摘要:
This weft insertion system includes at least one rapier (6, 8) provided with weft yarn clamping means (622, 822) for drawing a weft yarn (202) and a reed (2) provided with dents (22) made of a magnetic material. The rapier (6,8) is equipped with magnetic means for exerting an attractive magnetic effort (E, E') between this rapier and the dents of the reed. The reed (2) advantageously has a variable magnetic permeability along its longitudinal axis (X2). The rapier (6, 8) has a lateral face (8262) oriented towards the reed (2) and the magnetic means have a direction of polarization perpendicular to the direction of travel (X6, X8) of the rapier and secant with this surface (8262).
摘要:
Die Erfindung betrifft ein Webblatt für Webmaschinen mit mechanisch angetriebenen Schußfadeneintragsorganen. Die Aufgabe der Erfindung besteht darin, Vorkehrungen im Webblatt zu treffen, die zusammen mit Vorkehrungen sowohl am Bringer- als auch am Nehmergreifer eine gegenüber dem Stand der Technik verbesserte Greiferführung ermöglicht. Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß die einzelnen Webblattlamellen (6) zwischen dem ersten und dem zweiten Webblattbund (1a,1b) wenigstens eine ein Profil bildende Ausnehmung (6d) aufweisen und daß mit der Ausnehmung temporär ein Greiferführungselement (13) in Verbindung steht.
摘要:
The actuator assembly comprises essentially a gear pair (2, 3), whereof one gear (2) is driven rotatively by the loom own crankshaft and the other (3) caused to mesh with the former, being driven thereby to follow a substantially epicycloidal path around it. Rigidly attached to the lattergear(3) is a washer (7) with which a first connecting rod element (13) engages which is connectedto a rod linkage (16) having a bow divider-like configuration, and has a second connecting rod element (51) articulated thereto which reciprocates the picker head actuating carriage, thereby the picker head is caused to pass through the shed to engage with the weft wire and pull, by a substantially constantly applied tension, the weft through the shed, and is held back for an adjustably preset time period prior to completing another stroke. Thus the picker head can be moved with a very high speed and in perfectly timed relationship with the motion of the loom sley thereby providing a wire cloth of optimum characteristics.
摘要:
Die Erfindung betrifft ein Webblatt für Webmaschinen mit mechanisch angetriebenen Schußfadeneintragsorganen. Die Aufgabe der Erfindung besteht darin, Vorkehrungen im Webblatt zu treffen, die zusammen mit Vorkehrungen sowohl am Bringer- als auch am Nehmergreifer eine gegenüber dem Stand der Technik verbesserte Greiferführung ermöglicht. Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß die einzelnen Webblattlamellen (6) zwischen dem ersten und dem zweiten Webblattbund (1a,1b) wenigstens eine ein Profil bildende Ausnehmung (6d) aufweisen und daß mit der Ausnehmung temporär ein Greiferführungselement (13) in Verbindung steht.
摘要:
The invention relates to a loom, comprising a device for opening sheds between adjacent warp threads, a weft-insertion device for inserting at least one weft thread into all opened sheds by means of at least one projectile (4), which pulls a weft thread, a reed (5) having a plurality of reed dents for beating up the inserted weft thread (8), and a belt drive having a belt (2) guided around two pulleys (1), of which belt at least one belt region (2a) extending linearly between the pulleys (1) is arranged below the reed (5) in such a way that said at least one belt region extends in the insertion direction of the at least one weft thread (8), wherein the projectile (4), which comprises at least one permanent magnet or at least one magnetizable body (12), can be pulled through the sheds across horizontally oriented reed dent regions under magnetic attraction by means of at least one permanent magnet (3) guided by the belt (2), wherein a ramp (6a) is arranged before the reed (5) in the weft insertion direction, by means of which ramp a projectile (4) carried on the belt (2) in a contacting manner can be lifted off the belt (2) and raised to the height of the horizontally oriented reed dents against the magnetic attraction force during the motion of the projectile in the direction of the reed (5), and a ramp (6b) is arranged after the reed (5), by means of which ramp the projectile (4) can be led back onto the belt (2). The invention further relates to a method for operating a loom.
摘要:
The present invention relates to a driving device, comprising at least one body (4), (11) which may be put in an alternating rotary motion by the rotation of at least one cam (3A), (3B); (16A), (16B), the said body (4), (11) being provided to be rotatable on a shaft (1), which itself is provided to perform a continuous rotary motion. The said body (4), (11) may be mounted on bearings on the drive shaft (1) or on a shaft that may be driven by the drive shaft (1). Because of the continuous rotation of the said shaft (1), the bearings of this body will be subjected to a uniform load along their circumference and consequently will be likewise subjected to a uniform wear. This will enhance the life span of the bearing. Because of which the driving device will operate more precisely and it may be carried out in a more compact form. This invention likewise relates to a machine provided with such a driving device, more particularly to a textile machine.