WO2009011004A1 - Machine de conditionnement à emballage par film - Google Patents

Machine de conditionnement à emballage par film Download PDF

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Publication number
WO2009011004A1
WO2009011004A1 PCT/IT2008/000461 IT2008000461W WO2009011004A1 WO 2009011004 A1 WO2009011004 A1 WO 2009011004A1 IT 2008000461 W IT2008000461 W IT 2008000461W WO 2009011004 A1 WO2009011004 A1 WO 2009011004A1
Authority
WO
WIPO (PCT)
Prior art keywords
product
machine according
film
variator
speed
Prior art date
Application number
PCT/IT2008/000461
Other languages
English (en)
Inventor
Claudio Naldi
Valerio Forlivesi
Raniero Lombardi
Original Assignee
Mecwrap S.R.L.
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 Mecwrap S.R.L. filed Critical Mecwrap S.R.L.
Priority to ES08790050.2T priority Critical patent/ES2462948T3/es
Priority to US12/668,981 priority patent/US20100180555A1/en
Priority to EP08790050.2A priority patent/EP2173621B1/fr
Publication of WO2009011004A1 publication Critical patent/WO2009011004A1/fr

Links

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
    • B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
    • B65B11/025—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders by webs revolving around stationary articles
    • 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
    • B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
    • B65B2210/16—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser travelling around the article along a non-rotating ring
    • 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
    • B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
    • B65B2210/18—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser being mounted on a rotary ring

Definitions

  • Packaging machine in which a product is packaged by wrapping with a film of packaging material
  • the present invention relates to the technical sector of automatic packaging of products and in particular it relates to a wrapping machine in which products are packaged by forming a wrapper consisting of a film of suitable material which, in the form of a continuous web is wrapped around the product in repeated coils until the product is covered.
  • Such synchronising means operate with satisfactory efficiency in the machine operating steps in which the speeds involved are steady, or in any case quite close to said state.
  • control although operating in a relatively satisfactory way, may not be completely reliable in all operating situations which may occur in practice. Moreover, from a construction and economical viewpoint, said control may also be complex and expensive.
  • the present invention has for an aim to overcome the above-mentioned disadvantages with a packaging machine in which the speed at which the film is supplied and the revolving speed of the apparatus supporting the relative unwinding apparatus are mechanically synchronised in such a way as to provide definite, reliable synchronisation in all possible machine operating situations.
  • Figure 1 is a perspective assembly view of a machine made in accordance with the present invention
  • Figure 2 is an enlarged view of a part of the machine with some parts cut away to better illustrate others;
  • Figure 3 is an enlarged view of a detail from Figure 2;
  • Figure 4 is a view of the detail from Figure 3 seen from above.
  • the numeral 1 denotes as a whole a machine 1 for packaging products 2 which substantially has: a parallelepiped structure 20 with a portal delimited by four uprights 21 located at the vertices; a horizontal platform 22 inside the uprights 21; and an annular thrust bearing 23 below the platform 22, which supports an operating apparatus 4 that supplies a film 8 of packaging material.
  • the horizontal platform 22 is connected in a guide on the uprights 21 substantially at four of its vertices.
  • the platform 22 can move in such a way that it can translate vertically and alternately along the machine 1 structure 20, driven by drive means 37 which are completely conventional and are not strictly part of the present invention, therefore they are not described in detail.
  • the platform 22 encloses a generic product 2 to be packaged, said product being contained in the space inside the machine, coaxial with the structure 20 and on a stand 19 or an equivalent supporting roller conveyor.
  • the operating apparatus 4 comprises a unit 3 for unwinding the film 8 of packaging material, the unit 3 having a reel 30 of packaging material from which the film 8 is unwound in a conventional way in the form of a continuous web, which is then wrapped around the product 2 to be packaged, in this way creating a protective containment wrapper around the product.
  • FIG 2 also shows how the annular thrust bearing 23 and the operating apparatus 4 as a whole are integral with each other.
  • the thrust bearing 23 is also coaxial with the platform 22 and can rotate around a platform axis 22a in such a way that it can rotate around said axis 22a at the same time causing the operating apparatus 4 which is integral with it to rotate around the axis 22a.
  • the operating apparatus has a circular revolution trajectory around the product 2.
  • Rotation of the annular thrust bearing 23 and of the operating apparatus 4 relative to the platform 22 which supports both is motor-driven and is guaranteed by drive means labelled 24 as a whole.
  • Said drive means 24 substantially comprise: a gearmotor 24m equipped with a driving pulley 25; a driving belt 26 with respective belt 26 tensioning pulleys 26t.
  • the driving belt 26 is looped and fits around the thrust bearing 23 and the pulley 25 together and tightly with the contribution of the tensioning pulleys 26t.
  • the platform 22 also supports a fixed annular race 9 which, being integral with the platform 22, can only translate longitudinally relative to the axis 22a of the structure 20 together with the platform 22 itself.
  • the supplying apparatus 4 in turn also comprises a speed variator 5 having a motion input shaft 6 connected to a friction wheel 10 which is peripherally connected to the annular race 9 and an output shaft 7 which is connected by a belt drive 14 to a unit 3 for unwinding the film 8 from the reel 30 of the supplying apparatus 4.
  • the apparatus 4 can rotate together with the annular thrust bearing 23 relative to the platform 22 and to the fixed race 9 connected to it, when the thrust bearing 23 is made to rotate around the axis 22a of the structure 20, the wheel 10 rolls on the fixed race 9, causing the input shaft 6 and the output shaft 7 of the variator 5 to rotate, thus driving the belt drive 14 and finally the unwinding unit 3.
  • the reel 30 is therefore made to unwind the film 8 with an instantaneous supply speed which is mechanically correlated with the actual instantaneous speed of rotation of the thrust bearing 23 relative to the platform 22.
  • the wheel 10, the variator 5 and the drive 14 together form a preferred embodiment of more general means for mechanical synchronisation between the revolving speed of the supplying apparatus 4 and the supply or unwinding speed of the film 8.
  • the same synchronising means allow the supply motion energy to be derived from a single motor, represented by the gearmotor 24m which drives the apparatus 4 revolving movement around the product 2 to be packaged. This is particularly advantageous both in terms of reliable operation, and in terms of economical construction, because compared with the prior art there is no longer any need for the motor which drives the supplying of film 8 nor the means for management and control of the correlation of operation between the independent drive units of the thrust bearing 23 and of the unwinding apparatus 3.
  • the race 9, the wheel 10, the variator 5 and the drive 14 may also have detecting means for mechanically detecting the actual revolving speed of the apparatus 4 around the product 2.
  • Figure 2 and in more detail in Figure 3 show that the rolling connection is guaranteed by friction between the outside of the wheel 10 and the surface of the race 9. Therefore, the outside of the wheel 10 may advantageously have a covering shell 27 made of a suitable friction material. Moreover, to guarantee a correct rolling connection even in the presence of any race 9 out-of-roundness, for example due to machine 1 metal structural work construction faults, the operating apparatus 4 may advantageously have a support 12 for the variator 5 which comprises a monolithic plate 33 having two half-surfaces 28 and 29 converging with one another at an angle. A first half-surface 28 connects to itself the variator 5 casing 30.
  • a second half-surface 29 uses two supports 38 to support the variator 5 motion input shaft 6 which, more specifically is indirectly connected to a variator 5 intermediate shaft 31 by a belt drive 32.
  • the plate 33 is connected to the annular thrust bearing 23 by a cylindrical pin 13 with a vertical axis.
  • the pin is on the opposite side of the variator 5 to the wheel 10, and it is offset relative to an ideal joining line passing through the annular thrust bearing 23 axis of rotation 22a and through the variator 5 centre of mass.
  • the plate 33 connected in this way when subjected to the action of the centrifugal force generated by rotation of the apparatus 4 around the axis 22a, discharges on the wheel 10 a force which presses the wheel 10 against the race 9 and which in that way increases the certainty of having a pure rolling motion of the wheel 10 against the race 9, that is to say, of having a motion which is not affected by relative tangential sliding components of the wheel 10 relative to the fixed race 9, or in any case which is not affected by loss of contact, even accidental and instantaneous, between the wheel 10 and the race 9.
  • the plate 33 may also be connected at a second connecting point, this time located on the same side as the wheel 10, and having elastic compression means, in particular a spring 11 designed to firmly press the wheel 10 against the race 9 even in the absence of the rotating motion of the thrust bearing 23 or, in any case, even at moments when the slow speed of rotation of the thrust bearing 23 could trigger centrifugal forces whose intensity is not sufficient to guarantee permanent contact between the wheel 10 and the race 9.
  • FIG. 3 and Figure 4 together also show how the variator 5 has an adjusting mechanism, labelled 34 as a whole, which is equipped with a motor 35 that if necessary may be remote controlled. Activating the motor 35 allows very easy and rapid configuration of the variator 5 so as to provide — within its range of characteristic gear ratios the one most suited to the specific application for which the machine 1 is intended.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

L'invention porte sur une machine de conditionnement d'un produit (2) dans un matériau d'emballage. La machine forme l'emballage par film (8) de matériau d'emballage alimenté sous la forme d'une bande continue par un appareil (4) d'alimentation en film (8). L'appareil (8) peut se déplacer autour du produit (2) et effectuer une translation longitudinale par rapport au produit (2). La machine (1) est munie de moyens mécaniques (10, 5, 14) qui synchronisent la vitesse à laquelle le film (8) est alimenté et la vitesse à laquelle l'appareil (4) tourne autour du produit.
PCT/IT2008/000461 2007-07-13 2008-07-08 Machine de conditionnement à emballage par film WO2009011004A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES08790050.2T ES2462948T3 (es) 2007-07-13 2008-07-08 Máquina embaladora en la cual viene embalado un producto envolviéndolo con una película de material de embalaje
US12/668,981 US20100180555A1 (en) 2007-07-13 2008-07-08 Packaging machine in which a product is packaged by wrapping with a film of packaging material
EP08790050.2A EP2173621B1 (fr) 2007-07-13 2008-07-08 Machine de conditionnement a emballage par film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000035A ITRN20070035A1 (it) 2007-07-13 2007-07-13 Macchina per imballaggio in cui un prodotto e' imballato mediante fasciatura con una pellicola di materiale di imballaggio
ITRN2007000035 2007-07-13

Publications (1)

Publication Number Publication Date
WO2009011004A1 true WO2009011004A1 (fr) 2009-01-22

Family

ID=40030200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2008/000461 WO2009011004A1 (fr) 2007-07-13 2008-07-08 Machine de conditionnement à emballage par film

Country Status (5)

Country Link
US (1) US20100180555A1 (fr)
EP (1) EP2173621B1 (fr)
ES (1) ES2462948T3 (fr)
IT (1) ITRN20070035A1 (fr)
WO (1) WO2009011004A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9876581B2 (en) 2016-02-10 2018-01-23 Inphi Corporation Circuit for multi-path interference mitigation in an optical communication system
IT201900021981A1 (it) * 2019-11-22 2021-05-22 Stema Snc Di Tabarrin Stefano E Gnani Mauro Dispositivo per l’avvolgimento automatico di un materiale in foglio su prodotti in genere, particolarmente per la realizzazione di imballaggi

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811554A1 (fr) * 1996-05-06 1997-12-10 ROBOPAC SISTEMI S.r.l. Appareil d'emballage de charges palettisées avec une bande en matière plastique
WO2007071593A1 (fr) * 2005-12-22 2007-06-28 Atlanta Stretch S.P.A. Machine à anneau tournant servant à envelopper des charges palettisées avec du film étirable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR063700A0 (en) * 2000-10-09 2000-11-02 Safetech Pty Ltd A method and apparatus for wrapping a load

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0811554A1 (fr) * 1996-05-06 1997-12-10 ROBOPAC SISTEMI S.r.l. Appareil d'emballage de charges palettisées avec une bande en matière plastique
WO2007071593A1 (fr) * 2005-12-22 2007-06-28 Atlanta Stretch S.P.A. Machine à anneau tournant servant à envelopper des charges palettisées avec du film étirable

Also Published As

Publication number Publication date
US20100180555A1 (en) 2010-07-22
ITRN20070035A1 (it) 2007-10-12
EP2173621B1 (fr) 2014-02-26
EP2173621A1 (fr) 2010-04-14
ES2462948T3 (es) 2014-05-26

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