Rapid-Air STRAIGHTENER / RAPID-ROLL: SA3 - SD with compact control - Manual (Page 35)


OPERATION
For set up only, place a short length
of stock about four feet on the
bottom rolls, between the pinch rolls.
Set the entrance guide rolls before
lowering the cover. Make sure the
top rolls are retracted to prevent
stock deformation. Apply light pinch
roll force on the stock to insure
adequate assisting pulling force on
the stock and to prevent slippage of
the stock over the straightener rolls.
never overload the pinch rolls. This
could damage the stock by extrusion
causing permanent deformation.
With the cover down and the stock in
place, position the idler rolls such that
they are mid-way between the drive
rolls. The windows in the side of the
cover are visual indicators of the idler
rolls relative position to the drive rolls.
Do not lock the cover down at this
time. With the cover held down firmly
by hand, lower the vertical entrance
knob until the first idler roll contacts
Straightener Sa3 - Sb4
the stock with only slight deformation
(crease) at the station. observe the
degree of deformation at this first sta-
tion by lifting the cover and noting the
pattern of light reflecting off the stock
surface. Rotate the vertical entrance
knob 1/4 turn down and lock in place.
Close the cover, hand hold in place
while lowering the exit knob. Continu-
ously observe the changing deforma-
tion pattern until all but the last station
reflects a change. The stock should
reflect a diminishing deformation
pattern until the final set of exit rolls
afford no deformation. Lock the exit
knob. Close the cover and latch.
The dancer arm position for height
and range is operator selectable
through the settings of thumbwheels.
The speed of the straightener rollers
is automatically controlled by the
position of the dancer arm. As the
dancer arm is raised, the straight-
ener rollers increase in speed. This
minimizes starting and stopping and
resultant stock deformation.
CAUTION: Lateral adjustment, gener-
ally, requires no more than two or three
turns either side of center. never
force idler rolls against the powered
rolls. This will deform the stock.
CAPACITY
The model SA3 is designed for 3”
maximum width and .005 to .020
thick material. The SB4 is designed
for 4” maximum width and .007 to
.035 thick material. The maximum
feed rate for SA3 and SB4 is 700
inches per minute. The maximum
feed rate for SAM3 and SBM4 is
1400 inches per minute.
ELECTRIC MOTOR
SA3 and SB4 straighteners are
furnished with a 1/4 HP - 2500 RPM
permanent magnet motor. input
power is single phase, 115 volt A.C.
rotation must be CW as viewed from
shaft end. SAM3 and SBM4 have
a 1/2 HP motor.