Producing wave winding wires for a coil winding of an electrical machine via flat winding. A row of shaping elements, each having a holder for a straight wire section of a wire and a bending mold for shaping a wave winding head region between the straight wire sections, are moved in a linear manner relative to one another on a linear guide mechanism and are rotated about a respective axis of rotation, in order to form a meandering wave winding wire with straight wire sections and chevron-shaped wave winding heads in between by rotating neighboring shaping elements in opposite directions with their axes of rotation converging. A change in spacing of the linear guides is converted in the rotational movement of the shaping elements. A bending of the wire ends of the wire is carried out before the meandering bending of the wave wire winding.

Producing wave winding wires for a coil winding of an electrical machine via flat winding. A row of shaping elements, each having a holder for a straight wire section of a wire and a bending mold for shaping a wave winding head region between the straight wire sections, are moved in a linear manner relative to one another on a linear guide mechanism and are rotated about a respective axis of rotation, in order to form a meandering wave winding wire with straight wire sections and chevron-shaped wave winding heads in between by rotating neighboring shaping elements in opposite directions with their axes of rotation converging. A change in spacing of the linear guides is converted in the rotational movement of the shaping elements. A bending of the wire ends of the wire is carried out before the meandering bending of the wave wire winding.

A wave winding device for manufacturing wave windings has a winding unit with a winding blade device rotatable about a winding axis in a winding direction and on which a winding wire is to be wound. The wave winding device has at least one wire feed device that supplies the winding wire to the winding unit in a feed direction to wind the winding blade device, and also has a transport device for transporting the winding wire, which is wound onto the winding blade device to form a wave winding, in a transport direction parallel to the winding axis. The transport device has a conveyor system that moves the wave winding through the transport device in the transport direction. The conveyor system is supported in the transport device so as to be rotatable about a rotational axis in the winding direction, coaxially with respect to the winding axis.

Feedback-based systems and methods for bending wire are provided. The systems and methods may allow for modification of wire bending based on feedback received from one or more feedback-generating elements (e.g., image-capturing device(s), computer processing device(s), vision systems, etc.) used for monitoring one or more characteristics of a wire (e.g., shape, size, dimension, angular configuration, etc.) to determine, and provide to various wire-bending components of the system, appropriate modifications to the wire-bending process. Modifications to the wire-bending process may occur in real time without stopping the wire-bending process. Furthermore, a wire may be bent into a sinusoidal wire structure for forming springs for use in various applications.

A method for forming a wave form for a stent includes moving a first forming portion of a first forming member across an axis along which a formable material is provided in a first direction substantially perpendicular to the axis to engage and deform the formable material while engaging the formable material with a first forming portion of the second forming member. The method includes moving the first forming portion of the first forming member and the first forming portion of the second forming member across the axis in a second direction that is substantially opposite the first direction to draw and form the formable material over the first forming portion of the second forming member, disengaging the first forming member from the formable material, and moving the first forming member to position a second forming portion of the first forming member to face the formable material.

A sinuous spring for a furniture item includes various elements. For instance, a sinuous spring might include bars that are both parallel and non-parallel. The parallel bars might be positioned in a middle segment, and the non-parallel bars might be positioned in opposing end spring segments. A sinuous spring might be fabricated using various devices and methods, such as a wire-fabricating apparatus including a wire-forming mechanism and a length-adjusting mechanism. The wire-forming mechanism includes one or more sets of wire-forming dies that receive a continuously fed wire and that form the wire into a wire-shape configuration (e.g., sinuous-shape configuration). The length-adjusting mechanism includes a set of grooved wheels that receive the formed wire in the grooves and rotate to stretch or compress the formed wire.

A sinuous spring for a furniture item includes various elements. For instance, a sinuous spring might include bars that are both parallel and non-parallel. The parallel bars might be positioned in a middle segment, and the non-parallel bars might be positioned in opposing end spring segments. A sinuous spring might be fabricated using various devices and methods, such as a wire-fabricating apparatus including a wire-forming mechanism and a length-adjusting mechanism. The wire-forming mechanism includes one or more sets of wire-forming dies that receive a continuously fed wire and that form the wire into a wire-shape configuration (e.g., sinuous-shape configuration). The length-adjusting mechanism includes a set of grooved wheels that receive the formed wire in the grooves and rotate to stretch or compress the formed wire.

A method for forming a wave form for a stent includes moving a first forming portion of a first forming member across an axis along which a formable material is provided in a first direction substantially perpendicular to the axis to engage and deform the formable material while engaging the formable material with a first forming portion of the second forming member. The method includes moving the first forming portion of the first forming member and the first forming portion of the second forming member across the axis in a second direction that is substantially opposite the first direction to draw and form the formable material over the first forming portion of the second forming member, disengaging the first forming member from the formable material, and rotating the first forming member to position a second forming portion of the first forming member to face the formable material.

A method for forming a wave form for a stent includes moving a first forming portion of a first forming member across an axis along which a formable material is provided in a first direction substantially perpendicular to the axis to engage and deform the formable material while engaging the formable material with a first forming portion of the second forming member. The method includes moving the first forming portion of the first forming member and the first forming portion of the second forming member across the axis in a second direction that is substantially opposite the first direction to draw and form the formable material over the first forming portion of the second forming member, disengaging the first forming member from the formable material, and rotating the first forming member to position a second forming portion of the first forming member to face the formable material.

Drawing unit for drawing at least one long metal product (P), configured to make the at least one long metal product (P) advance along a nominal axis of feed (A) and provided with at least a first motorized roll (13) and with at least two second rolls (14) operating at the periphery of the first roll (13) and defining, with the latter, respective passage gaps (15). The at least two second rolls (14) are located one on one side and the other on the other side of the axis (N) orthogonal to the nominal axis of feed (A) that passes through the center of rotation of the first roll (13). The second rolls (14) are associated to movement members (21) to move the second rolls (14) in a parallel form with respect to each other and in a direction substantially orthogonal to said nominal axis of feed (A) in order to adjust the passage gaps (15). The passage gaps (15) have, during use, along the straight line (R) that joins the center of the first roll (13) with the center of the respective second roll (14), an amplitude (G) that is bigger in size than the nominal diameter (D) of the metal product (P).