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Printing technology: the necessary adjustment of the printing machine

Announcer:Wecan Time:2017-05-26

The printing machine is composed of a paper feeding unit, a printing unit, a grooving unit, a die cutting unit and a paper collecting unit, and each part has different functions.
Feeder unit
Feeding unit: the paper feeding unit functions to deliver the cardboard smoothly and accurately to the printing unit.
Feeding unit adjustment matters
1, front baffle: control cardboard feed height, the gap set to cardboard thickness of 1.5 times, moderate distance.
2, side baffle: control cardboard feed length, by patting the plate side size of more than 2mm.
3, paper side shoot: control the length of paper feed function, pat the plate into the side baffle, 10-20mm.
4, tailgate: control cardboard feed width, rear and tailgate spacing than cardboard width 3mm
5, feed roller: control cardboard feed gap, gap adjustment through the paper roller after crushing not more than not less than cardboard thickness 0.1mm, special circumstances can be adjusted according to actual situation.
Two, the printing unit printing unit function is mainly printing, printing pattern is by the printing plate through the anilox roller on the ink transfer to the paper, show the required pattern, graphics and text.
Printing unit adjustment items
1, rubber roller: hanging roller; and each roller clearance adjustment to the same hue, printing can be consistent.
2: scraper: scraper to clean, see the use, change in time.
3. Anilox roller: parallelism should be accurate, and touch with the printing plate, and as far as possible near the zero point, contact less part of the plate pad.
4, printing cylinder: hanging plate alignment, firm, and left and right lateral movement to zero, the printing cylinder to clean.
5, printing roller: the gap is set in the premise of full color printing as possible under the light pressure, avoid gain produced by fine words is not clear, Leng marks the full version of anti white ghost, the printing crushing shall not exceed 0.2mm.
6, bite paper wheel: size minimum, press the edge of the paper 10mm above, the gap to high pressure 0.3-0.6mm, each color is less than 0.1mm.

Three ， slotting unit

The main function of the slotting unit is to press and slotting the paperboard. It mainly controls the function of carton forming.
Slotting unit adjustment matters
1, crushing wheel: gap should be less than half the thickness of cardboard, not broken as the principle.
2, the wire: the gap is about half the crushing wheel, to crush the principle.
3, slotting knife: knife cut, the gap between the knife is about 3mm, clamping paper gap of about 5mm, upper or lower seat affixed to sponge anti-skid.
4, trimming knife: knife contact, knife 6-10mm above, to vertical close.
Four， die cutting unit
Die cutting unit is mainly through the shape of the mold for cardboard die cutting
Die cutting unit adjustment:
1, be the first rubber transverse switch, make rubber and die - cutting knife has a transverse moving range at work, can improve the service life of rubber.
2, the installation of the template, the screw must start from the template is installed below the main reason, consider the mode of cutting is the template below the first contact with rubber. And the screws on the template as far as possible to install screws, in order to ensure the true roundness of the template.
3, adjust the position of the die hole, and rubber templates should be separated to avoid damage to rubber adjustment.
Five. Paper machine
Paper machine is mainly the semi-finished products stacking operation
Incoming paper unit adjustment matters:
1. Adjust the distance between the front baffle and the end of the conveyor belt. The distance is about 30mm than the width of the cardboard.
2. Adjust the distance between the paper receiving side and the paper side flap baffle, so as to make the cardboard neatly stacked.
3, adjust the belt speed, so that the delivery process is smooth, without causing random material.
Summary: of course every printing machine has its own characteristics, all of the above printing machine is basically the same as the mode of operation, if in order to better understand the characteristics of the printing machine, can according to their own company's equipment manufacturers for a detailed understanding of communication, enhance understanding of the enterprise personnel operation.

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