Unlock instant, AI-driven research and patent intelligence for your innovation.

Printing cylinder structure of web press

A technology for printing cylinders and printing machines, which is applied to rotary printing machines, printing machines, general parts of printing machinery, etc. It can solve the problems of cumbersome installation and disassembly operations, reduce impact, suppress the disappearance of tension, and prevent impact marks Effect

Inactive Publication Date: 2010-01-06
西研公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the printing cylinder structure of Patent Document 1, four or more blankets must be wound on the blanket cylinder, and there is a problem of cumbersome installation and removal work.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Printing cylinder structure of web press
  • Printing cylinder structure of web press
  • Printing cylinder structure of web press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 It is an explanatory drawing for explaining the configuration of the printing section of a rotary printing machine to which the printing cylinder structure of the present invention is applied. The printing section of the rotary printing machine shown in this figure is composed of a printing plate cylinder 1 on which a printing plate is rolled, a blanket cylinder 2 on which a rubber blanket is rolled, an inking unit 3, and a dampening solution unit 4, each on the left and right. printing unit.

[0034] The inking device 3 includes an ink fountain 3a and an ink roller group 3b composed of a plurality of ink rollers. The printing ink supplied from the ink fountain 3a is sequentially transferred by the ink roller group 3b as an ink film, and is formed by the final roller 3b-1 in contact with the printing plate cylinder 1. The ink film is transferred to the printing surface of the printing plate wound on the outer periphery of the printing plate cylinder 1 .

[0...

Embodiment 2

[0047] Figure 5 is a perspective view of a blanket used in the construction of a printing cylinder according to a second embodiment of the present invention, Figure 6 for will Figure 5 A perspective view of the blanket rolled on a blanket cylinder. exist Figure 5 In , the same components as those in the first embodiment are denoted by the same symbols, and their descriptions are omitted. exist Figure 5 in, with figure 2 Likewise, brackets and the like are omitted.

[0048] In the first embodiment, the raised portion was provided on the blanket cylinder, but in this embodiment, the raised portion is provided on the blanket. Also in this embodiment, two sheets of blankets 7 with a width of two sheets are packaged on the blanket cylinder 2 so that they are aligned in the axial direction.

[0049] like Figure 6 As shown, the raised portion 7 a of the blanket 7 provided on one side is wound on the extension line of the gap 2 a of the blanket cylinder 2 . The protrud...

Embodiment 3

[0053] Figure 8 It is a perspective view of the printing plate and the printing plate cylinder showing the structure of the printing plate cylinder of the third embodiment of the present invention. In this embodiment, raised portions are provided on the printing plate 8 . exist Figure 8 In , the same components as those in the first embodiment are denoted by the same symbols, and their descriptions are omitted. exist Figure 8 In , for convenience, the brackets at the end of the printing plate cylinder, etc. are omitted.

[0054] exist Figure 8 On the printing plate cylinder 1 shown, two printing plates 8 with a width of 2 pages and a circumference of 2 pages are packed in two sheets along the axial direction, and the outer circumference of the printing plate cylinder 1 is formed for fixing each printing plate 8 by a spring or the like. Clamp the gaps 1a, 1b at the front and at the rear. Here, the gap 1a between the clamping front side and the clamping rear side for f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A printing cylinder structure of a web press capable of preventing troubles with printing from occurring by suppressing the occurrence of vibration and the extraction of a tension by gap and facilitating the troublesome mounting and dismounting of blankets. The two sheets of blankets (7) are formed to be wound around a blanket cylinder (2) parallel with each other in the axial direction, and gaps (2a) and (2b) for locking the winding end parts of the blankets (7) are formed in the outer periphery of the blanket cylinder (2). These gaps (2a) and (2b) are formed at phases displaced by 180 degree relative to each other in the circumferential direction of the blanket cylinder (2). Raised parts (2c) and (2d) are formed on the outer periphery of the blanket cylinder (2) on the extensions of the gaps (2a) and (2b) along the axial direction of the blanket cylinder (2). Since a plate cylinder (1) is rotated over the raised parts (2c) and (2d) in printing, the plate cylinder (1) can be prevented from falling into the gaps (2a) and (2b).

Description

technical field [0001] The present invention relates to a printing cylinder structure of a rotary printing machine. The printing cylinder structure of the rotary printing machine includes a blanket cylinder and a plate cylinder installed in the printing section of various rotary printing machines such as offset rotary printing machines, and transfers printing ink to Ink roller group of plate cylinder, etc. Background technique [0002] In the structure of the printing cylinder of the conventional rotary printing machine, in order to transfer the printing ink on the printing surface of the printing plate wound on the outer periphery of the printing plate cylinder to the blanket wound on the outer periphery of the blanket cylinder reliably, A certain printing pressure is applied between the plate cylinder and the blanket cylinder. [0003] On the other hand, on the outer circumference of the printing plate cylinder and the blanket cylinder, in order to fix the winding ends of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B41F13/08B41F13/10B41F30/00B41N10/02B41F27/12B41N10/06
CPCB41F27/1293B41N10/06B41N2210/02B41F13/085B41N10/02B41N2210/04
Inventor 多田干生下川和博
Owner 西研公司