Paper Carrier Ropes Work Principle and How To Splice

How the Paper Carrier Rope Transports the Paper Web

A typical paper feeding system usually consists of two paper carrier ropes, which we refer to as the inner and outer paper carrier rope.

When the paper carrier ropes are in operation, the two cords run close together to form a stable pressure zone, so they can hold the paper web in place and convey it to the next process.

When Using the Paper Carrier Rope, You Should Notes

The inner and outer paper carrier ropes must always remain below the paper strip to ensure that the web is fed steadily during transport.

The outer paper carrier rope and the inner one work together to generate clamping pressure, ensuring that the paper web remains stable during operation and does not come loose or sway.

Therefore, successful paper feeding depends not only on the paper carrier ropes themselves but also on the condition of the paper web state, the feeding speed, and the operating condition of the paper carrier rope.

Factors Affecting Paper Carrier Rope Threading Success

Even if the paper carrier rope is operating correctly, improper control of the paper strip's condition can still lead to a failure in the paper threading process.

Paper Feed Speed

If the speed of the paper carrier rope system is too high, the paper web will be prone to snapping.

Moisture in the Paper Strips

When the moisture content of the paper strip is too high, its transverse stiffness decreases, making it more prone to oscillation or deviation toward the operator side (TS side), which affects the smooth entry of the paper strip into the paper carrier rope gripper zone.

Paper Strip Width

If the width of the paper strip is too narrow,will reduce the effective contact area with the paper carrier rope, thereby diminishing gripping capability and increasing the risk of paper strip drift or "take-up" failure.

Paper Sheet Tension

During the paper feeding process, you should avoid pulling the paper sheet too tightly at the beginning.

It is generally recommended to keep the strip slightly slack initially and to adjust the tension gradually only after it has stably entered the threading system.

The Questions You May Encounter When Using a Paper Carrier Rope

In addition to the paper strip itself, the operating condition of the paper carrier rope is equally crucial to the sound quality.

One of the more common issues is paper carrier rope tracking.

This problem causes the paper not to be delivered properly.

Typically, if the rope misalignment is minor, the problem can be resolved by inserting a strip of stiff paper while the machine is stopped, or by automatically adjusting the position of the paper-threading rope while the machine is running.

How To Splice the Paper Carrier Rope

Undeniably, the use of paper carrier ropes reduces the need for extensive manual intervention during paper machine operation, thereby helping to avoid the safety hazards associated with such tasks.

However, the safer tasks of correctly using, replacing, and connecting the paper carrier rope still require human intervention.

Here, we will show you the four important steps for the paper carrier rope splice

Mark the Correct Splice Length On the Paper Carrier Rope

The first very important element of the whole splice is the length.

You should first make marks approximately 800 mm and 1800 mm from the ends of the two sections of paper carrier rope to be joined.

These reference points define where the splice starts and ends, ensuring sufficient overlap to achieve the required tensile strength.

Insert the Paper Carrier Rope with the Splicing Needle

And then, insert the end of one of the carrier ropes into the mesh like end of the threading needle (press the meshlike end firmly with your fingers to ensure the rope does not slip out).

When making the splice, you should make sure the needle enters the paper carrier rope at all times

Insert the tip of the threading needle into the other section of the carrier rope at the point marked 800 mm.

You should pay attention that do not to pass the needle directly through the strands of the carrier rope.