Machine Embroidery Designs (四)

The basic indexes of industrial embroidery machines1. 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. 2. Number of working heads. In modern multihead machines the head numbers come to 2-4 heads.3. The size of working area or the maximum size of used frame. This index is concerned with possible size of performed embroidery. It is expressed through correlation of length and width of the working area in millimeters and is regulated for flat and cylindrical frame (used for caps, sleeves, etc). There are spread the correlations 800x600, 500x400 and other-for flat frame; 360x75, 400x350 and other for cylindrical frame.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.The accessories can be presented through different additional hinged device for automatic let-off of decorative cord or ribbon, broadened control terminal, systems of laser and video navigation of working area, additional laser trimers (device for thread cutting) and other.The concomitant equipment can be presented through devices of embroidery evaporation, various press equipment for adhesive chevron and braid production, special cloth-cutting machine in the form of laser cutter-machines, that can automatically cut of or drift on markings on cloth, which is widely used at combined with embroidery applique’works production.