EP1640300B1 - Device for winding a continuous material web - Google Patents
Device for winding a continuous material web Download PDFInfo
- Publication number
- EP1640300B1 EP1640300B1 EP05025665A EP05025665A EP1640300B1 EP 1640300 B1 EP1640300 B1 EP 1640300B1 EP 05025665 A EP05025665 A EP 05025665A EP 05025665 A EP05025665 A EP 05025665A EP 1640300 B1 EP1640300 B1 EP 1640300B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- web
- suction
- roller
- bell
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
- B65H19/2253—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being displaced during the winding operation
- B65H19/2261—Pope-roller
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- 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
- B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
- B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction roller
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- 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
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/413—Supporting web roll
- B65H2301/4135—Movable supporting means
- B65H2301/41358—Movable supporting means moving on an arc of a circle, i.e. pivoting supporting means
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- 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
- B65H2301/41419—Starting winding process
- B65H2301/41426—Starting winding process involving suction means, e.g. core with vacuum supply
-
- 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
- B65H2301/4146—Winding involving particular drive arrangement
- B65H2301/41466—Winding involving particular drive arrangement combinations of drives
- B65H2301/41468—Winding involving particular drive arrangement combinations of drives centre and nip drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/90—Machine drive
- B65H2403/94—Other features of machine drive
- B65H2403/942—Bidirectional powered handling device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/15—Roller assembly, particular roller arrangement
- B65H2404/152—Arrangement of roller on a movable frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/21—Angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/23—Coordinates, e.g. three dimensional coordinates
Definitions
- the invention relates to a device for winding a continuous web.
- Continuously produced material webs for example flat-lay tubular webs or single-layer webs made of thermoplastic material produced in a blown film line, must be wound up to form winding reels for storage and handling.
- each running to a winding roll web must be severed after the finish winding a winding roll and the web start of the trailing path to Anwickeln on a winding core or a winding tube to be able to continue the winding process without disturbance or diversion of the continuously fed web.
- a known device for glueless Anwickeln a web start on a winding core or a winding tube consists of an attached to a provided with suction holes in its jacket feed roll Wikkelhülse on which after the severing of the web of the web formed thereby web wound is wound by the fact that in the nip between the Feed roll and the winding tube, a suction box is retracted, which is provided at an extended edge with a web-cutting knife and then to the knife with a cup-shaped curved wall which forms a cup-shaped curved channel with a portion of the circumference of the winding tube, at the front End in the region of the nip through the suction box air is sucked in such a way that the web start is sucked into the guide channel, and is determined by the winding tube, that the web start in the gap between the feed roller and the winding tube runs, in which
- a particular problem with the winding of winding cores or cores with a web start is that the winding rolls to be wound up are asymmetrical, which means that they have sides with different properties. Depending on the further processing of wound up to winding rolls webs, it is therefore desirable that one or the other side is located on the winding roll outside.
- it is necessary to drive the feed roller and the winding core or the winding tube with opposite directions of rotation what it makes it necessary to supply the web beginning of the winding tube formed by separation of the web depending on the direction of rotation from opposite directions of the feed roller.
- Such a supply of the web start to the winding tube from opposite directions is not possible in the known device.
- a fundamental object is therefore to provide a device which makes it possible to supply the web start of a wound up to a winding roll web to a winding core or a winding tube in the manner depending on the direction of rotation approximately tangentially that the web optionally with one or the other Side outside can be wound up to a winding roll.
- the solution to this problem consists of a web winder, i. a device for winding a continuous material web on a series of cores with a winding roller, at least one guide roller, at least one separating device and means for winding the formed on actuation of the separator front end of the moving material web by a suction air flow to the winding tube;
- the winding device according to the invention suitable for bi-directional operation has a bell which comprises the winding sleeve to be respectively wound and formed by two elongated shells, each of the shells being close to its free, i.e.
- the bell further has means for actuating one of the two suction slots, preferably the suction slot located downstream in each case in the direction of rotation of the winding roller, for winding, and the separating device lies in the interior of the winding roller.
- the invention is in principle suitable for the continuous winding of webs of different materials, such as paper textile material and metal foils, but is used in particular in the course of the production and / or processing of endless films or tapes based on synthetic or semisynthetic polymers, such as the known continuous film webs based on cellulose and cellulose derivatives, polyalkylenes, polyesters, polyethers, polyurethanes, polyamides and the like, in particular if these films have a different surface finish on both sides thereof.
- synthetic or semisynthetic polymers such as the known continuous film webs based on cellulose and cellulose derivatives, polyalkylenes, polyesters, polyethers, polyurethanes, polyamides and the like, in particular if these films have a different surface finish on both sides thereof.
- the web of material is held in contact with the winding roll by a vacuum applied in the interior of the winding roll, the shell of which is provided with perforations in a manner known per se, has a relatively non-slip surface and has e.g. can wear a rubber coating.
- the process of the invention can be operated at web speeds in a typical range of about 30-400 meters per minute or more. It is advantageous if the speed of the air flow at the respective actuated suction slot is at least twice and preferably at least three times higher than the running speed of the material web. Preferably, the suction air flow is thereby directed to flow around at least about 3/4 of the circumference of the winding tube (i.e., at least 270 °).
- the material web is applied to the separating roller at least about half of the circumference of the winding roller at this, that is. at least approximately 180 ° of the winding roller.
- the separator located inside the winding roller may be located in a chamber which is closed against the interior of the winding roller, practically only via a corresponding slot and, if necessary, suitable openings in the wall of the winding roller can be in communication with the ambient air.
- the chamber can be supplied with compressed air to at least cancel the adhesion of the web to the winding roller or to accelerate the web ends formed during the separation process in the radial direction to the outside.
- each of the Wikkelwalze fitting winding tube and the core carrying it is driven in a conventional manner and with known means centrally in one direction, which is opposite to the working direction of the winding roller.
- the bell is connected to a source of negative pressure, also called “vacuum source”, and to means of opening and closing.
- a source of negative pressure also called “vacuum source”
- Suitable vacuum sources e.g. Vacuum pumps, belong here as well to the state of the art, as the necessary means of movement and require no detailed description here.
- the applied negative pressure is typically in the range of about minus 250 to about minus 900 mbar.
- the suction air flow generated under the effect of this negative pressure inside the bell can also be seen in the above-mentioned WO 9906313 known manner be supported by lateral inflows of ambient air.
- the shape of the bell forming shells according to the invention is generally designed so that an annular gap for the passage of the suction air flow is formed between the inner walls of the shells and the fresh winding tube.
- the suction air flow in this gap has a flow velocity at the particular negative pressure that is typically at least twice as great as the running speed of the film web.
- the front end resulting from web separation can be guided by the suction air flow over almost the entire circumference of the winding sleeve, preferably by at least about 270 ° of this circumference.
- bell or each bell is normally movable between a rest position and a working position, which can be accomplished by means known per se.
- movements required for carrying out the method according to the invention or for the operation of the device can be carried out in a manner known per se with conventional pneumatically, hydraulically or electrically operated movement means. This is within the skill of the art and needs no particular explanation here
- Fig. 1 are end views of the suction and knife cylinder 1, located in its Anwickel ein winding tube 2 and the almost finished wound winding roll 3 can be seen.
- the continuously fed material web 4 is fed to the suction and knife cylinder 1 via the deflection roller 5. It then runs approximately over half the circumference of the suction and knife cylinder 1 and is then wound up to the winding roll 3, wherein the winding core or the winding tube and forming on this winding roll can be employed to drive them directly on the circumference of the suction and knife cylinder.
- the winding roll can also be formed by a so-called gap winder, in which the winding roll or its winding core or winding tube is provided with its own drive.
- the stand of the winding roll 3, not shown, is guided via guides 6 on frame-fixed rods or rails 7 in such a way that the winding roll 3 according to the increase in diameter removed from the suction and knife cylinder 1.
- the web 4 runs from the guide roller 5 in the direction of arrow A. on the further guide roller 8 on the suction and knife cylinder 1, reversing the direction of rotation, wherein the corresponding trajectory is shown in dashed lines.
- Fig. 1 the winding tube 2 is enclosed by a housing 10 consisting of two folding housing shells 11, 12, which surrounds the winding tube 2 concentrically to form a guide channel 13. Between the end edges of the housing shells 11, 12 closed to a housing 13, an inlet gap 14 is formed into which the web beginning formed by a cross-cutting cut enters, depending on the direction of rotation, coming from the left or from the right.
- each of the web start of the suction and knife lifting cylinder edge of the inlet gap 14 is pivoted in a diameter plane 15 of the suction and knife cylinder, in which the edge of the jacket of the suction and knife cylinder is most approximated.
- the winding core or the winding tube 2 is mounted with its shaft journal in a bearing shell 16 and provided in a known and not shown manner with a drive.
- Out Fig. 3 are the suction and knife cylinder 1 and the winding tube 2 with this enclosing housing 3 in the off Fig. 1 apparent position in which the web 4 is already separated by a cross cutting and the winding tube 2 is in its Anwickelwolf.
- the suction and knife cylinder 1 has a steel shell 20, which is closed by end plates 21, which carries the suction and knife cylinder overlapping and driving shaft journals 22.
- the steel jacket 20 is provided with suction air holes 23 in axially extending rows.
- the interior of the suction and knife cylinder 1 is connected by a line and a rotary feedthrough in a known manner to a suction air source.
- the jacket 20 of the suction and knife cylinder 1 is provided with a preferably vulcanized coating 24, the suction holes 23 also enforce, made of rubber or other elastomeric material.
- the steel shell 20 including the coating 24 enclosing this is provided with an axially extending slot 25, the knife 26 enforce to sever the web 4.
- the slot 25 is bounded by edges of the steel shell, which are provided at equal intervals with circumferentially freely tapered recesses 28. In these recesses 28 are according to the radius of the suction and knife cylinder curved finger-like plates 29 which close the recesses 28 in the pivoted state.
- the plates 29 are also covered by the vulcanized rubber layer 24, but which is provided with the side edges of the plates 29 in alignment with circumferentially extending separating cuts, so that the plates 29 are pivotally connected at their inner ends only by the rubber layer 24 with the steel shell 20 ,
- the swing plates 29 are provided with welded rams 30 which are interconnected by an axially extending rod 31.
- the piston rod 32 of a pneumatic cylinder 33 is pivotally connected, which is hinged to a tab 34 which is welded to the inner portion 35 of the shaft journal 22.
- the pneumatic cylinder 33 is supplied via unillustrated rotary unions for its operation compressed air.
- the pneumatic cylinders 33 are provided in duplicate, for swinging the finger-like plates 29 on both sides of the slot 25.
- the legs 41, 42 of a U-shaped profile 43 are welded, in which a knife bar 44 is guided.
- the cutter bar 44 is at equal intervals with knives 45 with triangular Provided cutting 46, which serve the transverse separation of the web 4.
- the knife bar 44 is provided in the region of its front and rear ends on both sides with rollers 47 which are guided in trapezoidal guide grooves 48 which are incorporated into the inner flanks of the legs 41, 42 of the profile 43.
- the knife bar 44 is articulated by a link 50 to a pivotally mounted on the end wall 21 of the suction and knife cylinder 1 lever 51, which in turn is pivoted to its reciprocal pivoting to the piston rod 54 of a pneumatic cylinder 53 which is pivotable in a sleeve 55 is stored, which is welded into the end wall 21.
- the blades 45 are thereby excavated from the gap 25, moved in the axial direction and retracted again into the gap 25, that the rollers 47 run up the run-up slopes of the trapezoidal guides 48, over the straight extending middle section are moved in the axial direction and then be retracted by expiry on the other sloping edge.
- the central sections of the guides 48 which run parallel to the axis of the suction and knife cylinder, are made at least as long as the spacing of the knives 45 from one another.
- the shells 11, 12 of the winding sleeve 2 enclosing housing 10 are pivotally mounted about a common axis 60 which are connected to support plates 61 which are mounted concentrically to the central axis 62 of the winding tube 2 pivotally. For pivoting the support plates 1, these are guided over guide rollers 63 in a fixed guide 64, which is curved concentrically to the axis 62.
- the shells 11, 12 For pivoting the shells 11, 12 from their positions shown in solid lines in the dashed positions 11 ', 12', the shells 11, 12 articulated on their outer sides with arms 66, 67, the other ends hinged together and about the common pivot axis 68 are pivotally connected to the piston rod of a pneumatic cylinder 69 which is pivotally connected to the support plates 61.
- a pneumatic cylinder 69 By appropriate actuation of the pneumatic cylinder 29, the housing shells 11, 12 for release Swing out the winding tube 2 and swing in to form the annular guide channel.
- the housing shells 11, 12 are each provided in rows with Saug Kunststoffstutzen 70, 71, is sucked through the air depending on the direction of rotation of the suction and knife cylinder and the winding tube to support the wrapping around the web start in the guide channel to the winding tube 2 around.
- Blas Kunststoffdüsen 72, 73 can be provided, can be blown through the blowing air into the annular guide channel to umschlingend around the winding tube 2 in a corresponding manner the web start.
- Fig. 3 shows the state in which the cutting blades 26 have cut through the process in the axial direction in the slot 25, the web 4, wherein the end of the wound web and the web beginning formed by the separating cut on the suction and knife cylinder is held by the suction holes 23 ,
- FIG. 4 how out Fig. 4 can be seen lifting the finger-like plates 29 by appropriate pivoting through the pneumatic cylinder the web start from the enveloping cylinder of the suction and knife cylinder, so that it is taken over by the fingers of one edge of the inlet slot of the housing and introduced into the annular guide channel 13.
- the knife bar 44 is guided by the rollers 47 in circular arcuate guides 48 a, which are incorporated into the inner edges of the legs 41, 42 of the profile 43.
- the knife bar 44 and thus also the knife 45 during the cut of a circular arc-shaped movement which has the consequence that the cutting movement in the plane of the web to be separated is superimposed on a cutting movement transverse thereto.
- the cutting blades in the plane of the web move in the direction of the axis of the cutting cylinder, which is at least as large as the distance of the individual blades 45 from each other.
- the cutter bar 44 is mounted at its ends on parallel core 80, whose other ends are mounted on brackets 81, which are welded to the end plates 21 of the knife cylinder.
- the length of the handlebars is such that they give the cutter bar a curve movement, through which the blades 45 are guided by the web to be cut in such a way that the cutting movement in the plane of the web is superimposed on a transverse movement.
- the curve movement of the cutter bar is oriented such that the knife in the middle of their reciprocating motion reach the apex of the circular arc movement.
- the piston rod of a pneumatic cylinder 82 is articulated to a parallel link, which in turn is pivotally mounted in a holder of the knife cylinder.
- the scheme shown runs the web B, which is for example an endless plastic film, towards and around the guide roller 114 which is horizontally displaceable in a conventional manner for controlling the web tension in the direction of the dashed double arrow. Then the web runs on and around a second guide roller 115 and from there to the winding roller 112, which is driven by a drive, not shown in the direction of the arrow R, ie counterclockwise, rotating at the desired operating speed.
- two separating devices 116, 116 a are arranged inside the winding roller 112.
- the use of two separators to peripherally opposed separators is not critical. Rather, it is also possible to work with a single separating device or with a plurality of winding rollers distributed uniformly around the circumference of the winding roller, which not least also depends on the circumference of the winding roller and its operating speed.
- the web B travels from the winding roller 112 to the almost full film roll 113 in the "second winding station or phase".
- the film roll 113 is also connected to a central drive (not shown) and rotates in the direction of the arrow R, ie clockwise.
- the second winding station in the FIGS. 12 and 13 Although shown by a pivoting arm 117, 127 to make the running there finished winding and the delivery of the full film wrap in a simple manner that the arm 117, 127 but of course by a known per se Can be replaced, which brings the holder for the film roll 113, 123 by means of a movement device in the respective required position, for the acquisition of the wound winding tube 111, 121 and for the preferably adjustable contact pressure in the final winding of the film roll on the winding roller and finally for the discharge of the finished film roll is required.
- Fig. 13 again shows a web B, on and around the first guide roller 124, but not on and around the broken drawn and not in operation here deflection roller 125 but directly on the in the direction of the solid part of the arrow R, ie clockwise here, rotating Winding roller 122 runs, in the interior of which also two mutually peripherally opposed separating devices 126, 126a are arranged.
- the winding direction is reversible even if the web B always in the same direction in the film winder enters, ie in the FIGS. 12 and 13 equally "from the bottom left".
- the pivot arm 125 is now in a position between 1 o'clock and 2 o'clock and the winding tube guided by it is enclosed by the bell 129 in the working position.
- the finished film roll 123 can be moved to the broken position 127b, i.e., by actuating the pivot arm 127. in the unloading position 123a, brought and transported away.
- the pivoting arm 127 then moves from the position 127b in the broken-through position into the position 127a, which is also shown in broken lines, and is now ready to take over the winding tube wound in the bell 129.
- the bell 129 To initiate the transfer of the wound winding tube from the first to the second winding phase, the bell 129 must be opened and the pivot arm 125 are brought into the broken position 125a. After the delivery of the wound film sleeve, the pivot arm 125 returns to the vertical position according to FIG Fig. 12 back before picking up the next fresh winding tube.
- Fig. 14 shows the scheme already in Fig. 12 indicated Anwickelglocke 119 in the open state.
- Their two shells 131, 132 are articulated, for example with hinges 331.332 on the support 133.
- Each shell has a substantially closed interior 310, 320 which is enclosed by an outer wall 311, 321, an Innwand 312, 322, one of the shape of the winding roller adapted, ie correspondingly curved connecting wall 313, 323 and two side walls.
- the side walls (of which only the rear walls 318, 328 seen by the viewer are shown) each have a wall continuation with a approximately semicircular recess, which corresponds to the shape of the winding tube and this encloses so that at a in each case connected to the vacuum source interior 310, 320 and then prevailing therein negative pressure to minimize lateral inflow of air.
- each cavity 310, 320 has at the upper end a passage 324, 325 for connection to the interior 330 of the support tube 133.
- the support for the bell does not necessarily have to serve as a connection to the vacuum source.
- This connection can also be accomplished by a separate and, for example, flexible conduit which is optionally connected to the means (for the sake of simplicity of illustration in the figures) for moving the bell from division of labor to rest and for opening and closing the shells.
- the means for moving the bell from a "rest position" to a division of labor is preferred but not critical to the invention.
- the ability of the shells to open and close the bell is essential, because this is the introduction of the fresh winding tube into the first winding station (or "Anwickelstation”) and the transfer of the wound winding tube from the first to the second winding station (or "Fertigwickelstation”). is required.
- suction slots are understood here both continuous and discontinuous openings, i. the “suction slot” can also be an equivalent row of holes.
- a slide 334 is arranged in the support 133 in order to block the connection with the vacuum source either for both shells 131, 132 (when the bell is at rest or on the way from or to its working position), or (in working position according to Fig. 14 ) to establish the connection of the vacuum source with only one of the two cavities 310, 320.
- Fig. 15 shows the bell 129 of Fig. 14 now in working position on the winding roller. It is understood that the bell closes only when the fresh winding tube 121 with its core 121 a of a pivoting arm according to Fig. 12 or an equivalent mechanism from the magazine to the Anwickelposition according to Fig. 15 has been transferred and held in this position.
- Fig. 15 From the winding roller is in Fig. 15 for ease of illustration only a part of the shell of the winding roller 134 is shown, which is provided with a plurality of preferably approximately uniformly distributed on the shell of the winding roller openings 341 to the film web B in a conventional manner under the action of the ruling in the interior of the winding roller Keep negative pressure firmly on the winding roller.
- the film web B is separated by a transversely to the direction of movement (counterclockwise, arrow R) extending continuous section in a manner explained in more detail below.
- a plurality of separating elements 364 is arranged to move together in the direction of the double arrow in and through the slot 360.
- the dividers are moved radially (i.e., in the direction of the double-headed arrow) outwardly as well as axially (i.e., perpendicular to the plane of the drawing) to effect web separation.
- the movement length in the axial direction is dimensioned so that each separating element at least travels through the distance to the adjacent separating element.
- the respective "downstream”, ie in Fig. 15 operated in the direction of movement R of the web B "back” shell 131 and not in the direction of movement "upstream” or more "front” lying shell 132 is actuated.
- This operation is effected in that the respective interior of the corresponding chamber is connected to the vacuum sources, here for example by operation of the slide 334 coincides so that the opening 335 in the slider with the opening 325 at the upper end of the shell 131 matches and thereby the Innraum 310 of the shell 131 is connected via the interior 330 of the carrier 133 with the vacuum source.
- the common length of the channels 136, 137 is sized to encompass at least 270 ° of the circumference of the winding tube.
- each successive layer of the film web B running onto the winding sleeve 121 fixes the layers already thereon so that a tension-proof connection between the film web B and the winding sleeve 121 is achieved, i. the critical part of the Anwickelvorgangs is completed and the angepeite with multiple layers of the film web sleeve 121 as described above can be transferred from the first to the second winding station.
- the Anwickelvorgang runs in an analogous manner, ie the front end of the web B is wound by means of the suction air stream, which in turn is sucked through the column 351, 352, but this time by actuating the shell 132 by connecting the associated interior space 320 to the vacuum source via the slides 334 shifted to release the 324 and the suction air flow resulting thereby first into the channel 137, then the channel 136 and finally through the suction gap 329 at the free lower end E2 of the shell 132 runs.
- the separation process is effected by the separator, which tapers next to the gap 352.
- Fig. 16 illustrates the principle of a preferred web separation device 140 according to the invention which is useful not only for the web winding method or web wrapping apparatus described herein but also for other purposes requiring rapid, secure and smooth cutting of a web, particularly a polymer film web.
- a web separation device 140 is based essentially on the fact that several, for example via a slider 142 motion connected tip dividers 141 in the radial direction (ie, the directions of the double arrow MR) by the (in Fig. 16 Not shown slot in the shell of the winding drum are guided to the outside and perforate the web B accordingly, and also in the axial direction (ie in the direction of the double arrow MA) are at least as far moved that each of the elements 141 at least one path of length L corresponding to Distance between two adjacent elements 141 travels.
- the initial perforation of the web B is transformed into a continuous cut by means of the sharp side edges 411, 412.
- this separation technique is advantageous for the web separation of the usually extensible polymer films.
- the separating elements 141 are arranged on the slide 142 formed as a guide slide, which is guided in a manner not shown that of the recesses 143 and the fixed guide pin 144th at each actuation of the drive 148 in the direction of the double arrow MA first in the radial outward direction for contact all pointed separating elements 141 brought to the film web, then laterally in the axial direction and finally in the radial direction is moved inwards.
- the pointed separating elements 141 cause this first a perforation and immediately connect thanks to the axial movement by means of the cutting edges 411, 412 a cutting through the film web.
- the limitation of the movement in the axial direction defined by the openings 143 may well be greater than the distance between two adjacent separating elements 141, in particular if this ensures the safety and completeness of the web separation.
- the movement of the separating elements in the axial direction does not necessarily have to be linear, but can, for example, run in a wave-like zigzag shape, with appropriate adaptation of the passage openings for the separating elements in the casing of the winding roller.
- the drive 148 preferably generates a sudden movement which is completed in fractions of a second, typically less than 0.1 sec. This determines the duration of the separation process, which in turn can be adapted to the web speed.
Landscapes
- Replacement Of Web Rolls (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Aufwickeln einer kontinuierlichen Materialbahn.The invention relates to a device for winding a continuous web.
Kontinuierlich hergestellte Materialbahnen, beispielsweise in einer Blasfolienanlage hergestellte flachliegende Schlauchbahnen oder einlagige Bahnen aus thermoplastischem Kunststoff, müssen zur Speicherung und Handhabung zu Wickelrollen aufgewickelt werden. Hierbei muß die jeweils zu einer Wickelrolle laufenden Bahn nach dem Fertigwickeln einer Wickelrolle durchtrennt und der Bahnanfang der nachlaufenden Bahn zum Anwickeln auf einen Wickelkern oder einer Wickelhülse festgelegt werden, um den Wickelvorgang ohne Störung oder Umleitung der kontinuierlich zugeführten Bahn fortsetzen zu können.Continuously produced material webs, for example flat-lay tubular webs or single-layer webs made of thermoplastic material produced in a blown film line, must be wound up to form winding reels for storage and handling. Here, each running to a winding roll web must be severed after the finish winding a winding roll and the web start of the trailing path to Anwickeln on a winding core or a winding tube to be able to continue the winding process without disturbance or diversion of the continuously fed web.
Es ist bekannt, den Anfang einer zu einer Wickelrolle aufzuwickelnden Bahn auf eine Wickelhülse aufzuwickeln, die zum Festlegen des Bahnanfangs mit einem Klebstoffauftrag versehen ist.It is known to wind the beginning of a web to be wound up into a winding roll onto a winding tube, which is provided with an adhesive application for defining the web beginning.
Um diesen mit einem zusätzlichen Aufwand aufzubringenden Klebstoffauftrag zu vermeiden, sind auch Vorrichtungen zum kleberlosen Anwickeln von Bahnen auf Wickelhülsen bekannt. Eine bekannte Vorrichtung zum kleberlosen Anwickeln eines Bahnanfangs auf einen Wickelkern oder eine Wickelhülse besteht aus einer an eine mit Saugbohrungen in ihrem Mantel versehene Zuführungswalze angestellte Wikkelhülse, auf die nach dem Durchtrennen der Bahn der dadurch gebildete Bahnanfang dadurch aufgewickelt wird, daß in den Walzenspalt zwischen der Zuführungswalze und der Wickelhülse ein Saugkasten eingefahren wird, der an einer verlängerten Kante mit einem die Bahn durchtrennenden Messer und anschließend an das Messer mit einer schalenförmig gekrümmten Wand versehen ist, die mit einem Bereich des Umfangs der Wickelhülse einen schalenförmig gekrümmten Kanal bildet, an dessen vorderem Ende im Bereich des Walzenspalts durch den Saugkasten Luft in der Weise angesaugt wird, daß der Bahnanfang in den Führungskanal hineingesaugt wird, und dadurch an der Wickelhülse festgelegt wird, daß der Bahnanfang in den Spalt zwischen der Zuführungswalze und der Wickelhülse einläuft, in der er von der nachlaufenden Bahn überdeckt wird, so daß der Bahnanfang nach einer Windung auf der Wickelhülse festgelegt ist.In order to avoid this applied with an additional effort adhesive application, devices for glueless winding of webs on cores are known. A known device for glueless Anwickeln a web start on a winding core or a winding tube consists of an attached to a provided with suction holes in its jacket feed roll Wikkelhülse on which after the severing of the web of the web formed thereby web wound is wound by the fact that in the nip between the Feed roll and the winding tube, a suction box is retracted, which is provided at an extended edge with a web-cutting knife and then to the knife with a cup-shaped curved wall which forms a cup-shaped curved channel with a portion of the circumference of the winding tube, at the front End in the region of the nip through the suction box air is sucked in such a way that the web start is sucked into the guide channel, and is determined by the winding tube, that the web start in the gap between the feed roller and the winding tube runs, in which he is covered by the trailing path, so that the web start is set after a turn on the winding tube.
Ein besonderes Problem bei der Anwicklung von Wickelkernen oder Wickelhülsen mit einem Bahnanfang besteht jedoch darin, daß die zu Wickelrollen aufzuwickelnden Bahnen asymmetrisch sind, was bedeutet, daß sie Seiten mit unterschiedlichen Eigenschaften besitzen. Je nach der Weiterverarbeitung der zu Wickelrollen aufgewickelten Bahnen ist es daher erwünscht, daß die eine oder die andere Seite auf der Wickelrolle außen liegt. Um Wickelrollen herstellen zu können, auf denen die Bahnen mit wechselnden Außenseiten, also einmal mit der einen und zum anderen mit der anderen außen liegenden Seite aufgewickelt werden, ist es erforderlich, die Zuführungswalze und den Wickelkern oder die Wickelhülse mit entgegengesetzten Drehrichtungen anzutreiben, was es erforderlich macht, den durch Trennung der Bahn gebildeten Bahnanfang der Wickelhülse je nach Drehrichtung aus einander entgegengesetzten Richtungen von der Zuführungswalze zuzuführen. Eine derartige Zuführung des Bahnanfangs zu der Wickelhülse aus einander entgegengesetzten Richtungen ist bei der bekannten Vorrichtung nicht möglich.A particular problem with the winding of winding cores or cores with a web start, however, is that the winding rolls to be wound up are asymmetrical, which means that they have sides with different properties. Depending on the further processing of wound up to winding rolls webs, it is therefore desirable that one or the other side is located on the winding roll outside. In order to produce bobbins on which the webs with changing outer sides, so once wound up with one and the other with the other outer side, it is necessary to drive the feed roller and the winding core or the winding tube with opposite directions of rotation what it makes it necessary to supply the web beginning of the winding tube formed by separation of the web depending on the direction of rotation from opposite directions of the feed roller. Such a supply of the web start to the winding tube from opposite directions is not possible in the known device.
Eine grundsätzlich Aufgabe ist es daher, eine Vorrichtung zu schaffen, die es ermöglicht, den Bahnanfang einer zu einer Wickelrolle aufzuwickelnden Bahn zu einem Wickelkern oder einer Wickelhülse in der Weise je nach Drehrichtung etwa tangential zuzuführen, daß die Bahn wahlweise mit der einen oder der anderen Seite außenliegend zu einer Wickelrolle aufgewickelt werden kann.A fundamental object is therefore to provide a device which makes it possible to supply the web start of a wound up to a winding roll web to a winding core or a winding tube in the manner depending on the direction of rotation approximately tangentially that the web optionally with one or the other Side outside can be wound up to a winding roll.
Die Lösung dieser Aufgabe besteht aus einem Bahnwickler, d.h. einer Vorrichtung zum Aufwickeln einer kontinuierlich laufenden Materialbahn auf eine Folge von Wickelhülsen mit einer Wickelwalze, mindestens einer Umlenkwalze, mindestens einer Trennvorrichtung und einer Einrichtung, um das bei Betätigung der Trennvorrichtung gebildete vordere Ende der laufenden Materialbahn durch einen Saugluftstrom an der Wickelhülse anzuwickeln; die erfindungsgemäß für bi-direktionalen Betrieb geeignete Wickelvorrichtung besitzt eine die jeweils anzuwickelnde Wickelhülse umfassende und von zwei länglichen Schalen gebildete Glocke, wobei jede der Schalen nahe ihrem freien, d.h. nicht mit der anderen Schale verbundenen Ende, einen sich mindestens annährend über die Länge der Wickelhülse erstreckenden Saugschlitz hat; die Glocke besitzt ferner Einrichtungen, um einen der beiden Saugschlitze, vorzugsweise den jeweils in Drehrichtung der Wickelwalze stromabwärts liegenden Saugschlitz, zum Anwickeln zu betätigen und die Trennvorrichtung liegt im Inneren der Wickelwalze.The solution to this problem consists of a web winder, i. a device for winding a continuous material web on a series of cores with a winding roller, at least one guide roller, at least one separating device and means for winding the formed on actuation of the separator front end of the moving material web by a suction air flow to the winding tube; the winding device according to the invention suitable for bi-directional operation has a bell which comprises the winding sleeve to be respectively wound and formed by two elongated shells, each of the shells being close to its free, i.e. not connected to the other shell end, has a at least approximately over the length of the winding tube extending suction slot; the bell further has means for actuating one of the two suction slots, preferably the suction slot located downstream in each case in the direction of rotation of the winding roller, for winding, and the separating device lies in the interior of the winding roller.
Die Erfindung ist grundsätzlich für das kontinuierliche Wickeln von Bahnen aus unterschiedlichen Werkstoffen, wie Papier Textilmaterial und Metallfolien, geeignet, wird aber insbesondere im Zuge der Herstellung und/oder Verarbeitung von endlosen Folien oder Bändern auf Grundlage von synthetischen oder halbsynthetischen Polymeren verwendet, wie den bekannten endlosen Folienbahnen auf Basis von Cellulose und Cellulosederivaten, Polyalkylenen, Polyestern, Polyäthern, Polyurethanen, Polyamiden und dergleichen, insbesondere wenn diese Folien Auf ihren beiden Seiten eine unterschiedliche Oberflächenbeschaffenheit haben.The invention is in principle suitable for the continuous winding of webs of different materials, such as paper textile material and metal foils, but is used in particular in the course of the production and / or processing of endless films or tapes based on synthetic or semisynthetic polymers, such as the known continuous film webs based on cellulose and cellulose derivatives, polyalkylenes, polyesters, polyethers, polyurethanes, polyamides and the like, in particular if these films have a different surface finish on both sides thereof.
Zweckmäßigerweise wird die Materialbahn durch einen im Innern der Wickelwalze anliegenden Unterdruck in Kontakt mit der Wickelwalze gehalten wird, deren Mantel in an sich bekannter Weise mit Durchbrechungen versehen ist, eine relativ rutschfeste Oberfläche hat und z.B. einen Gummibelag tragen kann. Das erfindungsgemäße Verfahren kann mit Bahnlaufgeschwindigkeiten in einem typischen Bereich von etwa 30 - 400 Meter pro Minute oder mehr betrieben werden. Dabei ist es vorteilhaft, wenn die Geschwindigkeit des Luftstroms am jeweils betätigten Saugschlitz mindestens zweimal und vorzugsweise mindestens dreimal höher ist, als die Laufgeschwindigkeit der Materialbahn. Vorzugsweise wird der Saugluftstrom dabei so gelenkt, daß er mindestens etwa 3/4 des Umfangs der Wickelhülse (d.h. mindestens 270°) umströmt.Conveniently, the web of material is held in contact with the winding roll by a vacuum applied in the interior of the winding roll, the shell of which is provided with perforations in a manner known per se, has a relatively non-slip surface and has e.g. can wear a rubber coating. The process of the invention can be operated at web speeds in a typical range of about 30-400 meters per minute or more. It is advantageous if the speed of the air flow at the respective actuated suction slot is at least twice and preferably at least three times higher than the running speed of the material web. Preferably, the suction air flow is thereby directed to flow around at least about 3/4 of the circumference of the winding tube (i.e., at least 270 °).
Ferner ist es zweckmäßig, wenn die Materialbahn bei Betätigung der Trenneinrichtung an mindestens etwa über die Hälfte des Umfangs der Wickelwalze an dieser anliegt, d.h. mindestens annähernd 180° der Wickelwalze umfaßt. Gegebenenfalls kann die innen in der Wickelwalze liegende Trenneinrichtung in einer Kammer liegen, die gegen das Innere der Wickelwalze abgeschlossen ist, praktisch nur über einen entsprechenden Schlitz und bei Bedarf geeignete Durchbrechungen in der Wand der Wickelwalze mit der Umgebungsluft in Verbindung stehen kann. Bei Einleitung eines Bahntrennvorgangs kann die Kammer mit Druckluft versorgt werden, um die Haftung der Bahn an der Wickelwalze mindestens aufzuheben bzw. die beim Trennvorgang gebildeten Bahnenden in radialer Richtung nach außen zu beschleunigen.Furthermore, it is expedient if the material web is applied to the separating roller at least about half of the circumference of the winding roller at this, that is. at least approximately 180 ° of the winding roller. Optionally, the separator located inside the winding roller may be located in a chamber which is closed against the interior of the winding roller, practically only via a corresponding slot and, if necessary, suitable openings in the wall of the winding roller can be in communication with the ambient air. When initiating a web separation process, the chamber can be supplied with compressed air to at least cancel the adhesion of the web to the winding roller or to accelerate the web ends formed during the separation process in the radial direction to the outside.
Die Versorgung der Wickelvorrichtung mit frischen Wickelhülsen aus einem Magazin ist Stand der Technik, ebenso die Anordnung der Hülsen auf einem Wickelkern und die Überführung der Hülsen und Kerne aus dem Magazin in die Positionen für das Anwickeln und Fertigwickeln. Zweckmäßigerweise wird die jeweils an der Wikkelwalze anliegende Wickelhülse bzw. der sie tragende Kern in an sich bekannter Weise und mit an sich bekannten Mitteln zentral in einer Richtung angetrieben, die der Arbeitsrichtung der Wickelwalze entgegengesetzt ist.The supply of the winding device with fresh cores from a magazine is state of the art, as well as the arrangement of the sleeves on a winding core and the transfer of the sleeves and cores from the magazine in the positions for the Anwickeln and finish wrapping. Conveniently, each of the Wikkelwalze fitting winding tube and the core carrying it is driven in a conventional manner and with known means centrally in one direction, which is opposite to the working direction of the winding roller.
Die Glocke ist mit einer Quelle für Unterdruck, auch "Vakuumquelle" genannt, und mit Bewegungsmitteln zum Öffnen und Schließen verbunden. Geeignete Vakuumquellen, z.B. Vakuumpumpen, gehören hier ebenso zum Stand der Technik, wie die erforderlichen Bewegungsmittel und bedürfen hier keiner eingehenderen Beschreibung. Der anliegende Unterdruck liegt typisch im Bereich von etwa minus 250 bis etwa minus 900 mBar.The bell is connected to a source of negative pressure, also called "vacuum source", and to means of opening and closing. Suitable vacuum sources, e.g. Vacuum pumps, belong here as well to the state of the art, as the necessary means of movement and require no detailed description here. The applied negative pressure is typically in the range of about minus 250 to about minus 900 mbar.
Der unter der Wirkung dieses Unterdrucks im Inneren der Glocke erzeugte Saugluftstrom kann ferner in der aus der oben genannten
Es ist an sich möglich, mit mehr als nur einer Glocke für das Anwickeln zu arbeiten, doch wird in der Regel aus Gründen der konstruktiven Einfachheit die Verwendung einer einzigen Glocke bevorzugt. Die Glocke bzw. jede Glocke ist dabei normalerweise zwischen einer Ruhestellung und einer Arbeitsstellung beweglich, was mit hierzu an sich bekannten Mitteln bewerkstelligt werden kann. Ferner können die zur Durchführung des erfindungsgemäßen Verfahrens bzw. die zum Betrieb der Vorrichtung erforderlichen Bewegungsabläufe in an sich bekannter Weise mit üblichen pneumatisch, hydraulisch oder elektrisch betätigten Bewegungsmitteln durchgeführt werden. Dies liegt im Bereich des Fachmännischen und bedarf hier keiner besonderen ErläuterungIt is in itself possible to work with more than one bell for wrapping, but for reasons of constructive simplicity, the use of a single bell is generally preferred. The bell or each bell is normally movable between a rest position and a working position, which can be accomplished by means known per se. Furthermore, the movements required for carrying out the method according to the invention or for the operation of the device can be carried out in a manner known per se with conventional pneumatically, hydraulically or electrically operated movement means. This is within the skill of the art and needs no particular explanation here
Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt
- Fig. 1
- eine Stirnansicht einer schematisch dargestelltenrichtung zum kontinuierlichen Aufwickeln einer laufenden Materialbahn zu Wickelrollen, auf die die Bahn wahlweise mit der einen oder der anderen Seite außenliegend aufgewickelt wird, in einem Zustand, in dem eine Wickelrolle nahezu fertig gewickelt ist,
- Fig. 2.
- die Vorrichtung nach
Fig. 1 , in der eine Wickelhülse mit angewickeltem Bahnanfang aus ihrer Anwickelstellung in ihre Stellung zum Fertigwickeln der Wickelrolle verfahren ist, - Fig.3
- einen Querschnitt durch den die Bahn zuführenden Saug- und Messerzylinder mit einer in ihrer Anwickelstellung befindlichen Wickelhülse in einem Zustand, in dem die über den Zylinder laufende Bahn mit einem Quertrennschnitt versehen ist,
- Fig. 4
- eine der
Fig. 3 entsprechende Darstellung, in der eine ausschwenkbare Mantelschale den nachlaufenden Bahnanfang zur Einführung in den die Wickelhülse umgebenden Führungskanal ausgehoben hat, - Fig. 5
- eine den
Fig. 3 und4 entsprechende Darstellung, in der der Bahnanfang in den die Wickelhülse umgebenden Führungskanal eingeführt ist, - Fig. 6
- einen Längsschnitt durch den Saug- und Messerzylinder, aus der der die Messer tragende Messerbalken ersichtlich ist,
- Fig. 7
- einen vergrößerten Ausschnitt aus
Fig. 6 , - Fig. 8
- einen Axialschnitt durch den Saug- und Messerzylinder mit Wickelhülse im ausgehobenen Zustand der Finger einer Messerschale nach
Fig. 4 , - Fig. 9
- einen vergrößerten Ausschnitt aus
Fig. 8 , - Fig. 10
- einen den
Fig: 6 und7 entsprechenden Längsschnitt durch den Saug- und Messerzylinder, der mit kreisbogenförmigen Führungen für Messerbalken versehen ist, - Fig. 11
- einen der
Fig. 10 entsprechenden Längsschnitt, bei dem der Messerbalken durch endseitige Parallellenker verschwenkbar ist, - Fig. 12
- eine schematische Darstellung eines zweiten erfindungsgemäßen Wickelverfahrens mit einer erfindungsgemäßen Wickelvorrichtung in einer ersten Wickelrichtung, wobei sich die Anwickelglocke in Ruhestellung befindet und geöffnet ist,
- Fig. 13
- eine ähnliche Darstellung wie in
Fig.12 , jedoch bei Betrieb in einer zweiten Wickelrichtung, wobei sich die Anwickelglocke in Arbeitsstellung befindet und die Schalen um eine frische Wickelhülse geschlossen sind,
- Fig. 14
- die Anwickelglocke in schematischer Darstellung mit geöffneten Schalen und
- Fig. 15
- die Anwickelglocke von
Fig. 14 mit einer von den Schalen umschlossenen und an der Wickelwalze anliegenden frischen Wickehülse,
und - Fig. 16
- die halbschematische Darstellung eines Beispiels einer erfindungsgemäßen Bahntrenntrenneinrichtung.
- Fig. 1
- an end view of a diagrammatically illustrated direction for continuously winding a moving web of material to wound rolls, on which the web is optionally wound externally on one side or the other, in a state in which a wound roll is wound almost finished,
- Fig. 2.
- the device after
Fig. 1 in which a winding tube with a wound web start is moved from its winding position into its position for the finish winding of the winding roll, - Figure 3
- a cross section through the suction and knife cylinder supplying the web with a winding tube in its winding position in a state in which the web running over the cylinder is provided with a cross-cutting cut,
- Fig. 4
- one of the
Fig. 3 corresponding representation in which a swing-out casing shell has dug the trailing edge of the web for insertion into the surrounding the winding tube guide channel, - Fig. 5
- a the
Fig. 3 and4 corresponding representation in which the web start is introduced into the surrounding the winding tube guide channel, - Fig. 6
- a longitudinal section through the suction and knife cylinder, from which the knife-carrying cutter bar is visible,
- Fig. 7
- an enlarged section
Fig. 6 . - Fig. 8
- an axial section through the suction and knife cylinder with winding tube in the excavated state of the fingers of a knife shell after
Fig. 4 . - Fig. 9
- an enlarged section
Fig. 8 . - Fig. 10
- a the
Fig. 6 and7 corresponding longitudinal section through the suction and knife cylinder, which is provided with circular arc-shaped guides for cutter bar, - Fig. 11
- one of the
Fig. 10 corresponding longitudinal section, in which the cutter bar is pivotable by end parallel armature, - Fig. 12
- a schematic representation of a second winding method according to the invention with a winding device according to the invention in a first winding direction, wherein the Anwickelglocke is in the rest position and is open,
- Fig. 13
- a similar representation as in
Figure 12 but when operating in a second winding direction, with the Anwickelglocke is in the working position and the shells are closed by a fresh winding tube,
- Fig. 14
- the Anwickelglocke in a schematic representation with open trays and
- Fig. 15
- the Anwickelglocke of
Fig. 14 with a fresh vesicle sleeve enclosed by the trays and resting against the winding roller,
and - Fig. 16
- the semi-schematic representation of an example of a web separation device according to the invention.
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Der nicht dargestellte Ständer der Wickelrolle 3 wird über Führungen 6 auf gestellfesten Stangen oder Schienen 7 in der Weise geführt, daß sich die Wickelrolle 3 entsprechend der Zunahme ihres Durchmessers von dem Saug- und Messerzylinder 1 entfernt.The stand of the winding
Soll die Bahn zu einer Wickelrolle 3 aufgewickelt werden, in der die andere Bahnseite außen liegt, läuft die Bahn 4 von der Umlenkrolle 5 in Richtung des Pfeils A über die weitere Umlenkrolle 8 auf den Saug- und Messerzylinder 1 unter Umkehr der Drehrichtung auf, wobei der entsprechende Bahnverlauf gestrichelt eingezeichnet ist.If the web is to be wound to a winding
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In
Der Wickelkern oder die Wickelhülse 2 ist mit ihren Wellenzapfen in einer Lagerschale 16 gelagert und in bekannter und nicht dargestellter Weise mit einem Antrieb versehen. Aus
Der Saug- und Messerzylinder 1 besitzt einen Stahlmantel 20, der durch Stirnscheiben 21 geschlossen ist, der die den Saug- und Messerzylinder lagernden und antreibenden Wellenzapfen 22 trägt. Der Stahlmantel 20 ist in axial verlaufenden Reihen mit Saugluftbohrungen 23 versehen. Der Innenraum des Saug- und Messerzylinders 1 ist durch eine Leitung und eine Drehdurchführung in bekannter Weise an eine Saugluftquelle angeschlossen.The suction and
Der Mantel 20 des Saug- und Messerzylinders 1 ist mit einem vorzugsweise aufvulkanisiertem Überzug 24, den die Saugbohrungen 23 ebenfalls durchsetzen, aus Gummi oder einem anderen elastomeren Material versehen.The
Der Stahlmantel 20 einschließlich der diesen einfassenden Beschichtung 24 ist mit einem axial verlaufenden Schlitz 25 versehen, den Messer 26 zum Durchtrennen der Bahn 4 durchsetzen. Der Schlitz 25 ist von Kanten des Stahlmantels begrenzt, die in gleichen Abständen mit in Umfangsrichtung frei auslaufenden Aussparungen 28 versehen sind. In diesen Aussparungen 28 liegen entsprechend dem Radius des Saug- und Messerzylinders gekrümmte fingerartige Platten 29, die im eingeschwenkten Zustand die Aussparungen 28 verschließen. Die Platten 29 sind ebenfalls von der aufvulkanisierten Gummischicht 24 überdeckt, die aber mit den Seitenkanten der Platten 29 fluchtend mit in Umfangsrichtung verlaufenden Trennschnitten versehen ist, so daß die Platten 29 an ihren inneren Enden nur durch die Gummischicht 24 schwenkbar mit dem Stahlmantel 20 verbunden sind. Die ausschwenkbaren Platten 29 sind mit angeschweißten Stößeln 30 versehen, die durch eine axial verlaufende Stange 31 miteinander verbunden sind. Mit der Stange 31 ist die Kolbenstange 32 eines Pneumatikzylinders 33 schwenkbar verbunden, der an eine Lasche 34 angelenkt ist, die mit dem inneren Abschnitt 35 des Wellenzapfens 22 verschweißt ist. Dem Pneumatikzylinder 33 wird über nicht dargestellte Drehdurchführungen zu seiner Betätigung Druckluft zugeführt.The
Die Pneumatikzylinder 33 sind doppelt vorhanden, und zwar zum Aus- und Einschwenken der fingerartigen Platten 29 beidseits des Schlitzes 25.The
Mit den die fingerartigen Platten 29 einfassenden rostartig angeordneten Stegen 40, deren Stirnseiten den Spalt 25 begrenzen, sind die Schenkel 41, 42 eines U-förmigen Profils 43 verschweißt, in dem ein Messerbalken 44 geführt ist. Der Messerbalken 44 ist in gleichen Abständen mit Messern 45 mit dreieckförmigen Schneiden 46 versehen, die der Quertrennung der Bahn 4 dienen. Der Messerbalken 44 ist im Bereich seines vorderen und hinteren Endes beidseits mit Rollen 47 versehen, die in trapezförmigen Führungsnuten 48 geführt sind, die in die inneren Flanken der Schenkel 41, 42 des Profils 43 eingearbeitet sind. Der Messerbalken 44 ist durch einen Lenker 50 pleuelartig an einen an der Stirnwand 21 des Saugund Messerzylinders 1 schwenkbar gelagerten Hebel 51 angelenkt, der zu seiner hin- und hergehenden Verschwenkung seinerseits an die Kolbenstange 54 eines Pneumatikzylinders 53 angelenkt ist, der in einer Hülse 55 schwenkbar gelagert ist, die in die Stirnwand 21 eingeschweißt ist.With the finger-
Durch entsprechende Axialverschiebung des Messerbalkens 44 über den Antrieb 50 bis 55 werden die Messer 45 dadurch aus dem Spalt 25 ausgehoben, in axialer Richtung verfahren und wieder in den Spalt 25 eingefahren, daß die Rollen 47 die Anlaufschrägen der trapezförmigen Führungen 48 hochlaufen, über den gerade verlaufenden mittleren Abschnitt in axialer Richtung verfahren werden und sodann durch Ablauf auf der anderen schrägen Flanke wieder eingezogen werden. Um einen durchgehenden Schnitt auszuführen, sind die mittleren zu der Achse des Saugund Messerzylinders parallel verlaufende Abschnitte der Führungen 48 mindestens so lang ausgeführt wie der Abstand der Messer 45 voneinander.By appropriate axial displacement of the
Die Schalen 11, 12 des die Wickelhülse 2 einfassenden Gehäuses 10 sind um eine gemeinsame Achse 60 schwenkbar gelagert, die mit Tragplatten 61 verbunden sind, die konzentrisch zu der Mittelachse 62 der Wickelhülse 2 schwenkbar gelagert sind. Zur Verschwenkung der Tragplatten 1 sind diese über Führungsrollen 63 in einer stellfesten Führung 64 geführt, die konzentrisch zu der Achse 62 gekrümmt ist. Zur Verschwenkung der Schalen 11, 12 aus ihren in durchgezogenen Linien dargestellten Stellungen in die gestrichelten Stellungen 11', 12' sind die Schalen 11, 12 an ihren Außenseiten mit Lenkern 66, 67 gelenkig verbunden, deren anderen Enden gelenkig miteinander und um die gemeinsame Schwenkachse 68 schwenkbar mit der Kolbenstange eines Pneumatikzylinders 69 verbunden sind, der gelenkig mit den Tragplatten 61 verbunden ist. Durch entsprechende Betätigung des Pneumatikzylinders 29 lassen sich die Gehäuseschalen 11, 12 zur Freigabe der Wickelhülse 2 ausschwenken und zur Bildung des ringförmigen Führungskanals einschwenken.The
Die Gehäuseschalen 11, 12 sind jeweils in Reihen mit Saugluftstutzen 70, 71 versehen, durch die je nach Drehrichtung des Saug- und Messerzylinders und der Wickelhülse Luft angesaugt wird, um das umschlingende Herumlegen des Bahnanfangs in dem Führungskanal um die Wickelhülse 2 herum zu unterstützen.The
Statt der Saugluftstutzen 70, 71 können auch die gestrichelten in Reihen angeordneten Blasluftdüsen 72, 73 vorgesehen werden, durch die in den ringförmigen Führungskanal Blasluft eingeblasen werden kann, um in entsprechender Weise den Bahnanfang umschlingend um die Wickelhülse 2 herumzuführen.Instead of the
Aus
Wie aus
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Bei dem Ausführungsbeispiel nach
Bei dem Ausführungsbeispiel nach
Vorausschickend ist zu den
Gemäß dem in
Zur Einleitung des Anwickelns nimmt der erste Schwenkarm 115' eine frische Wikkelhülse 111 auf, die in an sich bekannter Weise einen Wickelkern besitzt und aus einem (nicht dargestellten) Magazin mit einer (nicht dargestellten) Fördereinrichtung in das Ende des Schwenkarmes 115' eingelegt wird. Die Wickelhülse kommt dabei in Kontakt mit der Wickelwalze 112 oder sehr nahe an diese und wird von dieser und/oder einem eigenen (nicht dargestellten) Zentralantrieb der Hülse bzw. deren Kern in
Da in dem in
Es ist zu betonen, daß die zweite Wickelstation in den
Ebenso ist es bei der Durchführung der vorliegenden Erfindung möglich, die Wikkelwalze auf einem Schlitten zu führen und den Folienwickel in der zweiten Wickelstation stationär zu halten, wie dies in der
Die Vorteile der Einstellbarkeit des Druckes (Lineardruck, z.B. in kg/m), mit dem der Folienwickel 112, 123 in der zweiten Wickelstation an der Wickelwalze 112, 122 anliegt, auf einen Wert zwischen Null und einigen hundert kg sind in der oben genannten
Die ebenfalls für die vorliegende Erfindung bevorzugte Steuerung des Wickelzuges und die hierzu geeigneten apparativen Maßnahmen sind in der oben erwähnten
Wie weiter unten noch eingehender erläutert, wird nun durch Betätigung der einen Trenneinrichtung 126 bzw. 126a der noch auf den Folienwickel 123 auflaufende Bahnabschnitt abgetrennt und das dabei entstehende vordere Ende des nachfolgenden Bahnabschnitts in der Glocke 129 an der frischen Wickelhülse 111 im Inneren der Glocke 129 angewickelt.As will be explained in more detail below, 126 and 126a of the still running on the film roll 123 web section is now separated by actuation of a separator and the resulting front end of the following track section in the bell 129 on the fresh winding
Nunmehr kann der fertige Folienwickel 123 durch Betätigung des Schwenkarmes 127 in die durchbrochen gezeichnete Position 127b, d.h. in die Entladeposition 123a, gebracht und abtransportiert werden. Der Schwenkarm 127 bewegt sich dann aus der durchbrochen eingezeichneten Position 127b in die ebenfalls durchbrochen gezeichnete Position 127a und ist nun zur Übernahme der in der Glocke 129 angewickelten Wickelhülse bereit.Now, the finished film roll 123 can be moved to the broken position 127b, i.e., by actuating the
Zur Einleitung der Überführung der angewickelten Wickelhülse aus der ersten in die zweite Wickelphase muß die Glocke 129 geöffnet und der Schwenkarm 125 in die durchbrochen gezeichnete Position 125a gebracht werden. Nach der Abgabe der angewickelten Folienhülse kehrt der Schwenkarm 125 wieder in die senkrechte Position gemäß
Nahe den freien unteren Enden E1, E2 der Schalen 131, 132 sind die Saugschlitze 319,329 angeordnet, und jeder Hohlraum 310,320 hat am oberen Ende einen Durchgang 324, 325 zur Verbindung mit dem Innenraum 330 des Trägerrohres 133. Es versteht sich, daß der Träger für die Glocke nicht notwendigerweise auch als Verbindung mit der Vakuumquelle dienen muß. Diese Verbindung kann auch durch eine separate und beispielsweise flexible Leitung bewerkstelligt werden, die gegebenenfalls mit den (zur Vereinfachung der Darstellung in den Figuren weggelassenen) Mitteln zur Bewegung der Glocke von Arbeitsteilung in Ruhestellung und zum Öffnen und Schließen der Schalen verbunden ist. Die Einrichtungen für die Bewegung der Glocke von einer "Ruhestellung" in eine Arbeitsteilung ist für die Erfindung bevorzugt aber nicht kritisch. Hingegen ist die Fähigkeit der Schalen zum Öffnen und Schließen der Glocke wesentlich, weil dies die Einführung der frischen Wickelhülse in die erste Wickelstation (oder "Anwickelstation") und die Überführung der angewickelten Wickelhülse aus der ersten in die zweite Wickelstation (oder "Fertigwickelstation") erforderlich ist.Near the free lower ends E1, E2 of the
Als "Saugschlitze" werden hier sowohl kontinuierliche als auch diskontinuierliche Durchbrechungen verstanden, d.h. der "Saugschlitz" kann auch eine gleichwirkende Lochreihe sein.As "suction slots" are understood here both continuous and discontinuous openings, i. the "suction slot" can also be an equivalent row of holes.
Zur Steuerung des Saugluftstromes ist im vorliegenden Beispiel im Träger 133 ein Schieber 334 angeordnet, um die Verbindung mit der Vakuumquelle entweder für beide Schalen 131, 132 zu sperren (wenn sich die Glocke in Ruhestellung oder auf dem Weg von oder zu ihrer Arbeitsstellung befindet), oder (in Arbeitsstellung gemäß
Von der Wickelwalze ist in
Bei Betätigung der Schneideinrichtung 136 wird in einer unten noch genauer erläuterten Weise die Folienbahn B durch einen quer zur Bewegungsrichtung (entgegen dem Uhrzeigersinn, Pfeil R) verlaufenden zusammenhängenden Schnitt getrennt. Hierzu ist eine Mehrzahl von Trennelementen 364 gemeinsam in Richtung des Doppelpfeils in und durch den Schlitz 360 beweglich angeordnet. Zur Erzeugung des zusammenhängenden und quer über die Bahn verlaufenden Schnittes werden die Trennelemente zum Bewirken der Bahntrennung sowohl radial (d.h. in Richtung des Doppelpfeils) nach außen als auch axial (d.h. in Richtung senkrecht zur Zeichenebene) bewegt. Die Bewegungslänge in axialer Richtung ist so bemessen, daß jedes Trennelement mindestens den Abstand zum benachbarten Trennelement durchwandert.Upon actuation of the
Die Kombination einer Bewegung in radialer und axialer Richtung ist für eine glatte Bahntrennung bei der Verarbeitung von Folienbahnen wesentlich, weil diese in der Regel eine gewisse Dehnbarkeit besitzen und eine Tendenz haben, von einer auf sie ohne Abstützung der Folie einwirkenden Klinge auszuweichen. Gegenüber spitzen Trennelementen ist diese Neigung weniger ausgeprägt, d.h. eine Perforation ist problemloser, für eine rasche und glatte Bahntrennung aber noch nicht ausreichend. Die erforderliche zusätzliche Trennwirkung wird durch die axiale Bewegung der vorzugsweise mit scharfen Seitenkanten versehenen spitzen Trennelemente bewirkt, wie weiter unten noch eingehender erläutert.The combination of radial and axial movement is essential for smooth web separation in the processing of film webs because they typically have some ductility and tend to deflect from a blade acting on them without supporting the film. Opposite pointed dividers, this tendency is less pronounced, ie a perforation is easier, for a quick and smooth web separation but not sufficient. The required additional separation effect is due to the axial movement the preferably provided with sharp side edges pointed separating elements causes, as explained below in more detail.
Durch denn Trennschnitt wird das hinteres Ende des vorangehenden Folienabschnitts gebildet, das an der Anwickelglocke 129 vorbeigezogen wird und auf den (hier nicht dargestellten) fertigen Folienwickel aufläuft. Gleichzeitig entsteht durch den Schnitt das vordere Ende des nachfolgenden Bahnabschnitts, der auf der Wikkelhülse 121 angewickelt werden soll.By separating cut the rear end of the preceding film section is formed, which is pulled past the Anwickelglocke 129 and runs on the (not shown here) finished film roll. At the same time created by the cut the front end of the following track section, which is to be wound on the
Es liegt im Rahmen der Erfindung, in einer die Schneideinrichtung 136 umgebenden Kammer 361 einen Überdruck zu erzeugen, um das vordere Ende der nachfolgenden Materialbahn in radialer Richtung nach außen zu beschleunigen um die Haftung an der Wickelwalze mindestens zu verringern. Kritisch ist diese Maßnahme jedoch nicht.It is within the scope of the invention to generate an overpressure in a
Wesentlich ist, daß das bei der Bahntrennung gebildete vordere Ende der nachfolgenden Materialbahn B im Bereich der Glocke 129 durch lokalen Unterdruck zwischen Wickelhülse 121 und dem vorderen Ende der Bahn B an der Wickelhülse angelegt und angewickelt wird, und zwar erfindungsgemäß auch bei bi-direktionalem Betreib der Wickelvorrichtung.It is essential that the formed in the web separation front end of the following web B is applied and wound in the region of the bell 129 by local negative pressure between the winding
Im allgemeinen wird hierzu die jeweils "abstromseitige" d.h. in
Als Folge des so im Innenraum 330 der Schale 131 erzeugten Unterdrucks wird Umgebungsluft durch die Spalte 351, 352 zwischen der Bahn B auf der Wickelwalze 134 angesogen und erzeugt in den Kanälen 136, 137 einen durch den Saugschlitz 319 der Schale 131 gehenden Saugluftstrom. Bei einer Luftströmungsgeschwindigkeit, die wie bereits angedeutet vorzugsweise mindestens doppelt so groß ist, wie die Laufgeschwindigkeit der Bahn, wird das abgetrennte vordere Ende des nachfolgenden Bahnabschnitts in den Kanal 136 und durch den Kanal 137 gezogen und legt sich bei fortlaufender Drehung der Wickelhülse 121 an diese. Allgemein ist die gemeinsame Länge der Kanäle 136, 137 so bemessen, daß sie mindestens 270° des Umfangs der Wickelhülse umfassen. Durch Anordnung des Saugspalts 319 der Schale 131 nahe an deren unterem Ende E1 (
Durch die fortgesetzte Drehung der Wickelhülse 121 fixiert jede nachfolgende Lage der Folienbahn B, die auf die Wickelhülse 121 aufläuft, die bereits darauf befindlichen Lagen, so daß eine zugfeste Verbindung zwischen der Folienbahn B und der Wickelhülse 121 zustande kommt, d.h. der kritische Teil des Anwickelvorgangs abgeschlossen ist und die mit mehreren Lagen der Foliebahn angewickeite Hülse 121 wie oben erläutert aus der ersten in die zweite Wickelstation überführt werden kann.As a result of the continued rotation of the winding
Bei umgekehrter Drehrichtung der Wickelwalze 134 (d.h. im Uhrzeigersinn und entgegen der Richtung R) verläuft der Anwickelvorgang in analoger Weise, d.h. das vordere Ende der Bahn B wird mit Hilfe des Saugluftstromes angewickelt, der wiederum durch die Spalte 351, 352 angesogen wird, diesmal aber durch Betätigung der Schale 132, indem der zugehörige Innenraum 320 über den zur Freigabe der 324 umgestellten Schieber 334 mit der Vakuumquelle verbunden wird und der dadurch entstehende Saugluftstrom zuerst in den Kanal 137, dann den Kanal 136 und schließlich durch den Saugspalt 329 am freien unteren Ende E2 der Schale 132 verläuft. Der Trennvorgang wird dabei von der Trenneinrichtung bewirkt, die als nächste auf den Spalt 352 zuläuft.In the reverse direction of rotation of the winding roller 134 (ie clockwise and counter to the direction R), the Anwickelvorgang runs in an analogous manner, ie the front end of the web B is wound by means of the suction air stream, which in turn is sucked through the
Die Wirkung einer erfindungsgemäßen Bahntrennvorrichtung 140 beruht im wesentlichen darauf, daß mehrere, z.B. über einen Schieber 142 bewegungsverbundene spitze Trennelemente 141 in radialer Richtung (d.h. die Richtungen des Doppelpfeils MR) durch den (in
Dies kann in einer konstruktiv einfachen und deswegen bevorzugten Weise dadurch erreicht werden, daß die Trennelemente 141 auf dem als Führungskulisse ausgebildeten Schieber 142 angeordnet sind, der in (nicht dargestellter Weise) so geführt ist, daß er von den Ausnehmungen 143 und den festen Führungsbolzen 144 bei jeder Betätigung des Antriebs 148 in Richtung des Doppelpfeils MA zunächst in radialer Richtung nach außen zum Kontakt aller spitzen Trennelemente 141 mit der Folienbahn gebracht, dann in axialer Richtung seitlich und schließlich wieder in radialer Richtung nach innen bewegt wird. Die spitzen Trennelemente 141 bewirken hierbei zunächst eine Perforierung und unmittelbar anschließen dank der axialen Bewegung mittels der Schneidkanten 411, 412 eine Durchschneiden der Folienbahn. Durch die weitere Bewegung des Kulissenschiebers 142 bis zum Anschlag des Stiftes 144 am entgegengesetzten Ende der Ausnehmung 143 werden die Schneidelemente 141 schließlich wieder soweit zurückgezogen, daß die Folienbahn B mit den Trennelementen 141 nicht in Berührung kommt.This can be achieved in a structurally simple and therefore preferred manner in that the separating elements 141 are arranged on the
Wie aus
Es versteht sich, daß der Antrieb 148 vorzugsweise eine schlagartige Bewegung erzeugt, die in Sekundenbruchteilen, typisch weniger als 0,1 sec, abgeschlossen ist. Dies bestimmt die Dauer des Trennvorgangs, der wiederum der Bahnlaufgeschwindigkeit angepaßt werden kann.It is understood that the
Es ist ohne weiteres ersichtlich, daß die obige Beschreibung spezieller bevorzugter Ausführungsformen der Erfindung von Fachleuten in verschiedener Hinsicht modifiziert werden kann. Der Anwendungs- und Geltungsbereich der Erfindung bestimmt sich daher durch die fachgerechte Auslegung der nachfolgenden Ansprüche.It will be readily apparent that the above description of specific preferred embodiments of the invention may be modified by those skilled in the art in various ways. The scope of application of the invention is therefore determined by the professional interpretation of the following claims.
Claims (6)
- An apparatus (101) for winding a continuously running material web (B) onto a sequence of winding tubes (111) using a winding roller (112), at least one deflecting roller (114), at least one severing apparatus (116) and a device to wind up by a suction air flow at the winding tube (111) a front end of the running batter web (B) formed on actuation of the severing apparatus, characterised in that the winding apparatus (101) has a bell (119, 129) including the respective winding tube (111) which is to be wound onto and formed by two elongate shells (131, 132) as a device for the winding on for the bidirectional operation for the winding on.
- An apparatus in accordance with claim 1, characterised in that each of the shells (131, 132) has, close to its respective free end (E1, E2), a suction slit (319, 329) extending at least approximately over the length of the winding tube (111).
- An apparatus in accordance with either of the claims 1 or 2, characterised in that the bell (119, 129) has devices (311, 312; 320, 321; 325; 334; 130) to actuate a respective one of the suction slits, preferably the respective suction slit (31) lying downstream in the direction or rotation (R) of the winding roller (112) for the winding on.
- An apparatus in accordance with one of the claims 1 to 3, characterised in that the severing apparatus (116) is arranged inside the winding roller (112).
- An apparatus in accordance with one of the preceding claims, characterised in that the winding roller (112, 134) has a plurality of openings (341) and is connected to a source for vacuum in order to keep a material web (B) contacting the winding roller 112, 134) in strong contact with the winding roller (112).
- An apparatus in accordance with one of the preceding claims, characterised in that, in the closed state of the bell (129), the shells (131, 132) together with a winding tube (111) surrounded by the bell (129) form an approximately ring-shaped passage for the guidance of a suction air stream around the winding tube (111) to guide the suction air stream around at least about 270° of the circumference of the winding tube (111).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10038423 | 2000-08-07 | ||
CH21252000 | 2000-10-31 | ||
DE10059338A DE10059338A1 (en) | 2000-08-07 | 2000-11-29 | Method to cut moving length of material and fasten following front length end to core has guide sleeve driven in opposite directions to wind length end from left or right dependent upon desired front |
EP01969559A EP1307393B1 (en) | 2000-08-07 | 2001-07-31 | Method and device for cutting through a running web of material and for fixing the start of the following web section on a core |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01969559A Division EP1307393B1 (en) | 2000-08-07 | 2001-07-31 | Method and device for cutting through a running web of material and for fixing the start of the following web section on a core |
EP01969559.2 Division | 2001-07-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1640300A2 EP1640300A2 (en) | 2006-03-29 |
EP1640300A3 EP1640300A3 (en) | 2006-06-07 |
EP1640300B1 true EP1640300B1 (en) | 2012-07-11 |
Family
ID=35705347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05025665A Expired - Lifetime EP1640300B1 (en) | 2000-08-07 | 2001-07-31 | Device for winding a continuous material web |
Country Status (1)
Country | Link |
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EP (1) | EP1640300B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2930767B1 (en) * | 2008-04-30 | 2011-05-13 | Goss Int Montataire Sa | SHEET TRANSPORT CYLINDER, TRANSPORT DEVICE PRESS PRESS AND USE THEREOF |
DE102020115007A1 (en) | 2020-06-05 | 2021-12-09 | Brückner Maschinenbau GmbH & Co. KG | Foil winding system and composite of a foil stretching machine and such a foil winding system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1154662A (en) * | 1967-02-02 | 1969-06-11 | Agfa Gevaert Nv | Web Winding Apparatus. |
DE1777120B1 (en) * | 1968-09-10 | 1971-05-19 | Maschb Pieper Gmbh | Device for pressing a metal strip to be wound between cutting discs |
IT1083127B (en) * | 1977-06-02 | 1985-05-21 | Bugnone Aldo | FINAL GROUP OF A MACHINE FOR TREATMENT OF A TAPE AS FOR EXAMPLE OF A PRINTING MACHINE |
US4993652A (en) * | 1989-11-06 | 1991-02-19 | The Black Clawson Company | Continuous winder for web materials |
DE4104082C2 (en) * | 1991-02-11 | 1994-07-14 | Stahlkontor Maschinenbau | Device for the optional wrapping of winding sleeves in one or the other wrapping direction of rotation through a web in multiple winding turning machines |
DE19606755A1 (en) * | 1996-02-23 | 1997-08-28 | Voith Sulzer Papiermasch Gmbh | Winding machine for winding or unwinding a material web |
ATE223347T1 (en) * | 1997-07-30 | 2002-09-15 | Windmoeller & Hoelscher | WINDING METHOD, WEB SEPARATION DEVICE AND WEB WINDER |
-
2001
- 2001-07-31 EP EP05025665A patent/EP1640300B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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EP1640300A2 (en) | 2006-03-29 |
EP1640300A3 (en) | 2006-06-07 |
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