EP1295831A1 - Procédé et dispositif de bobinage - Google Patents

Procédé et dispositif de bobinage Download PDF

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Publication number
EP1295831A1
EP1295831A1 EP02256459A EP02256459A EP1295831A1 EP 1295831 A1 EP1295831 A1 EP 1295831A1 EP 02256459 A EP02256459 A EP 02256459A EP 02256459 A EP02256459 A EP 02256459A EP 1295831 A1 EP1295831 A1 EP 1295831A1
Authority
EP
European Patent Office
Prior art keywords
web
reel
core
blade
wrap roller
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Withdrawn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
EP02256459A
Other languages
German (de)
English (en)
Inventor
Keith Fordham
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.)
Ashe Controls Ltd
Original Assignee
Ashe Controls Ltd
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 Ashe Controls Ltd filed Critical Ashe Controls Ltd
Publication of EP1295831A1 publication Critical patent/EP1295831A1/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Withdrawn legal-status Critical Current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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or 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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll

Definitions

  • the invention relates to a method and an apparatus for winding sheet material.
  • Sheet feed materials after processing are required to be wound onto easily managed rolls. These are commonly wound onto cardboard cores of 3" (76mm) I/D (internal diameter) but cores can vary in bore diameter and wall thickness and the material from which they are manufactured.
  • the width of the core is selected to suit the sheet product width and for cosmetic or process purposes it is desirable to have the edges of the sheet material aligned accurately with the edge of the core.
  • Some products are alternatively wound to form a roll with a pre-determined inside diameter with no supporting core and need to be easily removed from the winding mandrel when finished.
  • Typical sheet material products have widths from 30mm to 1600mm, but product widths outside this range do exist.
  • Rewind roll diameters may vary from finished slit rolls of 50mm diameter to bulk rolls of 1000mm diameter and more.
  • Machines are available to do this for slow web speeds, or while the web speed is slowed temporarily, and are generally designed to have multiple rewind shafts mounted on a turret which rotates about a centre point to bring an empty shaft into the running web path and which use a varying array of designs to cross-cut the web and to transfer the material onto the empty shaft while the material is still running.
  • a typical web speed is 200 metres per minute (mpm) but this can vary from a few mpm to 300 mpm. Faster web speeds have been achieved but are unusual.
  • the invention provides a method and an apparatus for winding a sheet material as defined in the appended independent claims. Preferred or advantageous features of the invention are set out in dependent subclaims.
  • the invention operates as follows to wind the running web at the output from a processing or rewinding machine.
  • the running web of sheet material is wound onto a roll.
  • An empty core is arranged at a transfer position to receive the web when the roll is completed.
  • a wrap roller is moved so as to draw the web upstream of the core around a portion of the circumference of the core.
  • a head assembly of a cross-cut mechanism then advances, wrapping the web upstream of the core around the core.
  • a spring loaded blade is then advanced so as to cut the web and to force the end of the web into the inrunning nip between the wrap roller and the core.
  • the head assembly and the wrap roller are then withdrawn to their standby positions and the core moved from the transfer position to a running position while the completed roll is unloaded.
  • the invention may thus provide a winder, or rewinder, in which the output reel onto which the web is wound after processing may be changed on the fly, without stopping or preferably without even slowing down the web of material running through the machine.
  • the invention may also enable this to be done without damaging the end of the web which is guided onto the new reel, for example without either folding, tucking or glueing the end of the web.
  • the invention may allow the web to be wound onto a core, such as a cardboard core, or onto a reel without a core.
  • the web width which can be handled by the method and apparatus of the invention is limited only by the widths of the wrap roller and the cutter.
  • the invention may thus provide flexibility to handle a large range of web widths without retooling.
  • the invention may advantageously avoid any need for folding, tucking or sticking the web to the new reel and minimises the handling of the cut end of the web, and may therefore advantageously be able to handle high web speeds.
  • a preferred embodiment of the invention therefore uses a serrated cross-cut blade actuated by short-stroke springs, which are advantageously sized to accelerate the blade to web speed within a short distance, such as about 4mm of travel. This mechanism and the reloading of the spring energy by resetting the blade and compressing the springs may all be achieved mechanically, allowing a high degree of precision on the blade release position.
  • the cutter, or blade assembly preferably allows the web to run around a small radius with the blade positioned at or slightly downstream from the exit from the radius.
  • Miniature individually-sprung rollers may provide the small radius and apply rolling pressure to the incoming web, urging it against the reel.
  • the pressure should preferably be such that, at the maximum design web tension of the machine with which the winding apparatus is to operate, the friction between the rollers, the web and the reel will continue to feed the web at full tension.
  • the web tension is preferably controlled by driving the reel on which the web is wound. It may therefore be advantageous for full tension to be obtainable as soon as the web starts to be wound on the new reel.
  • Individual loading of the miniature rollers is preferable because it ensures that slit webs with individual cores or webs of different widths can still be processed, allowing for possible dimensional or positioning errors in core sizes etc.
  • FIG. 1 illustrates a winding apparatus according to a first embodiment of the invention.
  • the winding apparatus receives an incoming web 2 of sheet material from a web processing machine such as a printer or rewinder.
  • the web runs over guide rollers 4, 6 and is then wound onto a roll 8.
  • the roll is supported and driven by a shaft 10, which is one of four drivable shafts 10, 12, 14, 16 mounted on a rotating turret 18.
  • the turret is conventional, providing four winding stations at 90° intervals so that successive 90° rotations of the turret move the winding stations between a running position, an offload position, a core load position and a transfer position.
  • the web is wound onto a roll in the running position.
  • the web is cut and winding begins in the transfer position, as described below.
  • the turret is then rotated through 90° to bring the completed roll into the offload position, where it is unloaded.
  • the same rotation brings an empty shaft into the core load position, where a cardboard core is loaded onto the shaft in preparation for movement into the transfer position.
  • Figure 1 also shows a moveable wrap roller 20 in its standby position.
  • the wrap roller is rotatably mounted at the end of a pivoting arm 22.
  • the position of the pivoting arm is controlled by a pneumatic driver 24.
  • the pivot point of the arm and the pneumatic driver are mounted on a translating carriage 26, which is also pneumatically driven.
  • Computer control of the pivot and carriage arm enables substantial flexibility in the control of the position and movement of the wrap roller 20.
  • Figure 1 also shows a cutter, or cross-cut unit, 28 in its standby position. This will be described in more detail below.
  • Figure 2 shows the winding apparatus of figure 1 in a first stage of transferring the web to a new core 30 on the shaft 12 in the transfer position.
  • the actuator 24 is driven to rotate the pivot arm 22 and to draw the wrap roller across the path of the running web. This deflects the web and brings it into contact with the empty core 30.
  • Figure 3 illustrates a further stage in the operation of the embodiment.
  • the carriage 26 is driven by its actuator in order to move the wrap roller past the empty core 30.
  • the pivot arm actuator 24 then extends until the wrap roller contacts the empty core 30. As shown in figure 3, this movement wraps the web around the core 30 as far as possible without the running web upstream of the wrap roller contacting the web which is wrapped around the core.
  • the wrap roller is positioned approximately between the core and the centre of the turret and the web is running at full speed, being wound onto the roll 8 at the running position.
  • FIG 4 illustrates the operation of the cutter 28.
  • Figures 5 to 8 show the cutter and its head assembly 40 in more detail.
  • the cutter comprises a fixed pneumatic driver cylinder 42 from which a rod 44 carrying the head assembly is extendable.
  • the head assembly is also supported by two rods 45 slidable in linear guides 47.
  • the head assembly thus moves so as to pick up the running web between the empty core 30 and the roll 8 and to deflect it towards the inrunning nip between the wrap roller and the empty core.
  • the head assembly When the head assembly is fully extended, as shown in figures 4, 5, 6 and 8, it urges the web against the empty core by means of one or more spring-loaded miniature rollers 46. Downstream from the miniature rollers, the web passes around the end of a small radius nose plate 48 and around a guide roller 50 before running onto the roll 8.
  • the miniature rollers, the nose plate and the guide roller are all carried by the head assembly. At this point, the web is wrapped around a large portion of the circumference of the empty core, such as 300° or more of the circumference.
  • the head assembly 40 also comprises a serrated cross-cut blade 52 which is positioned adjacent the nose plate on its upstream side.
  • the blade extends across the entire width of the web and is arranged to be driven beyond the end of the nose plate to cut the web.
  • the blade is driven by coil springs 54 mounted within the head assembly.
  • Figures 5 and 7 show the blade in its cocked position with the coil springs compressed, with the blade retained by a latch or trigger mechanism 55.
  • the blade trigger is released and the blade is driven forward by the springs so that its edge extends beyond the tip of the nose plate, cutting the web.
  • the springs accelerate the blade rapidly to a speed comparable to that of the running web so that the cut end 58 of the running web is carried with the blade as it moves beyond the nose plate and is guided or forced by the blade into the nip 56 between the empty core and the wrap roller.
  • Figures 5, 6 and 8 show the head assembly with the blade and the driving springs extended.
  • the blade should not touch the wrap roller or the web on the reel, to avoid damaging them, but may come within as little as 1mm of them. At this point, the web completely encircles the empty core and so its cut end is drawn around the core, beneath the subsequent layers of the web being wound onto the core.
  • the head assembly can now be withdrawn to its standby position, as can the wrap roller.
  • the turret is then rotated through 90° so that the new core occupies the running position and the completed roll 8 of web can be unloaded from the offload position.
  • each lever 60 on each side of the blade abuts against a fixed stop 62 and pivots about a pivot point 64.
  • the opposite end 65 of each lever acts on the blade to raise it into the cocked position, compressing the springs.
  • Each trigger comprises an arm 66 which pivots about a pivot point 68.
  • a spring 70 acts on each arm to urge a lower end of the arm 72 to engage and retain the blade automatically when it reaches the cocked position.
  • each blade trigger is operated by contact between the trigger and a stationary stop when the head assembly advances to a predetermined position.
  • Each stop is preferably a cam surface (not shown) which acts on an upper end 74 of each trigger arm to cause the trigger arm to pivot and release the blade.
  • Each stop is preferably adjustable so that the trigger operation can be accurately set.
  • the blade is thus released at an accurately predetermined position at full power, driven by the springs. In a particular embodiment, it accelerates over the first 4mm of its travel to reach its top speed and then travels a further 4mm to cut and push the web into the inrunning nip. Immediately this has happened, the head assembly retracts to its safe, standby position, reloading the springs. The retraction is driven by the pneumatic driver 42, 44 under computer control.
  • the cutting and wrapping of the roll takes a fraction of a second and in practice looks like one continuous movement of advance and retraction of the cutter head assembly.
  • This high speed of operation is advantageous because the cutting operation needs to match the running speed of the web, which may be 200 metres per minute (3.3 metres per second) or more.

Landscapes

  • Replacement Of Web Rolls (AREA)
EP02256459A 2001-09-22 2002-09-18 Procédé et dispositif de bobinage Withdrawn EP1295831A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0122917A GB2379924A (en) 2001-09-22 2001-09-22 Winding method and apparatus
GB0122917 2001-09-22

Publications (1)

Publication Number Publication Date
EP1295831A1 true EP1295831A1 (fr) 2003-03-26

Family

ID=9922563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02256459A Withdrawn EP1295831A1 (fr) 2001-09-22 2002-09-18 Procédé et dispositif de bobinage

Country Status (3)

Country Link
US (1) US20030146334A1 (fr)
EP (1) EP1295831A1 (fr)
GB (1) GB2379924A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1801059A1 (fr) * 2005-12-24 2007-06-27 Fischer & Krecke GmbH & Co. KG Procédé pour découper une bande enroulée sur une bobineuse d'inversement
WO2015067946A3 (fr) * 2013-11-06 2015-07-09 Ashe Controls Limited Procédé et appareil d'enroulement
FR3068341A1 (fr) * 2017-07-03 2019-01-04 Spoolex Dispositif et procede d'enroulage et de transfert d'une bandelette a partir d'une bobine pleine jusqu'a une bobine vide

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20061814A1 (it) * 2006-09-26 2008-03-27 Colines Srl Impianto avvolgitore per impiego in linee di produzione di film plastici,in particolare film plastici estensibili,e metodo di avvolgimento di bobine di film plastici
JP6069020B2 (ja) * 2013-02-20 2017-01-25 リンテック株式会社 シート貼付装置および貼付方法
CN106882620B (zh) * 2017-03-22 2017-10-20 河南亚都实业有限公司 多功能复卷机
CN111054777A (zh) * 2018-10-17 2020-04-24 晟通科技集团有限公司 具有弹性支撑的铸轧卸卷小车
CN111099434B (zh) * 2020-01-15 2021-08-27 朱振伟 一种封边条缠卷自动化设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058267A (en) * 1975-08-02 1977-11-15 Maschinenfabrik Stahlkontor Weser Lenze Kg Web spooling machine
US4153215A (en) * 1977-10-19 1979-05-08 Maschinenbau Greene Gmbh & Co Kg Device for severing and feeding to respective reels a web of material wound in a turn-over type winding machine
EP0944542A1 (fr) * 1996-12-12 1999-09-29 Darlet Marchante Technologie S.A. Machine d'enroulement d'un element plat continu pour former des bobines
US6273356B1 (en) * 1999-04-23 2001-08-14 Holmdale Precision Ltd. Roll rewinding apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058267A (en) * 1975-08-02 1977-11-15 Maschinenfabrik Stahlkontor Weser Lenze Kg Web spooling machine
US4153215A (en) * 1977-10-19 1979-05-08 Maschinenbau Greene Gmbh & Co Kg Device for severing and feeding to respective reels a web of material wound in a turn-over type winding machine
EP0944542A1 (fr) * 1996-12-12 1999-09-29 Darlet Marchante Technologie S.A. Machine d'enroulement d'un element plat continu pour former des bobines
US6273356B1 (en) * 1999-04-23 2001-08-14 Holmdale Precision Ltd. Roll rewinding apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1801059A1 (fr) * 2005-12-24 2007-06-27 Fischer & Krecke GmbH & Co. KG Procédé pour découper une bande enroulée sur une bobineuse d'inversement
US7484685B2 (en) 2005-12-24 2009-02-03 Fischer & Krecke Gmbh & Co. Kg Method for knocking off a web wound on a turret winder
WO2015067946A3 (fr) * 2013-11-06 2015-07-09 Ashe Controls Limited Procédé et appareil d'enroulement
FR3068341A1 (fr) * 2017-07-03 2019-01-04 Spoolex Dispositif et procede d'enroulage et de transfert d'une bandelette a partir d'une bobine pleine jusqu'a une bobine vide
WO2019007585A1 (fr) * 2017-07-03 2019-01-10 Spoolex Dispositif et procede d'enroulage et de transfert d'une bandelette a partir d'une bobine pleine jusqu'a une bobine vide

Also Published As

Publication number Publication date
GB2379924A8 (en) 2003-04-23
GB2379924A (en) 2003-03-26
US20030146334A1 (en) 2003-08-07
GB0122917D0 (en) 2001-11-14

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