Design And Study Of New Photoelectric Abb Finishing Device

The development of modern science and technology information has put forward new requirements on the product quality of textile industry. It has become a necessity to improve and update all equipments in this industry. In the process of fabric dyeing and finishing, for various reasons, such as much traction influences of mechanical motion and production operation, there is often the situation of weft bend or skew. To ensure the quality of fabric printing and dyeing, correcting the deformation of weft by using the abb finishing apparatus must be done before the dyeing and printing. And the level of the final fabric product quality greatly depends on the quality of abb finishing apparatus. Currently, there is still some gap between the domestic weft equipment and the abroad, mainly reflected in detection accuracy, speed of response and other technical indicators. And the effect of weft adapting mainly depends on the precision of testing weft.In view of the domestic study in the system of automatic weft is also very limited, the paper goes on a depth research in the usage of photo-electric detector technology in the field of application of weft-adaptation, meanwhile, designs and studies a new type of optical-electric abb finishing apparatus based on embedded systems. The paper will go on with detailed analysis and discussion on the design and development process of this system. The paper focuses on this apparatus'effective improvements in detection accuracy, reaction speed and precision control.This design studies and uses a number of advanced and new design methods. First, we use current advanced photoelectric detection method in the detection part, and adapt new ideas of using the rotary slit detection head instead of traditional fixed slit detection. We process the weft inclined signal based on single chip, and realize the AD transfer through programs in internal of the single chip. We can go on with the effective and fast weft inclined detection on the fabric to supply timely and accurate information of weft inclined. Secondly, the central processing unit selected LPC2132 as CPU, and apply popular fuzzy control algorithm of current control area in weft control system, using the fuzzy mathematics theory to achieve the effective control on the implementing agencies to improve the web adaptation effect. In addition, the system has some following characteristics: the implementing agencies use the combination of straight and bending roller to increase the number of roller as much as possible and improve accuracy of correction; realizing AD transfer in the internal of single chip to save hardware cost; ARM of the processing unit and the next step system's single chip use serial communication based on Modbus protocol to improve system's reliability.The design is the system of signal processing and automatic control using ARM7-LPC2132 as core CPU. The system's skew detection accuracy is up to 0.25 degrees, achieving the desired function, basically meeting the system's requirements and adapting for complex woven fabrics. The weft inclined detection and correction of weft deformation can be fast and effective. Meanwhile, this paper also provides more perfect theory basis and design idea for further research and design of this system.