DEVICE TO NEEDLES OF A FLEECE

The invention refers to a device to needles of a fleece with at least a trigger stored in a rack for a needle board and with two parallel, between the rack and the Nadelbretttr more iger planned eccentric cam impulses from two parallel eccentric shafts each f {Jr the needle board drive on the one hand in parting direction and on the other hand in fleece run direction. In order the fleece feed motion too vergrbBern, is it admits (DE 196 15 697 A1), one zus tzlichen needle board drive working in fleece run direction hinund to plan, thus dab the fleece feed motion around the movement component of the needle board in fleece run direction vergr) Bert becomes. This zust tzliche drive for the needle board like the main drive effective in needle parting direction by an eccentric cam impulse is formed, which is linked 0ber piston rod at the needle bar. As a result of an arrangement yon a Parallelf0hrung arises two parallel eccentric shafts for the needle bars, because the piston rods the steering wheels of a joint parallelogram bidden. For stroke control the piston rods on the eccentric shafts 0ber attitude eccentric cam kbnnen to be stored, with whose assistance the Exzentrizit t of the eccentric shafts ge is ndert. One does without a Parallelf0hrung of the needle bar (EP 0,892,102 a2), then the piston rods of the two eccentric shafts kSnnen dutch a ouple to be interconnected, the 0ber a steering wheel at the needle bar attack. With such Ausf0hrung of the eccentric cam impulse for the needle board drive in fleece run direction the needle board feed motion can be stopped in fleece run direction by an appropriate choice of the mutual Winkellage of the two eccentric shafts of the eccentric cam impulse. This simple adjustment possibility of the needle board drive in fleece run direction muB however with the disadvantage to be bought, dab the needle board one linked at the piston rods of the eccentric cam impulse for the needle board drive in parting direction hinund working lagging with the disadvantage ausfehrt, dal the lagging of the needles w due to it hrend the needle interference a Vergr6Berung of the Einstichlt - more cher in the fleece to cause. Apart from the fact for 0ber piston rod at eccentric cam impulses linked Nadelbretttr results more ger a substantial construction expenditure. The invention is thus the basis the task to out-arrange a device to needles of a fleece of the initially described kind so dab on the one hand a simple construction for a needle board drive both in parting direction and in fleece run direction erm0glicht and on the other hand favourable conditions for a favourable attitude of the needle board feed motion in fleece run direction will be created, without the needle board swivel to mCissen. The invention Ibst the task posed thereby, dab between the Nadelbretttr more ger and the rack a Zwischentr more ger intended is and dab the Zwischentr more ger against-upper the rack and the Nadelbretttr of ger gegen0ber the Zwischentr of ger 0ber the two on the one hand between the rack and the Zwischentr more ger and on the other hand between the Zwischentr more ger and the Nadelbretttr more ger arranged Exentertriebe in circular paths is gefQhrt. Since according to these MaBnahmen of the Zwischentrager is directly on the Exzemem of the I=xzenterwellen of the eccentric cam impulse stored in the rack stored and the eccentric shafts of the other eccentric cam impulse tract, on whose eccentric cams of the Nadelbretttr stores more ger directly, one results in the comparison mJt eccentric cam impulses, which affect 0ber piston rod more ger the Nadelbretttr, a construction simplification with the effect, dab both eccentric cam impulses the movement of the Nadelbretttr lgers both in parting direction and in fleece run direction affects. Thus for example of a 0bereJnstimmenden Exzentrizit lifts themselves lt and one around 180° against each other shifted dead center situation of the two eccentric cam impulses toward the regarded stroke direction their H0be up, w hrend with a 0bereinstimmenden Winkellage of the eccentric cam impulses a total stroke according to the sum of the two Einzelh0be arises on the assumption. If the two eccentric cam impulses are against-intimately propelled, then beJ a 0bereinstimmenden against-intimate H0be in feed direction, which propels itself 8ufheben, thus dal the needle board ausschlieBlich in parting direction hinund working, results dead center situation in parting direction. By a vote of the mutual WJnkellagen, the Exzentrizit ten and the directions of rotation of the eccentric cam impulses thus for the needle board Antdebsbedingungen can be created, both regarding the parting movement and the feed motion in fleece run direction the respective requirements favourably gen0gen. To comes since for the vote of the needle board drive to different Vorsch0be in 2 RKs Vliesdurchlaufdchtung the mutual Winkellage of the eccentric cam impulses 410,554 B is to be only stopped. The 0bereinstimmende Winkellage of the two eccentric shafts of each eccentric cam impulse secures thereby a movement of the needle board parallel to itself along a closed orbit, for dal3 lagging of the needle board to be thus excluded can, although in Sonderf lllen the needle board also a lagging be berlagert can. In the design the invention article is for example represented. Fig show. 1 one invention in accordance with l e device to needles of a fleece in a schematic, partially broken side view and Fig. 2 this device after a cut of the line I1-11 of the Fig. 1 in one grSl eren mark - staff. The represented device to needles of a fleece exhibits a pass document 1 to the F0hrung of a fleece 2, which is towards-ennobled with the help of the needles 3 of a needle board 4. In its distance a gegen0ber of the pass document 1 adjustable stripper 5 prevents thereby since the Vies 2 is taken off when taking the needles 3 of that off pass document. The needle board 4 held in a trigger 6 is propelled by two eccentric cam impulses 7 and 8, which exhibit in each case two eccentric shafts 9 and/or 10. W are hrend the eccentric shafts 9 of the eccentric cam impulse 7 in bearing consoles 11 of a rack 12 stored, store the eccentric shafts 10 of the eccentric cam impulse 8 in a Zwischentr more ger 13, which is stored even on the eccentric cams 14 of the eccentric shafts 9. According to the storage of the Zwischentr gers 13 on the eccentric shafts 9 the Nadelbretttrager 6 on the eccentric cams 15 of the eccentric shafts 10 is stored, 0ber camp cheeks 16, which are put on to 6 on the Nadelbretttr more ger. The drive of the eccentric shafts 9 and 10 preferably takes place 0ber in their mutual Winkellage controllable engines. W hrend the drive connection to the stationarily stored eccentric shafts 9 no difficulties makes, mul for the drive of the eccentric shafts 10 the movement of the Zwischentr gers for 13 along one by the eccentric cams 14 of the eccentric cam impulse 7 determined circular path ber0cksichtigt becomes. Because of the given circular path for the drive of the eccentric cam impulse 8 an epicyclic transmission with an interior gear rim co-ordinated with the circular path the eccentric cam 14 presents itself. Since the movements of the two eccentric cam impulses, the Nadelbretttr knows 7 and 8 0berlagern more ger 6 with given Exzentrizit ten itself the eccentric cam 14 and 15 of the eccentric shafts 9 and by an appropriate choice of the mutual Winkellage of the eccentric cams 14 the eccentric cams 15, in particular regarding a needle board feed motion in fleece run direction 17 angepal t ltnisse to different Verh become more gegenQber. Zus the ltzliche movement component of the needle board 4 in fleece run direction 17 is with the training that depressing drinking now gene 18 flat steel bars r the needles 3 in the pass document 1 and in the stripper 5 in the form of long punches to ber0cksichtigen. The invention is amplifier ndlich not on the represented Ausf0hrungsbeispiel beschr nkt, to the better 0bersicht only the reason the tzlichen drive conditions for the needle board trigger 6 shows and for the balancer necessary Mar took to often I ll t.