Apparatus and method for producing a bellows

US10376828B2 · kind B2 · utility

Assignee

• MANN+HUMMEL GmbH · DE

Inventors

• Klaus Gehwolf · Mamming, DE
• Tobias Tandetzki · Vilsbiburg, DE
• Josef Rohrmeier · Laberweinting, DE
• Gelase Mbadinga Mouanda · Bietigheim-Bissingen, DE
• Michael Wank · Coburg, DE
• Gerhard Weindl · Fulda, DE

Key dates

• Filing date: Mar 23, 2016
• Grant date: Aug 13, 2019
• Expiry date: Jul 31, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B31D5/0082
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A device for producing a bellows from a filter medium, including: an embossing device embossing fold lines into a filter medium that runs through the embossing device, producing an embossed filter medium for folding into a folded filter medium; the folded section of the filter medium being delimited by two adjacent fold lines; an adhesive application device applying adhesive onto the embossed filter medium; and a folding device folding, in a zig-zag manner, the embossed filter medium onto which the adhesive was applied into the folded filter medium; wherein the folding device includes a plurality of adjacent supporting elements that can be moved into or out of a folding space of the folding device; wherein the supporting elements are movable into the folding space such, that at least one folded section of the folded filter medium is contacted and supported by a respective one of the plurality of supporting element.