Abstract: A feeder for a knitting machine may include: a carrier configured to secure the feeder to a knitting machine such that the feeder is movable along an axis with respect to a rail of the knitting machine; a feeder arm extending from the carrier, the feeder arm including a dispensing area configured for supplying a yarn to a needle bed of the knitting machine; and a cutting device coupled to the feeder arm, where the cutting device includes a cutting edge for cutting the yarn to disengage an upper portion of the yarn from the needle bed of the knitting machine.

Abstract: A circular hosiery knitting machine, particularly of the double cylinder type, with yarn finger for plated knitting, comprising at least one needle cylinder and a first yarn finger for dispensing a base yarn and a second yarn finger for dispensing a reinforcement yarn; the dispensing end of the body of the second yarn finger can move on command with respect to the remaining part of the body of the second yarn finger, on a plane that is substantially perpendicular to the axis of the needle cylinder, along a direction that is substantially parallel to the tangent to the needle cylinder in the grip point, by needles, of a reinforcement yarn dispensed by the second yarn finger.

Abstract: A thread aspirating device (1) for circular knitting machines, comprising a body (2) of the thread aspirating device having a lower side (3), defining an inlet opening (4) enabling inlet of one or more threads in the thread aspirating device, and an up per side (5), provided with an engaging portion (6) delimiting a passage opening (7) in the upper side. The thread aspirating device comprises a mouthpiece (10) extending between an open lower end (11), defining a mounting portion (12) complementarily shaped to the engaging portion, and an upper end (13) provided with an aspirating opening (14). The mouthpiece is superiorly mounted on the body of the device so that the mounting portion corresponds to the engaging portion; the mouthpiece and the body internally define an aspirating space (20) of the threads between the inlet opening and the aspirating opening. The mouthpiece and the body overall form, in mounting condition, a thread aspirating device in a single body.

Abstract: The invention relates to a device (3) for pinching and cutting yarns for a flat knitting machine, said machine, said machine comprising at least one needle board (1) on which a plurality of needles are arranged, said device comprising a plurality of hooks (6) capable of grasping at least one yarn and moving between an idle position and a gripping position, said device being configured to be fastened to one of the ends of said needle board such that said device, when fastened to the needle board of the machine, extends in the plane of said needle board.

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 high speed color altering head for single-face circular knitting machines is installed on a circular knitting machine and controlled by a return cam, a needle selection device and upper and lower cams to perform colored yarns feeding operation for knitting needles to achieve colored and jacquard knitting effect. The color altering head includes two outer plates, a plurality of yarn feeding mechanisms, a plurality of yarn clipping mechanisms, a plurality of spacers and a plurality of color selection pressing plates. The needle selection device drives the color selection pressing plates to release the corresponding yarn feeding mechanisms and yarn clipping mechanisms so that the upper and lower cams of the circular knitting machine can control yarn feeding and yarn clipping operations at high speed without dropping the yarns.

Abstract: The present invention relates to a striping apparatus of a circular knitting machine, comprising: a selector, a controller, a yarn-feed unit, and a drive unit. The yarn-feed unit has two portions; the first portion includes a yarn-changing plate, which feeds a yarn into a yarn-entering position, and the second portion includes a movable blade, which clips the tail of the yarn when standby and cuts off an old yarn so that the old yarn can depart from fabric when changing yarns and the operation can back to the standby state. In the preferred embodiments of the present invention, different cams respectively drive the yarn-changing plate and the movable blade, and even though a new yarn and an old yarn are farther spaced, the timings of the cams can be adjusted to release the tail of new the yarn from the movable blade before it is torn off.

Abstract: A thread gripping device, for gripping elastic thin thread, in a circular knitting machines, having a supporting element that supports thread guides proximate to a drop or feed, above the needle cylinder and proximate to the needle work area, and bearing at least one elastic lamina element and a thread locking lever pivoted to the supporting element and to rotate scissor-like to catch the thread with a grip portion between the locking lever and the elastic lamina element. The thread gripping region of the locking lever is made of a material with higher friction coefficient, than the remaining part of the locking lever.

Abstract: A device for gripping thread in circular hosiery knitting machines comprising a supporting element fixable to the structure of the machine supporting the thread guides proximate to a drop or feed, above the needle cylinder and proximate to the needle work area, that bears at least one elastic lamina element and a thread locking lever pivoted to the supporting element and rotatable scissor-like with respect to the elastic lamina element to catch the thread with a grip portion between the locking lever and the elastic lamina element. The thread grip portion of the locking lever has two opposite shoulders that delimit bilaterally movement of the thread toward or away from the axis of the needle cylinder.

Abstract: A method for trimming loose threads in circular knitting machines, comprising the steps of: starting from an initial pattern and on the basis of a given type of circular knitting machine, if one wishes to trim the loose threads, measuring a distance between needles of the same color on a same row in order to check whether the distance is at least equal to, or greater than, a minimum distance that allows to perform trimming of the loose threads; if the distance is shorter than the minimum distance, replacing a portion of the pattern with at least one special color that identifies a different type of knitting process for the portion of pattern, to be performed on the circular knitting machine; modifying the pattern on the basis of the replacement of the portion of pattern; producing an advancement by a number of rows equal to the number of drops of the knitting machine that are active; and encoding the pattern with the modifications, in order to perform the knitting process.

Abstract: A yarn-locking/cutting device for circular stocking knitting machines. The device includes two elements (16, 18), hanging from a support (17) which is arranged in a zone contained between the yarn guides and the cutting unit. The elements are inclined in the direction of rotation of the machine. One element is controlled and has a mouth for taking and for moving the yarn.

Abstract: A yarn feeder, particularly for elastic yarns having a high elongation coefficient, in circular knitting machines. The feeder comprises a series of passages and/or contact regions forming a path for the yarn that unwinds from the spool or reel up to the needle work area of the machine. The feeder comprises, along the path, an element which can engage the yarn and can move on command in order to lengthen the yarn path so as to produce an excess length of yarn unwound from the spool with respect to the length of yarn required by the machine and so as to supply at least part of the excess yarn directly before yarn cutting, which is performed proximate to the needle work area of the machine.

Abstract: A binding mechanism for holding yarns of circular knitting machines during yarn changeover and when yarns are moved to inactive positions includes an elastomeric member having deformable when engaged with a flat surface and having pliable surfaces for simultaneously receiving and individually gripping multiple yarns, the member being of silicone rubber having a durometer hardness range of 45-70.

Abstract: The circular knitting machine has a pneumatic service circuit with pneumatically actuated service devices arranged around the needle cylinder. An annular body surrounds the needle cylinder, and a main duct is defined in the annular body. The main duct is supplied with pressurized air and is connected to the supply ducts of pneumatic actuators which actuate the service devices. Valve for operating the actuators are arranged between the actuator supply ducts and the main duct.

Abstract: A yarn feed assembly for circular knitting machines for presenting one or more yarns chosen from a plurality of available yarns into the needle path under the control of a microprocessor. An arcuately movable sector-shaped yarn guide includes a plurality of openings therein for positioning a plurality of yarns in spaced parallel position with each other. A toggle clamp for each yarn located downstream from the yarn guide keeps the yarns taut in their normal stored position. To select a yarn for feeding to the feed station, a transfer arm selects the yarn positioned in a pickup position by the yarn guide. As the transfer arm begins to move, the corresponding toggle clamp releases, and the yarn is then fed onto its yarn feed location.

Abstract: In the process a first thread differing in color with respect to a second thread which constitutes the stocking is fed by a thread guide alternatively to the second thread to a preset number of needles during the formation of a row of stitches. The first thread, which constitutes the design, is cut proximate to the ends of the portion of the row knit by the preset number of needles and the ends of the thread are moved towards the inside of the needle cylinders by means of a flow of air.

Abstract: Feeder-stripper device for circular knitting machines, whereby the device can be anchored substantially at a tangent to the needle cylinders and comprises a carrying structure consisting of a plurality of firm supporting surfaces to support the yarn carriers, and whereby the firm supporting surfaces are mutually sloped fan-wise in both a substantially radial direction and a substantially tangential direction in relation to the needle cylinders, whereby the yarn carriers are fitted in a relatively movable manner in relation to the firm surfaces so as to enable their own ends to follow a substantially continuous and curved path during their movement between their working position and their position of rest, and whereby each yarn carrier cooperates with a four-bar positioning and supporting linkage provided with only one degree of freedom and anchored revolvably to their respective firm supporting surface, and whereby suitable actuators rotate the respective linkage, on each of which there act bias elements coop

Abstract: The invention relates to a thread carrier for a knitting machine, having at least one controllable thread gripper and an inserter (19) whose end at which the thread (16) emerges is in the form of an open channel (76). To simplify the insertion or removal of threads, the thread gripper (109) and the inserter (19) are disposed so as to be movable relative to one another such that the thread can either be inserted into the channel or removed therefrom by the thread gripper (109) itself.

Abstract: This multiple needle cylinder hosiery knitting machine is provided with a single horizontally disposed pattern disc surrounding the needle cylinders and controlling the simultaneous knitting of a sock on each of the needle cylinders. All of the instrumentalities used in knitting a sock at each needle cylinder, such as the yarn feed fingers, yarn cutters, the needle selecting devices, etc., are controlled by cams on the pattern disc. Drive means is provided for imparting step-by-step movement to the single pattern disc and a pattern chain controls movement of the pattern disc. Easy access is provided to the pattern disc and to each of the needle cylinders for changing patterns, cleaning and lubricating, for replacing parts, and for making other adjustments and repairs to the machine.

Abstract: A continuous, tubular, one-piece panty hose is formed on a circular knitting machine with a waist opening extending longitudinally of the direction of knitting and surrounded by a reinforced elastic section with stitches that resist raveling or breakdown. In the waist portion of the panty hose, each course is formed by a pair of partial courses, one end of which overlap and the other end of which form the longitudinal opening.

Abstract: A circular knitting machine having a thread guide fixed to the machine is formed with a thread insertion slot, and a plurality of thread guiding eyes holding threads for insertion. A thread entrainment element is located below the thread guide, travelling synchronously with the progression of movement of the needles between idle and knitting position. The thread entrainment element has a segment projecting radially under the thread guide means, and formed with an inwardly, rearwardly inclined guide surface to entrain and insert threads held by the eyes on the thread guide means into the thread insertion slot when the respective eyes are in working position.

Abstract: A device for changing threads in circular knitting machines, the device having several thread-changing units each of which is assigned to a knitting system of the circular knitting machine. The units have several thread-changing fingers for guiding various threads which can be selectively led to a knitting zone. The thread-changing units have members which include devices for cutting and clamping threads. In accordance with the invention, the thread-changing member of each thread-changing unit is connected with an electrically operated preselector, and is mechanically operated in dependence upon this preselector.

Abstract: A plating feeder for use in a circular knitting machine comprises a first mouth for supplying a first yarn, and a second mouth for supplying a second yarn and which is movable relative to the first and second mouths together to alter the angle between the yarns fed by the plating feeder during knitting. The first mouth is provided on an elongate first feeder part and the second mouth is provided on a second feeder part slidable lengthwise on the first feeder part. A biasing spring urges the first and second mouths together and a cam follower coacts with the movable mouth and engages with a cam to override the spring. The first mouth is in a form of a narrow aperture for defining a single yarn feed position for a facing yarn and the second mouth is in a form of a trough at least partly surrounding the first mouth for defining alternative, interconnected yarn feed positions for a backing yarn on either side of the first mouth.