US20110088359A1 - Method and device for wrapping products - Google Patents

Method and device for wrapping products Download PDF

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Publication number
US20110088359A1
US20110088359A1 US12/995,384 US99538409A US2011088359A1 US 20110088359 A1 US20110088359 A1 US 20110088359A1 US 99538409 A US99538409 A US 99538409A US 2011088359 A1 US2011088359 A1 US 2011088359A1
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United States
Prior art keywords
web
wrapping
film
product
stretchable
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.)
Abandoned
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US12/995,384
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English (en)
Inventor
Pierre BROCARD
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Individual
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Individual
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Priority to US12/995,384 priority Critical patent/US20110088359A1/en
Publication of US20110088359A1 publication Critical patent/US20110088359A1/en
Abandoned legal-status Critical Current

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    • 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
    • B65B11/006—Helical strip wrapping combined with roping
    • 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
    • B65B11/04—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated
    • B65B11/045—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated by rotating platforms supporting the 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B2011/002—Prestretching mechanism in wrapping machines
    • 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 description is concerned with methods and devices for wrapping products. More particularly, it concerns the temporary wrapping of products for protection during transportation or other purposes.
  • the thickness of the stretchable film as well as the number of revolutions performed by the film around the pallet and product assembly varies according to the nature of the product to be protected and contained for transport. For example, in the case of a 40′′ by 48′′ by 48′′ pallet and product assembly, there could be used:
  • a wrapping machine for wrapping a web of at least two stretchable films around a product.
  • the wrapping machine comprises a dispenser for dispensing the at least two stretchable films with a longitudinal overlap.
  • Each of the at least two stretchable films has a film edge in a longitudinal direction.
  • the wrapping machine further comprises a roper for roping the film edges of the at least two stretchable films; a stretching device for stretching, after the roping, the at least two stretchable films; and a frame structure on which is disposed the dispenser, the roper and the stretching device for delivering the web for wrapping around the product
  • a wrapping machine for wrapping a web of a stretchable film around a product.
  • the wrapping machine comprises a dispenser for dispensing the stretchable film having two film edges in a longitudinal direction and a roper for roping the two film edges of the stretchable film.
  • the roper comprises at least two pulleys such that each one the two film edges is introduced in a corresponding one of the at least two pulleys when the stretchable film is dispensed thereby roping the two film edges.
  • the wrapping machine further comprises a stretching device for stretching, after the roping, the stretchable film and a frame structure on which is disposed the dispenser, the roper and the stretching device for delivering the web for wrapping around the product.
  • a method for wrapping a web of a stretchable film around a product comprises: dispensing the stretchable film; introducing each one of the two film edges of the stretchable film in a pulley for roping the two film edges; after the introducing, stretching the web; and wrapping the web around the product.
  • a method for wrapping a web of at least two stretchable films around a product comprises: dispensing each of the at least two stretchable films with a longitudinal overlap, each of the at least two stretchable films having a film edge in a longitudinal direction; roping the film edges of the at least two stretchable films; after the roping, stretching the at least two stretchable films; and wrapping the web around the product.
  • a method for wrapping a stretched web around a product set on a pallet comprises: dispensing the stretched web having an end; holding the end on the product above the pallet; and wrapping the stretched web around the product.
  • FIG. 1 is a partial schematic front view of a wrapping machine according to an embodiment
  • FIG. 2 is a graph showing the mechanical characteristics of webs produced by different combinations of the wrapping machine of FIG. 1 ;
  • FIG. 3 is a partial schematic front view of a wrapping machine according to another embodiment
  • FIG. 4 is a graph showing the mechanical characteristics of webs produced by different combinations of the wrapping machine of FIG. 3 ;
  • FIG. 5 is a partial schematic front view of a wrapping machine according to another embodiment
  • FIG. 6 is a partial schematic front view of a wrapping machine according to another embodiment
  • FIG. 7 is a partial schematic front view of a wrapping machine according to another embodiment.
  • FIG. 8 is a partial schematic front view of a wrapping machine according to another embodiment
  • FIG. 9 is a partial schematic front view of a wrapping machine according to another embodiment.
  • FIG. 10 is schematic front view of a wrapping machine according to another embodiment
  • FIG. 11 is a schematic side view of the wrapping machine of FIG. 10 ;
  • FIG. 12 is a schematic side view of the wrapping machine of FIG. 11 adapted for delivering a different stretched web
  • FIG. 13 is schematic front view of a wrapping machine according to another embodiment
  • FIG. 14 is a schematic top view of the wrapping machine of FIG. 12 ;
  • FIG. 15 is a schematic top view of the wrapping machine of FIG. 12 before being engaged by a fork lift;
  • FIG. 16 is a schematic top view of the wrapping machine of FIG. 12 engaged by a fork lift wrapping a tool machine;
  • FIG. 17 is schematic top view of a wrapping machine according to another embodiment.
  • FIG. 18 is a schematic axonometric view of a holding and cutting arm according to an embodiment shown in an upright position holding a end of the web;
  • FIG. 19 is a schematic axonometric view of the holding and cutting arm of FIG. 18 after one complete turn around the product and with its pegs retracted;
  • FIG. 20 is a schematic axonometric view of the holding and cutting arm of FIG. 18 showing the arm in an escaped position;
  • FIG. 21 is a schematic axonometric view of the holding and cutting arm of FIG. 18 shown in an upright position with its cutting means ready to cut the web;
  • FIG. 22 is a partial schematic axonometric close up view of the holding and cutting arm of FIG. 18 with its pegs in a extracted position;
  • FIG. 23 is a partial schematic axonometric close up view of the holding and cutting arm of FIG. 18 with its pegs in a retracted position;
  • FIG. 24 is a schematic axonometric view of a holding and cutting arm comprising an upper and a lower arm according to another embodiment shown holding an end of the web;
  • FIG. 25 is a block diagram of a method for wrapping a web of a stretchable film around a product according to an embodiment
  • FIG. 26 is a block diagram of a method for wrapping a web of at least two stretchable films around a product according to another embodiment.
  • FIG. 27 is a block diagram of a method for wrapping a stretched web around a product set on a pallet according to another embodiment.
  • the wrapping machine described herein offers a considerable reduction in the cost of wrapping by using a curtain comprising a plurality of stretchable films, which are stretched in a conventional manner, in substantially a single revolution without reducing protection or containment of the products on the pallet.
  • the film dispenser uses three 20′′ film rolls.
  • all film rolls are modified by introducing roping at the edge of each film and/or overlapping the ropings to increase: film stretch, puncture resistance, and force to load.
  • 2′′ roping is performed at the bottom of the bottom film roll. 2′′ roping is performed at the top of the top film roll. A 4′′ overlap is obtained using the middle roll to cover 4′′ of the end of the bottom roll and another 4′′ overlap is obtained using the middle roll to cover 4′′ of the top roll.
  • the 48′′ curtain therefore comprises:
  • the total film height of the curtain is therefore 48′′ (14′′+4′′+12′′+4′′+14′′). This is called a re-enforced curtain of film for wrapping.
  • the curtain of film is mechanically pre-stretched and mechanically powered around the load for best dispensing.
  • FIG. 1 there is shown a part of a wrapping machine 100 dispensing a web 102 of a stretchable film 104 for wrapping a product, not shown.
  • FIG. 1 depicts conditions of experiments A conducted in a laboratory.
  • the wrapping machine 100 comprises a dispenser 106 loaded with a roll 108 of the stretchable film 104 which is dispensed toward pulleys 110 .
  • Each of the pulleys 110 is free to rotate around a rotation axis 112 substantially parallel to a width 114 of the stretchable film 104 .
  • the width 114 is in the vicinity of the pulleys 110 .
  • the pulleys 110 form a roper.
  • the stretchable film 104 has two film edges 116 which are introduced in the pulleys 110 and are thereby roped.
  • the two film edges 116 are in a longitudinal direction 117 of the stretchable film 104 .
  • Two roped edges 118 are produced before the stretchable film 104 is received by a braking roller 124 .
  • Each of the roped edges 118 are made by gathering each of the film edges 116 in the pulleys 110 .
  • Each of the film edges causes rotation of one corresponding of the pulleys 100 without longitudinal friction. This produces well roped edges 118 while the film between the two roped edges 118 is kept tight.
  • the braking roller 124 rotates around a braking axis 126 dispensing the stretchable film 104 to a free roller 120 which is free to rotate around a free axis 122 .
  • the free roller 120 and the braking roller 124 are disposed so that a portion of the stretchable film 104 being in contact with braking roller 124 is great enough to be firmly engaged by the braking roller 124 by friction.
  • the braking roller 124 is pivotally coupled to a brake 128 which can be adjusted to apply a braking torque to the braking roller 124 , to selectively block the rotation of the braking roller 124 .
  • the free roller 120 , the braking roller 124 and the brake 128 form a stretching device.
  • the dispenser 106 , the roper and the stretching device are disposed on a frame structure, not illustrated here, but shown in subsequent figures.
  • the brake 128 is released to dispense the web 102 around a traction bar 130 positioned at a distance L 0 from the braking roller 124 . Then the brake 128 is switched to a blocked status for immobilizing the portion of the stretchable film 104 which covers the braking roller 124 . Then a continuously increasing force S is applied to the middle of the traction bar 130 away from the free roller 120 according to a normal to the free axis 122 . While the force S increases, the traction bar 130 moves away from the free roller 120 . Experiments A are conducted until the web 102 breaks. During experiments A, values of force S and corresponding distance Ls are recorded in real time. Distance Ls is a distance of the traction bar 130 from the free roller 120 while a force S is applied to the traction bar as described above. A stretch percentage is defined as equal to (Ls ⁇ L 0 )/L 0 %.
  • FIG. 2 there is shown the variation of the force S according to the stretch percentage during experiments A as described above.
  • a first experiment A was conducted exactly as described above including a 0.7 ga thick stretchable film, having two roped edges 118 gathering each one of the film edges 116 , each roped edge being 1 inch wide.
  • the continuous curve 132 corresponds to the first experiment A.
  • a second experiment A was conducted with the same 0.7 ga thick stretchable film, but this time without the two roped edges as in the prior art.
  • the discontinuous curve 134 corresponds to the second experiment A.
  • the dispenser 106 is adapted to receive two rolls 108 of stretchable film for dispensing two identical stretchable films 104 fully overlapped.
  • the two film edges 116 of a front stretchable film 104 are introduced in front pulleys 110 to produce front roped edges.
  • the two film edges 116 of a back stretchable film 104 are introduced in back pulleys 110 to produce back roped edges.
  • the process of the experiments B is the same as for experiments A, which consists in applying a force S on the traction bar 130 , away from a free roller 120 .
  • a first experiment B was conducted exactly as described above including two identical 0.70 ga thick stretchable films, each having two roped edges 118 gathering each one of the film edges 116 , each being 2 inches wide.
  • a first curve 136 corresponds to the first experiment B.
  • a second experiment B was conducted with only one stretchable film, absolutely identical to each of the two stretchable films of the first experiment B, including the two roped edges.
  • a second curve 138 corresponds to the second experiment B.
  • a third and a fourth experiment B were conducted as described above each including respectively three and four identical stretchable films including the two roped edges.
  • a third curve 140 and a fourth curve 142 respectively correspond to the third and the fourth experiment B.
  • curves 136 , 138 , 140 , 142 show an unexpected phenomenon: for a given resistance, a single revolution of two roped films stretched together uses less film than two revolutions of a single roped films stretched alone.
  • the stretch rate is 350% and the tension 15 Lbs.
  • the stretch rate is 475% and the tension 30 Lbs. That shows that two revolutions of one film stretched at 350% are necessary to obtain the same strength as a single revolution with two films stretched together at 475%. It also shows that a single revolution with two films can use 36% less film than two revolutions of a single film.
  • FIG. 5 there is shown a part of a wrapping machine 500 equipped with a stretching device comprising a slow roller 144 and a fast roller 146 .
  • the dispenser 106 is adapted to receive two rolls 108 of stretchable films. Pulleys 110 are disposed for roping two film edges 116 so that the two longitudinal web edges 148 of the web 102 are each roped.
  • the dispenser 106 , the roper and the stretching device are disposed on the frame structure, not illustrated, for delivering the web 102 having a longitudinal overlap 150 .
  • the overlap 150 comprises two film edges 116 .
  • the combination of the roped longitudinal web edges 148 and the overlap 150 results in a higher resistance of the web 102 and a wide web for wrapping a product with almost a single revolution.
  • the slow roller 144 is moved into rotation by a standard motor, not shown.
  • the slow roller 144 receives the stretchable films and controls a slow speed of the web 102 .
  • the fast roller 146 is moved into rotation too by a standard motor, not shown.
  • the fast roller 146 receives the web 102 coming from the slow roller 144 and controls a fast speed of the web.
  • the fast speed is greater than the slow speed and has an opposition direction than the slow speed.
  • the web 102 is stretched thereby.
  • the roper further comprises a middle front pulley 110 a and a middle back pulley 110 b for roping two adjacent film edges 116 and increasing the resistance of the web.
  • a part of a wrapping machine 700 comprising a dispenser 106 , a roper, a stretching device and a frame structure, not shown.
  • the dispenser 106 is adapted for receiving three rolls 108 of stretchable films.
  • the roper comprises two edge pulleys 152 having an edge rotation axis 154 .
  • Pulleys 152 are disposed for roping two film edges 116 so that the two longitudinal web edges 148 of the web 102 are each roped.
  • the stretching device comprises a braking roller 124 and a stretching roller 156 .
  • the braking roller 124 receives the stretchable films 104 forming the web 102 .
  • the stretching roller 156 receives the web 102 coming from the braking roller 124 and pulls on it to stretch the web 102 .
  • the braking roller 124 controls the tension of the web 102 .
  • the dispenser 106 , the roper and the stretching device are disposed on the frame structure for delivering the web 102 having two longitudinal overlaps 150 . At least one of the film edges 116 of the overlaps 150 can be roped for increasing the resistance of the web 102 .
  • Each one of the edge rotation axis 154 is substantially normal to a width 114 of the corresponding stretchable film 104 .
  • the width 114 is in the vicinity of corresponding edge pulley 152 .
  • the edge pulleys 152 may be a bit less efficient than the pulleys 110 depicted on FIG. 1 , but they are some times easier to position when there are many rolls 108 of stretchable film on the wrapping machine 700 or when the space dedicated to the roper is really narrow.
  • FIG. 8 there is shown a part of a wrapping machine 800 designed like the wrapping machine depicted on FIG. 7 and adapted to receive three rolls 108 of stretchable film and to produce two separate webs 102 , each of the four longitudinal web edges 148 being roped.
  • Such arrangement allows wrapping products which need to be ventilated such as fruits or vegetables.
  • FIG. 9 there is shown a part of a wrapping machine 900 designed like the wrapping machine depicted on FIG. 1 and adapted to produce a web 102 further having a longitudinal strip 158 which is roped and located between the two longitudinal web edges 148 .
  • One pulley 110 is added between the two film edges 116 .
  • This additional roped longitudinal strip 158 allows increasing the resistance of the wrapping. Producing such a roped longitudinal strip 158 is possible with such a pulley 110 but is not possible with an edge pulley 152 as depicted on FIG. 7 .
  • the wrapping machine 160 comprises a frame structure having a gantry frame 162 and a rotary arm 164 .
  • the rotary arm 164 is linked to the gantry frame 162 with a ring gear bearing 166 which allows the rotary arm 164 to turn around an arm axis 168 .
  • the ring gear bearing 166 is fixed to the gantry frame 162 which is fixed to the ground 170 .
  • a rotary actuating means 172 controls the rotary arm 164 around the arm axis 168 .
  • a dispenser, a roper and a stretching device, as previously described are disposed on the rotary arm 164 for delivering a web 102 , pre-stretched or not, around a product 174 disposed on a pallet 176 .
  • the wrapping machine 161 is adapted for delivering a stretched web 103 having a width 175 smaller than a height 177 of a product 174 being wrapped.
  • the stretched web 103 comprises three stretchable films which were roped and stretched together by a dispenser, a roper and a stretching device as previously described.
  • the stretched web 103 comprises six roped edges 118 for conferring a high resistance to the stretched web 103 .
  • the wrapping machine 161 comprises a frame structure 182 fixed to the ground 170 .
  • the frame structure 182 comprises a moving frame 183 able to be moved according to a vertical axis.
  • the dispenser, the roper and the stretching device are disposed on the moving frame 183 for delivering the stretched web 103 at a varying height, not shown, according to the ground 170 .
  • the product 174 is disposed on a pallet 176 on a rotating table 173 for receiving the stretched web 103 .
  • the rotating table 173 rotates around an axis 171 , hence rotates the product 174 and thereby wraps the stretched web 103 around the product 174 .
  • the stretched web 103 is held to the top or upper portion of the product 174 , above the pallet 176 . Then the rotating table 173 rotates the product 174 and thereby wraps the stretched web 103 around the upper portion of the product 174 . It has been discovered that with stretched webs as previously described, many products 174 do not need to be wrapped with the pallet 176 and need to be wrapped only at its upper portion (e.g. pallet of beer cases which are temporally glued together). This allows to cut costs and to contribute to sustainable development.
  • FIG. 13 and FIG. 14 there are respectively shown a front view and a top view of a wrapping machine 180 according to another embodiment.
  • the wrapping machine 180 comprises a frame structure 182 and a dispenser, a roper and a stretching device, as previously described.
  • At the bottom of the frame structure 182 there are two openings 184 for receiving forks of a fork lift or other vehicle.
  • FIG. 15 there is shown a top view of the wrapping machine 180 depicted on FIG. 13 and FIG. 14 and a fork lift 186 disconnected from the wrapping machine 180 .
  • FIG. 16 there is shown the forklift 186 which has introduced its forks in the openings of the wrapping machine 180 , thereby embedding the wrapping machine 180 via its frame structure. Equipped as such, the forklift 186 is wrapping a machine tool 188 with the web 102 , driving around the machine tool 118 . It is possible to maintain a given level of the web 102 during the wrapping. It is also possible to vary the level of the web 102 for increasing a height of the wrapping.
  • Such a wrapping machine 180 is a low cost solution for wrapping expanded product or when the need of wrapping is occasional.
  • the wrapping machine 190 comprises a frame structure 192 , a dispenser, a roper and a stretching device, as previously described.
  • the wrapping machine 190 further comprises a moving device 194 for driving on a floor and for wrapping a product as depicted on FIG. 16 .
  • the moving device 194 comprises a motorization 196 for rotating a directional driving wheel 198 , two un-directional free wheels 200 , a control handle 202 for controlling a speed and a direction of the wrapping machine 190 and a standing platform 204 for receiving an operator.
  • the holding and cutting arm 206 is for holding a web 102 of stretchable film at the beginning of the wrapping of a product 174 and for cutting the web 102 at the end of the wrapping.
  • the holding and cutting arm 206 is pivotally coupled to a portion of a frame structure 192 so that when the holding and cutting arm 206 rotates, it moves along a side wall 208 of the product 174 .
  • the portion of the frame structure 192 is substantially fixed with respect to the product 174 during the wrapping.
  • the portion of the frame structure 192 rotates as well, possibly embedded on a compression plate, not shown, for maintaining the product, which is compacted during the wrapping. If the product 174 is static with respect to the ground, the portion of the frame structure 192 is static as well. In any case, the portion of the frame structure 192 can be disposed at the base of the product 174 , as shown, or at the top of the product 174 , not depicted.
  • the releasable holding means 210 comprises an arm bar 214 equipped with a bank of pegs 216 , both logged into the holding and cutting arm 206 .
  • the pegs 216 pass through arm holes 218 of the holding and cutting arm 206 .
  • the arm bar 214 is movable inside the holding and cutting arm 206 so that the releasable holding means 210 can be active for holding a web as shown on FIG. 22 and the releasable holding means 210 can be released for releasing a web as shown on FIG. 23 .
  • the releasable holding means comprise gripping fingers which can escape the web.
  • the cutting means 212 comprises a wire 220 .
  • the wire 220 is activated with an electric current which heats the wire and thereby cuts a web located proximate the wire 220 .
  • FIG. 18 , FIG. 19 , FIG. 20 and FIG. 21 concurrently referred to, there are shown steps of use of the holding and cutting arm 206 during a wrapping of a product 174 .
  • the releasable holding means of the holding and cutting arm 206 is activated, the pegs are extracted and the web 102 is held along the holding and cutting arm 206 .
  • the web 102 is wrapped around the product 174 for more than one revolution as depicted on FIG. 19 .
  • the releasable holding means is released and the holding and cutting arm 206 rotates, escaping between the web 102 and the side wall 208 as depicted on FIG. 20 .
  • the holding and cutting arm 206 is down.
  • the web 102 can be wrapped around the product 174 for many revolutions as necessary.
  • the holding and cutting arm 206 is risen as depicted on FIG. 21 , the cutting means is activated for cutting the web 102 and the holding means is activated to for holding the end of the web 102 to be ready for a new wrapping cycle.
  • the holding and cutting arm 206 comprises a lower arm 222 and an upper arm 224 , each pivotally coupled to a portion of a frame structure 192 for escaping between the web 102 and a side wall 208 of the product 174 during a wrapping cycle as previously described.
  • any combination is allowed according to the wrapping product requirement; i.e., combining: number of revolution, no roped film edge, single roped film edge, double roped film edges, roped longitudinal strip, single stretch films, two stretch films or three stretch films or more, identical films or different films in width, thickness or composition, partial overlap or full overlap, etc.
  • number of revolution no roped film edge
  • single roped film edge double roped film edges
  • roped longitudinal strip single stretch films
  • two stretch films or three stretch films or more identical films or different films in width, thickness or composition, partial overlap or full overlap, etc.
  • a block diagram provides steps of a method 226 for wrapping a web of a stretchable film around a product according to an embodiment.
  • the method 226 comprises the steps of: Dispensing the stretchable film (step 228 ); Introducing each one of the two film edges of the stretchable film in a pulley for roping the two film edges (step 230 ); After the introducing, stretching the web (step 232 ); and wrapping the web around the product (step 234 ).
  • a block diagram provides steps of a method 236 for wrapping a web of at least two stretchable films around a product according to another embodiment.
  • the method 236 comprises the steps of: Dispensing each of the at least two stretchable films with a longitudinal overlap, each of the at least two stretchable films has a film edge in a longitudinal direction (step 238 ).
  • the method 236 further comprises the steps of: Roping the film edges of the at least two stretchable films (step 240 ); After the roping, stretching the at least two stretchable films (step 242 ); and wrapping the web around the product (step 244 ).
  • the step of wrapping the web around the product is such that one film edge is substantially included in a given plane when the web is wrapped around the product.
  • the method 236 optionally further comprises a step of defining a wrapping plan according to wrapping requirements of the product (step 246 ).
  • a block diagram provides steps of a method for wrapping a stretched web around a product set on a pallet, according to another embodiment.
  • the method comprises the steps of: Dispensing the stretched web having a end (step 250 ); holding the end on the product above the pallet (step 252 ); and wrapping the stretched web around the product (step 254 ).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
US12/995,384 2008-06-27 2009-06-29 Method and device for wrapping products Abandoned US20110088359A1 (en)

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US7619108P 2008-06-27 2008-06-27
PCT/CA2009/000924 WO2009155713A2 (fr) 2008-06-27 2009-06-29 Procédé et dispositif d'enveloppement de produits
US12/995,384 US20110088359A1 (en) 2008-06-27 2009-06-29 Method and device for wrapping products

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Cited By (19)

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US20130104754A1 (en) * 2009-12-01 2013-05-02 Kuhn-Geldrop Bv Binding apparatus and method for binding a bale
US8549819B1 (en) * 2006-10-11 2013-10-08 Darrel Bison Pallet roping and wrapping apparatus and method
US20170137156A1 (en) * 2003-01-31 2017-05-18 Lantech.Com, Llc Method And Apparatus For Securing A Load To A Pallet With A Roped Film Web
US9802722B1 (en) 2006-10-11 2017-10-31 Darrel Bison Pallet roping and wrapping apparatus
FR3070682A1 (fr) * 2017-09-01 2019-03-08 Cercleurop Finances Devidoir permettant de realiser un plissage d’un bord d’un film plastique
US20190084703A1 (en) * 2017-09-18 2019-03-21 Phoenix Wrappers ULC Methods and Apparatuses for Securing a Palletized Load with Stretch Film
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
CN110127099A (zh) * 2019-05-24 2019-08-16 姜迪 一种多功能有机蔬菜快速打包设备
IT201900015842A1 (it) * 2019-09-06 2021-03-06 Bema Srl Testa per la fasciatura di carichi, particolarmente carichi pallettizzati, e rispettivo metodo di fasciatura
US11021281B2 (en) * 2012-06-18 2021-06-01 TAB Industries, LLC Orbital stretch wrapping apparatus
US11434029B1 (en) 2020-04-03 2022-09-06 Darrel Bison Shipping pallet wrapping system
US20230049546A1 (en) * 2020-01-31 2023-02-16 Aetna Group S.P.A. Method and apparatus for wrapping
US11628959B1 (en) * 2020-04-03 2023-04-18 Darrel Bison Shipping pallet wrapping system
US11685562B1 (en) * 2020-04-03 2023-06-27 Darrel Bison Pallet wrapping system with overlapping bands
WO2023133168A1 (fr) * 2022-01-04 2023-07-13 Darrel Bison Système d'emballage de palette à bandes se chevauchant
WO2023133164A1 (fr) * 2022-01-04 2023-07-13 Darrel Bison Système d'enroulement de palette à bandes se chevauchant
US11780628B1 (en) 2022-01-06 2023-10-10 Darrel Bison Encoder mount for a pallet wrapping system
US11801953B2 (en) 2022-01-06 2023-10-31 Darrel Bison Pallet wrapping system with overlapping bands
US11912452B1 (en) 2022-01-06 2024-02-27 Darrel Bison Pallet wrapping system with intelligent monitoring

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EP2589540A4 (fr) * 2010-06-29 2014-02-19 Control D Embalatges S L Emballeuse
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US20170137156A1 (en) * 2003-01-31 2017-05-18 Lantech.Com, Llc Method And Apparatus For Securing A Load To A Pallet With A Roped Film Web
US11472580B2 (en) * 2003-01-31 2022-10-18 Lantech.Com, Llc Method and apparatus for securing a load to a pallet with a roped film web
US10526099B2 (en) 2006-10-11 2020-01-07 Darrel Bison Pallet roping and wrapping apparatus
US9802722B1 (en) 2006-10-11 2017-10-31 Darrel Bison Pallet roping and wrapping apparatus
US8549819B1 (en) * 2006-10-11 2013-10-08 Darrel Bison Pallet roping and wrapping apparatus and method
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US11021281B2 (en) * 2012-06-18 2021-06-01 TAB Industries, LLC Orbital stretch wrapping apparatus
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
FR3070682A1 (fr) * 2017-09-01 2019-03-08 Cercleurop Finances Devidoir permettant de realiser un plissage d’un bord d’un film plastique
US20190084703A1 (en) * 2017-09-18 2019-03-21 Phoenix Wrappers ULC Methods and Apparatuses for Securing a Palletized Load with Stretch Film
US11939089B1 (en) * 2017-09-18 2024-03-26 Phoenix Wrappers Corp. Methods and apparatuses for securing a palletized load with stretch film
US10960998B2 (en) * 2017-09-18 2021-03-30 Phoenix Wrappers ULC Methods and apparatuses for securing a palletized load with stretch film
CN110127099A (zh) * 2019-05-24 2019-08-16 姜迪 一种多功能有机蔬菜快速打包设备
IT201900015842A1 (it) * 2019-09-06 2021-03-06 Bema Srl Testa per la fasciatura di carichi, particolarmente carichi pallettizzati, e rispettivo metodo di fasciatura
WO2021044368A1 (fr) * 2019-09-06 2021-03-11 Bema S.R.L. Tête d'emballage pour l'emballage de charges, en particulier de charges palettisées, et son procédé de fonctionnement
US20220340315A1 (en) * 2019-09-06 2022-10-27 E80 Group S.p.A. Wrapping head for wrapping loads, particularly palletized loads, and method of operation thereof
US20230049546A1 (en) * 2020-01-31 2023-02-16 Aetna Group S.P.A. Method and apparatus for wrapping
US12012237B2 (en) * 2020-01-31 2024-06-18 Aetna Group S.P.A. Method and apparatus for wrapping
US11628959B1 (en) * 2020-04-03 2023-04-18 Darrel Bison Shipping pallet wrapping system
US20230117677A1 (en) * 2020-04-03 2023-04-20 Darrel Bison Shipping pallet wrapping system
US11685562B1 (en) * 2020-04-03 2023-06-27 Darrel Bison Pallet wrapping system with overlapping bands
US11434029B1 (en) 2020-04-03 2022-09-06 Darrel Bison Shipping pallet wrapping system
US11767136B1 (en) 2020-04-03 2023-09-26 Darrel Bison Shipping pallet wrapping system
US11970296B2 (en) 2020-04-03 2024-04-30 Darrel Bison Pallet wrapping system with overlapping bands
US11958642B1 (en) 2020-04-03 2024-04-16 Darrel Bison Shipping pallet wrapping system
WO2023133164A1 (fr) * 2022-01-04 2023-07-13 Darrel Bison Système d'enroulement de palette à bandes se chevauchant
WO2023133168A1 (fr) * 2022-01-04 2023-07-13 Darrel Bison Système d'emballage de palette à bandes se chevauchant
US11912452B1 (en) 2022-01-06 2024-02-27 Darrel Bison Pallet wrapping system with intelligent monitoring
ES2945934R1 (es) * 2022-01-06 2023-12-21 Darrel Bison Sistema de envoltura de pale con bandas superpuestas
US11801953B2 (en) 2022-01-06 2023-10-31 Darrel Bison Pallet wrapping system with overlapping bands
US11780628B1 (en) 2022-01-06 2023-10-10 Darrel Bison Encoder mount for a pallet wrapping system
US12071269B1 (en) 2022-01-06 2024-08-27 Darrel Bison Encoder mount for a pallet wrapping system

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