Research On The Cutting Machine For The Printed Scarf

Cutting is an important link in the production of printed scarf. With the logo printed and other processes come to robotization, the overall production efficiency needs to be further enhanced. The research of a cutting machine for printed scarf is in a ungent.Paper made a detail of how to design the control system of the cutting machine. The system was composed of a Microcontroller and a DSP. The Microcontroller completed the management and coordination of the crew, which included two parallel DSPs who handle the digital signal processing. There will be a combination of flexible control and a powerful processing. The system fully played the advantages of the two kinds of processors. The operators can control panel to decide the working status. The top MCU passed this status information onto DSP. DSP received the information and corresponded the status to the implementation of the operation. At most of the time, under-bit DSP was working in cutting operation. The image on the printed scarf was obtained and processed.The outcome of the porcess determined the cutters' position to complete cutting .Paper resovled three problems:(1) The acquisition and storage of the image: By the combination of hardware and software-driven, linear CCD output the voltage corresponding with the image's brightness. The capacity of image data was expansion by a SDRAM memory;(2) The processing of image information: The first image on the scarf was desl with Canny edge algorithm as a template. With the Canny algorithm and the normalization inter-related algorithm, DSP search the new image in the template and traced the cutting edge of the new image to achieve the accurate cutting.(3) The management and control of the working state: The control panel was designed. And manipulation of the system came to an easy way. MCU sent the command to DSP module through the serial port to control them.The DSPs will upload the template to MCU.In this paper, the cutting machine's hardware design and software debugging are completed. The image processing algorithms were simulative debugged in the Visual C++ environment and tested in the CCS with the actual DSP environment. Paper introduced system's overall design concept, the functional modules of the hardware and software design in five chapers. The research achived the cutting control algorithms both in theory and practice. It will be applied in a wide range of the industrial field.