A new advance in adhesive application for bonding laminated composite
panels manufactured on continuous Sandwich Panel Laminators.
The new design of adhesive application is designed to work with many
existing two-part polyurethane adhesives and dispenses with the messy
wiper blade system. This method of application provides even coverage
of adhesive over the full width of the panel.
The unit consists of a travelling bead head mounted on linear slides.
The two components are fully mixed in the head and ensures fully
mixed adhesive is distributed over the full width of the product.
The two components are supplied from variable speed separate Isocyanate
and Polyol metering pumps. The unit comes complete with its own set
of controls and control panel.
The Bead head is mounted on a travelling arm that reciprocates across
the line laying down the mixed adhesive bead onto the core material
on the upper line and steel on the lower level. The overlay of the
bead provides a high intensity of adhesive cover. Tests show that
this does effectively provided complete coverage of adhesive between
steel and core material.
The arm is moved to and fro by a linear pneumatic cylinder. The distance
travelled is controlled by 2 electronic proximity switches. At the
end of the run the travelling arm parks itself at the edge to allow
easy maintenance of the head and removal of the head for cleaning.
