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Folding apparatus and method

A technology of folding knife and conveying direction, which is applied in the direction of folding thin materials, binding, transportation and packaging, etc., and can solve the problems of page folding and long output time

Active Publication Date: 2016-08-31
HUNKELER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the folding and outputting processes are carried out at right angles to each other, the sheets need to be turned accordingly, which however requires considerable time for the folding and outputting of the sheets

Method used

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  • Folding apparatus and method
  • Folding apparatus and method
  • Folding apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0066] Figure 1a A schematic perspective view of the device according to the invention for folding sheets or sheet stacks is shown, but the sheets or sheet stacks are not yet shown here.

[0067] The supply rollers for sheets or sheet stacks are marked with the reference numeral 8 . A weakening device 11 for the arriving sheets or sheet stacks is arranged above the feed roller 8, which has the effect of weakening the paper before folding and thus making it easier to fold the paper fold. In this case, on the one hand, it can be a device for cutting ("scoring") along the desired folding line, or it can also be a punching device. Furthermore, there is the possibility of spraying the paper with a mark of water droplets by means of the weakening device 11 in order to achieve a temporary weakening of the paper. However, it is also possible to weaken the paper during the folding process in a suitable manner. By means of the weakening, oblique folds can be avoided in a very effect...

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PUM

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Abstract

An apparatus for folding sheets or sheet stacks, including at least two folding / transport rollers, transport device and knife, the transport device defining transport plane E for sheets or sheet stacks fed in transport direction R, knife being movable substantially perpendicularly to and through transport plane E, folding / transport rollers being arranged above transport plane E, oppositely on both sides of knife, axis of rotation A of folding / transport rollers extending substantially perpendicularly to transport plane E, and at least two folding / transport rollers each having, at their end facing toward transport plane E, rounded portion, such that narrowing gap S is formed between the at least two folding / transport rollers, into which gap sheets or sheet stacks can be introduced by means of knife so as to be folded there and at same time conveyed away in transport direction R, and to corresponding method.

Description

technical field [0001] The invention relates to a device for folding a sheet or a stack of sheets and a corresponding method. Furthermore, the invention relates to a method for producing a newspaper product consisting at least of a first sub-product and a second sub-product. Background technique [0002] A device and a method for producing omega-shaped creases are known from EP 0 846 573 A1. After the arriving sheet or sheet stack has been lifted from the center by means of the folding knife, the crease is produced by two jaws moving towards each other. After the jaws have opened, the folded product is pushed out of the fold area in the direction of the folded edge. [0003] From EP 1 213 245 A1 a device and a method are known for folding sheets, in particular printing paper, by means of a folding knife which has a rectilinear upper edge lying in the transport plane and The movement is perpendicular to the conveying plane and a crease is formed by means of two folding ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H45/16B65H45/30B65H45/18
CPCB65H45/16B65H45/18B65H45/30B65H2701/1131B65H2801/31B65H45/28B65H2801/15B65H45/22B65H2301/51232B65H39/10B65H2701/13212B42C1/125B65H37/06B65H2301/45
Inventor K·格拉伯F·福克哈贝尔
Owner HUNKELER AG
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