EP3093245A1 - Cutting wrapping film on a lap seal machine - Google Patents
Cutting wrapping film on a lap seal machine Download PDFInfo
- Publication number
- EP3093245A1 EP3093245A1 EP16169422.9A EP16169422A EP3093245A1 EP 3093245 A1 EP3093245 A1 EP 3093245A1 EP 16169422 A EP16169422 A EP 16169422A EP 3093245 A1 EP3093245 A1 EP 3093245A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- article
- conveyor
- flap
- rollers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
- B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
- B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
-
- 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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
-
- 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
- B65B11/54—Wrapping by causing the wrapper to embrace one end and all sides of the contents, and closing the wrapper onto the opposite end by forming regular or irregular pleats
-
- 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
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
- B65B41/16—Feeding webs from rolls by rollers
-
- 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
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
-
- 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
- B65B2210/04—Customised on demand packaging by determining a specific characteristic, e.g. shape or height, of articles or material to be packaged and selecting, creating or adapting a packaging accordingly, e.g. making a carton starting from web 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
- 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
- B65B59/001—Arrangements to enable adjustments related to the product to be packaged
-
- 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
Definitions
- This invention relates to cutting wrapping film to a predetermined length of film for wrapping an article on a Lap Seal machine. The cutting takes place after the fly bar begins film wrapping the product.
- the objective of this invention is to replace the need for a shear and vacuum belt or separation rollers used in feeding a predetermined length of film in a lap seal machine. This is accomplished by cutting a predetermined length of film while wrapping an article with the film.
- article is used to define a single article or a bundle of articles.
- Figure 1 is a conventional lap seal machine.
- a roll of film 2 is usually provided with printed sections spaced apart so the film can be cut without having to cut through the printed sections.
- Film 1 is pulled of a roll 2 by film feed rollers 5 and is fed through a dancing roll 3. From the dancing roll 3 the film goes past a sensor 4. The sensor 4 detects the location of the print or a detectable mark on the film so that a shear 6 can cut the film to a predetermined length without cutting through the printed portion of the film. From the sensor 4 the film goes to a film feed rollers 5.
- Feed rollers 5 push the film through the shear 6 on to vacuum belt conveyor 7.
- Conveyor 7 moves the film so that a flap 10 of the film is on conveyor 9. The conveyor 7 stops and waits for the next cycle. During this time the shear cuts the film 1 to predetermine length.
- An article moves on top of the flap on conveyor 9.
- Afterward fly bar 8 picks up the film from underneath the conveyor 9 to wrap the article as it moving on the conveyor
- Figure 2 is similar to figure 1 except the vacuum conveyor and the shear has been replaced by a separation rollers and a film that has perforations lines (made by a perforation machine 12) across the width of the film.
- This application incorporates by reference, in the entirety, US Patent 7,836,670, filed November 23, 2010 by the same inventor which describes the invention shown in figure 2 .
- the apparatus in figure 2 of US Patent 7,836,670 can be used with a film that already has perforation lines or where the perforation means is part of the apparatus.
- the film is perforated so that the film can be mechanically separated into predetermined lengths by applying a sufficient force to tear the film along a perforation line.
- the location of the perforation line determines the length of film to be used for wrapping an article.
- the film can be provided on a roll with perforations lines corresponding to a predetermined length for wrapping an article.
- a perforation machine or a shear having a serrated blade to form perforations can be inserted prior to the feed roller lines to from the perforation lines.
- the means for sensing where the perforation line should be located covers two situations. First, the sensor detects a mark or indicator on a perforated film to locate the perforation line. In the alternative the sensor detects a mark or indicator on a non perforated film where the film should be perforated. Once the location of perforation is determined the location of the separation point 15 can be determined by conventional means.
- the separation rollers and the film feed rollers are moving at the same speed.
- the separation rollers 11 and feed mean rollers 5 are spaced as close possible.
- the film 1 is pulled off the roll 2 and a flap 10 of the film is pushed onto belt conveyor 7.
- a conventional sensor can be used to detect the location of the perforation line.
- the film is pre marked so that the sensor can detect the location of the perforation line.
- the packaging bar code can be used as the mark.
- the means for driving the feeder rollers 5 can be a motor such as a servo motor.
- the separator rollers 11 can be driven by a separate motor or attached by a pulley and drive belt to the motor driving the feeder rollers.
- the separation roller has a free idle wheel so by inertia the separation rollers will try to maintain its original speed when the motor slows down the feeder rolls.
- Conventional motor controls are used to control the motors and movement of the film and the lap seal machine.
- a perforation means such as a shear with a serrated blade to form the perforations can be can be inserted before film feed roller 5.
- the perforation line is located on the film according to the length of film needed.
- a perforation means 12 comprising a shear with a serrated blade is used to form the perforated lines.
- a means to adjust the length of the film for wrapping is placed between the shear where the film is perforated and where the film is separated.
- the means to adjust the length of the film is a member such as a roller 13. By moving the roller 13 the film path can be changed to provide different predetermine lengths of film between the perforated line and the separation point 15.
- the separation rollers and the film feed rollers act to separate the film along the perforation line.
- the separation rollers 11 and feed mean rollers 5 are spaced as close possible.
- the film 1 is pulled off the roll 2 and a flap 10 of the film is pushed onto belt conveyor 7.
- a conventional sensor as used in figure 1 can be used to detect the location of the perforation line.
- the film is pre marked so that the sensor can detect the location of the perforation line.
- the perforation line moves to a position between film feed rollers 4 and separation rollers 11, the film feed rollers slows down. The separation roller maintains its speed.
- This difference in speed of the rollers causes a force that mechanically separates the film along the perforation line at separation point 15.
- the feed rollers after the film separation continue to push the film between the separation rollers so a flap of the film rests on the transfer belt of a conveyor 9.
- the conveyor 9 transfers the article to another conveyor.
- the flybar 8 pulls the film into a slot between the conveyors causing the film to be overlapped when the product is transferred to the other conveyor.
- Figure 3 shows a film 1 pulled from film roll 2 by film feed rollers 5.
- the film feed rollers 5 pushes the film so a flap 10 rest on a first conveyor 9 that transfers the article to a second conveyor 18.
- the second conveyor 18 is a heat shrink conveyor that transfers the article through a heat shrink tunnel.
- FIG 4 shows fly bar 8 picking up the film from behind the product and over the top of the product. Fly bar 8 and feed rollers 5 pull the film to a predetermined length sufficient to wrap the article. After the predetermined length has been pulled, the feed rollers 5, fly bar 8 and conveyor 9 stop. This causes the film to stop moving. Film cutting blade 17 cuts the stopped film.
- Figure 5 shows that after the film is cut, fly bar 8 and first conveyor 9 start to move to wrap the article. Fly bar 8 pushes the film through a slot between the first and second conveyers. Feed roller 5 pushes a flap on the first conveyor 9 and stops. The feed rollers 5 wait for another article to be place on the flap 10 to repeat the wrapping cycle for another article.
- the predetermined length can be established by relying on a timer or an encoder or a sensing mark to indicate the length of material needed to wrap the article. This is usually done by controlling the final position of the fly bar 8 before stopping fly bar 8.
Abstract
In a lap seal machine there is a need to provide a predetermined length of film for wrapping a product. This is accomplished by cutting a predetermined length of film while wrapping an article with the film. The wrapping is done by a fly bar (8) that stops after a predetermined length of the film (1) is pulled. The stopped film is then cut by a knife (17).
Description
- This invention relates to cutting wrapping film to a predetermined length of film for wrapping an article on a Lap Seal machine. The cutting takes place after the fly bar begins film wrapping the product.
- The objective of this invention is to replace the need for a shear and vacuum belt or separation rollers used in feeding a predetermined length of film in a lap seal machine. This is accomplished by cutting a predetermined length of film while wrapping an article with the film. The term article is used to define a single article or a bundle of articles. These changes result in substantial economic savings in the construction of the machine.
-
Figure 1 is a conventional lap seal machine. A roll offilm 2 is usually provided with printed sections spaced apart so the film can be cut without having to cut through the printed sections.Film 1 is pulled of aroll 2 byfilm feed rollers 5 and is fed through adancing roll 3. From thedancing roll 3 the film goes past a sensor 4. The sensor 4 detects the location of the print or a detectable mark on the film so that a shear 6 can cut the film to a predetermined length without cutting through the printed portion of the film. From the sensor 4 the film goes to afilm feed rollers 5.Feed rollers 5 push the film through the shear 6 on tovacuum belt conveyor 7. Conveyor 7 moves the film so that aflap 10 of the film is onconveyor 9. Theconveyor 7 stops and waits for the next cycle. During this time the shear cuts thefilm 1 to predetermine length. An article moves on top of the flap onconveyor 9. Afterwardfly bar 8 picks up the film from underneath theconveyor 9 to wrap the article as it moving on the conveyor with the predetermined length of film. -
Figure 2 is similar tofigure 1 except the vacuum conveyor and the shear has been replaced by a separation rollers and a film that has perforations lines (made by a perforation machine 12) across the width of the film. This application incorporates by reference, in the entirety,US Patent 7,836,670, filed November 23, 2010 by the same inventor which describes the invention shown infigure 2 . - The apparatus in
figure 2 ofUS Patent 7,836,670 , can be used with a film that already has perforation lines or where the perforation means is part of the apparatus. The film is perforated so that the film can be mechanically separated into predetermined lengths by applying a sufficient force to tear the film along a perforation line. The location of the perforation line determines the length of film to be used for wrapping an article. - The film can be provided on a roll with perforations lines corresponding to a predetermined length for wrapping an article. In the alternative a perforation machine or a shear having a serrated blade to form perforations can be inserted prior to the feed roller lines to from the perforation lines.
- The means for sensing where the perforation line should be located covers two situations. First, the sensor detects a mark or indicator on a perforated film to locate the perforation line. In the alternative the sensor detects a mark or indicator on a non perforated film where the film should be perforated. Once the location of perforation is determined the location of the
separation point 15 can be determined by conventional means. - In the normal operation of a film having perforation lines the separation rollers and the film feed rollers are moving at the same speed. The
separation rollers 11 and feedmean rollers 5 are spaced as close possible. Thefilm 1 is pulled off theroll 2 and aflap 10 of the film is pushed ontobelt conveyor 7. While the film is being pulled off theroll 2, a conventional sensor can be used to detect the location of the perforation line. Usually the film is pre marked so that the sensor can detect the location of the perforation line. The packaging bar code can be used as the mark. When the perforation line moves to a position between film feed rollers 4 andseparation rollers 11, the film feed rollers slows down. The separation roller maintains its speed. This difference in speed of the rollers causes a force that mechanically separates the film along the perforation line atseparation point 15. The feed rollers after the film separation continue to push the film between the separation rollers. - The means for driving the
feeder rollers 5 can be a motor such as a servo motor. Theseparator rollers 11 can be driven by a separate motor or attached by a pulley and drive belt to the motor driving the feeder rollers. The separation roller has a free idle wheel so by inertia the separation rollers will try to maintain its original speed when the motor slows down the feeder rolls. Conventional motor controls are used to control the motors and movement of the film and the lap seal machine. - When the
fly bar 8 lifts the film to wrap the article the film feed roller resumes the same speed as the separation roller and the operation is repeated to wrap the article with the predetermined length of film. - If the film is not perforated, a perforation means such as a shear with a serrated blade to form the perforations can be can be inserted before
film feed roller 5. The perforation line is located on the film according to the length of film needed. - In a preferred embodiment a perforation means 12 comprising a shear with a serrated blade is used to form the perforated lines. A means to adjust the length of the film for wrapping is placed between the shear where the film is perforated and where the film is separated. The means to adjust the length of the film is a member such as a
roller 13. By moving theroller 13 the film path can be changed to provide different predetermine lengths of film between the perforated line and theseparation point 15. - To separate the film, there are means for stopping the
feed rollers 5 when the perforation line reachespoint 15. These means is usually by stopping a servo motor that drives the feed rollers causing the film to stop and the film to separate. The separation rollers will continue to spin freely on its free wheel causing the film to separate and to push the remaining film towardconveyor 9. After separation the end of the film "pushed" by thefilm rollers 5 enters theseparation rollers 11. - On the
figure 2 , the separation rollers and the film feed rollers act to separate the film along the perforation line. Theseparation rollers 11 and feedmean rollers 5 are spaced as close possible. Thefilm 1 is pulled off theroll 2 and aflap 10 of the film is pushed ontobelt conveyor 7. While the film is being pulled off theroll 2, a conventional sensor as used infigure 1 can be used to detect the location of the perforation line. Usually the film is pre marked so that the sensor can detect the location of the perforation line. When the perforation line moves to a position between film feed rollers 4 andseparation rollers 11, the film feed rollers slows down. The separation roller maintains its speed. This difference in speed of the rollers causes a force that mechanically separates the film along the perforation line atseparation point 15. The feed rollers after the film separation continue to push the film between the separation rollers so a flap of the film rests on the transfer belt of aconveyor 9. Theconveyor 9 transfers the article to another conveyor. Theflybar 8 pulls the film into a slot between the conveyors causing the film to be overlapped when the product is transferred to the other conveyor. -
-
Figure 1 shows film wrapping using a vacuum belt. -
Figure 2 shows using separation rollers to separate perforated film. -
Figure 3 shows a cutting knife positioned after the film feed rollers -
Figure 4 shows cutting a film to a predetermined length after stopping the film. -
Figure 5 shows overlapping the film by transferring that article to another conveyor. -
Figure 3 shows afilm 1 pulled fromfilm roll 2 byfilm feed rollers 5. Thefilm feed rollers 5 pushes the film so aflap 10 rest on afirst conveyor 9 that transfers the article to asecond conveyor 18. Usually thesecond conveyor 18 is a heat shrink conveyor that transfers the article through a heat shrink tunnel. - After the
flap 10 is placed onconveyor 9,flight bar conveyor 19 pushes thearticle 14 ontoflap 10.Figure 4 shows flybar 8 picking up the film from behind the product and over the top of the product. Flybar 8 andfeed rollers 5 pull the film to a predetermined length sufficient to wrap the article. After the predetermined length has been pulled, thefeed rollers 5, flybar 8 andconveyor 9 stop. This causes the film to stop moving.Film cutting blade 17 cuts the stopped film.Figure 5 shows that after the film is cut, flybar 8 andfirst conveyor 9 start to move to wrap the article. Flybar 8 pushes the film through a slot between the first and second conveyers.Feed roller 5 pushes a flap on thefirst conveyor 9 and stops. Thefeed rollers 5 wait for another article to be place on theflap 10 to repeat the wrapping cycle for another article. - The predetermined length can be established by relying on a timer or an encoder or a sensing mark to indicate the length of material needed to wrap the article. This is usually done by controlling the final position of the
fly bar 8 before stoppingfly bar 8.
Claims (10)
- An apparatus for film wrapping an article comprising- means (5) for pushing a flap (10) of the film (1) onto a first conveyor (9),- a second conveyor (18),- means (19) for placing an article (14) on the flap,- means (8) for picking up the film from behind the article and moving the film over the article,- means for stopping the movement of the film over the article when a predetermined length has been pulled,- means (17) for cutting the predetermined length of film needed to wrap said article after the film has stopped,- means for continuing the movement of the film over the article whereby the film is pushed into slot, between the first conveyor and the second conveyor, and- means for heat shrinking the film around the article.
- An apparatus according to claim 1 wherein the means for pushing the flap of the film onto the first conveyor are feed rollers
- An apparatus according to claim 1 or 2 wherein the means for picking up the film from behind the article and moving the film over the article is a fly bar
- An apparatus according to any one of the preceding claims wherein the means for stopping the movement of the film includes means for stopping the feed roller, fly bar and first conveyor
- An apparatus according to any one of the preceding claims including means for overlapping the film around the article by transferring the article from the first conveyor to the second conveyor.
- A process for film wrapping an article comprising- pushing a flap (10) of the film (1) onto a first conveyor (9),- positioning a second conveyor (18) next to the first conveyor to form a slot,- placing an article (14) on the flap,- picking up the film from behind the article and moving the film over the article,- stopping the movement of the film over the article,- cutting the stopped film to providing a predetermined length of film needed to wrap said article,- continuing the movement of the film over the article and into the slot between the first conveyor and the second conveyor, and- heat shrinking the film
- A process according to claim 6 wherein the film is overlapped by transferring the article form the first conveyor to the second conveyor.
- A process according to claim 6 or 7 where the film is picked up by a fly bar (8).
- A process according to claim 8 wherein the first conveyor and fly bar and feed rollers (5) are stopped to prevent the movement of the film.
- A process according to claim 8 wherein the first conveyor and the fly bar start moving to continue the movement of the stopped film.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/712,878 US20160332764A1 (en) | 2015-05-14 | 2015-05-14 | Cutting wrapping film on a lap seal machine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3093245A1 true EP3093245A1 (en) | 2016-11-16 |
Family
ID=55967179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16169422.9A Withdrawn EP3093245A1 (en) | 2015-05-14 | 2016-05-12 | Cutting wrapping film on a lap seal machine |
Country Status (2)
Country | Link |
---|---|
US (1) | US20160332764A1 (en) |
EP (1) | EP3093245A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991012176A1 (en) * | 1990-02-09 | 1991-08-22 | Cunningham & Jepson Packaging Limited | Improvements in or relating to over-wrapping apparatus for packaging machines |
EP0949145A1 (en) * | 1998-04-07 | 1999-10-13 | Baumer S.r.l. | Method and machine for packaging of objects, by means of pieces of sheet material obtained from a continuous strip |
WO2008048422A2 (en) * | 2006-10-18 | 2008-04-24 | Alain Cerf | Perforated film wrapping machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3791100A (en) * | 1971-02-04 | 1974-02-12 | Weldotron Corp | Bundling machine and process |
IT1304441B1 (en) * | 1998-12-22 | 2001-03-19 | Baumer Srl | METHOD FOR PACKAGING OBJECTS THROUGH LEAF OF THERMORETRACTIVE MATERIALS AND RELATED PACKING MACHINE. |
US6978878B2 (en) * | 2003-12-18 | 2005-12-27 | Shao Yi Chiu | Continuous feeding device for a single layer color film packaging machine |
US20050193693A1 (en) * | 2004-03-04 | 2005-09-08 | Yi-Chiu Chao | Packing machine having prepared film connecting function |
FR2964375B1 (en) * | 2010-09-08 | 2013-05-17 | Sidel Participations | INJECTION TABLE FOR A PLASTIC FILM FOR A FENDER |
-
2015
- 2015-05-14 US US14/712,878 patent/US20160332764A1/en not_active Abandoned
-
2016
- 2016-05-12 EP EP16169422.9A patent/EP3093245A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991012176A1 (en) * | 1990-02-09 | 1991-08-22 | Cunningham & Jepson Packaging Limited | Improvements in or relating to over-wrapping apparatus for packaging machines |
EP0949145A1 (en) * | 1998-04-07 | 1999-10-13 | Baumer S.r.l. | Method and machine for packaging of objects, by means of pieces of sheet material obtained from a continuous strip |
WO2008048422A2 (en) * | 2006-10-18 | 2008-04-24 | Alain Cerf | Perforated film wrapping machine |
US7836670B2 (en) | 2006-10-18 | 2010-11-23 | Alain Cerf | Perforated film wrapping machine |
Also Published As
Publication number | Publication date |
---|---|
US20160332764A1 (en) | 2016-11-17 |
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