US3921266A - Needling machine - Google Patents

Needling machine Download PDF

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Publication number
US3921266A
US3921266A US554136A US55413675A US3921266A US 3921266 A US3921266 A US 3921266A US 554136 A US554136 A US 554136A US 55413675 A US55413675 A US 55413675A US 3921266 A US3921266 A US 3921266A
Authority
US
United States
Prior art keywords
rods
apex portion
feed roller
annular grooves
needles
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
US554136A
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English (en)
Inventor
Ernst Fehrer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3921266A publication Critical patent/US3921266A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • a perforated stripping plate is disposed over and vertically spaced from a perforated backing plate to define a space therewith. Means are provided which are operable to move a multiplicity of needles up and down through said backing and stripping plates. Upper and lower feed rollers form a nip and are operable to advance a non-woven web through said nip and toward said space. The upper feed roller is formed with annular grooves.
  • a plurality of juxtaposed rods are provided, each of which comprises first and second legs and an apex portion at which said legs are joined and include an acute angle with each other.
  • Each of said rods extends into one of said annular grooves only with said apex portion on that side of said upper feed roller which faces said space.
  • Said first leg is fixed at a point spaced from said apex portion.
  • Said second leg extends from said apex portion into the proximity of the needles which are nearest to said feed rollers.
  • the rods are disposed above and below the non-woven web which is being fed and serve to bridge the space between the nip of the feed rollers and the first needles and these rods are fixed on the receiving side of the pair of feed rollers and .are curved around the rollers and extend through the nip of the rollers and further to the first needles.
  • the rods extend around the two feed rollers on the receiving side over an arc of more than 180 so that the rods are virtually mounted on the rollers themselves and there is no need for special means for fixing the rods.
  • the web being advanced between the upper and lower rods exert on the rods a tensile force directed toward the needles so that the rods are always firmly urged into the annular grooves of the pair of feed rollers and are in frictional contact with the rollers in the grooves.
  • the upper and lower rods form pairs of vertically aligned rods.
  • the feed rollers cannot exert a feeding action adjacent to each pair of rods so that the web material is braked there and the web is formed with longitudinal streaks which correspond to the positions of the rods and in which the web material slightly lags behind the adjacent zones.
  • the upper and/or upper perforated plate i.e., the stripping and/or supporting plate
  • blades which protrude like the teeth of a comb toward the feed rollers and which extend into annular grooves on the delivery side of the feed rollers.
  • the annular grooves of one feed roller are later ally staggered from the annular grooves of the other feed roller so that a vertical alignment of upper and lower blades is avoided.
  • this design has proved quite satisfactory, it can be used only when the distance between the stripping and backing plates is not to be changed.
  • the stripping plate When it is desired to needle nonwoven webs differing in thickness, at least the stripping plate must be adjustable in height for adaptation to the thickness of the respective non-woven web. In that case it is not possible to provide the adjustable perforated plate with blades which extend into annular grooves of the associated feed roller.
  • each rod has a first leg and a second leg which includes an acute angle with the first leg, each rod extends only at the apex of said angle in an annular groove of the associated feed roller on the side thereof facing the needles, the first leg is fixed at a point spaced from said apex, the second leg extends from the apex of said angle toward the needles, and any lower rods and annular grooves of the lower feed roller are laterally staggered from the upper rods and the annular grooves of the upper feed roller, respectively.
  • each rod no longer protrude into the nip between the feed rollers and the upper and lower rods are not vertically aligned but laterally staggered a formation of streaks in the non-woven web by a braking of the material of the web need not be feared.
  • the advancing web does not force the rods into the annular grooves of the feed rollers but even pulls the portions of the rods slightly away from the bottom of the grooves so that there is virtually no friction between the rods and the feed rollers and for this reason an appreciable wear is not to be feared, particularly because each rod extends only with its apex portion in an annular groove.
  • One leg of each rod is secured independently of the adjacent perforated plate so that the strip- 7 ping plate and, if desired, also the backing plate can readily be adjusted for adaptation to webs differing in thickness.
  • Needle boards are inserted in a needle beam 1, which is moved up and down at high speed.
  • the needle boards carry a multiplicity of needles 2, which are arranged one beside the other and one behind the other.
  • the needles 2 pierce the non-woven web, which is not shown, as it is advanced between a perforated stripping plate 2 and an also perforated backing plate 4.
  • the stripping plate is adjustable in height.
  • the non-woven web is fed by an endless conveyor belt 5 and passes between two rollers 6, 7, which are formed with annular grooves 8.
  • Rods 9, 10 are arranged on that side of the pair of feed rollers 6, 7 which faces the needles 2.
  • Each rod has legs which include an acute angle and with a portion 11 at the apex of said angle extends in an annular groove 8 formed in the upper or lower feed roller 6 or 7.
  • One leg 12 extends between the stripping plate 3 and the backing plate 4 into the proximity of the first needles 2.
  • the rod is fixed at its other leg 13, which ex tends from the apex on a line which is approximately tangential to the associated feed roller 6 or 7.
  • the upper rods 9 and the annular grooves 8 of the upper feed roller are laterally spaced from the lower rods 10 and the annular grooves 8 of the lower feed roller 7, respectively.
  • a needling machine which comprises a perforated backing plate
  • a perforated stripping plate disposed over and vertically spaced from said backing plate to define a space therewith
  • upper and lower feed rollers forming a nip and operable to advance a non-woven web through said nip and toward said space.
  • said upper feed roller being formed with annular grooves, and
  • each of which comprises first and second legs and an apex portion at which said legs are joined and include an acute angle with each other each of said rods extending into one of said annular grooves only with said apex portion on that side of said upper feed roller which faces said space, said first leg being fixed at a point spaced from said apex portion. said second leg extending from said apex portion into the proximity of the needles which are nearest to said feed rollers.
  • said lower feed roller is also formed with annular grooves, which are laterally staggered from the annular grooves of said upper feed roller, and
  • a plurality of juxtaposed lower rods are provided, each of which comprises first and second legs and an apex portion at which its legs are joined and include an acute angle with each other.
  • each of said lower rods extending into one of said annular grooves of said lower feed roller only with said apex portion on that side of said lower feed roller which faces said space.
  • said first leg of each of said lower rods being fixed at a point spaced from its apex portion
  • said second leg of each lower rod extending from its apex portion into the proximity of the needles which are nearest to said feed rollers.
  • said lower rods being laterally staggered from said upper rods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US554136A 1974-04-01 1975-02-28 Needling machine Expired - Lifetime US3921266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT270374A AT333048B (de) 1974-04-01 1974-04-01 Vorrichtung zum einfuhren von vliesen in nadelmaschinen

Publications (1)

Publication Number Publication Date
US3921266A true US3921266A (en) 1975-11-25

Family

ID=3538960

Family Applications (1)

Application Number Title Priority Date Filing Date
US554136A Expired - Lifetime US3921266A (en) 1974-04-01 1975-02-28 Needling machine

Country Status (6)

Country Link
US (1) US3921266A (fr)
JP (1) JPS5335191B2 (fr)
AT (1) AT333048B (fr)
BE (1) BE826956A (fr)
FR (1) FR2265896A1 (fr)
GB (1) GB1442974A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307546A (en) * 1991-08-29 1994-05-03 Oskar Dilo Maschinenfabrik Kg Apparatus for feeding a fiber batt to a needle loom
US5371928A (en) * 1991-08-29 1994-12-13 Oskar Dilo Maschinenfabrik Kg Apparatus for feeding a fiber batt to a needle loom
US6634069B2 (en) * 2001-09-24 2003-10-21 Oskar Dilo Maschinenfabrik Kg Apparatus for feeding a fiber fleece

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214831A1 (de) * 1982-04-21 1983-10-27 Oskar Dilo Maschinenfabrik Kg, 6930 Eberbach Maschine zum vorverfestigen eines faservlieses
IT1218766B (it) * 1986-09-26 1990-04-19 Roberta Maranghi Introduttore di ovatte per macchina preagugliatrici o agugliatrici
FR2621609B1 (fr) * 1987-10-09 1990-01-19 Asselin Ets Dispositif de transfert et dispositif de compression et d'introduction pour aiguilleteuse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621540A (en) * 1969-11-03 1971-11-23 Crompton & Knowles Corp Fibrous batt feeding mechanism
US3837054A (en) * 1972-03-06 1974-09-24 Fehrer Ernst Needle punching machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621540A (en) * 1969-11-03 1971-11-23 Crompton & Knowles Corp Fibrous batt feeding mechanism
US3837054A (en) * 1972-03-06 1974-09-24 Fehrer Ernst Needle punching machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307546A (en) * 1991-08-29 1994-05-03 Oskar Dilo Maschinenfabrik Kg Apparatus for feeding a fiber batt to a needle loom
US5371928A (en) * 1991-08-29 1994-12-13 Oskar Dilo Maschinenfabrik Kg Apparatus for feeding a fiber batt to a needle loom
US6634069B2 (en) * 2001-09-24 2003-10-21 Oskar Dilo Maschinenfabrik Kg Apparatus for feeding a fiber fleece

Also Published As

Publication number Publication date
GB1442974A (en) 1976-07-21
BE826956A (fr) 1975-09-22
DE2507169A1 (de) 1975-10-09
JPS50132264A (fr) 1975-10-20
DE2507169B2 (de) 1977-03-31
JPS5335191B2 (fr) 1978-09-26
ATA270374A (de) 1976-02-15
FR2265896A1 (fr) 1975-10-24
AT333048B (de) 1976-10-25

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