RU167835U1 - DEVICE FOR MANUFACTURE OF OFFSET PRINTING FORMS - Google Patents

Abstract

The utility model "Device for the manufacture of offset printing forms" refers to the printing industry, namely to the formal processes of offset printing. The purpose of the utility model is to increase the productivity of the process of offset printing, reducing the energy consumption and the number of technological equipment. The proposed device uses unrefined aluminum as the molding material plate. The proposed device can be performed with a planar or cylindrical conveying device of the plate, It can also be embedded in each printing unit of an offset printing machine.

Description

The present invention relates to the field of printing.

From the current level of technology, devices for manufacturing offset printing plates of a tablet or drum type are known, in which plate plates with a previously applied light or heat-sensitive layer are used to obtain a printing plate, in which: image recording is performed using a single-beam or multi-beam laser source of various wavelengths and power followed by thermal or chemical treatment in a specialized processor with the following operations: heating from exposure a valid plate; manifestations; flushing; gumming; drying and firing.

A common disadvantage of the known form-output devices are: the use of pre-sensed plate plates; the complexity of the process; high energy intensity of the process and the need to use a large number of technological equipment (Samarin, Yu.N. Equipment and technology for prepress processes. At 2 o’clock: a textbook for high schools / Yu.N. Samarin; Moscow State University of Printing. - M .: MGUP, 2011 .-- 655 p.: Ill. /).

Closest to the claimed technical solution is a device for the manufacture of an offset printing plate with multi-beam recording and a processor for processing an exposed exposure plate with a photosensitive layer. The device includes: autoloader of sensed plate plates; raster image processor (RIP); laser exposure device and processor for processing exposed plates.

The technological process of this device includes the following operations:

- transfer of a digital image file to a raster image processor (RIP);

- automatic loading of a plate;

- processing of a digital file in the rip;

- bitwise image recording;

- processing of the exposed plate (development, washing, applying a protective layer, drying)

(Samarin Yu.N. Equipment and technology for prepress processes. At 2 o’clock: a textbook for high schools / Yu.N. Samarin; Moscow. State University of Printing. - M.: MGUP, 2011. - 655 pp., Ill. ./).

The disadvantages of this technical solution are: the use of pre-sensed plate, manufactured at specialized enterprises; the complexity of the process; the use of a large number of technological equipment; increased energy intensity of the process.

The tasks to be solved by the claimed utility model are: the use in the manufacturing process of the printing plate of an unrefined aluminum plate; process reduction; reduction in the number of technological equipment; increased productivity and reduced energy costs.

This problem is solved due to the fact that the claimed device for the manufacture of offset printing forms is characterized in that it includes the following components and devices: aluminum plate 1; node for applying ultraviolet (UV) curable paint 2; node UV curing of the applied paint 3; node forming the printing elements 4; a node for applying a protective layer to the gap elements 5; drying unit 6; conveying device of the aluminum plate 7.

In FIG. 1 shows a structural diagram of a device for the manufacture of offset printing forms of the tablet (flat) type.

The device operates as follows: an aluminum plate 1 is placed on the conveyor 7, by means of the conveyor drive, the plate 1 is moved to the area of the node 2, where UV-curable paint is applied, then the aluminum plate with the paint layer passes to the curing unit 3, where, using UV sources, its curing, then the plate with the cured ink layer goes into the unit for forming printing elements of form 4, where, using a single or multi-beam source of UV laser radiation controlled by raster percent quarrel image (RIP) is a removal of the paint layer to form the non-printing elements with simultaneous vacuum suction sublimation products, paint remaining on the plate surface, forms a recording element. Next, the plate passes to the node 5, where the hydrophilizing solution is applied, and then to the drying unit 6.

In FIG. 2 is a diagram of the process for manufacturing an offset printing plate using the computer-printed form technology of the claimed device, which operates as follows: the autoloader feeds an aluminum plate to the UV curable ink coating and curing section, then an aluminum plate with a colorful layer enters the printing plate forming section where, using a multi-beam UV laser source controlled by a raster image processor (RIP), into which a digital file containing As for color-separated images of a full-format printed sheet, the ink layer is removed from the blank elements of the printing plate, while the vacuum product is removed. The remaining ink layer on the form is a printing element. Next, the printing plate is fed to the gumming section, where a hydrophilizing solution is applied to the surface of the mold, then the printing plate passes the drying section and is displayed on the receiving table of the device.

Claims (4)

1. A device for the manufacture of offset printing forms, characterized in that it includes a housing containing an autoloader of aluminum plates; conveyor for continuous movement of the aluminum plate and sequentially located nodes: applying UV-curable paint; a node for forming printing elements of the form, combined with a vacuum suction of the processing material; a unit for applying a protective layer and a unit for drying an offset printing form. 2. A device for the manufacture of offset printing forms according to claim 1, characterized in that the conveying device of the aluminum plate can be planar. 3. A device for the manufacture of offset printing forms according to claim 1, characterized in that the conveying device of the aluminum plate can be cylindrical. 4. A device for the manufacture of offset printing forms according to claim 1, characterized in that the aluminum plate can be located on the plate cylinder of the offset printing machine.

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