This application relates to a yarn carrier device with a yarn tension control function for a flat knitting machine, and a yarn tension control method. At the moment a carriage is connected to a yarn carrier device, a fixing frame carrying a bobbin ascends or descends on sliding rails installed on the yarn carrier device. The ascending or descending speed, time and distance of the fixing frame can be calculated directly according to a yarn carrier stop, the quantity of an unknitted portion of the yarn and the speed of the carriage. When the carriage contacts a yarn carrier, the fixing frame is controlled to ascend along the sliding rails. When the carriage drives the yarn carrier to enter a knitting area, the fixing frame is controlled to descend.

Disclosed are a tension adjustment method of a warp knitting variable-speed and uniform-tension yarn feeding device, and a weaving method. The device includes warp beams, connecting rod frames, a guide bar, a looping mechanism and a drawing and rolling-up mechanism, where the connecting rod frames are connected to yarn winding wheels and yarn guide plates, yarns are wound on the warp beams, and the yarn winding wheels are positioned between the warp beams and the guide bar; each of the yarn winding wheels includes a yarn inlet, a yarn winding shaft and a yarn outlet. According to the present disclosure, the tension produced in a yarn feeding process is actively adjusted by the variable-speed tension yarn winding wheels to make up tension error caused by looping; and the present disclosure is capable of compensating in time, does not easily break the yarns, is high in knitting efficiency and quality.

Disclosed are a tension adjustment method of a warp knitting variable-speed and uniform-tension yarn feeding device, and a weaving method. The device includes warp beams, connecting rod frames, a guide bar, a looping mechanism and a drawing and rolling-up mechanism, where the connecting rod frames are connected to yarn winding wheels and yarn guide plates, yarns are wound on the warp beams, and the yarn winding wheels are positioned between the warp beams and the guide bar; each of the yarn winding wheels includes a yarn inlet, a yarn winding shaft and a yarn outlet. According to the present disclosure, the tension produced in a yarn feeding process is actively adjusted by the variable-speed tension yarn winding wheels to make up tension error caused by looping; and the present disclosure is capable of compensating in time, does not easily break the yarns, is high in knitting efficiency and quality.

A process for production of knitted articles is disclosed. The process may be performed using, for example, a linear knitting machine including a first needle bed, a second needle bed, a first jacquard bar with odd thread guides, a second jacquard bar with even thread guides, a third jacquard bar with odd thread guides, and a fourth jacquard bar with even thread guides. The process includes producing at least a portion of a knitted article by means of a base movement of the jacquard bars, in which: the first and the third jacquard bar are each moved with an identical shog movement; the second and the fourth jacquard bar are moved with a respective shog movement identical to one another; and the second and the fourth jacquard bar are moved with a respective shog movement identical to one another.

A process for production of knitted articles is disclosed. The process may be performed using, for example, a linear knitting machine including a first needle bed, a second needle bed, a first jacquard bar with odd thread guides, a second jacquard bar with even thread guides, a third jacquard bar with odd thread guides, and a fourth jacquard bar with even thread guides. The process includes producing at least a portion of a knitted article by means of a base movement of the jacquard bars, in which: the first and the third jacquard bar are each moved with an identical shog movement; the second and the fourth jacquard bar are moved with a respective shog movement identical to one another; and the second and the fourth jacquard bar are moved with a respective shog movement identical to one another.

A jacquard warp tensioning device for a warp knitting machine, comprising a pair of side panels (1) disposed on two sides of the machine casing, a warp beam (2) positioned at the upper portions of the side panels (1), a plurality of warp guide rods (3, 4, 5) disposed at positions lower than that of the warp beam (2) and a flat spring warp dividing device (16), wherein an upper tension balancing device (6) and a lower tension balancing device (11) are disposed between the warp beam (2) and the warp guide rods (3, 4, 5), the upper tension balancing device (6) comprising an upper rotating shaft (7) with two ends thereof disposed on the side panels (1), an upper servo motor (8) disposed at one end of the upper rotating shaft (7) and an upper tensioning rod (9) fixedly disposed on the upper rotating shaft (7) by means of a plurality of upper connecting rods (10), the lower tension balancing device (11) comprising a lower rotating shaft (12) with two ends thereof disposed on the side panels (1), a lower servo motor (13) disposed at one end of the lower rotating shaft (12) and a lower tensioning rod (14) fixedly disposed on the lower rotating shaft (12) by means of a plurality of lower connecting rods (15), the upper servo motor (8) and the lower servo motor (13) being connected with an industrial computer (17) through a servo driver (19), respectively. The jacquard warp tensioning device proactively controls warp tension and has a high level tension compensation, thereby making the yarns not prone to being broken and enabling smooth surfaces of woven fabrics.

A jacquard warp tensioning device for a warp knitting machine, comprising a pair of side panels (1) disposed on two sides of the machine casing, a warp beam (2) positioned at the upper portions of the side panels (1), a plurality of warp guide rods (3, 4, 5) disposed at positions lower than that of the warp beam (2) and a flat spring warp dividing device (16), wherein an upper tension balancing device (6) and a lower tension balancing device (11) are disposed between the warp beam (2) and the warp guide rods (3, 4, 5), the upper tension balancing device (6) comprising an upper rotating shaft (7) with two ends thereof disposed on the side panels (1), an upper servo motor (8) disposed at one end of the upper rotating shaft (7) and an upper tensioning rod (9) fixedly disposed on the upper rotating shaft (7) by means of a plurality of upper connecting rods (10), the lower tension balancing device (11) comprising a lower rotating shaft (12) with two ends thereof disposed on the side panels (1), a lower servo motor (13) disposed at one end of the lower rotating shaft (12) and a lower tensioning rod (14) fixedly disposed on the lower rotating shaft (12) by means of a plurality of lower connecting rods (15), the upper servo motor (8) and the lower servo motor (13) being connected with an industrial computer (17) through a servo driver (19), respectively. The jacquard warp tensioning device proactively controls warp tension and has a high level tension compensation, thereby making the yarns not prone to being broken and enabling smooth surfaces of woven fabrics.

A process for production of knitted articles is disclosed. The process may be performed using, for example, a linear knitting machine including a first needle bed, a second needle bed, a first jacquard bar with odd thread guides, a second jacquard bar with even thread guides, a third jacquard bar with odd thread guides, and a fourth jacquard bar with even thread guides. The process includes producing at least a portion of a knitted article by means of a base movement of the jacquard bars, in which: the first and the third jacquard bar are each moved with an identical shog movement; the second and the fourth jacquard bar are moved with a respective shog movement identical to one another; and the second and the fourth jacquard bar are moved with a respective shog movement identical to one another.

A process for production of knitted articles is disclosed. The process may be performed using, for example, a linear knitting machine including a first needle bed, a second needle bed, a first jacquard bar with odd thread guides, a second jacquard bar with even thread guides, a third jacquard bar with odd thread guides, and a fourth jacquard bar with even thread guides. The process includes producing at least a portion of a knitted article by means of a base movement of the jacquard bars, in which: the first and the third jacquard bar are each moved with an identical shog movement; the second and the fourth jacquard bar are moved with a respective shog movement identical to one another; and the second and the fourth jacquard bar are moved with a respective shog movement identical to one another.

Aspects herein are directed to a tensioning device for a strand on a knitting machine. The tensioning device includes a mounting plate that may be positioned between a strand source and a feeder bar. The mounting plate supports a first pulley, a second pulley and a weighted third pulley that is movable with respect to the first pulley and the second pulley. By routing a strand over the first pulley, under the third pulley and over the second pulley, additional tension may be added to the strand through the weight of the third pulley.