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Which types of correction methods are mainly used for color coating units


Release time:

2020/12/10

The color coating unit mainly adopts the following three correction control methods.A.Uncoiling deviation correction(centering)control In order to accurately feed the strip into the center line of the unit,a correction(centering)control device should be installed on the uncoiler

The color coating unit mainly adopts the following three correction control methods.A.Uncoiling deviation correction(centering)control In order to accurately feed the strip into the center line of the unit,a correction(centering)control device should be installed on the uncoiler,because the incoming coil may be irregular,staggered or tower-shaped,or During the winding process,the coil is not aligned with the centerline of the unit.All of the above situations need to be corrected during the roll-up process.

There are generally two forms of unwinding correction:one is a dual detection bald system,that is,a centering system,referred to as CPC(Centerpositioncontr01).Two groups of detection bald heads are set symmetrically to the center line of the unit.Through a positive and negative buckle screw,a step by step The forward motor will move in the opposite direction,that is,move inward or outward synchronously.When the strip begins to thread and enter the unit,the bald head moves inward.When one of the bald heads detects the edge of the belt,it indicates that the strip has deviated in this direction.At the same time,it sends a signal to move the uncoiler to drive the strip to move until both bald heads When the strip is detected and the outputs on both sides are equal,the bald head stops moving,the uncoiler stops moving,and the strip is already in the center position.The advantage of this method is that there is no need to consider the width of the coil during the winding operation,and the system can automatically center the center;the other method is to control the edge position of the strip by detecting the edge of the strip fed into the unit Fixed position,referred to as EPC(Edgepositioncontr01)for short.The bald frame is installed on the drive side of the unit.First,set the position of the detection head according to the width of the incoming material.When the uncoiled strip is sent to the unit,the detection bald head will send a signal according to the condition of being covered by the strip(the degree of full cover,full bright,and half cover),and move the uncoiler so that one side of the coil is always in the half-covered position of the bald head.The advantage of this method is that the single optical head is relatively simple,but the original position of the optical head must be adjusted according to different bandwidths before operation.

When the steel strip enters the exit section from the process section,it first enters the exit looper device.The correction device installed before the exit looper is to ensure that the steel belt is in the centering state before entering the looper;the correction device after the exit looper is to ensure that the steel belt is in the centering state before entering the exit section.The function of the exit tension device is to divide the tension between the exit loop and the exit section of the steel strip.When the coiler changes the coil or cuts the steel strip,the pressure roller is pressed down to pull the steel strip and maintain the tension in the exit loop.Normal production of tension and process section.The exit cross-cutting shear is a single-layer shearing machine,which is used to cut off the seam of the steel strip when it is split.The front pinch roller of the coiler has two functions.One is to position the seam when the cross-cutting machine cuts the seam.The other is to introduce the film head of the next roll after the previous roll of color plate is rolled and unloaded.Coiler.When the unit is operating normally,the pinch roller is open.The structure and technical requirements of the pinch roller are similar to those of the population pinch roller.The steel strip enters the tension device and pinch roller from the exit looper through the steering roller,and reaches the coiler through the exit shear and exit steering pinch roller.

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