EP1736426A2 - Dispositif pour la production de rouleaux de film étirable pré-étiré dans une direction longitudinale - Google Patents

Dispositif pour la production de rouleaux de film étirable pré-étiré dans une direction longitudinale Download PDF

Info

Publication number
EP1736426A2
EP1736426A2 EP06115187A EP06115187A EP1736426A2 EP 1736426 A2 EP1736426 A2 EP 1736426A2 EP 06115187 A EP06115187 A EP 06115187A EP 06115187 A EP06115187 A EP 06115187A EP 1736426 A2 EP1736426 A2 EP 1736426A2
Authority
EP
European Patent Office
Prior art keywords
film
container
reel
roller
prestretched
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Withdrawn
Application number
EP06115187A
Other languages
German (de)
English (en)
Other versions
EP1736426A3 (fr
Inventor
Angelo Forni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlanta Stretch SpA
Original Assignee
Atlanta Stretch SpA
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 Atlanta Stretch SpA filed Critical Atlanta Stretch SpA
Publication of EP1736426A2 publication Critical patent/EP1736426A2/fr
Publication of EP1736426A3 publication Critical patent/EP1736426A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/512—Changing form of handled material
    • B65H2301/5124—Stretching; Tentering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/10—Safety means, e.g. for preventing injuries or illegal operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/10—Mass, e.g. mass flow rate; Weight; Inertia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the invention relates to an apparatus which is easy to manufacture and low-cost and is therefore also within the price range of small and medium-size firms, said apparatus allowing the production of reels of extendable film prestretched longitudinally and of any weight, using a conventional reel of extendable film which is not difficult to procure, which has a large degree of autonomy and which has a cost which is overall much less than that of the reels of prestretched extendable film which can be obtained from it and are otherwise acquired already ready for use.
  • the apparatus comprises a container with a cover which is entirely or partly transparent, inside which the means for rotatably supporting the reel of extendable film as well as the prestretching rollers and the spindle for storing the prestretched film are arranged, these means being all operated by a centralized drive unit. Easy means are envisaged for programming the apparatus for the production of reels of prestretched film with the capacity and with the weight required in each case.
  • the apparatus comprises a container 1 which is made entirely of metal or with a metal frame and with cushioning elements made of any material, which rests on the ground with anti-vibration feet 2, which is open upwards and is closed by a cover 3 which is preferably made at least partly of transparent material, which is hinged for example at 103 on one end of the said container 1 and is provided at the other end with a gripping handle 203 for raising and lowering.
  • the hinging pivot 103 may be designed so that the cover 3 may be easily removed in order to facilitate the apparatus loading operations and any maintenance operations.
  • the cover 3 When, on the other hand, the cover 3 is in the position for closing the container 1, it is envisaged that the said cover activates a safety microswitch 4 which automatically stops the operation of the apparatus if the said cover is raised during a working cycle of the said apparatus in question.
  • the container 1 is provided internally with means for rotatably supporting about its horizontal axis the reel B supplying the extendable film, these means consisting for example of a pair of parallel and idle rollers 5 which are positioned on the bottom of the container 1 and parallel to the said hinging pivot 103 and on which the said reel of film B is rested along its generatrix, as shown in Figure 2.
  • Special means, not shown, are envisaged for facilitating positioning, on the idle rollers 5 inside the container 1, of the reel B which may have a considerable weight.
  • the container 1 has dimensions such that it is able to accommodate internally reels B for example with a diameter of 250-450 mm. Purely by way of a non-limiting example, the container 1 may have the following dimensions: width about 800-1000 mm, height about 500 mm, depth about 700 mm.
  • the sidewalls 101 of the container 1 rotatably support a shaft 6 which is keyed to the slow output of a gearmotor 7 which may be bracket-mounted on the outside of a said sidewall 101 and on which a rubber-coated roller 108 is keyed and which has, keyed on one end, a small-diameter gearwheel 9 which meshes with a larger-diameter gearwheel 10 keyed onto the end of a rubber-coated roller 8 parallel to the roller 108 and rotatably supported by a torque shaft 11 which connects together a pair of parallel arms 12 mounted with the possibility of freely pivoting on the said shaft 6.
  • a gearmotor 7 which may be bracket-mounted on the outside of a said sidewall 101 and on which a rubber-coated roller 108 is keyed and which has, keyed on one end, a small-diameter gearwheel 9 which meshes with a larger-diameter gearwheel 10 keyed onto the end of a rubber-coated roller 8 parallel to
  • the gearwheels 9 and 10 may be arranged inside a special casing or inside a lateral cavity of the container 1 so that they are protected and may be lubricated with suitable means and so that, if necessary, they may be replaced if it is required to modify the relative rotational ratio of the rubber-coated rollers 8 and 108.
  • the rubber-coated roller 108 rotates in the direction F1 opposite to the direction F2 of rotation of the rubber-coated roller 8 and at a higher speed which is determined by the ratio between the diameters of the gearwheels 9 and 10.
  • the said rubber-coated roller 8 rests tangentially by means of gravity on the reel B of film positioned on the support rollers 5 and also causes rotation of this reel about its axis, in the direction F3 and with the speed necessary for unwinding from the latter the film Z which is conveyed around the top half of the rubber-coated roller 8 and then around the bottom half of the rubber-coated roller 108, so that when passing from one roller to the other roller, the said film undergoes the desired longitudinal prestretching action.
  • Special means are envisaged for keeping the roller 8 temporarily in the raised position when it is required to position a new reel B of film on the support rollers 5.
  • These means may, for example, envisage that the torque shaft 11 projects with one end from a sidewall 101 of the container 1, through a curved slit 13 provided on this sidewall and having its centre of curvature on the drive shaft 6 and this same projecting end of the shaft 11 may be easily kept in the raised position as shown in Figure 1, by means of a simple latch 14 mounted externally on the said sidewall 101 which has the eyelet 13. After mounting the reel B on the rollers 5, the latch 14 is raised so as to free the pivoting structure 11, 12 so that the rubber-coated roller 8 comes into contact with the said reel B, as shown in Figure 2. It can be easily understood how, from the position of the shaft 11 inside the eyelet 13, it is possible to determine from outside the container 1 the state of the supply reel B.
  • the end of the prestretched film Z which leaves the faster rubber-coated roller 108 is fixed onto a tubular core A - for example made of cardboard - which is supplied in a suitable quantity with the apparatus in question.
  • the core A is keyed onto a spindle 15 which with its ends is removably supported by a pair of parallel pivoting arms 16 keyed onto a torque shaft 17 which is supported rotatably by the sidewalls 101 of the container 1, all of which being arranged so that the said core A tends to remain in contact by means of gravity with the rubber-coated roller 108.
  • This contact condition which is particularly useful during the initial stage of the cycle when the core A is empty and light, may be ensured by a special ballast weight incorporated in or associated with the spindle 15 or with the use of special resilient means, not shown in that they may be easily deduced by persons skilled in the art.
  • a special ballast weight incorporated in or associated with the spindle 15 or with the use of special resilient means, not shown in that they may be easily deduced by persons skilled in the art.
  • the cover 3 is opened, the film Z is cut along an accessible section, for example along the section situated between the rollers 8, 108 and then the pivoting structure 16 is rotated upwards, against the stop 18, in order to remove the spindle 15 with the associated reel B2, following which the said spindle 15 may be fitted with a new cardboard core and may be repositioned on the arms 16 for the repetition of a new working cycle.
  • the apparatus With the apparatus it is possible to produce reels of prestretched film of any desired weight, these involving partial unwinding of extendable film from the supply reel B.
  • the apparatus has, associated therewith in any suitable position also different from that shown in Figure 1, a small electric control panel 19 which comprises, for example, an activation control device 20, a stop control device 21 and a timer 22 by means of which it is possible to select the activity time of the apparatus and consequently the quantity of prestretched film stored on the reel A.
  • the rotating selector of the timer 22 may show, around it, the weight in kilograms of the film which may be stored on the tubular core A.
  • Special signalling means may be envisaged to indicate when the apparatus has produced the reel of prestretched film of predefined weight, after the timer 22 has stopped the gearmotor 7.
  • a pointer 23 may be fixed onto one end of the torque shaft 17, projecting from a sidewall 101 of the container 1, said pointer moving along a graduated scale provided on the outer side of the said sidewall, in order to indicate the weight or the diameter of the reel B2 of prestretched film stored on the core A.
  • the cover 3 could be designed as a kind of bell, raising of which would provide better access to the various components of the apparatus, both in order to facilitate arrangement in position of a new reel B, and for removal of the reel B2 of prestretched film produced in each case.

Landscapes

  • Unwinding Webs (AREA)
EP06115187A 2005-06-22 2006-06-08 Dispositif pour la production de rouleaux de film étirable pré-étiré dans une direction longitudinale Withdrawn EP1736426A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000413A ITBO20050413A1 (it) 2005-06-22 2005-06-22 Apparato per la produzione di bobine di film estensibile prestirato longitudinalmente e di diverso peso, partendo da normali bobine di film estensibile

Publications (2)

Publication Number Publication Date
EP1736426A2 true EP1736426A2 (fr) 2006-12-27
EP1736426A3 EP1736426A3 (fr) 2007-10-17

Family

ID=37106451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06115187A Withdrawn EP1736426A3 (fr) 2005-06-22 2006-06-08 Dispositif pour la production de rouleaux de film étirable pré-étiré dans une direction longitudinale

Country Status (3)

Country Link
US (1) US20060289691A1 (fr)
EP (1) EP1736426A3 (fr)
IT (1) ITBO20050413A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7568327B2 (en) 2003-01-31 2009-08-04 Lantech.Com, Llc Method and apparatus for securing a load to a pallet with a roped film web
US7707801B2 (en) 2005-04-08 2010-05-04 Lantech.Com, Llc Method for dispensing a predetermined amount of film relative to load girth
US7779607B2 (en) 2006-02-23 2010-08-24 Lantech.Com, Llc Wrapping apparatus including metered pre-stitch film delivery assembly and method of using
US9493262B2 (en) 2010-10-29 2016-11-15 Lantech.Com, Llc Machine generated wrap data
US9725195B2 (en) 2008-01-07 2017-08-08 Lantech.Com, Llc Electronic control of metered film dispensing in a wrapping apparatus
US9776748B2 (en) 2013-02-13 2017-10-03 Lantech.Com, Llc Containment force-based wrapping
US9908648B2 (en) 2008-01-07 2018-03-06 Lantech.Com, Llc Demand based wrapping
US9932137B2 (en) 2012-10-25 2018-04-03 Lantech.Com, Llc Corner geometry-based wrapping
US10005580B2 (en) 2012-10-25 2018-06-26 Lantech.Com, Llc Rotation angle-based wrapping
US10005581B2 (en) 2012-10-25 2018-06-26 Lantech.Com, Llc Effective circumference-based wrapping
US10053253B2 (en) 2014-10-07 2018-08-21 Lantech.Com, Llc Graphical depiction of wrap profile for load wrapping apparatus
US10227152B2 (en) 2014-01-14 2019-03-12 Lantech.Com, Llc Dynamic adjustment of wrap force parameter responsive to monitored wrap force and/or for film break reduction
US10934034B2 (en) 2015-09-25 2021-03-02 Lantech.Com, Llc Stretch wrapping machine with automated determination of load stability by subjecting a load to a disturbance
US11208225B2 (en) 2018-08-06 2021-12-28 Lantech.Com, Llc Stretch wrapping machine with curve fit control of dispense rate
US11479378B2 (en) 2019-09-09 2022-10-25 Lantech.Com, Llc Stretch wrapping machine with dispense rate control based on sensed rate of dispensed packaging material and predicted load geometry
US11518557B2 (en) 2019-09-19 2022-12-06 Lantech.Com, Llc Packaging material grading and/or factory profiles
US11667416B2 (en) 2017-09-22 2023-06-06 Lantech.Com, Llc Load wrapping apparatus wrap profiles with controlled wrap cycle interruptions

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Publication number Priority date Publication date Assignee Title
US20100015422A1 (en) * 2008-07-21 2010-01-21 Paragon Films, Inc. Oriented Film Produced In-Process for Use in the Stretch Film Market
US20110151217A1 (en) * 2009-12-18 2011-06-23 Paragon Films, Inc. Oriented Film Produced In-Process for Use in the Power Stretch Film Market
US11066198B2 (en) 2012-06-18 2021-07-20 TAB Industries, LLC Stretch film dispenser for orbital pallet wrappers
US9896229B1 (en) 2013-08-29 2018-02-20 Top Tier, Llc Stretch wrapping apparatus and method
DE102017102623A1 (de) * 2017-02-09 2018-08-09 TRüTZSCHLER GMBH & CO. KG Verfahren und Anlage zur Bearbeitung von Fasern
CN110733915B (zh) * 2019-10-17 2021-02-12 肇庆市东盛益源包装材料有限公司 一种缓阻膨胀且齐边的塑料薄膜收卷加工设备
CN115189095B (zh) * 2022-07-08 2024-01-12 界首市天鸿新材料股份有限公司 高功率车用动力锂电池三层共挤隔膜横向拉伸系统

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US2568431A (en) * 1949-04-19 1951-09-18 Congdon Ernest Winding device
US3185402A (en) * 1961-04-19 1965-05-25 Jagenberg Werke Ag Safety means for paper winding machine
GB2103188A (en) * 1981-08-06 1983-02-16 Rank Organisation Ltd Winding film into large firm rolls under controlled tension
DE3412740A1 (de) * 1984-04-05 1985-10-17 Schenke, Helmut, 8561 Happurg Vorrichtung zum umwickeln von grossrollen mit einer kunststoffolie
EP0621184A1 (fr) * 1993-04-23 1994-10-26 Lantech, Inc. Dispositif d'enveloppement à film étirable
WO1995013965A1 (fr) * 1992-05-19 1995-05-26 Saltech Inc. Film a etirer
US5862647A (en) * 1997-11-06 1999-01-26 Mima Incorporated Quick thread wrapping machine stretch head and wrapping film method

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FR2748734B1 (fr) * 1996-05-06 1998-07-31 Thimon Film de suremballage, dispositif d'etirage prealable de film et procede de suremballage
IT1291655B1 (it) * 1997-04-24 1999-01-19 Orizio Paola Spa Apparato tenditore a controllo automatico della tensione di pezze di filato
DE60033868T2 (de) * 1999-06-22 2007-11-08 Fujifilm Corp. Verfahren und Apparat zum Wickeln von Film, Verfahren und Apparat zum Zuführen von Wickelkernen und Verfahren und Apparat zum Kontrollieren des Zustandes von Filmrollen
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Publication number Priority date Publication date Assignee Title
US2568431A (en) * 1949-04-19 1951-09-18 Congdon Ernest Winding device
US3185402A (en) * 1961-04-19 1965-05-25 Jagenberg Werke Ag Safety means for paper winding machine
GB2103188A (en) * 1981-08-06 1983-02-16 Rank Organisation Ltd Winding film into large firm rolls under controlled tension
DE3412740A1 (de) * 1984-04-05 1985-10-17 Schenke, Helmut, 8561 Happurg Vorrichtung zum umwickeln von grossrollen mit einer kunststoffolie
WO1995013965A1 (fr) * 1992-05-19 1995-05-26 Saltech Inc. Film a etirer
EP0621184A1 (fr) * 1993-04-23 1994-10-26 Lantech, Inc. Dispositif d'enveloppement à film étirable
US5862647A (en) * 1997-11-06 1999-01-26 Mima Incorporated Quick thread wrapping machine stretch head and wrapping film method

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US9290282B2 (en) 2003-01-31 2016-03-22 Lantech.Com, Llc Apparatus for securing a load to a pallet with a roped film web
US10173795B2 (en) 2003-01-31 2019-01-08 Lantech.Com, Llc Method and apparatus for securing a load to a pallet with a roped film web
US7568327B2 (en) 2003-01-31 2009-08-04 Lantech.Com, Llc Method and apparatus for securing a load to a pallet with a roped film web
US7707801B2 (en) 2005-04-08 2010-05-04 Lantech.Com, Llc Method for dispensing a predetermined amount of film relative to load girth
US8141327B2 (en) 2005-04-08 2012-03-27 Lantech.Com, Llc Method and apparatus for dispensing an amount of film relative to load girth
US9187193B2 (en) 2005-04-08 2015-11-17 Lantech.Com, Llc Method and apparatus for dispensing an amount of film relative to girth
US7779607B2 (en) 2006-02-23 2010-08-24 Lantech.Com, Llc Wrapping apparatus including metered pre-stitch film delivery assembly and method of using
US8037660B2 (en) 2006-02-23 2011-10-18 Lantech.Com, Llc Method for securing a load to a pallet with a roped film web
US8276346B2 (en) 2006-02-23 2012-10-02 Lantech.Com, Llc Wrapping apparatus and method including metered pre-stretch film delivery assembly
US8276354B2 (en) 2006-02-23 2012-10-02 Lantech.Com, Llc Apparatus for securing a load to a pallet with a roped film web
US9725195B2 (en) 2008-01-07 2017-08-08 Lantech.Com, Llc Electronic control of metered film dispensing in a wrapping apparatus
US9908648B2 (en) 2008-01-07 2018-03-06 Lantech.Com, Llc Demand based wrapping
US9493262B2 (en) 2010-10-29 2016-11-15 Lantech.Com, Llc Machine generated wrap data
US9932137B2 (en) 2012-10-25 2018-04-03 Lantech.Com, Llc Corner geometry-based wrapping
US10005580B2 (en) 2012-10-25 2018-06-26 Lantech.Com, Llc Rotation angle-based wrapping
US10005581B2 (en) 2012-10-25 2018-06-26 Lantech.Com, Llc Effective circumference-based wrapping
US11104464B2 (en) 2012-10-25 2021-08-31 Lantech.Com, Llc Rotation angle-based wrapping of loads with varying dimensions
US11174056B2 (en) 2012-10-25 2021-11-16 Lantech.Com, Llc Load wrapping apparatus with controlled interventions
US11111045B2 (en) 2012-10-25 2021-09-07 Lantech.Com, Llc Dynamic rotation angle-based wrapping
US11111046B2 (en) 2012-10-25 2021-09-07 Lantech.Com, Llc Load wrapping apparatus with rotational data shift
US11407538B2 (en) 2013-02-13 2022-08-09 Lantech.Com, Llc Packaging material profiling for containment force-based wrapping
US9776748B2 (en) 2013-02-13 2017-10-03 Lantech.Com, Llc Containment force-based wrapping
US11912445B2 (en) 2013-02-13 2024-02-27 Lantech.Com, Llc Containment force-based wrapping
US10717554B2 (en) 2013-02-13 2020-07-21 Lantech.Com, Llc Containment force-based wrapping
US10239645B2 (en) 2013-02-13 2019-03-26 Lantech.Com, Llc Packaging material profiling for containment force-based wrapping
US11518558B2 (en) 2013-02-13 2022-12-06 Lantech.Com, Llc Containment force-based wrapping
US11685567B2 (en) 2014-01-14 2023-06-27 Lantech.Com, Llc Dynamic adjustment of wrap force parameter responsive to monitored wrap force and/or for film break reduction
US11597554B2 (en) 2014-01-14 2023-03-07 Lantech.Com, Llc Dynamic adjustment of wrap force parameter responsive to monitored wrap force and/or for film break reduction
US10227152B2 (en) 2014-01-14 2019-03-12 Lantech.Com, Llc Dynamic adjustment of wrap force parameter responsive to monitored wrap force and/or for film break reduction
US10435191B2 (en) 2014-10-07 2019-10-08 Lantech.Com, Llc Projecting containment force for load wrapping apparatus
US10053253B2 (en) 2014-10-07 2018-08-21 Lantech.Com, Llc Graphical depiction of wrap profile for load wrapping apparatus
US10926906B2 (en) 2014-10-07 2021-02-23 Lantech.Com, Llc Load stability-based wrapping
US11505343B2 (en) 2015-09-25 2022-11-22 Lantech.Com, Llc Stretch wrapping machine with automated determination of load stability by subjecting a load to a disturbance
US11034470B2 (en) 2015-09-25 2021-06-15 Lantech.Com, Llc Stretch wrapping machine with automatic load profiling
US11731793B2 (en) 2015-09-25 2023-08-22 Lantech.Com, Llc Stretch wrapping machine with automatic load profiling
US10934034B2 (en) 2015-09-25 2021-03-02 Lantech.Com, Llc Stretch wrapping machine with automated determination of load stability by subjecting a load to a disturbance
US11667416B2 (en) 2017-09-22 2023-06-06 Lantech.Com, Llc Load wrapping apparatus wrap profiles with controlled wrap cycle interruptions
US11208225B2 (en) 2018-08-06 2021-12-28 Lantech.Com, Llc Stretch wrapping machine with curve fit control of dispense rate
US11479378B2 (en) 2019-09-09 2022-10-25 Lantech.Com, Llc Stretch wrapping machine with dispense rate control based on sensed rate of dispensed packaging material and predicted load geometry
US11518557B2 (en) 2019-09-19 2022-12-06 Lantech.Com, Llc Packaging material grading and/or factory profiles

Also Published As

Publication number Publication date
EP1736426A3 (fr) 2007-10-17
ITBO20050413A1 (it) 2006-12-23
US20060289691A1 (en) 2006-12-28

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