Abstract: A circular hosiery knitting machine of the seamless type, comprising a supporting structure and a needle cylinder provided with a plurality of axial slots, each of which accommodates a needle which can be actuated with a reciprocating motion along the corresponding axial slot; a sinker ring being arranged around the upper end of the needle cylinder being provided with a plurality of radial slots, each of which accommodates a sinker, which can move with a reciprocating motion along the corresponding radial slot, each sinker being provided with a heel which protrudes upward from the corresponding radial slot and can engage at least one path defined in a sinker cover which faces in an upper region the sinker ring, the needle cylinder being actuatable with a rotary motion about its own axis with respect to the supporting structure and to the sinker cover.

Abstract: A single cylinder circular knitting machine (1) for men's socks with needles on the dial, comprises a dial provided with a plurality of radial beams (146) which form radial seats (16) for the sliding of the dial needles (18). The beam (146) has a discharge groove (154) on the working side (148a), which the transfer spring (186) of the dial needle faces, which limits the raising of the needle.

Abstract: A double-cylinder circular machine, particularly for knitting hosiery items, with simplified actuation mechanism, comprising a supporting structure which comprises a footing, which supports a lower needle cylinder, and a column which extends substantially vertically, protrudes upwardly from the footing and supports an upper needle cylinder, which is arranged above and coaxially with respect to the lower needle cylinder, and further comprising elements for the actuation of the lower needle cylinder and of the upper needle cylinder with a rotary motion about a common axis, the actuation elements comprising an electric motor which is connected kinematically to the lower needle cylinder and to the upper needle cylinder and is accommodated inside the column.

Abstract: A knitting machine comprising a needle holder, which supports a plurality of needles which can be actuated with an alternating motion along their axis and means for guiding the needles on the needle holder which comprise channels for forming knitting which are defined proximate to the end of the needle holder and sliding channels which are defined on the needle holder in a region that is spaced from the end of the needle holder, each one of the channels for forming knitting being engageable by a needle and defining with its inlet, which is directed toward the outside of the needle holder, resting contact regions for the knitting during the retracting motion of the needles, the number of the sliding channels being smaller than the number of the channels for forming knitting.

Abstract: A circular knitting machine for men's socks comprises a cylinder, cylinder needles, movement devices of the cylinder needles, sinkers (12), movement devices of the sinkers, a dial (14), a dial shaft, dial needles (18) mechanisms for moving the dial needles, selector mechanism able to selectively move the dial needles, a yarn-finger, dial needle selector mechanisms. The dial needle selector mechanisms comprise selector rods (30) limited in both directions radially to the respective dial needles.

Abstract: A device for takedown of the article being formed, for circular knitting machines, comprising at least one takedown roller, which is supported, so that it can rotate about its own axis, by a supporting structure and can engage, by means of its lateral surface, the article to be taken down. There are reloading means, which operate on a motor element to cause its rotation about a main axis in a second direction of rotation that is opposite to the first direction of rotation. The reloading means comprise a fluid-operated reloading cylinder, which is supported by the supporting structure and operates with the stem of its piston on the motor element with a reloading force that is oriented along a direction spaced from the main axis for applying to the motor element a reloading torque that is oriented concordantly with the second direction of rotation.

Abstract: A jacquard thread-guide bar (2) for warp knitting textile machines, comprising a supporting body (7) provided with a plurality of housing seats (5) configured and arranged so as to engage each removably a mounting body (6) of a single piezoelectric actuator (3) and to carry out an individual removable mounting of the single piezoelectric actuator (3) onto said supporting body (7), the housing seats (5) extending perpendicularly to the main longitudinal extension of the bar (2) and being configured and arranged so as to guide the sliding of the mounting body (6) between a mounting position and a disengaged position.

Abstract: A circular knitting machine for men's socks comprises a cylinder, cylinder needles, movement devices of the cylinder needles, sinkers (12), movement devices of the sinkers, a dial (14), a dial shaft, dial needles (18) mechanisms for moving the dial needles, selector mechanism able to selectively move the dial needles, a yarn-finger, dial needle selector mechanisms. The dial needle selector mechanisms comprise selector rods (30) limited in both directions radially to the respective dial needles.

Abstract: A device for takedown of the article being formed, for circular knitting machines, comprising at least one takedown roller, which is supported, so that it can rotate about its own axis, by a supporting structure and can engage, by means of its lateral surface, the article to be taken down. There are reloading means, which operate on a motor element to cause its rotation about a main axis in a second direction of rotation that is opposite to the first direction of rotation. The reloading means comprise a fluid-operated reloading cylinder, which is supported by the supporting structure and operates with the stem of its piston on the motor element with a reloading force that is oriented along a direction spaced from the main axis for applying to the motor element a reloading torque that is oriented concordantly with the second direction of rotation.

Abstract: A pick-up device for picking up a tubular knitted article from a circular knitting machine for hosiery and for transferring the article to a unit adapted to perform additional work thereon. The device comprises an annular pick-up body that supports pick-up members that can slide with respect to the pick-up body along radial directions. The pick-up body can be arranged coaxially around the needle cylinder of a circular knitting machine for hosiery so that each one of the pick-up members faces laterally a needle of the machine. The end of each one of the pick-up members that is directed toward the axis of the pick-up body has a seat that can engage a region of the stem of the needle that is arranged proximate to the latch of the needle on the opposite side with respect to the head of the needle.

Abstract: A jacquard thread-guide bar (2) for warp knitting textile machines, comprising a supporting body (7) provided with a plurality of housing seats (5) configured and arranged so as to engage each removably a mounting body (6) of a single piezoelectric actuator (3) and to carry out an individual removable mounting of the single piezoelectric actuator (3) onto said supporting body (7), the housing seats (5) extending perpendicularly to the main longitudinal extension of the bar (2) and being configured and arranged so as to guide the sliding of the mounting body (6) between a mounting position and a disengaged position.

Abstract: A sinkerless knitting machine with latch needles, comprising a needle holder with a plurality of slots on one face, each slot accommodating a needle. Knitting retainers are provided, each with a body composed of at least two side-by-side interconnected laminar elements. At least two laminar elements of each knitting retainer are arranged in a same or in two contiguous slots of the needle holder. At least one of the laminar elements composing a knitting retainer has a retention portion defining a stop shoulder for the knitting. Each knitting retainer can move on command from a first position, in which it does not interfere with the knitting being formed, to a second position, in which it is inserted, with the retention portion, between two contiguous needles, in a region which faces the knitting forming plane, in order to retain the portion of knitting that lies between two contiguous needles.

Abstract: A jacquard thread-guide bar (2) for warp knitting textile machines, comprising a supporting body (7) provided with a plurality of housing seats (5) configured and arranged so as to engage each removably a mounting body (6) of a single piezoelectric actuator (3) and to carry out an individual removable mounting of the single piezoelectric actuator (3) onto said supporting body (7), the housing seats (5) extending perpendicularly to the main longitudinal extension of the bar (2) and being configured and arranged so as to guide the sliding of the mounting body (6) between a mounting position and a disengaged position.

Abstract: A turning device for tubular knitted articles, particularly for sewing or looping stations for the automated closing of tubular articles at an axial end thereof comprising a lower portion and an upper portion, which are arranged respectively below and above an intermediate region at which elements are or can be positioned for supporting the tubular article to be turned, which hangs at one of its axial ends and is arranged substantially vertically, a tubular body, which can be inserted from the bottom upwardly, with its upper axial end, through the axial end of the article that hangs from the supporting elements, so as to evert the article onto the outer lateral surface of the tubular body, extracting it progressively from the upper axial end of the tubular body.

Abstract: A warp-knitting machine (1) comprising a unitary supporting structure (2), at least one needle bed (3) mounted on the unitary supporting structure (2), at least one thread-guide bar (4) for feeding yarn to the needle bed (3), mounted on the unitary supporting structure (2), a yarn feeding device (5) to the thread-guide bar (4) and to the needle bed (3); and electric and electronic devices (6) for the operation of the warp-knitting machine (1), the electric and electronic devices comprising at least main electronic devices (8) for the operation of the warp-knitting machine (1), the main electronic devices (8) comprising at least the power electronic devices and/or the servodrives for piloting the motors of the machine (1) and being mounted on the unitary supporting structure (2).

Abstract: A method and an apparatus for closing a tubular knitted article at one of its axial ends, at the end of its production cycle on a circular knitting machine for hosiery or the like. The method consists in ending the production of an article at one of its axial ends. The article is then picked up from the machine and transferred to a handling device located in a sewing or looping station. The pick-up is performed by transferring individually the loops of the last row of knitting from the needles of the machine to spikes of the handling device, which has an annular body composed of two semiannular elements. The article is then turned, and one of the two semiannular elements is turned over with respect to the other one, so that the spikes of one semiannular element face, and are aligned with, the spikes of the other semiannular element.

Abstract: A machine, and a related method, for automatically transferring tubular items for manufacturing men's socks, comprising a station (S1) for loading automatically the tubular items (1) arranged on a longitudinal axis thereof, a station (S2) for positioning the items in a direction parallel to the longitudinal axis thereof, a station (S3) for orienting angularly the items with respect to a rotation axis parallel to the longitudinal axis thereof, and a station (S4) for transferring along a transfer line (T) the oriented items, the transfer station comprising a first and a second leader for aligning a portion of the tubular items (1), in which the leaders are arranged one after the other along the transfer line (T) and are separated by a non-controlled section of said line, for correcting in the second leader possible errors of insertion of the item into said first leader.

Abstract: A piezoelectric actuator for jacquard thread-guide bars for warp-knitting textile machines, comprising a mounting body (6) singularly dedicated to the piezoelectric actuator (3) and onto which one piezoelectric body (8) is mounted, said piezoelectric body (8), a plurality of interface electric contacts (9) operatively connected to the piezoelectric body (8), and a connecting portion (10) apt to interface with a thread-guide portion, the mounting body (6) being configured and predisposed for being able to be removably engaged into a housing seat (5) of a supporting body (7) of a jacquard bar and to carry out an individual and removable mounting of the actuator onto the supporting body (7).

Abstract: A sewing or looping head, particularly for the automated closing of tubular knitted articles at one of their axial ends comprising a pair of sewing elements, which can move along corresponding actuation paths and cooperate with each other in forming a sewing chain stitch, and a cutting element, which can be actuated to cut the sewing chain stitch; in the sewing or looping head, the cutting element can engage the sewing chain stitch proximate to the crossing point of the paths of the pair of sewing elements or the point where the sewing chain stitch is formed, so as to minimize the length of the sewing chain stitch that exceeds the length needed to sew or loop the article and so as to reduce the time required to perform the sewing or looping operation.

Abstract: A connection device (4) for piezoelectric actuators (3) of jacquard bars for textile machines, comprising a bearing body (32), a plurality of interconnection elements (34) inserted into the bearing body (32), which can be removably connected to a corresponding plurality of interface electric contacts (9) of a plurality of piezoelectric actuators (3), at least one interconnection terminal (33) for the interconnection elements (34) with control means of a textile machine, and at least one fastening portion (35) configured and arranged so as to removably mount the bearing body (32) onto a supporting body (7) of a jacquard thread-guide bar (2).