Transcript Tension Control Basics

Goss Urbanite Press
Tension Control Upgrade
Existing Unwind Stand
Existing Unwind Stand: Top and bottom rolls were controlled by manual clamp brakes
and dancers. The brake rotor was attached to the air shaft.
Goss Urbanite Press Upgrade
Existing Unwind Stand
Back side of the unwind stand
with extended shaft journal
Tension was controlled by a
spring loaded dancer assembly
Goss Urbanite Press Upgrade
Existing Unwind Stand
Existing Unwind Stand:
•Manual control process
•Highly operator dependent
•Poor tension control
•High safety risk
Goss Urbanite Press Upgrade
Closed Loop Tension Control Upgrade
Tension Controller Upgrade
Installed (2) S Series Tension Controllers, one
dedicated to the top unwind stand and the other
dedicated to the bottom unwind stand.
Automated, precise, consistent control. Easy to
install, set-up, and operate.
S4 Tension Controller
Goss Urbanite Press Upgrade
Closed Loop Tension Control Upgrade
Load Cell Installation
Load Cells replaced crude dancer control system
providing precise, continuous, direct web tension
measurement for automated control.
Stainless steel body, semiconductor strain gauge,
high quality, high performance.
ES Dead Shaft-Idler Load Cells
Goss Urbanite Press Upgrade
Closed Loop Tension Control Upgrade
Tension Brake & Safety Chuck Upgrade
High performance V Brake is installed along
with new safety chucks replacing crude
clamping brake, creating smooth linear
torque from full roll to core while increasing
safety and allowing for easier roll loading.
V Brake Safety Cover
Goss Urbanite Press Upgrade
MPC4 IP Converter
& MAF3 Air Filter
V Brake & Guardian Safety Chucks
V Brake Features
•Easy Installation
Guardian Safety Chuck Features
•Redesigned Journal Seat with
replaceable inserts
•Wide Torque Range
•Reversible Safety Lock
•Linear Torque Output
•Rotational Auto Locking
•Increased Cooling Capacity
•Easier Roll Loading
•High Thermal Capacity Discs
•Increased Safety Factor
•Tool-less Maintenance
•Longer Service Life
•High Heat Dissipation
•Built to Suit Shaft Ends
•Bi Direction Operation
•Self Centering Journal Seat
Goss Urbanite Press Upgrade
Closed Loop Tension Control Upgrade
Easy to install mounting brackets used to mount new chucks to the machine frame
New shafts are lighter and shorter
Bracket
Brake/chuck combination allows for axial
adjustment. Axial adjustment is
accomplished by turning the handwheel.
Goss Urbanite Press Upgrade
Closed Loop Tension Control Upgrade
For optimum performance, the spring tension of the existing
dancer must remain at maximum.
Goss Urbanite Press Upgrade
Closed Loop Tension Control Upgrade
The unwind control system engineered and installed by Montalvo, insures a
constant web tension entering the Tech-Energy Tech Express tower
Goss Urbanite Press Upgrade
Press Upgrade Review
BEFORE Upgrade:
•Manual control process
•Highly operator dependent
•Poor tension control
•High safety risk/dangerous
•Makeshift & cumbersome
Goss Urbanite Press Upgrade
Press Upgrade Review
AFTER Upgrade:
•Automated control process
•Easy to set-up & operate
•Consistent, precise tension control
•Safe & Reliable
•High quality, high performance, & versatile
Goss Urbanite Press Upgrade
Montalvo Press Upgrade Advantages
Consistent web tension allowing process to run all the way from full roll to the core.
Automated tension control maintains the exact set tension throughout the process –
Set It & Forget It
On the fly axial web adjustment
Tool-less, snap-out, snap-in brake pad changes – reduces and simplifies
maintenance.
Greatly improved operator safety
Increased end product quality and overall productivity
Reduced scrap
Goss Urbanite Press Upgrade