摘要:
The present invention relates to a self-centering expanding shaft with a composite system - of the type comprising a structural cylinder, equipped with a pneumatic expanding system to block a reel and housing at least one pneumomechanical module to center the reel, said pneumomechanical module comprising a pair of opposed slidable thrust elements (3), coupled with gripping elements (4) apt to be extracted from and withdrawn into said structural cylinder (1), and two pressure chambers (8a,8b) positioned at its ends, in which said two pressure chambers (8a,8b) are connected through a single pneumatic line (10) which crosses the two thrust elements (3), the extraction of said gripping elements (4) being obtained by supplying compressed air into said compression chambers (8a,8b), and in that, at least an elastic element (7) is provided to act on said thrust elements (3) so as to reset the conditions of rest.
摘要:
A multipart reel for a coil of wire, comprising: an upper flange (1) with spokes for connection to a first hub (2) which is connected to the end of a column (3) provided with a second hub (4) at its other end; a slider (9), which can slide on the column (3) and has at least one plurality of inclined planes and means for coupling to lifting means; a lower flange (17), provided with spokes (17d) for connection to a hub (18) which is adapted to mate with the second hub arranged at the end of the column and shaped so as to form engagement means; a plurality of curved panels (19, 22), which are adapted to form a winding surface, are hinged on the spokes of the upper flange (1) and have engagement means at their lower end.
摘要:
Coiling machine for rolled stock (12) located downstream of a rolling train (11), comprising a mandrel (20) mounted rotatable around an axis of rotation (21) on a stationary structure (22), the mandrel (20) being mounted cantilevered on the stationary structure (22) and comprising an inner wall (24) orthogonal to the axis of rotation (21) and an outer end with which a cylindrical plate (29) is suitable to selectively cooperate, the cylindrical plate (29) being movable from a working position, wherein it is arranged substantially orthogonal to the axis of rotation (21) so as to define a side wall parallel to the inner wall (24), to allow the coil of rolled stock (12) to form, and an inactive position, wherein it is distanced and lowered with respect to the mandrel (20) so as to allow the coil of rolled stock (12) to be axially removed.
摘要:
The proposal is for a piston-cylinder unit (14) for directly driven coilers (1) for winding rolled sheet metal into coils. A pressure medium source can supply the piston-cylinder unit (14) with pressure medium via rotary feeds (8) which are fitted on a shaft extension or a coiler shaft (4).
摘要:
Une bobineuse sert à enrouler et/ou à dévider des feuillards métalliques avec une force de traction comprise entre 10 kN et 1000 kN. La bobineuse comprend un tambour expansible d'enroulement (1) porté par un arbre creux (2) monté sur un support (3) et traversé par une tige d'entraînement (5) qui sert à actionner le tambour expansible d'enroulement (1). La tige d'entraînement (5) est formée par la tige de piston d'un cylindre de réglage (4) agencé sur l'extrémité de l'arbre creux (2) opposée au tambour d'enroulement (1). Afin de réduire le moment d'inertie de masse de la bobineuse, afin d'éviter un jeu dans l'entraînement et de simplifier la structure de la bobineuse, l'entraînement de la bobineuse comprend un moteur agencé dans le support (3), entre les paliers (10, 11) de l'arbre creux (2), et dont le rotor (13) est monté sur l'arbre creux (2).
摘要:
Es wird eine Bundsammelstation für Drahtwalzstrassen mit einer Bundbildekammer, die aus Vorsammler, Sammeldorn und Begrenzungskorb besteht beschrieben, bei der wenigstens zwei Sammeldorne mittels Schwenkbewegung wechselseitig in eine Beladestellung und/oder Entladestellung bringbar sind. Der Umhüllungdurchmesser des Sammeldorns in der Beladestellung ist gegenüber seinem Durchmesser in seiner Entladestellung für ein aufgewickeltes Drahtbund veränderbar. Hierfür besteht der Sammeldorn aus einer Mehrzahl von Dornstangen, von denen einige festehend angebracht und die übrigen gegenüber den feststehenden radial beweglich gelagert sind.
摘要:
The present invention relates to a rolling mill (1) comprising: - a rolling stand (2) comprising at least two rolls (3) between which a strip (N) to be rolled is made to pass; - at least one reel (4A, 4B) comprising a mandrel (10) for winding and/or unwinding said strip (N) during the rolling operations, wherein said mandrel (10) comprises a clamping system (20) associated with a slot (11) of the mandrel (10) for clamping one end of the strip (N) in said slot (11) during a step of winding the strip (N) on the mandrel (10). The invention is characterized in that the clamping system (20) comprises at least one grip (20A) forming a clamp together with an inner wall (11A) of said slot (11), said at least one grip (20A) being coupled to a closed hydraulic circuit (21, 22, 23, 24) of the clamping system (20), which allows said at least one grip (20A) to translate relative to the wall (11A), so as to switch from a first open position, wherein the strip (N) can be inserted into said slot (11), to a second closed position, wherein the strip (N) can be clamped in said slot (11), and vice versa.