subject: It Is A Question Of Enterprises That Are Specialized Directly [print this page] To special automatic embroidery machines can be attributed the machines using not quite standard embroidery methods, machines that are able to perform embroidery on out-of-the-way places of complete products and on materials that are difficult for embroidery. To one of the most commonly used type of special automatic embroidery machines can be attributed the so called Schiffli, machines that allow making embroidery with the utilization of decorative cord, to cut through material and at the same time to process the cut by embroidery. These machines are mostly used for finishing of light and thin, translucent, fashioned and other smart cloth and articles made out of it. For instance, Schiffli machines are often used at wedding dresses decoration. Nowadays the leader in production of no-thread embroidery machines is the Japan Company Tanaka. In 2001 fashion show in Berlin and Paris were presented impressive collections made with the help of no-thread embroidery on Vari-O-Matic machine of this company. To universal automatic digitize machines are related the machines of lock-stitch with coordinate displaced frame holder which is meant for manufacture of embroidery with threads on classical and most widespread materials and articles. The use of such machines supposes some limitations in properties of used materials and constructions of complete products. But these limitations are constantly growing narrower due to constant modernization and improvement of universal automatic embroidery machines and due to use of manifold auxiliary facilities and special devices. All known universal automatic embroidery machines are of lock-stitch type of machines and the structure of many parts of the mechanism has many similarities with lock-stitch embroidery machines. Speed of embroidery. It is expressed through quantity of stitches per minute. The embroidery speed can be adjusted both manually and automatically while embroidering. The optimal embroidery speed of modern machines oscillates between 700-900 stitches per minute. Maximum speed reaches 1200-1400 stitches per minute. 4. Needle quantity. It is equal to the number of needles on one head. It is defined by maximal possible number of thread colors used at one run of embroidery. The possible needle number in modern machines is from 1 to 12. The most spread are the machines with 9 needles. Other important indexes are the noise and vibration level, the compatibility of machine with different standard embroidery programs, the presence of accessories, error of linear measurements of embroidery elements.
