The TCW500

Universal Converting Equipment have developed the TCW500 as the ultimate high, continuous productivity slitting machine. The TCW500 is based on the TCW 500 but with turreting rewind shafts. Two sets of rewind shafts allow the slitter to continue to run while the operator removes the finished rolls and reloads the cores. This greatly reduces downtime on the machine during reel changes.

Specifications

• Max speed 500m/min
• Max Unwind Diameter 1000mm(shafted)/1300mm(shaftless)
• Max Web Width 1300mm, 1600mm 1800mm
• Twin turret duplex cantilevered slitter
• Automatic cut and web transfer
• Max Rewind Diameter 500mm
• Slitting Type: Razor, Shear and Crush
• Minimum Slit Width 20mm
• Automatic knife positioning
• Trim winders or trim extraction
• Siemens S7 PLC
• AC Digital Vector Drives
• Colour TFT Touch screen
• Remote Diagnostics
• Full differential Rewind Shafts
• Laser core alignment (Computacore™)
• Automatic finished reel offloading
• Shafted or Shaftless

All aspects of the machine operation have been refined to maximise product quality construction.

Ease of Operation

All aspects of the machine operation have been refined to maximise product quality and consistency whilst minimising down time. The modular construction allows a range of options to be easily integrated into the machine construction.

Touch Screen Operator Interface

• Colour touch screen operator interface with easy to understand graphics
• Full recipe system to allow all the operating parameters to be saved and retrieved at a later date.
• Complete diagnostics

Advanced Drive and Control System

The TCW 500 has the latest Siemens digital drive and control system.

• Siemens S7 PLC programmed with the latest winder control algorithms to give the optimum control.
• Digital AC flux vector drives. Unlike other drive systems they will never need calibration.
• Digital communication between the PLC drives eliminating problems with noise and signal drift with analogue systems.
• Digital speed feedback from the motors ensuring precise speed control.
• Advanced diagnostic capabilities. All the operating parameters of the machine and drive system can be viewed on the operator display or remotely using the Universal Remote Diagnostic System.
• Once the optimum conditions have been determined all the machine parameters can be saved using the recipe system for recall at a later date.
• Capability for connection to company network via Ethernet to allow real time data on the machine operation to be viewed and historic data stored.
   

Total Tension Control System

The Total Tension Control System (TTCS) has been developed by Universal Converting Equipment to overcome the deficiencies of alternative systems and so provide the ultimate tension control system. On most machines the material tension will vary during the acceleration and deceleration phases due the energy required to overcome the inertia of the reels and the dynamic loses of the drive system. Without feedback of the web tension it is not possible to correct these tension shifts. TTCS is a "closed loop" rewind tension control system. Load cells provide feedback of the actual rewind tension and this is compared with the required tension. Through the use of digital technology, the drives make adjustments in milliseconds to maintain the required tension profile.

 The operator interface displays the required tension and the actual tension of both rewinds and the unwind. This data is generated by these motors is logged to the system memory and historic data can be viewed. Alternatively, this data can be saved via an Ethernet link to an external PC allowing a complete record of the tension profile of all rolls produced to be retained.

The TCW 500 has a "fast stop" emergency stop system which will stop all drives in under one second from maximum speed. The safety circuit is dual circuit with redundancy to conform to current regulations. Emergency stop buttons, trip wires and light guards are fitted in the appropriate places and the machine is fully guarded.

Energy Efficiency

The drive system used on the TCW 500 has been designed to minimise energy usage. During most of its operation the motor on the main drive on the machine will be acting as a brake, as will the motor on a driven unwind if fitted. The TCW 500 links all the drives together so that the energy being generated by these motors will be used to power the rewind motor

Total Integration

All the systems on the machine are totally integrated with the main control system ensuring that all information is shared. Set up of the guider, core alignment and knife positioning are all through the main operator interface.

Full differential rewind shaft

The TCW 500 is fitted with full differential rewind shafts so there is no need to position individual chucks each time the slit pattern changes. The Universal chucks grip the inside of the core. Differential control relies on the drive between the shaft and the inside of the core chuck. Other designs can rely on friction between the inside of the core and the chuck to create the drive. These systems require high specification core and are prone to dust generation when operating at high tension and side movement of the cores when operating at low tension.

As with other aspects of the machine, Universal refuse to compromise quality through the use inappropriate technology.

Universal Converting Equipment Limited
B12 Farthing Road Industrial Estate, Ipswich,
Suffolk, IP1 5AP, UK

Telephone  +44 (0) 1473 403333
Fax  +44 (0) 1473 406636

E-mail   info@universalconvertingequipment.com  
Web  www.universalconvertingequipment.com

Page updated on 25 March, 2005

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