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Roll Forming
Equipment for Door and Window Seal Manufacture |
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This equipment is
designed to provide automated manufacturing of
automotive door and window moldings and seals. |
Equipment Overview
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The Preformer with
Pullbase form the carrier metal that is inside the
extrusion. |
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For more complicated
shapes you would use more than the typical 5
stations. |
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The Dual Pullbase dual
cassette is an example of a 9 station Preformer.
It can run wire carrier, lanced and streched,
stamped metal or solid metal with line speed of up
to 80 feet per minute. Extruder controls line speed
with dancer arm. |
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It is very fast to
change Preformer cassettes out to get more run time
from your line. SMED (single minute exchange of
dies) and the previous settings are kept from last
time job was ran. |
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Process Description
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Automotive
Weatherstripping (Door Seals) have many names:
Primary Door, Secondary Door, Body Panel, Decklid,
Wheelhouse, Rocker , Split line , Door to Fender,
Door to Door, Glass Run Channel, Window Outside
Waist Belt (Outer Belt), Window Inside Waist Belt
(Inner Belt), Sill Seal/Rocker Seal, Sunroof Seal,
Upper Auxiliary, Backlite, Roof Rail, Hood to Cowl ,
Front and Rear Quarter Window, Body Side Window,
Drip Rail (Margin Seal), Tailgate or Trunk Seal are
a few examples of the weather-stripping on vehicles.
These extrusions are either supported ( have metal
core ) or unsupported (no metal). |
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The door and window
seals are made by our customers in a continuous
extrusion process. Think Play-Doh machine on
steroids. These extrusion line speeds can run
as much as 100 feet per minute. |
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The process starts with
payout machines. Spools of carrier metal are put on
these for feeding metal down the line. They
are either powered or free spooling. |
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Preformers (rollformers)
form the shape of the carrier metal. The
Pullbase is the drive system that powers the
Preformer cassette. TTE's Preformer can be changed
out in 2 minutes which keeps the line running more
hours per day. Other companies roll formers
take hours to change out a set of rolls so a
different profile can be ran. |
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In the slideshow above
is a photo that shows some of the various styles of
carrier metal. It can be solid metal, wire,
lanced and stretched or stamped metal. |
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Next items in an
extrusion line that TTE makes would be Extruder
Heads, Nose Cones and Spiders. These items are
in the extruder itself. The extruder is like a
big Play-Doh machine where the preformed metal gets
the rubber (EDPM) or plastic put around it.
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The extrusion die and a
piece of machinery that is bolted right on the exit
end of the die for putting texture on the extrusion
(Spectratrim) while it is still hot and soft is also
show in the slideshow. |
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After this extrusion is
cooled after coming from the extruder it sometimes
needs a vent hole drilled in the sealing bulb.
We sell these specialized drill bits all over the
world and make Drill Machines to perform this
operation. |
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Final Product
Door and Window Seal Profiles
Formed with TTE Roll Forming Equipment
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