EP2250308B1 - Dispositif d'aiguilletage d'une bande fibreuse - Google Patents

Dispositif d'aiguilletage d'une bande fibreuse Download PDF

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Publication number
EP2250308B1
EP2250308B1 EP09718088A EP09718088A EP2250308B1 EP 2250308 B1 EP2250308 B1 EP 2250308B1 EP 09718088 A EP09718088 A EP 09718088A EP 09718088 A EP09718088 A EP 09718088A EP 2250308 B1 EP2250308 B1 EP 2250308B1
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EP
European Patent Office
Prior art keywords
balancing
crank
eccentric
fact
mass
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Application number
EP09718088A
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German (de)
English (en)
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EP2250308A1 (fr
Inventor
Tilman Reutter
Andreas Plump
Andreas Mayer
Daniel Bu
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Oerlikon Textile GmbH and Co KG
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Oerlikon Textile GmbH and Co KG
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Publication of EP2250308A1 publication Critical patent/EP2250308A1/fr
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    • 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
    • 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 invention relates to a device for needling a fibrous web according to the preamble of claim 1.
  • a needle bar In devices for needling a fibrous web, a needle bar, on the underside of which a multiplicity of needles are held, is driven in an oscillating up and down motion, so that the needles puncture the padded fiber web on a recurring basis.
  • crank gears are usually used, with an eccentrically rotating eccentric mass for mass balance are usually compensated by appropriate balancing weights on the crankshaft.
  • the mass effects due to the rotating us oscillating masses within the device can be kept so small that no inadmissible vibrations occur in the machine frame.
  • a fiber web drive concepts of the needle bar are now known, in which a superimposed aligned in the horizontal direction reciprocating motion of the needle bar is generated to the up and down movement.
  • Such a device is for example from the DE 196 15 697 A1 known.
  • the needle bar is driven by a vertical engine to an up and down movement and superimposed by a horizontal engine to a reciprocating motion.
  • the mass forces occur in the device both in the vertical direction and in the horizontal direction.
  • several balance shafts are arranged in the machine frame in the known device, which counteract by mass counter-rotating eccentric mass forces and inertial moments of the crank mechanisms.
  • This form of mass balance is technically very complex and requires a considerable amount of space within the device.
  • the free mass forces and moments of inertia occurring with variable stroke adjustment of the horizontal engine are particularly problematical because they increase quadratically with the stroke frequency and linearly with the lifting height.
  • higher stroke frequencies and thus higher production speeds and larger horizontal strokes of the needle bar in the known device inevitably lead to increased vibrations in the machine frame.
  • such vibrations are very negative in terms of noise and especially in terms of product quality.
  • Another object of the invention is to provide a device of the generic type which allows variable stroke settings of the needle bar with relatively large horizontal strokes and high stroke frequencies.
  • the invention is distinguished from the principle of compensating for mass forces acting on a crank drive by means of a counterweight arranged in an eccentric plane opposite the eccentric mass.
  • the invention is based on the recognition that the crank drive of the vertical engine can be used to counteract the vertically directed inertial forces and the horizontally directed inertial forces.
  • This is a balancing mass the mass balancing device associated with the crank drive of the vertical engine and arranged at an angle in the range ⁇ 180 ° offset to an eccentric of the crank drive.
  • the size of the balancing mass and the angular position of the balancing mass on the crank drive can be selected depending on the forces acting in the vertical direction and horizontal direction and mass moments.
  • the balancing mass is for this purpose arranged directly on a crankshaft or an eccentric shaft of the crank drive. It is irrelevant whether the superimposed horizontal movement of the needle bar is generated by a horizontal engine or in phase adjustment directly by the vertical engine. In any case, the occurring horizontal mass forces can be compensated by the balancing mass on the crank mechanism of the vertical engine.
  • the balancing mass is offset by the angle of 90 ° to the eccentric of the crank drive and a second balancing mass offset by the angle of 180 ° to the eccentric of the crank drive attached.
  • This can be the vertical mass forces of the needle bar on the crank drive completely compensate.
  • the horizontal mass forces is offset by 90 ° offset from the eccentric mass of the crank drive balancing mass.
  • the balancing weights assigned to a crank drive can be identical or different in size.
  • the choice of the size of the balancing weights is essentially dependent on the mass forces occurring during operation.
  • the vertical engine is preferably formed by two synchronously rotating crank drives.
  • each of the crank drives is assigned in each case one or more compensation masses.
  • each crank drive can be used to balance the mass of vertical and horizontal inertial forces.
  • the balancing weights on the crank drives of the vertical engine can be identical or different on each of the crank drives.
  • one of the crank drives can be equipped with two balancing weights, whereas, on the other hand, the second crank drive receives only one balancing weight.
  • the mass balancing device can also be expanded by arranging an additional balancing shaft with a circumferential eccentric mass within the machine frame.
  • the mass moments within the machine frame can be fully compensated.
  • the balancer shaft can be equipped with a rotating eccentric mass or with two eccentric masses that are offset by 90 °.
  • the phase adjustment preferably has two separately controllable servo motors, which are assigned to the crankshaft of the crank mechanisms of the vertical engine. This makes it possible, depending on the phase difference between the crankshafts, to realize strokes of different lengths during the horizontal movement.
  • the balance shaft is preferably arranged symmetrically to the two crankshafts of the crank mechanisms.
  • At least one further balancing mass is assigned to the crank drive of the horizontal engine and arranged offset by an angle in the range of ⁇ 180 ° relative to the eccentric of the crank drive.
  • balancing masses on the crank drive of the horizontal engine such that the balancing mass is held offset by 90 ° to the eccentric and a second balancing mass is arranged opposite to the eccentric mass.
  • the horizontal engine is preferably formed by two synchronously rotating crank drives.
  • at least one of the balancing weights is advantageously assigned to each of the crank drives.
  • crank drives of the horizontal engine are driven in opposite directions and designed to be adjustable in their phase positions.
  • balancing weights can be compensated in addition to the constant mass forces and the variable inertia forces. With a suitable choice of balancing weights thus the resulting mass force disappears approximately for each horizontal stroke adjustment between zero and a maximum stroke.
  • the crank drives of the horizontal engine are preferably connected by a coupling gear with the needle bar.
  • the drive movement of the crank drives via the coupling gear can be converted into an almost exclusive degree movement on the needle bar.
  • crank drives of the vertical engine and the horizontal engine are usually each by a driven crankshaft or a driven Exzenterwelle formed, which are connected via a connecting rod with a connecting rod.
  • the balancing weights are applied directly to the crankshaft or to the eccentric shaft.
  • a first embodiment of the device according to the invention for needling a fiber web is shown.
  • the embodiment is in the Fig. 1.1 and 1.2 shown in different operating situations. The description therefore applies to both figures.
  • the embodiment of the inventive device has a beam support 2, which holds a needle bar 1 on its underside.
  • the needle bar 1 holds on its underside a needle board 24 with a plurality of needles 25th
  • the vertical engine 3 is formed by two parallel crank mechanisms 4.1 and 4.2.
  • the crank drives 4.1 and 4.2 have two parallel juxtaposed crankshafts 5.1 and 5.2, which are arranged above the beam carrier 2.
  • the crankshafts 5.1 and 5.2 each have at least one eccentric 6.1 and 6.2 for receiving a respective connecting rod 7.1 and 7.2.
  • Fig. 1 are arranged on the beam support 2 connecting rods 7.1 and 7.2, which are held with their connecting rod heads on the eccentrics 6.1 and 6.2 of the crankshaft 5.1 and 5.2.
  • At the crankshafts 5.1 and 5.2 can still further - be arranged - connecting rods - not shown here.
  • the connecting rods 7.1 and 7.2 are connected with their free ends through the hinges 8.1 and 8.2 with the beam support 2.
  • the crankshafts 5.1 and 5.2 are driven synchronously or in opposite directions synchronously, so that the beam support 2 is guided at least approximately parallel.
  • the horizontal engine 10 engages via a crank drive 11.1 directly to the beam support 2.
  • the crank drive 11.1 of the horizontal engine 10 has for this purpose a crankshaft 12.1 and a connecting rod 14.1.
  • the connecting rod 14.1 is connected via an eccentric 13.1 with the crankshaft 12.1.
  • the connecting rod 14.1 is coupled by the rotary joint 15 with the beam support 2.
  • the crankshaft 12.1 is driven in synchronism with the crankshafts 5.1 and 5.2 of the vertical engine, so that the needle bar 1 performs a lifting movement with a constant horizontal stroke.
  • the vertical engine 3 and the horizontal engine 10 is associated with a mass balancing device to compensate for the mass forces of the crank mechanisms.
  • the mass balancing device is formed by a plurality of balancing masses which are assigned to the crank drives 4.1, 4.2 and 5.1.
  • the crank drive 4.1 has the balancing weights 9.1 and 9.2.
  • the balancing mass 9.1 is this offset by an angle of 180 ° to the eccentric 6.1 on the crankshaft 5.1.
  • the balancing mass 9.2 is held at an angle of 90 ° offset from the eccentric 6.1 on the crankshaft 5.1.
  • a third balancing mass 9.3 is arranged as a counterweight on the crank drive 4.2.
  • the balancing mass is 9.3 offset by an angle of 180 ° to the eccentric 6.2 arranged on the crankshaft 5.2.
  • the crank drive 11.1 of the horizontal engine 10, the balancing weights 16.1 and 16.2 are assigned.
  • the balancing mass 16.1 is this offset by the angle of 180 ° to the eccentric 13.1 held on the crankshaft 12.1.
  • the other balancing mass 16.2 is offset by the angle of 90 ° to the eccentric 13.1 attached to the crankshaft 12.1.
  • the embodiment is in Fig. 1.1 shown in an operating situation in which the needle bar is shown in an upper position with vertically directed inertial forces.
  • Fig. 1.2 the embodiment is shown in contrast in a central beam position in which horizontal inertial forces are effective.
  • the mass forces generated by the balancing weights 9.1, 9.2, 9.3, 16.1 and 16.2 are shown as vectors.
  • the force vector of the balancing mass 9.1 is marked with the code letter F E1 .
  • the mass force of the balancing mass 9.2 is referred to the crank drive 4.1 by the letter F N1 .
  • the force vector of the balancing mass 9.3, which is assigned to the crank drive 4.2 denoted by the letter F E2 .
  • the the crank mechanism 11.1 of the horizontal engine 10 associated balancing weights 16.1 and 16.2 are denoted by the code letters F N3 and F E3 and shown as force vectors.
  • the balancing weights 9.2 and 16.2, which cause the mass forces F N1 and F N3 , are now chosen so that they cancel each other in each position of the needle bar and cause a mass moment to compensate for the caused by the working line distance between beam forces and balancing forces mass moment.
  • Fig. 1.1 and 1.2 illustrated embodiments are basically two ways to attach the balancing weights to the respective crank drive.
  • Fig. 2 is shown a further possible arrangement of a balancing mass, as they can be performed alternatively, for example, to the crank drive 4.1 of the vertical drive unit 3 or the crank drive 11.1 of the horizontal engine 10.
  • the crank drive 4.1 is assigned a compensating mass 9.2.
  • the balancing mass 9.2 is offset by an angle ⁇ to the eccentric 6.1 of the crankshaft 5.1.
  • the angle ⁇ is less than 180 ° and preferably chosen such that both horizontally acting and vertically acting forces can be compensated by the balancing mass 9.2.
  • the number of balancing weights can be reduced while maintaining the same effect.
  • Fig. 3.1 and 3.2 is a further embodiment of the erfindungsgeffle ⁇ en device schematically in a side view in several operating positions shown.
  • the embodiment according to Fig. 3.1 and 3.2 is essentially identical to the embodiment according to Fig. 1.1 and 1.2 , so that at this point only the differences will be explained and otherwise reference is made to the above description.
  • Fig. 3.1 the embodiment is in an upper position of the needle bar and in Fig. 3.2 shown in a middle position of the needle bar.
  • two needle bars 1.1 and 1.2 are held on the beam support 2, each carrying a needle board 24 and a plurality of needles 25 on their undersides.
  • the beam support 2 is coupled to a vertical engine 3, which is identical to the aforementioned embodiment.
  • a central pivot 15 for horizontal movement of the beam support 2 of the beam support 2 is coupled via a central pivot 15 with a handlebar 19.
  • the rotary joint 15 is arranged substantially with the hinges 8.1 and 8.2 for connecting the vertical engine 3 at a common height on the beam support 2, so that arranged to the transverse sides of the beam support 2 link 19 allow the power instructions and the leadership of the beam support 2 ,
  • a horizontal engine 10 is provided, which is formed by two crank drives 11.1 and 11.2.
  • the crank mechanisms 11.1 and 11.2 each have a crankshaft 12.1 and 12.2, which are arranged parallel to each other and together with the crankshafts 5.1 and 5.2 of the vertical engine 3 form a common drive plane.
  • the crankshafts 12.1 and 12.2 are connected via their eccentric 13.1 and 13.2 each with a connecting rod 14.1 and 14.2.
  • the connecting rods 14.1 and 14.2 are directed in an inclined position to each other, so that the free ends of the connecting rods 14.1 and 14.2 are connected via a double pivot joint 21 together with a coupling gear 17.
  • the coupling mechanism 17 consists in this embodiment of a rocker arm 18 which is pivotally mounted on a pivot bearing 26.
  • the rocker arm 18 has at a free end below the pivot bearing 26 has a pivot, with which the link 19 is connected to the rocker arm 18.
  • a further rotary joint is provided, on which a push rod 20 engages.
  • the push rod 20 is coupled to an opposite end by the double pivot 21 with the connecting rods 14.1 and 14.2.
  • crankshafts 12.1 and 12.2 of the crank mechanisms 11.1 and 11.2 are driven in opposite directions at the same speed, wherein the phase angles of the crankshafts 12.1 and 12.2 are adjustable relative to each other in dependence on a desired horizontal stroke.
  • the phase angles and thus the desired horizontal stroke of the crankshafts 12.1 and 12.2 can be carried out, for example, by two separate servomotors which effect a rotation of the crankshafts 12.1 and 12.2 relative to each other.
  • the drive of the crankshafts 14.1 and 14.2 can be carried out by a common drive or separately via separate drives.
  • a mass balancing device which is formed by a plurality of the crank mechanisms associated with balancing masses.
  • Each of the crank drives 4.1 and 4.2 of the vertical engine 3 has two balancing weights.
  • a first balancing mass is arranged as a counterweight on the crank drives 4.1 and 4.2 and arranged at an angle of 180 ° offset from the eccentrics 6.1 and 6.2 of the crankshafts 5.1 and 5.2.
  • the balancing weights are denoted by the reference numeral 9.1 on the crank drive 4.1 and 9.3 on the crank drive 4.2.
  • a second balancing mass is arranged offset by 90 ° to the eccentrics 6.1 and 6.2 at the shafts 5.1 and 5.2.
  • the balancing weights 9.2 and 9.4 of the crank drive 4.1 and 4.2 are designed to be larger in mass than the balancing weights 9.1 and 9.3.
  • the crank mechanisms 11.1 and 11.2 of the horizontal engine 10 each have a balancing mass 16.1 and 16.2.
  • the balancing mass 16.1 is offset at an angle ⁇ 180 ° to the eccentric 13.1 of the crankshaft 12.1.
  • the angle ⁇ which denotes the offset between the eccentric 13.1 and the balancing mass 16.1 on the crankshaft 12.1, is approximately 20 ° in this exemplary embodiment.
  • the position of the balancing mass 16.1 and also the position of the balancing mass 16.2 is essentially determined by the arrangement of the crank drives 11.1 and 11.2 to each other.
  • the connecting rods 14.1 and 14.2 are arranged in an inclined position and connected to each other via the double pivot 21.
  • the balancing mass 16.2 on the crank drive 11.2 is thus mounted in the same position and in the same size on the crank drive 11.2.
  • both the crank drives 4.1 and 4.2 of the vertical engine 3 and the crank mechanisms 11.1 and 11.2 of the horizontal engine 10 are driven synchronously and in opposite directions.
  • Fig. 3.1 the situation is shown in which the beam support 2 is held with the needle bar 1.1 and 1.2 in an upper dead center.
  • the Fig. 3.2 represents the embodiment in the operating situation, in which the beam support 2 with the needle bar 1.1 and 1.2 in a middle position when performing a horizontal movement.
  • the masses 9.1 to 9.4 and the balancing weights 16.1 and 16.2 associated mass forces are the code letters F A and F E designated.
  • the four compensating forces F A1 to F A4 of the balancing weights 9.2, 9.4, 16.1 and 16.2 compensate each other in the dead states of the beam carrier 2 as shown in FIG Fig. 3.1 is apparent.
  • the mass forces F E1 and F E2 caused by the balancing weights 9.1 and 9.4 are opposite to the mass force F B acting on the beam carrier 2. Between the death positions remains due to the misalignment of the force components, a resultant inertial force.
  • balancing weights 9.2, 9.4, 16.1 and 16.2 is with this force component, the horizontal Mass force of the beam carrier with the needle bar 1.1 and 1.2 compensated in the horizontal direction.
  • the compensating force changes only slightly, especially at low adjustment angles and thus misalignment of the force components, so that the force compensation for each horizontal stroke up to a maximum adjustment angle of about 20 ° is maintained in very good nutrition, as can be seen from the situation in Fig. 3.2 evident.
  • the mass balance for example, to an adjustment angle that is different from zero.
  • the balancing weights are mounted on the crank drives 11.1 and 11.2 of the horizontal engine 10 rotated by the angle ⁇ , so that the corresponding balancing forces are perpendicular at a corresponding adjustment angle.
  • the balancing weights 9.1 to 9.4 on the crank drives 4.1 and 4.2 of the vertical engine 3 are to be adapted in this case so that the mass forces in the vertical and horizontal directions are balanced for the region of the horizontal stroke.
  • Fig. 3.1 and 3.2 illustrated embodiment of the device according to the invention run with a mass balancing device, in which in addition to the balancing masses in addition a balance shaft is provided with a circumferential eccentric mass.
  • a mass balancing device in which in addition to the balancing masses in addition a balance shaft is provided with a circumferential eccentric mass.
  • the mass balancing device on several balancing weights and a balancer shaft with rotating eccentric mass.
  • the balancing shaft 22 is arranged in the drive plane between the crank drives 11.1 and 11.2 of the horizontal engine 10.
  • the balance shaft 22 extends parallel to the lying in the drive plane crankshafts 12.1 and 12.2, which are also held parallel to the arranged in the same plane crankshafts 5.1 and 5.2 of the vertical engine 3.
  • an eccentric mass 23 is arranged.
  • the balancing shaft 22 is driven synchronously to the crankshafts 12.1 and 12.2 of the crank drives 11.1 and 11.2, wherein the balancer shaft 22 and the crankshaft 12.1 have the same direction of rotation.
  • the balancing weights 16.1 and 16.2 are arranged on the crankshafts 12.1 and 12.2 of the crank drives 11.1 and 11.2.
  • the arrangement is identical to the embodiment described above Fig. 3.1 ,
  • the crank mechanisms 4.1 and 4.2 of the vertical engines 3 are also each two balancing weights assigned in an offset arrangement to each other.
  • the balancing weights 9.1 and 9.2 are assigned to the crank drive 4.1 and the balancing weights 9.3 and 9.4 to the crank drive 4.2.
  • the balancing weights 9.1 to 9.4 of the crank drives 4.1 and 4.2 are designed differently in size.
  • the balancing mass 9.2, which is arranged essentially to compensate for horizontal mass forces on the crank drive 4.1, is smaller than the balancing mass 9.4 on the second crank drive 4.2 of the vertical engine 3.
  • Fig. 5 a further embodiment of the apparatus according to the invention for needling a fibrous web is shown schematically in a side view.
  • the embodiment according to Fig. 5 differs essentially from the aforementioned embodiments in that no separate horizontal engine is present to produce a superimposed horizontal movement of the needle bar.
  • the superimposed horizontal movement of the needle bar via the vertical engine 3 is initiated.
  • the vertical engine connected to the beam support 2 has two parallel juxtaposed crank drives 4.1 and 4.2.
  • the crank drives 4.1 and 4.2 have two parallel juxtaposed crankshafts 5.1 and 5.2, which are arranged above the beam carrier 2.
  • the crankshafts 5.1 and 5.2 each have at least one eccentric section for receiving at least one connecting rod.
  • Fig. 5 are arranged on a beam support 2 connecting rods 7.1 and 7.2, which are guided with their connecting rod heads on the crankshafts 5.1 and 5.2.
  • the crankshafts 5.1 and 5.2 are assigned a phase adjustment device 36.
  • the phase adjustment device 36 has two servomotors 34.1 and 34.2, which are assigned to the crankshafts 5.1 and 5.2.
  • the servomotors 34.1 and 34.2 are connected to a control device 35. Via the control device 35, the servomotors 34.1 and 34.2 can be activated independently of one another in order to turn the crankshafts 5.1 and 5.2 in their positions. Thus, the phase angle between the two crankshafts 5.1 and 5.2 can be adjusted. In addition to the pure vertical up and down movement of the beam support 2 can thereby perform a superimposed horizontal movement of the beam support 2.
  • phase adjustment between the crankshafts 5.1 and 5.2 is directly proportional to a stroke length of the horizontal movement. The stroke of the horizontal movement can therefore be adjusted via the phase angle of the crankshafts 5.1 and 5.2.
  • a phase difference is set between the crankshafts 5.1 and 5.2, so that the beam support 2 with the needle bar 1.1 and 1.2 performs a constant stroke in the horizontal direction.
  • a guide device 27 is provided.
  • the guide device has a link 19, which is connected to a free end via a rotary joint 15 with the beam support 2.
  • a first rocker 28 which is connected via a pivot bearing 32 to a machine frame and a rotary joint 30 with the handlebars.
  • a second rocker 29 is provided, which is held via a pivot 31 in the central region of the link 19 and a pivot bearing 33.
  • the guide device 27 is arranged above the beam support 2.
  • the pivot bearings 32 and 33 are arranged between the connecting rods 7.1 and 7.2.
  • the link 19 is connected in the middle of the beam via the rotary joint 15 with the beam support. This allows a secure guidance of the beam support during the drive movement realized by the vertical engine 3.
  • the cranks drives 4.1 and 4.2 associated mass balancing device is formed in this embodiment by a total of four balancing weights 9.1, 9.2, 9.3 and 9.4.
  • the balancing weights 9.1 and 9.2 are assigned to the crankshaft 5.1.
  • the balancing weights 9.3 and 9.4 are on the crankshaft 5.2 attached.
  • the balancing mass 9.1 is arranged on the crankshaft 5.1 offset by the angle 180 ° to the eccentric 6.1.
  • the balancing mass 9.2 is offset by an angle of 90 ° to the first balancing mass 9.1 attached to the crankshaft 5.1.
  • the balancing mass 9.3 is offset by 180 ° relative to the eccentric 6.2 on the crankshaft 5.2.
  • the balancing mass 9.4 is offset by the angle of 90 ° to the first balancing mass 9.3 held on the crankshaft 5.2.
  • the mass balancing device additionally has a balancing shaft 22, which is arranged above the crankshafts 5.1 and 5.2.
  • the balance shaft 22 is held symmetrically to the crank drives 4.1 and 4.2.
  • two eccentric weights 23.1 and 23.2 are arranged at the balance shaft 22 .
  • the balancer shaft 22 extends parallel to the crankshafts 5.1 and 5.2 and is driven in synchronism with the crankshafts 5.1 and 5.2.
  • the sense of rotation of the balance shaft 22 and the sense of rotation of the crankshafts 5.1 and 5.2 is in Fig. 5 each indicated by an arrow.
  • the invention extends not only to the in Fig. 1 . 3 and 4 shown embodiments of a device for needling a fiber web, but can also be advantageous to other engine concepts, in which the needle bar is performed with a constant horizontal stroke or with variable Horizontalh Wegney 2000 use. Particularly advantageous is the invention in such devices, in which the stroke adjustment of the horizontal stroke takes place by rotation of two eccentric shafts to each other. It should be expressly mentioned at this point that the invention is not limited to the fact that the crank mechanisms are driven by crankshafts. Basically, the crankshafts can easily be replaced by eccentric shafts.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Transmission Devices (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (14)

  1. Dispositif d'aiguilletage d'une bande fibreuse avec au moins une barre d'aiguilles entraînée (1), avec un réacteur vertical (3) pour un mouvement oscillatoire de la barre d'aiguilles (1) en un mouvement vertical vers le haut et vers le bas, avec un réacteur horizontal (10) ou une installation d'ajustement de phase (36) attribuée au réacteur vertical (3), pour effectuer un mouvement oscillatoire interféré de la barre d'aiguilles (1) en un mouvement horizontal de va - et vient, le réacteur vertical (3) ayant des entraînements à manivelle séparés (4.1, 4.2), et avec une installation pour l'équilibrage des masses (9.1, 9.2) pour équilibrer la force de masse des entraînements à manivelle (4.1, 4.2), caractérisé en ce que l'installation pour l'équilibrage des masses (9.1, 9.2) est formée par au moins une masse d'équilibrage (9.2) qui est attribuée à l'entraînement à la manivelle (4.1) du réacteur vertical (3) et qui suivant un angle (α) de l'ordre de < 180° est agencée de façon décalée par rapport à un excentrique (6.1) de l'entraînement à la manivelle (4.1).
  2. Dispositif selon la revendication 1, caractérisé en ce que la masse d'équilibrage (9.2) est agencée suivant l'angle de 90° de façon décalée par rapport à l'excentrique (6.1) de l'entraînement à la manivelle (4.1) et en ce qu'une deuxième masse d'équilibrage (9.2) est agencée suivant l'angle de 180° de façon décalée par rapport à l'excentrique (6.1) de l'entraînement à la manivelle (4.1).
  3. Dispositif selon la revendication 2, caractérisé en ce que les deux masses d'équilibrage (9.1, 9.2) ont la même taille ou n'ont pas la même taille.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le réacteur vertical (3) est formé par deux entraînements à la manivelle (4.1, 4.2) qui s'étendent de manière synchrone et circonférentielle et en ce que l'installation pour l'équilibrage des masses (9.1, 9.2) est formée par une pluralité de masses d'équilibrage (9.1, 9.2) qui sont attribuées aux deux entraînements à la manivelle (4.1, 4.2).
  5. Dispositif selon la revendication 3, caractérisé en ce qu'au moins respectivement une des masses d'équilibrage (9.1 - 9.2) est attribuée aux excentriques (6.1, 6.2) des entraînements à la manivelle (4.1, 4.2) du réacteur vertical (3).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que l'installation pour l'équilibrage des masses a un arbre d'équilibrage (22) supplémentaire avec une masse excentrique qui s'étend de manière périphérique (23) ou avec deux masses excentriques avec décalage suivant un angle de 90°(23.1, 23.2).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que l'installation d'ajustement de phase (36) a deux servomoteurs (34.1, 34.2) attribués aux vilebrequins (5.1, 5.2) des entraînements à la manivelle (4.1, 4.2) et en ce que l'arbre d'équilibrage (22) est agencé symétriquement par rapport aux vilebrequins (5.1, 5.2).
  8. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que le réacteur horizontal (10) dispose au moins d'un entraînement à manivelle (11.1) séparé et en ce qu'au moins une masse d'équilibrage supplémentaire (16.1) est prévue qui est attribuée à l'entraînement à manivelle (11.1) du réacteur horizontal (10) et qui est agencée de façon décalée par rapport à un excentrique suivant un angle de l'ordre plus petit que 180°.
  9. Dispositif selon la revendication 8, caractérisé en ce que la masse d'équilibrage (16.1) est agencée suivant l'angle de 90° décalé par rapport à l'excentrique (13.1) de l'entraînement à manivelle et en ce qu'une deuxième masse d'équilibrage (16.2) est agencée suivant l'angle de 180°, décalée par rapport à l'excentrique (13.1) de l'entraînement à la manivelle (11.1).
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce que le réacteur horizontal (10) est formé par deux entraînements à manivelle s'étendant synchroniquement de manière périphérique (11.1, 11.2) et qu'au moins une des masses d'équilibrage (16.1, 16.2) est attribuée à chacun des entraînements à manivelle (11.1, 11.2).
  11. Dispositif selon la revendication 10, caractérisé en ce que les entraînements à manivelle (11.1, 11.2) du réacteur horizontal (10) peuvent être entraînés de manière opposée et en ce que pour ajuster une course les couches des phases des deux entraînements à manivelle (11.1, 11.2) sont réalisées de manière à pouvoir être ajustées.
  12. Dispositif selon la revendication 10 ou 11, caractérisé en ce que le réacteur horizontal (10) a une boite à vitesses de couplage (17) qui crée la liaison entre les entraînements à manivelle (11.1, 11.2) et la barre d'aiguilles (1).
  13. Dispositif selon l'une des revendications 1 à 12, caractérisé en ce que les entraînements à manivelle (4.1, 4.2, 11.1, 11.2) ont respectivement un vilebrequin (5.1, 5.2, 12.1, 12.2) ou un excentrique entraîné et une bielle (7.1, 7.2, 14.1, 14.2) reliée avec le vilebrequin ou avec l'excentrique à l'intermédiaire d'une tête de bielle.
  14. Dispositif selon la revendication 13, caractérisé en ce que la masse d'équilibrage (9.2) ou les masses d'équilibrage (9.1 - 9.4, 16.1, 16.2) sont agencées sur le vilebrequin (5.1, 5.2, 12.1, 12.2) ou sur l'excentrique.
EP09718088A 2008-03-03 2009-03-02 Dispositif d'aiguilletage d'une bande fibreuse Not-in-force EP2250308B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008012294 2008-03-03
DE102008021958 2008-05-02
PCT/EP2009/052467 WO2009109553A1 (fr) 2008-03-03 2009-03-02 Dispositif d’aiguilletage d’une bande fibreuse

Publications (2)

Publication Number Publication Date
EP2250308A1 EP2250308A1 (fr) 2010-11-17
EP2250308B1 true EP2250308B1 (fr) 2011-09-21

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EP09718088A Not-in-force EP2250308B1 (fr) 2008-03-03 2009-03-02 Dispositif d'aiguilletage d'une bande fibreuse

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US (1) US8099840B2 (fr)
EP (1) EP2250308B1 (fr)
CN (1) CN101960065B (fr)
AT (1) ATE525509T1 (fr)
WO (1) WO2009109553A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE202020106554U1 (de) 2020-11-16 2022-02-17 Autefa Solutions Austria Gmbh Nadelmaschine

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DE102013009267A1 (de) * 2013-06-04 2014-12-18 Autefa Solutions Germany Gmbh Vorrichtung zum Vereinzeln von Nadeln
EP2886694B1 (fr) * 2013-12-17 2016-09-07 Oskar Dilo Maschinenfabrik KG Procédé d'entraînement d'une planche à aiguilles dans une aiguilleteuse
CN106436033B (zh) * 2016-11-03 2018-08-31 汕头三辉无纺机械厂有限公司 单主轴单针区针刺机的针刺机构
EP3372716B1 (fr) * 2017-03-09 2019-09-04 Oskar Dilo Maschinenfabrik KG Aiguilleteuse
CN110409062A (zh) * 2019-07-17 2019-11-05 王永祥 一种杠杆水平对置平衡式超高速针刺机
FR3109587B1 (fr) * 2020-04-23 2022-05-20 Andritz Asselin Thibeau Dispositif de commande du mouvement des aiguilles d’une aiguilleteuse, notamment elliptique, et aiguilleteuse comportant un tel dispositif
CN115199704B (zh) * 2022-09-15 2022-11-29 仪征市佳禾机械有限公司 一种用于针刺机的动平衡装置

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US5732453A (en) * 1995-09-15 1998-03-31 Oskar Dilo Maschinenfabrik Kg Needle bar driving apparatus of a needle loom
DE19615697B4 (de) * 1995-09-15 2006-04-20 Oskar Dilo Maschinenfabrik Kg Nadelbalkenantrieb einer Nadelmaschine
AT406390B (de) * 1998-03-31 2000-04-25 Fehrer Textilmasch Vorrichtung zum nadeln eines vlieses
AT408235B (de) * 1999-10-29 2001-09-25 Fehrer Textilmasch Vorrichtung zum nadeln eines vlieses
AT412162B (de) 2002-10-07 2004-10-25 Fehrer Textilmasch Vorrichtung zum nadeln eines vlieses
FR2862988B1 (fr) * 2003-11-28 2007-11-09 Fehrer Textilmasch Dispositif d'aiguilletage d'un matelas de fibres
DE102004043890B3 (de) * 2004-09-08 2006-04-20 Oskar Dilo Maschinenfabrik Kg Nadelmaschine
FR2887564B1 (fr) * 2005-06-22 2007-10-26 Asselin Soc Par Actions Simpli Appareil d'aiguilletage pour consolider une nappe de fibres
FR2887563B1 (fr) * 2005-06-22 2009-03-13 Asselin Soc Par Actions Simpli "procede et installation pour aiguilleter une nappe de fibres mettant en oeuvre deux planches a aiguilles"
AT502044B1 (de) * 2005-10-27 2007-01-15 Neumag Saurer Austria Gmbh Vorrichtung zum nadeln eines vlieses
CN100489174C (zh) * 2005-12-16 2009-05-20 厦门三维丝环保工业有限公司 一种聚四氟乙烯纤维针刺过滤毡的制作工艺
TW200806839A (en) * 2006-05-20 2008-02-01 Saurer Gmbh & Amp Co Kg Apparatus for needling a non-woven web

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Publication number Priority date Publication date Assignee Title
DE202020106554U1 (de) 2020-11-16 2022-02-17 Autefa Solutions Austria Gmbh Nadelmaschine
US11639568B2 (en) 2020-11-16 2023-05-02 Autefa Solutions Austria Gmbh Needling machine and needling process

Also Published As

Publication number Publication date
EP2250308A1 (fr) 2010-11-17
WO2009109553A1 (fr) 2009-09-11
CN101960065B (zh) 2012-03-14
CN101960065A (zh) 2011-01-26
ATE525509T1 (de) 2011-10-15
US8099840B2 (en) 2012-01-24
US20110047767A1 (en) 2011-03-03

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