With the development and advancement of science and tec […]
With the development and advancement of science and technology, especially the rapid development of high-tech such as mechatronics, motor technology, electronic control, hydraulic transmission, and people's pursuit of high-efficiency, high-grade products, several electronic combs have appeared. Move the mechanism.
SU is an electronic bar traversing mechanism developed by Karl Mayer of Germany in 1979. Now the SU traverse mechanism is widely used in multi-comb warp knitting machines (early used for 4-comb and 5-comb Tricot warp knitting machines) ). It is a digital traverse mechanism controlled by an electronic computer. The original workload of several hours can be completed in a few minutes, which greatly improves the production efficiency; the mechanical accumulation operation is completed by computer, and the traverse accuracy is high. . Each time, the SU traverse mechanism traverses the maximum stitch back to 16 stitches, and the cumulative maximum stitch back traverses 47 stitches, which can weave a glamorous pattern, greatly enriching the development space of warp knitting products. According to Karl Mayer, there are currently more than 40,000 SU traverse mechanisms in the world for lace production. It should be said that the SU device is a milestone in the history of the development of the bar traverse mechanism.
The SU bar traverse mechanism is an electromechanical system that controls the flower comb by means of a sliding assembly and controls the sliding assembly by means of electromagnetic elements so that the traverse distance can be formed according to a defined path. It consists of a set of eccentricity and sliders. The slope of the slider is designed according to the simple harmonic motion curve, which makes the rotor movement smooth and reliable. It usually has 6 to 7 eccentricities. Generally, as long as six eccentricities are arranged, for a lace machine with a yarn pressing device, since the yarn comb needs a needle front yarn, it is necessary to configure an eccentricity. The above six eccentricities are responsible for the needle-to-back traverse movement of the flower bar, and the seventh auxiliary eccentricity causes a needle traverse before the control flower needle. The machine weaves a row, the eccentric wheel rotates half-turn, so that the front stitches of the rows of the needles are one to the left and one to the right. For the six eccentric traverse mechanisms, there are 7-slope beveled sliders, each of which is slippery. The bevel of the block forms two thicknesses of different widths and widths, and the two sliders are separated by the head end rotor of the eccentric sleeve.
When the eccentricity and the roller are backward, the roller acts on the narrow end, and the slider group contracts. When the eccentricity is forward, the roller moves to the wide section to stretch the slider group. Above the slider set there is a horizontal bar that acts on the bar through the vertical bar. The slider group is stretched to move the bar backwards, whereas the return spring causes it to the left and close the slider. The difference in the thickness of the gap between the ends of the slider at each roller is not equal, which is an integral multiple of the stitch length. The eccentricity is moved to the left in a certain combination, and the cross-motion movement of the yarn guide combs caused by the respective sliders is superimposed, and the strokes of various stitch lengths can be obtained.