1. Servo motor controls winder displacement width and distance, winder displacement can be on the computer according to strap’s specification
2. Inverter closed loop controls winder speed
3. Winding width can be set per specific requirement
4. Automatically adjust winding tension
5. Tape reel offers perfect winding curve
6. Winding range from 5mm to 32mm straps
7. It is suitable for roll core diameter of 200mm and 406mm, other roll core size can be customized per requirements.
II . Working principle
1. The series of strap winder for extrusion speeds up to 180m/min (590.55fpm) have one spindle per machine. The machines have reinforced dancer arms for winding tensions. The inclinometer fixed to reinforced dancer arm transforms the physical location signals of the dancer arm into electric signals and sends to the programmable logic controller (PLC). After data operation, PLC controls the running speed of the winding motor, driving the paper drum fixed around the winding axis to wind the straps evenly with constant tension.
2. The straps thread through the traversing unit. Traversing motor runs proportionally to the winding motor. So the straps are evenly wound around the cylindrical tubes.
3. A meter recording encoder is connected to the traction motor. It reports the linear speed and the length which has been wound already to PLC, and the PLC will display the linear speed and the length on the screen. Users can know well about the equipment operation condition currently.
III. Technical specification
1. The machine of strap winders is used for winding PET/PP straps up to 31.75 mm (1 1/4") width in parallel winding directly from extruder line.
2. Strap feed from left to right (from operator’s side)
3. Each machine mounted on a frame
4. Machine specification Each winder is equipped with:
4.1 For the PET /PP strap packing into a roll. The center automatically arranged winding. Consists of: closing reel, core, transmission unit, winding displacement unit, rack, electrical control parts, etc.
4.2 Automatic computer control winding disk diameter and length of the winding.
4.3 Winding parameters, cable parameters can be set according to the product specifications by computer.
4.4 Servo motors are used to control the width and spacing of winding displacement.
4.5 Straps entrance with protection device.
4.6 Torque arm directly separately checks the location and pneumatic plug to maintain the tension of straps.