WO2008056980A3 - Method and device for reducing the differences between the tensile stresses in flexible elements - Google Patents

Method and device for reducing the differences between the tensile stresses in flexible elements Download PDF

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Publication number
WO2008056980A3
WO2008056980A3 PCT/NL2007/050544 NL2007050544W WO2008056980A3 WO 2008056980 A3 WO2008056980 A3 WO 2008056980A3 NL 2007050544 W NL2007050544 W NL 2007050544W WO 2008056980 A3 WO2008056980 A3 WO 2008056980A3
Authority
WO
WIPO (PCT)
Prior art keywords
elements
rollers
transport rollers
transport
tensile stresses
Prior art date
Application number
PCT/NL2007/050544
Other languages
French (fr)
Other versions
WO2008056980A2 (en
Inventor
Der Hoorn Rudolf Johannes Van
Original Assignee
N Tex Technologies B V
Der Hoorn Rudolf Johannes Van
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 N Tex Technologies B V, Der Hoorn Rudolf Johannes Van filed Critical N Tex Technologies B V
Priority to EP07834674A priority Critical patent/EP2097345A2/en
Publication of WO2008056980A2 publication Critical patent/WO2008056980A2/en
Publication of WO2008056980A3 publication Critical patent/WO2008056980A3/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/12—Controlling warp tension by means other than let-off 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
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/32—Supporting or driving arrangements for forwarding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/18—Driven rotary elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/388—Regulating forwarding speed
    • 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
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • 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
    • B65H2701/30—Handled filamentary material
    • B65H2701/38—Thread sheet, e.g. sheet of parallel yarns or wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention relates to a method for reducing the differences between the tensile stresses in flexible elements (38), such as yarns, which are transported in slip-free manner guided through the pinch of two cylindrical transport rollers (10, 11) pressed against each other and driven for rotation. The method comprises the steps of : (a) placing upstream of the transport rollers a number of driven cylindrical drive rollers (1-7), and guiding the elements through a certain overall angle of encirclement alpha over the drive rollers and subsequently guiding said elements through the pinch; (b) driving the drive rollers in the transport direction of the elements at a peripheral speed which is greater than the transport speed defined by the transport rollers, such that the tensions in all elements are' reduced by the same factor; (c) measuring the tensile stresses in the elements in the area between the final drive roller and the transport rollers and generating a measuring signal; (d) controlling the drives of the transport rollers on the basis of the measuring signal; and (e) subjecting all elements downstream of the transport rollers to a stretch which is almost equal for all elements. The invention also relates to a device for carrying out the method.
PCT/NL2007/050544 2006-11-07 2007-11-07 Method and device for reducing the differences between the tensile stresses in flexible elements WO2008056980A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07834674A EP2097345A2 (en) 2006-11-07 2007-11-07 Method and device for reducing the differences between the tensile stresses in flexible elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1032830 2006-11-07
NL1032830A NL1032830C2 (en) 2006-11-07 2006-11-07 Device for bringing elongated flexible elements to mutually equal voltages.

Publications (2)

Publication Number Publication Date
WO2008056980A2 WO2008056980A2 (en) 2008-05-15
WO2008056980A3 true WO2008056980A3 (en) 2008-07-03

Family

ID=38051995

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2007/050544 WO2008056980A2 (en) 2006-11-07 2007-11-07 Method and device for reducing the differences between the tensile stresses in flexible elements

Country Status (3)

Country Link
EP (1) EP2097345A2 (en)
NL (2) NL1032830C2 (en)
WO (1) WO2008056980A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010015199B9 (en) 2010-04-16 2013-08-01 Compositence Gmbh Fiber guiding device and apparatus for constructing a three-dimensional preform
DE102011100640A1 (en) 2011-05-05 2012-11-08 Compositence Gmbh Method and apparatus for making fiber webs and component preforms from fibers
DE102012007439A1 (en) 2012-04-13 2013-10-17 Compositence Gmbh Laying head and apparatus and method for building a three-dimensional preform for a component made of a fiber composite material
WO2014102015A1 (en) 2012-12-28 2014-07-03 Compositence Gmbh Method and device for producing three-dimensional laid fibre scrims and component preforms made of fibres in two steps
NL2018606B1 (en) 2017-03-30 2018-10-10 Vmi Holland Bv Creel bobbin brake, creel bobbin assembly, a creel and a creel method
CN111204612B (en) * 2019-12-16 2021-11-09 中国电子科技集团公司第三十九研究所 Variable-line-speed constant-tension active pay-off system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6914686A (en) * 1968-09-30 1970-04-01
DE2455117B1 (en) * 1974-11-21 1976-01-29 Barmag Barmer Maschf Einfaedelvorrichtung on a roller conveyor
US5259421A (en) * 1992-10-27 1993-11-09 Alexander Machinery, Inc. Weaving machine feeding apparatus with oscillating dancer roll
US6776319B1 (en) * 2002-04-15 2004-08-17 Jack G. Haselwander Strand tension equalizing apparatus
WO2005051823A1 (en) * 2003-11-25 2005-06-09 Cats Beheer B.V. Method and device for equalizing tension in parallel yarns
DE102004061653A1 (en) * 2004-01-22 2005-08-11 Saurer Gmbh & Co. Kg Treatment equipment for parallel group of fibers used in pre-orientated yarn manufacture, employs auxiliary unit with moveable carrier arm and thread guides

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6914686A (en) * 1968-09-30 1970-04-01
DE2455117B1 (en) * 1974-11-21 1976-01-29 Barmag Barmer Maschf Einfaedelvorrichtung on a roller conveyor
US5259421A (en) * 1992-10-27 1993-11-09 Alexander Machinery, Inc. Weaving machine feeding apparatus with oscillating dancer roll
US6776319B1 (en) * 2002-04-15 2004-08-17 Jack G. Haselwander Strand tension equalizing apparatus
WO2005051823A1 (en) * 2003-11-25 2005-06-09 Cats Beheer B.V. Method and device for equalizing tension in parallel yarns
DE102004061653A1 (en) * 2004-01-22 2005-08-11 Saurer Gmbh & Co. Kg Treatment equipment for parallel group of fibers used in pre-orientated yarn manufacture, employs auxiliary unit with moveable carrier arm and thread guides

Also Published As

Publication number Publication date
NL2000985A1 (en) 2008-05-08
NL2000985C2 (en) 2008-12-16
EP2097345A2 (en) 2009-09-09
WO2008056980A2 (en) 2008-05-15
NL1032830C2 (en) 2008-05-08

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