EP0846080A1 - Separating device for winding devices for material webs, longitudinally divided into several partial webs - Google Patents
Separating device for winding devices for material webs, longitudinally divided into several partial websInfo
- Publication number
- EP0846080A1 EP0846080A1 EP96921984A EP96921984A EP0846080A1 EP 0846080 A1 EP0846080 A1 EP 0846080A1 EP 96921984 A EP96921984 A EP 96921984A EP 96921984 A EP96921984 A EP 96921984A EP 0846080 A1 EP0846080 A1 EP 0846080A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support frame
- rolls
- separating device
- stand
- axis
- 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
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
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
- B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
- B65H23/0258—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a bowed axis
Definitions
- the invention relates to a separating device for winding devices for material webs, longitudinally divided into several partial webs, particularly those made of paper or the like, with the characteristics of the preamble of Claim 1.
- so-cal ⁇ led duo roll spreaders In order to improve the web separation in so-called reel cutters after the cutting station, it is known to use so-cal ⁇ led duo roll spreaders.
- two conventional so ⁇ called rotary stretchers are involved, i.e., rolls whose axis (and hence also their surface) ist curved.
- the height of the arc i.e., the radius of the deflection line, is adjusted to the particular application.
- Both rotary stretchers (also se ⁇ veral rotary stretchers are possible) are arranged essentially parallel to each other and the planes spanned by the deflec- tion lines are arranged essentially parallel to each other for the purpose of archieving a flawless functioning. Additional conditions for a flawless functioning are that the planes, spanned by the deflection lines, are always at a right angle to the entering or exiting web and the arcs, formed by the rotary stretchers, point in the same direction.
- the extent of the total separation of all partial webs that can be achieved is a constant value for the respective initial situation.
- the spacing gaps that are realizable between them in a certain initial situation become increasingly smaller.
- the extent of the achievable separation - on the one hand depends on the radius of the deflection line of the rotary stretchers. The greater the deflection, i.e., the smal- Ier the deflection radius, the greater the separation.
- the extent of the separation depends on how far
- the web entering the separating device is distan ⁇ ced from the web exiting the separating device perpendicular to the direction of advance of the web.
- a generic separating device is known from EP 0 431275 A2 comprising a regulation mechanism which is fitted to correct the directional angles between the rolls and the web to desi ⁇ red values, preferably 90°, by means of rods being swiftable around their endportions and a swing mechanism, which is fit- ted to act upon the rolls to alter the deflection angles of the webs.
- the objective of the invention is to render the subsequent adjustment of the arcs a generic separa- ting device avoidable.
- the objective is accomplished by a separating device with the characteristics of Claim 1.
- the invention is based on the basic concept that through a sweep of the support frame of the two rotary stretchers, the arc alignment of the rotary stretchers is necessarily adjusted with respect to the entering or exiting web. Thereby, any type of subsequent alignment of the arcs of the rotary stretchers in the separating device is completely eliminated.
- Figure 1 shows a perspective basic representation of a generic separating device
- Figure 2A/B shows a first embodiment in different operating positions of the separating device in frontal view (schematic)
- Figure 3A/B shows a second embodiment in the same type of representation
- Figure 4A/B shows a third embodiment in the same type of representation.
- two rolls 1, 2, forming a roll pair are arranged with axial alignment parallel to one other in a support frame 9.
- the rolls 1, 2 are rotatably mounted in the support frame 9 in a manner wherein they can be freely turned or driven about their respective axes of rotation 21 or 22.
- Both roll axes are bowed with essentially the same deflection radius.
- the deflection lines of the axes of rotation 21 and 22 are indicated in Figu- re 1 with Bl and B2, respectively.
- Both deflection lines - described in the subsequent text also as arcs - span a plane, wherein the plane, spanned by the arc Bl, is aligned at a right angle with respect to the entering web and the plane, spanned by the arc B2 is at a right angle to the exiting web.
- the material web 30, guided between both rolls 1 and 2 is longitudinally divided into partial webs 30', 30'' ... .
- the entering partial webs extend side-by-side partically in a gapless manner parallel to each other
- the exiting partial webs are distanced from each other by means of mutual spacing gaps G', G'', ... and in turn extend parallel to each other. Due to the fact that the entering partial webs are guided across the inner arc of the roll 1, the partial webs between the rolls 1 and 2 do not extend in a parallel arrangement, but in a fanned out configuration.
- the separating devi ⁇ ce 100 for winding devices for material webs 30, that are longitudinally divided into several partial webs, as represen ⁇ ted in the examples, has two rolls 1 and 2 of a roll pair 1, 2, which are flexed essentially in the same direction.
- the rolls 1 and 2 are rotatably arranged with spherical bearings in a support frame 9 such that the roll surface can be rotated about the respective axis of rotation 21 or 22 either freely or possibly in a driven manner.
- the crown of the arcs of the two rolls 1 and 2 which is indicated in the drawing by means of the associated radius vector A or B, does not change its direction in space during the rotation of the roll surface about the respective axis 21 or 22.
- the support frame 9, carrying the two rolls 1 and 2 in a rotatable manner can be pivoted on a stand 10 or a pair of stands about a central swivelling axis 7 which extends parallel to the rolls 1 and 2.
- the rotatably arranged support frame, located at the other front face which is opposite the observer, is shown while the support frame, which is near the observer, has been omitted in order to pro ⁇ vide an unobstructed view of the transmission near the obser ⁇ ver.
- the material webs 30 extend in a straight line between a roll 34, arranged in the inlet area and a roll 32 assigned to the outlet area.
- the entering web touches the roll 1 merely at the two outer edges of the material web, i.e, near the two front ends of the roll 1.
- the exiting web touches the rotary stretcher 2 which is second in the direction of advance of the web only at its peak.
- the webs of material remain completely uninfluenced by the pair of rotary stretchers - a separation does not take place.
- the support frame 9 were to be turned clockwise.
- the crown vector A of the first rotary stretcher 1 encloses a 90° angle with respect to the entering web.
- the exiting web also encloses an angle of 90° with respect to the crown vector B of the second rotary stretcher 2.
- each embodi ⁇ ment at least one pair of transmissions is provided, which effects a simultaneous, automatic twisting of the deflection lindes Bl and B2 with respect to the crown vector A or B of the flexed rolls 1 and 2 during a horizontal sweep of the support frame 9 with respect to the stand 10 such that the transmissions are necessarily operated by means of the sweep movement of the support frame 9. Therefore, with the examples shown and preferred so far in the drawing, the stand 9 is re ⁇ spectively a part of at least the one pair of transmissions.
- one transmission each consisting of the structural components 3, 5 and 8, is arran ⁇ ged between the swivelling axis 7 of the support frame 9 and the axis of rotation 21 of the first rotary stretcher 1.
- the other transmission consists of the structural components 8, 6 and 4 and is effective between the swivelling axis 7 of the support frame 9 and the axis of rotation 22 of the second rotary stretcher 2. It is also possible to provide a pair of transmissions at each of the two front ends of the roll. Howe- ver, as a rule, it is sufficient and is shown in the three examples, that the one transmission (transmission 3, 5, 8) be provided at the one front end of the roll and the other trans ⁇ mission (transmission 8, 6, 4) be provided at the opposite front end.
- an adjustment lever 3A or 4A is arranged without rotatio ⁇ nal play.
- the one pivot point of each of the adjustment levers 3A or 4A coincides with the axis of rotation 21 or 22.
- a lug for the pivotable at ⁇ tachment of a steering device or of a pressure/slide rod 5A or 6A is provided at the other pivot point.
- the respectively other end of these pressu ⁇ re/slide rods 5A and 6A is rotatably connected to the lug of another lever 8A.
- This lever 8A is fixed with respect to the stand 10 and is rotatable with respect to the support frame 9.
- This transmission functions in the following manner: If the support frame 9 is turned, for example, starting from the operating postion shown in Figure 2A into the operating posi ⁇ tion shown in Figure 2B counterclockwise about the swivelling axis 7, effective between the support frame 9 and the stand 10, then the axes of rotation 21 and 22 of the rotary stret ⁇ chers 1 and 2 are also displaced counterclockwise with respect to the swivelling axis 7.
- the paths covered at that time by the axes of rotation 21 or 22 are equal in length, because in the example shown and, in that sense, preferred according to the invention, the swivelling axis 7 is arranged in the middle of the connection line between the axes of rotation 21 and 22.
- the trans- missions of each transmission pair are realized by respective ⁇ ly two wheels 8B and 3B, as well as a belt or a chain 5B, which continuously runs around both transmission wheels.
- the gearwheel 8B ist held unturnable with respect to the stand 10. Its axis is coaxially aligned with the swivelling axis 7 of the support frame 9.
- the gearwheel 3B and gearwheel 4B not visible in the drawing, at the other front end of the roll is arranged with respect to the crown vector A or B of the first or second rotary stretcher in a position which is fixed with regard to the respecitve axis of rotation 21 and 22.
- this transmission arrangement causes the crown vectors A or B of the two rotary stretchers 1 and 2 to be turned in the opposite direction with respect to the stand 10, with the transmission layout again being selected such that the 90°-condition is maintained in all swivel positions of the support frame 9.
- a transmission wheel 8C in accordance with the manner in the example according to Figure 3A/B, is fixed with respect to the stand 10 and is attached coaxially to the swivelling axis 7 of the support frame 9.
- the gearwheel 3C arranged coaxially to the axis of rotation 21 of the first rotary stretcher, and the gearwheel 4C, not visible in the drawing, at the other front end of the roll, as in the embodiment according to the Figures 3A/B, is arranged in a fixed manner with the arc, i.e., the crown vector A or B of the first or second rotary stretcher.
- toothed wheel 5C or 6C which is rotatably mounted at the free end of a one-armed lever 5D or 6D.
- the le ⁇ vers 5D or 6D are attached in a fixed manner at their other end coaxially to the swivelling axis 7 at the support frame 9.
- the transmission wheel 5C or 6C may be provided directly at the support frame 9 in a rotatable manner.
- the gearwheel 5C or 6C engages the ge- arwheel 8C as well as the gearwheel 3C or 4C of the accompany ⁇ ing transmission.
Landscapes
- Replacement Of Web Rolls (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Treatment Of Fiber Materials (AREA)
- Winding Of Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29509516U | 1995-06-14 | ||
DE29509516U DE29509516U1 (en) | 1995-06-14 | 1995-06-14 | Separating device for winding devices for material webs that are longitudinally divided into several partial webs |
PCT/EP1996/002563 WO1997000222A1 (en) | 1995-06-14 | 1996-06-14 | Separating device for winding devices for material webs, longitudinally divided into several partial webs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0846080A1 true EP0846080A1 (en) | 1998-06-10 |
EP0846080B1 EP0846080B1 (en) | 1999-11-10 |
Family
ID=8009169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96921984A Expired - Lifetime EP0846080B1 (en) | 1995-06-14 | 1996-06-14 | Separating device for winding devices for material webs, longitudinally divided into several partial webs |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0846080B1 (en) |
JP (1) | JPH11507615A (en) |
AT (1) | ATE186520T1 (en) |
AU (1) | AU6303096A (en) |
BR (1) | BR9608357A (en) |
CA (1) | CA2224607C (en) |
DE (2) | DE29509516U1 (en) |
PL (1) | PL323711A1 (en) |
WO (1) | WO1997000222A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19931172C1 (en) * | 1999-07-06 | 2001-01-04 | Sundwig Gmbh | Device for separating conveyed strips lying next to one another, in particular consisting of metal |
DE102004000034A1 (en) | 2004-10-26 | 2006-04-27 | Voith Paper Patent Gmbh | Separating device for separation of material coil e.g. paper or board coil in many partial coils has monitoring device which is arranged in central area to monitor partial coils |
DE102005057827A1 (en) * | 2005-12-03 | 2007-06-06 | Voith Patent Gmbh | Reel winding device |
DE102011111376B3 (en) * | 2011-08-29 | 2013-02-07 | Lohmann Gmbh & Co. Kg | Mobile coil unwinder |
CN106315270A (en) * | 2016-10-21 | 2017-01-11 | 盐城旭华机械有限公司 | Roll material collecting device in narrow multi-tool slitting technology |
IT202100026405A1 (en) * | 2021-10-14 | 2023-04-14 | Costruzioni Mecc Luigi Bandera S P A | APPARATUS TO PERFORM THE DIVISION AND SPREADING OF A CONTINUOUS BELT |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1056571B (en) * | 1956-09-19 | 1959-05-06 | Wittler & Co H | Spreader for webs |
DE2007569B1 (en) * | 1970-02-19 | 1971-04-22 | Erwin Kampf Maschinenfabrik | Roller mill for pulling apart strips |
US4410122A (en) * | 1981-06-01 | 1983-10-18 | Beloit Corporation | Device for widthwise control of web material and method |
FI90523C (en) * | 1989-11-22 | 1994-02-25 | Valmet Paper Machinery Inc | Device for separating the partial webs |
-
1995
- 1995-06-14 DE DE29509516U patent/DE29509516U1/en not_active Expired - Lifetime
-
1996
- 1996-06-14 JP JP9502640A patent/JPH11507615A/en active Pending
- 1996-06-14 DE DE69605119T patent/DE69605119T2/en not_active Expired - Fee Related
- 1996-06-14 BR BR9608357A patent/BR9608357A/en not_active Application Discontinuation
- 1996-06-14 WO PCT/EP1996/002563 patent/WO1997000222A1/en active IP Right Grant
- 1996-06-14 EP EP96921984A patent/EP0846080B1/en not_active Expired - Lifetime
- 1996-06-14 CA CA002224607A patent/CA2224607C/en not_active Expired - Fee Related
- 1996-06-14 AU AU63030/96A patent/AU6303096A/en not_active Abandoned
- 1996-06-14 PL PL96323711A patent/PL323711A1/en unknown
- 1996-06-14 AT AT96921984T patent/ATE186520T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9700222A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE69605119T2 (en) | 2000-11-09 |
ATE186520T1 (en) | 1999-11-15 |
PL323711A1 (en) | 1998-04-14 |
DE29509516U1 (en) | 1996-10-17 |
CA2224607A1 (en) | 1997-01-03 |
JPH11507615A (en) | 1999-07-06 |
DE69605119D1 (en) | 1999-12-16 |
CA2224607C (en) | 2001-12-04 |
EP0846080B1 (en) | 1999-11-10 |
AU6303096A (en) | 1997-01-15 |
BR9608357A (en) | 1998-12-15 |
WO1997000222A1 (en) | 1997-01-03 |
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