Automatic Adhesive Tape Slitting Rewinding Manufacturing Machine

This machine is the core piece of equipment in a tape converting factory, transforming large, master rolls of adhesive-coated material (the "jumbo roll") into finished, smaller rolls of tape ready for packaging and sale.

What is tape paper slitting rewinding machine?

Automatic Adhesive Tape Slitting and Rewinding Machine is a fully integrated system that automates the process of unwinding, slitting, and rewinding large rolls of material into multiple narrower rolls with precise widths and tight, neat roll formation. "Automatic" implies minimal operator intervention, often just for loading the jumbo roll and unloading the finished rolls.

The machine is a series of stations that the material flows through:

1. Unwinding Station:

   • Function: Holds the large master jumbo roll (which can be 1-2 meters in diameter).

   • Features: Often includes a splicing table or an automatic splice unit. This allows a new jumbo roll to be taped to the tail of the expiring one without stopping the machine, enabling continuous operation.

   • Control: A tension control system (dancer rollers or magnetic powder brakes) ensures consistent web tension from the start.

2. Web Guide System:

   • Function: Ensures the material enters the slitting section perfectly straight (laterally correct). This is critical to prevent diagonal slitting and ensure all slit strips are of uniform width.

3. Slitting Station (The Core of the Machine):

   • Function: Cuts the wide web into multiple narrow strips.

   • There are two primary slitting methods:

     • Razor Slitting/Shear Cutting: A circular razor blade is pressed against a hardened anvil roller. The material is sheared as it passes between them. This method is very common and produces a very clean, square edge. Ideal for most plastic films (e.g., PVC, PP) and some papers.

     • Crush (Score) Cutting: A circular blade is pressed with pressure directly onto a rubber-covered roller. The blade crushes or scores through the material against the roller's surface. Best for thicker, more fibrous materials like cloth tape, duct tape, or foam tapes. The edge is not as clean as shear cutting.

4. Slit Separation Section:

   • Function: After slitting, the narrow strips need to be physically separated to prevent them from overlapping or touching during rewinding.

   • Methods: Uses angled bars, "bow" rollers, or air blowers to create a gap between each strip.

5. Rewinding Station:

   • Function: Collects all the slit strips and winds them onto individual cores (cardboard, plastic, etc.) to form the final rolls.

   • There are two primary rewinding methods:

     • Surface/Center Surface Rewinding: The finished rolls are wound by being pressed against a large, motor-driven drum. The friction from the drum drives the cores. This method is excellent for producing very hard, tight rolls and is the most common method for packaging tapes and many others.

     • Center/Shaft Rewinding: Each individual core is mounted on its own motorized shaft. This allows for independent tension control for each strip. It is better for sensitive materials or when producing very large diameter finished rolls.

6. Automatic Turret Rewinder (for High-Speed Machines):

   • Function: This is a key feature for true automation. It consists of two rewinding stations on a rotating turret.

   • Process: While one station is actively winding rolls, the other station is in the "unloading position." When the rolls on the active station reach the preset length, the turret rotates 180 degrees in a fraction of a second, bringing the new cores into the winding position. The operator then unloads the finished rolls from the now-idle station and reloads it with new cores, all without stopping the machine.

7. Control System:

   • Function: The brain of the machine. A PLC (Programmable Logic Controller) and HMI (Human-Machine Interface) touchscreen allow the operator to set all parameters: roll length, diameter, tension, speed, etc.

   • It often includes automatic length measurement, fault diagnostics, and production data reporting.