An open-type knitting machine for the open and width-variable web production with a fabric take-down and/or collecting assembly, including a basement and a knitting head provided with a needle-holding element having a plurality of needles arranged around a central axis. A first active needle and a last active needle of the plurality delimit between them a dead zone of the needle-holding element without active needles, and an operating zone shaped as an arc of circle and provided with active needles for producing a partially tubular knitted fabric. A take-down and/or collecting assembly for the knitted fabric under production is arranged downstream from the knitting head with respect to a feeding direction of the knitted fabric. The knit-ting machine further comprises devices for adjusting the angular position of the take-down and/or collecting assembly with respect to the dead zone of the needle-holding element around the central axis.

An open-type knitting machine for the open and width-variable web production with a fabric take-down and/or collecting assembly, including a basement and a knitting head provided with a needle-holding element having a plurality of needles arranged around a central axis. A first active needle and a last active needle of the plurality delimit between them a dead zone of the needle-holding element without active needles, and an operating zone shaped as an arc of circle and provided with active needles for producing a partially tubular knitted fabric. A take-down and/or collecting assembly for the knitted fabric under production is arranged downstream from the knitting head with respect to a feeding direction of the knitted fabric. The knit-ting machine further comprises devices for adjusting the angular position of the take-down and/or collecting assembly with respect to the dead zone of the needle-holding element around the central axis.

A knitting method and an apparatus for a cylindrical biaxial weft-knitted three-dimensional knitted structure. The biaxial three-dimensional knitted structure comprises two weft plain stitch structures (7, 7′), a group of spacer yarns (416), two groups of weft inserting yarns (415, 415′) and a group of warp inserting yarns (43), wherein the two groups of weft inserting yarns are used for selective weft inserting on a needle dial (11) or a needle cylinder (13), the warp inserting yarns are positioned between the two groups of weft inserting yarns, the two weft plain stitch structures are connected with each other by the group of spacer yarns, for jointly clamping the weft inserting yarns and the warp inserting yarns, in order to form a biaxial weft-knitted three-dimensional knitted structure. Such three-dimensional knitted structure improves the mechanical properties of three-dimensional knitted fabrics; by increasing the interval between the needle dial and the needle cylinder, the thickness of the knitted structure is increased, which is suitable for the reinforced structure of high-performance structural and functional composite materials, and expand the field of the use of the knitted structures.

A knitting method and an apparatus for a cylindrical biaxial weft-knitted three-dimensional knitted structure. The biaxial three-dimensional knitted structure comprises two weft plain stitch structures (7, 7′), a group of spacer yarns (416), two groups of weft inserting yarns (415, 415′) and a group of warp inserting yarns (43), wherein the two groups of weft inserting yarns are used for selective weft inserting on a needle dial (11) or a needle cylinder (13), the warp inserting yarns are positioned between the two groups of weft inserting yarns, the two weft plain stitch structures are connected with each other by the group of spacer yarns, for jointly clamping the weft inserting yarns and the warp inserting yarns, in order to form a biaxial weft-knitted three-dimensional knitted structure. Such three-dimensional knitted structure improves the mechanical properties of three-dimensional knitted fabrics; by increasing the interval between the needle dial and the needle cylinder, the thickness of the knitted structure is increased, which is suitable for the reinforced structure of high-performance structural and functional composite materials, and expand the field of the use of the knitted structures.

A circular knitting machine with a needle cylinder (11), in which cylinder needles (13) are mounted to be longitudinally displaceable, and a dial (12), in which rib dial needles (14) are mounted to be radially displaceable, wherein auxiliary elements (15), in particular sinkers, associated with the cylinder needles (13) and auxiliary elements (16), in particular sinkers, associated with the rib dial needles (14), as well as separate thread feeds to the cylinder needles (13) and to the rib dial needles (16) are provided, wherein separate tubular knits (19, 20) can be produced simultaneously or one after the other with the cylinder needles (13) and with the rib dial needles (14).

A circular knitting machine with a needle cylinder (11), in which cylinder needles (13) are mounted to be longitudinally displaceable, and a dial (12), in which rib dial needles (14) are mounted to be radially displaceable, wherein auxiliary elements (15), in particular sinkers, associated with the cylinder needles (13) and auxiliary elements (16), in particular sinkers, associated with the rib dial needles (14), as well as separate thread feeds to the cylinder needles (13) and to the rib dial needles (16) are provided, wherein separate tubular knits (19, 20) can be produced simultaneously or one after the other with the cylinder needles (13) and with the rib dial needles (14).

Machine and method for controlling textile fabric defects during the textile production and method for retrofitting a circular knitting machine having a fixed support structure, a rotational support structure, said system comprising: a digital camera for capturing digital images of the knitted textile fabric, a data processor for processing the captured digital images, a camera support structure for holding the camera, a lighting system to illuminate the knitted textile fabric from the camera side for capture by the digital camera; wherein the camera and back support structures are fixed to the rotational structure.

Machine and method for controlling textile fabric defects during the textile production and method for retrofitting a circular knitting machine having a fixed support structure, a rotational support structure, said system comprising: a digital camera for capturing digital images of the knitted textile fabric, a data processor for processing the captured digital images, a camera support structure for holding the camera, a lighting system to illuminate the knitted textile fabric from the camera side for capture by the digital camera; wherein the camera and back support structures are fixed to the rotational structure.

A circular knitting machine, a method for controlling textile fabric defects, and a method for retrofitting a circular knitting machine are provided. The circular knitting machine includes a fixed support structure, a rotational support structure, and a system for controlling textile fabric defects. The system includes a digital camera for capturing digital images of knitted textile fabric, a data processor for processing the captured digital images, a camera support structure for holding the camera, and a lighting system to illuminate the knitted textile fabric from the camera side for capture by the digital camera. The camera support structure is fixed to the rotational structure.

A circular knitting machine, a method for controlling textile fabric defects, and a method for retrofitting a circular knitting machine are provided. The circular knitting machine includes a fixed support structure, a rotational support structure, and a system for controlling textile fabric defects. The system includes a digital camera for capturing digital images of knitted textile fabric, a data processor for processing the captured digital images, a camera support structure for holding the camera, and a lighting system to illuminate the knitted textile fabric from the camera side for capture by the digital camera. The camera support structure is fixed to the rotational structure.