Carding is the heart of spinning. We say: “Only if you comb well can you spin well.” The cylinder and cover plate play the main carding role in the fiber processing process, and in addition to carding, the cover plate At the same time, it is also responsible for the functions of removing impurities and short lint. The condition of the cover card clothing directly affects the impurity removal efficiency of the carding machine.
In the four carding needles, the cover plate work must be done first, including the clamping of the cover plate card clothing. , control root deviation, flatness, etc. Secondly, the work of the licker-in should be done well, including the correction of the eccentricity of the licker-in cylinder, the short-cycle replacement of the licker-in card cloth, etc. The licker-in work is relatively easy to do well, and the effect is more obvious. .
I have investigated many spinning mills and found that the condition of the cover card clothing is very poor, and some even have short service life. By the time the cover card clothing is used for one year, the entire needle tip has been ground flat, leaving only a flat steel wire. However, these companies think that the replacement period has not yet come, and they think that the card clothing is in good condition, but in fact, the card clothing like this has no sharpness at all, and the carding quality has also been greatly reduced.
So, why does the flat card clothing experience abnormal wear? How can we avoid abnormal wear of the flat card clothing during flat maintenance? The following points should be noted:
| Abnormal wear of pin connectors:
(1) Cover The heel and toe surfaces of the plate bones are severely worn, and the distance between the cylinder cover plates is too small, causing the cylinder cover plates to connect to the pins and accelerating the wear of the tooth tips of the cover plates.
(2) The tensile strength of the cover chain is insufficient, and it may elongate, break, deform, wear, etc., causing the cylinder cover plate clothing to connect to the pins and accelerate the cover plate tooth tip. wear and tear.
(3) The cover screws and the chain are not suitable. The screws are stuck in the cover chain, causing the cover to float. Long-term operation will accelerate the heel and toe surface of the cover. The curved rail surface is worn, causing the cover plate clothing pins to wear.
(4) The star-shaped guide plate of the rotary cover plate has serious accumulation of flowers, which squeezes the pins between the cover plate and the cylinder, causing the tooth tips of the cover plate to wear.
| Other abnormal wear:
(1) Cover plate After being covered with card clothing, the flatness is poor and the table difference is large. Excessive dressing and grinding will accelerate the wear of the tooth tips of the cover plate.
(2) The brush roller card cloth model does not match, the brush roller and cover plate technology is not in place, the brush roller card cloth is in poor condition, the fibers are entangled, and the cover plate flower cannot be cleaned repeatedly. , causing the tooth tips of the cover to wear.
(3) The installation accuracy of the carding machine is poor, and the cover plate, front and rear cover plates, and front and rear protective covers are scratched, causing the card clothing of the cover plate to wear.
(4) The chopping blade of the old model was poorly adjusted, scratching the cover plate clothing, causing damage to the tooth tips, etc.
The maintenance of card clothing is a very important task, which directly affects product quality. In daily production and card clothing maintenance , special attention should be paid to the above phenomena that may easily cause abnormal wear of the flat card clothing, so that the flat card clothing can be well protected and play its due role and level. </p
