Hot Sale 100kg 200kg 300kg Electric Rotary Stacker Roll Lifter Film Lifter

Hot Sale 100kg 200kg 300kg Electric Rotary Stacker Roll Lifter Film Lifter

All-electric paper tube air shaft expansion roll lifter adopts air shaft or mechanical special design way, it is convenient to insert into the hole of the paper tube, then fork up the horizontal or vertical paper tube, rotate 90 degrees to make the vertical become horizontal, and the horizontal become vertical. The outer and inner widths of the bottom legs are customised according to the outer diameter of the customer's rolls, or there is no bottom leg structure, which is convenient for all kinds of pallets, machines or directly put on the ground to work on the tube.

1. Automatic rotating function: Equipped with an automatic rotating device, it is easy to place and handle film paper rolls, improving operational efficiency.
2. High flexibility: it can adapt to various places and working conditions, and can carry out handling operations in narrow spaces with great flexibility.
3. Good safety: Equipped with safety devices, it can ensure the safety of handling operation.
4. Suitable for papermaking, adhesive tape, film, aluminium foil, chemical industry, printing, weaving and other industries, saving labour costs and greatly improving work efficiency.

Application principle of motorised shaft film winder

The application principle of a motorized shaft film winder involves the controlled unwinding or winding of a roll of film material onto a shaft using motorized components. Here's a breakdown of the application principle:

Roll Loading: The process begins with loading a roll of film material onto the winder. The roll is typically mounted onto a shaft or mandrel, which is supported by bearings and driven by a motorized system.

Tension Control: Before the winding process starts, the tension of the film material needs to be controlled to ensure smooth and uniform winding. Tension control mechanisms, such as pneumatic brakes, electromagnetic clutches, or dancer arms, are often used to regulate the tension applied to the film as it unwinds from the roll.

Alignment and Guiding: Proper alignment and guiding of the film material are essential to ensure even winding and prevent wrinkles or misalignment. Guide rollers or bars are used to maintain the correct position of the film as it travels from the unwinding roll onto the winding shaft.

Winding Process: Once the tension and alignment are established, the motorized shaft begins rotating, pulling the film material from the unwinding roll onto the winding shaft. The speed and direction of rotation can be controlled to achieve the desired winding pattern, tension level, and roll diameter.

Tension Control (Winding): Similar to the unwinding stage, tension control mechanisms are also employed during the winding process to maintain consistent tension on the film material as it is wound onto the shaft. This helps prevent over-tensioning or slackness, which can lead to wrinkles, deformation, or breakage of the film.

Speed Control: The speed of the winding process can be adjusted based on factors such as the desired winding tension, the thickness of the film material, and the diameter of the winding roll. Motor speed controllers or variable frequency drives (VFDs) are commonly used to regulate the speed of the motorized shaft.

End-of-Roll Detection: Sensors or detectors may be integrated into the winder to detect the end of the film roll. Once the end of the roll is reached, the winding process can be automatically stopped or signaled to alert operators for roll changeover.

Safety Features: Motorized shaft film winders are equipped with various safety features to protect operators and prevent accidents. These may include emergency stop buttons, safety guards, interlocks, and overload protection devices.

By following these principles, motorized shaft film winders can efficiently unwind or wind film material onto shafts, providing precise control over tension, alignment, and winding speed. This allows for the production of high-quality rolls of film suitable for various applications in industries such as packaging, printing, laminating, and converting.