205020 OTS Standalone Manual.pdf - 第17页
OVER THE TOP SNUGGER (O TS) OTS CONTROL RAIL Chapter Issue 3 Aug 14 Over the Top Snuggers (OTS ) Manual 1.5 OTS CONTROL RAIL A DIN rail at t he rear of the machine houses t he electrical , pneumatic and electro-pneumat i…
OVER THE TOP SNUGGER (OTS)
OVERVIEW
1.4 Over the Top Snuggers (OTS) Manual Chapter Issue 3 Aug 14
Magnetic Tooling
Pins
CAUTION
MAGNETIC TOOLING PINS. Clash damage may occur if the incorrect tooling
pins are used on modular transport rail (MTR) printers.
Tooling pins used on MTR machines, have a lower shoulder than standard
tooling pins. Magnetic tooling pins supplied with RS rails (p/n 107785 and
112069) must not be used on machines fitted with MTR rail systems. The
tooling pins used for MTR systems (p/n 205387 and 202582) may be used on
all transport rail systems. A warning label is displayed on machines fitted with
MTR.
OVER THE TOP SNUGGER (OTS)
OTS CONTROL RAIL
Chapter Issue 3 Aug 14 Over the Top Snuggers (OTS) Manual 1.5
OTS CONTROL RAIL
A DIN rail at the rear of the machine houses the electrical, pneumatic and
electro-pneumatic control assemblies. The complete assembly consists of a
manifold, three pressure regulators, two programmable ITV valves, a vacuum
ejector and electrical input/output node 5. The individual components are
itemised in the drawing above.
IO Node 5
Programmable ITV
(Snugger Pressure)
Programmable ITV
(Clamp Pressure)
Venturi Vacuum Valve
(Vacuum ejector)
Mid Plate Up Valve
Mid Plate Down Valve
Over Top Plate Extend/Retract Valve
Top Plate Up/DownValve
Vacuum Valve
Snug and Brake Valve
Balance Va
lve Regulator
Supply to
Balance Valve
Regulator
Over Top Cylinder
(retract)Regulator
Over Top Cylinder
Regulator (extend)
Air In ‘Tee ’
Air Isolating Switch
OVER THE TOP SNUGGER (OTS)
OTS CONTROL RAIL
1.6 Over the Top Snuggers (OTS) Manual Chapter Issue 3 Aug 14
Pneumatic
Manifold
There are six solenoid valves in the manifold they are designated as follows:
• Valve 1 Mid Plate Up
• Valve 2 Mid Plate Down
• Valve 3 Over Top Plate Extend/Retract
• Valve 4 Top Plate Up/Down
• Valve 5 Vacuum
• Valve 6 Snug and Brake
The solenoid valves (1 and 2) control two pairs of double acting cylinders in the
mid plate of the OTS rails. With Valve 2 on, a programmable ITV valve is used
to proportionally control mid plate down. With Valve 1 on, it pushes the mid plate
up, when off, the balance regulator supplies low pressure to support the weight
of the OTS unit. A pair of speed controllers are used to control the speed of the
mid plate up; this prevents board bounce during unclamping. Air lines to and
from the mid plate cylinders are coloured blue.
ITV
Clamp Pressure
Mid Plate
Cylinder
Speed Controllers
Mid Plate
Cylinder
In
Valve 2
Mid Plate
Down
Valve 1
Mid Plate
Up
2A
1A
Balance Valve