Abstract: A method for knitting manufactured articles with circular knitting machines with high-fineness consisting in that at least one region of the manufacture is produced with a group of contiguous needles by reducing at least once the number of active needles of the group of needles by transferring the last loop of knitting formed by certain needles of the group of needles to contiguous needles of the group of needles and excluding from knitting the needles that have transferred the loop of knitting during the formation of at least one portion of a subsequent row of knitting by the needles that are kept active. The manufacture region is produced by providing in succession portions of rows of knitting obtained by actuating the needle cylinder with a two direction rotary motion.

Abstract: A circular knitting machine for hosiery or the like, comprises at least one needle cylinder with vertical axis and has, on its lateral surface, a plurality of axial slots, each of which accommodates a needle and an element for actuating the needle. The actuation element comprises at least one connecting element and a selector. The connecting element is provided with a radially actuatable movable heel, and the selector protrudes with a portion between the bottom of the axial slot and the connecting element in any operative position of the machine. The selector is oscillatable on a radial plane of the needle cylinder to produce oscillation of the connecting element and extract its movable heel from the axial slot to achieve engagement with connecting element actuation cams facing the lateral surface of the needle cylinder.

Abstract: A needle for transferring stitches therefrom to adjacent needles for hosiery knitting machines comprises a shank, a head, arranged at a longitudinal end, or upper end, of the shank, and a latch which is pivoted to the shank proximate to the head, about a pivoting axis which is substantially perpendicular to the longitudinal axis of the shank and can rotate about the pivoting axis in order to open or close the head. The needle comprises at least one elastically flexible lamina, which is associated with the shank and forms, on the two opposite sides of the shank, below the latch, two receptacles, one for each side of the shank. The head of an adjacent needle can be inserted in each of the receptacles, in order to transfer the loop of knitting, from the needle being considered to the adjacent needle.

Abstract: A circular knitting machine for hosiery or the like, comprising a needle cylinder with vertical axis and multiple axial surface slots, each of which accommodates a needle and an actuation element for the needle. The actuation element comprises at least one connecting element. The connecting element is provided with a radially extractable movable heel, that engages connecting element actuation cams facing the lateral surface of the needle cylinder. The cams comprise at least one extraction cam or one retraction cam, which has a portion whose profile is inclined with respect to an ideal plane perpendicular to the axis of the needle cylinder. The machine comprises extraction means causing extraction of the movable heel and keeping thereof in extracted position over the entire extension of the portion having an inclined profile of the extraction cam or of the retraction cam.

Abstract: A device for feeding yarns for knitting machines comprising a supporting element arranged on the inner side of the machine bed which supports a set of yarn guides arranged side-by-side. Each of the yarn guides has a passage for at least one yarn to be fed to the needles of the machine arranged in the bed and the supporting element, for each of the yarn guides, supports an element for clamping and cutting the yarn dispensed by the corresponding yarn guide. A first actuator for the yarn guides is provided for the passage of the yarn guides from an inactive position to an active position, and a second actuator is provided for actuating the clamping and cutting elements. The first actuator comprises individual actuators actuated to produce passage of each of the yarn guides from the inactive position to the active position or vice versa.

Abstract: A knitting machine with latch needles and without sinkers comprising, in regions of the needle holder comprised between two contiguous slots which accommodate a corresponding needle, a knitting retention element with a portion forming a stop shoulder for the knitting; the knitting retention element can move on command from a first position, of no interference with the knitting formed, to a second position, of it insertion with the portion between two contiguous needles in a region which faces the knitting forming plane, such as retain the knitting portion lying between two contiguous needles, contrasting the entrainment of the knitting along the needles during extraction motion of the needles from the needle holder to release, onto their shank, the previously formed loop of knitting and/or to engage the yarn delivered at a feed or drop of the machine.

Abstract: A circular knitting machine for hosiery or the like, which comprises at least one needle cylinder which has a vertical axis and on the lateral surface of which there are axial slots. Each of these axial slots accommodates a needle (106) and an actuation element (110) for the needle (106) which can engage, with one of its ends, the needle (106) arranged in the same axial slot. The needle (106) or the actuation element (110) is provided with a fixed heel (103a), which protrudes radially from the axial slot, and a movable heel (104a) which can be extracted radially on command from the axial slot. Actuation cams are arranged around the needle cylinder and can be engaged by the fixed heels (103a) and by the movable heels (104a) in the extracted position. The machine can perform the usual knitting of known types of machine despite having an actuation cam set which has an extremely small number of actuation cams which can move for activation or deactivation, or none at all.

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 for producing textile articles with warp-knitting machines, comprising a plurality of steps of shifting at least a first thread-guide (3) bar (2) of jacquard type with shog translational movements and with swing transversal movements, so as to produce textile articles on at least one needle bed (52), shifting at least the first thread-guide (3) bar (2) by means of a corresponding first linear motor, with a shog movement of a first predefined width; varying automatically through control devices (60) the shift controlled by the first linear motor so as to vary the width of the shog movement during the production of the textile articles, and shifting at least the first thread-guide (3) bar (2) with a shog movement having a second predefined width differing from the first one, and automatically controlling by means of the control devices (60) connected to the first thread guide (3) bar (2) at least an individual shift of a needle space of at least a first thread-guide (3) of the first bar (2), in additio

Abstract: A method for knitting manufactured articles with circular knitting machines, particularly high-fineness circular knitting machines, which consists in that at least once during the formation of the manufactured article the number of active needles is reduced by transferring the last loop of knitting formed by certain needles to contiguous needles and thus excluding from knitting the needles that have transferred the loop of knitting during the formation of at least one subsequent row of knitting by the other needles that are kept active. This provides a manufactured article which has regions knitted with a certain number of needles and regions knitted with a smaller number of needles, obtaining particular transparency or shaping effects on the manufacture.

Abstract: A jacquard device (1) for selectively shifting thread-guides (2) in a knitting machine, comprising at least one supporting element (3) provided with a plurality of housing seats (4) for a plurality of thread-guides (2), a plurality of thread-guides (2) mounted onto the supporting element (3) and having at least one thread-guide portion (2b) selectively moving at least between a first and a second operating position and apt to guide a thread (7), at least one actuating element (12) for each thread-guide (2) for shifting the thread-guide portions (2b) of the thread-guides (2) between the first operating position and the second operating position, and at least one electropneumatic actuating device (15) operatively connected to the actuating element (12) for shifting the thread-guide portion (2b) of the thread-guides (2).

Abstract: A tensioning device (1) for circular knitting machines (3) comprising a supporting frame (2) to be mounted turnably below a circular knitting machine (3), a cutter (9) associated to the supporting frame (2) and designed to cut a knitted fabric in tubular piece (5) produced by the circular knitting machine (3), an opener and stretcher (11) for opening and stretching the cut piece (5) in a single fabric layer, a collector (16) for collecting the piece (5) stretched in a single layer by said opener and stretcher (11), and a tensioner (12) for tensioning the piece (5) of knitted fabric, designed to tension the piece (5) of fabric so as to enable the correct production of the piece (5) of fabric by the knitting machine (3), which a tensioner (12) is arranged upstream from the opener and stretcher (11).

Abstract: A circular knitting machine for hosiery or the like, comprises at least one needle cylinder with vertical axis and has, on its lateral surface, a plurality of axial slots, each of which accommodates a needle and an element for actuating the needle. The actuation element comprises at least one connecting element and a selector. The connecting element is provided with a radially actuatable movable heel, and the selector protrudes with a portion between the bottom of the axial slot and the connecting element in any operative position of the machine. The selector is oscillatable on a radial plane of the needle cylinder to produce oscillation of the connecting element and extract its movable heel from the axial slot to achieve engagement with connecting element actuation cams facing the lateral surface of the needle cylinder.

Abstract: A magnetic actuator, particularly for selection devices in hosiery knitting machines or the like, comprising a main magnet, which has at least two poles arranged side by side and separated by a discontinuity, and a selection electromagnet, which is provided with at least one pole arranged in alignment with the discontinuity and spaced laterally with respect to it. The selection electromagnet can be actuated to generate or eliminate or reduce a magnetic attraction force at the pole of the selection electromagnet.

Abstract: A method for transferring a portion of knitting produced by a group of needles to another group of needles of a bed in circular hosiery knitting machines with two beds comprising a step, performed by engagement elements arranged in a first sector of the second bed, for engaging a row of knitting formed by the needles arranged in a first sector of the first bed and a step for angular offset of the second bed with respect to the first bed, in order to move the first sector of the second bed closer to a second sector of the first bed; a step for releasing the row of knitting previously engaged by the engagement elements, to the needles arranged in the second sector of the first bed and, during the engagement release step, a reversal of the orientation of the row of knitting affected by the transfer.

Abstract: A jacquard device (1) for selectively shifting thread-guides (2) in a knitting machine, comprising at least one supporting element (3) provided with a plurality of housing seats (4) for a plurality of thread-guides (2), a plurality of thread-guides (2) mounted onto the supporting element (3) and having at least one thread-guide portion (2b) selectively moving at least between a first and a second operating position and apt to guide a thread (7), at least one actuating element (12) for each thread-guide (2) for shifting the thread-guide portions (2b) of the thread-guides (2) between the first operating position and the second operating position, and at least one electropneumatic actuating device (15) operatively connected to the actuating element (12) for shifting the thread-guide portion (2b) of the thread-guides (2).

Abstract: A method for manufacturing knitted articles for forming items of clothing, without lateral seams, with a circular knitting machine, comprising a step for forming at least one pouch-like region, in which part of the needles or all the needles that belong to at least one sector of the needle cylinder are moved to knit at at least one feed of the machine by way of an alternating rotary motion of the needle cylinder about its axis and with an oscillation extent sufficient to produce transit, at the feed, of all the needles of the sector that are moved to knit at the feed, in order to form, with the needles that belong to the sector and are moved to knit, a number of rows of knitting in excess with respect to the number of rows of knitting formed by the needles contiguous to the sector.

Abstract: A tensioning device (1) for circular knitting machines (3) comprising a supporting frame (2) to be mounted turnably below a circular knitting machine (3), a cutter (9) associated to the supporting frame (2) and designed to cut a knitted fabric in tubular piece (5) produced by the circular knitting machine (3), an opener and stretcher (11) for opening and stretching the cut piece (5) in a single fabric layer, a collector (16) for collecting the piece (5) stretched in a single layer by said opener and stretcher (11), and a tensioner (12) for tensioning the piece (5) of knitted fabric, designed to tension the piece (5) of fabric so as to enable the correct production of the piece (5) of fabric by the knitting machine (3), which a tensioner (12) is arranged upstream from the opener and stretcher (11).

Abstract: A linear knitting machine (1) comprising a machine frame, at least one needlebed (3) associated with the machine frame, a plurality of needles (4) sliding in the needlebed (3), means for feeding the needles (4) with a yarn for building a new stitch and holding-down means (8) cooperating with said needles (4) on the needlebed (3) and moving between a forward position, which occurs when the needle (4) is lifted, in which they act upon said stitch so as to keep it on the stem (5) of the needle (4), and a rear position, when the needle (4) gets down, in which they do not act upon the stitch.