EP0340228B1 - Breitstreckwalze - Google Patents

Breitstreckwalze Download PDF

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Publication number
EP0340228B1
EP0340228B1 EP88900544A EP88900544A EP0340228B1 EP 0340228 B1 EP0340228 B1 EP 0340228B1 EP 88900544 A EP88900544 A EP 88900544A EP 88900544 A EP88900544 A EP 88900544A EP 0340228 B1 EP0340228 B1 EP 0340228B1
Authority
EP
European Patent Office
Prior art keywords
roller
broad
indentations
carrier axle
covering
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
Application number
EP88900544A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0340228A1 (de
Inventor
Anton Lückenotto
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.)
Lueraflex Gerhard Lueckenotto GmbH
Original Assignee
Lueraflex Gerhard Lueckenotto GmbH
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 Lueraflex Gerhard Lueckenotto GmbH filed Critical Lueraflex Gerhard Lueckenotto GmbH
Priority to AT88900544T priority Critical patent/ATE57510T1/de
Publication of EP0340228A1 publication Critical patent/EP0340228A1/de
Application granted granted Critical
Publication of EP0340228B1 publication Critical patent/EP0340228B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus

Definitions

  • the invention relates to an spreader roller for guiding web-shaped materials.
  • a generic spreader roller is known from DE-GM 85 06 704, which has a support axis on which a deformable spreader covering is seated with an essentially cynical peripheral surface. From the peripheral surface of the spreader covering, annular incisions run at an angle unequal to 90 ° to the central longitudinal axis of the support axis.
  • roller is suitable for a wide variety of applications, some of which are given below as examples:
  • the deformable spreading covering preferably consists of natural rubber or other types of rubber.
  • the known roller has essentially proven itself and is above all superior to the previously known "banana rollers". These are rolls which are curved in a banana-like manner, the rolls being subdivided into individual deformable sections, so that the roll, when a web-shaped material is passed over it, can deform to form an essentially cylindrical section-shaped surface section.
  • this roller is also in need of improvement, and - depending on the area of application - in particular with regard to its spreading action in the edge region of the roller.
  • the aim is to optimize the deformability of the roller in such a way that the web-shaped material guided over the roller lies as flat as possible on the roller surface, which is only partially the case with the rollers known from the prior art due to the annular incisions with an essentially parallelogram-like cross section can be realized.
  • the invention is based on the knowledge that the deformation of the incised surface areas of known rollers can partially lead to a squeezing of the lamellar sections formed between the incisions, whereby on the one hand, in particular be sensitive goods, such as silk, unevenness forming during the crushing on the Press the surface of the roller onto the material passed over it and, on the other hand, this means that the outer area on the edge cannot always be optimally stretched outwards.
  • the invention now proposes a spreader roller according to the preamble of claim 1, in which the incisions have a smaller width at their circumferentially open end than at their end facing the support axis.
  • the incisions run at an angle between 1 and 89 ° to the support axis in the direction of the support axis, and in mirror image to the axial center of the spreader facing towards one or the other end.
  • angles at which the incisions should run are between 30 and 60 °, optimized between 40 and 50 °.
  • roller The subdivision of the roller into a right and left half with a mirror-image structure is important because this is the only way to ensure that the material web guided over it is evenly stretched to the left and right.
  • the respective incision depth of the individual incisions can be set depending on the respective area of application.
  • the incisions closer to the respective end of the spreader covering are provided with a greater incision depth than the incisions facing the center of the spreader covering. This ensures that the outer incisions can deform better both in the radial and axial direction, specifically in the axial direction towards the respective free end, which improves the stretching effect of the roller on the material in this area.
  • the incisions have a smaller opening width at their circumferentially open end than at their end facing the supporting axis.
  • the incisions can then, for example, have a trapezoidal shape approximating in cross section.
  • the corresponding ring lamellae become quasi longer or they are somewhat less stable in their foot region, with which they pass into the uncut section of the covering, than if the incisions had a parallelogram-like cross-section, for example, since this corresponds to this leads dikkern foot sections of the associated slats.
  • this embodiment is also provided within the scope of the invention.
  • the different depth of cut is matched to the intended use of the roller.
  • the depth of cut can gradually increase, preferably towards the respective free end of the roller, so that the spreader roller can be divided into several cylindrical sections, each cylindrical Section has a plurality of equally deep cuts.
  • the roller can then generally be used more universally, especially in areas where several parallel strips have to be passed over the roller at the same time.
  • roller it is proposed in a further advantageous embodiment to design the roller so that it has a plurality of sections corresponding to the number of strips to be conveyed, each section being designed in the form of a roller according to the invention, that is to say with a mirror image of the incisions.
  • a roller then essentially consists of a plurality of rollers according to the invention connected in series in the axial direction.
  • a wide, one-piece strip web can first be drawn in the direction of the roller and only shortly before the roller can be separated into individual strips, for example using appropriate knives. Each of the strips is then, as previously formed, only transported over a corresponding roller section and stretched to the right and left.
  • Such a “multi-roller” is suitable, for example, for deflecting a paper web, which is divided shortly before the roller into individual paper web strips, which are then wound up, for example, on cardboard cores, for the production of toilet paper rolls.
  • the overall deformation of the roller with respect to its durability can be further optimized if the base of the cut closest to the support axis and the most distant from the support axis include the imaginary central surface of the spreader covering between them, that is , the "middle incision soap" runs approximately in the middle of the thickness of the spreader covering.
  • this effect can also be controlled by arranging the ring-shaped incisions in relation to one another in such a way that an incision protrudes like a scale toward the center of the roller in such a way that its foremost end toward the center of the roller protrudes beyond the corresponding end of the roller towards the end of the groove in front of it towards the center of the roller, which is also explained in more detail with the aid of the drawing.
  • the spreader roller is designated as a whole by reference number 10. This consists of a support shaft 11 and a spreader covering 12 of thickness D made of rubber and fixed thereon. However, any other of the materials mentioned at the outset can also be selected.
  • the support shaft 11 is cylindrical and its ends 13 protrude on both sides of the covering 12, the ends 13 being used for mounting the roller, for example, in radial roller bearings in normal pillow block bearings.
  • the peripheral surface 14 of the spreader roller 10 has essentially a cylindrical shape, which is, however, interrupted by incisions 15 arranged at axial intervals.
  • the thickness D of the covering can be subdivided into a grooved area 16 and an un-grooved area 17 lying between the grooved area 16 and the supporting axis 11.
  • Half the height of the covering 12, which corresponds to a central plane, is indicated by the reference numeral 26 in FIG. 1 with dashed lines.
  • Reference number 18 describes an (imaginary) radial center plane of roller 10.
  • the center plane 18 forms a mirror surface, that is to say that the roller 10 in its right section in FIG. 1 is designed as a mirror image of its left section.
  • the roller is explained in more detail below on the basis of its right section, the features described here being able to be transferred in mirror image to the left half.
  • the roller 10 has a part 20 ′ in the form of a cylindrical section, next to which a radially extending groove 21 is arranged.
  • annular incisions 15', 15a, 15b, 15c run at an axial distance from one another.
  • the annular incision 15 has a parallelogram shape in cross section, while the other incisions 15a, 15b and 15c have a substantially trapezoidal cross-sectional shape, the incisions having a smaller opening width at their circumferential open end (denoted by a for the incision 15a) than at their end facing the supporting axis 11 (indicated there by b).
  • the lamellar section 20a running between the cuts 15 'and 15a has a greater width in the axial direction at its circumferential end than at its end facing the support axis 11.
  • the annular incision 15a has a smaller incision depth than the incision 15b, the incision depth of which is in turn slightly smaller than that of the incision 15c, which means that for the incisions 15a, 15b, 15c there is a total of one from the center plane 18 right end 12 'results in increasing incision depth.
  • the different cross-sectional shape of the incision 21 or the incision 15 'compared to the incisions 15a, 15b, 15c is only shown to characterize the different cross-sectional shapes proposed by the invention.
  • the cuts 21 and 15a, 15b and 15c can of course also be formed at an angle to the support axis 11, but each with a parallelogram-like cross section. It is also possible to make the cuts 15 'and 21 in a cross-sectional shape analogous to those of the cuts 15a, 15b, 15c.
  • the embodiment shown in the figure is preferred in which the incision depths increase towards the edge-side end (12 ') of the spreader roller.
  • the circumferential annular incisions 15a, 15b, 15c and - in the case of an appropriate embodiment of course also the incisions 15 'and 21 - are designed in such a way that the incisions overlap one another, which is evident from the incisions 15b and 15a will be explained in more detail below. It can be seen from the figure that the lower end of the incision 15b facing the central plane 18, which is described with the reference symbol 15b ', projects further towards the central plane 18 than the upper right end of the incision 15a, which is identified with the reference symbol 15a 'is described.
  • the circumferential surfaces of the lamellar sections are cylindrical, as can be clearly seen from the lamella 20a, and this results, especially in combination with the feature of the trapezoidal cuts 15a, 15b, 15c, that the corresponding Surface sections of the lamellae after corresponding deformation in the direction of the support axis 11 at the moment when a material web is guided over the roller, deform so far in the direction of the respective roller end that they are guided against one another and thereby result in an almost closed cylindrical surface, the diameter of the cylinder thus formed is then inevitably somewhat smaller than 20 + the diameter of the supporting axis 11.
  • the (imaginary) cylindrical surface 26 is located exactly between the groove base of the incision 15a and the groove base of the incision 15c, which is preferred because it maintains the elasticity (deformability) of the roller as a whole, but it does is also stabilized at the same time.
  • the distance between the groove base of the incision 15a and the groove base of the incision 15c is specified with the distance dimension Ax.
  • the pressure exerted by a web material guided over the roller results from the tension of the web of material and stops where the spreader roller 10 is wrapped by the web.
  • the wrap angle is as large as the web material or the respective application require to set the required adhesion on the spreader roller and to allow the spreader to act on the web material for a sufficiently long time so that the folds and curls possibly present there, for example in textile webs, can be spread out.
  • a high, friction coefficient of the elastomer of the reference material ensures a safe, flat guidance.
  • a roller covering designed according to the invention can also be applied to supporting axes of known rollers from the prior art.
  • the incisions 15a, 15b, 15c shown in the figure have an angle of between 38 and 45 ° with respect to the support axis 11, the surfaces facing the respective associated end section (12 ') (for example 15c ”) at 45 ° to the central longitudinal axis of the support axis 11, while the surfaces facing the center plane 18 (for example 15c ') run at an angle of only 38 °, which results in the trapezoidal shape already described or the tapered foot sections of the lamellae located therebetween (for example 25).
  • the incisions adjacent to the section 20 '(here: 21) must of course be designed such that they do not cut away the sections 20', but this can be realized particularly advantageously according to the invention since the incisions should have greater incision depths towards the respective end anyway.
  • FIG. 2 shows a partial top view of an spreader roller 10 ′, which is only shown schematically, but is constructed analogously to the embodiment shown in FIG. 1.
  • a web 27 runs on this spreader roller 10 'in the direction of the arrow 28, but is cut into four individual webs 30, 31, 32, 33 by circular disk-shaped cutting knives 29, only shown schematically, before it opens.
  • the axis of rotation of the cutting knife 29 is designated 34.
  • the wrapping roller 10 ' is wrapped, for example, over the peripheral region 35 of the spreading roller 10', so that spreading or axial displacement of the strips 30, 31, 32, 33 can only take place there.
  • FIG. 2 can also be modified in that several of the spreader rolls according to Figure 1 are arranged side by side on a continuous axle body 11, the web 28 is then separated by the cutting knives 29 before reaching the spreader roll 10 'to four individual Lanes 30, 31, 32, 33, which are then respectively stretched to the right and left, it only being necessary to ensure that the separation of the lanes 30, 31, 32, 33 takes place in such a way that they also extend in the axial direction after stretching Support axis 11 do not overlap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Paper (AREA)
  • Coating Apparatus (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Dry Development In Electrophotography (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
EP88900544A 1987-01-09 1988-01-08 Breitstreckwalze Expired - Lifetime EP0340228B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88900544T ATE57510T1 (de) 1987-01-09 1988-01-08 Breitstreckwalze.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8700374U 1987-01-09
DE8700374U DE8700374U1 (nl) 1987-01-09 1987-01-09

Publications (2)

Publication Number Publication Date
EP0340228A1 EP0340228A1 (de) 1989-11-08
EP0340228B1 true EP0340228B1 (de) 1990-10-17

Family

ID=6803472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88900544A Expired - Lifetime EP0340228B1 (de) 1987-01-09 1988-01-08 Breitstreckwalze

Country Status (6)

Country Link
EP (1) EP0340228B1 (nl)
DE (2) DE8700374U1 (nl)
DK (1) DK162829C (nl)
FI (1) FI92682C (nl)
HU (1) HU207259B (nl)
WO (1) WO1988005022A1 (nl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19857123C1 (de) * 1998-12-11 2000-05-31 Lueraflex Gmbh G Lueckenotto Walze zur Führung von bahnenförmigem Material
DE10135124A1 (de) * 2001-07-19 2003-02-06 Lueraflex Gmbh G Lueckenotto Walze zur Führung von bahnenförmigem Material

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903161A1 (de) * 1989-02-03 1990-08-09 Helmuth Schmoock Breitstreckenwalze
DE9319042U1 (de) * 1993-12-11 1994-02-24 Babcock Textilmasch Breitstreckwalze
DE19906694C2 (de) * 1999-02-18 2002-04-11 Lueraflex Gmbh G Lueckenotto Breitstreckwalze
DE10151623C2 (de) * 2001-10-24 2003-12-24 Lueraflex Gmbh G Lueckenotto Walze zur Führung von bahnenförmigem Material
KR20030058310A (ko) * 2001-12-31 2003-07-07 적수 손 익스팬더로울러 제조방법 및 제조장치
DE10206568B4 (de) * 2002-02-18 2004-01-08 LÜRAFLEX GmbH Gerhard Lückenotto Walze zur Führung von bahnenförmigem Material
DE102005048246B4 (de) * 2005-10-07 2009-09-10 Maschinenfabrik Wifag Rotationsdruckmaschine mit Längendehnungs-Kompensator und Verfahren zum Bedrucken einer längsgeschnittenen Bahn

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566162A (en) * 1982-10-26 1986-01-28 American Roller Company Stretcher/expander roller
DE8506704U1 (de) * 1985-03-08 1985-05-09 Lückenotto, Anton, 4000 Düsseldorf Breitstreckwalze für Bahnenwerkstoffe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19857123C1 (de) * 1998-12-11 2000-05-31 Lueraflex Gmbh G Lueckenotto Walze zur Führung von bahnenförmigem Material
DE10135124A1 (de) * 2001-07-19 2003-02-06 Lueraflex Gmbh G Lueckenotto Walze zur Führung von bahnenförmigem Material
DE10135124B4 (de) * 2001-07-19 2004-03-11 LÜRAFLEX GmbH Gerhard Lückenotto Walze zur Führung von bahnenförmigem Material

Also Published As

Publication number Publication date
DK429688D0 (da) 1988-08-02
DK162829B (da) 1991-12-16
HU207259B (en) 1993-03-29
DE8700374U1 (nl) 1987-03-19
WO1988005022A1 (en) 1988-07-14
EP0340228A1 (de) 1989-11-08
DK429688A (da) 1988-09-07
DE3860833D1 (en) 1990-11-22
FI92682C (fi) 1994-12-27
FI92682B (fi) 1994-09-15
DK162829C (da) 1992-05-04
FI892336A0 (fi) 1989-05-16
FI892336A (fi) 1989-05-16

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