Research And Development Of Level Cut And High-Low-Loop Pile Tufting Machine Control System

Computer Control Tufting Machine (CCTM) is currently used in textile industry more and more popularly. Compared with traditional tufting machine, CCTM reduce pollution and produces higher quality carpet mate. For lacking of CCTM control system, many CCTMs have to be imported with high price and potential maintenance inconvenience. This greatly restricts the market competency of domestic textile factories. For that, this paper presents the research and development of Level Cut and High-Low-Loop Pile Tufting Machine Control System (LCHLTMCS). This research may have not only theory significance but also practicality value.Firstly, this paper summarizes the status quo of LCHLTMCS at home and abroad and expatiates the importance of researching and developing LCHLTMCS. After that, the blue print of control system is put forward. In the blue print, Industry PC (IPC) acts as upper computer, MCU as a core of lower computer, and transducer and PLC as accessory. Based on the analysis of Level Cut and High-Low-Loop Pile Tufting Machine machinery principle, the blue print of control system is designed. The software architecture, lower computer subsystem and functions of control system are all detailed.Secondly, some key technologies are studied. The method of bitmap file in upper computer is proposed. Process of communication between upper computer and lower computer is detailed. The kernel PCB design of lower computer system is also presented. Besides, potential interferences for control system and some measurements are discussed.Finally, this paper presents the control system interconnection and the test of control system assembled on tufting machine. The test results make clear that the control system reach the target of design.At present, tufting machine (TM) with the control system has successfully run in some carpet factory. The development and research of LCHLTMCS may have reference value to develop other similar system and improve the level of equipment technology in domestic carpet factories.