Analysis on daily maintenance of laminating machine

The laminating machine is also known as veneering machine or covering machine used for pasting and bonding the pr-eprinted color printed facial paper and corrugated board. It is an important supporting equipment for pre-printed carton production, which has a certain influence on the efficiency and quality of corrugated board processing. With the continuous development of social economy, the application of pre-printed cartons is more extensive, the structure of laminating machine tends to be diversified and automated, and the manufacturing technology and performance are more mature and advanced. Because of the different structure and performance of laminating machine, the pasting and bonding effect of corrugated board and tissue paper is also different, so the correct selection and use of laminating machine is an important part to improve the production efficiency and quality of cartons.
In the increasingly fierce competition in the carton industry, the printing quality of products has also become an important means for enterprises to attract customers and occupy the market, and the importance of paper pasting machine has been paid more attention by enterprises, due to the fact that it is an important tool for printing laminating process.
High-quality laminating machine can provide high-precision bonding quality, and protect the corrugated board from being damaged in the bonding process, which is making the carton more beautiful after molding, and win the love of customers and final buyers.
However, just like all mechanical equipment, it is inevitable that the laminating machine will be damaged in the long-term operation. Therefore, it is necessary for all carton enterprises, carton production lines and operators to maintain the equipment, ensuring the quality of the process of laminating machine and avoiding printing problems caused by the wear of the laminating machine. The specific maintenance of paper laminating machine can be divided into:
1.Control of production operation
When the color-printed facial paper is thin and curly, the speed of the machine should not be too fast. When packing paper and corrugated board, their left and right relative positions should be aligned, so as to avoid inaccurate lateral mounting due to biased positioning of paper. If the travel of the upper and lower chains of the machine is not aligned, there is a deviation between the front and rear positions; The paper blocking and limiting device of sheet piling. Platform is not close to the paper edge, which causes the paper pile to move left and right, and the curled cardboard is not softened and tidied when loading paper, which also causes errors in the mounting position of tissue paper and corrugated cardboard.
Therefore, the production speed of the machine should be reasonably controlled according to the characteristics of surface paper. When loading paper, align the relative positions of surface paper and corrugated board. The travel of the up/down chain must be accurate; after the upper/lower paper is aligned, fix the paper stop and limit device of sheet piling platform. For uneven, curly cardboard to be soft and flat.
2.Paper feeding and positioning unit
If the machine is not properly adjusted or maintained, it is easy to cause errors in the mounting of surface paper and corrugated board. The main reasons are as follows:
1 > The paper feeding chain mechanism is loose, which makes the upper/lower chain work inconsistent or unstable;
2 > The front gauge on the upper/lower chain is loose, which causes the paper edge to collide when feeding paper;
3 > The contact position of the paper-pressing steel strip with the paper is uncomfortable or the gap is too large, which does not make an effect in slowing down the inertial impulse of the cardboard when it moves at high speed;
4 > The upper/lower roller is not cleaned frequently and accumulates a certain amount of glue, which hinders the synchronous rolling transportation of paper or corrugated board.
The existence of these bad conditions is easy to cause errors in the process of laminating facial paper or corrugated board is not allowed. Therefore, the chain of the machine should be cleaned in time and kept well lubricated; For the loose front gauge, corresponding measures should be taken in time to deal with it; adjust the position of the paper pressing steel strip to keep a certain friction with the cardboard to prevent the paper from being fed too hard and ahead of time; Always clean up the glue or dirt on the upper and lower rolling rollers.
3.Paperboard mounting error caused by improper gap between upper and lower rolling rollers and poor paper feeding.
When the gap between the upper and lower rolling rollers is not suitable, after the pasted corrugated board passing through the upper and lower rolling rollers, on the one hand, it is easy to shift between the surface paper and the corrugated paper or make the surface paper bubble, on the other hand, it is easy to deform the corrugated board under pressure. If the surface paper is not transported normally, it will be empty or skewed, which will easily lead to foaming, degumming (caused by different lengths of cardboard on the conveyor belt and uneven paper pressing) and inaccurate pasting. In this regard, the gap between the upper/lower rolling rollers should be adjusted to suit the thickness of the pasted cardboard, so that the pressure when the cardboard passes through is moderate, so as to prevent the occurrence of quality problems such as foaming, degumming or corrugated deformation.
4.The correct use and maintenance of the machine should be done well.
Automatic paper pasting machine has high mechanical precision, which is a reliable guarantee of production efficiency and quality. Therefore, attention should be paid to the correct use and maintenance of the machine at ordinary times, which is an important link to prevent abnormal wear and damage of the machine. Automatic paper pasting machine has high mechanical precision, which is a reliable guarantee of production efficiency and quality. Therefore, attention should be paid to the correct use and maintenance of the machine at ordinary times, which is an important link to prevent abnormal wear and damage of the machine.
After purchasing new machines, if the factory cannot train the production operators by itself due to its own technical conditions, it should ask the equipment supplier to send technicians to train the equipment operators at home to ensure that the machines can be used correctly and play normally after the purchase.
During the running-in period of the equipment, the production speed of the machine should not be too fast, and generally it should be controlled at about 3000 sheets/hour. In the process of trial production of equipment, we should pay attention to checking whether the machine is under normal condition by means of "observing, smelling and touching".
View, which is to pay attention to see if there is any abnormality in the working state and action of the relevant parts of the machine;
Smell, which is to pay attention to listen to the machine for abnormal sound;
Touch, the machine has just been running for a period of time, it is necessary to stop at the right time to touch some rotating parts such as rotating shafts and gears of the machine, whether there is an obvious temperature rise and an unusually hot feeling.
If abnormal phenomena are found, stop the machine immediately for inspection, and handle the problems in time.
When the machine is in use, it must be operated in strict accordance with the requirements of the equipment manual, and the lubrication and regular maintenance of the machine should be done well, which is an effective guarantee to ensure that the equipment maintains good precision and improve production efficiency and quality.
As an important supporting equipment for pre-printed carton production, paper laminating machine is one of the production factors that cannot be ignored in carton production and processing quality. Therefore, only by thoroughly understanding the market dynamics of paper laminating machine, reasonably selecting machines suitable for production according to the actual situation of the factory and the characteristics of products, and correctly using and maintaining them, the purchased equipment play its best role in improving production efficiency and product quality.