EP2448822B1 - Apparatus for wrapping products with a film made of extensible material - Google Patents
Apparatus for wrapping products with a film made of extensible material Download PDFInfo
- Publication number
- EP2448822B1 EP2448822B1 EP10734325.3A EP10734325A EP2448822B1 EP 2448822 B1 EP2448822 B1 EP 2448822B1 EP 10734325 A EP10734325 A EP 10734325A EP 2448822 B1 EP2448822 B1 EP 2448822B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spool
- supply unit
- products
- wrapping
- extensible material
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 title claims description 25
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
- 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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/58—Applying two or more wrappers, e.g. in succession
- B65B11/585—Applying two or more wrappers, e.g. in succession to stacked articles, e.g. pallettised loads
-
- 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
- B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
- B65B2210/20—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 arm
Definitions
- the present invention regards an apparatus for wrapping products with a film made of extensible material.
- the products to be wrapped are fed to a rotating table which is suitable to be put in rotation, according to a vertical axis, with respect to the unit for supplying the extensible film, borne by a carriage which in the wrapping phase is mobile along a support column.
- the rotation of the rotating table determines the wrapping of the extensible film along the lateral surface of the products, while the axial shift of the carriage carrying the spool causes the production of a spiral development of such a wrapping.
- Such an apparatus comprises a supply unit carrying a spool of film made of extensible material, a rotation device for producing a relative rotation of the supply unit with respect to the products to be wrapped according to the axis of the aforesaid spool.
- the unit for supplying the extensible film is borne by an arm rotating about the products to be wrapped, which have a fixed position during the wrapping phase.
- the use of an apparatus of this type is preferable for example for wrapping unstable products, with the scope of avoiding the risk of fall during the wrapping phases.
- the supply unit carrying the spool of film made of extensible material is borne by a ring rotating according to a vertical or alternatively horizontal axis on a fixed structure, at the centre of which are arranged the products to be wrapped.
- the rotating ring is constrained to a frame mobile according to a direction axial to the same rotating ring.
- the task of the present invention is that of solving the aforementioned problems, devising an apparatus which enables to operate in an optimal manner the wrapping of products with a film made of extensible material, in particular achieving a high productivity.
- a further object of the present invention is that of providing an apparatus that allows to operate in an easy way the operations of gripping, cutting and sealing the extensible film.
- Another object of the present invention is that of providing an apparatus having a simple conception, a securely reliable functioning and versatile use, as well as relatively economic cost.
- the apparatus for wrapping products with a film made of extensible material, of the polyethylene type is indicated in its entirety with 1.
- the apparatus 1 has a bearing structure 2 shaping a kind of portal.
- At the base of such a bearing structure 2 there are suitable to be prearranged the products to be wrapped, preferably arranged on a pallet support, through known feeding means not represented for simplicity, such as for example a suitably motorised roller conveyor.
- a rotation device 3 provided with a motor member 4 which is suitable to put in rotation, according to a vertical axis, a rotating arm 5.
- the rotating arm 5 supports at one end a column 6 that extends vertically downwards.
- a carriage 8 which constitutes part of a shifting device 9 equipped with a relative motor member 10, mounted at the top of the same column 6.
- the motor member 10 is suitable to control the shift of the carriage 8 along the column 6 through known means for transmitting the motion arranged inside the same column 6.
- the carriage 8 of the shifting device 9 supports overhang a supply unit 11 carrying a spool 12 of film made of extensible material.
- the spool 12 is carried rotating, according to a vertical axis, by a support 13 of the supply unit 11, having a box shape, which is integral to the carriage 8.
- the apparatus comprises an auxiliary supply unit 21 carrying a second spool 22 of the film made of extensible material.
- the auxiliary supply unit 21 is associated with the supply unit 11 on the shifting device 9 and is axially mobile with respect to the same supply unit 11. More particularly, the second spool 22 is borne rotating, according to a vertical axis, by a support 23, having a box shape, which is integral to a second carriage 24 guided slidingly along the column 6 through the cited guide means.
- the second carriage 24 is mobile with respect to the carriage 8 of the supply unit 11 through the interposition of suitable actuators 25.
- such actuators 25 are constituted by a compensator articulation mechanism actuated by a suitable motor member. Nevertheless it is possible to provide for the use of different actuator means, for example of the pneumatic type, functionally equivalent.
- the auxiliary supply unit 21 is axially mobile with respect to the supply unit 11 between a first operating position wherein the second spool 22 is basically placed beside the first spool 12 along the column 6 and a second operating position wherein the same second spool 22 is axially staggered with respect to the spool 12, in a way as to increase, in the wrapping phase, the wideness of the band of extensible material developed around the products.
- the apparatus is provided with a unit 30 for seizing, cutting and sealing the extensible film, of a known type in the specific sector of use and therefore not described in major detail.
- the shifting device 9 carrying the supply units 11, 21, in the predetermined position for the beginning of the operating cycle, as a function of the dimensions and/or of the shape of the load to be wrapped, for example a group of products arranged in an ordered manner on a pallet.
- the products to be wrapped are fed in the wrapping post, at the centre of the bearing structure 2, where they are suitable to be associated with a border of the plastic film that unwinds from the spools 13, 23.
- the rotation of the rotating arm 5, actuated by the motor member 4 of the rotation device 3 determines the wrapping of the extensible film along the lateral surface of the products; the simultaneous axial shift of the carriages 8, 24 carrying the spools 12, 22 causes the production of a spiral development of such a wrapping.
- the auxiliary supply unit 21 is displaced in the second operating position wherein the second spool 22 is axially staggered with respect to the spool 12, as can be seen in fig. 2 .
- the wideness of the band of extensible material developed around the products is substantially doubled.
- the surface of the products covered by the extensible film, and accordingly the production speed of the apparatus are substantially doubled.
- the axial displacement of the second spool 22 of the auxiliary supply unit 21 with respect to the first spool 12 is suitably operated at the beginning of every operating cycle. Nevertheless it is possible to provide for it to take place also in a successive moment.
- the second spool 22 is brought back in the initial operating position, substantially placed beside the first spool 12 along the column 6, so as to enable to operate seizing, cutting and sealing of the extensible film by means of a unique device 30.
- the apparatus in hand therefore attains the scope of operating in an optimal way the wrapping of products with a film made of extensible material, and in particular reaching a high productivity.
- the embodiment of the invention may vary depending on the requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Packaging Of Machine Parts And Wound Products (AREA)
Description
- The present invention regards an apparatus for wrapping products with a film made of extensible material.
- Nowadays it is known the exigency of wrapping groups of products, usually arranged on a pallet, with a film made of extensible material of the type of the polyethylene. Apparatuses able to operate in an automatic or semiautomatic way the wrapping of products with the cited film made of extensible material have thus been developed. Such apparatuses generally provide for a supply unit carrying a spool of film made of extensible material which is borne in relative rotation with respect to the products to be wrapped.
- According to a known solution, the products to be wrapped are fed to a rotating table which is suitable to be put in rotation, according to a vertical axis, with respect to the unit for supplying the extensible film, borne by a carriage which in the wrapping phase is mobile along a support column. The rotation of the rotating table determines the wrapping of the extensible film along the lateral surface of the products, while the axial shift of the carriage carrying the spool causes the production of a spiral development of such a wrapping.
- An apparatus of this type is illustrated as an example in patent
EP 1083126 . Such an apparatus comprises a supply unit carrying a spool of film made of extensible material, a rotation device for producing a relative rotation of the supply unit with respect to the products to be wrapped according to the axis of the aforesaid spool. - In a different known solution, the unit for supplying the extensible film is borne by an arm rotating about the products to be wrapped, which have a fixed position during the wrapping phase. The use of an apparatus of this type is preferable for example for wrapping unstable products, with the scope of avoiding the risk of fall during the wrapping phases.
- According to a further known solution, the supply unit carrying the spool of film made of extensible material is borne by a ring rotating according to a vertical or alternatively horizontal axis on a fixed structure, at the centre of which are arranged the products to be wrapped. The rotating ring is constrained to a frame mobile according to a direction axial to the same rotating ring. An apparatus of this kind is illustrated for example in patent application
EP 1963188 . - A further known solution is disposed in
US 2008/0209859 A1 . The preamble ofclaim 1 is based on this prior art. - The apparatuses which are known nowadays do not fully satisfy the exigencies of the users, particularly regarding the limited operating speed produced in the wrapping phase. As a consequence of this, such apparatuses generally have a productivity which is not adapted to the possibilities of the most evolved lines for packaging the products.
- The task of the present invention is that of solving the aforementioned problems, devising an apparatus which enables to operate in an optimal manner the wrapping of products with a film made of extensible material, in particular achieving a high productivity.
- Within such a task, a further object of the present invention is that of providing an apparatus that allows to operate in an easy way the operations of gripping, cutting and sealing the extensible film.
- Another object of the present invention is that of providing an apparatus having a simple conception, a securely reliable functioning and versatile use, as well as relatively economic cost.
- The above mentioned scopes are attained, according to the present invention, by the apparatus for wrapping products with a film made of extensible material according to the attached claims.
- Details of the invention shall be more apparent from the detailed description of a preferred embodiment of the apparatus for wrapping products with a film made of extensible material according to the invention, illustrated for indicative purposes in the attached drawings, wherein:
-
figure 1 shows a perspective view of the apparatus for wrapping products with a film made of extensible material; -
figure 2 shows the same perspective view of the apparatus, in a different operating phase; -
figure 3 shows a perspective view thereof from a different angle; -
figure 4 shows a detail view of an unit for supplying the extensible film used in the apparatus in hand; -
figures 5 and 6 respectively show a front view and a top view of the apparatus. - With particular reference to such figures, the apparatus for wrapping products with a film made of extensible material, of the polyethylene type, is indicated in its entirety with 1. The
apparatus 1 has abearing structure 2 shaping a kind of portal. At the base of such abearing structure 2 there are suitable to be prearranged the products to be wrapped, preferably arranged on a pallet support, through known feeding means not represented for simplicity, such as for example a suitably motorised roller conveyor. - At the top of the
bearing structure 2, in a substantially central position, there is arranged arotation device 3 provided with amotor member 4 which is suitable to put in rotation, according to a vertical axis, a rotatingarm 5. The rotatingarm 5 supports at one end acolumn 6 that extends vertically downwards. Along guide means 7 shaped by thecolumn 6 there is guided slidingly acarriage 8 which constitutes part of a shiftingdevice 9 equipped with arelative motor member 10, mounted at the top of thesame column 6. Themotor member 10 is suitable to control the shift of thecarriage 8 along thecolumn 6 through known means for transmitting the motion arranged inside thesame column 6. - The
carriage 8 of the shiftingdevice 9 supports overhang asupply unit 11 carrying aspool 12 of film made of extensible material. Thespool 12 is carried rotating, according to a vertical axis, by asupport 13 of thesupply unit 11, having a box shape, which is integral to thecarriage 8. - According to the present invention, the apparatus comprises an
auxiliary supply unit 21 carrying asecond spool 22 of the film made of extensible material. Theauxiliary supply unit 21 is associated with thesupply unit 11 on the shiftingdevice 9 and is axially mobile with respect to thesame supply unit 11. More particularly, thesecond spool 22 is borne rotating, according to a vertical axis, by asupport 23, having a box shape, which is integral to asecond carriage 24 guided slidingly along thecolumn 6 through the cited guide means. Thesecond carriage 24 is mobile with respect to thecarriage 8 of thesupply unit 11 through the interposition ofsuitable actuators 25. In the illustrated case,such actuators 25 are constituted by a compensator articulation mechanism actuated by a suitable motor member. Nevertheless it is possible to provide for the use of different actuator means, for example of the pneumatic type, functionally equivalent. - The
auxiliary supply unit 21 is axially mobile with respect to thesupply unit 11 between a first operating position wherein thesecond spool 22 is basically placed beside thefirst spool 12 along thecolumn 6 and a second operating position wherein the samesecond spool 22 is axially staggered with respect to thespool 12, in a way as to increase, in the wrapping phase, the wideness of the band of extensible material developed around the products. - Moreover, the apparatus is provided with a
unit 30 for seizing, cutting and sealing the extensible film, of a known type in the specific sector of use and therefore not described in major detail. - The functioning of the apparatus for wrapping products with a film made of extensible material according to the invention turns out to be easy to understand from the preceding description.
- Firstly, it is provided to prearrange the shifting
device 9, carrying thesupply units bearing structure 2, where they are suitable to be associated with a border of the plastic film that unwinds from thespools arm 5, actuated by themotor member 4 of therotation device 3 determines the wrapping of the extensible film along the lateral surface of the products; the simultaneous axial shift of thecarriages spools - According to the present invention, during the cited wrapping phase the
auxiliary supply unit 21 is displaced in the second operating position wherein thesecond spool 22 is axially staggered with respect to thespool 12, as can be seen infig. 2 . In such a configuration the wideness of the band of extensible material developed around the products is substantially doubled. In other words, at every turn of the rotatingarm 5 the surface of the products covered by the extensible film, and accordingly the production speed of the apparatus, are substantially doubled. - The axial displacement of the
second spool 22 of theauxiliary supply unit 21 with respect to thefirst spool 12 is suitably operated at the beginning of every operating cycle. Nevertheless it is possible to provide for it to take place also in a successive moment. - At the end of the products wrapping phase, the
second spool 22 is brought back in the initial operating position, substantially placed beside thefirst spool 12 along thecolumn 6, so as to enable to operate seizing, cutting and sealing of the extensible film by means of aunique device 30. - The apparatus in hand therefore attains the scope of operating in an optimal way the wrapping of products with a film made of extensible material, and in particular reaching a high productivity.
- Such a result is obtained essentially thanks to the inventive idea of providing an auxiliary supply unit carrying a second spool of extensible film which is axially mobile with respect to a first spool of extensible film, in a way as to considerably increase, in the wrapping phase, the wideness of the band of extensible material developed around the products and accordingly decrease in proportion the time necessary to complete the wrapping of the products.
- It is to note that previously, for a strictly exemplifying purpose, reference was made to an apparatus of the type having a rotating arm. But the same inventive concept may be obviously used in apparatuses for wrapping products with an extensible film of a different type, in particular with a rotating table or with a rotating ring.
- In practice, the embodiment of the invention, the materials used, as well as the shape and dimensions, may vary depending on the requirements.
- Should the technical characteristics mentioned in each claim be followed by reference signs, such reference signs were included strictly with the aim of enhancing the understanding the claims and hence they shall not be deemed restrictive in any manner whatsoever on the scope of each element identified for exemplifying purposes by such reference signs.
Claims (5)
- Apparatus for wrapping products with a film made of extensible material, comprising a first supply unit (11) having a first spool (12) of extensible material film, a rotation device (3) suitable to produce a relative rotation of said first supply unit (11) around the products to wrap, a shifting device (9) suitable to shift said first supply unit (11) parallel to the axis of said spool (12), with respect to the said products to wrap, and an auxiliary supply unit (21) having a second spool (22) of extensible material film, associated with said first supply unit (11) on said shifting device (9) and axially movable with respect to said first supply unit (11);
characterised in that said auxiliary supply unit (21) is axially movable with respect to said first supply unit (11) between a first operating position wherein said second spool (22) is placed at the same level adjacent said first spool (12) on said shifting device (9), and a second operating position wherein said second spool (22) is axially staggered with respect to said first spool (12), in order to increase, during the wrapping phase, the surface of said products covered by the films of extensible material. - Apparatus according to claim 1, characterised in that said first spool (12) and said second spool (22) are respectively borne by a first carriage (8) and by a second carriage (24) slidingly guided on a column (6) of said shifting device (9).
- Apparatus according to claim 2, characterised in that said second carriage (24) of the auxiliary supply unit (21) is movable with respect to said first carriage (8) through the interposition of suitable actuators (25).
- Apparatus according to claim 2, characterised in that said column (6) of said shifting device (9) is borne by a rotating arm (5) of said rotation device (3).
- Apparatus according to claim 1, characterised in that it comprises a unit (30) for seizing, cutting and sealing said extensible material film, suitable to be operated at the end of the said phase of wrapping the products, after the return of said second spool (22) in the said operating position in which said second spool (22) is basically placed at the same level adjacent said first spool (12) on said shifting device (9).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO2009A000424A IT1394828B1 (en) | 2009-07-01 | 2009-07-01 | EQUIPMENT FOR THE WINDING OF PRODUCTS WITH FILM OF EXTENSIBLE MATERIAL |
PCT/IB2010/052992 WO2011001388A1 (en) | 2009-07-01 | 2010-06-30 | Apparatus for wrapping products with a film made of extensible material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2448822A1 EP2448822A1 (en) | 2012-05-09 |
EP2448822B1 true EP2448822B1 (en) | 2014-03-12 |
Family
ID=42062247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10734325.3A Active EP2448822B1 (en) | 2009-07-01 | 2010-06-30 | Apparatus for wrapping products with a film made of extensible material |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2448822B1 (en) |
ES (1) | ES2458791T3 (en) |
IT (1) | IT1394828B1 (en) |
WO (1) | WO2011001388A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201800010782A1 (en) * | 2018-12-04 | 2020-06-04 | Aetna Group Spa | WRAPPING MACHINE |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1395323B1 (en) | 2009-08-28 | 2012-09-14 | Gd Spa | EQUIPMENT FOR FEEDING TAPE MATERIAL IN PACKAGING MACHINES |
CN108275296A (en) * | 2018-01-30 | 2018-07-13 | 珠海横琴新区西穆容器有限公司 | Automatic wrapping machine |
IT201900008298A1 (en) * | 2019-06-06 | 2020-12-06 | Aetna Group Spa | METHOD AND APPARATUS FOR WRAPPING |
EP3891074B1 (en) * | 2018-12-04 | 2023-03-01 | AETNA GROUP S.p.A. | Method and apparatus for wrapping a load and wrapping machine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3339337A1 (en) * | 1983-10-29 | 1985-05-15 | B. Hagemann & Co, 4430 Steinfurt | METHOD AND DEVICE FOR ENHANCING PACKAGE PIECES OR CONTAINERS IN SHRINK FILM |
US6370839B1 (en) | 1999-08-10 | 2002-04-16 | Sekisui Jushi Kabushiki Kaisha | Stretch wrapping machine |
FR2858295B1 (en) * | 2003-07-31 | 2006-02-03 | Itw Mima Systems | BANDEROLEUSE AND BANDEROLAGE METHOD IMPLEMENTED BY THE BANDEROLEUSE |
FR2872487B1 (en) * | 2004-07-02 | 2007-02-09 | Finzy Sylvie | SIMULTANEOUS BANDERING DEVICE OF THE SIDE FACES AND A FACE OF END OF A PALLETIZED LOAD |
ITBO20050780A1 (en) | 2005-12-22 | 2007-06-23 | Atlanta Stretch S P A | RING MACHINE, WITH VERTICAL OR HORIZONTAL AXIS, FOR THE WRAPPING WITH EXTENSIBLE FILM AND MIXED BY USUAL PACKED LOADS. |
US7621107B2 (en) * | 2007-01-02 | 2009-11-24 | Vanderheiden Patrick J | Wrapping cart machine and method of wrapping |
-
2009
- 2009-07-01 IT ITBO2009A000424A patent/IT1394828B1/en active
-
2010
- 2010-06-30 EP EP10734325.3A patent/EP2448822B1/en active Active
- 2010-06-30 WO PCT/IB2010/052992 patent/WO2011001388A1/en active Application Filing
- 2010-06-30 ES ES10734325.3T patent/ES2458791T3/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201800010782A1 (en) * | 2018-12-04 | 2020-06-04 | Aetna Group Spa | WRAPPING MACHINE |
Also Published As
Publication number | Publication date |
---|---|
ITBO20090424A1 (en) | 2011-01-02 |
IT1394828B1 (en) | 2012-07-20 |
ES2458791T3 (en) | 2014-05-07 |
WO2011001388A1 (en) | 2011-01-06 |
EP2448822A1 (en) | 2012-05-09 |
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