APPARATUS AND METHOD FOR PRODUCING A BELLOWS

摘要

The invention relates to an apparatus (200) for producing a bellows (101) from a filter medium (102), comprising: an embossing device (300) for embossing fold lines (116) into the filter medium (102) which runs through the embossing device (300), a folded section (117) of the filter medium (102) being delimited by two adjacent fold lines (116); an adhesive application device (400) for applying an adhesive (114) to the embossed filter medium (112); and a folding device (600) for folding, in a zig-zag manner, the embossed filter medium (102) to which the adhesive was applied. The folding device (600) has a plurality of adjacent supporting elements (603 - 613) which can optionally be moved into or out from a folding space (614) of the folding device (600). The supporting elements (603 - 613) are designed such and are movable into the folding space (614) such that at least one folded section (117) of the folded filter medium (102) can be supported by the respective supporting element (603 - 613). The folding device (600) is designed such as to move the supporting elements (603 - 613), which have been moved into the folding space (614), in a direction of conveyance (F) of the filter medium (102) along with the folded filter medium (102). A method for producing a bellows (101) is carried out using the apparatus (200) previously described.