EP2782858A1 - Enrouleur pour une bande de matière continue - Google Patents

Enrouleur pour une bande de matière continue

Info

Publication number
EP2782858A1
EP2782858A1 EP12794847.9A EP12794847A EP2782858A1 EP 2782858 A1 EP2782858 A1 EP 2782858A1 EP 12794847 A EP12794847 A EP 12794847A EP 2782858 A1 EP2782858 A1 EP 2782858A1
Authority
EP
European Patent Office
Prior art keywords
winding
roll
contact roller
wrap angle
pendulum arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12794847.9A
Other languages
German (de)
English (en)
Other versions
EP2782858B1 (fr
Inventor
Carlos Martinez
Rolf Kammann
Carl Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWISS WINDING INVENTING AG
Windmoeller and Hoelscher KG
Original Assignee
SWISS WINDING INVENTING AG
Windmoeller and Hoelscher KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SWISS WINDING INVENTING AG, Windmoeller and Hoelscher KG filed Critical SWISS WINDING INVENTING AG
Priority to PL12794847T priority Critical patent/PL2782858T3/pl
Publication of EP2782858A1 publication Critical patent/EP2782858A1/fr
Application granted granted Critical
Publication of EP2782858B1 publication Critical patent/EP2782858B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • 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
    • 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
    • B65H2511/22—Distance
    • 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 present invention relates to a method for producing a coil of a material web of flexible material according to the preamble of claim 1 and a winder for carrying out this method according to the preamble of claim 6.
  • plastic films are produced in an extraordinary variety of compositions and correspondingly with a wide variety of properties, which then also have to influence the winding behavior and must be considered accordingly during the winding.
  • the respective production speed and the number of coils to be produced in a production run are parameters which must be taken into account for a qualitatively sufficient production with at the same time reasonable costs.
  • Typical processing speeds range from 2 to 1000 m / min, while the finished wound bales may have a diameter of 50 to 2000 mm and a width of 10 to 6000 mm, respectively.
  • the thicknesses can range from a few ⁇ to the millimeter range.
  • foils with a thickness of 8 pm to 25 pm can be mentioned.
  • 15 pm to 25 pm which are wound at a speed of 100 m / min and a width of about 300 mm to 770 mm on a winding shaft with quadruple use (ie on a winding shaft four cores are plugged and so four coils wrapped parallel next to each other).
  • plastic films made of polyolefins ranges from the monoextruded film consisting of a single layer to the coextruded film with three, five or more layers, wherein, for example, adhesives of various types are provided in the layers can be made, as diverse multi-layer films.
  • the adhesive contained between the plastic layers of the films ensures that the individual windings adhere to one another around the grass bale, so that the winding has stability.
  • the bale of grass is formed, when the film is unwound from the wrapping, a typical, scratching sound is produced which, depending on the adhesive, is louder or quieter.
  • Various farms require quietly releasing films, which has a corresponding influence on the overall recipe of the film.
  • the production varies between the production of only a few identical wound bales for special applications up to the mass production of the same wound bales.
  • the films themselves have different properties, which in turn must be taken into account in the winding for faultless film winding, which makes special demands on the winder parameters such as web tension, winding pressure, speed and film thickness and elasticity of the film.
  • Error-free winding taking into account the parameters mentioned above is also essential because with different formulations the finished wound film (the winder is usually immediately downstream of the extruder producing the film) still lives, since the different plastic layers still calm and the between the Trapped air or introduced substances, often the adhesives, change and are also migrate. In other words, the process of producing the films after winding is not yet completed. Not absolutely perfect winding can therefore happen that a roll later, during storage, negatively changed and unusable.
  • FIG. la shows an example of a winder 1 according to the prior art in a side view, which represents the path of the endless material web, here a plastic film 2, through the winder 1 therethrough.
  • a separate scraping unit 3 for broke is followed by a cutting unit 4 which cuts the endless film 2 lengthwise to form two separate sheets 5 and 5 ', each of the films 5, 5' for winding is guided in an associated turret unit 6,6 '.
  • the turret assemblies 6,6 ' are basically the same structure and each have three winding shafts in the illustrated embodiment, namely a first winding shaft 10,10', a second winding shaft 11,11 'and a third winding shaft 12,12'.
  • the winding shafts 10, 10 'to 12, 12' are located in different work stations, namely a charging station 13, 13 ', a winding station 14, 14' and a removal station 15, 15 '.
  • the turret assemblies 6,6 'thus form a means for supporting the winding to be wound 18,18', here as follows:
  • Each of the winding shafts 10,10 'to 12,12' passes in the cycle, the charging station 13,13 ', where they fresh cores is loaded, passes through a further rotation step of the turret units 6,6 'in the winding station 14,14', where the hubs 17 are wound with the film 2 to a winding 18 and from there into the removal station 15,15 ', where the reels 18 are removed from the turret unit 6, 6 '.
  • the figure shows a finished roll 18 in the winding station 14 and a just wound winding 18 'in the winding station 18'.
  • a contact roller 19, 19 ' contacts the winding 18, 18' and ensures in the winding station 14, 14 "the contact pressure corresponding to the respective formulation of the film Contact roller 19,19 'suspended from pendulum arms 20,20', which allows the contact roller 19,19 'according to the winding progress of the stationarily wound coil 18,18' to move accordingly.
  • the invention will be described with reference to a trained according to FIG la winder.
  • the invention is not limited to such winder (here: with Revolish pulp, wherein the contact roller is mounted on pendulum arms).
  • the invention is applicable to large or small winders having a single-use or a multiple-use,
  • Figure lb shows a section of the winder 1, namely the winding station 14 and the contact roller 19 including the storage, again seen from the side.
  • the contact roller 19 is suspended from two laterally acting pendulum arms 20 and is thus pivotable about a pivot axis 21.
  • the pendulum arms 20 allow the contact roller 19 a movement in the direction of the arrows drawn so that they can always mitwandern with the growing diameter of the coil 18 (in the present arrangement, the winding core on which the film 5 is wound, fixedly mounted).
  • a pressing unit, here a piston arrangement 23, ensures the contact pressure of the contact roller 19 corresponding to the formulation against the winding 18.
  • FIGS. 1 a and 1 b show an arrangement of the prior art which is known to the person skilled in the art.
  • the method according to the invention or the device according to the invention provides for maintaining the wrap angle of the material web traveling over the contact roller at a changeable, predetermined desired value during the progressive winding, a distortion of the wound material web or film at the location of the contact line 26 between the Contact roller 19 and the winding 18 can be suppressed or reduced.
  • Such a delay leads even with moderately sensitive formulations to an optically visible pattern in the wound film, and in the unfavorable case for wrinkling. Both means waste production.
  • FIG. 1 a schematically shows a winder according to the prior art from the side
  • FIG. 1 b shows a detail of FIG. 1 a with the contact roller
  • FIG. 2 shows a three-dimensional view of a part of the winding station, the arrangement of the contact roller and the auxiliary roller is shown according to the present invention
  • Figure 3 shows schematically the arrangement of Figure 2, wherein at the same time the difference from the prior art is shown,
  • FIGS. 4a to 4e schematically show a sequence which represents the winding process according to the invention
  • FIGS. 5a and 5b schematically show a further embodiment according to the present invention, in which the auxiliary roll is mounted on a rail
  • FIG. 6 schematically shows a further embodiment of the present invention.
  • Figure 2a shows a three-dimensional view of the inside of one pendulum arm 20 in a preferred embodiment of the present invention, in which the contact roller 19 is suspended on pendulum arms 20, as described with reference to Figure lb. Also visible is an auxiliary roller 30, which is not fixed to the pendulum arms 20, but in turn is arranged on further pendulum arms 31.
  • the other pendulum arms 31 for the auxiliary roller 30 are pivoted in the embodiment shown via a gear transmission 33, which in turn has a not shown for relieving the figure drive.
  • the pendulum arms 20,31 pivot about their common pivot axis 21.
  • the two pendulum arms 20 connected via a tube 35 and the other two pendulum arms 31 via a tube 36 with each other, which ensures their synchronous movement.
  • the tubes 35,36 are arranged coaxially with each other and also to the pivot axis 21.
  • a Masch inensteue- tion which controls the drives for the pendulum arms for the contact roller 19 and the other pendulum arms 31 for the auxiliary roller 30 operable.
  • FIG. 2b shows an embodiment of the present invention modified with respect to FIG. 2a. Shown is a three-dimensional view of the outside of the one, shown in the figure 2a pendulum arm 20, here with a gear 37, which connects the pendulum arm 20 and the other pendulum arm 31 with each other. Both pendulum arms 20, 31 have the common pivot axis 21, wherein in the figure, the tube 36 is shown, which connects the visible further pendulum 31 with the second, omitted for relief of the figure and thus not visible further pendulum.
  • the tube 35 according to FIG. 2a, which holds the pen delarm 20 connects with the opposite him (not visible in the figure) pendulum, the tube 36 would cover and is therefore also omitted to relieve the figure.
  • the contact roller 19 is mounted between the pendulum arm 20 and the invisible pendulum
  • the auxiliary roller 30 is mounted between the further pendulum arm 31 and the non-visible further pendulum.
  • a gear 38 is fixed, which rotates in operation with the pendulum arm 31 about the pivot axis 21 (the pendulum arm 31 is also driven by a cylinder arrangement, s., The cylinder assembly 23 of Figure 2a).
  • the gear 38 engaged with the gear 38 ' also rotates, which via a shaft 38 "drives the gear 38"', which in turn is engaged with the gear 38 IV .
  • the shaft 38 is mounted on the frame of the winder in a suitable form, see the bearing 39, which is schematically indicated in the figure, and thus does not follow the pivoting of the pendulum arm 31.
  • the gear 38 , v is connected to the tube 36, so that the further pendulum arm 31 of the rotation of the gear 38 , v pivots accordingly.
  • the pendulum arm 20 and the further pendulum arm 31 are connected to each other, wherein the transmission 37 upon pivoting of the pendulum arm 20 (for example, by the cylinder assembly 23 of Figure 2a), a pivoting of the further pendulum 31 generates.
  • the auxiliary roll can be continuously positioned so that the wrap angle ⁇ is constant or predetermined by a running on the contact roller 19 film, s. see Figure 3.
  • the transmission ratio is e.g. in the range 1: 1.5, mathematically exactly 1: 1.51, chosen, the wrap angle ⁇ for a length of the pendulum arm 20 of 600 mm, a length of the further pendulum arm 31 of 400 mm, a diameter of the contact roller 19 of 230 mm and a diameter of the auxiliary roll of 150 mm, constant.
  • FIG. 3 schematically shows a comparison between the embodiment of the present invention shown in FIG. 3 and an arrangement according to the prior art according to FIG.
  • the figure shows a freshly wound winding 18, which still has a small diameter.
  • the pendulum arms 20 are deflected to the right, wherein the contact roller 19 contacts the winding 18 along the contact line 26.
  • the inventive further pendulum arms 31 are also deflected to the right.
  • the film 5 runs on the auxiliary roller 30 and from this on the line 40 again, continue running on the line 41 on the contact roller, the contact roller 19 wraps around to the contact line 26, runs there again from the contact roller 19 and at the same time the winding 18 on.
  • the lines 41, 26 determine the wrap angle et of the film 5 on the contact roller 19 according to the inventive arrangement.
  • auxiliary roll 30 * Shown in phantom in the figure is a notional auxiliary roll 30 * according to the prior art, i.
  • the path 5 * of the film 5 * then running conventionally via the auxiliary roll 30 * is different: a film running in the path 5 * runs on the line 41 * onto the contact roll 19 and naturally on the line 26 from the contact roller again.
  • the lines 41 *, 26 determine the wrap angle ⁇ of a film running in the path 5 * on the contact roller 19, as is the case in an arrangement according to the prior art.
  • wrap angle ⁇ according to the arrangement according to the invention is smaller than the wrapping angle ⁇ according to the arrangement known in the prior art.
  • a reduced wrap angle ⁇ now allows the back-pressed air to escape more easily, so that the amount of air that reaches into the contact area at the location of the contact line 26 between the contact roller 19 and the winding 18 is reduced, whereby the risk of wrinkling decreases.
  • the wrap angle ⁇ can be reduced compared to the conventionally occurring wrap angle ⁇ , which allows the improved winding.
  • a wrap angle ⁇ of 10 ° or less is particularly advantageous and can also be achieved.
  • wrap angle ot can also be adjusted by the arrangement according to the invention, as described below.
  • this set point may be constant, at least over a portion of the winding, and / or may change in a predetermined manner during the advancing winding.
  • the resulting winding 18 then hardens less and can be better handled.
  • the optimum wrap angle ⁇ depends on various factors such as the formulation of the film 5, the feed rate of the film 5, the contact pressure of the contact roller 19 on the winding 18, etc., which may include the winding progress of a coil.
  • a person skilled in the art can determine by simple experiments how to set the wrap angle for a given recipe in conjunction with further parameters such as the feed rate. A general rule can not be given in view of the variety of recipes.
  • the target value of the wrap angle (et) during the progressive winding up to the finished roll to 45 °, or less, preferably 20 ° or less, more preferably maintained at 10 ° or less.
  • a range of the target value of 10 ° or less is optimal for many films and therefore of particular importance.
  • these setpoints can assume any value in the respective area.
  • the inventive method is to produce a winding of a material web of flexible material, in which the flexible material is passed over a contact roller of a winder and wound in this into a winding, wherein the Kon- During the winding, the contact roller keeps in contact with the winding during the winding, and the wrap angle of the material web passing over the contact roller is continuously maintained during the progressive winding on a variable desired value determined for the respective winding.
  • the target value is maintained at 10 ° or less as mentioned above.
  • means are provided (in the embodiment shown in FIG. 2, the further pendulum arms 31 with their drive 33), during the advancing winding of a roll 18, a variable setpoint value for the wrap angle et derable for the respective winding to comply with the contact roller 30 running material web.
  • the means for a desired value of the wrap angle (et) are formed over the entire winding of a roll up to the finished roll of 90 ° or less. More preferably, means for a desired value of the wrap angle (et) over the entire winding of a coil to the finished winding of 45 ° or less, preferably 20 ° or less, more preferably formed to 10 ° or less.
  • the means are designed in such a way that the desired value can be freely selected in one of the named ranges, so that the choice is not subject to any restriction due to the concrete design of these means.
  • the means further comprise an auxiliary roll over which the material web is guided during operation, wherein the auxiliary roll is arranged relatively movably relative to the contact roll during the winding, such that during operation the material web running off the auxiliary roll depends on the respective roll Position of the auxiliary roll at another location on the contact roller runs.
  • the relative movement of the auxiliary roller relative to the contact roller is infinitely variable, but can also, for example, in a simple, inexpensive embodiment and stepwise, if a certain variation of the wrap angle may be accepted during the winding in purchasing.
  • a machine control is preferably provided, which controls the pivoting drives for the pendulum arms 20 and the other pendulum arms 31 operable. In a memory of the machine control can then set values for the wrap angle ⁇ are stored, which have been determined as described above depending on the winding progress, the recipe, other parameters or in a combination thereof.
  • FIGS. 4a to 4e show in a sequence the winding of a coil 18 from the beginning of the coil (FIG. 4a) to the finished coil (FIG. 4e).
  • the further pendulum arms 31, which carry the auxiliary roll 30, are shown schematically in the figures for the sake of clarity as a dash.
  • FIGS. 5a and 5b schematically show a further embodiment of the present invention.
  • a winding station 14 ( Figure 1) of a winder, with a winding shaft 11 and a contact roller 19, which is not mounted on pendulum arms, but here on a multi-joint suspension 50, the lever 51 mounted on joints 51 which in turn has over Joints 53 support arms 54 wear, on which the contact roller 19 is mounted.
  • the illustrated Arrangement allowed to move the contact roller in the operation of the winder of a horizontal along, which in turn simplifies the displacement drive for the auxiliary roll 55, or its control tion, since the contact roller 19 linear and no longer runs on a bow.
  • the auxiliary roll 30 is arranged horizontally displaceable on rails 57 via a carriage 56. Depending on the position of the auxiliary roller 19 relative to the contact roller 30, a corresponding wrap angle ⁇ of the film 5 results on the contact roller.
  • FIG. 6 shows schematically a further embodiment of the present invention.
  • the contact roller 19 is suspended from schematically indicated by a thickened stroke pendulum arms 60, wherein the pendulum arms 60 are pivotable about a pivot axis 61.
  • the auxiliary roll 30 is slidably mounted along a portion 62 of the pendulum arms 60.
  • the pendulum arms 60 themselves are preferably formed double cranked, such that the portion 60 is not in the connecting line 63 between the pivot axis 61 and the axis 64 of the contact roller 19, but inclined to this. If the auxiliary roller is displaced correspondingly to the double arrow 65 shown, the position of the contact line 41 and thus the wrap angle ct changes.
  • the person skilled in the art can determine the offset and a suitable drive for the displacement of the auxiliary roll 30 along the section 62 and operatively connect it to a corresponding machine control, such that during operation a looping angle ⁇ matched to the respective roll and, if desired, adapted to the winding progress can be complied with.
  • According to the invention is also to move the auxiliary roll just trained pendulum arms along, for example, if only a small operating range of the wrap angle ⁇ is considered necessary.
  • the air entry described above takes place not only in the region of the wrap angle ⁇ of the film 5 on the contact roller, but in principle in the winding 18 itself.
  • the wrap angle ⁇ on the Winding 18 always slightly larger than 0 °.
  • the skilled person can also provide, however, to position the auxiliary roll during the winding such that a wrap on the winding 18th arises (and no longer on the contact roller 19), and then to produce on the winding 18 a controlled air intake.

Landscapes

  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de fabrication d'un rouleau (18) à partir d'une bande (5) de matière souple qui est guidée sur un cylindre contacteur (19) d'un enrouleur et est enroulée sur celui-ci pour former un rouleau (18). Le cylindre contacteur (19) reste en contact avec le rouleau (18) lors de l'opération d'enroulement. L'angle de contact (α) de la bande de matière (5) circulant sur le cylindre contacteur (19) est maintenu en continu, lors de l'enroulement en cours, à une valeur théorique modifiable, prédéfinie pour chaque enroulement. L'angle de contact (α) pour l'enroulement peut ainsi être adapté à chaque composition de la bande de matière (5), ce qui permet d'améliorer la qualité de l'enroulement.
EP12794847.9A 2011-11-21 2012-11-20 Enrouleur pour une bande de matière continue Active EP2782858B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12794847T PL2782858T3 (pl) 2011-11-21 2012-11-20 Nawijarka do nieskończonej wstęgi materiału

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01860/11A CH705791A1 (de) 2011-11-21 2011-11-21 Verfahren zur Herstellung eines Wickels aus einer Materialbahn von flexiblem Material, sowie Wickler zur Ausführung dieses Verfahrens.
PCT/CH2012/000259 WO2013075258A1 (fr) 2011-11-21 2012-11-20 Enrouleur pour une bande de matière continue

Publications (2)

Publication Number Publication Date
EP2782858A1 true EP2782858A1 (fr) 2014-10-01
EP2782858B1 EP2782858B1 (fr) 2019-09-18

Family

ID=47278627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12794847.9A Active EP2782858B1 (fr) 2011-11-21 2012-11-20 Enrouleur pour une bande de matière continue

Country Status (6)

Country Link
US (1) US10005635B2 (fr)
EP (1) EP2782858B1 (fr)
CN (1) CN104169199B (fr)
CH (1) CH705791A1 (fr)
PL (1) PL2782858T3 (fr)
WO (1) WO2013075258A1 (fr)

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Also Published As

Publication number Publication date
CN104169199A (zh) 2014-11-26
US20140299705A1 (en) 2014-10-09
US10005635B2 (en) 2018-06-26
PL2782858T3 (pl) 2020-07-13
WO2013075258A1 (fr) 2013-05-30
CN104169199B (zh) 2020-03-24
EP2782858B1 (fr) 2019-09-18
CH705791A1 (de) 2013-05-31

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