Used Slitter Rewinder

Used Slitter Rewinder

The machine is suitable for slitting of BOPP, pet, CPP, CPE, PVC, PE, aluminum foil, paper and other coiled materials, and for trimming and slitting materials according to different needs in the production process.

The slitting machine blade is one of the important parts of the slitting machine equipment. The improper selection of the slitting machine blade will easily shorten the service life of the slitting blade and fail to meet the requirements of the slitting index. The slitting material will produce burrs and a large amount of slitting powder. When we replace the new cutting machine blade, how to install and adjust it correctly has become a small problem for customers.

The knife of the slitter is installed on a roller, and the screw at one end of the guide roller can be disassembled, and the knife can be disassembled and assembled from there. This is the installation of the top knife. There is also the installation of the bottom knife, you need to calculate the width of the slitting, and select the corresponding device. The installation of the bedknife focuses on calculating the slitting width, and the installation is very easy.

In the slitting process, a stable tension system is an important indicator to ensure product quality. It controls the mutual tension between unwinding, traction, slitting, rewinding, etc., so that the slitting material is always in the slitting process. A state of stability. If the tension is properly controlled, it can avoid the deformation and drift of the raw material during the machine's speed up and down. Generally, the unwinding tension is slightly greater than the sum of the winding shaft tensions.

Feature

1. This machine adopts the method of central coiling and surface contact and coiling

2. The whole machine is controlled by PLC and operated by touch screen man-machine interface

3. Automatic meter counting, alarm and other functions;

4. The winder adopts a and B inflatable shaft structure, which is convenient for loading and unloading;

5. The unwinding adopts the photoelectric automatic correction system, which enables the irregular material to be cut normally

6. Automatic discharge device of flat knife longitudinal cutting waste edge

Basic specification

Precautions for use

1. The machine power supply uses a three-phase four-wire system (AC380V) and is safely grounded to ensure the safety of operators

2. The host speed should be adjusted to the lowest speed before starting up

3. Pay attention to safety when installing the blade to prevent the blade from scratching

4. Regular maintenance should be made to the place where the machine needs to be refueled

For the fully automatic slitting machine, it is very important to do a good job of debugging before the formal operation, so what are the debugging tasks in general?

In the use of the automatic slitting machine, when turning on the power, it is necessary to check whether the static elimination mode has been turned on. This is to prevent the machine from malfunctioning during operation and causing unnecessary losses. Next, turn on the air supply switch of the slitter and adjust it to between 0.5 and 0.6. The adjustment of the air pressure is very critical because it will affect the stability of the operation. After the adjustment, use three to six cones to put the mother roll into the roll section.

After the parent roll is put into the roll section, the machine needs to be debugged. It is necessary to compare the diameter of the mother roll, press the up or down button, adjust the unwinding rack to a proper height, and then clamp the roll film to make it It can rotate at a constant speed or quickly, and then press the height adjustment button again to confirm the safety. Then to install the blade, first check the blade edge to see if there is any damage, and then select the appropriate slitting method according to the need to adjust the placement of the blade.

The paper core is adjusted so that the paper can be placed in a relatively correct position, so that the cut paper will be very uniform. After all the debugging work is completed, the slitting machine must be tested in a unified way. When the products produced by the trial run have no problems, they can be used.

Therefore, when the automatic slitting machine is being debugged, these details must be done well to ensure its good performance.

Common cutting methods are:

Edge trimming, cutting off the process edge material reserved in the previous process, which is mostly used for the processing of composite films and other materials;

Cutting, cutting the wide web into multiple rolls of narrow specification size materials;

Sub-rolling, dividing the large-diameter material into several rolls of small-diameter material, which is equivalent to rewinding;

etc.

At present, the products of the slitting machine are affected by many factors. Therefore, as a slitting machine manufacturer, you need to understand these elements and then make corresponding measures. This can increase the production capacity of the slitting machine. Let's analyze it together. :

1. Tension control of unwinding

During the rewinding of a set of paper rolls, try to prevent changing the rewinding tension to ensure that the slitting rewinder is evenly tight. Secondly, during the rewinding process, if the tension control of the paper web is too small, the paper roll will loosen or slip on the bottom roller, forming wrinkles, interleaving paper pages and other problems. If the tension is too large, it will cause a burst or damage the paper core. Therefore, it is very necessary to keep the actual control value of tension constant during the rewinding operation of the paper web and to install an outstandingly debugged inertia instantaneous compensation regulator in the tension closed-loop control system.

2. The linear pressure of the platen roller

The platen roller pressurizes the paper roll during the rewinding process. In the initial stage of rewinding, the platen roller supplies extra load to the paper roll, and together with the front and rear bottom rollers, it provides a rewinding force to the paper roll. With the increase of the roll diameter, the position of the platen roller gradually rises, and the load supplied by the platen roller gradually decreases. When the roll diameter reaches a certain value, the load supplied by the platen roller is zero. At this moment, it is only used as a holding The paper roll position equipment exists, and the pressure control procedure of the platen roller must be selected according to the paper quality and the final diameter. Under normal circumstances, the pressure of the platen roller is automatically controlled according to the pre-set pressure curve, and the operator does not need to change it.

3. The speed difference between the front and rear support rollers

The speed difference of the supporting rollers forms the rewinding force. The size of the rewinding force determines the tightness of the paper roll. Increasing the rewinding force of the slitter rewinder can increase the tightness of the paper roll. Starting from these aspects, it should be able to analyze If the problem lies, just prescribe the right medicine.

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