Apparatus for measuring protrusion of surface of rotating body

Abstract

The invention relates to a apparatus, for example a flexographic printing plate, for measuring elevations (13) of a surface (14) of a rotating body (6) configured for a cylinder (15), a roller (15), asleeve (3) or a printing plate (5) of a printing machine (8), comprising a first motor (7) for rotating the rotating body (6) about an axis of rotation (22) and a measuring device (18), the measuringdevice (18) comprises at least one radiation source (19) and at least one surface camera (21) for contactless measurement. Preferably, the measuring device (18) further comprises a reference object (30), such as axially parallel tensioned metal wires, for contactless measurement; and comprising a second motor (29) and, if necessary, a further second motor (29b) for enabling adjustment of the measuring device (18) and / or of the reference object perpendicularly to the axis of rotation (22). The apparatus enables rapid and highly accurate measurement of elevations, such as flexographic printingdots.

Description

technical field

[0001] The invention relates to a device having the features stated in the preamble of claim 1 .

[0002] The invention is based in the technical field of the graphic industry and here in particular in the field of measuring rotating bodies such as cylinders, rollers, sleeves (preferably laser-scribed flexographic printing sleeves), or printing plates (preferably is a flexographic plate mounted on a sleeve). The bulge of the rotating body is detected during the measurement. Background technique

[0003] Document DE3302798A1 discloses a detection surface coverage Or the printing part and the non-printing part are combined with register presetting to shorten the setting time.

[0004] The document DE 10 2014 215 648 A1 discloses a rotary printing press with a central counter-pressure cylinder rotatable about an axis of rotation; at least one (preferably several) printing layers (Druckdeck) surrounding the central counter-pressure cylinder An arrangement wh...

Examples

Embodiment Construction

[0040] figure 1 Shown is the rotatable carrying roller 1 of the measuring station 2, the sleeve 3 accommodated on the carrying roller and the sleeve 3 accommodated on the sleeve 3, preferably by means of an adhesive tape 4 (or alternatively by means of a glue coating of the sleeve) on A printing plate 5 fixed on the sleeve 3 (the so-called “mounter”), at least with respect to its relief topography, is a cross-section of the aforementioned individual components of the rotor 6 . Alternatively, preferably laser-scribed embossing sleeves can be measured on a carrier cylinder.

[0041] In order to rotate the carrier roller 1 during the measurement, a motor 7 can be provided in the measurement station 2 . The measuring station 2 can be part of a so-called "setter" in which the printing plate 5 is mounted on a carrier sleeve, or it can be provided separately and independently from the "setter". Measuring station 2 can be arranged independently of printing press 8 , which is provid...

technical field

[0001] The invention relates to a device having the features stated in the preamble of claim 1 .

[0002] The invention is based in the technical field of the graphic industry and here in particular in the field of measuring rotating bodies such as cylinders, rollers, sleeves (preferably laser-scribed flexographic printing sleeves), or printing plates (preferably is a flexographic plate mounted on a sleeve). The bulge of the rotating body is detected during the measurement. Background technique

[0003] Document DE3302798A1 discloses a detection surface coverage Or the printing part and the non-printing part are combined with register presetting to shorten the setting time.

[0004] The document DE 10 2014 215 648 A1 discloses a rotary printing press with a central counter-pressure cylinder rotatable about an axis of rotation; at least one (preferably several) printing layers (Druckdeck) surrounding the central counter-pressure cylinder An arrangement wh...

Examples

Embodiment Construction

[0040] figure 1 Shown is the rotatable carrying roller 1 of the measuring station 2, the sleeve 3 accommodated on the carrying roller and the sleeve 3 accommodated on the sleeve 3, preferably by means of an adhesive tape 4 (or alternatively by means of a glue coating of the sleeve) on A printing plate 5 fixed on the sleeve 3 (the so-called “mounter”), at least with respect to its relief topography, is a cross-section of the aforementioned individual components of the rotor 6 . Alternatively, preferably laser-scribed embossing sleeves can be measured on a carrier cylinder.

[0041] In order to rotate the carrier roller 1 during the measurement, a motor 7 can be provided in the measurement station 2 . The measuring station 2 can be part of a so-called "setter" in which the printing plate 5 is mounted on a carrier sleeve, or it can be provided separately and independently from the "setter". Measuring station 2 can be arranged independently of printing press 8 , which is provid...

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