LNS Sprint 545 S2, Instruction Manual

Page: 86 / 114

8-14 CHAPTER 8: HANDLING
SPRINT 545/565S2
4.2.1. Part adjustment
Shape and diameter of the bar, length of the part
Bar profile
Round bar:

Outside diameter
Standard loading cycle
Hexagonal / square bar:

Size on flat sides

Size on corners

Front rest elements
This parameter must be defined when the standard elements of
the pneumatic front rest have been replaced with elements
specific to profiled bar guiding (elements with round inner
profile).
The bar feeder looks for this parameter to adjust the pneumatic front rest.
During the loading, the bar feeder tries several times (during 2 minutes) to introduce the bar in the gripper
or the lathe jaws. The precision of the positioning is also ensured by a procedure specially dedicated to
profiled bars.
Introduce the diameter of the bar to be loaded
It is important, that, for each production changeover, the diameter of the new bars that the bar feeder will
have to load is updated in the parameters. The PLC can therefore take it into account, and adapt the
torque (push force) of the pusher. A greater precision of the positioning may therefore be guaranteed.
Furthermore, small diameter bars will not be under the pressure of the pusher. The adjustment of the
closed position of the front rest and the position of the motor of the bars magazine are determined by this
value.
Introduce the diameter on edges of the profiled bars (option)
This function only serves to adapt the front rest to the edge diameters.