Overview Of This Model - Emerson Branson 2000X ae Operating Manual

2.2

Overview of this Model

The 2000Xae Actuator is a compact, rigid unit designed for use in manual, semi-
automated, and automated ultrasonic welding systems. The Actuator can be mounted
directly on an I-beam (or similar machine frame), or it can be mounted on a column and
base with start switches and used in a manual or benchtop system. The Actuator is
designed to be operated in an upright position, but is capable of running horizontally or
inverted. If you are mounting your equipment in an inverted position, contact Branson for
further recommendations. (See
The 2000Xae Actuator requires a 2000Xea Power Supply for power and control of the
Actuator's operation and to provide ultrasonic power to the Converter in the Actuator.
The 2000Xae Actuator is designed with full, built-in pneumatic controls, and mechanical
controls. Operation of the 2000Xae is controlled by inputs to the 2000X Series Power
Supply.
The pneumatics covered in this manual refer to the pneumatics within the actuator. Some
customers may require custom controls.
The Carriage and Slide System
The 2000Xae Actuator's carriage is driven by a double-acting air cylinder. It is mounted on
a linear ball-bearing slide. The slide system is based on eight sets of preloaded,
permanently lubricated bearings and provides consistent, precise alignment of the horn,
smooth linear motion, and long-term reliability.
The Pneumatic System
The pneumatic system included on the 2000Xae model is contained within the Actuator's
sheetmetal enclosure and consists of solenoid valves, an air cylinder, and a pressure
regulator with an air pressure gauge. The horn's rate of descent is adjusted by the
Downspeed control on the front panel of the Actuator. The rate of return is fixed. For
information on setting the Downspeed control, see
Dynamic Triggering and Follow-Through
Many welding applications require force to be built up on the part before ultrasonic energy
is activated. To achieve this, the Actuator contains a dynamic triggering mechanism,
located between the air cylinder and the converter, which initiates (triggers) ultrasonics
after a preset force is applied to the part. Dynamic follow-through maintains a consistent
force on the part during the weld collapse. This system helps provide uniform weld quality.
The dynamic triggering and follow-through process operates as follows: upon activation of
the operating cycle, the solenoid valve delivers regulated air to the upper portion of the
cylinder, and regulates the exhaust of the cylinder through the downspeed control from
the bottom of the cylinder, causing the horn to advance and contact the workpiece. As the
pressure increases, the cylinder compresses springs, forcing a cam to break the optical
beam of the trigger switch. When the trigger switch closes, a signal is sent to the Power
Supply, which then starts the weld cycle.
At this time, the actuator locks into a cycle, timing begins, and the palm buttons can be
released.
As melting of the plastic occurs, spring reaction dynamic follow through maintains
consistent force on the part, ensuring smooth, efficient transmission of ultrasonic energy
into the part.
1019571 REV. 03
1.5.3 Departments to Contact).
2.4 Controls and Indicators.
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