摘要:
A selvage device (1) includes two supporters (20, 21) whose movements are restricted to a selvage-shedding direction and having thread guides (32) for guiding selvage threads (3), a driving motor (33) that is rotated in forward and reverse directions, and a motion-converting mechanism converting the rotation of the driving motor to reciprocating motions for the supporters. The motion-converting mechanism includes a first gear (35) attached to an output shaft (34) of the driving motor, a second gear (36) meshed with the first gear and having a first pivotal connecting section (53A) at a position distant from a center of rotation (36a) of the second gear in a radial direction thereof, a second pivotal connecting section (53B) which is provided in one of the first gear and a third gear (37) directly meshed or indirectly linked with the first gear and is positioned distant from a center of rotation (35a, 37a) of the first gear or the third gear in a radial direction thereof, and linking rods (51A, 51B) respectively provided for the two supporters, the linking rods having first ends respectively connected to the first pivotal connecting section and the second pivotal connecting section and second ends connected to the corresponding supporters.
摘要:
An angular servo-motor for the controlled positioning of elements connected to weft or warp yarns, in a weaving machine, essentially comprising a position control angular motor, with direct current sent to a "brushless" rotor (1), the latter connected to a sequence of elements consisting of cables (5) and small heddle-carrier looms (10, 11); the servo-motor in question is capable of conferring an alternating motion to the aforesaid small heddle-carrier looms (10, 11), such to obtain the desired weaves between the weft and warp yarns.
摘要:
Warp yarn weaving device in a weaving loom, for selvedge formation or for leno heald weave at a cloth edge, wherein two small heald assemblies (1), integral with respective mutually parallel posts (2) having alternate and symmetrical rectilinear movement, control the position of two corresponding assemblies of said warp yarns. The motion is imparted to said posts (2) by an electric motor (3) having alternate rotational motions and apt to directly control in an alternate and symmetrical rectilinear motion a pair of driving rods (4) which are parallel to the posts (2) and connected thereto with no longitudinal play.
摘要:
A selvage device (1) includes two supporters (20, 21) whose movements are restricted to a selvage-shedding direction and having thread guides (32) for guiding selvage threads (3), a driving motor (33) that is rotated in forward and reverse directions, and a motion-converting mechanism converting the rotation of the driving motor to reciprocating motions for the supporters. The motion-converting mechanism includes a first gear (35) attached to an output shaft (34) of the driving motor, a second gear (36) meshed with the first gear and having a first pivotal connecting section (53A) at a position distant from a center of rotation (36a) of the second gear in a radial direction thereof, a second pivotal connecting section (53B) which is provided in one of the first gear and a third gear (37) directly meshed or indirectly linked with the first gear and is positioned distant from a center of rotation (35a, 37a) of the first gear or the third gear in a radial direction thereof, and linking rods (51A, 51B) respectively provided for the two supporters, the linking rods having first ends respectively connected to the first pivotal connecting section and the second pivotal connecting section and second ends connected to the corresponding supporters.
摘要:
Device for the drive of an edge thread mechanism in weaving machines, whereby the edge thread mechanism (3) consists of at least two parts (4,5) which make opposite movements (A,B), characterized in that it mainly consists of a drive element (9); a connecting element (10) which is moved to and fro by the drive element (9); and a coupling mechanism (11) between the above-mentioned connecting element (10) and the above-mentioned parts (4,5) of the edge thread mechanism (3) which allows to drive these parts (4,5) with opposite movements (A,B), whereby this coupling mechanism (11) consists of at least two levers (16,17) which are coupled at their first ends (18,19) to the connecting element (10) and at their second ends (20,21) to a part (4,5) of the edge thread mechanism (3).
摘要:
The present invention provides an actuator (10) for a shed-forming device for a weaving machine, the actuator (10) being arrangeable for moving at least one warp thread (1), the actuator (10) comprising an artificial muscle (11) having an input for receiving an actuation signal (12), the configuration of the artificial muscle (11) being variable in response to the actuation signal (12) in order to move the at least one warp thread (1). The use of an artificial muscle (11) as an actuator (10) has the benefit of a fast response when a change in configuration is required, reduced power requirements when compared to conventional actuators based on electric motors, compactness, robustness, reduced noise during operation and reduced cost to manufacture.
摘要:
A false selvedge forming device in looms is described, of the type comprising a drive shaft performing an alternating rotational movement and a pair of arrays of heddles, for moving warp yarns, connected by means of respective transmission means to said rive shaft for an opposing alternating movement, said transmission means being in the form of a pair of bundles of cords, on the one hand connected to the upper ends of said heddles and on the other hand converging towards two opposite points of a rotating member integral with said actuating shaft, the bottom ends of the heddles being retained by tensioning means.
摘要:
Loom comprising an apparatus (1) for feeding weft threads, means for feeding warp threads, a reed (2), a first set of heddles (3) upstream of said reed (2), and means (4, 5) for the removal of the weft threads and the transfer thereof from one side to the other of the loom across the warp, characterized in that it comprises a second set of heddles (6) disposed between the reed (2) and the first heddles (3).