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Circular loom maintenance
Source：http://www.zri8413.cn/en/supply/scsb/227.html
Date：2018-07-04
Description：Circular loom maintenance: Anomalies CauseTroubleshootingFabric to holes1. The warp or weft is broken, the joint is long, and a hole is caused2. The warp yarn is split, resulting in poor opening and weaving holes in the
Circular loom maintenance:
| Anomalies | Cause | Troubleshooting |
Fabric to holes |
1. The warp or weft is broken, the joint is long, and a hole is caused
2. The warp yarn is split, resulting in poor opening and weaving holes in the fabric
3. Silk thread with extra weak tension |
Cut the wire connector short
Eliminate wire splitting factors and check each threading
Find the weak tension warp and adjust the tension with the wire pressing hook |
The loom stops immediately when the warp is loose |
1. The wire pressing hook is not put on, and the wire has no tension
2. The warp threads of a pair of jumping poles are entangled with each other
3. The jumper spring is defective and the position is incorrect
4. Warp yarn feeding too fast
5. Warp yarn overlaps on the wire feed roller or other parts
6. The warp threads are disordered and intertwined. |
Find this wire and insert it into the wire pressing hook
Cut or remove the winding and rewire
Replace or repair springs
Slow down the wire feed roller speed
Correct threading position
Rethreading |
The density of weft yarn in normal weaving is
Suddenly become dense |
1. Upper traction roller failure, key falling off, coupling damage, reduction box
2. The worm gear is worn and the upper traction roller is not clamped tightly and slips.
3. The expander is too wide, which hinders the traction of the fabric and the upper traction roller cannot pull |
Check and repair the upper traction roller
Adjust the expander |
The fabric surface has standing hair |
1. Warp tension is too strong
2. The weft yarn tension is too strong
3. Insufficient strength of applied yarn
4. Incorrect position on the shuttle
5. The wire guide hole is not smooth
6. Flat yarn raising |
Increase the speed of the yarn feed roller
Adjust the shuttle tension brush to reduce tension
Replace qualified warp and weft yarns
Correctly load the shuttle
Inspection and repair
Replacement of tape |
Warp thread injury or
Split wire |
1. There are abnormal, rough objects stuck in the contact parts of the threading holes.
2. There are scratches on the shuttle body or shuttle side
3. The shuttle wheel does not rotate properly
4. The shuttle wheel and driven wheel do not rotate flexibly. Debonding, etc.
5. Improper fit on the shuttle
6. The quality of the applied silk thread is poor |
Check the warp threading holes and repair them
Smooth out the injured area
Repair bearings and other parts
Repair and Replacement
Reload the shuttle
Changing yarn |
Uneven fabric surface
There are vertical creases |
Warp arrangement cross
Uneven weft tension
Ring gauge without inner ring, advanced weaving
Expander too narrow
The upper traction roller is not clamped properly and there is foreign matter stuck on the roller.
Uneven tension of the jump rod |
Rearrange the warp
Increase weft tension
Add inner ring or increase top wheel diameter
Expand to the right position
Clean foreign matter from the traction roller
Adjust the tension of the jump rod |
Uneven fabric direction
There are horizontal creases |
Weft is too wide
The gear shifting is wrong
The shuttle guide wheel is not in the right position
Ring ship eccentricity |
Replace qualified weft
Replace the correct gear
Adjust the position of the shuttle guide wheel
Adjust the concentricity of the ring gauge |
Cloth roller direction
One side tilted |
The upper traction roller is not parallel
The cloth winding machine is not parallel to the main machine
The guide rollers of the fabric passing through the creel are not parallel
Insufficient winding tension |
Adjust the upper traction roller
Adjust the two parallel
Adjusting guide rollers
Slightly increase the winding tension |
Woven cloth fold diameter
Does not meet the requirements |
The weft tension is not appropriate
The shuttle guide wheel is not in the right position
The number of warps is incorrect
Inappropriate ring gauge size
Expansion plus expansion is too wide
Ring ship has no inner ring, flat wire is woven in advance
Flat wire is not fixed |
Adjust to appropriate weft tension
Adjust the position of the shuttle guide wheel
Check and arrange the number of warps reasonably
Replace the ring gauge with the appropriate size
Adjusting the Width of the Spreader
Add inner ring
Change flat wire |
| Anomalies | Cause | Troubleshooting |
| The host speed slows down |
The pulley is too loose or severely worn; the cam is lacking oil; the slider is damaged |
Tighten or replace the belt Check the oil supply of the upper oil pipe and the oil level of the chassis and replenish them Replace the slider |
| Working current is too large |
The bearing in the shuttle propeller is stuck; the oil pool is oil-free; the shuttle wheel is not flexible or the bearing is damaged; the slider is broken |
Clean and replace bearings; Check wear and replenish oil level ; Clean the shuttle wheel or replace bearings; Replace the slider |
There is noise when the shuttle is running |
Abnormal wear of the shuttle base plate; Loose screws fixing the shuttle base plate; Inflexible operation of the shuttle tube or loose tube; Lack of oil in a certain part of the transmission, especially the oil pool; Vibration in the palm fiber storage frame |
Adjust the position of the shuttle base plate Add glue to seal the screws Clean or replace the bobbin seat bearings, replace the worn bobbin seat Check and refuel Tighten the palm thread |
| Broken warp {broken wire} |
Low warp strength; Low ambient temperature or humidity ; Incorrect propulsion wheel position or inflexible operation; Inflexible rotation of shuttle tail wheel; Unclean small shuttle wheel; Burrs or defects on shuttle threading; Damage to shuttle propeller box ; Severe wear on shuttle arm ; Collapse or hanging of wire on bobbin |
Improve the strength of the yarn ; Increase the ambient temperature or humidity ; Adjust the position of the propeller or check the cause of the inflexible operation; Clean or replace the bearings ; Clean the small shuttle wheel; Check and polish the burrs or defects at the shuttle thread; Repair or replace the wear of the shuttle propeller box; Repair or replace the shuttle arm; Replace the yarn bobbin |
|
Uneven warp yarns Uneven wire laying |
The positions where the warp yarn passes are unevenly distributed on the circumference. The warp yarns on the jumper are unevenly distributed, the jumper is bent, and the tension spring is loose . The yarns passing through the palm frame are unevenly dense . The gate threading is dense and sparse. In the process from the warp yarn rack to the ring gauge, the warp yarns are crossed and entangled. The warp yarn axis is entangled and the quality is poor. There are pulled, dropped, and inconsistent tightness yarns. The warp yarn width is unequal |
Rethreading |
|
Broken weft, {broken weft line} |
The shuttle tube is not flexible. The wire brush pressure is too high. The shuttle wire guide wheel is not flexible. The weft wire strength is low. There are burrs on the shuttle arm through the wire hole. |
Clean or replace the shuttle barrel bearing; adjust the appropriate wire brush pressure; clean or replace the shuttle guide wheel bearing; improve the strength of the weft; repair, polish or replace the shuttle arm thread hole |
| The width of the woven fabric is uneven |
The shuttle tension brush is not properly adjusted. The tension brush is too dusty. The tension brush is entangled with the thread . The shuttle guide rollers are not properly adjusted. The shuttle rotating parts are damaged and stuck. The thread tension is uneven. The weft thread is not inserted correctly. |
Adjust the tension brush tension Remove dust Remove waste yarn Readjust Repair and replace Replace weft yarn Thread correctly |
