The paper laminating machine is also called laminating machine or laminating machine. It is used for laminating and bonding pre-printed color printing facial paper and corrugated cardboard. It is an important supporting equipment for the production of pre-printed carton. It has the production efficiency and quality of corrugated cardboard processing. With a certain impact, with the continuous development of the social economy, the application of pre-printed carton boxes is becoming more and more extensive, the structure of the laminating machine is becoming more diversified and automated, and the manufacturing technology and performance are becoming more mature and advanced. The structure and performance are different, and the effect of mounting and bonding corrugated cardboard and facial paper is also very different. Therefore, the correct purchase and use of the coating machine is an important part of improving the production efficiency and quality of the carton.
However, just like all mechanical equipment, the laminating machine is unavoidably strained during long-term operation, so the laminating machine is maintained to ensure the quality of the laminating process and avoid printing problems caused by the abrasion of the laminating machine. It is a task that must be completed by various carton enterprises, carton production lines and paper laminating machine operators. In the daily use of the paper laminating machine, it is necessary to focus on solving the following problems.
1. Control of production operations
When the color-printed facial paper is thin and curled, the speed of the machine should not be too fast. When loading tissue paper and corrugated board, the relative positions of them should be aligned to avoid the deviation of the positioning of the paper output, resulting in inaccurate lateral lamination. If the stroke of the upper and lower chains of the machine is not adjusted, there is a deviation in the front and rear positions; the paper stopper of the stacking table does not close to the edge of the paper, causing the stack to move left and right, and the curled cardboard is not flexible Pinghe did not neatly organize the cardboard, etc., which would also cause errors in the placement of facial tissue and corrugated cardboard.
Therefore, the production speed of the machine should be reasonably controlled according to the characteristics of the facial paper; the relative position of the facial paper and the corrugated cardboard should be aligned when loading the paper; the travel of the upper / lower chain must be accurate; the stacking of the upper / lower paper should be aligned The paper stopper of the paper table is fixed; the uneven and curled cardboard should be smooth.
2. Machine feed and positioning mechanism
If the machine is improperly adjusted or maintained, it is also easy to cause errors in the face paper and corrugated cardboard mounting. The main reasons are:
1) The paper feeding chain mechanism is loose, making the working coordination of the upper / lower chain inconsistent or unstable;
2) The front rule on the upper / lower chain is loose, which causes impact on the edge of the paper when feeding;
3) The contact position of the paper pressing steel strip to the facing paper is uncomfortable or the gap is too large, and it does not play a role in slowing down the inertial impact force of the cardboard at high speed;
4) The upper / lower rolling rollers do not often clean and accumulate a certain amount of glue, which prevents the simultaneous rolling of paper or corrugated cardboard.
The existence of these undesirable conditions can easily cause inaccurate mounting of facial paper or corrugated cardboard. Therefore, the chain of the machine should be cleaned and cleaned in a timely manner, and maintain good lubrication; the loosening of the front rule should be taken in time to deal with the corresponding measures; adjust the position of the pressed steel strip to maintain a certain friction with the cardboard Force to prevent the paper from being too violent and ahead of time; the glue or dirt on the upper and lower rollers should be cleaned regularly.
3. Cardboard laminating error caused by unsuitable gap between upper / lower rollers and poor paper feeding
When the gap between the upper and lower rolling rollers is not suitable, after the mounted corrugated cardboard passes through the upper and lower rolling rollers, on the one hand, it is easy to cause displacement between the facial paper and the corrugated paper or make the facial paper blistering, on the other hand It is easy to deform corrugated cardboard under pressure. If the sheet is not conveyed normally and there are empty sheets or skews, it is easy to cause blistering, degumming (the length of the cardboard on the conveyor belt is not the same, and the pressure is uneven) and the quality of the mounting is not allowed.
In this regard, the gap between the upper / lower rollers should be adjusted to match the thickness of the paperboard to be mounted, so that the pressure of the paperboard when passing through is appropriate to prevent foaming, degumming or corrugated deformation quality problems.
4. To do the correct use and maintenance of the machine
The automatic paper laminating machine has high mechanical accuracy, which is a reliable guarantee for production efficiency and quality. Therefore, it is necessary to pay attention to the correct use and maintenance of the machine. This is an important link to prevent abnormal wear and damage of the machine.
After the new machine is purchased, if the factory's own technical conditions limit it and it is not possible to train the production operator by itself, the equipment supplier should be asked to send a technician to train the equipment operator to ensure that the machine can be used correctly and played normally after the purchase.
During the running-in period of the equipment, the production speed of the machine should not be too fast, generally it should be controlled at about 3000 sheets / hour. During the trial production of equipment, it is necessary to pay attention to whether the machine is kept normal by "watching, smelling, touching" and other methods.
Observation is to pay attention to see if the working status and movement of the relevant parts of the machine are abnormal;
Smell is to pay attention to whether there is abnormal sound from the machine;
Touching means that when the machine has just been running for a period of time, it is necessary to stop in time to touch some of the rotating shafts, gears and other rotating parts of the machine, whether there is a significant temperature increase and an abnormal hot feeling.
If abnormal phenomena are found, they should be immediately shut down for inspection, and any problems found should be dealt with in a timely manner.
During the use of the machine, the operation must be strictly in accordance with the requirements of the equipment manual, and the lubrication and regular maintenance work of the machine must be done. This is an effective guarantee to ensure that the equipment maintains good accuracy, improves production efficiency and quality.
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