The Working Principle of Aluminum Plate Winding Machine

For such a device as a winder, many people know what functions this machinery and equipment has, but what is its working principle? The following is an introduction for everyone.

The working principle of the winder

Coiling power by the motor through the reducer drive the head (hereinafter referred to as up force head) rotation, through the motor control to ensure that the linear speed of the rolled plate and the output of the mill rolling steel plate linear speed synchronization.

The up-force head up and down and unload the volume is through the control of the hydraulic system to achieve.

(1)   Winding station. When closing the volume, push the plate cylinder in the back shrinkage position, push the plate back, up force head exposed, up shrinkage cylinder back shrinkage, pull the expander through the tie rod to make up force head bow-shaped plate outward propped open, at this time up force head outside diameter by the user to determine, connected steel can be closed.

(2)   Take the volume station. The winding machine up force head push rod in the action of the up and down cylinder move forward, push the expander so that the up force head bow-shaped plate retracted, loosening has been wound up the steel plate reel, pick up the material trolley to up force head direction to move to the lower part of the tape, the top pick up the material device up and the lower part of the tape close, and then push the plate cylinder piston forward movement, push the plate forward to push out, will have been wound up the steel plate reel pushed away from the winding machine, while pick up the material trolley outward and push the plate synchronization Move.

The winder with tension reel is used in reversible or irreversible cold rolled steel sheet or strip rolling line.

This winder is not only used to roll (unroll) the rolled parts, but also make the rolled parts to produce tension, which is to make the rolling process to maintain stability, so that the plate rolled tighter, and make the rolled parts in the feed rolls and rolled from the rolls in the correct direction.

In the rolling process, it is generally necessary to maintain a front tension and back tension.

Relying on these tensions, you can reduce the pressure acting on the rolls when rolling, and reduce the warpage of the strip, which is conducive to improving the surface quality of the strip.

In the single-seat reversible cold rolling mill, before and after the mill are equipped with tension reel winder, they alternately become active or passive; that is, a roll and the other unrolled.

In continuous or irreversible single-seat cold rolling mill, only in the rear of the mill is equipped with a winder, the mill is equipped with an uncoiler before.

Aluminum plate coiling machine

When rolling the first pass, the strip is sent from the uncoiler into the mill after the work rolls, with the pressure plate or roll guide plate to compress the strip, producing little post-tension for rolling; then, the strip enters the jaws of the aluminum plate winder reel, clamping the head of the strip for rolling, producing front tension.

The disadvantage of reversible cold rolling is that both ends of the strip cannot be rolled.

In order to reduce the amount of scrap consumption at both ends, often use a large diameter steel coil or welded lead strip at both ends of the strip.

Coiling machine in the process of rolling strip, the steel coil diameter in the change, which causes constant changes in the coiling speed.

In order to make the winding speed and rolling speed to adapt, as well as strip rolling to maintain constant tension, the requirements of the winder speed is adjustable, speed range should be adapted to changes in rolling speed and coil diameter changes, for this reason, the general use of adjustable speed DC motor drive.

At the end of the rolling, the steel coil to be unloaded from the reel, therefore, the aluminum plate winder reel must be made into a cantilever type.

However, the reel is under a lot of tension to roll the strip, so the reel shaft should be subjected to a large load (including the weight of the reel, the weight of the strip roll, bending the strip and the moment caused by tension, etc.).

In order to ensure the rigidity and strength of the reel shaft, reduce the bending of the reel shaft, in addition to increase the size of the reel shaft, - generally in the free end of the reel can be installed to rotate the bracket.

When rolled strip, the bracket supports the free end of the reel; and in the unloading, the bracket is turned to the side, does not hinder the unloading.

When unloading, use the push roll machine or push roll machine with unloading trolley to push out the steel coil from the reel, and then transport away.

Only the correct understanding of the working principle of the equipment, in order to reasonably carry out the control of machinery and equipment to ensure the quality of products.