The Experts below are selected from a list of 2595 Experts worldwide ranked by ideXlab platform

Xiaoguang Wu - One of the best experts on this subject based on the ideXlab platform.

  • Design of Yarn Tension System and Jacquard Knitting Machine
    Proceedings of the 2014 International Conference on Mechatronics Control and Electronic Engineering, 2014
    Co-Authors: Xiaoguang Wu
    Abstract:

    In view of high fault rates of tension control system in the traditional circular Knitting Machine, this paper proposes and develops one kind of monolithic integrated circuit yarn tension control system. By using the FTA method to analysis systematically each kind of trouble cause in yarn tension system, and analysis influencing reliable factor of real-time control system, established fault tree the circular Knitting Machine tension control system. Based on the MCU technology, the sensor network in the program is constituted by ordinary sensor node, the sink node and network coordinator, and responsible for acquiring and transmitting condition information of circular Knitting Machines. The tension control system has been entered experiment movement with good performance, it is indicated that the this study is benefit to enhance the reliability of yarn tension system. Keywords-Yarn tension; Jacquard Knitting Machine; MCU design; Control System; Tesnsion Parameter

  • Control Data Preparation of Computerize Flat Knitting Machine
    Advanced Materials Research, 2012
    Co-Authors: Chi Zhang, Xiaoguang Wu, Cheng Jun Zhang
    Abstract:

    In order to realize the conversion from computer flat Knitting Machine design pattern to control data, a kind of control data preparation method in development of computerize flat Knitting Machine is introduced by this paper. This method has five parts, including of PAT data, CNT data, SYS data, KSD data, and FKD data. This paper illustrates the function of all the data documents and data definition, and give the FKD data conversion algorithm. Most existing pattern of design software flat Knitting Machine process files can be compatible by this method. FKD data conversion algorithm has small burden of data to control system. FKD data transmission is compact and can be quickly applied in all kinds of master-slave type of computer Knitting Machine control system. This design has applied to computerize flat Knitting Machine controller with stability of processing data and excellent performance.

  • Pattern data acquisition for high-speed electronic jacquard circular Knitting Machine
    2009 International Conference on Mechatronics and Automation, 2009
    Co-Authors: Cheng Jun Zhang, Xiaoguang Wu
    Abstract:

    High-speed electronic jacquard circular Knitting Machine was recognized as a green Machine to protect environment. It can easily produce any kind of pattern on cloth without pollution, while the printing and dyeing cloth technology may produce wastewater, which hardly polluted the environment. A new electronic jacquard technology has replaced the traditional printing and dyeing technology. A control system must be researched to satisfy the high-speed jacquard circular Knitting Machine. This paper introduced the control system structure and the organization of the pattern data, tested the pattern data accuracy by feedback acquisition system, and used Electronic Design Automation (EDA) technology implemented the production of the acquisition system, emulated the time sequence accuracy by EDA professional software, and tested the frequency of the pin selector. The result is that the pattern data organization and acquisition testing and implementation have offered the theoretical foundation for the production of control system.

Le-ping Xu - One of the best experts on this subject based on the ideXlab platform.

  • CIS (2) - The Design for Warp Knitting Machine Traversing Control System Based on DSP
    2009 International Conference on Computational Intelligence and Security, 2009
    Co-Authors: De-jun Li, Le-ping Xu
    Abstract:

    On the basis of in-depth study of warp Knitting Machine traversing control system, this paper designs a warp Knitting Machine traversing electronic control system based on digital signal processor (DSP). This system takes a three-phase permanent magnet blushless linear DC motor (LPMBDCM) as main subject and uses DSP as the control center. Thereby, it designs a practical electronic guide bar shogging mechanism. The emphases of this paper are explaining the hardware circuit and the system software, including linear motor driver, position detection, and speed current closed-loop detection and so on.

  • The Design for Warp Knitting Machine Traversing Control System Based on DSP
    2009 International Conference on Computational Intelligence and Security, 2009
    Co-Authors: De-jun Li, Le-ping Xu
    Abstract:

    On the basis of in-depth study of warp Knitting Machine traversing control system, this paper designs a warp Knitting Machine traversing electronic control system based on digital signal processor (DSP). This system takes a three-phase permanent magnet blushless linear DC motor (LPMBDCM) as main subject and uses DSP as the control center. Thereby, it designs a practical electronic guide bar shogging mechanism. The emphases of this paper are explaining the hardware circuit and the system software, including linear motor driver, position detection, and speed current closed-loop detection and so on.

James Mccann - One of the best experts on this subject based on the ideXlab platform.

  • visual Knitting Machine programming
    ACM Transactions on Graphics, 2019
    Co-Authors: Vidya Narayanan, Kui Wu, Cem Yuksel, James Mccann
    Abstract:

    Industrial Knitting Machines are commonly used to manufacture complicated shapes from yarns; however, designing patterns for these Machines requires extensive training. We present the first general visual programming interface for creating 3D objects with complex surface finishes on industrial Knitting Machines. At the core of our interface is a new, augmented, version of the stitch mesh data structure. The augmented stitch mesh stores low-level Knitting operations per-face and encodes the dependencies between faces using directed edge labels. Our system can generate knittable augmented stitch meshes from 3D models, allows users to edit these meshes in a way that preserves their knittability, and can schedule the execution order and location of each face for production on a Knitting Machine. Our system is general, in that its knittability-preserving editing operations are sufficient to transform between any two Machine-knittable stitch patterns with the same orientation on the same surface. We demonstrate the power and flexibility of our pipeline by using it to create and knit objects featuring a wide range of patterns and textures, including intarsia and Fair Isle colorwork; knit and purl textures; cable patterns; and laces.

  • automatic Machine Knitting of 3d meshes
    International Conference on Computer Graphics and Interactive Techniques, 2018
    Co-Authors: Vidya Narayanan, Lea Albaugh, Jessica K Hodgins, Stelian Coros, James Mccann
    Abstract:

    We present the first computational approach that can transform 3D meshes, created by traditional modeling programs, into instructions for a computer-controlled Knitting Machine.

Cheng Jun Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Control Data Preparation of Computerize Flat Knitting Machine
    Advanced Materials Research, 2012
    Co-Authors: Chi Zhang, Xiaoguang Wu, Cheng Jun Zhang
    Abstract:

    In order to realize the conversion from computer flat Knitting Machine design pattern to control data, a kind of control data preparation method in development of computerize flat Knitting Machine is introduced by this paper. This method has five parts, including of PAT data, CNT data, SYS data, KSD data, and FKD data. This paper illustrates the function of all the data documents and data definition, and give the FKD data conversion algorithm. Most existing pattern of design software flat Knitting Machine process files can be compatible by this method. FKD data conversion algorithm has small burden of data to control system. FKD data transmission is compact and can be quickly applied in all kinds of master-slave type of computer Knitting Machine control system. This design has applied to computerize flat Knitting Machine controller with stability of processing data and excellent performance.

  • Pattern data acquisition for high-speed electronic jacquard circular Knitting Machine
    2009 International Conference on Mechatronics and Automation, 2009
    Co-Authors: Cheng Jun Zhang, Xiaoguang Wu
    Abstract:

    High-speed electronic jacquard circular Knitting Machine was recognized as a green Machine to protect environment. It can easily produce any kind of pattern on cloth without pollution, while the printing and dyeing cloth technology may produce wastewater, which hardly polluted the environment. A new electronic jacquard technology has replaced the traditional printing and dyeing technology. A control system must be researched to satisfy the high-speed jacquard circular Knitting Machine. This paper introduced the control system structure and the organization of the pattern data, tested the pattern data accuracy by feedback acquisition system, and used Electronic Design Automation (EDA) technology implemented the production of the acquisition system, emulated the time sequence accuracy by EDA professional software, and tested the frequency of the pin selector. The result is that the pattern data organization and acquisition testing and implementation have offered the theoretical foundation for the production of control system.

Thomas Gries - One of the best experts on this subject based on the ideXlab platform.

  • industrie 4 0 automation in weft Knitting technology
    Microelectronics Systems Education, 2016
    Co-Authors: Kristina Simonis, Yves-simon Gloy, Thomas Gries
    Abstract:

    Industry 4.0 applies to the Knitting industry. Regarding the Knitting process retrofitting activities are executed mostly manually by an operator on the basis on the operator's experience. In doing so, the knitted fabric is not necessarily produced in the most efficient way regarding process speed and fabric quality aspects. The Knitting division at ITA is concentrating on project activities regarding automation and Industry 4.0. ITA is working on analysing the correspondences of the Knitting process parameters and their influence on the fabric quality. By using e.g. the augmented reality technology, the operator will be supported when setting up the Knitting Machine in case of product or pattern change - or in case of an intervention when production errors occur. Furthermore, the RFID-Technology offers great possibilities to ensure information flow between sub-processes of the fragmented textile process chain. ITA is using RFID-chips to save yarn production information and connect the information to the fabric producing Machine control. In addition, ITA is currently working on integrating image processing systems into the large circular Knitting Machine in order to ensure online-quality measurement of the knitted fabrics. This will lead to a self-optimizing and selflearning Knitting Machine.

  • Construction of a Carbon Fiber Reinforced Weft Guide Bar for a Crochet Knitting Machine
    Journal of Mechanical Design, 2014
    Co-Authors: M. Beer, Yves-simon Gloy, Mohit Ajitkumar Raina, Thomas Gries
    Abstract:

    The crochet Knitting Machine is a warp Knitting Machine with a weft insertion system placed on a weft guide bar. On standard Machines, the weft guide bar is made from aluminum and weighs about 570 g. The single-drive motors, which power the bar, account for 15–20% of the Machines total power consumption. The aim of this research was to reduce power consumption by decreasing the mass of the weft guide bar. This was done by constructing the bar from carbon fiber reinforced plastics rather than aluminum, resulting in a mass saving of 260 g.

  • OPTIMISATION OF THE WARP YARN TENSION ON A WARP Knitting Machine
    Autex Research Journal, 2012
    Co-Authors: Vivienne Pohlen, Andreas Schnabel, Florian Neumann, Thomas Gries
    Abstract:

    Investigations (calculations) based on a warp yarn tension analysis on a warp Knitting Machine with multiaxial weft yarn insertion allow prospective reduced yarn tension differences in technical warp knits. From this a future opportunity is provided to substitute the subjective warp let-off adjustment by a model of tension control. The outcome of this is a higher reproducibility with associated increasing process reliability and rising product quality .