to the fact that it is equipped with means for creating a stable join, such as the sealing means, which are structured in such a way that they do not alter the architecture of the apparatus, but are integrated in it.
  • the joining operation is extremely rapid and does not affect apparatus production times, but it does make group sealing extremely secure, with an acceptable appearance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP04425441A 2003-06-20 2004-06-15 Vorrichtung zum Umhüllen von Gegenständen mit Umhüllungsfolie Withdrawn EP1489003A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20030383 2003-06-20
ITBO20030383 ITBO20030383A1 (it) 2003-06-20 2003-06-20 Apparecchiatura per l'avvolgimento di gruppi di prodotti

Publications (1)

Publication Number Publication Date
EP1489003A1 true EP1489003A1 (de) 2004-12-22

Family

ID=33398038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425441A Withdrawn EP1489003A1 (de) 2003-06-20 2004-06-15 Vorrichtung zum Umhüllen von Gegenständen mit Umhüllungsfolie

Country Status (2)

Country Link
EP (1) EP1489003A1 (de)
IT (1) ITBO20030383A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007107586A1 (en) * 2006-03-21 2007-09-27 Robopac S.A. Apparatus for wrapping objects
FR2998271A1 (fr) * 2012-11-16 2014-05-23 Probag Cie De Prot Des Bagages Machine d'emballage de bagages
CN105836202A (zh) * 2016-06-14 2016-08-10 浙江工业大学 铝型材简易包装机
CN106829024A (zh) * 2017-04-07 2017-06-13 祝凤娟 一种纸巾绕包机
IT201600103903A1 (it) * 2016-10-17 2018-04-17 Colines Spa Macchina e metodo perfezionati di imballaggio in pellicola estensibile di prodotti alimentati a gruppi o singolarmente
CN117342054A (zh) * 2023-12-06 2024-01-05 湖南亿铠达新材料科技有限公司 一种夹芯复合板材打包设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317322A (en) * 1980-05-20 1982-03-02 Lantech, Inc. Rotatable film wrapping apparatus with wrap carrying mechanism
US4545182A (en) * 1983-03-24 1985-10-08 Mcdowell Jr Kenneth J Rotating film wrapping apparatus with traveling clamp
US4549388A (en) * 1983-09-13 1985-10-29 Lantech, Inc. Package sealing apparatus
US4593518A (en) * 1983-08-17 1986-06-10 Lantech, Inc. Flexible wrapping apparatus
IT1305805B1 (it) 1998-09-18 2001-05-16 Robopac Sistemi Srl Procedimento e dispositivo per la definizione di un lembo finale difilm plastico ed il relativo bloccaggio dello stesso lembo su gruppi

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317322A (en) * 1980-05-20 1982-03-02 Lantech, Inc. Rotatable film wrapping apparatus with wrap carrying mechanism
US4545182A (en) * 1983-03-24 1985-10-08 Mcdowell Jr Kenneth J Rotating film wrapping apparatus with traveling clamp
US4593518A (en) * 1983-08-17 1986-06-10 Lantech, Inc. Flexible wrapping apparatus
US4549388A (en) * 1983-09-13 1985-10-29 Lantech, Inc. Package sealing apparatus
IT1305805B1 (it) 1998-09-18 2001-05-16 Robopac Sistemi Srl Procedimento e dispositivo per la definizione di un lembo finale difilm plastico ed il relativo bloccaggio dello stesso lembo su gruppi

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007107586A1 (en) * 2006-03-21 2007-09-27 Robopac S.A. Apparatus for wrapping objects
FR2998271A1 (fr) * 2012-11-16 2014-05-23 Probag Cie De Prot Des Bagages Machine d'emballage de bagages
CN105836202A (zh) * 2016-06-14 2016-08-10 浙江工业大学 铝型材简易包装机
IT201600103903A1 (it) * 2016-10-17 2018-04-17 Colines Spa Macchina e metodo perfezionati di imballaggio in pellicola estensibile di prodotti alimentati a gruppi o singolarmente
WO2018073045A1 (en) * 2016-10-17 2018-04-26 Colines S.P.A. Perfected machine and method for packaging in extensible film products fed in groups or individually
CN109843729A (zh) * 2016-10-17 2019-06-04 科林斯股份公司 用于将成组或单独进给的产品包装在可伸展的薄膜中的改进的机器和方法
US11111038B2 (en) 2016-10-17 2021-09-07 Colines S.P.A. Perfected machine and method for packaging in extensible film products fed in groups or individually
CN106829024A (zh) * 2017-04-07 2017-06-13 祝凤娟 一种纸巾绕包机
CN117342054A (zh) * 2023-12-06 2024-01-05 湖南亿铠达新材料科技有限公司 一种夹芯复合板材打包设备
CN117342054B (zh) * 2023-12-06 2024-04-09 湖南亿铠达新材料科技有限公司 一种夹芯复合板材打包设备

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Publication number Publication date
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