摘要:
Bending machine for one or more metal products such as, for example, bars (11a, 11b), reinforcement round pieces, structural shapes, tubes or other profiles, comprising at least a bending unit, a main drawing unit, able to draw the bar along an axis of advance toward the bending unit, and a main shearing unit disposed between the bending unit and the main drawing unit. The machine also comprises a secondary drawing or extraction unit disposed between the main drawing unit and the main shearing unit. The secondary drawing or extraction unit is configured and programmed to draw an end portion of bar, exiting from the main drawing unit, along the axis of advance toward the bending unit.
摘要:
An apparatus and method for bending elongated metal elements comprising a bending station provided with a first contrasting pin, a bending support defining a first bending plane on which the elongated metal elements are positioned and advance, and a first bending pin mounted mobile around the first contrasting pin, in order to bend the elongated metal elements on the first bending plane in cooperation with the first contrasting pin. The bending station comprises a second contrasting pin mounted on the first bending pin, and a second bending pin disposed mobile with respect to a bending support in a slanting direction with respect to the bending plane, in order to bend the elongated metal elements in cooperation with the second contrasting pin on a second bending plane, angled with respect to the first bending plane.
摘要:
A device and method to feed bars which picks-up and removes selectively from a bundle one bar in order to dispose the bar for use in an operating machine. The device including first magnetic members, which separate from the bundle an end segment of a plurality of bars and dispose the end segments of the plurality of bars on a plane distanced with respect to the bundle, and second magnetic members, which cooperate with the first magnetic members so as to pick-up at least one bar at a time from the plurality of bars and to prepare the bar for sending to the operating machine. The device also includes third magnetic members, which temporarily hold the bar or bars picked-up by the first magnetic members, forming substantially a pick-up plane, in an intermediate step, from which the second magnetic members selectively pick-up the bars to be sent to the machine.
摘要:
Combined assembly to straighten and linearise sections (11), which have a solid or hollow cross section and may include externally a round or ribbed surface, or projections, or helicoidal TOR ribs, or a three-lobed or cross-shaped or star-shaped cross section, etc., the sections being in the form of bars or wound bundles (12), the assembly comprising, in positions lying substantially on the same plane, a first straightening unit (20) having immediately upstream and immediately downstream respectively an inlet feeder unit (14) and an outlet feeder unit (21), and comprising also a second straightening unit (23) having downstream an orthogonal regulation unit (24) followed by a contrast unit (27), the second straightening unit (23) being positioned on a path of the sections (11) which includes an S-shaped or Z-shaped bend (22).
摘要:
Method for orthogonal adjustment of straightened bars and an orthogonal adjustment unit located downstream of a bar straightening machine, whereby the bars may be of a rolled, drawn or extruded type or be obtained with a forming machine and may have any round, oval, square, rectangular or polygonal, etc. section and be solid or hollow. A desired variable deformation opposed to the curved development determined by the last three staggered rolls (30-31-131) of a straightening assembly (11) is imparted to the bar (14-114) after the straightening and immediately downstream of the straightening assembly (11) by the orthogonal adjustment unit. The orthogonal adjustment unit includes at least one adjustment roll (13) which imparts deformation to the bar (14-114) by acting thereon radially in a desired position, within an angle of 360.degree., lying on a plane normal tothe nominal axis of the straightening machine working and having as its axis that nominal axis.
摘要:
Device for the controlled and independent rocking of a bending platform and straightening platform in bending-shaping machines having an independent bending platform (13) located downstream of a straightening platform (11), in which machines the straightening platform (11) has a preferred inclination, whereas the bending platform (13) has an inclination depending on the product being processed at that time, the axis of rotation (17) for adjustment of the inclination of the bending platform (13) being positioned below and at a distance "x" from the axis of the inlet (16) of rods (18) onto the bending platform (13), in which device the straightening platform (11) is supported on a parallelogram system (20) having the axis of lower pivots (26) distant by the value "x" from the axis of upper pivots (25), the axis of the lower pivots (26) coinciding with the axis (17) of rotation of the bending platform (13), whereas the axis of upper pivots (25) is kept so as to coincide substantially with the axis of the inlet (16) of rods (18).
摘要:
A device to feed bars located upstream of a machine to shear bars to size from a bundle to be sheared, the single bars being withdrawn from a selected bundle of bars, a bundle of aligned and butted bars for shearing being delivered to such shearing machine by at least one support frame holding a bundle of bars to be sheared. A movable carrier advances the support frame. An assemblage to align and abut the bundle of bars prepares the bars for shearing. The assemblage to align and abut the bundle of bars including a movable gripper into which the bundle of bars are introduced and a movable abutment plate for contacting and aligning the bundle of bars.
摘要:
A drawing and/or straightening unit for feeding one or more oblong metal products to a machine for working the metal products is included that has a first roller on which at least one metal product being fed is positioned longitudinally. Also included is a second contrasting roller, opposite the first roller. This keeps the metal product correctly positioned during feed. The drawing and/or straightening unit has actuators operationally associated with the second roller to initially move and position the second roller with respect to the first roller and to vary the distance between the rollers. The actuators have actuators for initial movement of the second roller to the first roller, and for selective and controlled movement of the second roller.
摘要:
A device and method to feed metal bars associated with a work machine including at least a drawing member for the metal bars. The device includes loading members to load one or more metal bars to the work machine, and one or more containing members in which the metal bars are disposed in respective bundles. The device also includes deflector members disposed downstream of the containing members and upstream of the drawing member, and movable laterally in independent manner with respect to the containing members, so as to be able to condition the position of at least a head portion of each of the metal bars picked up, relative to their lying position in the containing members, so as to displace them sideways one by one, or in groups, with respect to a nominal axis (X) in which the metal bars lie stationary in the respective containing member.
摘要:
Bending machine to obtain shaped elements from pre-cut profiles, equipped with a drawing assembly which draws the profiles, first shearing means arranged downstream of the drawing assembly and bending means arranged downstream of the first shearing means. Downstream of the bending means are arranged second shearing means to eliminate the terminal segments of the profiles corresponding to the difference between the linear development of the shaped element to be produced and the length of the pre-cut profiles.