Traditionally waste matrix is wound onto a rewind shaft which often causes
limitations and drawbacks such as costly down time and interrupted production
runs.
During production runs the operator must stop the presses
periodically to
remove the waste matrix roll and install an empty core. The result is lost press
time, operator time and waste.
As matrix rewind rolls become larger tensions increases, often
causing
breaks in the matrix, especially when running lightweight stocks. Often the
operator must stop the press in order to re-thread the waste matrix rewind shaft.
Unique Approach to Matrix Removal
The FOX TrimAway® offers these solutions to matrix removal dilemmas:
By continuously conveying matrix, presses can be run virtually
non-stop
excepting roll-stock changes.
By producing relatively constant tension on the matrix costly and
annoying
breaks are avoided. This allows operators to run at increased web speeds.
Operators can easily adjust the tension producing vacuum during production
runs.
The FOX TrimAway matrix removal system has interior surfaces which are specially coated with high-release PTFE lining which prevents pressure-sensitive material from adhering.
Compact modular components make installation of all of the FOX
systems
simple. The venturi can be mounted quickly to the matrix rewind shaft by means
of a special quick-release bracket. This bracket fits onto a core, preventing
damage to the shaft. The entire assembly then slides onto the shaft, is chucked up
and the venturi is set at the proper angle for matrix entry with the shaft
rotation locked down. The discharge duct is connected to the venturi discharge.
The motive air line from the blower is connected to the venturi motive inlet.
The blower can be located up to 20 feet from the venturi or, if space permits,
directly on top of the press. Removal of the system requires less than a minute if
access to the rewind shaft becomes necessary.
The matrix removal system is capable of handling a
22" wide web at speeds in excess of 700 FPM. The amount of diecut or open
area in the matrix will determine the maximum capabilities of the system.
The interior surfaces are specially coated with a high release PTFE lining
which prevents pressure-sensitive materials from adhering.
For our label manufacturers, our systems utilize PTFE lined components so exposed PS adhesive is easily conveyed without contamination, as with oils or powders.
What is Web Handling?
Web Handling is the science, engineering and equipment necessary to successfully transport a continuous flexible material through various processes without defect. Enhancing Web Handling with proper equipment will ensure materials are processed at their maximum efficiency, allowing the process to generate maximum profits.
