Motorized Metal Steel Automatic Slitting Machine For Coil Roll Operator Safety

 

 

 

The process begins with loading a coil of steel or master coil onto the uncoiler. The uncoiler can be a dual cone type for heavy gauges or a single end expanding mandrel type for heavy or light gauges. The coil can be loaded into the cones via a pusher type ramp or via a turnstyle and coil car that threads the mandrel of the single end into the inner diameter of the master coil.

 

The hold down presses onto the outside diameter of the master coil and the bands are cut on the master coil. The coil is rotated off the cones or mandrel and peeled to allow the head of the coil to enter edge guides prior to the flattener and leveler (if flatness is critical in downstream operations). Next, The slitter, which consists of two parallel arbors mounted with rotary cutting knives.

 

 

 

In the beginning, the coil is loaded on the coil car by crane and brought to the uncoiler by operating the coil car. Coil car centralizes the coil with the uncoiler mandrel and the coil is mounted on the uncoiler. Mandrel is expanded. Snubber roll rotates the coil. Peeler breaks the straps and brings the pre end upto Pinch roll. The Pinch roll drives the coil end upto the slitter. Then its drive is disconnected. Slitter moves the slitted strips further. Slitted strips are threaded through loop table and drag tensioner into the recoiler drum. Recoiler winds one turn on loose coil.

 

Then drag tensioner and loop are put into operation. Slitter and recoiler run simultaneously in synchronization. As the coil build up, the recoiler rpm correspondingly goes down to keep desired constant line speed. This process goes on until the end of coil on uncoiler. The slitted coil is pushed on the exit coil car through a pusher plate operated by hydraulic cylinder. The side slitted scrap is wound on the scrap winder units provided on both sides of the slitter.