SU969547A1

SU969547A1 - Inking unit of rotary printing press

Info

Publication number: SU969547A1
Application number: SU813268857A
Authority: SU
Inventors: Игорь Петрович Солонец; Владимир Евгеньевич Химич
Original assignee: Омский политехнический институт
Priority date: 1981-03-25
Filing date: 1981-03-25
Publication date: 1982-10-30

Description

(5) КРАСОЧНЫЙ АППАРАТ РОТАЦИОННОЙ ПЕЧАТНОЙ МАШИНЫ(5) COLOR DEVICE OF ROTATIONAL PRINTING MACHINE

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Изобретение относитс к полиграфической , хехнике и предназначено дл использовани в ротационных машинах высокой и плоской печати.The invention relates to printing, machinery, and is intended for use in rotary high and flat printing machines.

Известен красочный аппарат ротационной печатной машины, содержащий краскопитающую группу валиков и цилиндров , раскатной цилиндр, накатной валик дл наката краски на цилиндрическую печатную форму и взаимодействующий с ним очищающий цилиндрс ракелем 1 .Known colorful apparatus of a rotary printing machine, containing a paint-roller group of rollers and cylinders, a rolling cylinder, a rolling roller for overlapping paint on a cylindrical printing plate and a cleaning cylinder interacting with it with a squeegee 1.

В данном красочном аппарате рельефность красочного сло на печатной форме после получени оттиска вызывает , соответственно, неравномерность красочного сло на форме после ее контакта с накатным валиком, что сказываетс на печати.In this inking apparatus, the relief of the ink layer on the printing form after receiving the impression causes, accordingly, the unevenness of the ink layer on the form after its contact with the knurling roller, which affects printing.

Мель изобретени - повышение качества наката краски на печатную форму.Stranded invention - improving the quality of the paint overlay on the printing form.

Указанна цель достигаетс тем, что красочный аппарат ротационной пе-.This goal is achieved by the fact that the colorful apparatus of the rotational pen.

чати машины, содержащий краскопитающую группу валиков и цилиндров, раскатной цилиндр, накатной валик дл наката краски на цилиндрическую печатную форму и взаимодействующий сchats of the machine, containing a paint-roller group of rollers and cylinders, a rolling cylinder, a rolling roller for overlapping paint on a cylindrical printing plate and interacting with

5 ним очищающий цилиндр с ракелем, он имеет дополнительно, по крайней мере, один валик дл взаимодействи с печатной формой и контактирующий с ним очищающий цилиндр с ракелем, при.5, there is a cleaning cylinder with a squeegee, it additionally has at least one roller for interacting with the printing form and a cleaning cylinder in contact with it with the squeegee, with.

этом дополнительный валик установлен перед накатным валиком по ходу наката краски на печатную форму. This additional roller is installed in front of the knurling roller as the paint rolls onto the printing plate.

На чертеже схематично изображен предлагаемый красочный аппарат.The drawing schematically shows the proposed colorful device.

Claims

The inking machine of a rotary printing machine contains a paint-feeding group consisting of a duct cylinder 1 and a transfer roller in contact with it, a rolling cylinder 3 in contact with the transfer roller 2, a rolling roller in contact with the rolling cylinder 3. With the rolling roller there is also an interaction with the rolling roller A cleaning cylinder 5 provided with a paint brushing squeegee 6. A cylinder 5 is located in front of the rolling cylinder 3 in the direction of rotation of the roll roller 4 The rolling roller 4 interacts with the printing plate placed on the surface ited forme cylinder 7 Before form roller 8 during the rotation of the printing surface is set: additional rollers 8 and 9 | each of which is in contact with the printing plate and with the cleaning cylinder 10 and 11, the latter being provided with paint brushing blades 12 and 13. The doctor cylinder 1 and the rolling cylinder 3 are forcibly driven to ensure their rotation. The roll cylinder 3 is further provided with an actuator for moving in the axial direction (not shown). I, the inking machine works as follows. A layer of ink from a duct cylinder 1 rotating at a linear speed lower than the print speed is fed to the transfer roller.

2. From the latter, the ink is transferred to a rolling cylinder rotating at a linear printing speed, where it rolls into a thin continuous and continuous layer. Next, the paint goes to the rolling roller i, which produces paint on. forminu | () surface of cylinder 7 as it rotates. The colorful relief left on the knurling roller 4 is cleaned by partially transferring it to the rotating cylinder 5 and then by removing the ink from the latter with a brush blade 6. The relief of the ink layer on the printing form after receiving the impression is removed by additional rollers 8 and 9 and transferred to the cylinders 10 11, from which the paint is cleaned with squeegees 12 and 13. The proposed paint apparatus provides a more uniform roll forward, paints onto the mold surface as a result of cleaning it from the colorful relief that remains on it after echati that improves the print quality and the service due to the fact that there is no need for cleaning the molds during machine operation. The invention of a colorful apparatus of a rotary printing machine, comprising a paint-sprayed group of rollers and cylinders, a rolling cylinder, a rolling roller for rolling-paint on a cylindrical ne form of cleaning with it (a cylinder with a squeegee, about a liter, and so that, in order to improve the quality of the paint over the printing form, it additionally has at least one roller for interacting with the printing form and a cleaning cylinder in contact with it with a squeegee, while the additional roller is installed in front of the .T5-V roll roller on the run of paint on the printing form.Sources of information taken into account during the examination 1. A. Tyurin Printing machinesautomat. M., Kniga, 1980, p.207208 (prototype).

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