Non-circular suction wheel and sheet feeder

A non-circular, suction opening technology, applied in the direction of object separation, sending objects, pile separation, etc., can solve problems such as inability to accurately pre-specify time points, suction interference, etc.

Active Publication Date: 2013-06-19
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another reason for the suction disturbance is that the point in time at which the topmost sheet is picked up by the suction wheel cannot be precisely predicted because the distance between the suction wheel and the upper edge of the stack is too great.

Method used

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  • Non-circular suction wheel and sheet feeder
  • Non-circular suction wheel and sheet feeder
  • Non-circular suction wheel and sheet feeder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Figure 1a A first variant of the suction wheel 1 according to the invention is shown: the suction wheel 1 has a suction wheel body 20 and is divided into a first section 21 and a second section 22 . Each segment 21 , 22 has a suction area 24 , a holding area 25 and a release area 26 . The suction area 24 is used for suctioning sheets not shown here. The holding area 25 serves to hold the suctioned sheets and to transport them during the rotation of the suction wheel 1 . The release area 26 serves to release the sucked sheets in order to be able to transfer them, for example, to a subsequent transport device. The suction wheel body 20 of the suction wheel 1 is of non-circular design. This means that the suction wheel body 20 does not have a uniform radius. Conversely, the radius rA of the suction wheel 20 in the suction region 24 is greater than the radius rH in the holding region 25 . The transition between the smaller radius rH and the larger radius rA is designed...

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PUM

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Abstract

In accordance with the invention, a suction wheel(1) contains a suction wheel body (20)rotatable about an axis of rotation(29) and equipped with a plurality of suction openings(27) distributed over its circumferential surface(28) to attract sheets(1000) by suction and to transport them. The suction wheel body(20) is advantageously configured to be non-circular. The suction wheel body(20) is provided with an attraction area (24) used to suck the sheets (1000), a retaining area (25) used to remain and convey the sheets (1000), and a release area (26) used to release the sheets (1000). The utility model also relates to a sheet feeder (10) provided with the suction wheel(1).

Description

technical field [0001] The invention relates to a suction wheel with the features of claim 1 and to a sheet feeder with such a suction wheel with the features of claim 9 . Background technique [0002] It has long been known from the prior art to lift the respective first sheet in a sheet feeder by means of a suitable lifting and / or conveying device, for example by means of a suction device and / or a suction wheel. The sheets are separated from the sheet stack and the sheets are fed separately from one another to a sheet processing machine, such as a sheet folder. The sheets can here be supplied to the sheet processing machine either spaced apart or stacked one above the other. [0003] DE 10 2008 048 287 A1 describes a sheet feeder for a folding machine with a lifting and separating suction in the area of ​​the rear edge of the sheet stack and a suction wheel in the front area of ​​the stack . In this case, adjusting the position of the suction wheel makes it possible to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H3/10B65H29/68B65H29/24
CPCB65H2406/33B65H2406/332B65H2801/21B65H3/10
Inventor M·豪普特-特劳
Owner HEIDELBERGER DRUCKMASCHINEN AG
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