A circular hosiery knitting machine comprising a needle cylinder which can be actuated with a rotary motion about its own axis, arranged vertically, and on the skirt of which there is a plurality of axial grooves, each accommodating a needle, a tubular body being arranged internally and coaxially to the needle cylinder and being adapted to receive the manufactured item during its forming; the tubular body is supported so that it can slide along an axial direction within the needle cylinder; and actuation means which act on command on the tubular body in order to actuate its axial movement with respect to the needle cylinder, the actuation means being associated with means for controlling the speed of the tubular body.

The disclosure relates to a 3D printer for clothing, the 3D printer including: a needle module in which a plurality of needle units are arranged side by side, the needle unit including a needle hook formed in an end portion and a plurality of protrusions formed in a middle region; a first actuation module including a carriage for a flat-knitting machine, a rear of which is formed with a track to be linked with one of the plurality of protrusions, and provided to be movable left and right; a second actuation module including a connector formed with a screw thread for meshing with another one of the plurality of protrusions, and an actuator for actuating the connector to move, and provided to be movable left and right; a first movement unit allowing the first actuation module to move up and down to be in contact with the needle module; and a second movement unit allowing the connector of the second actuation module to move up and down with respect to the needle module, wherein, when the protrusion of the needle unit is linked to the track as the first movement unit moves the first actuation module toward the needle module, the needle unit moves forward or backward by the connection between the track of the carriage and the protrusion as the carriage moves left and right, and wherein, when the second movement unit moves the connector of the second actuation module toward the needle module, the needle unit meshing with the screw thread moves forward or backward as the actuator actuates the connector to rotate while the screw thread is connecting with the protrusion of the needle unit. With this, there is provided a clothing-manufacturing 3D printer with a new actuation mechanism.

The disclosure relates to a 3D printer for clothing, the 3D printer including: a needle module in which a plurality of needle units are arranged side by side, the needle unit including a needle hook formed in an end portion and a plurality of protrusions formed in a middle region; a first actuation module including a carriage for a flat-knitting machine, a rear of which is formed with a track to be linked with one of the plurality of protrusions, and provided to be movable left and right; a second actuation module including a connector formed with a screw thread for meshing with another one of the plurality of protrusions, and an actuator for actuating the connector to move, and provided to be movable left and right; a first movement unit allowing the first actuation module to move up and down to be in contact with the needle module; and a second movement unit allowing the connector of the second actuation module to move up and down with respect to the needle module, wherein, when the protrusion of the needle unit is linked to the track as the first movement unit moves the first actuation module toward the needle module, the needle unit moves forward or backward by the connection between the track of the carriage and the protrusion as the carriage moves left and right, and wherein, when the second movement unit moves the connector of the second actuation module toward the needle module, the needle unit meshing with the screw thread moves forward or backward as the actuator actuates the connector to rotate while the screw thread is connecting with the protrusion of the needle unit. With this, there is provided a clothing-manufacturing 3D printer with a new actuation mechanism.

The disclosure relates to a clothing-manufacturing 3D printer, and the clothing-manufacturing 3D printer according to the disclosure includes a needle unit including a needle hook formed in an end portion and a protrusion formed in a middle region; a connector including a screw thread formed to mesh with the protrusion of the needle unit; and an actuator configured to actuate the connector to rotate, wherein the needle unit meshing with the screw thread is moved forward or backward as the connector is rotated by the actuator. Accordingly, there is provided a clothing-manufacturing 3D printer with a new actuating system.

The disclosure relates to a clothing-manufacturing 3D printer, and the clothing-manufacturing 3D printer according to the disclosure includes a needle unit including a needle hook formed in an end portion and a protrusion formed in a middle region; a connector including a screw thread formed to mesh with the protrusion of the needle unit; and an actuator configured to actuate the connector to rotate, wherein the needle unit meshing with the screw thread is moved forward or backward as the connector is rotated by the actuator. Accordingly, there is provided a clothing-manufacturing 3D printer with a new actuating system.

A circular knitting machine for knitted or hosiery items includes a supporting structure; a needle-holding cylinder rotatable around an axis of rotation and supporting a plurality of cylinder needles that are movable for producing a knitted fabric; a dial assembly, arranged above the cylinder and comprising a needle-holding plate rotating around the axis of rotation and supporting a plurality of plate needles that are movable for producing a knitted fabric. The machine includes motion generation elements, in order to rotate the needle-holding cylinder around the axis of rotation, and motion transmission elements configured for forming a motion transmission chain capable of transmitting to the plate, synchronously with respect to the cylinder, the rotation generated by the motion generation elements. The motion transmission elements include a first toothed wheel, receiving the rotary motion of the motion generation elements; a second toothed wheel, mounted coaxially with the needle-holding plate; an offset device, located between the first and the second toothed wheel and comprising an inlet gear, engaged with the first toothed wheel, and an outlet gear, engaged with the second toothed wheel. The inlet and outlet gears are mounted coaxially with one another and are translatable by an actuator, so as to change the engagement of the inlet gear with the first toothed wheel and/or the engagement of the outlet gear with the second toothed wheel.

A circular knitting machine for knitted or hosiery items includes a supporting structure; a needle-holding cylinder rotatable around an axis of rotation and supporting a plurality of cylinder needles that are movable for producing a knitted fabric; a dial assembly, arranged above the cylinder and comprising a needle-holding plate rotating around the axis of rotation and supporting a plurality of plate needles that are movable for producing a knitted fabric. The machine includes motion generation elements, in order to rotate the needle-holding cylinder around the axis of rotation, and motion transmission elements configured for forming a motion transmission chain capable of transmitting to the plate, synchronously with respect to the cylinder, the rotation generated by the motion generation elements. The motion transmission elements include a first toothed wheel, receiving the rotary motion of the motion generation elements; a second toothed wheel, mounted coaxially with the needle-holding plate; an offset device, located between the first and the second toothed wheel and comprising an inlet gear, engaged with the first toothed wheel, and an outlet gear, engaged with the second toothed wheel. The inlet and outlet gears are mounted coaxially with one another and are translatable by an actuator, so as to change the engagement of the inlet gear with the first toothed wheel and/or the engagement of the outlet gear with the second toothed wheel.

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 machine for clothing has a needle module with a plurality of needle units. Each of the needle units has a needle hook and a plurality of protrusions. The machine also has a first actuation module with a carriage that has a track to connect to one of the protrusions. The carriage can move left and right, and this movement moves the needle units in a longitudinal direction. The machine also has a second actuation module with a connector that has a screw thread to mesh with another one of the protrusions. The connector can move up and down, and this movement moves the needle units.

A knitting machine for clothing has a needle module with a plurality of needle units. Each of the needle units has a needle hook and a plurality of protrusions. The machine also has a first actuation module with a carriage that has a track to connect to one of the protrusions. The carriage can move left and right, and this movement moves the needle units in a longitudinal direction. The machine also has a second actuation module with a connector that has a screw thread to mesh with another one of the protrusions. The connector can move up and down, and this movement moves the needle units.