METHOD FOR PRODUCTION OF CHEVRON FILLER AND DEVICE FOR ITS REALISATION Russian patent published in 2008 - IPC B21D13/00 

FIELD: technological processes; metallurgy.

SUBSTANCE: creasing is made on sheet billet of paper type from its both sides. Billet is bent to provide relief with two-sided angles along creasing lines. Bending moment for bending of billet is created by point application of force in key zones of chevron structure along lines of cavities on both sides of billet. Device for filler production contains the following components that are serially installed and connected to main drive gear: decoiler, mechanism of preliminary corrugation, mechanism for corrugations approaching and calibration mechanism. At that mechanism of preliminary corrugation is arranged in the form of molding rollers that represent pairs of conjugated shafts that carry figure protrusions on the surface that perform the function of puncheons, with working edges that correspond in shape and size to bending lines on both sides of flat billet of chevron structure part, and also installed in the space between protrusions and connected to the shaft surface elastic elements that perform function of matrix for mentioned protrusions. Mechanism of corrugations approaching is arranged in the form of oppositely located and installed with the possibility of control of center-to-center distance of assembly rollers that have radially oriented assembly fingers.

EFFECT: higher quality and expansion of technological resources.

15 cl, 11 dwg