What are the structural characteristics of the paper winder?

Abstract: The paper winder is the first finishing equipment after the paper machine. Through the self-weight of the paper winder and the friction of the rotation of the cold cylinder, the paper from the paper winder is driven to be evenly wound, so that the paper is more uniform and can meet the needs of different papers. What are the structural characteristics of the paper winder? How to maintain the paper winder? Next, this paper will briefly introduce the related knowledge of the paper winder. What are the structural characteristics of the winder? How to maintain the winder?

What are the structural characteristics of the paper winder?

1, wound in the center of two complicated drums, and lifted in the fixed groove;

2. Variable frequency motor drive;

3. Adopt constant tension control system; Adopt photoelectric automatic editing system to edit;

4, automatic stop device, with material cutting, emergency stop function, and keep the expansion force unchanged;

5. The unwinding drum adopts a tension inflatable shaft, and the winding drum adopts a tension inflatable shaft;

6. Positioning of pneumatic feeding mechanism, pneumatic discharging mechanism and pneumatic shaft;

7. Shearing circular knife cutting can adapt to the cutting of materials with different properties;

8, equipped with a fan, the use of wind blowing scraps; Automatic counting of feeding length.

How to maintain the roll paper machine

Due to casting defects, internal stress and overload operation, the paper winder often suffers local damage, such as surface defects and scratches on the surface of the drum. The conventional repair method is welding, but welding often leads to thermal deformation or thermal stress of parts, especially thin-walled parts. Moreover, some parts are made of cast iron, aluminum alloy and titanium alloy, so it is difficult to weld, and it is not easy to use the method of welding repair. In order to solve the above problems, developed countries often use polymer composite materials for on-site repair. It is a "cold welding" technology, which can avoid thermal stress deformation. At the same time, the material has good comprehensive properties such as adhesion, compression resistance and corrosion resistance, which can meet the use requirements of various equipment parts to the greatest extent, thus effectively ensuring production at the lowest cost. Compared with traditional methods, this method can realize on-site maintenance, without disassembly and machining, with low maintenance cost and short cycle, and it plays an increasingly important role in the maintenance of winding cylinder.

Matters needing attention in the use of paper winder

When winding paper or putting paper, the winding machine must be pulled out from one end under pressure. If the pulling distance is too large, it will affect the tension adjustment of the cylinder, resulting in imperfect printing cylinder or low printing registration quality. The traction roller is used to isolate the tension of the drum or help elastic and brittle materials pass through the drum. The traction roller between the winding mechanism and the uncoiling mechanism determines the linear speed. The most common traction rollers are vise type and S type. Vacuum drum is another method to isolate drum tension. Many flexographic presses have matching rollers.

The difference between rewinder and rewinder.

In many places, there are actually great similarities. The paper roll rolled by the paper rolling machine is soft, and the inside may be damaged or broken, and the edges on both sides are irregular, so the width of the paper cannot be directly used for paper processing or printing machine.

The rewinder process mainly completes three tasks: one is to cut off the raw edge of the base paper; Secondly, cut the whole base paper into several widths that meet the user's specifications; Thirdly, control the winding diameter of the finished paper roll to meet the factory specifications. How to choose a plane depends on what you want to do. If you want to produce toilet paper, you can have a rewinder.