Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1984-08-03
1987-01-13
Taylor, Billy S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
29605, 242 709, 242 711, 242 714, H01F 4110
Patent
active
046358650
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a process for and apparatus twisting of wire ends onto contact pins of coils.
In the winding of electric coils, for example on a multiple coiler machine, it is customary to twist the contact pins arranged axially with respect to the coil axis on the flange sides of a coil form, by means of again axially arranged wire guides. The wire ends on the outer contact pins of the free-standing flange side of the coil receiver arranged perpendicularly to the support may be twisted on by the wire guide arranged axially to it. In contrast, the wire ends may be twisted onto the inner contact pins facing the coil receiver to a limited extent only, i.e. without an additional effort, as the wire guide must be pivoted for twisting onto the inner contact pins, for which the contact pins must be sufficiently long. Furthermore, the wire cutting devices located stationarily in the cutting area may frequently interfere with the winding process.
As the wire guide cannot be arranged perpendicularly with respect to the contact pins, satisfactory parallel twisting as required for printed circuits is not possible. In the case of coils of this type, which are intended to be inserted in printed circuits, separate plug-in pins must therefore be provided.
It is the object of the present invention to provide a coiler machine layout making it possible to twist wire ends onto contact pins located axially with respect to the coil axis satisfactorily, preferably in layers and without interference, and to cut them so that the contact pins may be used simultaneously as plug-in pins in printed circuits.
The advantage of the invention consists, in particular, in having the wire ends of electric coils twisted parallel onto the contact pins located on both flange sides of the coil form axially with respect to the coil axis, so that the contact pins may be used as plug-in contacts in printed circuits, following soldering by a process known in itself.
A further advantage is that the wire guides are conducted perpendicularly to the coil axis both for the winding of the coil form itself and for the twisting of the wire ends, thereby simplifying the control of the wire guides. The wire cutting devices which may be moved in and out of the winding area both vertically and horizontally, provide a better utilization of the available space and thus an operation without interference.
These objects and advantages will become more apparent from an example of the preferred embodiment.
In the drawings:
FIG. 1 shows a schematic layout of a multiple coiler machine with coil forms set in coil holders;
FIGS. 2, 2a, 2b, 2c and 2d are partially sectioned lateral elevations of a coiler tool according to FIG. 1 in different working position; and
FIG. 3 is a schematic side elevational view of a mechanism for shifting the wire guide.
FIG. 1 shows an automatic multiple coiler 1 known in itself, laid out for example with four coiler tools 10 on each longitudinal side, wherein in a support 2 the coiler tools 10 are arranged facing each other so that always one coiler tool 10 is located on another feeder side A and the coiler tool 10 is located 180.degree. opposite on the production side B. By means of a pivot drive 4 known in itself, the coiler tools 10 are pivoted in the support 2 around the axis X from the feeder side A to the production side B. The drive for the coiler tools 10 may be provided for example by a dc motor (not shown).
Each coiler tool 10 has a coil holder 12 in the form of a shackle and provided with a swivel shaft 8. The individual swivel shafts 8 are designed as driving pins 7 on one end and in the shape of a fork 7' on the other end, so that the driving pins 7 may engage the fork shaped end 7' of the opposite coil holder 12 with clearance. By means of a rotating drive shaft 6, also equipped with a driving pin 7, of a conventional pneumatic three-position rotating drive 5 available from Omni Ray AG, Industriestrasse 31, CH-8305, Dietlikon, Switzerland, the swivel shafts 8 engaging each other may be brought into the corresponding wo
REFERENCES:
patent: 3101180 (1963-08-01), Sadorf
patent: 3314452 (1967-04-01), Cartwright
patent: 3409980 (1968-11-01), Lawless et al.
patent: 4157165 (1979-06-01), Bierman
Brochure, Pneumatic Three-Position Rotating Drive-Type Z 5151 by Omni Ray AG, Industriestrasse 31, CH 8305, Dietlikon, Switzerland.
European Patent Application No. 0,003,647, published Aug. 22, 1979.
Meteor AG
Taylor Billy S.
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