3M 3M-Matic Dual S-867 II, Инструкция и перечень запасных частей

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14
Theory of Operation
(Continued)
Components
Refer to Figure 7-1 for component locations.
VALVES
V-1: The on/off control valve, actuated by the knob on
the top of the machine.
V-2 Paddle Valve: A box placed in the paddle area
actuates V-2, which directs a pulse of air from the
manifold, through valve V-8, to the PA port of pilot
valve P-1. This shifts valve P-1 and activates the buff
and cut cylinders beginning the application cycle.
V-3: This valve is actuated by an actuator on the buff
cylinder slide assembly and directs air to the PB inlet
of valve P-1, thus causing it to shift and retract the
buff and cut cylinders.
V-4: This valve is actuated by an actuator on the buff
cylinder slide assembly and routes air to the PA port
of the pilot valve P-2. This causes valve P-2 to shift
and direct power to the feed and jaw cylinders to
begin the feed sequence.
V-5: Actuated by the buff cylinder slide assembly at
the end of the retract stroke, V-5 directs air from the
pilot valve V-2 to the jaw cylinder.
V-6: Actuated by the feed cylinder slide assembly at
the end of the retract stroke, V-6 shifts the pilot valve
P-2 and causes extension of the jaw cylinder. This
causes the tape holding jaws to close on the free end
of the tape.
V-7: Valve V-7 is actuated by the actuator mounted
on the jaw cylinder rod. When the jaw cylinder fully
extends, valve V-7 actuates and directs air to the
head-end of the feed cylinder, causing the feed
cylinder retract. This completes the feed cycle.
V-8: Actuated by the full extension of the feed
cylinder assembly, valve V-8 provides a path for air
from paddle valve V-2 to pilot valve P-1. This sets up
the machine for the application cycle.
V-9: Safety Valve: V-9 removes power (air) to the
ma chine when the cover is opened.
P-1 Pilot Valve: P-1 controls the buff/cut sequence.
P-2 Pilot Valve: P-2 controls the feed sequence.
CYLINDERS
Safety Cylinder: A spring loaded cylinder that
retains the feed assembly when the machine is in the
rest position-power off.
Paddle Cylinder: A cylinder which is actuated at
the beginning of the application cycle. It holds the
box paddle beyond the actuation point of paddle valve
V-2, to prevent additional actuation of the paddle valve
before the application cycle ends.
Buff Cylinder: The buff cylinder controls the buff
roller assembly the "L" clip of tape to the box corner.
Cut Cylinder: The cut cylinder controls the knife
assembly that cuts the section of tape applied by the
buff roller assembly.
Feed Cylinder: The feed cylinder controls the feed
assembly that advances the tape and insertts it into
the holding jaws immediately following the buff/cut
sequence.
Jaw Cylinder: The jaw cylinder controls the holding
jaws that retain the end of the tape between
applications.
AIR FLOW CONTROL VALVES
F-1 : Flow Control Valve 1 controls the extend rate of
the feed cylinder. This is needed to prevent premature
wear and damage to machine components.
F-2 : Flow Control Valve 2 controls the retract rate of
the feed cylinder. This is needed to prevent premature
wear and damage to machine components.
F-3 : Flow Control Valve 3 controls the retract rate of
the buffing cylinder. This is needed to prevent
premature wear and damage to machine components.
F-4 : Flow Control Valve 4 controls the extend rate of
the buffing cylinder. This is needed to ensure the tape
is cut prior to being applied to the product.