US 6,796,234 B1Granted

Holding device for flexographic printing sleeves

AssigneeRotec-Hulsensysteme GmbH & Co. KG

InventorHelmut Busshoff

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Abstract

The invention relates to a holding device for a flexographic printing sleeve, which comprises at least one receiving member exhibiting a cylindrical side surface over which a printing sleeve can slide, said receiving member being able to rotate around its longitudinal axis and around the sleeve longitudinal axis. According to the invention, the receiving member comprises two or more shoulders with differing diameters and the holding device comprises a second identical receiving member. Both receiving members are placed in such a way that they can rotate around the same longitudinal axis and are oriented toward each other with their small shoulders. At least one of the receiving members can be moved along said longitudinal axis in such a way that the distance between said two receiving members can be adjusted.

Claims4

Dependent claims

Holding device for a flexographic printing sleeve, the holding device having at least one receiving member with a cylindrical lateral surface for mounting the printing sleeve, the receiving member being rotatable about a longitudinal axis of the printing sleeve, characterized in that

the receiving member has two or more shoulders of differing diameters and that a second, equivalent receiving member is provided, both receiving members being arranged and rotatable about the longitudinal axis,
and the receiving members with their smallest shoulders being aligned with each other,
and at least one receiving member being adjustable along the longitudinal axis to set a variable distance between both receiving members, and
an inner support sleeve to receive the sleeve, the support sleeve having air channels leading from an end face or from an inner surface of the support sleeve to an outer surface of the support sleeve.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 09/763,484Filed 11 Oct 2001
Priority: DE 198 37 99521 Aug 1998
Granted: 28 Sep 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B41F 13/0016
Common details of rotary presses or machines: storage devices for printing cylinders
B41F 30/06
Devices for attaching coverings or make-ready devices; Guiding devices for coverings: attaching of endless or like continuously-fed coverings
B41C 1/18
Forme preparation: curved printing formes or printing cylinders
B65H 2405/454
Shafts for winding/unwinding: means for penetrating into the core material, e.g. for transmitting torque