Patent classifications
D03J2700/06
Weft insertion method and device in water jet loom
A weft detection sensor is provided that detects a passage of a weft to determine a passage timing of a weft circulating around a storage drum, and a weft insertion method includes setting in advance a reference value of a set position arrival timing in association with a set arrival position, regarding the set arrival position and the set position arrival timing at which a leading edge of the weft reaches the set arrival position, and determining an actual value of the set position arrival timing from the passage timing determined in weft insertion during weaving, comparing the actual value with the reference value, and in a case where a deviation occurs between the actual value and the reference value, determining a correction amount of a set value of a weft insertion related device based on the deviation so that the deviation decreases.
MANAGING A MANUFACTURING PROCESS BASED ON HEURISTIC DETERMINATION OF PREDICTED DAMAGES
A method, system and computer program product for a heuristic determination of in-process damage class control to manage expected output product category. The heuristic technique determines the predicted damages and their ranges while keeping the initial expected defects, the respective classes and range of defect and mitigation. The method dynamically computes a damage mitigation range of operation while being within the overall constraints and completes the computation in smaller number of loops being run at the edge computers so that the manufacturing equipment can operate at a higher velocity for higher quality of the output. The method includes a step of reducing error of the co-efficient and damage counts. An Internet of Things (IoT) based robot is used to mitigate the damages in the manufacturing steps to ensure that the output class of the product remains what was expected at the start despite damages and mitigation measures.
WEAVING MACHINE WITH DEVICE AND METHOD FOR DETECTING VARIATIONS IN PILE-FORMING
Disclosed is a weaving machine, including: a yarn tensioning system for keeping a pile-warp yarn under tension, including a local control unit, a drive motor Wand a drive roller; and a detection device for detecting abnormal variations in the pile-forming, including: a measuring system, for measuring, with the aid of the drive motor and the drive roller, pile-warp yarn consumption x.sub.m of the pile-warp yarn per cycle unit of one or more weft insertion cycles; a reference system, for determining for each cycle unit whether the pile-warp yarn is interlaced in a figure-forming manner and for determining the expected pile-warp yarn consumption x.sub.t; and a computing system, for comparing the measured with the expected pile-warp yarn consumption when the pile-warp yarn is interlaced in a figure-forming manner, and for detecting, on the basis of this comparison, abnormal variations.
In addition, disclosed is an associated method for detecting abnormal variations in pile-forming in a weaving machine.
CONTROL OF THE POSITIONING AND CONTINUITY OF THREADS IN A LOOM
A weaving installation (400) comprises a loom (100) for making a woven texture by weaving between a plurality of threads, at least part of the plurality of threads being carbon threads (210, 211, 212, 213, 214, 215), the carbon threads each being individually stored on one bobbin of a plurality of carbon thread storage bobbins (220, 221, 222, 223, 224, 225) present upstream of the loom. The installation further comprises a plurality of pairs of first and second electrical contacts (301, 302; 303, 304; 305, 306; 307, 308; 309, 310; 311, 312) present between the storage bobbins (220, 221, 222, 223, 224, 225) and the loom (100). Each pair of first and second electrical contacts is present in the path of a carbon thread, the first and second contacts of each pair being intended to be in electrical contact with a given carbon thread. The contacts of each pair of first and second contacts are further connected to an open-circuit detection circuit (230).
Nanoconductor smart wearable technology and electronics
A wearable, nanoconductor technology for smart electronic applications. A novel nano-scale geometry is achieved for nanoconductor circuits on the order of the size of a single thread or smaller, which are easily integrated with clothing and provide smart applications for wearable electronics. The nano-scale fibers provide improved material characteristics and the fixed geometry and orientation of the nanoconductor structures allow easier interface of nanoconductor electronics integrated with the clothing or with electronics external to the weave of the clothing. Novel electronic circuits based on the size and fixed geometries of the nanoconductor fibers which allow configurable functions that can be employed for different uses through logic circuit configuration or serial programming during wear are disclosed.
Weaving machine with device and method for detecting variations in pile-forming
Disclosed is a weaving machine, including: a yarn tensioning system for keeping a pile-warp yarn under tension, including a local control unit, a drive motor Wand a drive roller; and a detection device for detecting abnormal variations in the pile-forming, including: a measuring system, for measuring, with the aid of the drive motor and the drive roller, pile-warp yarn consumption x.sub.m of the pile-warp yarn per cycle unit of one or more weft insertion cycles; a reference system, for determining for each cycle unit whether the pile-warp yarn is interlaced in a figure-forming manner and for determining the expected pile-warp yarn consumption x.sub.t; and a computing system, for comparing the measured with the expected pile-warp yarn consumption when the pile-warp yarn is interlaced in a figure-forming manner, and for detecting, on the basis of this comparison, abnormal variations. In addition, disclosed is an associated method for detecting abnormal variations in pile-forming in a weaving machine.
Fixed orientation weaving apparatus
A shuttleless weaving loom with a weft insertion device. A transfer device and retaining disc are connected to the weft insertion device such that the retaining disc holds the weft fiber in a fixed orientation as it traverses through the shed of the loom. A plurality of sensors which are part of a microcircuit are mounted on the retaining disc for measurement of the weft fiber's position. A signaling circuit is mounted on the shuttleless loom and an electrical connector is connected to the signaling circuit to allow for external monitoring or display of the weft fiber's position. The measurements from the plurality of sensors are communicated through the electrical connector to an external device such that the position and orientation of the weft fiber can be monitored or displayed as the weft insertion device travels through the shuttleless loom.
WEFT INSERTION METHOD AND DEVICE IN WATER JET LOOM
A weft detection sensor is provided that detects a passage of a weft to determine a passage timing of a weft circulating around a storage drum, and a weft insertion method includes setting in advance a reference value of a set position arrival timing in association with a set arrival position, regarding the set arrival position and the set position arrival timing at which a leading edge of the weft reaches the set arrival position, and determining an actual value of the set position arrival timing from the passage timing determined in weft insertion during weaving, comparing the actual value with the reference value, and in a case where a deviation occurs between the actual value and the reference value, determining a correction amount of a set value of a weft insertion related device based on the deviation so that the deviation decreases.
Method for controlling the consumption of yarn in a weaving process
A textile machine receives a plurality of yarns from respective feeders, each provided with a control unit that calculates, for each garment produced, the amount of yarn consumed (YCmeas) and compares it with a reference consumption value (YCref). If the difference exceeds a preset limit value (% max) that indicates an anomaly, then an alarm is generated. Periodically, the control unit calculates an average consumption value (YCmed) on the basis of a preset number (Nmed) of already-finished garments, and compares it with the reference consumption value (YCref). If the difference exceeds a preset threshold value (% maxmed), then the reference consumption value (Yref) is set to the average consumption value (Ymed).
Fixed orientation weaving apparatus
A weaving apparatus comprising a shuttleless loom with a weft insertion device. A transfer device and retaining disc are connected to the weft insertion device such that the retaining disc holds the weft fiber in a fixed orientation as it traverses through the shed of the loom. A plurality of sensors which are part of a microcircuit are mounted on the retaining disc for measurement of the weft fiber's position. A signaling circuit is mounted on the shuttleless loom and an electrical connector is connected to the signaling circuit to allow for external monitoring or display of the weft fiber's position. The measurements from the plurality of sensors are communicated through the electrical connector to an external device such that the position and orientation of the weft fiber can be monitored or displayed as the weft insertion device travels through the shuttleless loom.