Ink-metering system for viscous paste inks. RU patent 2505414.

IPC classes for russian patent Ink-metering system for viscous paste inks. RU patent 2505414. (RU 2505414):

B41F31/00 - Inking arrangements or devices (inking units for platen presses B41F0001400000; inking units for cylinder presses B41F0003810000; applying liquids or other fluent materials to surfaces, in general B05; for typewriters or selective printing mechanisms B41J)

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Ink-metering system for viscous paste inks / 2505414
Vibrating rollers interacting with the plate rollers, mounted with the ability of rotation and axial displacement. At the extreme parts of the shaft of one of the vibrating rollers two levers are loosely mounted, at the ends of which in the eccentric bushings an additional metal roller is placed, which presses to the first plate roller under the action of its own weight.

FIELD: printing industry.

SUBSTANCE: vibrating rollers interacting with the plate rollers, mounted with the ability of rotation and axial displacement. At the extreme parts of the shaft of one of the vibrating rollers two levers are loosely mounted, at the ends of which in the eccentric bushings an additional metal roller is placed, which presses to the first plate roller under the action of its own weight.

EFFECT: levers with the additional roller are able to move in the axial direction together with the vibrating roller for leveling the paint layer and further destruction of back paint relief.

3 cl, 1 dwg

The invention relates to the printing industry, in particular, to the colorful airships offset printing machines.

group inking unit for viscous paints is a a system for organizing the filing of a uniform layer of paint on the printing form elements. Preparation of paint flow is carried out by three groups of roller inking unit: , ink slabs and rolling. The process of applying the paint layer on the form is accompanied by election inking only in print form elements, resulting in a trailer rollers are still areas of unclaimed paint, forming a so-called working colorful relief, leaving in group. To exclude defects plays on material colorful image working colorful relief, align, i.e. to destroy.

colorful relief can cause , when the imprint appears secondary, «parasitic» colorful relief or its fragments, that is marriage. It is established that to reduce the likelihood of in colorful devices is , which lies in the forced axial movement of one or all of ro-ro rollers on the form [1]. This helps to equalize the paint layer and uniform rollforward of paint on the form. However, for the implementation of the axial movement of the trailer rollers should be a fixture in the special locks, which complicates the mechanism of their installation.

The proposed technical solution for the alignment of the paint layer and additional destruction of recycled paint relief over roller is installed a metallic cylinder, performing the rotation and axial displacement together with cylinder. This allows, without changing the design of castles roller, to undertake the preparation of a uniform layer of paint, ease of installation and maintenance.

In the drawing a diagram of the proposed device contains: 1 - cylinder, 2 - rolling cushion, 3 - ink slabs cylinder, 4 - additional metal cylinder, 5 - levers mounting installed on the edges of the shaft cylinder, 6-eccentric sleeve, 7-box.

The work of the rolling of the group is as follows. Rolling roll 2, located between by and cylinders 1, 3 rolls paint on the form. To reduce the likelihood of over roller 2 installed additional metal cylinder 4, which is fixed in the eccentric sleeve 6, placed at the ends of levers 5, fastened to the rigidity of the insert 7. Additional 4 cylinder mounted rotary and axial movement together with cylinder, due to the squeeze it under the influence of gravity to the cylinder 3. To streamline the process of applying the paint layer on the form and exceptions diameter additional cylinder must not be a multiple diameters cylinder and roller.

Surface area configuration of additional cylinder relative roller is made with the help of eccentric bushings 6. This gives the opportunity to adjust the width of the contact zone of the generatrix of the roller, thanks to the organization of the electoral contact additional cylinder 4 with roller or to the sides or the entire length, due to its axis skew the eccentric sleeve. Such self-adjusting the printer for the given topology of the printed form that contributes to the formation of the paint layer, which is applied to the form, in the context of laying on her printing elements and their area.

The main advantage of the proposed rolling group inking unit for viscous paints his constructive simplicity and convenience of service compared with the system .

1. group inking unit for viscous paints containing rolled cylinder interacting with the rolling pins and installed with the possibility of rotation and axial movement, characterized by the fact that the outer parts of the shaft of one of the cylinder rolled freely installed two levers at the ends of which the eccentric bearings, placed additional metal cylinder under its own weight pressed to the first barrage, and the levers together with the additional cylinder are able to move in the axial direction, together with cylinder diameter of the additional cylinder must not be a multiple diameters cylinder and the first roller.

2. group inking unit for viscous paints, wherein the contact zone of the force of the additional cylinder with roller is adjusted by rotation of the eccentric sleeves.

3. group inking unit for viscous paints, wherein the levers in the middle part of the bonded together insertion.