Dual Turret Slitter Rewinder-Roboslit

The ROBOSLIT^® is more than just a machine. It is a mission statement. A mission to increase output levels without increasing the machine speeds beyond realistic levels permitted by the working environment and human limitations. As time and work studies have indicated, more than 55% of the total time on a good quality duplex slitter rewinder is spent on the various changeovers between reels, slit widths and slit modes, with rewind changeover accounting for nearly 70% of the total changeover time.

Considering the above statistics, it is easy to see that for a given increase in the design speed of a machine from the optimum level, the increase in output is woefully out of proportion. For example, in an environment where the machine runs for only 45% of the total time, increasing the speed from 500 m/ min to 600 m/ min i.e. an increase of 20% in the machine speed would result in output levels which are higher only by 9%.

Designed to run at a maximum speed of 500 m/min, the ROBOSLIT^® employs devices and techniques which drastically cut down the cumulative changeover time, so that the machine runs for about 90% of the total time, thus doubling the output vis a vis it’s counterparts rated for the same speed. Most importantly, this massive increase in output levels is achieved without increasing operator fatigue by the use of integrated material handling solutions which need minimum intervention or exertion by the operator.

The revolutionary features in the ROBOSLIT^® which make it possible to realize the above objectives include-

• Dual turret rewinds which bring down the changeover time to less than 30 seconds by making it possible for other devices to execute the activities related to removal of finished reels and set up of new cores with the machine in operation
• These devices  include a cross- cutting device, servo driven finished reels ejector, multi axis off loading mechanism and robotic core positioning system
• Robotic cutter positioning system while cutting in the tangential, rotary mode, resulting in a drastic reduction in the time and expertise required to change slit widths
• Horizontal orientation of the lay on section ensures that the rewind reels are subjected to constant contact pressure as against the pivoted counterparts in which the contact angle changes with the rewind diameter