Unwinder

Depending on the different speeds of the production line, the rewinding method and the control requirements, the unwinding machines can mainly be divided into two categories: fixed-type unwinding machines and arm-type unwinding machines.

The characteristics of RIGO Unwinding Machines:

a. Automatic tension control (core feature)

b. High rigidity frame, strong load-bearing capacity, stable operation;

c. Paper feeding without stopping, continuous production, improving production efficiency;

d. Convenient operation, safe and reliable;

e. Suitable for various raw materials;

（1）Fixed Type Unwinder

1.Paper roll  2.Air expansion shaft  3.Transition roller  4.Frame  5.Tension control unit

1. Main structure

The main components of the unwinding machine include the frame body, air expansion shaft, transition roller, frame, tension control unit, etc. The air expansion shaft is fixed on the frame by a safety sleeve and is used to support the roll material.

2. Main technical parameters:

Maximum diameter of paper, maximum weight of paper roll, width of paper roll, inner diameter of paper roll;

3. Working principle

The fixed-type unwinding machine adopts a double-axis unwinding method. The paper feeding mechanism of the unwinding machine ensures that the production line can still operate continuously and normally when the paper roll is rewound.

(2)Arm-type Unwinding Machine
The arm-type unwinding machine can be divided into active unwinding and passive unwinding based on the power mode:

1. Unwinding motor  2.Frame  3.Transition roller  4.Arm assembly  5.Air shaft

   6.Paper roll

1. Main Structure
   The unwinding machine consists of the unwinding motor, frame, transition roller, arm assembly, air shaft, and other components. The passive unwinding type of the arm-type unwinding machine does not have an unwinding motor.

2. Main Technical Parameters
   Maximum paper roll diameter, maximum paper roll weight, paper roll width, paper roll inner core diameter.

3. Working Principle
   The arm-type unwinding machine adopts a double-axis rotary unwinding method. During roll change, the unwinding machine works in coordination with the cutting device, ensuring continuous operation of the entire production line without stopping during the roll change process.