3M 3M-Matic 700rks, Instructions And Parts

Page: 22 / 72

17
Operation
(Continued)
Figure 3-4 – Air Regulator, Centering Guides
Figure 3-5 – Air Regulator, Upper Taping Head Frame
3 Emergency Stop Switch
The machine electrical supply can be turned off
by pressing the latching emergency stop
switch. To restart machine, rotate emergency
stop switch (releases switch latch) and then
restart machine by pressing green "On" button
on top of electrical box.
4 Raising Switch, Upper Taping Head Frame
This switch, when touched by the leading edge
of a box, pneumatically raises the upper frame
to allow insertion of the box under the drive
belts. As the box moves under the switch,
releasing it, the upper frame descends on the
box and the drive belts convey the box through
the machine. When switch is actuated by
hand, the upper frame rises to its maximum
height, Released, the upper frame descends
to its rest position.
5 Centering Switch, Box Centering Guide
This pneumatic switch controls the box
centering guides. When switch is activated by
a box entering the case sealer, the centering
guides close (centering the box), and released
(after box passes over switch), the guides
open.
6 Air Pressure Regulator, Box Centering
Guides Figure 3-4
This regulator is used to adjust centering
guides according to weight of boxes. Pressure
should be adequate to center boxes, but low
enough to allow easy pushing of boxes under
taping head. The regulator setting can be
locked by tightening the phillips screw as
shown.
7 Air Pressure Gauge, Upper Taping Head
Frame
This gauge, used in conjunction with the upper
frame air regulator, provides operator with a
reference pressure setting for various size/
weight boxes.
8 Air Pressure Regulator, Upper Taping
Head Frame Figure 3-5
Set nominally to control "down" movement of
upper frame (drive belts) and the pressure
exerted against the box. The regulator setting
is changed as necessary for the boxes being
sealed to provide adequate drive belt pressure
against the box to positively convey the boxes
through the machine. If the boxes slip or
hesitate while being conveyed, decrease the
regulator pressure which will increase the drive
belt force on the box for more friction between
the box and drive belts. Adjust setting as
necessary to get continuous movement of
boxes through machine.
For boxes which are fully packed with products
that support the top flaps, the adjustment of
this regulator is not critical since the boxes
can support the pressure of the upper frame
(drive belts) at a wide range of regulator
settings. However, if under-filled or fragile
boxes are sealed, this regulator can be used to
set the upper frame pressure to a minimum
that is still adequate to positively convey the
box and to prevent damage of boxes. The
regulator setting can be locked by securing the
lock nut on the regulator shaft as shown in
Figure 3-5.
Note – A precision regulator is used to
balance the upper taping head frame. Due to
the self relieving feature of this regulator a
small amount of air will continually vent to the
atmosphere. This is normal and amounts to
approximately 0.1 SCFM [3 liter/min].