Rewinding Machine structure - Ejection Department
In the rewinder system, we installed the paper roll on the paper exit frame. In order to ensure that the width of the sides of the paper web is the same, we should be moving the seasoning when
the paper roll is ejected. But the paper roll in the new structure can move with the paper exit frame,
This ensures a greater rigidity of the exit frame. In addition to manually moving the paper roll, we can also use the pneumatic, photoelectric device and electric method to adjust the axial movement
of the paper exit frame, so that the cutting edge of the winder can be narrowed, and the manual adjustment can not be achieved. Requirements.
Rewinder mechanical structure and control process ---
Second, the main structure of the winder
2.3 Rolling Department
1. Stretching device
The stretching device of the rewinder is set to keep the paper web slit after slitting. In some paper cutting knives, the stretcher is also used. The main function is to eliminate the texture and slack of the paper web. Mainly, it can maintain the good operation of slitting. There are three types of stretchers that we often use today: D-shaped stretches, curved rollers, and Z-type double-bar stretchers.
2, support roller
The backup roll is mainly used to support the paper roll, which is composed of a controlled cast iron roll or a general tube roll. The roller body is mainly cast iron pipe and steel pipe, and its diameter is usually 400-700 mm or more according to the width of the winder. The center-to-center ratio between the rolls of the backup roll should be greater than the roll diameter. Only at such a distance, the roll core does not get caught in the middle of the roll when the support roll begins to curl.
When the winder is running at high speed, in order to avoid vibration during high-speed operation, the design of the backup roller must be minimal when supporting the paper roll. The radius is a function expression of the speed and width of the winder, mainly by allowable The critical speed and the degree of winding are determined because at this time the diameter of the backup roll has less chance of producing a defect in the roll hardness than the small diameter support roll. When coiling coated paper or very thin paper, we should consider using a larger diameter backup roll. On a rewinder with a small width, we generally use a 600mm roll diameter.
Guolian High Speed ??Slitting Rewinder Technical Description ---
The rewinder has the characteristics of high automation, fast speed, stable operation and wide width.
First, the main technical parameters:
Paper type: high strength corrugated paper
Net paper width 4950mm
Working speed 2000m/min
Design speed 2200m/min
Feed speed ≤25m/min
The maximum diameter of the eject roller φ3100mm
Roller roller maximum diameter φ1500mm
Roller roll minimum diameter φ500 mm
Maximum web tension 1500N/m Acceleration time 90s Emergency stop time 25s
Arrangement Right hand (retract the paper from the paper exit, the drive is on the right)
Dynamic balance level G1.6
Paper core 3”
Color to be determined
The rewinder is mainly composed of a mechanical part, a hydraulic and pneumatic part, an electric control part and the like.
The specific technical structure is described as follows:
Zhengzhou EAST IMPORT AND EXPORT co., ltd . ( a goulian group of company) a manufacturer and exporter for all kind of packaging machinery , like bopp tape coating machines, bopp tape slitting machines. Bopp tape core cutter, bopp tape core loader etc