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Folding device of a printing press and method for operating the folding device

A technology of folding device and printing machine, applied in printing machine, rotary printing machine, printing and other directions, to achieve the effect of simple relative position of peripheral edge and improved function

Active Publication Date: 2014-09-24
MANROLAND WEB SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to this prior art it is thus possible to change the needles associated with the first cylinder body of the needle and knife cylinder and the second cylinder body of the needle and knife cylinder at the needle and knife cylinder by twisting its cylinder section. Peripheral spacing between the associated folding knives of the drum body

Method used

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  • Folding device of a printing press and method for operating the folding device
  • Folding device of a printing press and method for operating the folding device
  • Folding device of a printing press and method for operating the folding device

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Embodiment Construction

[0064] The invention relates to a folding device and a method for operating such a folding device.

[0065] figure 1 Shown by way of example is a first folding device 10 of a printing press, which is in figure 1 The embodiment of the present invention includes three rollers that work together during folding, namely a cutting roller 11 , a folding knife roller 12 and a folding clip roller 13 . With the aid of a cutting cylinder 11 carrying two cutting knives 15 in the illustrated embodiment, the printed sheet 16 can be separated from the printed printing material web 14 , the printed sheet 16 is gripped by the folding knife cylinder 12 and directed towards the folding nip cylinder 13 . , wherein the printed sheet 16 is delivered from the folding knife cylinder 12 to the folding nip cylinder 13 while forming cross folds. exist figure 1 In the embodiment of the present invention, the knife cylinder 12 is implemented as a needle and knife cylinder 12, which comprises a pluralit...

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PUM

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Abstract

The invention relates to a folding device of a printing press and a method for operating the folding device. The folding device (10) includes a plurality of cylinders (11, 12, 13), namely, the folding device is at least provided with folding knife cylinders (12, 22) and a folding clamp cylinder (13), wherein folds are formed at to-be-folded printing sheets (16) between the corresponding folding knife cylinders (12, 22) and the folding clamp cylinder (13), a relative position between at least two cylinders interacting together is variable in a circumferential direction such that a circumferential relative position between assemblies (18, 19) interacting together during folding and related to the cylinders (11, 12, 13) is variable.

Description

technical field [0001] The invention relates to a folding device of a printing machine according to the preamble of claim 1 . Furthermore, the invention relates to a method for operating a folding device according to the preamble of claim 13 . Background technique [0002] Folding devices of printing presses are already known from practice, by means of which transverse folds (Querfalz) and / or folds can be formed at the printed sheet (Signatur) separated from the printed, especially web-like (bahnformig) printing material (Bedruckstoff) Longitudinal pleats. In principle, a distinction is made between needle folding devices (Punkturfalzeinrichtung) and gripper folding devices (Greiferfalzeinrichtung), ie depending on whether the so-called folding knife drum (Falzmesserzylinder) of the folding device uses needles or grippers for The sheet position is fixed on the jackknife cylinder. It is also known from practice to assemble a plurality of printed sheets to form a sheet stac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F13/62
CPCB65H45/162B26D7/27B26D1/40B65H45/16
Inventor T.盖斯勒
Owner MANROLAND WEB SYST