US3391436A - Apparatus for needling a web - Google Patents

Apparatus for needling a web Download PDF

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Publication number
US3391436A
US3391436A US589373A US58937366A US3391436A US 3391436 A US3391436 A US 3391436A US 589373 A US589373 A US 589373A US 58937366 A US58937366 A US 58937366A US 3391436 A US3391436 A US 3391436A
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United States
Prior art keywords
needles
web
rolls
pair
roll
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Expired - Lifetime
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US589373A
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English (en)
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Fehrer Ernst
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Individual
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Individual
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Publication of US3391436A publication Critical patent/US3391436A/en
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles

Definitions

  • This invention relates to apparatus for needling hair or fiber webs or the like, which apparatus comprises a multiplicity of vertically reciprocable needles which are disposed in rows and columns and are moved through a perforated stripper from above into a web or the like, which is advanced on a perforated support by pairs of rolls disposed before and behind the needles.
  • the needles have barbs, by which individual fibers or hairs are caught when the needles penetrate the web, and by which these fibers or hairs are entrained so that the piercing of the web improves the coherence of the hairs or fibers and the felting of the web.
  • Webs consisting only of hairs or fibers as well as structures having a woven fabric backing have been needled.
  • the web must be at a standstill during the piercing movement and may be advanced by a suitable distance only when the needles have been raised and are disengaged from the web. For this reason, the feed rolls are intermittently driven to rotate only when the needles are disengaged from the web whereas the rolls are at a standstill during the piercing operation.
  • This method of feeding the web has proved satisfactory as long as the number of needle strokes and of stopping and rotating cycles of the rolls is relatively small per unit of time. If the number of strokes is increased, as is desirable, the drive of the rolls involves considerable difiiculties.
  • the masses to be accelerated and retarded become so large that in the ease of a large number of strokes, or stoppages of the roll drives, the inertia forces prevent a perfect stoppage of the rolls and the transmissions are subjected to stresses which they cannot withstand if the transmission elements are kept within reasonable dimensions.
  • the intermittent drive of such rolls at a high frequency subjects the entire needling apparatus to vibration, which is highly inconvenient and can hardly be controlled.
  • the invention resides in that the feed rolls are uniformly driven and the upper roll of the pair of rolls which succeeds the needles has an elliptical or oval cross-sectional shape and is connected independently of the associated lower roll to the drive means for the vertical reciprocation of the needles in such a manner that the larger diameter of said upper roll extends horizontally when the needles are lowered and extends vertically when the needles are raised. Contrary to the previous belief in the art, the feed rolls are now continuously driven. This results in a considerable simplification in structure, and vibration due to the rolls is avoided.
  • the upper roll of this rear pair of rolls has an elliptical or oval cross-section and is connected to the needle drive in such a manner that the larger diameter is horizontal when the web is pierced by the needles, so that the shorter diameter is then vertical and the spacing between the upper and lower rolls is increased, resulting in a reduced frictional engagement and in an increased slippage of the rolls relative to the web.
  • the upper roll As soon as the needles are being raised, the upper roll is rotated so that its larger diameter assumes a vertical position so that the spacing of the rolls is much reduced, the web is compressed between the rolls, the frictional engagement is increased and the web is entrained with a smaller slippage by the driving lower roll. In spite of the fact that the rolls rotate continuously, a substantial tensile force is applied to the web only when the needles are raised so that a tearin of the web or other damage thereto need not be feared.
  • the lower roll of the pair of rolls which succeed the needles is driven at somewhat higher speed than the pair of rolls before the needles to allow for the arching or folding caused during the piercing in webs having a woven fabric backing, and for the stretching of pure hair or fiber webs during the needling operation.
  • the accompanying drawing is a diagrammatic view showing the most important parts of a needling device according to the invention.
  • a web 2 to be needled is advanced in the direction of the arrow on a perforated support 1.
  • a perforated stripper 3 is disposed over the support 1.
  • Needles 4, which are closely spaced in rows and columns, are moved through the stripper 3 into the web.
  • the needles 4 are mounted in needle boards 5, which are carried by a vertically reciprocated needle board holder 6.
  • the needle board holder 6 is suspended from slidably guided rods 7, which are connected by connecting rods 8 to a crankshaft 9.
  • Two pairs of rolls 10 and 11, 12 are provided before and behind the needles 1. Both pairs of needles are driven constantly rather than intermittently.
  • the surface speed of the lower roll 11 is somewhat higher than that of the pair of rolls 10 and the upper roll 12 is driven independently of the lower roll 11 by the means for reciprocating the needles, i.e., by the crankshaft 9.
  • the upper roll 12 is elliptical or oval in cross-section and is coupled to the needle movement with such a phase relation that its larger diameter is horizontal when the needles have penetrated the web whereas the larger diameter moves to a vertical position when the needles are being raised.
  • the ovality of the upper roll 12 is exaggerated in the drawing for the sake of clearness. The desired effect can actually be obtained with a much lower difference in diameter.
  • Apparatus for needling a web comprising a perforated support, a perforated stripper spaced from said support in a direction normal to said support, a set of needles arranged in rows and columns and movable through said stripper into the space between said stripper and said support, needle drive means for extending and retracting said needles into and out of said space, and feeding means for advancing a web through said space, said feeding means comprising a first pair of feed rolls disposed adjacent to one end of said set of needles, a second pair of feed rolls disposed adjacent to the opposite end of said set of needles, first roll driving means for continuously driving at least one of said first pair of feed rolls, and second roll driving means for continuously driving one of said second feed rolls, the other one of said second feed rolls being non-circular in crosssection and having a largest diameter and being arranged and connected to said needle drive means in such a manner that said largest diameter is horizontal when said needles are fully extended into said space, and vertical when said needles are fully retracted from said space

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US589373A 1965-11-26 1966-10-25 Apparatus for needling a web Expired - Lifetime US3391436A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1063665A AT259246B (de) 1965-11-26 1965-11-26 Vorrichtung zum Nadeln von Haar bzw. Faservliesen od. dgl.

Publications (1)

Publication Number Publication Date
US3391436A true US3391436A (en) 1968-07-09

Family

ID=3623703

Family Applications (1)

Application Number Title Priority Date Filing Date
US589373A Expired - Lifetime US3391436A (en) 1965-11-26 1966-10-25 Apparatus for needling a web

Country Status (6)

Country Link
US (1) US3391436A (fr)
AT (1) AT259246B (fr)
CH (1) CH439208A (fr)
DE (1) DE1660773B1 (fr)
FR (1) FR1496526A (fr)
GB (1) GB1110246A (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681823A (en) * 1970-03-28 1972-08-08 Dilo Oskar Kg Needling apparatus
US3798717A (en) * 1972-10-30 1974-03-26 Hunter Machine Co J Needle loom drives
US3889326A (en) * 1973-04-06 1975-06-17 Weldstow Ltd Needle looms
US3916494A (en) * 1973-09-18 1975-11-04 Fehrer Ernst Gmbh Machine for needling non-woven fiber webs
US4891870A (en) * 1987-10-01 1990-01-09 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Needling apparatus for making a patterned felt web
US4955123A (en) * 1986-01-28 1990-09-11 Lawton Peter G Production of a shaped filamentary structure
US5125135A (en) * 1990-03-20 1992-06-30 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Needling machine
US5705264A (en) * 1987-01-27 1998-01-06 Aerpspace Preforms Limited Production of shaped filamentary structures
US5882781A (en) * 1986-01-28 1999-03-16 Aerospace Preforms Limited Shaped fibrous fabric structure comprising multiple layers of fibrous material
US5909883A (en) * 1995-01-12 1999-06-08 Asselin Needling machine and associated feed control method
US6174594B1 (en) 1986-01-28 2001-01-16 Aerospace Preforms Limited Shaped filamentary structures
US6568050B2 (en) 2001-02-26 2003-05-27 Messier-Bugatti Method and installation for advancing a needled fiber plate
US20110154629A1 (en) * 2009-12-23 2011-06-30 Messier-Bugatti Circular needling table for needling a textile structure made from an annular fiber preform

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390971B (de) * 1986-03-24 1990-07-25 Fehrer Textilmasch Vorrichtung zum nadeln eines mineralfaservlieses
DE19702692A1 (de) * 1996-02-19 1997-11-06 Fehrer Ernst Verfahren und Vorrichtung zum Vernadeln einer Vliesbahn
DE19713350C2 (de) * 1996-04-19 2000-03-09 Ernst Fehrer Vorrichtung zur Vernadelung eines vorverfestigten Vlieses
DE10156734A1 (de) 2001-11-19 2003-05-28 Truetzschler Gmbh & Co Kg Vorrichtung zum Verfestigen eines förderbaren Faservlieses

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3010178A (en) * 1960-04-18 1961-11-28 Hunter James Machine Co Needle loom
US3112549A (en) * 1960-05-13 1963-12-03 Chatham Mfg Company Needle punch machine
US3116534A (en) * 1961-05-02 1964-01-07 William Bywater Ltd Web needling machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3010178A (en) * 1960-04-18 1961-11-28 Hunter James Machine Co Needle loom
US3112549A (en) * 1960-05-13 1963-12-03 Chatham Mfg Company Needle punch machine
US3116534A (en) * 1961-05-02 1964-01-07 William Bywater Ltd Web needling machines

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681823A (en) * 1970-03-28 1972-08-08 Dilo Oskar Kg Needling apparatus
US3798717A (en) * 1972-10-30 1974-03-26 Hunter Machine Co J Needle loom drives
US3889326A (en) * 1973-04-06 1975-06-17 Weldstow Ltd Needle looms
US3916494A (en) * 1973-09-18 1975-11-04 Fehrer Ernst Gmbh Machine for needling non-woven fiber webs
US5882781A (en) * 1986-01-28 1999-03-16 Aerospace Preforms Limited Shaped fibrous fabric structure comprising multiple layers of fibrous material
US4955123A (en) * 1986-01-28 1990-09-11 Lawton Peter G Production of a shaped filamentary structure
US6174594B1 (en) 1986-01-28 2001-01-16 Aerospace Preforms Limited Shaped filamentary structures
US5705264A (en) * 1987-01-27 1998-01-06 Aerpspace Preforms Limited Production of shaped filamentary structures
US5737821A (en) * 1987-01-27 1998-04-14 Aerospace Preforms Limited Production of shaped filamentary structures
US4891870A (en) * 1987-10-01 1990-01-09 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Needling apparatus for making a patterned felt web
US5125135A (en) * 1990-03-20 1992-06-30 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Needling machine
US5909883A (en) * 1995-01-12 1999-06-08 Asselin Needling machine and associated feed control method
US6568050B2 (en) 2001-02-26 2003-05-27 Messier-Bugatti Method and installation for advancing a needled fiber plate
US20110154629A1 (en) * 2009-12-23 2011-06-30 Messier-Bugatti Circular needling table for needling a textile structure made from an annular fiber preform
US8448310B2 (en) * 2009-12-23 2013-05-28 Messier-Bugatti-Dowty Circular needling table for needling a textile structure made from an annular fiber preform

Also Published As

Publication number Publication date
AT259246B (de) 1968-01-10
FR1496526A (fr) 1967-09-29
DE1660773B1 (de) 1971-04-15
CH439208A (de) 1967-07-15
GB1110246A (en) 1968-04-18

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