CA2551795A1 - Double unwinder unit for rolls of sheet-like material provided with a device for splicing the sheets being unwound - Google Patents

Double unwinder unit for rolls of sheet-like material provided with a device for splicing the sheets being unwound Download PDF

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Publication number
CA2551795A1
CA2551795A1 CA002551795A CA2551795A CA2551795A1 CA 2551795 A1 CA2551795 A1 CA 2551795A1 CA 002551795 A CA002551795 A CA 002551795A CA 2551795 A CA2551795 A CA 2551795A CA 2551795 A1 CA2551795 A1 CA 2551795A1
Authority
CA
Canada
Prior art keywords
plane
symmetry
cylinders
cylinder
splicing
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.)
Granted
Application number
CA002551795A
Other languages
French (fr)
Other versions
CA2551795C (en
Inventor
Tommasi Renzo
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.)
Rent SRL
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2551795A1 publication Critical patent/CA2551795A1/en
Application granted granted Critical
Publication of CA2551795C publication Critical patent/CA2551795C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
    • B65H19/1836—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being accelerated or running prior to splicing contact
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4615—Processing webs in splicing process after splicing
    • B65H2301/4617—Processing webs in splicing process after splicing cutting webs in splicing process
    • B65H2301/46174—Processing webs in splicing process after splicing cutting webs in splicing process cutting both spliced webs separately
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4632—Simultaneous deformation of the two web ends
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers
    • B65H2301/464145—Splicing effecting splice by nipping rollers at least one of the rollers having additional feature, eg. knife or at least partly non-cylindrical shape
    • 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
    • B65H2301/515—Cutting handled material
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • B65H2301/51512—Cutting handled material transversally to feeding direction using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the handled material

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Unwinding Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

Unwinder unit for rolls (B1, B2) of sheet-like material (M), comprising a pair of unwinder shafts (1, 2) for respective rolls, arranged on opposite sides of a plane of symmetry (X) and suitable for feeding the material onto said plane and beyond it to an equipment downstream. The unit comprises a device (8) for splicing the tail end of a roll being unwound from one of said shafts to the leading end of a new, full roll installed on the other shaft, the device in turn having a configuration symmetrical to the plane of symmetry (S) and comprising a pair of splicing cylinders (11, 12), arranged on either side of the plane of symmetry (X), revolving around their respective axes and capable of moving closer together and further away from each other, the position in which they come closest coinciding with a condition of mutual contact; groups of suction holes (113) formed in lines along generatrices of the splicing cylinders (11, 12), for withholding the material against the cylinders and deviating it away from the plane of symmetry (X); first cutting means (13) for cooperating with the cylinders downstream of the area of mutual contact to cut the material withheld against the cylinder along a generatrix, second cutting means (24), arranged upstream; and means for controlling the cylinders, capable of synchronizing their rotation with the speed at which the material (M) is unwound.

Claims (12)

1. Unwinder unit for rolls (B1, B2) of sheet-like material, comprising a pair of unwinder shafts (1, 2) for respective rolls, lying on either side of a plane of symmetry (X) of the unit in order to feed said material onto said plane of symmetry (X) and beyond the same plane to equipment arranged downstream, said unit also comprising a device (8) for splicing a tail end of a running-out roll (B1) unwinding from one of said shafts (1), to a leading end of a new, full roll (B2) arranged on the other shaft (2), the unit being characterized in that said device (8) has a symmetrical configuration with respect to said plane of symmetry and comprises: a pair of splicing cylinders (11, 12), arranged on opposite sides of said plane of symmetry, revolving around their own respective axes and displaceable close to and away from each other, the close position corresponding to a condition of mutual contact, with a certain degree of pressure, on said plane of symmetry; drive means (26, 27, 30) for driving the rotation and the displacement of said cylinders; groups of aligned suction holes (113) formed along respective generatrices of said cylinders, for retaining said material on the cylinders and deviating it away from said plane of symmetry; in each cylinder (11), first cutting means (13) cooperating with a cylinder (11), downstream of the area of contact with the other cylinder (12), to transversely cut the material retained on the cylinder (11) along a generatrix thereof, and second cutting means (24), arranged upstream, in turn for cutting said material transversely; and control means for controlling said drive means (26, 27, 30) in order to synchronize the movement of the cylinders with the speed at which said material is unwound from said rolls (B1, B2).
2. The unit according to claim 1, wherein said plane of symmetry (X) is substantially vertical, separating said unwinder shafts (1, 2) and the splicing cylinders (11, 12) of said splicing device (8), all of which arranged with horizontal axes, deviating means (20, 22, 9) being provided to deviate said material in order to feed it into said device (8) from above along said plane of symmetry (X), and then deviate it horizontally downstream of the device (8) below one of said unwinder shafts (1, 2).
3. The unit according to claim 2, wherein said first cutting means (13, 14) include, for each cylinder (11), a first cutter (13) lying underneath the cylinder, radially pressing against it along a generatrix thereof, a deviating roller (15) cooperating tangentially with said cylinder (11) to deviate the material released by the cylinder (11) downstream of said cutter (13) away from said plane of symmetry (X).
4. The unit according to claim 3, wherein, underneath said first cutter (13) and said deviating roller (15), collector means (17) are arranged for collecting the material cut by the cutter (13), said collector means (17) being removable from the unit.
5. The unit according to any of the claims from 2 to 4, wherein said second cutting means (24) comprise, in each cylinder (11), a second cutter (24) arranged above the cylinder (11) for cutting said material in cooperation with a counter-cutting bar (31).
6. The unit according to claim 5, wherein said second cutter (24) is arranged between two rollers (20, 22) of said deviating means, said rollers comprising a main roller (20) substantially tangent to said plane of symmetry (X) and an auxiliary roller (22) placed upstream, further away from said plane of symmetry (X).
7. The unit according to any of the claims from 2 to 6, wherein said cutters (13, 14, 24, 25) each comprise a cutting disc (13a) mounted slidingly on a guide (13b) extending along the corresponding cutting line of the material.
8. The unit according to any of the previous claims, wherein said suction holes (113) communicate with inner axial channels (114), which are open at least at one axial end of the relevant cylinder (11) in order to communicate with suction means arranged externally, the opening of said channel (114) being obstructed by distributor means (115) for timing the suction force in order to control the retaining/release of the material by the cylinder (11).
9. The unit according to claim 8, wherein said distributor means (115) comprise at least one flange (115) arranged at a shoulder face of the cylinder (11), and a distributor passage (115b) formed in said flange (115) along an arc of the circular trajectory of said axial channels (114), said passage (115b) communicating with the outside of the flange (115) via a suction inlet (115c) for said suction means.
10. The unit according to any of the previous claims, wherein a separating screen (19) lies on said plane of symmetry (X) in order to separate the two symmetrical parts of said splicing device (8) above said splicing cylinders (11, 12).
11. The unit according to any of the previous claims, wherein the working surfaces of said splicing cylinders (11, 12) are slightly corrugated, so that longitudinal ridges are generated in order to reduce the contact surface area when the cylinders come into contact with each other.
12. The unit according to any of the previous claims, wherein said second cutting means (24, 25) are mounted according to an adjustably movable arrangement.
CA2551795A 2003-11-28 2004-11-25 Double unwinder unit for rolls of sheet-like material provided with a device for splicing the sheets being unwound Expired - Fee Related CA2551795C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITFI2003A000301 2003-11-28
IT000301A ITFI20030301A1 (en) 2003-11-28 2003-11-28 DOUBLE UNWIND UNIT FOR MATERIAL COILS IN
PCT/IT2004/000653 WO2005051817A1 (en) 2003-11-28 2004-11-25 Double unwinder unit for rolls of sheet-like material provided with a device for splicing the sheets being unwound

Publications (2)

Publication Number Publication Date
CA2551795A1 true CA2551795A1 (en) 2005-06-09
CA2551795C CA2551795C (en) 2012-04-03

Family

ID=34631152

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2551795A Expired - Fee Related CA2551795C (en) 2003-11-28 2004-11-25 Double unwinder unit for rolls of sheet-like material provided with a device for splicing the sheets being unwound

Country Status (14)

Country Link
EP (1) EP1694592B8 (en)
AT (1) ATE501074T1 (en)
CA (1) CA2551795C (en)
DE (1) DE602004031761D1 (en)
DK (1) DK1694592T3 (en)
ES (1) ES2363275T3 (en)
HR (1) HRP20110422T1 (en)
IT (1) ITFI20030301A1 (en)
PL (1) PL1694592T3 (en)
PT (1) PT1694592E (en)
RS (1) RS51997B (en)
RU (1) RU2372270C2 (en)
SI (1) SI1694592T1 (en)
WO (1) WO2005051817A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2969589B1 (en) * 2010-12-24 2013-10-18 Additif DEVICE FOR REINFORCING REINFORCING BOBINE OF STRIP MATERIAL.
KR101466347B1 (en) * 2013-11-06 2014-11-27 도레이첨단소재 주식회사 Easily Removable Paper Tube, Article and Method of Successively Using Article Using the Same
CN103738760B (en) * 2013-12-23 2016-09-28 江阴东恒新材料科技有限公司 The blowing of a kind of coiled material and coil replacing mechanism
PT2969871T (en) * 2014-05-14 2017-03-23 Philip Morris Products Sa Apparatus and method for combining tobacco sheets
US11267669B2 (en) * 2017-03-22 2022-03-08 Philip Morris Products S.A. Method to remove an adhesive label from a bobbin and apparatus to detach an adhesive label from an end portion of a coiled sheet in a bobbin
CN110621599A (en) * 2017-05-19 2019-12-27 菲利普莫里斯生产公司 Method and apparatus for feeding and splicing sheets of material wound in rolls
EP3453660B1 (en) * 2017-09-07 2020-12-02 Sidel Participations Method for splicing webs
CN107837145A (en) * 2017-11-01 2018-03-27 李阅 A kind of medical quick ravel cloth apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190475A (en) * 1978-05-16 1980-02-26 Marquip, Inc. Paper roll web splicing
US4450039A (en) * 1982-08-23 1984-05-22 Harris Graphics Corporation Web splicing apparatus
DE4139586C2 (en) * 1991-11-30 1995-04-27 Roland Man Druckmasch Method and device for forming and detecting a start of the path of a replacement winding roll
DE4141242A1 (en) * 1991-12-14 1993-06-17 Roland Man Druckmasch METHOD AND DEVICE FOR PREPARING THE BEGINNING OF A REPLACEMENT REEL FOR THE FLYING REEL CHANGE
US5975457A (en) * 1998-03-09 1999-11-02 Forbes; Thomas J. Web feeding systems

Also Published As

Publication number Publication date
ITFI20030301A1 (en) 2005-05-29
RU2372270C2 (en) 2009-11-10
ATE501074T1 (en) 2011-03-15
WO2005051817A1 (en) 2005-06-09
DK1694592T3 (en) 2011-06-20
RU2006123021A (en) 2008-01-20
EP1694592A1 (en) 2006-08-30
EP1694592B8 (en) 2012-03-21
PT1694592E (en) 2011-06-27
CA2551795C (en) 2012-04-03
RS51997B (en) 2012-04-30
ES2363275T3 (en) 2011-07-28
HRP20110422T1 (en) 2011-07-31
PL1694592T3 (en) 2011-10-31
EP1694592B1 (en) 2011-03-09
SI1694592T1 (en) 2011-07-29
DE602004031761D1 (en) 2011-04-21

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EEER Examination request
MKLA Lapsed

Effective date: 20151125