Feeding unit
Feeding unit
Feeding system:
- SUN lead edge feeder, taking sheet’s leading edge as positioning benchmark, in line with printing, slotting and die-cutting positioning benchmark.
- Equipped with servo main drive motor.
- Back suction conveying to improve the feeding precision.
- Extend feeding function helps feeding low quality sheets (automatic adjustment of extension stroke).
- Air volume controlled by frequency converter (stepless adjustment) ensures accuracy and easy adjustment.
- Suction range adjusts to sheet width (attached is suction force tested by negative pressure meter).
- Return to zero detection.
- Dust removal system:
Feeding unit
Feeding system:
- SUN lead edge feeder, taking sheet’s leading edge as positioning benchmark, in line with printing, slotting and die-cutting positioning benchmark.
- Equipped with servo main drive motor.
- Back suction conveying to improve the feeding precision.
- Extend feeding function helps feeding low quality sheets (automatic adjustment of extension stroke).
- Air volume controlled by frequency converter (stepless adjustment) ensures accuracy and easy adjustment.
- Suction range adjusts to sheet width (attached is suction force tested by negative pressure meter).
- Return to zero detection.
- Dust removal system:
- Brush dust removal system, mechanically remove dust on printing surface.
- Electrostatic removal system, remove dust and reduce its adsorption capacity.
- Suction dust removal system to absorb dust through negative pressure cavity.
- Sticky roll dust removal system, transplant offset printing technology, cohesive rubber roll to get rid of remained dust after previous three dust-removal processes.
- Side guides and baffle:
- Motorized adjustment and value input on touch screen adjustment of front damper gap, manual adjustment in transverse position, manual adjustment of front damper height difference at both ends.
- Motorized adjustment and value input on touch screen adjustment of side guides position, dual protection of maximum and minimum limit position through program and limit switch. Side guides can be adjusted individually. Side guides jogging device at drive side with 150mm stroke.
- Motorized adjustment and value input on touch screen adjustment of backstop (sheet width) position, dual protection of maximum and minimum limit position through program and limit switch, sheet separating device effectively share accumulated weight from upper sheets to ensure feeding accuracy of sheets with variable speed and specification. In addition, auxiliary roller support bar prevents large size sheets from sagging.
- Feeding roll:
- Motorized adjustment and value input on touch screen adjustment of gap; maximum and minimum limit position protected by program.
- Knurled, ground and chrome coated lower roll, and upper roll is slotted and coated with rubber. (rubber hardness 20°~35°).
- Sheet-counting device (5 digits adjustable).
- Sheet width 1000mm and warped by 20mm can also be fed smoothly.
- Fault location display device is integrated with diagnosis function.
- Function of single sheet feeding and emergency stop device.
- Skip feeding device.
- Touch screen to display running speed and quantity.