SET OF PROFILE BENDING BENCHES Russian patent published in 2012 - IPC B21D5/06 

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and may be used in profile bending machines for forming combined end flange frame sections at the set of banding benches mounted downstream of the set forming frame sections. Every bench comprises dual guide columns fixed at foundation plate bottom and in top shoes coupled by fixed brace in crosswise direction. Bearing assemblies are arranged between plates and shoes on guide columns to displace there along and be locked in definite position. Top and bottom drive rolls with end flange shaping elements running in bearing assemblies comprises top and bottom drawing rolls arranged at medium section rigidly fitted in top and bottom drive rolls. Note here that top drawing rolls have undercut faces and developed hubs. Die rolls with open shaping surfaces are articulated with top drawing roll hubs and rigidly coupled with fixed brace by rod element. Male die rolls are fitted on top drive roll to rotate out of synchronism therewith to face their female die roll. Their face surfaces have matching shaped surface on the side of female die roll. Bottom drive roll supports bottom drawing rolls of governing frame section. Note here that drawing top and bottom rolls stay in direct contact or via distance sleeves. Note also that the width of their outer rims does not exceed the distance between inner edges of end flanges being formed.

EFFECT: expanded performances.

20 dwg