WO2012153248A1 - Self-propelled wrapping machine - Google Patents

Self-propelled wrapping machine Download PDF

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Publication number
WO2012153248A1
WO2012153248A1 PCT/IB2012/052237 IB2012052237W WO2012153248A1 WO 2012153248 A1 WO2012153248 A1 WO 2012153248A1 IB 2012052237 W IB2012052237 W IB 2012052237W WO 2012153248 A1 WO2012153248 A1 WO 2012153248A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
wrapping machine
emitting means
wrapping
machine according
Prior art date
Application number
PCT/IB2012/052237
Other languages
French (fr)
Inventor
Paolo Pecchenini
Original Assignee
Robopac S.P.A.
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 Robopac S.P.A. filed Critical Robopac S.P.A.
Publication of WO2012153248A1 publication Critical patent/WO2012153248A1/en

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

Definitions

  • the invention relates to a self-propelled wrapping machine, or robot, for wrapping products, in particular products arranged on a pallet or on several superimposed pallets, with a film of plastics.
  • Self-propelled wrapping machines or robots are known for wrapping palletised products, i.e. products that are arranged on a pallet or on several superimposed pallets, with a film of cold-stretchable plastics.
  • Such wrapping machines are generally used for wrapping products of non-standard dimensions, mainly in small production runs, and in narrow production areas in which static wrapping machines cannot be used.
  • Known self-propelled wrapping machines comprise a motorised self-propelled carriage and a plastics film reel supplying unit provided with an unwinding device and slidably supported on an upright associated with the self-propelled carriage.
  • the latter is provided at the front with a wheeled mechanical feeler that enables the self-propelled carriage to follow a profile of the palletised products to be wrapped.
  • the mechanical feeler is maintained in contact with the products by a spring during the entire wrapping and guides the movement of a directional wheel of the self-propelled carriage.
  • an operator places the self-propelled carriage near the pallet and activates the wrapping program.
  • the self-propelled carriage starts to rotate automatically around the pallet, following the profile thereof by means of the aforesaid mechanical feeler.
  • the wrapping machine may be hidden by the products from the view of an operator located near the products, for example positioned opposite the wrapping machines, and the arrival of the wrapping machine may thus not be perceptible by the operator.
  • An object of the invention is to improve self-propelled wrapping machines.
  • a further object is to provide a self-propelled wrapping machine that increases the safety of the operators located near the products being wrapped.
  • the invention provides a self-propelled wrapping machine as defined in independent claim 1.
  • said light emitting means by illuminating with a light beam said zone in front of said wrapping machine, enables an operator to be warned in advance of the arrival of said wrapping machine, even when the latter is hidden by said product, this enabling said operator to avoid a collision with said wrapping machine.
  • Figure 1 is a perspective view of a self-propelled wrapping machine according to the invention
  • Figure 2 is a partial front view of the wrapping machine in Figure 1 ;
  • FIG 3 is a front view of the wrapping machine in Figure 1 ;
  • Figure 4 is a side view of the wrapping machine in Figure 1 ;
  • Figure 5 is a plan view of the wrapping machine in Figure 1.
  • a self- propelled wrapping machine 1 also known as a wrapping robot, for wrapping with a film 3 of plastics, for example a film of stretchable plastics, products 2 positioned on pallets 12, arranged on a surface 9 or floor of a workplace 13.
  • the wrapping machine 1 comprises a self-propelled carriage 4 provided with a pair of directional wheels 14 to enable the self-propelled carriage 4 to change an advancing direction thereof .
  • the wrapping machine 1 further includes a wheeled mechanical feeler 15 of known type associated with the self-propelled carriage 4 to guide the latter during wrapping, along a wrapping path defined by a profile of the products 2 to be wrapped.
  • the wrapping machine 1 further comprises a supplying group 16 supplying the film 3 wound on a reel 11.
  • the supplying group 16 is movable vertically along an upright 17.
  • the wrapping machine 1 is further provided with light emitting means 5 arranged for emitting a light beam 6 to a zone 7 in front of the wrapping machine 1.
  • the light emitting means 5 is fixed to a front portion of the self-propelled carriage 4 and is supplied by a supply circuit, which is not shown, which is included in the wrapping machine 1, or the light emitting means 5 is supplied by batteries thereof.
  • the light emitting means 5 can comprise laser light emitting elements, or LED light emitting elements, or infrared light emitting elements or lamps or the like.
  • the light emitting means 5 is configured in such a manner as to generate a light spot 18 having, for example, a circular or punctiform or linear shape. Further, the light emitting means 5 is configured in such a manner as to emit an intermittent light beam 6.
  • the light emitting means is configured in such a manner as to emit a continuous light beam.
  • the light emitting means 5 is configured in such a manner as to emit selectively light beams 6 of at least two different colours, for example by providing light emitting elements of a different colours, or by using coloured lenses, according to the colour of the surface 9 to be illuminated on which the wrapping machine 1 is movable.
  • the light emitting means 5 is fixed to the self-propelled carriage 4 in such a manner as to illuminate a zone 7 of the surface 9 in front of the wrapping machine 1 and placed at a distance S ( Figure 5) from the latter defined by the formula:
  • This distance S enables the operator 10, located near the product 2, to be warned 1.33 m in advance of the presence of the wrapping machine 1 and to avoid collision with the latter easily .
  • the light emitting means 5 can comprise lens means that is not shown to focus and/or orient the light beam 6.
  • the light emitting means 5 comprises two pairs, suitably spaced apart from one another, of light emitting elements 8.
  • Such pairs of light emitting elements 8, which are drivable selectively, can each emit a continuous or intermittent light beam 6 of a different colour or of the same colour.
  • the light emitting means comprises a single light emitting element .
  • a coloured lens can also be provided, for example a bicoloured lens, cooperating with the light- emitting element to emit light beams of a different colours.
  • the light emitting means comprises a pair of light emitting elements that are suitably spaced apart from one another.
  • Such light emitting elements which are drivable selectively, can each emit a continuous or intermittent light beam of a different colour or of the same colour.
  • the light emitting means comprises three light emitting elements arranged in such a manner as to define the vertices of a triangle.
  • Such light emitting elements which are selectively drivable, can each emit a continuous or intermittent light beam, of a different colour, or of the same colour.
  • the operator 10 positions the self-propelled carriage 4 near the pallet 12 and activates the wrapping program, which automatically starts up the light emitting means 5.
  • the self-propelled carriage 4 starts to rotate automatically around the pallet 12, following the profile thereof by means of the mechanical feeler 15 and the light emitting means 5, illuminating with the light beam 6 the zone 7 in front of the wrapping machine 1, enables the operator 10 to be warned in advance of the arrival of the operating machine 1, even when the latter is hidden by the products 2 ( Figures 4 and 5) , this enabling the operator 10 to avoid the collision with the wrapping machine 1 and making the wrapping machine 1 safer than known wrapping machines .
  • the light emitting means is configured in such a manner as to emit a light beam that is orientable along a wrapping path of the product 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Catching Or Destruction (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

A self-propelled wrapping machine (1) is movable around a product for wrapping the product with a film of plastics and comprises light emitters (5) for emitting a light beam (6) to a zone in front of the wrapping machine so as to warn an operator located near the product of the arrival of the wrapping machine.

Description

Self -propelled wrapping machine
The invention relates to a self-propelled wrapping machine, or robot, for wrapping products, in particular products arranged on a pallet or on several superimposed pallets, with a film of plastics.
Self-propelled wrapping machines or robots are known for wrapping palletised products, i.e. products that are arranged on a pallet or on several superimposed pallets, with a film of cold-stretchable plastics.
Such wrapping machines are generally used for wrapping products of non-standard dimensions, mainly in small production runs, and in narrow production areas in which static wrapping machines cannot be used.
Known self-propelled wrapping machines comprise a motorised self-propelled carriage and a plastics film reel supplying unit provided with an unwinding device and slidably supported on an upright associated with the self-propelled carriage. The latter is provided at the front with a wheeled mechanical feeler that enables the self-propelled carriage to follow a profile of the palletised products to be wrapped.
More precisely, the mechanical feeler is maintained in contact with the products by a spring during the entire wrapping and guides the movement of a directional wheel of the self-propelled carriage.
In use, for wrapping products placed on a pallet, an operator places the self-propelled carriage near the pallet and activates the wrapping program.
At this point, the self-propelled carriage starts to rotate automatically around the pallet, following the profile thereof by means of the aforesaid mechanical feeler.
The combination of the motion of the self-propelled carriage around the pallet and of the vertical motion of the reel achieves helical wrapping of the products.
During certain wrapping steps, the wrapping machine may be hidden by the products from the view of an operator located near the products, for example positioned opposite the wrapping machines, and the arrival of the wrapping machine may thus not be perceptible by the operator.
This increases the risk of collision of the operator with such wrapping machines and consequently reduces the safety of the operators which are near the products being wrapped.
An object of the invention is to improve self-propelled wrapping machines.
A further object is to provide a self-propelled wrapping machine that increases the safety of the operators located near the products being wrapped.
The invention provides a self-propelled wrapping machine as defined in independent claim 1.
Owing to the invention, it is possible to provide a self- propelled wrapping machine that is safer than known self- propelled wrapping machines.
In fact, said light emitting means, by illuminating with a light beam said zone in front of said wrapping machine, enables an operator to be warned in advance of the arrival of said wrapping machine, even when the latter is hidden by said product, this enabling said operator to avoid a collision with said wrapping machine.
The invention can be better understood and implemented with reference to the attached drawings that illustrate an embodiment thereof by way of non- limiting example, in which: Figure 1 is a perspective view of a self-propelled wrapping machine according to the invention;
Figure 2 is a partial front view of the wrapping machine in Figure 1 ;
Figure 3 is a front view of the wrapping machine in Figure 1 ; Figure 4 is a side view of the wrapping machine in Figure 1 ; Figure 5 is a plan view of the wrapping machine in Figure 1. With reference to Figures 1 to 5, there is shown a self- propelled wrapping machine 1, also known as a wrapping robot, for wrapping with a film 3 of plastics, for example a film of stretchable plastics, products 2 positioned on pallets 12, arranged on a surface 9 or floor of a workplace 13.- The wrapping machine 1 comprises a self-propelled carriage 4 provided with a pair of directional wheels 14 to enable the self-propelled carriage 4 to change an advancing direction thereof .
The wrapping machine 1 further includes a wheeled mechanical feeler 15 of known type associated with the self-propelled carriage 4 to guide the latter during wrapping, along a wrapping path defined by a profile of the products 2 to be wrapped.
In particular, the mechanical feeler 15 is connected to the aforesaid directional wheel 14 to enable the self-propelled carriage 4 to change the advancing direction thereof according to the profile of the products 2 to be wrapped. The wrapping machine 1 further comprises a supplying group 16 supplying the film 3 wound on a reel 11.
The supplying group 16 is movable vertically along an upright 17.
In this manner, in use, the combination of the motion of the self-propelled carriage 4 around the pallet 12 and of the vertical motion of the reel 11 achieves helical wrapping of the products 2.
The wrapping machine 1 is further provided with light emitting means 5 arranged for emitting a light beam 6 to a zone 7 in front of the wrapping machine 1.
The light emitting means 5 is fixed to a front portion of the self-propelled carriage 4 and is supplied by a supply circuit, which is not shown, which is included in the wrapping machine 1, or the light emitting means 5 is supplied by batteries thereof.
The light emitting means 5 can comprise laser light emitting elements, or LED light emitting elements, or infrared light emitting elements or lamps or the like.
Also, the light emitting means 5 is configured in such a manner as to generate a light spot 18 having, for example, a circular or punctiform or linear shape. Further, the light emitting means 5 is configured in such a manner as to emit an intermittent light beam 6.
This not only reduces the energy required for the operation thereof but also enables heat to be dissipated, in particular in the case of LED light emitting elements.
In one embodiment of the invention, which is not shown, the light emitting means is configured in such a manner as to emit a continuous light beam.
Further, the light emitting means 5 is configured in such a manner as to emit selectively light beams 6 of at least two different colours, for example by providing light emitting elements of a different colours, or by using coloured lenses, according to the colour of the surface 9 to be illuminated on which the wrapping machine 1 is movable.
In particular, the light emitting means 5 is fixed to the self-propelled carriage 4 in such a manner as to illuminate a zone 7 of the surface 9 in front of the wrapping machine 1 and placed at a distance S (Figure 5) from the latter defined by the formula:
S=v*t
where
S = distance (m) ;
v = speed (m/s) of the wrapping machine 1;
t = reaction time (s) of an operator 10.
In the case of a maximum speed of the wrapping machine 1 equal to 1.33 m/s and a reaction time of the operator 10 equal to 1 s, a distance S equal to 1.33 m is obtained.
This distance S enables the operator 10, located near the product 2, to be warned 1.33 m in advance of the presence of the wrapping machine 1 and to avoid collision with the latter easily .
Also, the light emitting means 5 can comprise lens means that is not shown to focus and/or orient the light beam 6.
In Figures 1 to 5, there is shown one embodiment of the invention in which the light emitting means 5 comprises two pairs, suitably spaced apart from one another, of light emitting elements 8.
Such pairs of light emitting elements 8, which are drivable selectively, can each emit a continuous or intermittent light beam 6 of a different colour or of the same colour.
In one embodiment of the invention, which is not shown, the light emitting means comprises a single light emitting element .
In such an embodiment a coloured lens can also be provided, for example a bicoloured lens, cooperating with the light- emitting element to emit light beams of a different colours. In a further embodiment of the invention, which is not shown, the light emitting means comprises a pair of light emitting elements that are suitably spaced apart from one another.
Such light emitting elements, which are drivable selectively, can each emit a continuous or intermittent light beam of a different colour or of the same colour.
In a still another embodiment of the invention, which is not shown, the light emitting means comprises three light emitting elements arranged in such a manner as to define the vertices of a triangle.
Such light emitting elements, which are selectively drivable, can each emit a continuous or intermittent light beam, of a different colour, or of the same colour.
In use, in order for wrapping the products 2 placed on the pallet 12, the operator 10 positions the self-propelled carriage 4 near the pallet 12 and activates the wrapping program, which automatically starts up the light emitting means 5.
At this point, the self-propelled carriage 4 starts to rotate automatically around the pallet 12, following the profile thereof by means of the mechanical feeler 15 and the light emitting means 5, illuminating with the light beam 6 the zone 7 in front of the wrapping machine 1, enables the operator 10 to be warned in advance of the arrival of the operating machine 1, even when the latter is hidden by the products 2 (Figures 4 and 5) , this enabling the operator 10 to avoid the collision with the wrapping machine 1 and making the wrapping machine 1 safer than known wrapping machines .
In one embodiment of the invention, which is not shown, the light emitting means is configured in such a manner as to emit a light beam that is orientable along a wrapping path of the product 2.

Claims

1. Self-propelled wrapping machine that is movable around a product (2) for wrapping said product (2) with a film (3) of plastics, characterised in that it comprises a safety device including light-emitting means (5) for emitting a light beam (6) to a zone (7) in front of said wrapping machine (1) so as to warn an operator (10) located near said product (2) of the arrival of said wrapping machine (1) .
2. Wrapping machine according to claim 1, wherein said light-emitting means (5) is configured in such a manner as to emit an intermittent light beam (6) .
3. Wrapping machine according to claim 1, or 2, wherein said light-emitting means (5) is configured in such a manner as to emit selectively light beams (6) of at least two different colours.
4. Wrapping machine according to any preceding claim, wherein said light-emitting means (5) is a light- emitting laser means.
5. Wrapping machine according to any one of claims 1 to 4, wherein said light-emitting means (5) is LED light- emitting means.
6. Wrapping machine according to any preceding claim, wherein said light-emitting means (5) is configured in such a manner as to illuminate a zone (7) in front of said wrapping machine (1) located at a distance (S) from said wrapping machine (1) defined by the formula: S=v*t
where
s = distance (m) ;
v = speed (m/s) of said wrapping machine (1) ;
t = reaction time (s) of said operator (10) .
7. Wrapping machine according to any preceding claim, wherein said light-emitting means (5) is configured in such a way as to generate a luminous punctiform or linear or shaped spot.
8. Wrapping machine according to any preceding claim, wherein said light-emitting means (5) comprises lens means for focusing and/or orienting said light beam (6) .
9. Wrapping machine according to any preceding claim, wherein said light-emitting means (5) is configured in such a manner as to emit a light beam (6) that is orientable along a wrapping path of said product (2) .
10. Wrapping machine according to any preceding claim, wherein said light-emitting means (5) comprises a single light-emitting element (8) , or a pair of light- emitting elements (8) , or two pairs of light-emitting elements (8) , or three light-emitting elements (8) arranged in such a manner as to define the vertices of a triangle .
11. Wrapping machine according to any preceding claim, wherein said light-emitting means (5) is mounted in front of a self-propelled carriage (4) included in said machine (1) .
12. Wrapping machine according to any preceding claim, wherein said light-emitting means (5) is configured in such a manner as to automatically start as an automatic wrapping program of said machine (1) is started.
PCT/IB2012/052237 2011-05-06 2012-05-04 Self-propelled wrapping machine WO2012153248A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO2011A000100 2011-05-06
IT000100A ITMO20110100A1 (en) 2011-05-06 2011-05-06 SELF PROPELLED WRAPPING MACHINE

Publications (1)

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WO2012153248A1 true WO2012153248A1 (en) 2012-11-15

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WO (1) WO2012153248A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103708049A (en) * 2013-12-27 2014-04-09 东莞市旭田包装机械有限公司 Automatic walking winding machine
CN104354889A (en) * 2014-10-28 2015-02-18 杭州永创智能设备股份有限公司 Walking type winding machine
WO2017025870A1 (en) * 2015-08-07 2017-02-16 Noxon S.P.A. Self propelled wrapping machine, system and method
EP3214001A4 (en) * 2014-10-28 2018-04-11 Hangzhou Youngsun Intelligent Equipment Co., Ltd. Novel walking type winding machine
IT201800007598A1 (en) * 2018-07-27 2020-01-27 Atlanta Stretch Spa METHOD AND EQUIPMENT FOR WINDING PRODUCTS WITH A STRETCH MATERIAL FILM
CN113474257A (en) * 2019-02-27 2021-10-01 罗宝莫股份公司 Self-propelled packaging machine and packaging method
IT202100015509A1 (en) 2021-06-14 2022-12-14 Atlanta Stretch S P A EQUIPMENT FOR THE AUTOMATIC WRAPPING OF A LOAD WITH A FILM OF STRETCH MATERIAL

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5875617A (en) * 1997-10-24 1999-03-02 Illinois Tool Works Inc. Overhead rotating type stretch film wrapping machine support beam structure
WO2009016464A1 (en) * 2007-07-31 2009-02-05 Robopac S.A. Control device
FR2948338A1 (en) * 2009-07-22 2011-01-28 Deo Wrap Service Rotating arm stopping device for stretch-wrapping machine of loaded pallet, has electric unit for driving rotating arm to cut electric supply when detection assemblies are present in path

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5875617A (en) * 1997-10-24 1999-03-02 Illinois Tool Works Inc. Overhead rotating type stretch film wrapping machine support beam structure
WO2009016464A1 (en) * 2007-07-31 2009-02-05 Robopac S.A. Control device
FR2948338A1 (en) * 2009-07-22 2011-01-28 Deo Wrap Service Rotating arm stopping device for stretch-wrapping machine of loaded pallet, has electric unit for driving rotating arm to cut electric supply when detection assemblies are present in path

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103708049A (en) * 2013-12-27 2014-04-09 东莞市旭田包装机械有限公司 Automatic walking winding machine
CN104354889A (en) * 2014-10-28 2015-02-18 杭州永创智能设备股份有限公司 Walking type winding machine
EP3214001A4 (en) * 2014-10-28 2018-04-11 Hangzhou Youngsun Intelligent Equipment Co., Ltd. Novel walking type winding machine
WO2017025870A1 (en) * 2015-08-07 2017-02-16 Noxon S.P.A. Self propelled wrapping machine, system and method
US10689138B2 (en) 2015-08-07 2020-06-23 Noxon S.P.A. Self-propelled wrapping machine and wrapping system and method
US11492154B2 (en) 2015-08-07 2022-11-08 Noxon S.P.A. Self-propelled wrapping machine and wrapping system and method
IT201800007598A1 (en) * 2018-07-27 2020-01-27 Atlanta Stretch Spa METHOD AND EQUIPMENT FOR WINDING PRODUCTS WITH A STRETCH MATERIAL FILM
WO2020021584A1 (en) * 2018-07-27 2020-01-30 Atlanta Stretch S.P.A. Method and apparatus for wrapping a load with a film of extensible material
CN113474257A (en) * 2019-02-27 2021-10-01 罗宝莫股份公司 Self-propelled packaging machine and packaging method
CN113474257B (en) * 2019-02-27 2023-02-28 罗宝莫股份公司 Self-propelled packaging machine and packaging method
US11952153B2 (en) 2019-02-27 2024-04-09 Robopac S.P.A. Self-propelled wrapping machine and method of wrapping
IT202100015509A1 (en) 2021-06-14 2022-12-14 Atlanta Stretch S P A EQUIPMENT FOR THE AUTOMATIC WRAPPING OF A LOAD WITH A FILM OF STRETCH MATERIAL

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