WAVE WINDING APPARATUS

Abstract

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.

Claims

1. A wave winding device for manufacturing wave windings, comprising: a winding unit with a winding blade device which is rotatable about a winding axis in a winding direction and on which a winding wire is to be wound; at least one wire feed device that supplies the winding wire to the winding unit in a feed direction in order to wind the winding blade device; and a transport device that is designed 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, wherein the transport device has a conveyor system that moves the wave winding through the transport device in the transport direction (X), and wherein 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.

2. The wave winding device according to claim 1, further comprising a control unit that synchronizes the rotation of the winding blade device and of the conveyor system in such a way that both rotate about the same rotational axis, essentially at the same speed in the winding direction.

3. The wave winding device according to claim 1, further comprising at least one retaining means that is designed for holding a section of the winding wire while another section of the winding wire is moved relative thereto.

4. The wave winding device according to claim 3, further comprising at least one gripping or clamping element situated on the winding unit or on the transport device, the at least one gripping or clamping element being provided as the at least one retaining means.

5. The wave winding device according to claim 4, wherein the gripping or clamping element is supported on the winding unit so as to be displaceable in the transport direction.

6. The wave winding device according to claim 4, wherein the gripping or clamping element has clamping jaws with which the winding wire may be fixed between the clamping jaws and the winding blade device.

7. The wave winding device according to claim 3, wherein the at least one retaining means is designed for simultaneously holding a plurality of winding wires supplied in parallel to one another.

8. The wave winding device according to claim 3, wherein the at least one retaining means has at least one separation groove for accommodating only one winding wire.

9. The wave winding device according to claim 1, further comprising a pressing unit that is situated adjacent to the winding blade device, the pressing unit being designed for compressing the winding heads of the wave winding.

10. The wave winding device according to claim 2, further comprising at least one retaining means that is designed for holding a section of the winding wire while another section of the winding wire is moved relative thereto.

11. The wave winding device according to claim 10, further comprising at least one gripping or clamping element situated on the winding unit or on the transport device, the at least one gripping or clamping element being provided as the at least one retaining means.

12. The wave winding device according to claim 11, wherein the gripping or clamping element is supported on the winding unit so as to be displaceable in the transport direction.

13. The wave winding device according to one of claim 11, wherein the gripping or clamping element has clamping jaws with which the winding wire may be fixed between the clamping jaws and the winding blade device.

14. The wave winding device according to one of claim 10, wherein the at least one retaining means is designed for simultaneously holding a plurality of winding wires supplied in parallel to one another.

15. The wave winding device according to one of claim 10, wherein the at least one retaining means has at least one separation groove for accommodating only one winding wire.

16. The wave winding device according to claim 10, further comprising a pressing unit that is situated adjacent to the winding blade device, the pressing unit being designed for compressing the winding heads of the wave winding.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0015] FIG. 1 is a perspective view of an exemplary embodiment of the apparatus of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0016] The invention is explained in greater detail below with reference to the exemplary embodiment shown in FIG. 1.

[0017] The illustrated wave winding device has at least one feed device 2a, 2b (two feed devices are shown here; the invention expressly also encompasses wave winding devices having only one feed device or having three or more feed devices).

[0018] The feed devices 2a, 2b guide one or a plurality of winding wires 4 in a corresponding feed direction y1, y2 to a (shared) winding unit 1. The winding unit 1 has a winding blade device 10 that includes at least one winding blade which protrudes from the winding unit 1, transversely with respect to the feed direction y1, y2 (perpendicular to the Y axis), and around which the supplied wire 4 is wound. For this purpose, the winding blade device 10 has a rotational axis A about which the winding blade is rotatably supported in a rotational direction P1. The winding takes place in such a way that the at least one wire 4 is fixed, in particular pressed against the winding blade device 10, via retaining means such as grippers or clamping jaws (not illustrated in greater detail), and the winding blade device 10 undergoes a half rotation by 180 about the axis A. After each half rotation, the winding wire 4 is held via the retaining means and bent to form the characteristic wave. This may take place, for example, by translationally moving the wire nozzle unit 20a or 20b, which supplies the wire 4, in a direction Y transverse to the feed direction. The operation is repeated after another half rotation of the blade, which gradually results in a winding mat 4 having wave windings.

[0019] The resulting winding mat 4 is successively further transported away from the winding unit 1 and the winding blade device 10 in a transport direction X via a transport device 3, so that the winding blade may be short in the transport direction X and the installation space may have a space-saving design. The transport device 3 has a conveyor system which is designed here as a belt conveyor or toothed-belt conveyor or also a chain conveyor 31, 32, and which ensures that the winding mat 4 is transported away from the winding unit 1 in the transport direction X (in the present case, perpendicular to the vertical direction Z and perpendicular to the feed direction Y, y1, y2). The conveyor system 31, 32, the same as the winding blade 10, is supported on the transport device 3 so as to be rotatable about the machine axis A in the direction P1. In this way, the transport device 3 may accept the wave winding mat that results on the winding blade, while further waves are being created by rotating the blade and bending the wire 4. Complete windings are transported away in the direction X due to the corotation of the conveyor system 31, 32. In this way, winding mats 4 having virtually any given length are producible.

[0020] For additional machining of the winding heads of the wave windings, which result in each case by folding over the winding wire by 180 during each half rotation of the winding blade, a pressing unit which presses the winding heads flat may be provided between the conveyor system 31, 32 and the winding unit 1.