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Method for folding and fence folder

A fence-type, folding machine technology, applied in the field of folding sheets, can solve problems such as material blockage, problems at the pier pressing part, sheet conflicts, etc.

Active Publication Date: 2017-09-29
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of the fence folder described above is that it can cause problems when forming the piers
If the pier is not caught quickly enough and securely by the pulling rollers, it can collide with the following sheet and thus cause a material jam

Method used

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  • Method for folding and fence folder
  • Method for folding and fence folder
  • Method for folding and fence folder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] exist figure 1 The folding device of the fence folding machine 100 is shown in FIG. 1 , as it is basically known from the prior art. The folding device comprises a first folding roller 1 , a second folding roller 1 . 1 and a third folding roller 2 . The folding rollers 1 and 1.1 together form a first pair of rollers, which is also called pair of advancing rollers. The pair of rollers 1 , 1 . 1 pushes a sheet 30 into the folding fence 6 of the folding device. The folding fence 6 has a sheet stop 6.1, which is transported up to the feed sheet stop. Here, the sheets are guided by an upper barrier lip 6.2 and a lower barrier lip 6.3. As soon as the sheet 30 touches the sheet stop 6 . A crease is formed in the sheet 30 which appears as a fold edge in the finished folded product. The rollers 1.1 and 2 thus form a folding roller pair, which is also referred to as a pulling roller pair. Said roller 1.1 thus forms a special roller with a double function, since it is not on...

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PUM

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Abstract

The invention relates to a method for folding sheets in a fence folder with at least one first roller pair, a subsequent first folding fence in the sheet travel direction and a sheet travel A subsequent pair of folding rollers in the direction wherein at least one of the rollers of the folding roller pair has a peripheral speed on its surface that is always higher than the peripheral speed of at least one of the rollers of the first roller pair . This speed difference enables the sheet to be pulled through the folding station in a tensioned state. The invention also relates to a folding machine for carrying out the method, wherein not only an embodiment with a standard roller unit is provided, but also an embodiment with a special roller unit is proposed. According to the invention, either the drive train or the folding roller diameter is adjusted in the folding machine.

Description

technical field [0001] The invention relates to a method and a fence folder for folding sheets. Background technique [0002] Barrel folding machines and knife folding machines are known from the prior art. A combination of a fence folder and a knife folder is popular as a hybrid folder. Here, the parallel folds are folded in a fence folding device and the crossing folds are folded in a subsequent knife folding device. In this case, the sheets pass through at least the following stations in the direction of passage of the hybrid folder: feeder, transfer table, fence folding device, knife folding device, delivery. [0003] DE 10 2004 041 471 A1 discloses the construction of a fence folder with several fence folders. In this case, a crease is produced in each folding device. Each fence folding device comprises a folding fence and three folding rollers arranged in two folding roller pairs. The folding rollers are themselves interconnected by means of gears, flat or toothed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H45/16B65H45/12
CPCB65H45/147
Inventor M·豪普特-特劳M·贝尔曼
Owner HEIDELBERGER DRUCKMASCHINEN AG