Abstract: A textile machine comprising a main shaft (10) to be driven in rotation, and a sensor (20) to detect at least one angular position (PA) of said shaft and generate a corresponding reference signal (SR); the machine (1) further comprises weaving members (30) to make a textile product (30), at least one beam (50) on which a yarn (60, 61, 63, 64) to be fed to the weaving members (30) for manufacture of the textile product (40) is wound, and an actuator to drive the beam (50) in rotation and unwind the yarn (60, 61, 63, 64). The machine (1) further comprises a controller connected to the sensor (20) and an actuator depending on the reference signal (SR).

Abstract: A needle loom is provided with a bearing structure (2), one textile-product (P) forming head (3) installed on the bearing structure (2), two heddle frames (6) capable of intercepting a plurality of warp threads (O), one sickle (9) to bring the two weft threads (T) transversely between the warp threads (O), two movable guides (11) each of which is adapted to intercept one of the weft threads (T), actuators (13) to shift the movable guides (11) and change the weft threads (T) carried by the sickle (9), one needle (18) to temporarily retain at least one of the two weft threads (T) carried by the sickle (9), and a reed (20) to compact the weft threads (T) against the already formed textile product (P). Two electric motors (21), each of which is connected to a respective guide (11) actively move the respective guide (11) in a first way (X) or in a second way (Y) along the predetermined direction (D), upon command of the respective motor (21).

Abstract: A crochet galloon machine for warp knitting comprises a front grooved bar (4), a plurality of needles (5) disposed consecutively in side by side relationship along the front grooved bar (4) and movable with a reciprocating motion along a first direction (A), a plurality of eye-pointed needles (8) disposed in front of the needles (5), a plurality of threading tubes (10) disposed above the needles (5). An assembly of interacting levers imparts movement both to the needles 5 and the front grooved bar 4 and is adapted to give the latter an alternated motion component along a second direction (B) substantially parallel to the first motion direction (A), so as to accompany movement of the needles (5) in their longitudinal reciprocating motion and avoid very long needles (5), subject to bending vibrations, to be adopted.

Abstract: A needle loom comprises a supporting structure (2), at least one forming head (3) of a textile product (P) installed on the supporting structure (2), at least two heddle frames (6) capable of intercepting a plurality of warp threads (O), at least one sickle (9) to bring at least two weft threads (T) transversely between the warp threads (O), at least two movable guides (11) adapted each to intercept one of the weft threads (T), actuator means (13) to move the movable guides (11) and change the weft threads (T) carried by the sickle (9), at least one needle (18), to temporarily retain at least one of said at least two weft threads (T) carried by the sickle (9), and a reed (20) to compact the weft threads (T) against the already formed textile product. The actuator means (13) comprises at least two electric motors (21), connected each with a respective movable guide (11), to move each guide in a manner independent of the others.

Abstract: A textile machine comprising at least one frame (2) supporting a plurality of healds (3), a sickle (6), a needle (8), a compacting device (201) and a main shaft (12) for a synchronized movement of the frames (2), sickle (6), needle (8) and compacting device (201) and manufacture of a textile product (5); the machine (1) further comprises a first feeding member (20) to supply a plurality of warp yarns (18) to said healds, a second feeding member (40) to supply at least one weft yarn (19) to said sickle and a take-down member (60) of said textile product (5). The machine (1) is also provided with a control apparatus (80) comprising at least one first electromechanical actuator (30) operatively active on said first or second feeding member (20, 40) or on said take-down member (60) for movement of the same, and a controller (90) for regulation of at least said first actuator (30).

Abstract: A textile machine comprising a needle bar (6) carrying a plurality of needles (7), a guide bar (8) carrying a plurality of eye-pointed needles (9) and at least one carrier slide bar (10) carrying a plurality of threading tubes (11); the machine (1) further comprises a main shaft (12) for a synchronised movement of the bars (6, 7, 8) and manufacture of a textile product (5), a first feeding member (20) to feed at least one weft yarn (19) to said threading tubes (11), a second feeding member (40) to feed a plurality of warp yarns (18) to said eye-pointed needles (9) and a take-down member (60) to draw said textile product (5). The machine (1) is also provided with a control apparatus (80) comprising at least one first electromechanical actuator (30), operatively active on said first or second feeding members (20, 40) or on said take-down member (60) for movement of same and a controller (90) for regulation of at least said first actuator (30).

Abstract: A control device for textile machines, in particular for crochet machines, comprising an electric motor (10) having an output shaft (11) drivable in rotation and a first reduction gear (12) interposed between the output shaft (11) and a knitting member (13) of a textile machine. The device (1) further comprises drive means (14) to power and control the motor (10), and detecting means (15) to detect a main parameter (100) representative of a position of the knitting member (13) and to generate a corresponding main signal (110); said main signal incorporates the main parameter (100) and is destined to the drive means (14) regulating power supply to the motor (10) depending on the main parameter (100).

Abstract: A device for obtaining festoons mounted on crochet machines for warp weaving comprises a curling hook engaged on a respective hook-holder block, a first motor, a second motor and a programmable electronic regulating unit. The first motor is operatively engaged to the curling hook and the second motor is operatively engaged to the hook holder block. The electronic unit activates the second motor to translate the hook and activates the first motor to curl the woof thread engaged on the hook itself by rotating the latter. The electronic unit, the positioning of the hook in the ending position and the rotation of the hook according to the distance assumed with respect to the needles of the machine. The electronic unit controls in synchronism to the motors, also, a cop-holder bar to produce a festoon having twisted threads of variable length.

Abstract: In a crochet machine for warp knitting, the longitudinal movement of the carrier slide bars is controlled by a plurality of brushless motors each of which incorporates into its structure, a transducer of the angular position of the output shaft and a converter for managing operation of the motor itself based on instructions received from a programmable electronic control unit supervising operation of the whole knitting machine.

Abstract: It is described a process for manufacturing in crochet galloon machines, ribbons of synthetic fabric provided with flexible hooks for quick-closing devices of the tear type, which process comprises a previous step of knitting a ribbon in which successive sequences of loops are formed. The ribbon is then submitted to a heat treatment adapted to substantially stiffen said loops previously shaped in an angle-bent conformation. Then a cutting operation is carried out on the stiffened loops so as to obtain one hook from each of them.A crochet galloon machine is also provided for forming said ribbons of synthetic fabric, said machine comprising a plurality of shaping elements adapted to form successive sequences of loops with the weft threads, a heat-treatment unit for setting the geometric shape of the loops, and a cutting device intended for cutting off the stiffened loops so as to obtain one hook from each of them.

Abstract: Installed on a crochet galloon machine is a device (1) for inserting alternately-interposed wefts, comprising two weft-inserting sliders (10, 16) carrying respective threading tubes (11, 17) each adapted to lay down a weft yarn (12, 18) to be interlooped in the article of manufacture (M) being worked. Each slider (10, 16) is movable along a respective weft-inserting guide (9, 15). The cyclic movements of the sliders (10, 16) are mutually offset according to a cycle fraction equal to the number of the provided weft-inserting bars (9, 15), so as to alternate laying down of each weft yarn (10, 18) with each chain stitch (6b)-formation cycle.

Abstract: In a crochet machine for warp knitting workings, the vertical oscillations usually imparted to the threading tubes (17) and the eye-pointed needles (11) are replaced by a vertical oscillation imparted to the needles (6) through the needle bar (4). Said needle bar has respective opposite ends fastened to driving arms (8) operated by horizontal-movement means (7) of the needles and in engagement with oscillating supports (26) driven with a vertical reciprocating motion. An idler roller (37) extending between the oscillating supports (26) deviates the article of manufacture (5) coming from the needle bar (4) in a horizontal direction, before the article of manufacture reaches a roller drag unit (35).

Abstract: Thread guide rail for crochet galloon machines exhibiting a rectangular cross section 2 on the major base of which is obtained an inclined flat 3 provided with a longitudinal groove 4 extending over the whole length of the rail. The rail, on the surface opposite said inclined flat, comprises two series of opposite transverse grooves 7a, 8a disposed in alignment with each other and between which a central recessed portion 9 is defined which extends longitudinally over the whole length of the rail. The rail can be associated with a number of thread guide elements 10, exhibiting each a rectilinear portion 12 adapted to engage into two aligned transverse grooves, followed by a U-shaped portion 11 engageable on either side of the rail through the engagement of a fitting projection 14 provided thereon, into the longitudinal groove 14. Seen in section the transverse grooves exhibit a profile adapted to mate with that of the corresponding section of the rectilinear portion.

Abstract: Twisted beard needle for crochet frames raschel chain and similar products comprising a rectangular stem, a heel on one end of the stem and a beard with the needle point of the beard bent towards the heel on the other end of the stem in a direction displaced on the side with respect to the longitudinal axis of the needle and in repose being positioned within the cross section of the rectangular stem, the portion of the beard bent towards the heel consisting of two segments inclined upwardly to a point extending above the cross section of the rectangular stem to form an obstacle to the loop which slides on the beard so that the loop is obliged to slack its sliding and to widen to overcome the above-mentioned obstacle constituted by the point, said widening determining the recovery of the thread from the stitch previously formed to thereby tighten more the stitch.