Hollymatic -- 2018 - 2

Once the motor and gear box became a
part of the Defender 4000 make up, Guynn
and his team found the blade stopping in
around 100 milliseconds. Guynn wanted the
blade to stop faster to ensure the highest
level of safety. Traditional, heavier stainless
steel wheels, especially the top wheel which
has no braking mechanism, equaled significant inertia. With the weight allowing the
unchecked top wheel to continue spinning
after the bottom wheel stopped, the blade
still traveled roughly 10 ft.

The Hollymatic team consulted Chris Rupp,
vice president of beef operations at Tyson
Foods, regarding wheel weight and figured
out a way to lighten them. "It lowered the
inertia by three times," Guynn says.
Once the team took care of stopping the
wheels in time, they fixed their energy on the
vision system sending the message to "stop
the saw." The Defender 4000 utilizes the fastest
camera available for the application with a
total processing time of 40 milliseconds. (Total
processing time means that the camera will
take a picture, analyze it, decide if the image
is good or not and tell the saw to stop-all in
.040 seconds.)
"A normal vision system's processing time is
somewhere around 50 to 100 milliseconds,"
Guynn says. "What I found was at that speed,
when you move a hand in quickly towards
the blade, it may or may not detect it."

and their teams
received worker
safety awards
at Tyson Foods'
Dakota Dunes,
SD, offices.


Hollymatic -- 2018

Table of Contents for the Digital Edition of Hollymatic -- 2018

Hollymatic -- 2018 - 1
Hollymatic -- 2018 - 2
Hollymatic -- 2018 - 3
Hollymatic -- 2018 - 4
Hollymatic -- 2018 - 5