Individual in ring spinning spindle appeared after the roving bending phenomenon, and some appear the rainbow phenomenon, is generally change new varieties or flat to wipe the car change pin frame and the rubber roller, using the zone draft after analysis of the failure, take this cop do weight contrast test, no obvious difference.
Roving bending and analysis of the causes and solutions for the rainbow is as follows:
1. Cradle pressure fails, the central rubber roller and roller to article must decrease grip strength, reduce drafting force, resulting in the article after spinning area shall be the bending phenomenon.
Solution: check whether cradle pressure meet the process requirements, compression spring elasticity is reduced, whether is consistent, whether the cradle looseness, deformation, etc., if can not meet the requirements need to change or cradle pressure spring.
2. The upper roller is short of oil and rust, rubber roller rotation is not flexible.
Solution: shorten the repair cycle, timely refueling or replace the upper roller.
3. The spring elastic apron tension decreases, and aprons is flabby, aprons cannot (iron shell) and upper middle roller, roller in synchronous operation, cause after area must be bending.
Solution: check pressurized apron tension, timely replacement of spring.
4. Iron plate on the pin deformation or skew, aprons steering resistance, rotary is not flexible, cause after area must be bending.
Solution: to strengthen the maintenance and replace defective in time on the pin.
5. In the pin, aprons on product flower, linter, aprons caused tension change caused by.
Measures: strengthen the Tours of inspection, found the problem, handle in time.
6. Aprons and the roller sliding, aprons to use time is too long, inner circle is smooth, and the friction between the roller is smaller, and Laura run skid.
Solution: replace the new aprons in time.
7. Area after the draft is too small, cause after area must be bending.
Solutions: to draft the appropriate areas after amplification.
8. Aprons stiff. New aprons for a long time in low temperature environment, aprons stiff, get on the bus, aprons rotation is not flexible, and beating, cause after area must be bending. Aprons after aging, aprons harden and rotation is not flexible, cause after area must be bending.
Of solution: the new car should be placed in the spinning environment for a period of time, make the temperature of the aprons and the spinning temperature reached agreement. For aging aprons to timely replaced.
