织造机械复习题（Review of weaving machinery）.docVIP

织造机械复习题（Review of weaving machinery） 1 the five basic mechanisms of a loom Shedding mechanism; weft insertion mechanism; beating mechanism; crimp mechanism; warp feeding mechanism 2 what is the function and requirement of winding and winding process? The process of winding yarn, skein, etc into various forms Action (1) change the form of the coil, capacity (2), remove part of the defect Requirements (1) the winding of the package is firm, stable and well formed (2), the capacity of the coil is as large as possible and the requirement of fixed length is met (3) the winding tension is proper and uniform, without damaging the original physical and mechanical properties of the yarn (4) as far as possible to remove harmful yarn defects (5) the knot of the yarn is small and firm What are the main technological parameters of the 3 winding tube? Winding speed, guide distance, form and process parameters, tension device type and process parameters, header specifications, bobbin winding density, winding length and so on What are the main anti stack measures adopted on the 4 winder? (1) periodically change the speed of the drum (intermittent switching type and variable frequency motor speed regulation); (2) the oscillating arm of the creel is moved or swung by the periodic axis of the earth; (3) the anti stack groove is adopted to make the center line of the groove twisted at the left and the right, and the hollow groove or the groove of the right angle groove is adopted by using the false lines or the broken lines. What are the winding forming methods in the 5 winder? The winding of the cheese is made by friction, transmission, winding and spindle drive. The characteristics of friction drive winding: short fiber yarn, bobbin adoption. The drum by the motor drive, the installation arm on the bobbin pressed on the grooved cylinder in the cylinder ingot, by relying on the role of friction of the grooved drum revolving, the yarn winding grooves; the surface of the drum as the yar