DE10123325B4 - Transfer cylinder of a printing press - Google Patents

Abstract

transfer cylinder a printing press with a blanket (08) and a carrier plate (07) having blanket unit (06), wherein the transfer cylinder (01) has a registration block (12), characterized that at least the support plate (07) the blanket unit (06) in each case in the area at the beginning (16) and at the end (17) of each of its two side edges (09) has a recess (11), wherein the two recesses (11) of a side edge (09) interact with a single register block (12), and that the blanket unit (06) held magnetically on the transfer cylinder (01) is.

Description

The The invention relates to a transfer cylinder a printing press according to the preamble of Claim 1.

In the EP 06 19 780 B1 For example, a blanket connected to a ferromagnetic carrier sheet is mounted on a magnetic blanket cylinder. Here are at the beginning and end of the support plate on the support plate laterally mounted, perforated tabs with cylinder-fixed pins into engagement. In this case, additional tabs are necessary.

The US 57 40 738 A discloses a sleeve-shaped blanket with divided carrier sleeve. The carrier sleeve has on its side edge a recess which cooperates with a register pin. In this case, only one side can be positioned exactly, which is also sufficient for the sleeve. A migration of the sleeve in the axial direction is not prevented by the pin.

The DE 28 03 908 A1 describes a blanket unit whose support plate has perforations at one end. Due to these perforations, the printing area is severely limited.

The US 38 82 775 A shows a pressure plate whose leading and trailing end has front side recesses, which cooperate in each case with a common register pin.

The EP 02 36 741 A2 shows a plate cylinder, with retractable register pins which engage in recesses of one end of a printing plate.

Of the Invention is based on the object, a transfer cylinder of a printing press to create easy at the beginning and end of a blanket unit can be positioned and at the same time one as possible size uninterrupted printing surface is achieved in the circumferential direction.

The The object is achieved by the Characteristics of claim 1 solved.

The particular advantages of the invention are that the blanket unit by means of a simple technical solution register attacks aligned and non-slip on the lateral surface of the transfer cylinder positioned is.

One Hiking the blanket carrier in the circumferential direction or in the axis-parallel direction of the transfer cylinder is excluded. By the invention, the attachment of elaborate fasteners on the carrier sheet avoided.

One embodiment The invention is illustrated in the drawing and will be described below described in more detail.

It demonstrate:

1 the plan view of an end of a transfer cylinder in a partial view;

2 a section II-II after 1 ,

A transfer cylinder 01 a rotary printing machine consists of a rotationally symmetrical blanket cylinder body 02 , in its lateral surface 03 known to be spaced apart magnets 04 , z. B. permanent magnets 04 , are arranged. On the lateral surface 03 is a blanket unit 06 applicable to a ferromagnetic blanket carrier 07 , z. B. a carrier plate 07 , and one on this indissolubly fortified, z. B. glued, blanket 08 , z. B. blanket 08 , consists.

The carrier plate 07 has a greater width a to a width b of the blanket 08 , The carrier plate 07 has in the area of their left and right side edges 09 in each case at least one recess 11 which z. B. U-shaped to the respective side edge 09 is open. In this recess 11 engages positively a cylinder body fixed fitting 12 , z. B. a register stone 12 , one. This register stone 12 is each in a groove 13 of the blanket cylinder body 02 attached, z. B. by means of screws 14 , and protrudes with its contour over the lateral surface 03 of the blanket cylinder body 02 out.

The recess 11 as well as the contour of the register stone 12 are preferably rectangular in shape and are located near the beginning 16 and the immediately adjacent end 17 , at the junction 18 the blanket unit 06 , so in the beginning 16 and end 17 each half of the recess 11 form.

It is advantageous if in the direction of rotation C of the transfer cylinder 01 seen at the blanket unit 06 located part of the recess 11 slightly, ie by a measure d, z. B. 0.5 mm is greater than a width e of the register block 12 , This will make it possible for the blanket 08 in the area of the joint 18 between the beginning 16 and end 17 can move balancing and thus harmful effects of flexing be avoided.

The carrier plate 07 forms with the register stone 12 thus in the axial direction of the transfer cylinder 01 a joint 19 and in the circumferential direction a joint 21 ,

01

transfer cylinder

02

Blanket cylinder body ( 01 )

03

Lateral surface ( 01 )

04

Magnet, permanent magnet

05

-

06

Blanket unit ( 03 )

07

Blanket carrier, carrier plate ( 06 )

08

Blanket, blanket ( 07 )

09

Side edge ( 07 )

10

-

11

Recess ( 07 )

12

Fitting, register stone ( 02 )

13

Groove ( 02 )

14

screw

15

-

16

Beginning ( 06 )

17

The End ( 06 )

18

Joint ( 16 ; 17 )

19

Joint, axial ( 07 ; 12 )

20

-

21

Joint, circumference ( 07 ; 12 )

C

Direction of rotation ( 01 )

a

Width ( 07 )

b

Width ( 08 )

d

Measure ( 11 )

e

Width ( 12 )

Claims (1)

Transfer cylinder of a printing machine with a blanket ( 08 ) and a backing plate (07) having blanket unit ( 06 ), wherein the transfer cylinder ( 01 ) a register stone ( 12 ), characterized in that at least the carrier plate ( 07 ) of the blanket unit ( 06 ) in the area at the beginning ( 16 ) and at the end ( 17 ) each of its two side edges ( 09 ) a recess ( 11 ), wherein the two recesses ( 11 ) of a side edge ( 09 ) with a single register block ( 12 ) and that the blanket unit ( 06 ) magnetically on the transfer cylinder ( 01 ) is held.