SMA-SRM

Description

Slitting and rewinding machine for Jumbo rolls made of abrasive cloth. Working capacity is unprecedented; currently it is the most powerful machine for the slitting of Jumbo rolls. It is composed of 3 main areas: unwinding unit, slitting and rewinding unit, control board. The unwinding unit is a thick frame, featuring a fixed part and a mobile one, processed via machining center in its entirety, with enough space for the operator to cross from one side to the other. A TRIPLEX unwinding system allows easy repositioning of the jumbo roll in 3 positions. Maximum diameter of the Jumbo can be 1700mm; maximum width is 1750mm, maximum weight is 2800kg. The main body of the machine is made of 2 high-quality S355 carbon steel sides, cut via oxy-cutting process, then stress-relieved, and processed via machining center. No welding applied; parts are connected via bolts and ring nuts. Every component is plugged into the other. The electrical board features components by ABB, Siemens and Schneider Electric. PLC is S7-1200 model by Siemens, operator panel is TP900 model, 9″ for data export. Intuitive programming, according to 4.0 industry High-definition display for control and storing of cutting operations. Operator can check presence of material defects.

MAIN FEATURES
Maximum cutting speed: 150m/min
Closed-loop motor control via variable speed synchronous motor technology, IES-certified, energy-efficient
6 servo-motors for unwinding, for material driving, for rewinder 1 and 2, for scrap winder 1 and 2. No maintenance needed; motors act like clutches but without the same wearing
Connection between driver and PLC via PROFIBUS
Rewinding shafts can open on a 180° rotation
Double pneumatic brake with automatic control and diameter laser reader
Laser for identification of flap positioning
Diameter reading laser for rewinding
Double cutting system, via multi-blade shaft and knifeholder
TRIPLEX unwinding system, with 3 unwinding positions for the Jumbo roll
Belt conveyor for material webbing
Lifting tray for material webbing on the unwinding unit
Lifting tray for material webbing on the rewinding unit
Roll rotation device for material webbing
2 scrap winders
Rotating cutting head via hydraulic cylinders
Transverse cutting with material clamping
Counter roller moving device with opening bearing backings
Counter rollers on rewinder 1 and 2
Cutting pressure adjustable via PLc
Pressure regulator for every knifeholder
Automatic edge-guide mechanism
3 control boards
Two safety barriers and sensors by Keyence
Operator panel with recipe programming and data transfer via Ethernet
No camber effect* on blades
Two-year warranty

*Thanks to installed power and specific re-start operations, blades will not have any camber angles. The machine allows to restart operations and move the unwinder without any problem.