SU59465A1 - Apparatus for sewing machine spools - Google Patents

Description

Apparatuses for winding the slits of sewing machines are already known; reeled thread. In order to simplify the mechanism of automatic control of a driving device of spindles of a similar apparatus, the proposed apparatus of the same designation has the distinctive feature that its winding spindle is mounted in a spring loaded in an axially movable sleeve provided with an end wedge plate, upa Such an embodiment of the automaton ensures its simplicity and minimizes the number of links of the automatic control mechanism of the drive device of the apparatus, having the advantage of the latter over the already known ones.

In FIG. 1 shows a front view, partially in section, of an exemplary form of the apparatus according to the image; FIG. 2 - top view of

the apparatus of FIG. one; FIG. 3 is a side view of the apparatus of FIG. one.

The horizontal casing 2 of the apparatus is designed as a chute, covered with a lid 1. The horizontal drive shaft 5 of the apparatus, rotated by a pulley 13, rigidly fixed to the outwardly protruding end of the shaft 5, is fixed along the casing. Several, for example, six friction wheels 7 are fixed, which are intended for coupling with the friction wheels 8 individual spacers 3 of the apparatus, vertically arranged in the openings of the cover 1. Each of the spindles 3 is arranged Can be found in two ball bearings rigidly fixed in a common sleeve 18, fitted with a flange on top. The sleeve 18 is axially movable and tends to rise upward under the action of two BINT springs 10, fixed in cylindrical nests of the cover 1 and supporting the flange of the sleeve 18 from below. The knob of the device 1 and the side of each of the spindles 3 have a plate 4 fixed to it, rigidly attached to roller 9, turnable in both

lid cap 19 1. A roller 16 between the lugs 19 is loosely fitted with a spring 16, one end of which rests on the lug 19 and the other attached to the roller 9, tending to press the plate-slug against the cylindrical surface of the spool, tightly worn on the spindle 3. Each The plate ““ a-shup 4 ”is provided with a transverse process 20 with a longitudinal section designed to be mounted in a swivel-to-turn 12, having four arcuate ribs and for directing and laying the thread on the spool. The cross 12 is not made of steel and is highly hardened to prevent the passage of the neck through the neck. When one of the ribs of the cross is worn, the latter rotates 90 ° and the next edge of it is introduced into the work. To direct the winding thread to the working edge of the cross 12, equipped with an oblique cut for threading the eye 15 at the end of the plate-shupa 4. The sleeve 18 at the end is provided with an emphasis 17, which interacts with the plate-probe 4 and prevents the sleeve 18 from lifting from spring 10 to as long as the platelet 4 "e moves away from the spool due to its rotation about the axis of the roller 9 at a distance corresponding to the full winding of the spool.

An oiler 11, screwed to the side wall of the housing 2, is intended to feed the lubricant inside the sleeves 18. A safety case 14 is attached to the cover of the pulley 13 and attached to the cover 1.

Each of the shpulya to facilitate threading the end of the thread can be provided on its flange with a narrow slit, the edge of which captures the end of the thread fed to the shaper for winding.

The operation of the bobbin winder is involved in the fact that when the plate probe 4 is led to a shank tightly mounted on the spindle 3 pressed down along its axis, the friction wheels 7 grip takes place

and 8 and fixing them in the deflated / m position due to the interaction of the plate-probe 4 with the stop 17 of the sleeve 18.

As the thread is wound on the spool, the plate-probe 4 gradually turns against the action of the spring 16 together with the roller 9 in the tabs 19 of the lid 1, being pressed by the spring 16 to the winding spool.

When a full winding is achieved, the pinhead rotates the plate-probe 4 near the axis of the roller 9 paste only, so that the interaction of the plate-probe 4 with the stop 17 of the sleeve 18 stops, and the sleeve 18 has the ability to rise upwards from the action of the springs 10, and at the same time it moves upward along the axis and the axis 3, the friction wheel 8 which is disengaged from the wheel 7 of the shaft 5.

Raised up and stopped spindle 3 signals the need to cut the thread, remove the full spool, put on an empty one, thread the end of the thread on it and re-enable the spindle to work.

The subject matter of the invention.

Claims (2)

1.Apparatus for winding the spools of sewing machines using a winding spindle carrying a friction wheel, which is removed from engaging with the drive unit when the spindle moves axially under the action of a spring at the end of the bobbin winding thread, the turns of which act on a rotatable spring-loaded plate-probe preventing axial movement A shpindle prior to filling the shunt, characterized in that the winding spindle 3 is mounted in a spring-loaded axially movable sleeve provided with an end face with an abutment 17 for the probe probe 4. 2. The form of the apparatus according to p. 1, characterized with the use, on the plate-probe 4 rotary crosses 12 with arcuate ribs stacking threads of the thread. in f f in 11 - -,, pZ L ЗМ Ц1% С