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Shunt for a web divided into several sectional webs

a sectional web and web technology, applied in the field of webs, can solve the problems of inaccurate lead of sectional webs and increase the problem of webs

Inactive Publication Date: 2005-10-13
BHS CORRUGATED MASCHEN & ANLAGENBAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] Use can be made of the solution according to the invention not only when a web is cut through entirely upon a change of format with the leading

Problems solved by technology

Strong swirls of air occur in particular when the lagging sectional webs enter the shunt, which may result in the sectional webs not being led accurately on their way to the cross cutters of the cross-cutter arrangement.
The higher the velocity of the web, the more grows this problem.

Method used

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  • Shunt for a web divided into several sectional webs
  • Shunt for a web divided into several sectional webs
  • Shunt for a web divided into several sectional webs

Examples

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Embodiment Construction

[0013] Seen in the conveying direction 1 of a web of corrugated board 2, the part of a corrugating machine illustrated in the drawing successively comprises a short cross cutter 3, a corrugating unit 4, a longitudinal cutter 5, a shunt 6 and a duplex cross cutter 7. A transfer table 8 is provided between the longitudinal cutter 5 and the shunt 6. Two tables, one on top of the other, are provided between the shunt 6 and the duplex cross cutter 7, a top table 9 of which leading to the top cross cutter 10 of the duplex cross cutter 7 and a bottom table 11 leading to the bottom cross cutter 12 of the duplex cross cutter 7. The shunt 6 includes shunting elements 13 of the type of so-called blades. These blades 13 are comprised of parallel, side by side bars of a width of for instance approximately 10 cm crosswise of the conveying direction 1, which are pivoted about a joint pivoting axis 14 that is located in vicinity to the table 8. By means of a linear drive, for example a pneumaticall...

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Abstract

A shunt for a web, in particular a web of corrugated board, which is to be divided into several sectional webs in the conveying direction, comprises several shunting elements which are disposed side by side below the web of corrugated board and which are individually movable at least into a top position and a bottom position. Several compressed-air nozzles are provided, which are disposed above the shunting elements and directed towards the shunting elements and which are individually actuated by compressed air.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention relates to a shunt for a web, in particular a web of corrugated board, which is to be divided into several sectional webs in the conveying direction. [0003] 2. Background Art [0004] Shunts, i.e. switches, of the generic type comprise several shunting elements crosswise of the conveying direction; these shunting elements are arranged side by side below the web and are individually movable into at least one top and bottom position of shunt. Adjusting drives are provided for these motions to be carried out; they move the individual shunting elements from one position of shunt into another. Shunts, or switches, of the generic type are provided in machines for treating, in particular dividing, webs, in particular webs of corrugated board; the sectional webs, mostly in the number of two, are fed to a cross cutter where the sectional webs are cut into individual sheets, so-called blanks, and deposited. The in...

Claims

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Application Information

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IPC IPC(8): B65H23/24B65H23/28B65H29/60B65H35/02
CPCB65H23/24B65H23/28B65H35/02B65H2406/122B65H2404/63B65H2220/09B65H2301/448
Inventor MICHLER, PETERGNAN, ALFONS
Owner BHS CORRUGATED MASCHEN & ANLAGENBAU
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