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If
you are doing a low production run of two part epoxy, remember that IDS
will be happy to
quote both
a premixed/frozen version in easy to use syringes and even a
small freezer to keep them
safe.
As always, please
call us at (818) 597-4300 or email to:
service@dispensinglink.com if you have any question.
Meter-mix
Also referred to as meter-mix-dispense, this means the
dispensing machine meters (measures) the doming materials by volume and
then mixes the components before depositing the resin onto the products.
Static mixer
This refers to the dispensing machine's mixing unit, which is
responsible for blending doming materials. A static mixer is often a
simple, rigid, plastic tube that houses a series of helical elements. As
both components of a two-part polyurethane resin enter the static mixer,
they're sheared and blended together when they pass over each element.
The result is a homogenous mixture ready for deposit. Static mixers are
common in both entry-level manual and high-end automatic dispensing
systems.
Dynamic mixer
The dynamic mixer is similar to the static version in that it relies on
the helical elements, but it also consists of a pneumatic motor that is
integral to the dispensing head. This motor complements the static
mixer's shearing and blending effect with rotary motion, which provides
additional mixing.
Piston-metering systems
Some dispensing machines rely on pistons to measure the resin and
catalyst. The pistons' cylindrical housings are sized to conform to the
volumetric ratio of the doming materials, 1:1 and 2:1 being the most
common configurations. Upon actuation, the pistons push the precise
amount of each component toward the mixer.
Gear-metering systems
These are another means used to deliver predetermined amounts of doming
components to the dispensing machine's mixer. The gears, controlled by a
servo motor, are machined with precise volumetric spaces between each
tooth, which makes them the metering system. Controlled amounts of
doming materials are metered as they're captured by the teeth of the
gears.
UV Adhesive
If you use a
single component UV adhesive, you can eliminate a lot of the headaches
that are inherent in a two component system. The right
UV Adhesive is important. It will be a
little more expensive, but throughput will increase dramatically.
UV Dispensing
Because you
are using a single component material, you can choose a lower cost
Shot Meter with which to dispense the materials. Choose from any of our
Robots and
speed things up even more. If you are looking for higher production, use
a valve and
valve controller mounted on a
robot, fed by a
reservoir of any size.
UV Curing
After
choosing the materials and dispensers you will require a
UV Curing System. They will range from a
basic low cost operator controlled
Flood
System to an IDS
MotionCure UV Flood
Curing System, an integrated Conveyor and Curing Head.
Manual Dispensing
You can make a minimal investment in the technology by
using
a hand-held dispensing
syringe. Some
semi-manual pneumatic
dispensing units may come with footswitches and other control
options, but expect to index your sheets of printed products and move
them along the production line by hand.
Dispensers in this category, while manually
driven, offer repeatability of shots, accuracy, and excellent production
pace. |
