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Up-feeding / Frame Type / Bottom-feeding rewinder

Short Description:

The rewinder is a special equipment for paper, mica tape and film. Its purpose is to rewind the paper rolls (called base paper rolls) produced by the paper machine in turn, and the paper is rewound to make finished paper.

The working principle of the rewinder: The paper roll removed from the paper machine is placed on the unwinding stand. The braking device on the unwinding stand keeps the paper web in a certain tension, and makes the paper roll quickly brake when the paper is broken. to reduce paper loss. The paper web is cut to the required width by the draw roll and slitter structure, and then wound into rolls according to the required tightness and diameter.

Product Detail

Product Tags

Up-feeding / Frame Type / Bottom-feeding rewinder


Slitting And Rewinding Equipment is mainly used to slit sticker paper, craft paper and other kinds of paper,as a part of Paper Machine Equipment.The rewinder is a special equipment for paper, mica tape and film. Its purpose is to rewind the paper rolls (called base paper rolls) produced by the paper machine in turn, and the paper is made into finished paper after rewinding. Factory. It has become a development trend in the Paper Machinery industry to replace the DC drive with the AC drive of the rewinder. The paper roll rolled by the reeling machine is relatively soft, the inside may be damaged or broken, the edges on both sides are not neat, and the width of the paper cannot be directly used in paper processing or printing machines. Most paper types (such as newsprint) , letter press printing paper, wrapping paper, etc.) must be trimmed, slit, spliced by the rewinder, and re-rolled on the core of the paper roll to form a finished paper roll of a certain specification and a certain tightness before leaving the factory.

Machine type:

1. Up-feeding rewinder    ( Applicable machine speed ≤500m/min )
2. Frame Type Rewinder ( Applicable machine speed 500m/min -- 1000m/min )
3. Bottom - feeding rewinder ( Applicable machine speed ≥ 1000m/min )

Work principle:

1. The roll paper removed from the paper roll is placed on the paper ejection rack.
2. The paper ejection rack is equipped with an AC frequency conversion motor and a photoelectric encoder to maintain a uniform tension in the paper web.
3. The paper web is pulled out from the paper roll, passed through the upper paper feeding device and the guide roller device, and after being stretched by the arc roller, it is slit by the slitting system, and then passes the arc roller and the paper device to bypass the back support roller The paper roll is wound on the paper roll.
4. The paper roll is driven by two supporting rollers to drive the whole paper sheet forward.
5. This machine has the function of counting length and diameter, and can realize automatic stop of fixed length or fixed diameter.

Supply Scope:

The control system of this rewinding machine mainly includes:
1. Adopting imported digital AC variable frequency speed governor and photoelectric encoder to form dual closed-loop control of speed and current;
2. Program control of torque difference between front and rear bottom rollers;
3. Closed-loop control of paper web tension;
4. Paper guide Tracking control of roll-to-paper speed;
5. Automatic control of the pressure of the platen roller;
6. Settable curve tracking control of the paper speed by the slitter blade;
7. Control of the speed and overspeed protection of the ejection motor;
8. Overvoltage, overcurrent, and overheating of each motor Protection control;
9. Paper break detection and brake control; diameter detection and fixed-diameter parking control;
10. Pneumatic and hydraulic motion control; safety interlocking control, thereby achieving uniform roll hardness, flat cutting disc surface, easy to divide and ensure reliable and safe operation .
Note: It is composed of AC inverter, programmable controller and human-machine interfaceIt is controlled by digital communication system. KTP-1200 touch control screen is equipped on the console. All parameters can be displayed through touch control screen. Advanced control, convenient operation and observation.

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