SU140908A1 - Machine for winding small toroidal coils - Google Patents

Description

Machines are known for winding toroidal coils, having an annular needle with an opening for an electric guide passing through the terminal B;: - a single core, as well as a system of driving, pressing and setting pulleys and a drive for the needle.

The proposed machine differs from the known similar machines in that, in order to wind a wire onto a core with a hole diameter of 1.5 mm and more, the reel with the winding wire is installed separately from the needle, the hole in the latter is made in the form of a transverse through eyelet through which it passes wire unwound from the spool. In addition, around the circumference, inside the needle contour, there is a system of rollers serving to guide the wire.

The proposed invention is recommended for introduction into industry.

FIG. 1 shows the location of the needle, the rollers and the roller; in fig. 2 - LL section - in FIG. one; in fig. 3 is a section through BB — in FIG. one; in fig. 4 — needle needle dressing: in FIG. 5, 6 and 7 coil winding,

The wire is wound onto the core by means of a circumferentially rotating annular needle / with a hole 2 for the wire drawn through the opening of the core 3. The drive rollers 4. circumferentially move the annular needle.

The axis of the drive rollers 4 is firmly fitted with the brush-side 5, which causes rotation of these rollers and receives rotation from the electric motor through the gear wheel 6. The driving rollers on their rims have a needle guide groove, in addition, the needle is pressed against the drive rollers by the pressure rollers rollers 7, each of which is located opposite each drive roller from the outer stand of the needle, besides, to prevent the needle from jumping off the drive rollers, a guide ring 8 with a groove 9 is placed on its outer side. and the rollers and the guide ring there is a gap mensche needle diameter.

The needle, moving along the drive rollers, is guided by the groove of the guide ring along the rollers, without jumping off. The pinch rollers, pressing the needle to the drive rollers by means of the spring W, rotate freely, so there is no noticeable friction between the needle and the rollers. At the same time, the friction increases between the needle and the drive rollers, and the needle not only slips, but also is centered in the groove of the drive roller.

The coiled wire is laid on easily rotating scroll rollers / A located on the axles of the drive rollers. The bobbin rollers P have grooves around the circumference so that the windable wire 12 does not jump off the rollers.

When winding small toroidal coils, when the wire consumption is small, the wire can be laid on the push-pull rollers II simultaneously with the winding of the coils.

When winding large toroidal rollers, when a large amount of wire is required, the latter is pre-wound with a needle.

The wire bundle formed during winding on the core rotates easily on bobbin rollers, and so that the wire bundle enters the core hole with the needle, without touching its walls, guide rollers 13 are placed against the core winding point to guide the wire to the needle. So that the wire does not jump off the / 5 rollers, the latter are embedded in the wall of the J4 and the cover / 5.

When the wire is wound on the core, the latter is placed on the workplace at the moment when the needle dissection is between the directions, with the rollers J3 (Fig. 1) and fixed to the turning mechanism (the direction of rotation is shown by the arrow). To thread the wire, the needle is rotated down to a position where the needle hole becomes between the core and the upper guide roller (Fig. 4). The end of the wire from the coil J6 is threaded into the hole 2 (Fig. 4) and fixed to the core 5. When turning the needle (direction indicated by the arrow), the wire section from the core to the hole 2 of the needle winds onto the core, and the wire section from the hole 2 of the needle to the coil 16 is wound onto bobbin rollers (Fig. 5). A further winding process is shown in FIG. 6 and 7.

When the wires are wound on the bobbin rollers for as long as necessary for winding onto the core, the wire is cut with scissors 17 (Fig. 7) and further winding of the core coil occurs at the cut end of the wire.

To stretch the wire in areas of weakening (shown by the dotted lines in FIGS. 6 and 7), rubber pads 18 are placed one on the wall 14, the other on the cover 15 opposite each other between the rollers, forming a gap closed by rubber.

The section of the prod from the needle hole 2 to the bundle of water being wound around the product is clamped with rubber gaskets and tensioned, and this tension is maintained by the wire consumption.

Subject invention

A machine for winding compact toroidal coils, containing a rotating annular needle with an opening for pulling the wire through the toroidal core, leading, pressing and guiding rollers, extending the coil and driving to rotate the leading rollers, which have a tee of 1 to