Patent ID: 9415541
Filing Date: 2016-08-16
CPC Classification: B29C,B29L,B32B

Claim Text:
1. A hot-wedge welding device for overlap welding plastic webs, comprising a hot wedge that has two hot-wedge flat sides which start at a hot-wedge rear face and adjoin one another at a hot-wedge front edge, and is attached to a chassis borne by drive rollers with the hot-wedge front edge oriented counter to the direction of movement during welding, wherein the hot wedge can be moved relative to the plastic webs in a welding section of an overlap region between these webs so as to plasticize the welding section, further comprising a pressure device for pressing the plastic webs against the hot wedge, which comprises two pressure units, each of which being associated with one of the hot-wedge flat sides, and further comprising two mutually opposing pressure rollers, between which a plasticized welding section passes during welding, wherein the hot wedge is mounted by way of at least one bearing bushing, which extends between the two hot-wedge flat sides parallel to the hot-wedge front edge and the hot-wedge rear face at a distance therefrom, so as to be pivotable on a bearing shaft and thereby inclinable about the transverse axis of the hot wedge.