公开(公告)号：EP3402755A1

公开(公告)日：2018-11-21

申请号：EP16831565.3

申请日：2016-12-28

申请人： Zwiesel Kristallglas AG

发明人： LESCHE, Klaus ,  RÖCK, Gerhard ,  BREDL, Tobias

IPC分类号： C03B33/02 ,  B23K26/00 ,  B23K26/08 ,  C03B33/095 ,  B23K26/53 ,  B23K26/0622

CPC分类号： C03B33/0222 ,  B23K26/0624 ,  B23K26/0823 ,  B23K26/53 ,  B23K2103/54 ,  C03B33/095 ,  C03B33/0955

摘要： The invention relates to a method and a device for separating the excess glass (32) in the production of hollow glass products (12), wherein the method comprises: centring a hollow glass product (12) in a receiving device (10), which is designed to hold the hollow glass (12) and to rotate about a rotational axis in such a way that a separation line (24) along which the excess glass (32) is to be separated from the hollow glass product (12) to be produced is centred in relation to the rotational axis; processing the hollow glass product (12) in a plurality of positions along the separation line (24) by means of a laser beam in order to generate local filaments with a weakened glass structure during a rotation of the hollow glass product (12) about the rotational axis; and introducing energy along the separation line (24) in order to separate the excess glass (32) along the weakened glass structure.