Element for pressing cleaning cloth at printing form cylinder of printing machine
A technology of cleaning device and cleaning cloth, which is applied to the general parts of printing machinery, printing, printing machines, etc., which can solve the problems of processing and handling troubles, unsatisfactory application conditions, low chemical stability, etc., and achieve the effect of simple manufacturing
Active Publication Date: 2014-05-14
HEIDELBERGER DRUCKMASCHINEN AG
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although this adhesion is clearly better in this cleaning device than in cleaning devices in which the pressure element is located on a rigid component (as described in EP 1 644 196 B1), it is still not sufficient for all applications
Another disadvantage of the device described in the first mentioned document (EP0796736B1) is the low chemical stability of the rubber-like material of the pressing element against cleaning agents used for certain printing inks
Together with the leaf spring connected thereto, the pressure element forms a disposable product that is relatively complex in terms of processing and handling
Method used
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Embodiment Construction
[0033] exist Figures 1 to 6 Mutually corresponding elements and components are denoted by the same reference numerals.
[0034] figure 1 A printing press 4 for printing sheets in lithographic offset printing is shown in detail. The printing press 4 comprises a cylinder 3 which can be a plate cylinder, a blanket cylinder or an impression cylinder.
[0035] Furthermore, the printing press 4 includes a cleaning device 21 with a cleaning cloth 2 for cleaning the circumferential surface of the cylinder 3 . The cleaning cloth 2 can be made of fabric or non-woven fabric. There are two rolls 17 from which the cleaning cloth 2 can be unrolled in the clean state and wound onto the other roll 17 in the soiled state.
[0036] A pressing element 1 made of plastic contacts the cleaning cloth 2 for pressing the cleaning cloth from the cleaning cloth when cleaning the cylinder 3 . The pressure element 1 rests on a rail 5 made of metal, for example spring steel. The pressing element 1 a...
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The element (1) has two contact lips contacting a cleaning cloth (2) and including a base section for fastening the element to a rail (5) i.e. spring rail. A section lying between the rail and the contact lips is divided into segments that form a row. Slots are provided between the segments and provide spaces for deformations of the element. The slots are extended over a double-T-shaped or double-Y-shaped cross-sectional area. The contact lips run parallel with each other, where the segments do not extend up to an area of the contact lips.
Description
technical field [0001] The invention relates to a pressing element for pressing a cleaning cloth against a cylinder of a printing press, comprising at least one contact lip for contacting the cleaning cloth and also comprising a foot for fixing the pressing element to a rail part. Background technique [0002] In order to ensure a quick and also thorough cleaning, the pressure element should rest as closely as possible on the cylinder generatrix, with the cleaning cloth being located between the pressure element and the cylinder. [0003] In EP0796736B1 a cleaning device is described in which the pressing element is made of a rubber-like material and is carried by a steel belt. The steel strip is elastically designed to improve the adherence. Although this adhesion is clearly better in this cleaning device than in cleaning devices in which the pressure element is located on a rigid component (as described in EP 1 644 196 B1), it is still not sufficient for all applications...
Claims
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IPC IPC(8): B41F35/00
CPCB41P2235/246B41F35/00
Inventor R·德格纳S·克吕格尔
Owner HEIDELBERGER DRUCKMASCHINEN AG