Feature & Advantage Of Calendering Machine In Textile
- The soft-faced roller of this machine uses the technology of controllable middle and high zone. Upper and lower rows of pressurizing piston units are arranged on the main shaft in the nylon sleeve of the rotating high-elasticity roller along the length direction. You can adjust the pressure between calendering points freely according to fabric width to make the pressed roller’s width same as fabric width.
- There is hydraulic retracting device in the nylon sleeve. Through the support elements arranged at the left and right ends of the shaft, the quick pressure release is ensured, and both sides of the high-temperature sensitive nylon sleeve are pulled back in time, thus avoiding the direct contact between the non-fabric areas at both ends of the nylon sleeve and the heating steel roller. Therefore the nylon sleeve’s face not covered by fabric will not be damaged by heat.
- Nylon sleeves rotate on a controllable hydraulic oil film. Static pressure bearings are used. So there are no problems of wearing and sealing.
- The product’s thickness, gloss, homogeneity after this machine’s calendering is much better than those after normal fixed middle high calendering.
- This machine can stand steel roller’s high temperature and bigger linear speed in the running.
Process Route Of Calendering Machine For Textile
Fabric feeding（tension control）－metal detector －photoelectrical centering device－seam detector－expanding－three roller calendering－electrostatic eliminator – plaiter
Configuration Of Bendcon Calender
| Machine rack | The main frame is composed of left and right wall panel frames, the material is Q235, the thickness is 80mm, and the sandblasting high temperature tempering treatment after welding. The left and right frames are connected by fixed-distance beams to increase the stability. The fixed-distance beams are welded by section steel and tempered after welding.
Input and output frames: it adopts “C” type steel Heating roller movement method: moved by 35T lifts |
| Rollers | Heating roller
Roller diameter: Ф400mm,Material: alloy steel forgings,The max surface temperature of roller: 170°C The roller structure: there is a big hole in the middle of roller, some small holes around the big hole and close to the surface of roller.This structure is used for circulation of thermal oil and the surface temperature different of roller is very small.The surface of roller is plated and polished to mirror. Material: alloy steel forgings Bendcon-Y roller Working concept: the roller core is fixed,there are two rows of hydraulic pistons at the horizontal and vertical directions of roller core, nylon sleeve will be contacted with heating roller and wool paper roller in the vertical and horizontal directions when the pistons gets pressure. The line pressure between two rollers can be adjusted because the internal pressure of pistons can be adjusted. Pressure zones:3 pressure zones in vertical direction and 3 pressure zones in horizontal direction,1 pressure zone for nylon sleeve recovery. Roller diameter: Ф510mm.The raw materials of nylon sleeve: BASF material from Germany.Nylon sleeve is driven by motor power(0.37KW) which can effectively prevent surface of nylon sleeve being damaged by heating roller. Wool paper roller Roller diameter: Ф600±1mm.The max surface temperature of roller: 80°C. |
| Heating system | The heating roller heating method: thermal oil circulation heating. The heater: YL04 heater, the thermal oil comes from boiler of user. Measurement method of temperature: measure internal temperature of the mirror roller. Temperature difference among rollers:±1.5℃. Temperature control method:SCR. |
| Driving devices | Main motor power: 37KW, adopts hard tooth surface reducer + main motor driven by sprocket, Siemens brand motor.Outlet motor power: 3KW,Siemens brand motor. |
| Hydraulic system | Maximum pressure of hydraulic system pipeline: ≤8.5Mpa
Pressure control mode: use constant pressure sensor to control pressure Hydraulic pump motor power: 18.5KW Bendcon internal pressure control method: Proportional valve control,ATOS brand Hydraulic oil cooling method: plate heat exchanger |
| Cooling system | The nylon roller is cooled by air blowing
The nylon sleeve and wool paper are cooled by air blowing（middle of rollers without cooling） |
| Electrical control system | Speed regulation: inverter control, Siemens brand inverter
PLC: Siemens brand Touch screen: Siemens brand Main electrical components: Schneider brand |
| Safety protection devices | Electronic static eliminator
Finger anti-pinch protection device Emergency stop pull switch Metal detectors Seam detector |
