Computer implemented method, system and computer program product for simulating the behavior of a knitted fabric at yarn level. The method comprises: retrieving structural information of a knitted fabric; representing each stitch with four contact nodes (4) at the end of the two stitch contacts (5) between pair of loops (2), each contact node (4) being described by a 3D position coordinate (x) and two sliding coordinates (u, v) representing the arc lengths of the two yarns in contact; measuring forces on each contact node (4) based on a force model including wrapping forces to capture the interaction of yarns at stitches; calculating the movement of each contact node (4) at a plurality of time steps using equations of motion derived using the Lagrange-Euler equations, and numerically integrated over time, wherein the equations of motion account for the mass density distributed uniformly along yarns, as well as the measured forces and boundary conditions.

A fabric file release system for automatically calibrating a circular knitting machine includes a file release end which memorizes a plurality of fabric file and a controlled terminal in information connection with the file release end. Each of the plurality of fabric file comprises a plurality of knitting machine working marks and a plurality of setting parameter values respectively corresponding to one of the knitting machine working marks. The controlled terminal comprises a setting file of knitting machine working including the plurality of knitting machine working marks and a plurality of working parameter values respectively corresponding to one of the knitting machine working marks. The controlled terminal receives one of the fabric file and maps the setting parameter values corresponding to each of the knitting machine working marks to the working parameter values corresponding to each of the knitting machine working marks in the setting file of knitting machine working.

Systems and methods for automatically producing a cord structure are provided herein. In one embodiment, a method comprises automatically forming, with at least one robotic arm, a first plurality of loops in a first plane, and automatically forming, with the at least one robotic arm, a second plurality of loops in a second plane orthogonal to the first plane, the second plurality of loops slippably engaged with the first plurality of loops. In this way, cord structures may be quickly constructed, thereby reducing labor input and expense.

Systems and methods for automatically producing a cord structure are provided herein. In one embodiment, a method comprises automatically forming, with at least one robotic arm, a first plurality of loops in a first plane, and automatically forming, with the at least one robotic arm, a second plurality of loops in a second plane orthogonal to the first plane, the second plurality of loops slippably engaged with the first plurality of loops. In this way, cord structures may be quickly constructed, thereby reducing labor input and expense.

A method for manufacturing a knitted garment includes obtaining customer data regarding at least one customizable garment parameter and applying at least one sequencing module to the customer data to generate a pattern for a customized garment according to the at least one customizable garment parameter. The at least one sequencing module includes a radial symmetry module that includes applying a first transfer sequence to a first section of stitches including executing an underlapping transfer of stitches from successive pairs of needles in the second bed to successive single needles in the first bed, respectively, and applying a second transfer sequence to a second section of stitches including executing an overlapping transfer of stitches from successive pairs of needles in the second bed to successive single needles in the first bed, respectively.

A flat knitting machine mangling device with position varying with gap size is provided. The flat knitting machine mangling device includes a driving element, a fixing base disposed on a cam supporting base, a sliding base disposed to correspond to the fixing base, a limiting block combined with the fixing base and limiting the sliding base to only slide relative to the cam supporting base, a mangling sheet supporting arm and a mangling sheet disposed on the mangling sheet supporting arm. The driving element is started when a knock-over bit cam makes a displacement stroke. The sliding base is provided with a guide block and makes a regulation stroke relative to the cam supporting base when the driving element is started. The guide block drives the mangling sheet to move to change a mangling position when the sliding base makes the regulation stroke.

A flat knitting machine mangling device with position varying with gap size is provided. The flat knitting machine mangling device includes a driving element, a fixing base disposed on a cam supporting base, a sliding base disposed to correspond to the fixing base, a limiting block combined with the fixing base and limiting the sliding base to only slide relative to the cam supporting base, a mangling sheet supporting arm and a mangling sheet disposed on the mangling sheet supporting arm. The driving element is started when a knock-over bit cam makes a displacement stroke. The sliding base is provided with a guide block and makes a regulation stroke relative to the cam supporting base when the driving element is started. The guide block drives the mangling sheet to move to change a mangling position when the sliding base makes the regulation stroke.

A method for knitting a three-dimensional fabric with variable thickness through a flat knitting machine includes the following steps: moving two cam groups and driving a plurality of knitting needles to knit a first piece of knitting by a starting cam system; moving the two cam groups and driving the plurality of knitting needles to knit a second piece of knitting by a middle cam system; and moving the two cam groups and driving the plurality of knitting needles to knit a supporting yarn by two tail cam systems respectively. The tail cam systems control each of a plurality of knock-over bit cams to move according to a gap size corresponding to a knitting length of the supporting yarn, so as to promptly change a thickness of the three-dimensional fabric along the length change of the supporting yarn.

Computer-implemented method for determining a tension value of a limb (5) of a person, the tension value of the limb (5) being used along with a skin value of the limb (5) for production of a custom-tailored compression garment for the limb (5), the skin value describing the circumference of the limb (5) without any applied compression and the tension value describing the circumference of the limb (5) with the compression garment applying a desired compression, wherein the skin value of the limb (5) is received and the tension value of the limb (5) is calculated from the skin value according to a calculation instruction parametrized by at least one parameter, the parameter being derived from a dataset (11) comprising multiple associated tuples of skin values and tension values.

Methods to increase structural performance, strength, and durability of textile-reinforced composite materials are provided. The textile reinforcement may be knitted, for example, in a flat bed weft knitting machine. The method may include pre-stressing a textile reinforcement preform by applying tension. A polymeric precursor may be introduced to the pre-stressed textile reinforcement preform. The polymeric precursor may then be cured or consolidated, followed by releasing of the applied tension to form the composite article comprising polymer and the pre-stressed textile reinforcement. In other aspects, a composite article is provided that has a pre-stressed textile reinforcement structure and a cured polymer. The textile reinforcement may be a knitted, lightweight, seamless, unitary structure. The knitted reinforcement structure may have distinct first and second knitted regions with different levels of pre-stress, thus providing enhanced control over strength, rigidity, and flexibility of the composite article.