Hot Sell Spiral Paper Tube Core Making Winding Machine

What is a Paper Tube Making Machine?

A paper tube making machine is an industrial system designed to produce cylindrical containers and cores by winding multiple layers of paper (or paperboard) onto a mandrel with the use of adhesive. These machines transform raw materials—paper in jumbo rolls and adhesive—into finished products like mailing tubes, fabric rolls, industrial cores, and packaging containers.

The complexity and size of these machines can range from small, semi-automatic benchtop units to large, fully automated production lines.

Key Components of a Paper Tube Making Machine

A typical machine consists of several integrated stations:

1. Unwind Stand(s): Holds the large jumbo rolls of paper (called "slitting rewound rolls"). Larger machines have multiple stands to allow for different paper grades or layers.

2. Gluing System: Applies a precise, controlled amount of adhesive to the paper web. This can be a spray, roller, or slot nozzle system. Water-based glues (like PVA) are most common.

3. Forming Belt / Driving Belts: A series of continuous belts that wrap the glued paper around the central mandrel with consistent pressure. This is the core of the winding action.

4. Mandrel (Heart of the Machine): A hardened, polished steel shaft around which the paper is wound. Its diameter determines the inner diameter (ID) of the finished tube. Machines often have a carousel or magazine of mandrels for continuous production.

5. Cutting Unit: Cuts the continuous wound tube into specific lengths. Methods include:

   · Saw Cutting: A circular saw that moves with the tube for a clean, square cut.

   · Shear Cutting: A blade that chops the tube without generating dust.

   · Fly Knife Cutter: A high-speed rotary cutter for very high production rates.

6. Drying System (Optional but common): Dries the adhesive quickly to ensure the tube maintains its shape and strength. This can be:

   · Infrared (IR) Heaters: Localized heating at the winding point.

   · Hot Air Tunnels: A long chamber the tubes pass through after being cut.

   · Radio Frequency (RF) Dryers: Very efficient method that heats the adhesive from the inside out.

7. Control System: A PLC (Programmable Logic Controller) and HMI (Human-Machine Interface) touchscreen panel to control all parameters: speed, length, glue amount, etc.

8. Ejection/Collection System: Conveyors or arms that neatly stack the finished tubes for collection or further processing (e.g., end capping).

The Paper Tube Manufacturing Process

The process is continuous and can be broken down into four main steps:

1. Unwinding and Gluing: The paper web is fed from the unwind stand through the gluing unit, where adhesive is applied to one side.

2. Winding and Forming: The glued paper is fed onto the rotating mandrel. The forming belts apply pressure, wrapping the paper tightly around the mandrel. The number of layers is determined by the number of paper webs being fed.

3. Cutting to Length: Once the desired number of layers is achieved and the tube is formed, the continuous tube is pushed forward and cut to the pre-set length by the cutting unit.

4. Drying and Ejection: The cut tubes are moved through a drying system (if equipped) to cure the adhesive and then ejected onto a conveyor or collection rack.