EP4377248A1 - Wickler zum wickeln einer materialbahn - Google Patents
Wickler zum wickeln einer materialbahnInfo
- Publication number
- EP4377248A1 EP4377248A1 EP22751111.0A EP22751111A EP4377248A1 EP 4377248 A1 EP4377248 A1 EP 4377248A1 EP 22751111 A EP22751111 A EP 22751111A EP 4377248 A1 EP4377248 A1 EP 4377248A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- winder
- film
- station
- roll
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
-
- 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
- B65H19/2284—Simultaneous winding at several stations, e.g. slitter-rewinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/414—Winding
- B65H2301/4148—Winding slitting
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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
- B65H2301/417—Handling or changing web rolls
- B65H2301/4171—Handling web roll
- B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
- B65H2301/41732—Handling web roll by central portion, e.g. gripping central portion by crane
-
- 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
- B65H2301/417—Handling or changing web rolls
- B65H2301/4171—Handling web roll
- B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
- B65H2301/41734—Handling web roll by central portion, e.g. gripping central portion involving rail
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2408/00—Specific machines
- B65H2408/20—Specific machines for handling web(s)
- B65H2408/23—Winding machines
- B65H2408/236—Pope-winders with first winding on an arc of circle and secondary winding along rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
Definitions
- the invention relates to a winder for weaving a web of material.
- winding up the film web is a complicated process step, since plastic films are produced in a large variety with very different properties.
- the winding behavior is influenced in many ways, so that a corresponding winding device must be able to be flexibly adapted to the behavior of the material web to be wound.
- plastic films typically have a diameter of 50 to 2000 mm and a width of 10 to 6000 mm.
- the thickness of the plastic films can range from a few micrometers to the millimeter range.
- the formulation of plastic films is based, for example, on polyolefins (such as PE polyethylene or PP polypropylene) and ranges from mono-extruded films consisting of a single layer to co-extruded multi-layer films with three, five or more layers. Depending on the production technology, a distinction must also be made between flat and tubular film webs.
- Different core types hard paper, plastic, steel
- winding cores For special applications, it is also wound onto a steel shaft without a sleeve, which can then be removed after the winding process.
- the finished film rolls are usually removed from the winder without interrupting the film production process using special roll changing systems.
- the finished rolls of film are then delivered, for example, to end users (e.g. for processing as packaging material) or are fed to further processing, e.g. B. in coating and stretching systems or in printing machines.
- a winder for weaving a web of material usually consists of a feed station for conveying the web of material into the winder, a winding station for winding the web of material conveyed from the feed station onto a roll of film, a changing station for changing the web of material on the fly from the finished roll of film a new wrapping sleeve and a transfer station in which the finished roll of film can be removed from the wrapper for further processing.
- the processes in the feed station, the spooling station, the changing station and the transfer station are controlled by one or more control units.
- the film web is regularly guided over a deflection roller and then wound onto a film roll.
- a deflection roller In the winding process used in the winding station, the film web is regularly guided over a deflection roller and then wound onto a film roll.
- contact winding With contact winding, only the deflection roller is driven, with the deflection roller working as a contact roller and being pressed against the film roll.
- the contact pressure must be selected in such a way that the film roll is set in rotation and at the same time slippage is reliably avoided.
- the hardness of the film roll is also influenced by the contact pressure.
- Contact winding is therefore a simple process for insensitive foils.
- With central winding in contrast to contact winding, the film roll is driven. As a rule, the deflection roller is not set against the film roll, but is operated at a distance from the film roll with a defined winding gap. In this case, the term "gap winding" is also used.
- the central winding is particularly suitable for sensitive foils that are to be wound softly and for which contact winding is out of the question.
- the contact center winding is a combination of contact winding and center winding, so that now both the deflection roller and the film roll are driven.
- This method a wide variety of film types can be accommodated by adjusting the web tension and contact forces. Winding with a defined winding gap or the application of a contact force regulated within narrow limits are also possible.
- the central contact winding thus allows a winder to be operated with maximum flexibility.
- the center of the film roll shifts along a horizontal guide rail as the roll diameter increases.
- DIN rail winders often work with the method of contact winding, but depending on the machine equipment, central winding or contact-central winding can also be used.
- the DIN rail winder is based on a simple principle and is therefore widely used as a winder.
- the film roll is held in a frame-fixed rotating arm, which swings away from the contact roller as the roll diameter increases.
- the roll weight can be used in contact winding mode to generate the contact pressure.
- the contact roller can be mounted so that it can move horizontally in order to enable sensitively adjustable contact pressures.
- a central contact winding is also possible with a second drive. After wrapping is complete, the rotary arm is still used to deposit the finished roll of film from the wrapping station to the transfer station.
- Turret winder In the turret winder, two winding shafts are arranged on a rotating turning disc. Once the desired roll diameter has been reached for the film roll, the turntable pivots through 180° during the ongoing winding process and brings an empty winding core into the winding position. The film web is automatically cut off and the beginning of the film web is wound onto the new core. The finished roll of film is removed from the swung away winding position.
- Turret winders usually work according to the central winding method. In addition to winders with two winding positions on the turning disc, turret winders with up to four winding positions are also used for high-speed applications (e.g. short stretch film rolls).
- a winding shaft is held on a circular turning disc.
- a second winding shaft is held in a rotary arm which can be pivoted independently of the turning disc.
- the object of the invention is therefore to provide a winder in which safe transport of the film roll can be guaranteed in the transfer station.
- the winder according to the invention for winding a material web comprises a feed station for conveying the material web into the winder, a winding station for winding the material web conveyed from the feed station onto a film roll, a changing station for carrying out a flying change of the material web from the finished film roll to a new winding sleeve, and a transfer station in which the finished roll of film can be removed from the winder for further processing, the transfer station having a hoist that is connected to at least one flat belt for raising or lowering the finished roll of film.
- the hoist consists of several load hooks, each with an eyelet into which one end of the winding sleeve can be latched.
- a driven winding pulley is provided for each flat belt.
- Wobble disk can be driven by a servomotor.
- Material web consists of a plastic film.
- FIG. 1 shows a schematic side view of a double mounting rail winder of a blown film extrusion system
- Fig. 2 is a schematic view of a load hook of the right
- FIG. 3 shows a schematic view of the flat belt for driving the load hook according to FIG.
- FIG. 1 shows a schematic side view of a double support rail winder of a blown film extrusion plant.
- the upstream blown film extrusion system supplies a film tube 101, which is guided over a web center control 102 and then passes through a pretreatment 103 to increase the surface tension. Thereafter, the preference 104 promotes the film tube to the
- the carrier rail winders 131, 132 consist of a feed station 133, 134 for conveying the material web into the winder, a winding station 135, 136 for winding the material web conveyed from the feed station onto a film roll, a changing station 139, 140 for carrying out a flying Changing the material web from the finished film roll to a new winding sleeve and a transfer station 137, 138 in which the finished film roll can be removed from the winder for further processing.
- the control unit calculates the required drive values in the mounting rail winder 131, 132 in order to regulate the web tension to a predetermined desired value.
- longitudinal cutting devices 108, 109 can be provided in the feed station 133, 134, which interact with spreader rollers in order to divide the material web into a plurality of parallel panels and to finish them.
- the core of the winding station 135, 136 is formed by the deflection roller 112, 113 and the film roll 114, 115.
- the film roll 114, 115 is along a horizontal line Guide rail adjustable depending on the roll diameter.
- a changing station 139, 140 with functions for automated roll changing is also provided directly at the winding station 135, 136.
- This also includes, in particular, an axially displaceable scraper blade, which cuts through the material web when it reaches the diameter of the finished film roll.
- the end of the film produced by the cut is automatically wound onto the new core using suitable winding mechanisms. For this purpose, new sleeves are held in stock together with winding shafts in the magazine 110, 111 and brought into the winding position fully automatically when the roll is changed.
- the transfer station 137, 138 is responsible for transporting away the finished film rolls 116, 117, which often weigh several tons.
- placement arms 118, 119 are provided in addition to the crane systems 120, 121 according to the invention.
- the crane systems 120, 121 according to the invention are also used to store new sleeves in the magazine 110, 111 for renewed use. A detailed description of the crane systems 120, 121 according to the invention is given with reference to FIGS. 2 and 3.
- FIG. 2 shows a schematic view of a load hook 121 of the right carrier rail winder 132 according to FIG.
- the load hook 212 hangs on a flat belt 205 which can be wound onto a winding pulley 204 .
- the winding disk 204 can be driven via the shaft 203 via a servo motor 202 .
- a rotary encoder (not shown in detail) is integrated in the servo motor 202, via which the absolute angle of rotation of the winding disk 204 and thus also the absolute vertical position of the load hook 121 can be determined.
- Servo motor 202 can thus move the load hook 121 in the direction of arrow 206 to any desired position.
- the servo motor 202 with the winding disc 204 is mounted on a traverse 201 and can be moved by a drive, not shown, in the direction of the
- the traverse 201 thus extends in the axial direction of the roll of film in question.
- the traverse 201 is in turn movably mounted on the frame of the support rail winder 132 and can be moved to a desired position by a drive, which is also not shown in detail, in the direction of the arrow 208 .
- FIG. 3 shows a schematic view of the flat belt 205 for driving the load hook 121 according to FIG. 2.
- the outer material 301 of the flat belt 205 consists of an abrasion-resistant and durable material such as polyurethane.
- Polyurethanes are plastics that result from the polyaddition reaction of dialcohols (diols) or polyols with polyisocyanates.
- the urethane group (-NH-CO-O-) is characteristic of polyurethanes.
- a compact steel cable strand construction 302 is embedded in the outer material 301. With this construction, the flat belt 205 has a small bending radius with high tensile strength and at the same time is very low-corrosion and practically maintenance-free.
Landscapes
- Replacement Of Web Rolls (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021119894 | 2021-07-30 | ||
| PCT/EP2022/071041 WO2023006804A1 (de) | 2021-07-30 | 2022-07-27 | Wickler zum wickeln einer materialbahn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4377248A1 true EP4377248A1 (de) | 2024-06-05 |
Family
ID=82799951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22751111.0A Pending EP4377248A1 (de) | 2021-07-30 | 2022-07-27 | Wickler zum wickeln einer materialbahn |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4377248A1 (de) |
| WO (1) | WO2023006804A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146667A (ja) * | 1974-10-18 | 1976-04-21 | Kataoka Kikai Seisakusho Kk | Makitorikinoshiitoroorujidotoridashisochi |
| DE10207956A1 (de) * | 2002-02-25 | 2003-10-09 | Rosenheimer Foerderanlage | Elektrohängebahn |
| FI121463B (fi) * | 2007-10-15 | 2010-11-30 | Metso Paper Inc | Kuiturainan valmistus- ja/tai käsittelylinja ja menetelmä kuiturainan valmistus- ja/tai käsittelylinjan yhteydessä |
| DE102009001171A1 (de) * | 2009-02-26 | 2010-09-02 | Voith Patent Gmbh | Anordnung von Rollenschneideinrichtung und Verfahren zum Betreiben einer Anordnung von Rollenschneideinrichtung |
-
2022
- 2022-07-27 WO PCT/EP2022/071041 patent/WO2023006804A1/de not_active Ceased
- 2022-07-27 EP EP22751111.0A patent/EP4377248A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023006804A1 (de) | 2023-02-02 |
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