タイトルまたは説明
1. Drum type upper roll with
the adjusting function of the supporting roll of lower roll to
ensure the high precision linearity of rolling
workpiece.
Use
drum type upper roll structure whose preset value is *0% of roll
uniformly
distributed
loading.
Small diameter of lower roll with the supporting roll which can be
adjusted up and downï¼›According
to the loading of rolling workpiece, adjust the supporting roll
under lower roll to improve the linearity of rolling
workpiece.
2.
Rear rolling & high precision roundness of
workpiece
The
machine rolls workpiece at the back, that is the plate feeding
direction and rolling direction of upper roll is on the contrary.
The upper roll presses down, meanwhile the lower roll rotates so as
to roll plate continuously. The plate material end is pre-bent
directly under pressure to avoid the occurrence of front part
bending relief angle, and control the length and shape of remained
straight side. Comparing with 3 roll asymmetric mechanical
rolling machine, 3 roll asymmetric mechanical rolling machine bends
the plate in the front, it firstly pre-bends the plate at the both
ends of plate, then rolls the plate symmetrically. Relief angle is
easy to happen for the rolled workpiece, and shape of remained
straight side could not be controlled. Otherwise 3 roll asymmetric
mechanical rolling machine needs the experienced operators to
operate
3.
Reduce the misalignment of workpiece.
Upper
Roll Universal Plate Rolling Machine takes the following measures
to reduce the misalignment of workpiece.
1)
Strictly control the quality of two lower rolls processing
precision, centering distance between two lower rolls and their
geometrical production specification.
2)
Electrical-hydraulic synchronization
of upper roll uses feedback system and upper roll can be leveled
automatically.
Stroke
of upper roll oil cylinder is measured by rotary encoder.
Controller compares the high and low level output and transmits
them to PLC to control solenoid
directional
valves
of two sides of upper rolls.
