CN2726875Y

CN2726875Y - Letterpress unit

Info

Publication number: CN2726875Y
Application number: CN 200420072787
Authority: CN
Inventors: 毕明; 焦永利; 许玉坤; 黄玉珍; 吴硕夫; 韩绪艳; 石磊; 邵剑波
Original assignee: China Banknote Printing and Minting Corp
Current assignee: China Banknote Printing and Minting Corp
Priority date: 2004-07-06
Filing date: 2004-07-06
Publication date: 2005-09-21
Anticipated expiration: 2014-07-06

Abstract

The utility model discloses a letterpress unit for a letterpress machine, comprising an imprinting roller and a letterpress roller. The letterpress roller is provided with at least two color module rollers. Each color module roller is corresponding to an inker unit of one colour. The ink of different colors is transferred to the letterpress roller in regions via the color module rollers. The letterpress roller is matched with the imprinting roller to finish the multicolor printing of one version. The module rollers of different colors respectively transfer the ink of different colors to the letterpress roller according to regions by arranging the color module rollers among the letterpress rollers and making the hardness difference between the color module rollers and the letterpress rollers not less than 30 DEG Shores. The utility model realizes one version multicolor printing by pressing the letterpress roller and the imprinting roller once, which provides technology security for decreasing the volume of the multicolor printing machine.

Description

Relief Printing Unit

Technical field

The utility model relates to Relief Printing Unit used in a kind of letterpress.

Background technology

Existing Relief Printing Unit be generally one edition of the same colour, be that each printing element can only carry out the printing of single color, when needing multicolour on the printing, then need to dispose the printing element of same quantity, this not only makes the huge of printing machine volume change, and in order to guarantee printing precision, the chromatography precision between the especially not homochromy district makes complicated more that the structure of printing machine also becomes.

The utility model content

At the problem that prior art exists, the purpose of this utility model provides a kind ofly can carry out a polychrome Relief Printing Unit.

For achieving the above object, the utility model Relief Printing Unit comprises impression cylinder, relief printing plate cylinder, dispose at least two look mould rollers on the relief printing plate cylinder, each look mould roller is corresponding with a kind of inking device of color, by look mould roller the China ink of the different color mode with regional ink transfer is delivered on the relief printing plate cylinder, the relief printing plate cylinder matches with impression cylinder, finishes a polychrome printing.

Further, for guaranteeing the ink transfer quality between described look mould roller and the described relief printing plate cylinder, it is poor to have certain rigidity between look mould roller and the relief printing plate cylinder.

Further, the difference of hardness between described look mould roller and the relief printing plate cylinder is not less than 30 ° of Shao Shi.

By look mould roller is set between the relief printing plate cylinder, and make have the difference of hardness that is not less than 30 ° of Shao Shi between the two after, mould roller of all kinds is delivered to the China ink of different color on the relief printing plate cylinder by the zone respectively, make relief printing plate cylinder and impression cylinder once can realize a polychrome printing, thereby provide technical guarantee for the volume that reduces multicolour press pressing.

Description of drawings

Accompanying drawing 1 is existing Relief Printing Unit structural representation;

Accompanying drawing 2 is the utility model Relief Printing Unit structural representation.

The specific embodiment

As shown in Figure 1, comprise an impression cylinder 1, a relief printing plate cylinder 2 and an inking device 4 thereof in the Relief Printing Unit of existing letterpress, the inking device 4 matches one by one with relief printing plate cylinder 2, relief printing plate cylinder 2 once can only print off a monochrome with 1 pair of pressure of impression cylinder, if print double-coloredly, must be equipped with the Relief Printing Unit of two kinds of colors, when needs are printed polychrome, then need more Relief Printing Unit, thereby cause huge, the complex structure of printing machine volume, operation cost strengthens.

Be illustrated in figure 2 as the letterpress that the utility model has double-colored Relief Printing Unit, this Relief Printing Unit forms 4 by an impression cylinder 1, relief printing plate cylinder 2, two look mould rollers 3, two groups of inking devices, two groups of inking devices 4 and two look mould rollers 3 match one by one, and two look mould rollers 3 all are complementary with relief printing plate cylinder 2.Look mould roller 3 and relief printing plate cylinder 2 are made by the rubber-plastics material with different hardness, and difference of hardness between the two is not less than 30 ° of Shao Shi, guarantee that printing ink can successfully be delivered on the relief printing plate cylinder 2 from look mould roller 3 thereby make.

During the utility model work, two look mould rollers 3 are delivered to the China ink of two kinds of different colours on the relief printing plate cylinder 2 by the zone respectively, impression cylinder 1 and relief printing plate cylinder 2 are finished the printing of printing product under the driving control of printing machine control device, driving mechanism, the two once can finish a two color printing to pressing.

Claims

1. Relief Printing Unit, it is characterized in that, comprise impression cylinder, relief printing plate cylinder, dispose at least two look mould rollers on the relief printing plate cylinder, each look mould roller is corresponding with a kind of inking device of color, by look mould roller the China ink of the different color mode with regional ink transfer is delivered on the relief printing plate cylinder, the relief printing plate cylinder matches with impression cylinder, finishes a polychrome printing.

2. the letterpress that has double-colored Relief Printing Unit as claimed in claim 1 is characterized in that, for guaranteeing the ink transfer quality between described look mould roller and the described relief printing plate cylinder, it is poor to have certain rigidity between look mould roller and the relief printing plate cylinder.

3. the letterpress that has double-colored Relief Printing Unit as claimed in claim 1 or 2 is characterized in that, the difference of hardness between described look mould roller and the relief printing plate cylinder is not less than 30 ° of Shao Shi.