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 As
a press blow is struck, the entire press frame including its
foundation is set into motion. This motion is essentially
a free oscillation. Extremely high loads can be introduced
into the internal press frame components and foundation area.
The Combination Press Pad sharply reduces these forces
through energy absorption. Due to a high coefficient of damping,
it quickly dampens out this free oscillation and limits the
number of shock pulses being transmitted. This also ensures
that the press frame and foundation will be completely at
rest before the next blow is struck.
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| BASIC
CONFIGURATION
Unisorb Titan Shock Pads are inserted into the Red-Line pad
material which acts as a frame for secondary support. Full
contact is obtained with pad sizes matching each press foot.
By varying the size and number of inserts, it ensures that
the combination pads are working within optimum load ranges.
This interdependent system allows the pads to be fine-tuned
to the individual support requirements of the press.
PERFORMANCE AND OPTIMUM LOADS
The optimum load range for the Combination Press Pads with
Titan Shock Pad inserts is between 800 and 1000 psi. This
places the material in a favorable compressive work range
for maximum pad life. Calculations are made to determine the
appropriate configuration for each pad set.
The performance of a press is greatly affected by how it is
installed. Without proper support, a multitude of problems
can occur from unwanted vibrations to premature wear of press
components and tooling. Due to the higher cost of mounts,
pad materials are often used where critical levelling and
alignment is not required. Problems can occur however, when
the combined weight / force of the press exceeds the capacity
of these conventional materials. Careful selection is necessary
to ensure that the pad accommodates the difference between
the static and dynamic forces and other factors such as offload
conditions.
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| Combination
Press Pads are now available to meet the specific
requirements of each press applications.
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Most presses exhibit an interfering frequency in the 30 to
50 Hz range. This graph shows the attainable isolation values
(30 and 40 Hz plotted) based on the deflection characteristics
of the combination pads with the Titan inserts. Further isolation
can be achieved by increasing the deflection with additional
layers of the pads.
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| COMBINED
PERFORMANCE
Unisorb Red-Line isolation pads have been used to isolate
presses for over 50 years, and provide excellent vibration
control and damping. Titan Shock Pads also provide excellent
damping, especially under extreme loads and high shock applications.
When used together, these well engineered pad materials reach
a level of performance unattainable with stand alone products.
The Combination Press Pad offers static support, frictional
contact and the capacity to handle impact forces with a wide
safety margin.
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| Click
to view data sheet - pdf format
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