INSTALLATION AND METHOD FOR FORMING BEADS Russian patent published in 2017 - IPC B29D30/48 

FIELD: construction.

SUBSTANCE: method is carried out by means of a bead-forming machine which comprises a rotational drum having a plurality of separate housings spaced apart along the circumference of the rotational drum and intended to be wrapped with a strip bead apex having a short base and two other long sides around the rotational drum in the annular shape. A plurality of lifting levers is disposed along the circumference and, respectively, with the possibility of turning around the respective hinges supported by separate rotational drum housings in order to lift the bead apex by means of turning the lifting levers. There is a turning device for turning the lifting levers. A plurality of sliding elements is formed as contact areas of the lifting levers that come into contact with the bead apex so that the bead apex can radially slide relative to the lifting levers. Wherein the plurality of sliding elements is formed by a plurality of rotational rollers rotatably mounted in the longitudinal direction of the lifting levers so that they can rotate about the axes parallel to the respective rotation axes of the respective hinges.

EFFECT: excluding the formation of folds of the bead apex.

4 cl, 6 dwg