摘要:
The invention relates to a rolling mill including a frame, at least one pair of working cylinders capable of defining the air gap of the strip to be rolled, as well at least one line (51, 52, 53, 54) for spraying a lubricant and/or coolant fluid, arranged next to the plane of the strip to be rolled. According to the invention, said line (51, 52, 53, 54) is rigidly connected to said frame via a hinged mechanical link, said mechanical link including resilient means (71, 72, 73, 74) forcing said line (51, 52, 53, 54) into at least one operational position, toward the plane of the strip, and allowing, in the event that a force on said line tends to separate the line, greater than a threshold value, the deformation of the resilient means (71, 72, 73, 74) against the return force thereof, and thus the retraction of the line toward a position separated from said at least one operational position.
摘要:
The invention relates to a shearing device (1) for fragmenting a metal strip, said device comprising two counter-rotating drums (2, 3), arranged facing one another, a drive device connecting the drums and synchronising the rotation speed thereof, and at least one pair of blades, the blades of the pair being supported respectively by the two drums (2, 3), the blades of the pair being intended for engaging by shearing effect during the rotation of the drums (2, 3) in order to cut the waste, the blades of the pair having, from the cutting edge (4) thereof, planar surfaces, referred to as overlapping surfaces, overlapping and facing one another at least locally during the shearing between blades, each blade being secured transversely to the drum (2, 3), at an angle relative to the axis of rotation (A1, A2) of the drum (2, 3) and such that the plane that passes through said overlapping surface of the blade forms an angle with the axis of rotation (A1, A2) of the corresponding drum, such as to produce gradual shearing. According to the invention, said overlapping surface of each blade (20; 30; 21; 31; 22, 15, 32; 23; 33) is tilted relative to the corresponding drum (2, 3) such that the plane passing through said overlapping surface does not intersect the axis of rotation of the drum (2, 3) on the active width of the drum.
摘要:
The invention relates to a cassette (1) intended to be fitted to a rolling mill, the cassette (1) forming a self-supporting assembly comprising: - A cylinder (2) intended to constitute one of the two intermediate cylinders of the rolling mill, - two chocks (3) on which are mounted the ends of the cylinder (2), - at least one support arm (4) of said at least one lateral support member, the support arm (4) extending between the two chocks (3) and being mounted pivotably with respect to the chocks. According to the invention, said cassette (1) comprises at least one pair of support elements (5) receiving the ends of a rotating shaft (6) of said at least one support arm (4) and such that the two support elements (5) are fixed in a removable manner, respectively, on the two chocks (3) and in such a way as to allow disassembly of the at least one support arm (4) from the chocks (3) and/or assembly of the at least one support arm (4) on the said chocks (3) independently of the disassembly/assembly of the cylinder (2).
摘要:
La présente divulgation est relative à un outil de saisie (8) comprenant un arbre support (80), ainsi qu'un premier doigt (81) et un deuxième doigt (82), solidaires de l'arbre support (80), déplaçables l'un par rapport à l'autre depuis une première position d'écartement (P1) entre le premier doigt (81) et le deuxième doigt (82), supérieur à la longueur entre la distance entre un premier flanc (121) et un deuxième flanc (122) d'un cylindre de travail (12), et jusqu'à une deuxième position (P2) pour laquelle le premier doigt (81) et le deuxième doigt (82) sont rapprochés l'un de l'autre jusqu'à pénétrer respectivement une première cavité de centrage) du premier flanc (121) et une deuxième cavité de centrage du deuxième flanc (122) pour assurer la saisie du cylindre de travail (12).
摘要:
The invention relates to a method for changing the configuration of a sexto-type rolling mill, wherein the rolling mill is changed from a first configuration (C1) with a range of diameters of working cylinders (3',4'), keeping the chocks (E1, E2) by returning the chocks (E2) of the intermediate cylinders (5, 6) and by returning the chocks (E1) of the working cylinders. The invention also relates to a rolling mill suitable for the implementation of said method.