EP4219364A1 - Wickler für ein blattprodukt - Google Patents

Wickler für ein blattprodukt Download PDF

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Publication number
EP4219364A1
EP4219364A1 EP22154629.4A EP22154629A EP4219364A1 EP 4219364 A1 EP4219364 A1 EP 4219364A1 EP 22154629 A EP22154629 A EP 22154629A EP 4219364 A1 EP4219364 A1 EP 4219364A1
Authority
EP
European Patent Office
Prior art keywords
reel
product
strips
mobile
diverters
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
EP22154629.4A
Other languages
English (en)
French (fr)
Other versions
EP4219364B1 (de
Inventor
Carlo Comerio
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.)
RODOLFO COMERIO Srl
Original Assignee
RODOLFO COMERIO Srl
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 RODOLFO COMERIO Srl filed Critical RODOLFO COMERIO Srl
Priority to EP22154629.4A priority Critical patent/EP4219364B1/de
Publication of EP4219364A1 publication Critical patent/EP4219364A1/de
Application granted granted Critical
Publication of EP4219364B1 publication Critical patent/EP4219364B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/28—Registering, tensioning, smoothing or guiding webs longitudinally by longitudinally-extending strips, tubes, plates, or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/30—Registering, tensioning, smoothing or guiding webs longitudinally by longitudinally-extending flexible tapes or bands
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • 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
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/448—Diverting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/93—Tyres

Definitions

  • laminates comprising one or more layers of elastomer (denoted "rubber” for simplicity), which are used in industry mainly to make tyre components for vehicles, as well as for other applications such as rubber tracks for agricultural machinery.
  • the sheet products referred to may be either laminated or non-laminated.
  • a laminated product typically comprises a substrate and at least one coating layer, for example a textile substrate and an elastomer coating.
  • a non-laminated product comprises a single layer.
  • Sheet products of particular interest include, or consist of, an elastomer layer.
  • Sheet products can be produced industrially on calendering lines where the product is in the form of a sheet of indefinite length, processed by passing between pairs of rollers with parallel shafts.
  • the width of the sheet in a calendering line can vary depending on the application but typically modern calendering lines are designed for a sheet width of up to about two metres.
  • the sheet is generally wound into reels for storage and shipment to the customer.
  • a calender for sheet products should ideally be able to produce sheets of various widths depending on their intended use.
  • the invention is intended to solve the above-identified problem of winding a longitudinally cut sheet into reels, particularly in the context of elastomer sheets (known as "rubber” sheets) or sheets having an elastomer layer, intended for technical uses such as the production of tyres.
  • the invention addresses the problem of how to wind into reels a sheet product that may arise in the form of two or more parallel strips resulting from longitudinal cutting of a single sheet.
  • the invention addresses the problem of how to wind up a sheet product which may be fed in parallel strips which are close together or virtually in contact, typically as a result of longitudinal cutting into two or more strips from a single sheet.
  • the idea behind the invention is to provide two reels and alternately direct the product strips to one or the other reel. This is achieved by providing a group of mobile diverters upstream of the reels.
  • a major advantage of the invention is to manage the winding of parallel strips with only two winding shafts, since the strips are alternately directed to one and the other reel.
  • a winder with a small footprint but capable of accepting and handling a plurality of strips is obtained.
  • the winder can be configured to manage inputs represented by strips of varying numbers and widths according to production requirements.
  • the machine can be equipped with a control system to select a desired production mode and:
  • the mobile diverters of the winder are arranged adjacently to form a row or array transverse to a direction of transport of the strips.
  • said transport direction coincides with a longitudinal direction of the line.
  • the mobile diverters are accordingly arranged adjacently in the direction of the width of the sheet.
  • the mobile drawing-in means form an array arranged transversely to a direction of transport of the strips and are configured such that each strip is intercepted by at least one of the mobile drawing-in means and directed to the first reel or to the second reel, and such that adjacent strips are directed to different reels.
  • the winder further comprises a device for aligning the diverters in the direction of the sheet width.
  • said device is capable of displacing the mobile diverters individually and selectively in the direction of the sheet width.
  • Said device enables the mobile diverters to be precisely aligned with the product strips, depending on the selected working mode, i.e. the number, width and position of the strips.
  • Transverse alignment can also be controlled automatically by the winder control system. Thanks to the transverse alignment control, the diverters (individually or in groups) can correctly intercept the product strips and correctly divert or draw them into the reels.
  • the transverse displacement and/or the transition from the first to the second setup can be carried out manually.
  • the winder comprises, for each reel, at least one optical reader arranged to detect an outer edge position of the sheet or group of sheets directed to the respective winder.
  • each reel receives a single strip or a series of strips that can be positioned in various ways along the winding shaft, depending on the production method. For example, the strips could occupy a central or lateral area of the reel itself.
  • the invention enables a wrap of the appropriate width to be used and positioned correctly to ensure that all strips of product rest on the wrap.
  • Another aspect of the invention is a machine or line for the continuous production, by calendering, of a laminated sheet product, comprising at least one winder as described above.
  • the longitudinal cutting station may comprise a plurality of blades, for example circular blades, selectively positionable along the width extension of the sheet.
  • the blades are mounted on carriages sliding along a support.
  • each blade is advantageously displaceable between an active cutting position and a raised position in which it does not interact with the product. In this way, the arrangement of the blades determines the number and width of the strips generated by cutting.
  • appropriate cutting systems can be adopted, for example pressure blades or shear knives.
  • the winder can be integrated into the calendering machine. Preferably, however, it is an extractable component that can be removed from the machine, so as to be able to carry out "off-line” the operations that become necessary when the reel has reached its maximum diameter ("full" reel), i.e. removal of the full reel that will be transferred to storage, replacement of the reel, etc. Once prepared for a new winding cycle, the winding can be repositioned in line.
  • a machine comprises two separate winders and a device for selectively feeding the product to only one of the two winders, in order to maintain the continuity of the production process during the above-mentioned resetting operations of the full winder.
  • the invention is applicable to sheet products of various compositions.
  • one application of the invention which is of interest relates to sheets of elastomeric material for industry (known as rubber sheets) or laminated sheets comprising a support, such as a fabric, coated or spread with an elastomeric layer.
  • Fig. 1 shows a portion of a calendering line in which a sheet product S is cut longitudinally into crosswise parallel strips in a longitudinal cutting station 300 comprising a plurality of blades 301-305, for example circular blades pressed against a counter cylinder 311.
  • the product is located on a conveyor belt 1.
  • the arrow L indicates the longitudinal direction of transport of the product.
  • the transverse direction (sheet width) is understood to be perpendicular to the plane of the figure.
  • the product indicated by the symbol S can therefore be represented by many strips running adjacently on the belt 1.
  • a rotary knife 2 arranged to perform cross cuts of the continuously fed product strips S, obtaining strips P having a width which is determined by the previously performed cutting into strips, and an end-of-reel length which is determined by the action of the rotary knife 2.
  • the strips P run parallel and close together, substantially virtually in contact with each other, slightly spaced by a pair of spreading cylinders 321.
  • a chute 3 allows the strips P to be directed to an underlying first winder 100 or onto another conveyor belt 4 leading to an identical second winder, not shown.
  • the presence of a second winder provides redundancy for the winding system that allows production not to be interrupted when one of the two winders is full and needs to be replaced.
  • the winder 100 is configured to wind the strips of sheet material, separately forming a first reel 101 and a second reel 102. In both reels 101 and 102, the strips are wound with interposition of a service fabric 210, 220 taken continuously from reels 201, 202.
  • Reels 101, 102 wind and reels 201, 202 unwind on respective spools 131, 132 and 231, 232.
  • the service fabric is transported by two pairs of pulling cylinders 241, 242 and is guided by a series of diverting cylinders to the respective spool/reel for winding the sheet.
  • the winder 100 includes a set of mobile drawing-in means 103 which are selectively positionable to draw in the strips P towards the reel 101 or towards the reel 102.
  • the mobile drawing-in means 103 are located in a central head area of the winder 100, thus being located in the middle, and in an elevated position, with respect to the spools 131, 132 of the product reels 101, 102.
  • the mobile winders 103 are also aligned to form a row in the direction transverse to the line, i.e. the direction perpendicular to the plane of Fig. 1 .
  • Each of the mobile drawing-in means 103 is essentially a belt conveyor which is controllably inclinable forwards towards the reel 102 or backwards towards the reel 101.
  • Each strip P is accommodated by a respective individual or group of drawing-in means, depending on the configuration of the winder 100 and the width of the strips P relative to the width of the drawing-in means 103.
  • the mobile drawing-in means 103 By suitably arranging the mobile drawing-in means 103 in an alternating configuration, the flow of parallel strips P is alternately distributed between the two reels 101 and 102.
  • Fig. 1 it can be seen that, for example, the drawing-in means 103A is inclined backwards so as to run towards the reel 101, while the drawing-in means 103B is inclined forwards so as to run towards the reel 102.
  • the winder 100 is able to distribute the incoming flow of product between the two reels.
  • the product strips are spaced apart (unlike belt 1 where they are almost in contact) and can therefore be easily unwound and separated for use.
  • the assembly of drawing-in means 103 embodies a system of selective drawing-in means.
  • the drawing-in means 103A comprises a belt 104 with internal toothing 105 and a support 106 pneumatically rotatable about a central shaft 107.
  • the entire body of the drawing-in means 103A is pivoted about said shaft 107 between a setup inclined towards the reel 101 and a setup inclined towards the reel 102.
  • the other drawing-in means are similarly embodied, each comprising a conveyor belt and a structure inclinable about said shaft 107.
  • the drawing-in means 103B is inclined towards the reel 102.
  • the winder includes two counter-rotating drive shafts 108, 109 which have external toothing capable of meshing with the internal toothing 105 of the belts.
  • Each of the drawing-in means 103 according to the inclined position towards the reel 101 or 102, has the toothed belt 104 meshing with one of said two drive shafts, so as to have a direction of feed suitably directed towards the receiving reel.
  • the drawing-in means 103A has a direction of feed V1 such that the strips P falling on the belt 104 of said drawing-in means 103A are led towards the reel 101; the drawing-in means 103B has an opposite direction of feed V2 in order to run towards the reel 102.
  • line 110 indicates the trajectory of the sheets towards reel 101; it should be noted that the sheets meet the service fabric 210; similarly, line 120 indicates the trajectory of the sheets towards reel 102.
  • lines 210 and 220 indicate the trajectories at the beginning of the reel, while lines 211, 221 indicate the trajectories for an almost complete reel i.e. close to the maximum diameter.
  • the winder 100 is advantageously extracted from the line to remove the full reels.
  • the chute 3 ( Fig. 1 ) is raised to direct the sheets, via the belt 4, towards the other winder identical to the winder 100 described so far. Thanks to the presence of two winders, the line can continue to produce without interruption.
  • a line comprising a cutting station 300 comprising a series of blades 301 to 305.
  • a rotary knife 2 is located downstream of the cutting station 300.
  • the drawing-in means 103-1 to 103-5 are all arranged in the setup to run towards the reel 102, i.e. inclined towards said reel 102.
  • Said drawing-in means 103-1 to 103-5 form a group arranged to intercept the strip W1 and wind it into said second reel 102.
  • Subsequent drawing-in means 103-6 to 103-10 are inclined towards first reel 101 and, accordingly, direct the strip W2 towards said reel 101.
  • the arrows marked in Fig. 3 on the drawing-in means 103 indicate the direction of transport of the respective belts 104.
  • the drawing-in means 103-1 to 103-5 pull the strip W1 forwards towards the reel 102, the remaining drawing-in means 103-6 to 103-10 push the strip W2 backwards towards the reel 101.
  • Fig. 3 also shows a preferred way of adjusting the position of the service wraps 210 and 220.
  • the operator has to correctly position said two service wraps so that they are aligned with the position of the sheets running towards the two reels 101 and 102 respectively.
  • the position of the outer edge that the wraps must adopt is signalled optically, for example with a laser pointer mounted on an appropriate carriage mobile in the transverse direction T.
  • References 215 and 225 in Fig. 3 represent the laser spots that appear automatically signalled on the edge of the reels of wraps, once the position of the knives 301-305 has been set on the control desk.
  • Fig. 4 is graphically similar to Fig. 3 and represents another machine setup in which the blades 302 and 304 cut the product sheet into three strips indicated as W1, W2, and W3. The remaining blades are raised and do not act.
  • the drawing-in means 103 are configured accordingly in three groups: a first group 103A comprising drawing-in means 103-1, 103-2 and 103-3 leads the strip W1 towards the reel 101; a second group 103B formed by drawing-in means 103-4 to 103-7 leads the strip W2 towards the reel 102; a third group 103C formed by the last three drawing-in means 103-8, 103-9 and 103-10 leads the strip W3 towards the reel 101.
  • FIG. 4 and Fig. 5 the drawing-in means 103 are not shown individually; however, the same notation as in Fig. 3 , i.e. references 103-1 to 103-10, is used to identify the drawing-in means belonging to the array.
  • the first reel 101 receives the two side product strips W1 and W3; the second reel 102 receives the central strip W2.
  • the alternating drawing-in between the two reels such that adjacent strips (for example strips W1 and W2, or strips W2 and W3) are always directed to two different reels, should be noted.
  • a full-width reel 101 will be formed on the winder 100 which contains within it the two spaced apart strips W1 and W3, and a reduced width reel 102 equal to the central strip W2.
  • Fig. 6 shows a group comprising the drawing-in means 103-6 to 103-10 in plan view. Said Fig. 6 reveals that the drawing-in means form an array transverse to the direction of transport of the product, and can be arranged to intercept different strips of product (obtained from longitudinal cutting of the sheet) and selectively and alternately draw them in towards the reel 101 or 102.

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  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
EP22154629.4A 2022-02-01 2022-02-01 Wickler für ein blattprodukt Active EP4219364B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22154629.4A EP4219364B1 (de) 2022-02-01 2022-02-01 Wickler für ein blattprodukt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22154629.4A EP4219364B1 (de) 2022-02-01 2022-02-01 Wickler für ein blattprodukt

Publications (2)

Publication Number Publication Date
EP4219364A1 true EP4219364A1 (de) 2023-08-02
EP4219364B1 EP4219364B1 (de) 2024-07-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22154629.4A Active EP4219364B1 (de) 2022-02-01 2022-02-01 Wickler für ein blattprodukt

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2621915A1 (de) * 1975-06-19 1976-12-30 Simon Container Mach Ltd Bahnzufuehrvorrichtung
US4093141A (en) * 1977-06-02 1978-06-06 Coil Tite, Inc. Recoiler spacer shooter
GB1546789A (en) * 1976-05-28 1979-05-31 Simon Container Mach Ltd Web feeding apparatus
EP0887296A2 (de) * 1997-06-27 1998-12-30 Voith Sulzer Finishing GmbH Rollenschneidvorrichtung
EP0890538A1 (de) * 1997-07-10 1999-01-13 Voith Sulzer Finishing GmbH Rollenschneider
US20050224205A1 (en) * 2003-11-22 2005-10-13 Bhs Corrugated Maschinen-Und Anlagenbau Gmbh Shunt for a web divided into several sectional webs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2621915A1 (de) * 1975-06-19 1976-12-30 Simon Container Mach Ltd Bahnzufuehrvorrichtung
GB1546789A (en) * 1976-05-28 1979-05-31 Simon Container Mach Ltd Web feeding apparatus
US4093141A (en) * 1977-06-02 1978-06-06 Coil Tite, Inc. Recoiler spacer shooter
EP0887296A2 (de) * 1997-06-27 1998-12-30 Voith Sulzer Finishing GmbH Rollenschneidvorrichtung
EP0890538A1 (de) * 1997-07-10 1999-01-13 Voith Sulzer Finishing GmbH Rollenschneider
US20050224205A1 (en) * 2003-11-22 2005-10-13 Bhs Corrugated Maschinen-Und Anlagenbau Gmbh Shunt for a web divided into several sectional webs

Also Published As

Publication number Publication date
EP4219364B1 (de) 2024-07-03

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