Post-press process technology: how to solve the problem of the placement of tiled paper
The color paper box paper placement will cause problems such as sticking flowers on the surface, dirt and die cutting, and is also one of the most difficult problems to control in the paper mounting process. The following editor will provide a set of solutions to this problem.
(1) 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.
(2) Improper adjustment or maintenance of the paper feeding and positioning mechanism of the machine can also easily cause errors in the mounting of facial paper and corrugated cardboard.
a. The paper feeding chain mechanism is loose, which makes the working coordination of the upper / lower chain inconsistent or unstable;
b. The front regulations on the upper / lower chains are loose, causing impact on the edges of the paper when feeding;
c. The contact position of the paper pressing steel strip to the facing paper is uncomfortable or the gap is too large, which does not play a role in slowing down the inertial impact force of the cardboard at high speed;
d. The upper / lower rollers do not clean and accumulate a certain amount of glue frequently, which prevents the synchronous roller conveyor of facial paper or corrugated cardboard.
(3) The gap between the upper / lower rollers of the machine and the paperboard mounting error caused by poor paper feeding
When the gap between the upper and lower rollers is not suitable, the corrugated cardboard after mounting passes through the upper and lower rolling rollers, which causes displacement between the facial paper and the corrugated paper.
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 inter-coupling between the cardboards on the conveyor belt is different, caused by uneven pressing of the paper), and the quality of the mounting is not allowed.
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