Common Faults and Troubleshooting Methods of Fine Wire Drawing Machine

Malfunction

Reason analysis

Elimination

Fine Wire drawing machine can’t work

1.The power switch is off

2.No reset when machine stop for wire break and length break

3.Emergency button is on

4.Inverter fault

1.Turn on power switch

2.Press WB reset or L reset

3.Turn off the emergency button

1.According to parameter on the inverter screen

and manual of the inverter, solve it.

2.Turn off the power switch, restart after 60s

Wire break frequently

1.Wrong dies arrangement

2.Too high speed

3.Bad raw material

4.Metamorphic lubrication

5.Burrs on the bobbin

6.Pay-off is not smooth

7.Too high pay-off speed

8.Sticky wire on capstan

1.Arrange die according to machine slip ratio.

2.Slowdown

3.Change raw material

4.Change lubrication

5.Use ethanol and sand paper to clean the bobbin

6.Adjust the position of pay-off stand

7.Enlarge inlet diameter or slowdown

8.Clean capstan by alcohol

Wire break at certain position

1.Wrong slip ratio

2.Wrong die size

3.The dies and guide wheel are not in the same line

1.Arrange die according to machine slip ratio

2.Repair or change die

3.Change the position of dies

Fine wire drawing machine tension not stable

1. Not enough counterweight

2. The fix speed wheel does not rotate flexibly

3. The precision resistor is displaced or damaged

4. PID rise time is too long

5. The parameters are not set properly

1. Adjust the counterweight and change the number of turns of the thread on the haul-off reel

2. Replace the wheel

3. Adjust the precision resistor or replace the precision resistor

4. Add FH15 parameters

5. Reset the parameters

Traversing not good

1. The width of the traversing is not adjusted properly

2. The limit switch is in poor contact

3. The cable guide wheel is damaged

4. The wire traversing is in a wavy shape

1. Adjust the traversing width

2. Replace the limit switch

3. Replace the guide wheel

4. Check the traversing guide wheel and traversing motor

Traversing motor does not turn

1. The Traversing motor is damaged

2. The contact of the Traversing circuit is loosened

3. The starting capacitor of the Traversing is damaged

4. The Traversing start resistor is damaged

1. Replace the traversing motor

2. Check the traversing circuit

3. Replace the capacitor

4. Replace the starting resistor

Outlet Wire scratches

1. The wire guide wheel is not good

2. The position of the eye mold and the groove of the capstan is not accurate

3. Grooving of capstan or guide wheel

4. Eye mold wear

1. Replace the guide wheel

Adjust the center of the eye mold and the groove of the capstan on the same line

3. Replace capstan and guide wheel

4. Replace the eye mold

Brakes not working

1. No braking when disconnected

2. Emergency stop without braking

3. Disconnection, emergency stop without braking

1. Shift the precision resistor, readjust the precision resistor, check the disconnection detection switch

2. The emergency stop switch is damaged or in poor contact; check the F3 fuse

3. Check whether the F3 fuse, bridge pile and brake are damaged

Scratches on the outlet

1. Scratch at the exit eye mold

2. Scratch outside the exit eye mold

3. The problem of drawing fluid

1. Check whether the mold is worn

2. Check whether the haul-off wheel, guide wheel, and each wheel are worn

3. Replace the wire drawing fluid