EP1256650A2 - Dispositif élargisseur - Google Patents

Dispositif élargisseur Download PDF

Info

Publication number
EP1256650A2
EP1256650A2 EP02009861A EP02009861A EP1256650A2 EP 1256650 A2 EP1256650 A2 EP 1256650A2 EP 02009861 A EP02009861 A EP 02009861A EP 02009861 A EP02009861 A EP 02009861A EP 1256650 A2 EP1256650 A2 EP 1256650A2
Authority
EP
European Patent Office
Prior art keywords
web
spreader
pressure bar
roller
spreader roller
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
EP02009861A
Other languages
German (de)
English (en)
Other versions
EP1256650A3 (fr
EP1256650B1 (fr
Inventor
Wolfgang Kurschatke
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.)
Eduard Kuesters Maschinenfabrik GmbH and Co KG
Original Assignee
Eduard Kuesters Maschinenfabrik GmbH and Co 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 Eduard Kuesters Maschinenfabrik GmbH and Co KG filed Critical Eduard Kuesters Maschinenfabrik GmbH and Co KG
Publication of EP1256650A2 publication Critical patent/EP1256650A2/fr
Publication of EP1256650A3 publication Critical patent/EP1256650A3/fr
Application granted granted Critical
Publication of EP1256650B1 publication Critical patent/EP1256650B1/fr
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 a spreader of the preamble of claim 1 corresponding Art.
  • the most commonly used spreader device includes one Spreader roller with a thread, axially from the center of the roller Relief with opposite slope, which at a Rotation with the peripheral speed different from the web the correct direction of rotation, the web in the transverse direction under the effect pull apart the friction, d. H. striving to spread.
  • the Spreading effect is due to the friction at the apex of the relief, dependent on the web tension in the longitudinal direction. The stronger the longer the web is pulled, the tighter it lies in the wrapping area on the spreader roller and the larger is the force with which the web is pulled apart in the transverse direction becomes.
  • Now it is precisely with knitted fabrics because of their elasticity in their Area limits the permissible longitudinal tensile stress, d. H. it is not possible to create a really thorough transverse stretch in the web, the fluctuations in the position of the edge of the web that occur in practice and to compensate for width losses caused by the shrinkage.
  • the invention is based, the transverse expansion effect of the generic task To improve spreader equipment.
  • the pressure bar lies with only slight radial pressure from the outside the spreader roller moving web and presses it against the Relief of the spreader roller. It has been shown to be astonishing Improvement of the spreading effect can be achieved without the only slight radial pressure is the longitudinal tensile stress in the web noticeably increased.
  • the pressure movement is expediently carried out in that the Pressure bar can be swiveled against the web on the spreader roller is (claim 2), wherein the pressure force by spring loading (claim 3) or weight load (claim 4) can be brought about.
  • pressure bar with a Longitudinal edge is attached to the metal profile, which in turn by a parallel pivot axis to the axis of the spreader roller is pivotable.
  • the metal profile brings the weight necessary for the pressure and results on the other hand, a stabilization of the pressure bar, which leads to an over the Width of the web leads more uniform system on the spreader roller.
  • the metal profile is outside extends the outside of the pressure bar, whereby on the one hand the weight-related Pressure torque and on the other hand a protection for the Investment area results.
  • the metal profile can be angled from sheet metal, for example.
  • the pressure bar suitably consists of an elongated rectangular blank made of flat material (claim 8), for. B. of metal (claim 9) or made of plastic (claim 10). All that is important is a smooth contact surface with good sliding properties and a certain resilient characteristic, which can be given in detail according to claim 11, wherein the "low deflection" is a deflection under the action of the pressing force from the longitudinal fastening edge to the attachment point of a few Should mean millimeters.
  • a useful value of the pressure force per unit length of the pressure bar amounts to approximately 1 to 5 N / m according to claim 12.
  • the free edge of the pressure bar can be attached to the metal profile that supports it additionally be supported by an elastically resilient material, what can dampen the formation of unwanted vibrations.
  • An embodiment of the invention according to claim 15 is the arrangement the spreader in front of a foulard, d. H. before the web immersed in the trough of the foulard.
  • the longitudinal tension of the Product path which is particularly critical for knitwear, regulated, the Detection of the actual value of the tension by means of that in the trough of the foulard existing deflection roller takes place, namely by this according to claim 16 height-adjustable and a transducer for under the actual longitudinal tension the material web is provided for a height shift is.
  • the impregnation station designated 100 as a whole in FIG. 1 winds the Material web W from a crate 1 and after impregnation in the Foulard 2 on a pillow 3 again.
  • FIG. 2 He comprises a trough 4 into which the material web W is guided by a deflecting roller 6 coming from top to bottom is initiated, after which it has a pulley 7 circled at the bottom of the trough and vertically upwards again from the Trough 4 is passed out after passing one above the trough 4 arranged spreader roller 10 to pass through the pair of squeeze rollers 11, 12.
  • the volume of the trough 8 is almost entirely by a displacer 8 filled in, so that only narrow vertical channels above the guide roller 7 9 remain and the amount of treatment liquid in the trough 4 is correspondingly low.
  • the trough 4 can be on one arm 5 are pivoted up and down to thread the web W and to be able to clean the trough 4.
  • the deflection roller 6 is a spreader device 20 according to the invention immediately upstream, the details of which from the enlarged reproduction 3 can be seen.
  • the spreader device 20 comprises a conventional, transverse to the web W arranged spreader roller 30, which via a belt 14 or a Chain about its axis A is driven so that it rotates with the Envelope surface 31 of its circumference relative to the web W a relative speed having.
  • the spreader roller 30 has a on its circumference Relief in the form of helical ribs 21 (Fig. 4), the slope the ribs 21 - from the axial central plane 22 of the spreader roller 30 starting from both ends of the same amount, however is directed in the opposite direction, so that the ribs 21 approximately as shown in FIG. 4 provide a clear picture and the web in the corresponding direction of rotation W tend to pull apart in the transverse direction.
  • Ribs 21 are a few millimeters radially from the actual circumferential surface of the Spreader roller 30 before.
  • the web W is, as can be seen from Fig. 3, with a wrap angle 23 passed around the spreader roller 30, which in the embodiment is about 70 °.
  • a pressure bar 40 which is elongated more rectangular, with the longer sides to the axis A of the spreader roller 30 parallel blank formed from a resilient plastic material which has good sliding properties compared to the web W having. 3 is a longitudinal view of the pressure bar 40.
  • the pressure bar 40 takes an angle ⁇ Horizontal of about 45 °.
  • the arrangement of the pressure bar 40 and the Metal profile 28 has its center of gravity according to FIG. 3 to the right of the pivot axis S, so that the weight in particular of the right one in FIG. 3 Part 27 a torque and a pressing force K arise with which the pressure bar 40 in contact with the spreader roller 30 from the outside on the web W rests in the wrap area 23.
  • the pressure force K depends on the design of the metal profile 28 and needs little to be, e.g. B. in the range of 1 to 5 N / m.
  • the overall arrangement is made that the contact force K radially from the outside against the spreader roller 30 acts.
  • 31 is a stop that prevents the right leg 27 of the Metal profile 28 can come to rest on the web W
  • the pressure bar 40 is flat in the force-free state, as by the line 40 " should be hinted at.
  • the deflection indicated in Fig. 3 comes under the effect of the weight moment. It can be seen from Fig. 3 that the pressure bar 40 should not be too stiff, but about the attachment 24, 25 should bend slightly under the effect of the investment torque.
  • the deviation h compared to the non-energized state 40 ", which under the Effect of the pressure force K should occur at the contact point 50 are in the range of 3 to 10 millimeters. This creates an elastic stiffness marked, to equalize the contact force K over the width of the web W contributes.
  • the web W When the web W has left the spreader roller 30, it arrives on a smooth sliding surface 32, which is also elongated rectangular and extends across the web W.
  • the sliding surface 32 grips the web W immediately after that on the spreader roller 30 Spreading and maintains the stretched condition up to the web W shortly after leaving the sliding surface 32 on the deflection roller 6 passes. In this way, the free running distance between the Spreader roller 30 and the deflection roller 6 shortened and the risk of Formation of duplications and curls under the effect of the restoring forces reduced.
  • FIG. 5 shows a view approximately in the direction V in FIGS. 1 and 3 and shows the spreading effect on a knitted web W and the transition of the wide web W without having to jump again in the transverse direction onto the deflection roller 6.
  • FIG. 4 corresponds to the actual conditions with regard to the achievable spreading from a shrunk starting width B 1 to a stretched width B 2 .
  • Fig. 2 recognizable deflection drum 7 on Bottom of the trough 4 slidably mounted in the vertical direction to a particular sensitive detection and control of the longitudinal tensile stress in the Enable web W.
  • the storage takes place in a in a Axis B vertical plane showing an approximately square outline End shield 33, the four in one to the axis B of the deflection drum 7 vertically level corners arranged over slide bushes 34 on vertical guide rods located on both sides of axis B. 35 is longitudinally displaceable in the direction of arrow 36.
  • the guide rods 35 are arranged between holding plates 37, 38.
  • a compression spring 39 which is a shift of the end shield 33 according to FIG. 6 counteracts upwards.
  • the one in the web W acting longitudinal tension is striving to deflect drum 7 2 against the force of the spring 39 to pull up.
  • the achieved Displacement is a measure of the longitudinal tensile stress and can be caused by a Measuring transducer, not shown, are detected, the signal into a Regulation of the longitudinal tensile stress is received.
  • the web tension acts directly on the deflection drum 7 and it changes also on the web tension until it runs onto the Spreader roller 10 nothing more.
  • the web tension also acts to the idler drum 7 with translation, so to speak, namely in both Strands of the web W.
  • the deflection drum 7 is the one for Determining the web tension in the longitudinal direction is the cheapest place.
  • Fig. 3 it can be seen that it can be useful to move between the free Edges of the metal profile 28 on the right leg in FIG. 3 and the Outside of the pressure bar 40 a sequence in the cross-web direction plug 41 arranged one behind the other or a corresponding continuous one
  • a strip made of a very soft, resilient material which increases the force on the free end 40 "'of the pressure bar 40 and is also suitable for damping any vibrations that may occur.
  • the pressure bar 40 will be continuous over the whole The width of the web W extend. But it is also possible, for. B. two shorter pressure bars (40) only in the longitudinal edge areas of the web W to arrange.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP02009861A 2001-05-12 2002-05-02 Dispositif élargisseur Expired - Lifetime EP1256650B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20108043U DE20108043U1 (de) 2001-05-12 2001-05-12 Breitstreckeinrichtung
DE20108043U 2001-05-12

Publications (3)

Publication Number Publication Date
EP1256650A2 true EP1256650A2 (fr) 2002-11-13
EP1256650A3 EP1256650A3 (fr) 2004-08-04
EP1256650B1 EP1256650B1 (fr) 2006-07-05

Family

ID=7956824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009861A Expired - Lifetime EP1256650B1 (fr) 2001-05-12 2002-05-02 Dispositif élargisseur

Country Status (3)

Country Link
EP (1) EP1256650B1 (fr)
AT (1) ATE332402T1 (fr)
DE (2) DE20108043U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2398303A (en) * 2003-01-16 2004-08-18 Schuler Held Lasertechnik Gmbh Layering fabric or like material
DE10349809A1 (de) * 2003-10-24 2005-06-02 Eduard Küsters Maschinenfabrik GmbH & Co. KG Verfahren und Vorrichtung zur Verbesserung der Warenlaufeigenschaften von Polwaren

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724864A1 (de) * 1976-06-08 1977-12-22 Isotex Spa Fuehrungsvorrichtung fuer laufende warenbahnen o.dgl.
EP0114166A1 (fr) * 1983-01-21 1984-08-01 Frank Ellner Dispositif pour étendre et guider une bande continue
DE3740225C1 (en) * 1987-11-24 1989-03-09 Ifs Ing Gmbh Apparatus for the guidance of textile fabric webs or the like
EP0663362A1 (fr) * 1994-01-08 1995-07-19 ERHARDT + LEIMER GmbH Dispositif pour guider et maintenir une bande de largeur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB753481A (en) * 1953-05-22 1956-07-25 William Wycliffe Spooner Improvements in or relating to edge sensing or detecting means
DE3914732A1 (de) * 1989-04-29 1990-10-31 Castagna Wolfgang Andrueckeinrichtung zum fuehren von textilen warenbahnen oder dergleichen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724864A1 (de) * 1976-06-08 1977-12-22 Isotex Spa Fuehrungsvorrichtung fuer laufende warenbahnen o.dgl.
EP0114166A1 (fr) * 1983-01-21 1984-08-01 Frank Ellner Dispositif pour étendre et guider une bande continue
DE3740225C1 (en) * 1987-11-24 1989-03-09 Ifs Ing Gmbh Apparatus for the guidance of textile fabric webs or the like
EP0663362A1 (fr) * 1994-01-08 1995-07-19 ERHARDT + LEIMER GmbH Dispositif pour guider et maintenir une bande de largeur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2398303A (en) * 2003-01-16 2004-08-18 Schuler Held Lasertechnik Gmbh Layering fabric or like material
GB2398303B (en) * 2003-01-16 2006-03-15 Schuler Held Lasertechnik Gmbh Apparatus and method for compacting a fabric stack
DE10349809A1 (de) * 2003-10-24 2005-06-02 Eduard Küsters Maschinenfabrik GmbH & Co. KG Verfahren und Vorrichtung zur Verbesserung der Warenlaufeigenschaften von Polwaren

Also Published As

Publication number Publication date
EP1256650A3 (fr) 2004-08-04
DE20108043U1 (de) 2002-10-10
DE50207420D1 (de) 2006-08-17
EP1256650B1 (fr) 2006-07-05
ATE332402T1 (de) 2006-07-15

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