摘要:
Coiling device ('R') and relative method for a windable long, metal product (10). The device ('R') comprises a mandrel (12) having a substantially circular transverse section and rotating around a horizontal, vertical or inclined axis, a containing element (13) to contain the metal product (10) arranged in correspondence with the mandrel (12) and substantially orthogonal to the axis, and at least a guide and containing device (15, 16) able to be driven between a first working position wherein it cooperates with the mandrel (12), and a second inactive position wherein it is arranged distant from the mandrel (12). The containing element (13) comprises an annular channel (14) made in proximity with an outer surface of the mandrel (12). The guide and containing device (15, 16) comprises a groove (20) which defines an accompanying guide for the metal product (10) along an outer circumference of the mandrel (12) towards the annular channel (14), when the guide and containing device (15, 16) is in the first working position.
摘要:
Coiler for wire and metal bars, of the mandrel type with vertical axis involving a base flange (4) for the support of the coil base and mandrel sectors (6) hinged at the base (41), which are able to be moved on the upper part by a coiler cylindrical shape with a collapsed conical shape of spool extraction and corresponding upper flange sectors (7) hinged on the upper part (10), moveable in concomitance of said mandrel sectors, respectively from a horizontal radial position to a position rotated upwards to allow the extraction of the coil and vice-versa, including a coaxial device (2), able to be moved longitudinally along the axis of the mandrel, and equipped with lever-operated means (21, 60, 61, 62) and rack means (22, 10, 71 ) of movement of said mandrel sectors (6) and flange sectors (7) so that: when said coaxial device (2) is lowered: said levers (61) are directed upwards and withdraw said mandrel sectors (6), while said rack (22) rotates said flange sectors (7) upwards; when said coaxial device (2) is lifted: said levers (61 ) are carried substantially radially and push said mandrel sectors (6) outwards, while said rack (22) rotates said flange sectors (7) downwards, namely substantially horizontally.
摘要:
Winding plant for rolled-stock of the type involving, downstream of a rolling-mill plant, movable wire-entry guide jaws (431) mounted on two interdependent movements (43) with: a first movement for rotational arm excursion (4301, 4310, 43101, 43102) in approach to or complete sending-away from said reel (AV); a second movement for limited, rapid excursion towards and away from the position of the wire-guide for the formation of the first turns of the coil adjacent to said reel (4311) by means of pivoting at the end of the arm of said first movement (4310).
摘要:
The invention relates to a cooled mandrel for winding a strip product. The inventive mandrel comprises an assembly of adjacent segments (2) which are mounted to slide radially on a central shaft (1) and which are each equipped with a cooling circuit (24, 24'). The aforementioned cooling circuit comprises two holes, namely an inlet (75) and an outlet (75'), which are each connected by means of a variable-length connector (7, 7') to a heat transfer fluid-feed (5) or -discharge (5') conduit respectively. According to the invention, the connectors (7, 7') corresponding to each segment (2) are connected to a dispensing part (6) which is disposed on a lateral surface (13') of the shaft (1). Moreover, the above-mentioned supply (5) and discharge (5') conduits, which are disposed inside the central shaft (1), open transversely onto said lateral surface (13') of the shaft.
摘要:
The invention is particularly directed to the problem of creep deformation in a coiled aluminium strip, which occurs during coiling and for a period thereafter. the problem arises because the profile of the strip across its width is not flat, and is in fact usually thicker in the middle than at the edges (positive crown). To cater for this, the invention provides that the spool (1) onto which the coil is wound is adapted to provide more support to the strip in the centre than at the edges. Various ways of achieving this are described; one example, as illustrated, is to make the central portion (2) of the spool (1) of greater diameter than the end portions (3) of the spool. A strip having a positive crown which is wound onto such a spool was found to exhibit significantly reduced creep strain, leading to reduced creep deformation.
摘要:
The invention concerns a device for winding/unwinding metal strips, in particular for steel bands, comprising a mandrel (4) mounted mobile in rotation in a bearing (4a), and serves to provide means for pivoting, seizing, centering and supporting the mandrel (4) of the winding/unwinding device. Therefor, the invention is characterized in that the bearing of the mandrel (4) is enclosed, on the outer ring (6) of the bearing, in an annular slot (7), and said outer ring (6) can be centered by means of a fixing element (8) capable of being closed inwards when the mandrel (4) is inserted, or can be freely mobile inside said annular slot (7) when the fixing elements (8) are returned outwards.
摘要:
A method for coiling thin metal strip on a coiler mandrel, which is adjusted in diameter, in which, at the beginning, the inner windings of the coil are coiled on the adjusted coiler mandrel diameter, and, after the final winding of the coil, the coiler mandrel is pulled out, or the coil is taken off. One or more profile grooves are pressed into one inner winding or into several adjacent inner windings on the circumference during rotation of the coil.
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:
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.