Suction conveyor device for transporting flat items

Abstract

A suction conveyor device, comprising a suction arrangement having a suction side on which low pressure is generated, continuously rotating flexible conveying means made of flexible flat material having holes, an inner side enabling the conveying means to move along the suction side, and an outer side for receiving flat items in the active area of the suction side, where the conveying means moves in the transporting direction, the suction arrangement and the conveyor means designed with a transport path width in the active range perpendicular to the transporting direction. The conveying means includes continuously circulating individual, single-piece, flexible conveying means, both lateral edges thereof extending in the transporting direction at a distance from each other being at least the same as the total width of the transport path such that the individual, single-piece flexible conveyor means extend over the total width of the transport path.

Description

technical field [0001] The invention relates to a suction conveyor for transporting flat objects, especially paper, preferably on the path from a cutting station to a stacking station in a plant in the paper processing industry, with a suction device having a suction side, On which a negative pressure is generated and has a continuously revolving flexible delivery means arrangement, which is made of a flexible flat material equipped with small holes and has an inner side, through which the delivery means is arranged on the suction side of the suction device moves along the upper side and has an outer side for receiving flat objects in the effective area of ​​the suction side of the suction device, where the conveying means arrangement moves in the direction of transport, wherein the suction device and the conveying means arrangement are formed in this way, in In the effective area of ​​the suction side of the suction device is defined a conveyor belt whose width is transverse ...

AI Technical Summary

Problems solved by technology

[0005] Although in practice suction conveyors with the usual construction described above have proven reliable in many applications, it has been found that the sliding positioning of the return run of the conveyor belt for guiding flat objects on the suction plate leads to Increased friction with the perforated plate, which is especially also due to the negative pressure generated by the suction device, which acts not only on the flat objects but also on the conveyor belt

This friction not only creates increased resistance for driving the conveyor belt, which results in a more severe drive load and increased energy consumption, but also causes greater belt wear

It has likewise been found that the side edges of flat objects extending in the conveying direction can come into contact with the side edges of adjacent conveyor belts without overlapping, which would cause damage to the flat objects on their side edges

Especially when processing and transporting flat objects of different sizes, the risk of damage due to such collisions increases, since it is not possible or only at unacceptable expense to adjust the conveyor belt to different Specification

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