Abstract: The present invention discloses a fiber guide that can be used to feed delicate fibers into a machine, for example, the feeding of hollow fibers into a knitting machine. The disclosed guide utilizes dynamic friction and provides for horizontal and front-to-back positioning of the delicate fiber, keeping the delicate fiber vertically aligned while being fed into a machine. Utilizing dynamic friction and maintaining vertical alignment prevents damage to the delicate fiber. The guide also provides for the delicate fiber to be fed from a plurality of overhead angles from a feeding mechanism.

Abstract: The present invention discloses a fiber guide that can be used to feed delicate fibers into a machine, for example, the feeding of hollow fibers into a knitting machine. The disclosed guide utilizes dynamic friction and provides for horizontal and front-to-back positioning of the delicate fiber, keeping the delicate fiber vertically aligned while being fed into a machine. Utilizing dynamic friction and maintaining vertical alignment prevents damage to the delicate fiber. The guide also provides for the delicate fiber to be fed from a plurality of overhead angles from a feeding mechanism.

Abstract: A clamping-effective yarn cylinder comprises a yarn cylinder having a trench about 350 degrees around an outer periphery of the yarn cylinder; each of two ends of the trench being formed with a cambered wall; the trench being divided into four sections so that four molds can enter into the trench from the four sections which are divided by four radius lines; each section having teeth which are tilt to different directions so as to enhance the force for clamping the yarns; and the teeth for each section extending from two lateral walls of the section and having identical orientation; extensions of the teeth of adjacent sections will intersect to one another so that yarns can be captured effectively in the trench.

Abstract: A system (1) for controlling the feed of a yarn to a textile machine or a metal wire to a coil winder or a similar machine, the yarn or wire unwinding from its own spool and cooperating with a rotary member associated with its own rotation actuator (2) before being directed to the machine, the yarn or wire having its own characteristic value of tension and/or speed and/or quantity during this feed, the rotation actuator (2) comprising a stator and a rotor acting on an exit drive shaft (13) and being piloted by its own piloting means, the rotary member about which the yarn or wire winds being keyed onto the exit drive shaft (13), the control system comprising: means (4) for continuously measuring an angular position of the drive shaft of the actuator (2), comparison and command means (5, 8) connected downstream of the measurement means (4), to compare an instantaneous parameter correlated to the measured angular position of the drive shaft (13), with a corresponding predetermined parameter relative to a prefix

Abstract: In order to monitor/adjust production especially in a circular knitting machine comprising several knitting systems and several yarn feeder devices, yarn is fed to active knitting systems from several supply devices operating according to at least two different yarn feeder principles, in a non-positive manner. The individually fed amounts of yarn are continuously measured by means of scanned real rotation signals of the feeder devices. In order to obtain monitoring information and/or adjustment measures, comparisons are made with corresponding set amounts of yarn within at least one range of tolerance, the extent of which is adapted at least to yarn quality and/or yarn path parameters.

Abstract: A device for dispensing at least one thread at a feed or drop of a circular machine for knitting hosiery or the like, particularly for single-cylinder circular machines. The device comprises at least one thread guide which is arranged at a feed or drop of a circular machine for knitting hosiery or the like and has an end for dispensing a thread which laterally faces the needle cylinder proximate to its upper end, in the needle work area of the machine. The thread guide can controllably move with respect to the needle cylinder for shifting its thread dispensing end along a path which has a component which is substantially parallel to the tangent, located in a plane which is substantially perpendicular to the axis of the needle cylinder, to the needle cylinder in a region at which it is arranged.

Abstract: A yarn feed device for circular knitting machines includes a yarn guide (12) by which the yarn (4) is fed to to the knitting implements (3) of the knitting machine from the side. For reliable feed of the yarn the yarn, guide has a downwardly open guide channel (26) with an exit section (29). The channel angle (b) is smaller than the yarn angle (a), at least at the exit section. A passage (14) passing through the yarn guide is provided as a further yarn guide, of which one bounding wall preferably has a yarn threading opening (31) in the form of a slot opening to facilitate threading the yarn.

Abstract: The articles are formed on individual arcs of needles (13, 15) facing each other on the two bars of the cylinder (11) and of the plate (10), the articles having rows formed partly by the needles of one bar and partly by the needles of the other bar, and having two successive yarn feeds (344, 345); means for guiding and switching (458, 459) the position of the two yarns supply them to the needles at two angles and exchange their positions at each reversal of the entrainment thereof by the selective entraining means comprising pairs of hooks (342, 343; 349, 350) carried by two counter-rotating apparatuses (26; 32).

Abstract: To blow a yarn toward the needles and release it from the gripping device upon yarn feeding in a circular knitting machine, in particular a double cylinder one, a device is provided which is synchronized with each yarn feeding finger regardless of the number of feeds. The device comprises a control cam provided with a boss and rotated synchronically with the needle cylinder(s), an actuating cam provided with two oppositely located notches and connected to the control cam through a normally disengaged coupling controlled by the machine program, and an actuating lever which follows the profile of the actuating cam and controls a valve to cause it to engage with the control cam and be operated by the boss thereof to deliver pressurized air to the yarn feeding area. The valve can be moved into the operative position by means of each yarn feeding finger associated with one feed.

Abstract: An improvement for knitting pattern areas with hosiery knitting machines having a rotatable cylinder carrying latch needles therein, a knitting station at which a plurality of yarn feed fingers are independently movable into and out of yarn feeding positions for feeding background yarn at a basic level and pattern yarn at a higher level above the cylinder, and means for selectively positioning the needles at either a basic position for receiving only background yarn or an extended position for receiving both background and pattern yarn, the improvement being an auxiliary feed finger for feeding background yarn at a level more closely spaced from the cylinder than the basic level to needles at the basic position and below the latches of needles at the extended position for floating of the background yarn in knitted pattern areas behind loops of pattern yarn formed by extended position neeldes.

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 thread feed device for a circular knitting machine of the type having a fixed needle cylinder and needle dial and rotatable cams, for manufacturing open fabric. The needle cylinder and needle dial have a needle-free sector and the feed device comprises a stationary support for a plurality of thread spools, and a plurality of thread guides and levers arranged adjacent the needle-free sector. The thread guides and the levers associated therewith are selectively pivotable between a position in which they feed a selected thread to the needles and a position in which they hold the thread in a non-feeding position. Each thread is fed to the needles by means of a rotatable hooked member which entrains the thread around the needle cylinder. Each thread after being fed to the needles and having been knitted thereby is cut before reaching the needle-free sector.