subject: Routine Maintenance Of Roller Printing Methods And Techniques All Games - Roller, Printing [print this page] 1, installation and commissioning 1, loading and unloading Cots In the installation with the shaft and bearing to ensure a certain degree of precision and cleanliness, should be gently and should not impact the head and shaft tube, so as to avoid physical damage roll, bend and glue damage.
2, Lubrication Roller shaft, the bearings should always maintain effective lubrication. Such as poor lubrication will cause the first roller shaft, bearing wear, increased clearance, as well as causing uneven ink printing. Cots will also jump and slide due to the bad situation caused by printing bar marks. If no effective lubrication long continuous operation, but also cause bearings, shaft and heat, causing surface heating roller 2 expansion and wear rubber to produce rubber surface to 2 Ma face off plastic, cracking.
3, debug Rubber roller and rubber roller and the pressure between the plate according to rubber elasticity, hardness and its role in the printing process to adjust the right, the general use of O.15 ~ O.20mm the feeler (feeler to lubrication to avoid damage plastic surfaces) test, the radial contact pressure roller must be uniform. Otherwise the long run will create pressure on one end of the roller is too large produce hemp face off plastic, cracks, open plastic and so on.
Second, use and maintenance 1, pre-press Check whether the foreign body between the roller and roller, rubber roller is in good condition, roll pressure is uniform, confirmed that the normal, clean clean before it can be printed.
2, in press Roller in operation should always maintain good contact state by force uniform. Regardless of width format printing materials, should make the entire rubber roller surface with ink oil lubrication; as the ink roller between the amount of product, should adjust the ink to ensure the printing quality.
In ensuring that the printing speed of background, in order to prevent ink drying too fast, sticky roller lower surface of the crust phenomenon, need to join the ink dry oil dry oil should be a good amount of control to prevent operation of production The rubber roller did not transfer ink on the ink and inequality.
3, after the printing To timely roll and roll and roll and the printing plate disengagement, removable load pressure, to prevent the plastic surface deformation caused by static pressure. Timely cleaning roller to the surface of the residual ink to prevent ink drying produce block, ink film, ink feces and dirt floating in the plastic surface, (particularly both ends of the nylon surface ink roller block) to run for hurt when the damage plastic surface finish grinding , will produce serious side dregs Ma phenomenon.
4, roller cleaning Cots in print before and after the cleaning agent to be so dedicated to clean rubber rollers, rubber rollers to maintain smooth surface and set aside.
Cleaning is not timely, by roller ink will adhere to the surface of villous micro porous, the paper hair, dirt will be attached to the roller surface. Such as parking too long will cause the two roll ink conjunctival adhesion contact area, then drive will tear rubber surface, so that roller scrapped.
Cleaning in place, will produce the phenomenon of the glaze, resulting in pro-ink, transfer ink was reduced, or even result in deinking. Enamel surface hardness of rubber roller to increase, decrease flexibility, while speeding roller wear, leading to plastic surface appear pitting, cracking, resulting in dregs and adversely affect print quality.
Note: Glaze is the process of hardening of roller surface was mirror-like phenomenon.
