1. Assembling the Traverse Unit On the Shaft.
Adjust pitch setting to maximum. Insert One end of the Shaft in to the traverse unit slowly and rotate the shaft . By rotating the shaft traverse unit moves on the shaft . Removing the unit from the shaft. The unit can be removed from the shaft by rotating the shaft in opposite direction.
2. Direction of Shaft Rotation and how to modify traverse unit to suit required direction of rotation of shaft.
The reversal mechanism is dependent on direction of shaft rotation .For reversal mechanism to operate shaft has to be rotated in correct direction of rotation.
Correct direction of rotation shaft â€?When shaft is rotated in correct direction the bearing end of the Reversal lever points towards the direction movement of the unit. If this is not the case the reversal mechanism can be altered as described below. Traverse unit can be easily modified for clock wise or anti clock wise direction of rotation of shaft without opening the traverse unit . Refer fig 7 and fig 8 .
Method: The Reversal mechanism is removed, and refitted with a 180 degree turn of the reversal lever
1. Remove Striker plate, Reversal lever, Springs and Release lever of the Reversal Mechanism
2. The Striker plate is refitted on opposite side.
3. The Reversal lever is refitted with a 180Â° turn
4. Re fit Springs and Release lever
5. Ensure that the lug of spring is not getting bend
Traverse units are normally supplied Top Towards ( TT ) for clockwise direction of rotation ,unless specified.
3.Traverse Pitch ( Linear speed):
The pitch / linear speed can be finely varied by moving the pointer on dial . Avoid running the traverse unit below Setting '1' for accuracy .
Max Pitch (h max) given in Table 1 is the movement of traverse unit for one rotation of the shaft. Traverse shaft speed required is calculated considering the required pitch range or linear speed .
For applications where minimum to maximum pitch ratio exceeds 15:1, traverse shaft may be provided with two speeds for accuracy and fine control.
4. Calculating the Required Shaft Speed:
a. Required Shaft RPM = Maximum Linear speed required / Max pitch of traverse unit used (hmax).
For winding application Recommended Speed ratio K opt between spool shaft to traverse shaft
Traverse shaft drive is provided from bobbin drive shaft for automatic speed synchronization during diameter build up .
Kopt = Dr/Ds = 0.95 x max pitch of traverse unit / max pitch required for the application. Dr = Traverse shaft pulley dia and Ds = spool shaft pulley dia
5. Mounting Guide Assembly on top of Traverse Unit:
Mount Guide assembly on top of Traverse unit. where 4 no tapped holes are provided.
Refer dimension N ,Table 2 for insertion depth of mounting screws .Excess length bolt will cause difference in linear speed and malfunctioning of traverse unit.
The weight of guide assemblies mounted directly on the Traverse unit may be reduced to minimum possible to maintain accuracy at reversal points.
When heavy guide assemblies are to be used or when the tension / twisting forces in the material to be traversed is huge or when there is large overhang for the guide assembly , a load carrier with linear bearing / LM blocks is recommended .
6. Winding on Conical / BI â€?Conical spools / Tapered winding .
For tapered winding / Winding on Conical or Bi â€?Conical spools, self-adjusting end stops are provided. End limit position is altered during winding as required using small motor and PLC.
7. Traversing The Bobbin
Traverse unit will be stationary and Shaft will be traversing along with mounting assemblies with drive motor and Bobbin . LM block and rail is used for supporting the weight of machine . See Video