EP2886694A1 - Procédé d'entraînement d'une planche à aiguilles dans une aiguilleteuse - Google Patents

Procédé d'entraînement d'une planche à aiguilles dans une aiguilleteuse Download PDF

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Publication number
EP2886694A1
EP2886694A1 EP13197633.4A EP13197633A EP2886694A1 EP 2886694 A1 EP2886694 A1 EP 2886694A1 EP 13197633 A EP13197633 A EP 13197633A EP 2886694 A1 EP2886694 A1 EP 2886694A1
Authority
EP
European Patent Office
Prior art keywords
needle
needle bar
driving
oscillating drive
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.)
Granted
Application number
EP13197633.4A
Other languages
German (de)
English (en)
Other versions
EP2886694B1 (fr
Inventor
Johann Philipp Dilo
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.)
Oskar Dilo Maschinenfabrik KG
Original Assignee
Oskar Dilo Maschinenfabrik KG
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 Oskar Dilo Maschinenfabrik KG filed Critical Oskar Dilo Maschinenfabrik KG
Priority to EP13197633.4A priority Critical patent/EP2886694B1/fr
Priority to US14/572,304 priority patent/US9273420B2/en
Priority to CN201410785341.4A priority patent/CN104711777B/zh
Publication of EP2886694A1 publication Critical patent/EP2886694A1/fr
Application granted granted Critical
Publication of EP2886694B1 publication Critical patent/EP2886694B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 invention relates to a method for driving a needle bar in a needle machine.
  • a nonwoven web continuously transported through the needle machine is solidified.
  • the needle bar executes a movement directed only perpendicularly to the direction of movement of the nonwoven web
  • the continuously transported nonwoven web is braked by the needles in the period of the needling cycle in which the needles are inserted into the nonwoven web. This leads to an undesired distortion of the fiber fleece and to a cyclically occurring elastic bending of the needles.
  • the present invention has for its object to provide a method for driving a needle bar in a needle machine, with a higher transport speed of the fibrous web is made possible by the needle machine and / or with a higher number of punctures in the nonwoven fabric.
  • the Kleinpleuel is substantially aligned horizontally. In this way, the Hauptpleuel can provide without special mechanical additional designs for a large horizontal feed per stroke. It is also conceivable that the Heilpleuel on other mechanical Constructions is indirectly connected to the needle bar, or that the Hauptpleuel shows an oblique orientation.
  • the first oscillating drive is an eccentric drive
  • a horizontal stroke component of a center of gravity of the needle bar caused by the first oscillating drive is at least 25%, more preferably at least 50%, even more preferably at least 75% greater than one oscillating through the first Drive caused Vertikalhubkomponente the center of gravity of the needle bar.
  • the first frequency is in the range of 500 to 2,500 strokes per minute, more preferably in the range of 1,000 to 2,000 strokes per minute.
  • this relatively low stroke frequency still leads to a fast transport speed of the nonwoven fabric.
  • the secondary connecting rod is oriented substantially vertically. In this way, the vertical back and forth movements of the needle bar desired by the auxiliary connecting rod are implemented in a particularly simple manner, without the need for additional mechanical components.
  • the second frequency is preferably in the range of 2,000 to 10,000 strokes per minute, more preferably in the range of 2,000 to 4,000 strokes per minute (as long as it is higher than the first frequency, preferably at least 100% higher, more preferably at least 200% higher, even more preferably at least 300% higher). This way will ensures that the second frequency is so high that occur per horizontal feed with at least two, preferably at least three or more punctures of the needles in the nonwoven web.
  • a second vertical stroke component of a center of gravity of the needle bar caused by the second oscillating drive is at least 20%, more preferably at least 30%, even more preferably at least 40% less than a first vertical stroke component of the center of gravity of the needle bar caused by the first oscillating drive. In this way, it is ensured that, in the region of the horizontal return stroke, the needles remain out of engagement with the fiber fleece, despite the vertical reciprocating motion produced by the second oscillating drive.
  • a center of gravity of the needle bar during a puncturing cycle preferably follows a path that is essentially the basic shape of a recumbent ellipse with additional superimposed minor sinusoidal bulges and depressions has on the long sides.
  • several punctures per horizontal feed of the needle bar can be done in the lower part of the elliptical path, while the needles remain in the horizontal return stroke of the needle bar despite the small sinusoidal bulges and depressions of the curve out of engagement with the fiber fleece.
  • the needle board may preferably have a needle density of at least 15,000 needles per meter of board length, more preferably at least 20,000 needles per meter of board length.
  • a brush belt is preferably used instead of the otherwise usual needle plate as a pad for the pile or the nonwoven to be needled, on which rests the pile or fleece.
  • the nap or web transported in the needle machine be held down during needle punching of wires stretched over the brush belt.
  • a needling machine 1 is shown schematically at a very high level of abstraction.
  • the brush belt 3 is a circulating brush belt which is continuously driven by suitable drives (not shown).
  • the pile or the fiber fleece in this case rests on the upper run of the brush belt 3 and is preferably held down from above by the brush belt 3 tensioned wires 5, which extend in the transport direction A.
  • another conventional drive for the nonwoven fabric can be used.
  • the nonwoven fabric can be guided over a throat plate provided with longitudinal slots.
  • the wires 5 also conventional hold-down with corresponding longitudinal recesses can be used.
  • the brush belt 3 and the wires 5 provide the advantage of greater freedom of movement of the needle bar 7 in the transport direction A of the nonwoven fabric, as will be explained in more detail below.
  • the needle bar 7 carries at least one needle board 9, in which a plurality of needles 11 is arranged.
  • the needle bar 7 is driven by a first oscillating drive 13, which comprises a main connecting rod 15.
  • this first movement is superimposed by a second, primarily vertical movement, which is generated by a second oscillating drive 17, which has a Maupleuel 19.
  • oscillating drive here is to be understood as meaning both a drive which causes a reciprocating movement of the needle bar in one direction only, and a drive which causes a reciprocating movement of the needle bar in a first direction and in a direction perpendicular thereto united together (eg drive via crank disc).
  • the first oscillating drive 13 is an eccentric drive and has in the illustrated example case in addition to the Hauptpleuel 15 a crank disc 21 which is driven in rotation and on the eccentrically a crank pin 23 is arranged, which in turn is rotatably connected to the Hauptpleuel 15.
  • the other end of Hauptpleuels 15 is rigidly connected to the needle bar 7.
  • the Schmidtpleuel 15 is aligned substantially horizontally. It is also preferably relatively long, because the ratio of length of the Kleinpleuels 15 to the eccentricity of the drive significantly determines the extent of unwanted tilting movement of the needle bar 7 during a puncture cycle.
  • the second oscillating drive 17 is also an eccentric drive in the illustrated embodiment and comprises a crank pulley 25 and a crank pin 27 attached to it eccentrically, which rotates about its center upon rotation of the crank pulley 25.
  • the Superpleuel 19 is again rotatably mounted on the crank pin 27 and arranged substantially vertically above the Hauptpleuels 15.
  • the Maupleuel 19 is connected at its lower end via a hinge 29 to the Hauptpleuel 15.
  • the connection point of the Maupleuels 19 with the Hauptpleuel 15 is located in a region of the Hauptpleuels 15, which is relatively close to the needle bar 7 (for example, in the front quarter or front third of Hauptpleuels 15).
  • the Superpleuel 19 is significantly shorter than the Hauptpleuel 15.
  • the crank disks 21, 25 of the first oscillating drive 13 and the second oscillating drive 17 are both driven in the same direction of rotation.
  • the first oscillating drive 13 is driven at a first frequency
  • the second oscillating drive 17 is driven at a second frequency.
  • the second frequency is always higher, preferably significantly higher than the first frequency.
  • the first frequency is in the range of 500 to 2,500 strokes per minute, preferably in the range of 1,000 to 2,000 strokes per minute.
  • the second frequency is preferably in the range of 2,000 to 10,000 strokes per minute, more preferably in the range of 2,000 to 4,000 strokes per minute. This also applies to all embodiments of the drive mechanism shown below.
  • the first oscillating drive 13 provides the basic shape of the trajectory traversed by a center of gravity of the needle bar 7, while the smaller movements of the center of gravity of the needle bar 7 caused by the second oscillating drive 17 result in modulations of this basic shape of the trajectory. This will be with reference to 6 and 7 discussed in more detail.
  • first oscillating drive 13 and the second oscillating drive 17 are many more embodiments of the same possible.
  • the person skilled in the art will be able to find a whole series of alternatives which lead to the same functionality. Examples of this are other eccentric drives such as eccentric shaft, crank, camshaft or eccentric ram with return spring.
  • hydraulically oscillating drives or pneumatically oscillating drives can be used in particular as second oscillating drives 17.
  • the drive mechanism for the needle bar 7 comprises a first oscillating drive 13, which is substantially identical to the first oscillating drive 13 from Fig. 2 is.
  • the second oscillating drive 17 is substantially identical to the second oscillating drive 17 Fig. 2
  • the Maupleuel 19 is in turn connected via a hinge 29 to the Hauptpleuel 15.
  • the front end of the Hauptpleuels 15 is connected via a hinge 31 to the needle bar 7.
  • the needle bar 7 in turn is rigidly connected to a guide lever 33, which extends substantially vertically and is connected in its upper end region via a pivot 35 with a rigid guide rod 37.
  • the guide rod 37 extends substantially horizontally to the rear, ie in the direction of the first and second oscillating drive 13, 17.
  • the Guide rod 37 via a further rotary joint 39 rotatably anchored in the machine frame 41.
  • a first oscillating drive 13 which is substantially identical to the first oscillating drive 13 according to the embodiments of Fig. 2 and 3 is.
  • the Hauptpleuel 15 is again rigidly connected to the needle bar 7 at its front end.
  • the central shaft 43 of the first oscillating drive 13 in this case drives via a toothed belt 45 to a further eccentric drive 47, which in turn may consist of a crank disk 49 and a crank pin 51, for example.
  • the associated Vietnamesespleuel 53 is substantially vertically aligned and connected at its upper end via a hinge 55 with a leg of a rocker arm 57.
  • the rocker arm 57 is rotatably mounted in its middle region via a further rotary joint 59 in the machine frame 41.
  • the second oscillating drive 17 is rotatably arranged, whose Maupleuel 19 extends substantially vertically downwards and there is connected via a hinge 61 directly to the needle bar 7.
  • the drive of the Maupleuels 19 can be done in various ways, in the example shown, this is done via two coupled belt drives 63, 65th
  • the first oscillating drive 13 is again formed similar to the first oscillating drive 13 from the preceding embodiments.
  • the Hauptpleuel 15 is substantially rigidly connected to the needle bar 7.
  • the second oscillating drive 17 is arranged offset in this case above the needle bar 7 and slightly to the rear in the direction of the first oscillating drive 13.
  • the Superpleuel 19 again extends substantially vertically and is connected at its lower end via a rotary joint 67 with a first leg of a tilting bridge 69, which is connected in its central region via a further rotary joint 71 with the needle bar 7.
  • auxiliary connecting rod 73 is connected via a pivot 75 to the rocker arm 69.
  • This auxiliary connecting rod 73 extends substantially vertically upward and is part of another eccentric auxiliary drive 77, which serves to stabilize the system and to raise the needle bar 7 during the return stroke of the first oscillating drive 13.
  • the direction of rotation of the crank disk 21 of the first oscillating drive 13 in opposite directions to the direction of rotation of the crank disk 25 of the second oscillating drive 17, while the eccentric auxiliary drive 77 in turn rotates in the same direction of rotation as the first oscillating drive 13.
  • the stroke of this eccentric auxiliary drive 77 is in magnitude between the strokes of the first oscillating drive 13 and the second oscillating drive 17, and the frequency of the eccentric auxiliary drive 77 corresponds to the frequency of the first oscillating drive thirteenth
  • a first horizontal stroke component (H1) of the center of gravity of the needle bar 7 caused by the first oscillating drive 13 is larger by at least 25%, preferably by at least 50%, more preferably by at least 75%, than a first vertical stroke component caused by the first oscillating drive ( V1) of the center of gravity of the needle bar 7.
  • V1 first vertical stroke component caused by the first oscillating drive
  • the first oscillating drive 13 defines a basic shape of the path of movement of the center of gravity of the needle bar 7, which is similar to a horizontal ellipse 79.
  • a second vertical stroke component (V2) of the center of gravity of the needle bar 7 caused by the second oscillating drive 17 is at least 20%, preferably at least 30%, more preferably at least 40% lower than the first Vertikalhubkomponente (V1) of the center of gravity of the needle bar 7 caused by the first oscillating drive 13.
  • the curved path of the center of gravity of the needle bar 7 is obviously identical to the curved path which is followed by a tip of a needle 11 of the needle board 9 arranged in the region of the center of gravity of the needle bar 7.
  • the dashed line 82 is an exemplary position of the fibrous web.
  • the nonwoven fabric can be transported through the needle machine 1 at a speed of at least 100 m / min, preferably at least 200 m / min, more preferably at least 300 m / min.
  • the stroke speed of the first oscillating drive 13 in the horizontal direction should essentially correspond to the transport speed of the fiber fleece.
  • the needle board 9 preferably has a needle density of at least 10,000 needles per meter board length, preferably at least 15,000 needles per meter board length, more preferably at least 20,000 needles per meter board length. In this industry standard unit is assumed that a width of the needle board of between 250 mm and 400 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
EP13197633.4A 2013-12-17 2013-12-17 Procédé d'entraînement d'une planche à aiguilles dans une aiguilleteuse Not-in-force EP2886694B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP13197633.4A EP2886694B1 (fr) 2013-12-17 2013-12-17 Procédé d'entraînement d'une planche à aiguilles dans une aiguilleteuse
US14/572,304 US9273420B2 (en) 2013-12-17 2014-12-16 Method for actuating a needle bar in a needling machine
CN201410785341.4A CN104711777B (zh) 2013-12-17 2014-12-16 驱动针刺机中的针杆的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13197633.4A EP2886694B1 (fr) 2013-12-17 2013-12-17 Procédé d'entraînement d'une planche à aiguilles dans une aiguilleteuse

Publications (2)

Publication Number Publication Date
EP2886694A1 true EP2886694A1 (fr) 2015-06-24
EP2886694B1 EP2886694B1 (fr) 2016-09-07

Family

ID=49816848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13197633.4A Not-in-force EP2886694B1 (fr) 2013-12-17 2013-12-17 Procédé d'entraînement d'une planche à aiguilles dans une aiguilleteuse

Country Status (3)

Country Link
US (1) US9273420B2 (fr)
EP (1) EP2886694B1 (fr)
CN (1) CN104711777B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450604B1 (fr) * 2017-09-01 2023-08-09 Oskar Dilo Maschinenfabrik KG Procédé de formation d'un produit non tissé, profilé, solidifié
CN111101296A (zh) * 2020-03-03 2020-05-05 桐乡佳车科技股份有限公司 一种高效生产非织造布的方法
EP3896206B1 (fr) * 2020-04-17 2022-12-14 Oskar Dilo Maschinenfabrik KG Aiguilleteuse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1803342A1 (de) * 1968-10-16 1970-05-21 Heuer Otto Nadelmaschine mit Zusatzbewegung
DE19615697A1 (de) 1995-09-15 1997-03-20 Dilo Kg Maschf Oskar Nadelbalkenantrieb einer Nadelmaschine
EP0892102A2 (fr) 1997-07-16 1999-01-20 Oskar Dilo Maschinenfabrik KG Aiguilleteuse
WO2006110575A1 (fr) * 2005-04-08 2006-10-19 Velcro Industries B.V. Aiguilletage de boucles dans des feuilles porteuses
EP1736586A1 (fr) * 2005-06-22 2006-12-27 Asselin-Thibeau Procédé et installation pour aiguilleter une nappe de fibres mettant en oeuvre deux planches à aiguilles

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974393A (en) * 1959-01-08 1961-03-14 Du Pont Apparatus for needle punching sheet materials
US5732453A (en) * 1995-09-15 1998-03-31 Oskar Dilo Maschinenfabrik Kg Needle bar driving apparatus of a needle loom
AT411175B (de) * 2001-07-02 2003-10-27 Fehrer Monika Mag Verfahren zum behandeln eines garnes durch ein nadeln
US20070144129A1 (en) 2005-12-27 2007-06-28 Textron Inc. Magnetically connected coupling assembly
TW200806839A (en) * 2006-05-20 2008-02-01 Saurer Gmbh & Amp Co Kg Apparatus for needling a non-woven web
ATE490360T1 (de) * 2007-06-15 2010-12-15 Oerlikon Textile Gmbh & Co Kg Vorrichtung zum vernadeln einer vliesbahn
ATE525509T1 (de) * 2008-03-03 2011-10-15 Oerlikon Textile Gmbh & Co Kg Vorrichtung zum vernadeln einer faserbahn
US8793848B2 (en) * 2009-09-09 2014-08-05 Hi Tech Textile Holding Gmbh Device for needling a fibrous web
CN101845713A (zh) * 2010-06-02 2010-09-29 江苏省仪征市海润纺织机械有限公司 针刺生产线上针刺机线速度调节装置
EP2673410B1 (fr) * 2011-02-08 2015-03-25 Hi Tech Textile Holding GmbH Procédé et dispositif de consolidation d'une nappe de tissu amenée en continu
CN202705669U (zh) * 2012-07-09 2013-01-30 张毅 一种天然纤维的针刺设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1803342A1 (de) * 1968-10-16 1970-05-21 Heuer Otto Nadelmaschine mit Zusatzbewegung
DE19615697A1 (de) 1995-09-15 1997-03-20 Dilo Kg Maschf Oskar Nadelbalkenantrieb einer Nadelmaschine
EP0892102A2 (fr) 1997-07-16 1999-01-20 Oskar Dilo Maschinenfabrik KG Aiguilleteuse
WO2006110575A1 (fr) * 2005-04-08 2006-10-19 Velcro Industries B.V. Aiguilletage de boucles dans des feuilles porteuses
EP1736586A1 (fr) * 2005-06-22 2006-12-27 Asselin-Thibeau Procédé et installation pour aiguilleter une nappe de fibres mettant en oeuvre deux planches à aiguilles

Also Published As

Publication number Publication date
US9273420B2 (en) 2016-03-01
EP2886694B1 (fr) 2016-09-07
US20150167216A1 (en) 2015-06-18
CN104711777A (zh) 2015-06-17
CN104711777B (zh) 2017-08-22

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