EP0796363B1 - Nadelmaschine mit schubstange - Google Patents

Nadelmaschine mit schubstange Download PDF

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Publication number
EP0796363B1
EP0796363B1 EP95942219A EP95942219A EP0796363B1 EP 0796363 B1 EP0796363 B1 EP 0796363B1 EP 95942219 A EP95942219 A EP 95942219A EP 95942219 A EP95942219 A EP 95942219A EP 0796363 B1 EP0796363 B1 EP 0796363B1
Authority
EP
European Patent Office
Prior art keywords
rod
sliding
sliding rod
connecting rod
needling machine
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
EP95942219A
Other languages
English (en)
French (fr)
Other versions
EP0796363A1 (de
Inventor
Bernard Jourde
François LOUIS
Robert Jean
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.)
Asselin SA
Original Assignee
Asselin SA
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 Asselin SA filed Critical Asselin SA
Publication of EP0796363A1 publication Critical patent/EP0796363A1/de
Application granted granted Critical
Publication of EP0796363B1 publication Critical patent/EP0796363B1/de
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

  • the present invention relates to a needling machine used to mechanically consolidate a layer of fibers for example from a lapper spreader.
  • Known needling machines have a support called a board on which needles are attached. At connecting rod-crank devices, the board is reciprocated so that these needles cross the web of fibers at a rate of production can be of the order of 1000 to 2000 shots per minute.
  • the alternative movement of the needle board is obtained thanks to a connecting rod-crank device.
  • Complementary devices allow also to regulate the incoming fiber flow and leaving the machine with or without stretching and at speeds chosen according to the striking rate in number of strokes per minute, equivalent to the number of alternative movements of the hands per minute.
  • each connecting rod-crank device extends between a eccentric connected to a motor, and a joint to the end of a sliding rod to which is attached a needle board support.
  • the sliding rod crosses two bearings sliding located at a certain distance one of the other.
  • GB-A-1 343 763 certainly offers a provision according to which the articulation between rod and rod is placed inside the tubular rod.
  • the crank side sliding bearing can be placed closer to the crank because the joint can at least for certain angular positions of the crank engage in the sliding bearing.
  • the bearings then have a very large diameter and it turns out in practice that their tightness is then difficult to achieve.
  • the rod is heavy and the whole is expensive.
  • US-A-3 798 717 and FR-A-2 224 579 remedy this difficulty by placing the joint so that it is always between the upper and lower sliding bearings but the whole then becomes mechanically very complex and expensive.
  • the object of the present invention is thus to offer a simple needling machine that can operate at high speed continuously and with a favorable vibrational behavior.
  • the rod and the bearing side crank have a robustness considerable in the busiest area, in the vicinity of the articulation with the connecting rod.
  • the other tier, minus loaded, has a reduced diameter. So the stem is lightened where possible, which reduces its inertia.
  • the sliding guide obtained is more rigorous than with two large diameter bearings, because the difference in diameter increases the actual distance between the two guides, relative to the distance measured along the axis. So we can shorten the rod, and thus increase the rigidity of the mechanism with regard to lateral forces, exerted in particular by moving fibers that tend to drag the board with needles.
  • the guidance performed is also less sensitive to thermal differences because variations dimensions on the small diameter bearing are smaller, in absolute value.
  • the small step diameter is less expensive, and its tightness, when necessary, is easier to achieve.
  • the rod is made tubular on at least part of its length from the end turned towards the connecting rod.
  • the articulation between the rod and the connecting rod is produced inside the rod. It is then very preferable that at least during part of the stroke of the sliding rod, the axis of said articulation between the connecting rod and the sliding rod is located in the axial extent covered by the two sliding bearings and by the interval between them.
  • the attached figure is a schematic view in elevation, with partial cut and tearing, of a needling machine according to the invention.
  • the needling machine shown in the figure includes a perforated table 1 generally horizontal and a retaining plate 2, also called “stripper", placed approximately parallel to a certain distance above table 1.
  • Table 1 and stripper 2 define a path between them in a plane substantially horizontal for a sheet of fibers 3.
  • the stripper 2 includes perforations aligned with those in table 1.
  • introducer means 4 shown schematically in the form a pair of motor rollers between which the tablecloth 3.
  • extractor means 6 also shown diagrammatically by two motor rollers between which the tablecloth passes.
  • a needle board 7 is positioned opposite from the face of the stripper 2 opposite the path for the sheet 3.
  • the board 7 carries on the side of the stripper 2 a large number of needles 8 oriented perpendicularly in the plan of the path for the sheet 3, with their point directed towards the web 3.
  • Each needle is positioned opposite a perforation in stripper 2 and a corresponding perforation of table 1.
  • the plank needles 7 is fixed, on the opposite side to needles 8, to a support 9 itself fixed to the end of at least one rod 11 slidingly mounted in a direction 12 parallel to needles 8 and perpendicular to the plane of path of the sheet 3. If several rods 11 are provided, these are for example aligned one behind others when seen in the way shown in the single figure.
  • each sliding rod 11 is guided in two coaxial sliding bearings 13 and 14 integral with a frame 16 which is only partially represented. Bearings 13 and 14 have rings anti-friction 17 for contact with the rod 11.
  • the mobile equipment consisting of the rod (s) 11, the support 9 and the board 7 is animated in service with an alternating movement of going and comes in direction 12 between a position 7a in which needles, the end of which is in this case designated by 8a, crosses the stripper 2, the tablecloth 3 and table 1, and a release position 7b in which the needles 8 are completely released at less than table 1 and tablecloth 3, and possibly stripper 2.
  • the rod 11 is articulated by a articulation 18 at one end of a connecting rod 19 of which the other end is connected by a hinge 21 to a crank 22 rotated by means motors not shown.
  • the frame 16 defines a casing closed containing the rod-crank assembly 21, 22 and the bearing 13 which is closest thereto. Landing 14 forms the lower limit of the closed housing.
  • a oil seal 32 is fixed to the frame 16 around the rod 11 on the side of the support 9 relative to the bearing 14 to prevent the lubricant bearings 14, 17 and the rod-crank assembly, to leak from the closed casing along the rod 11 towards the needling area.
  • the rod 11 comprises from its end 27 facing the connecting rod 19, a first region 28 which is made tubular with the interior space of the tube emerging through the end 27.
  • the first region 28 has a cylindrical outer wall which is engaged slidingly in that 13 of the bearings 13 and 14 which is closest to the crank 22.
  • the rod 11 further comprises a second region 32 which has a smaller diameter than the first region 28.
  • the second region 32 is made full, that is to say in particular non-tubular, and its outer wall cylindrical slides in the bearing 14 which is the most close to needle board 7, and in the sealing device 32.
  • the geometric axis 23 of the joint 18 between the rod 11 and the connecting rod 19, which extends parallel at the plane of the path of the web 3, is located, at least during part of the back and forth race, in the axial extent A covered by the two bearings 13 and 14 and between them, in other words between plans 24 and 26 which each limit one of the landings 13 and 14 on the side opposite the other bearing 14 or respectively 13.
  • axis 23 is always located in the axial extent A.
  • the joint 18 is carried out in the interior space 29 of the region tubular 28 and the connecting rod 19 is engaged in the space inside 29 by the open end 27.
  • the connecting rod 19 has a contour having a constriction 31 substantially in the plane of the end 27 of the rod 11 for allow the connecting rod 19 to undergo its deflection angular about the axis 23 of the joint 18 without that the opening at the end 27 must have too much large dimensions.
  • the rod 19 can be made longer than traditionally and the axial extent A can also be particularly large without the bulk of the needling machine is prohibitive since these two dimensions partially overlap. Thanks to the connecting rod 19 long, its maximum angular movement D is particularly weak for a race predetermined back and forth of needles 8. This minimizes parasitic lateral forces on the bearings 13 and 14 as well as certain types of vibration. Thanks to the axial extent A, the guide of the sliding rod It is of very good quality. Like the joint 18 no longer cantilevered from bearings 13 and 14, service efforts are less harmful to the bearings 13 and 14. The rod 11 undergoes less than bending. It is further reinforced by its structure tubular. The bearing 13 which is in service the most loaded has a considerably increased diameter which makes it particularly wear-resistant.
  • the needling machine according to the invention is capable of operating continuously at very high rates.
  • the connecting rod does not have to have a throttling, even in the event that it is articulated to inside a tubular region of the stem. For that, we can go up a little the joint 18 or increase the inside diameter of the end 27.
  • the invention is applicable to all types needling machine, in particular table needling machine perforated as described by way of example, but also velvet making needle, product to loops etc ...

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Finger-Pressure Massage (AREA)
  • Knitting Machines (AREA)

Claims (9)

  1. Nadelmaschine zur mechanischen Verfestigung eines Faservlieses, umfassend
    Mittel, um das Faservlies durchlaufen zu lassen,
    ein bewegliches System, umfassend einen Nadelbrett-Träger (9) und zumindest eine Stange (11), die so montiert ist, daß sie in einer Richtung (12) quer zum Vlies (3) in zwei axial beabstandeten Schiebelagern (14) schiebbar ist,
    für jede Stange (11) eine Pleuelstange (19) mit einem ersten Ende (21), das an eine Antriebskurbel (22) angelenkt ist, und einem zweiten Ende, das mit der Stange (11) über ein Gelenk (18) verbunden ist, um eine hin- und hergehende Bewegung zum Träger (9) zu übertragen,
    dadurch gekennzeichnet, daß die Stange (11) eine erste Region (28) mit relativ großem Außendurchmesser aufweist, die durch ein erstes (13) der Schiebelager gleitet, das an der Seite der Kurbel (22) angeordnet ist und einen entsprechenden relativ großen Durchmesser hat, wobei die Stange (11) einen kleineren Durchmesser hat in einer zweiten Region (32), die in dem anderen Lager (14) gleitet, das einen entsprechenden kleineren Durchmesser hat und an der Seite des Nadelbrett-Trägers (9) angeordnet ist.
  2. Nadelmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Stange (11) zumindest an einem Teil (28) ihrer Länge ausgehend vom Ende (27), das zur Pleuelstange (19) hin gerichtet ist, rohrförmig ausgeführt ist.
  3. Nadelmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gelenk (18) zwischen der Stange (11) und der Pleuelstange (19) im Inneren der Stange (11) ausgeführt ist.
  4. Nadelmaschine nach Anspruch 3, dadurch gekennzeichnet, daß sich die Achse (23) des genannten Gelenks (18) zumindest auf einem Teil ihres hin- und hergehenden Hubs in dem axialen Bereich (A) befindet, der durch die beiden Schiebelager (13, 14) und den zwischen ihnen befindlichen Zwischenraum abgedeckt wird.
  5. Nadelmaschine nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Pleuelstange (19), gesehen in einer Richtung parallel zur Achse des Gelenks (18), in der Region, die das rohrförmige Ende (27) der Stange durchquert, eine Einschnürung (31) aufweist.
  6. Nadelmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gelenk (18) zwischen der Pleuelstange (19) und der Stange (11) zwischen den Schiebelagern (13, 14) angeordnet ist.
  7. Nadelmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Stange (11) in der ersten Region (28) rohrförmig ausgeführt ist.
  8. Nadelmaschine nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die zweite Region (32) der Stange (11) voll ausgeführt ist.
  9. Nadelmaschine nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die zweite Region (32) der Stange (11) von einer Dichtigkeitsvorrichtung (32) umgeben ist.
EP95942219A 1994-12-08 1995-12-07 Nadelmaschine mit schubstange Expired - Lifetime EP0796363B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9414760 1994-12-08
FR9414760A FR2727990A1 (fr) 1994-12-08 1994-12-08 Aiguilleteuse a tige coulissante
PCT/FR1995/001618 WO1996017987A1 (fr) 1994-12-08 1995-12-07 Aiguilleteuse a tige coulissante

Publications (2)

Publication Number Publication Date
EP0796363A1 EP0796363A1 (de) 1997-09-24
EP0796363B1 true EP0796363B1 (de) 1999-08-11

Family

ID=9469593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95942219A Expired - Lifetime EP0796363B1 (de) 1994-12-08 1995-12-07 Nadelmaschine mit schubstange

Country Status (11)

Country Link
US (1) US5822834A (de)
EP (1) EP0796363B1 (de)
JP (1) JPH10510328A (de)
CN (1) CN1063500C (de)
AT (1) ATE183255T1 (de)
CA (1) CA2208426A1 (de)
DE (1) DE69511427T2 (de)
ES (1) ES2136323T3 (de)
FR (1) FR2727990A1 (de)
TW (1) TW284800B (de)
WO (1) WO1996017987A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408234B (de) * 1999-10-08 2001-09-25 Fehrer Textilmasch Vorrichtung zum nadeln eines vlieses
US6568050B2 (en) 2001-02-26 2003-05-27 Messier-Bugatti Method and installation for advancing a needled fiber plate
FR2887564B1 (fr) * 2005-06-22 2007-10-26 Asselin Soc Par Actions Simpli Appareil d'aiguilletage pour consolider une nappe de fibres
JP2010530034A (ja) * 2007-06-15 2010-09-02 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト フリースウェブをニードリングする装置
US7845055B1 (en) 2009-10-29 2010-12-07 Mcneil-Ppc, Inc. Tampon formed from a selectively needled nonwoven fabric web
CN101929038B (zh) * 2010-08-31 2012-02-01 东莞市爱克斯曼机械有限公司 一种无油式高速针刺机
CN102296427A (zh) * 2011-08-12 2011-12-28 江苏省仪征市海润纺织机械有限公司 一种高速针刺机的双主轴传动机构
FR3109586B1 (fr) * 2020-04-23 2022-05-13 Andritz Asselin Thibeau Aiguilleteuse elliptique à carter étanche et pot de guidage de traversée basculant
FR3109588B1 (fr) * 2020-04-23 2022-10-14 Andritz Asselin Thibeau Aiguilleteuse elliptique à carter étanche et pot de guidage de traversée
CN114775174B (zh) * 2022-03-08 2023-04-14 嘉兴学院 一种可改变针刺机布针位置的针板

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1343763A (en) * 1971-04-19 1974-01-16 Bywater Ltd William Apparatus for needling hair or fibre webs
US3798747A (en) * 1972-06-06 1974-03-26 Du Pont Conversion-rolling of titanium/steel bonded composite
US3798717A (en) * 1972-10-30 1974-03-26 Hunter Machine Co J Needle loom drives
GB1422546A (en) * 1973-04-06 1976-01-28 Weldstow Ltd Needle looms
AT392297B (de) * 1987-10-01 1991-02-25 Fehrer Textilmasch Nadelvorrichtung zum herstellen einer gemusterten filzbahn
AT392657B (de) * 1989-02-15 1991-05-27 Fehrer Textilmasch Vorrichtung zum nadeln einer warenbahn

Also Published As

Publication number Publication date
WO1996017987A1 (fr) 1996-06-13
CA2208426A1 (fr) 1996-06-13
CN1063500C (zh) 2001-03-21
DE69511427D1 (de) 1999-09-16
DE69511427T2 (de) 2000-05-04
TW284800B (de) 1996-09-01
ES2136323T3 (es) 1999-11-16
ATE183255T1 (de) 1999-08-15
EP0796363A1 (de) 1997-09-24
US5822834A (en) 1998-10-20
FR2727990A1 (fr) 1996-06-14
CN1174581A (zh) 1998-02-25
FR2727990B1 (de) 1997-02-28
JPH10510328A (ja) 1998-10-06

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