US1975037A

US1975037A - Spooling machine

Info

Publication number: US1975037A
Application number: US620034A
Authority: US
Inventors: Durand Marcel Paul
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-09-18
Filing date: 1932-06-29
Publication date: 1934-09-25
Anticipated expiration: 1951-09-25

Description

$ept. 25, 1 934. M P, DURAND SPOOLING MACHINE Filed June 29, 1932 I Inventor 02474225651 Patented Sept. 25 1934 UNIT-ED.

, sroc'mm MACHINE Marcel Pittman; st." detail; "Entay,

T f cefi" j, f Application June 29, 1932, .Serial No. 620,034 In Germany September 18,1931 1 3 Claims. (01.242-48) In spooling machines or devices with split drums of the known kind the thread is subjected to a very great lateral friction, owing to the thread entering or leaving the drum almost radially. This excessive friction of the thread hinders the usage of this kind of machine for fragile threads.

The present invention consists of a spooling machine with a split drum, an internal cross- 0? bar thread-guide open laterally and placed so that the thread passes under it between its point of entering and its point of leaving the drum,

while following an approximately rectilinear path. This arrangement allows a considerable reduction in the distance between the point of entering and the point of leaving of the thread, while it leaves sensibly in a plane parallel to the axis of the drum, the thread is diverted only over a short distance, and its strain is reduced to such a degree that one may use the device for delicate fibres or combinations of threads.

Moreover, the thread being guided in the slit by the internal cross-bar, its tension may be limited to the minimum necessary for winding,

:this further contributing to reduce the strain in the thread.

Also, the device while not using any member with a reciprocating motion, allows one to effect crossed windings at the highest speed having regard to the resistance of the thread.

The interior cross-bar of the device of the present invention may be placed preferably very near to the inner face of the drum; to do this it is made to bear on the axle of the drum. If

.this axle turns it may be fixed on a sleeve on this axle and be held for instance merely by the tension of the thread (an obviously unreliable means, not recommended), or by gravity, by magnetic force or mechanically. If the axle of the drum is fixed, the cross-bar may be firmly fixed thereto, but in this case the two portions of the revolving drum would have to be kept in exact synchronism.

The drum of the invention has in addition a lateral slit opening at the side and allowing the 45 thread to be passed easily under the cross-bar in such a way that the end of the thread does not leave the hand of the operator.

The adjoined drawing shows, by way of example, some practical arrangements of the device. Fig. 1 shows a section of part of the drum and the path of the thread, Fig. 2 shows in perspective a device for allowing the thread to be passed under the cross-bar without the end 5 .1 leaving the hand, and Figs. 3 to 6 show in longitudinal sections through ab--c of Fig. 1 different ways for holding the interior cross-bar.

In these figures, the same numbers indicate the same parts; 1-1' are the two parts of the split drum; 2 is the inside cross-bar, 3 the thread, 4-4 the wound bobbin, 5 the slit in the drum; 6 the slit for introducing the thread, and '7 the lateral hole appertaining to this slit. The thread to be wound enters the slit 5 at 11, passes under the bar 2 and leaves at e a point which, as can be seen in Fig. 1, is very near to the point of rolling up, ff', on the bobbin 4-4. In order to pass the thread 3 under the cross-bar 2, the operator brings the slit 6 in front of the cross-bar Fig. 2, passes the thread into the slit 6 and the hole 7, then slightly turning the drum in the direction g so as to lead the slit 6 behind the cross-bar as shown in broken lines; at this moment, it is only necessary to raise the thread while causing it to pass by the slit 6, and it is found to have passed under the cross-bar without the end having left the hand for a moment. In Figs. 3 and 4 the two portions 11' of the revolving drum are fixed on the axle 8 on which is loosely mounted the sleeve 9 carrying the bar 2.

As explained above, this cross-bar may be held in place by the tension of the thread but this is not recommended. It is preferable to hold the crossbar by means of a counterweight 10 (shown in Fig. 3) or by a magnetic bar 11 held by the flux of a magnet 12, Fig. 4; or again (Fig. 5) by a gear 13 meshing with a pinion 14 in sun and planet fashion, said pinion 14 being connected to a like pinion 14 meshing in its turn with the external gear 13 rigid with the fixed part. In Fig. 6, the axle 8 is fixed and the sleeve 9 is fixed on it as are also the

collets

15 and 15. Between these three members the parts 1-1 of the split drum turn freely on the axle 8, so they do not touch at any time during their rotation, this being assured or regulated by an auxiliary axle 16 of which the two pinions 1717 mesh with the toothed crown wheels 18-18 fixed respectively to 1 and 1. The bearing 19 is situated two cylindrical members spaced apart by a continuous oblique main slit and an internal guide bar free at one end, under which the thread passes between the points of entering and leaving the drum, said drum having a laterally extending supplemental slit communicating with the main slit and the drum having an opening in one end communicating with the supplemental slit, and formed and adapted to allow of the passage of the thread into and out of the drum and under the guide bar, while fed by the hands of the operator.

2. A bobbin winder comprising a split drum composed of two rotary cylindrical members spaced apart by a continuous oblique main slit, and an interior fixed guide bar, substantially flattened, and located ahead of the bobbin and at a minimum distance from the inner surface of the drum, the points of thread entry to the drum and exit therefrom being located in a plane substantially in alignment with the inner surface of the guide bar, and tangential to the under surface of the bobbin, whereby the thread is fed through the inlet and the outlet passage to the bobbin in a substantially straight line, to the undermost surface of the bobbin.

3. A split drum for bobbin Winders comprising two rotary cylindrical members spaced apart by a continuous oblique main slit, and an internal flattened guide bar placed in front of the bobbin and lying close to the inner surface of the drum so that the thread passing under said bar may be retained in the main slit without entering deeply into the drum; the points of the thread entry and departure from the drum being on a line substantially tangential to the undermost surface of the bobbin.

MARCEL PAUL DURAND.