US1146452A

US1146452A - Bobbin-winding machine.

Info

Publication number: US1146452A
Application number: US81301214A
Authority: US
Inventors: Anton Rotter
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-01-19
Filing date: 1914-01-19
Publication date: 1915-07-13
Anticipated expiration: 1932-07-13

Description

A. ROTTER.

BOBBIN WINDING MACHINE.

`APPLICATION FILED JAN. 19. 1914.

Patented July 13, 1915,.

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A. BUTTER.

BOBBIN WINDING MACHINE.

APPLICATION FILED JAN. I9, 1914.

Patented July 13, 1915.

2 SHEETS-SHEET 2.

CDLUMBIA PLANOCIRAPH C0.,WA$HINGTON. D. C,

T FFFGE,

ANTON ROTTER, F RORSCHACI-I, SWITZERLAND.

BOBBIN -WIN DIN G MACHINE.

Specication of Letters Patent.

Patented July 13, 1915.

Application filed January 19, 1914i. Serial No. 813,012.

T0 all lwhom t may concern: i

Be itknown that I, ANTON RoTTnR, a citizen of the Republic of Switzerland, residing at Rorschach, Switzerland, have invented new and useful Improvements in Bobbin-lliinding Machines; and l do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in winding machines for producing bobbins for shuttles of embroidering machines. The invention relates in particular to windingmachines having several bobbin spindles, which work separately one from another and which are provided with a beltdrive.

The invention consists in providing in the drive for each bobbin-spindle a movable pulley and in providing `foil the pulleys of all bobbin-spindles a common driving belt so that each bobbin-spindle may be stopped independently from the others by shifting laterally the corresponding pulley or by bringing the latter out of reach of the driving belt.

It has been proposed to provide in bobbin winding-machines a separate driving belt for single groups of bobbin spindles in or-` der to actuate the spindles of said groups. These arrangements have, however, the drawback, that there has to be provided a separate `driving member for each group and that each single bobbin spindle cannot be disconnected and brought to a standstill independently from the others, butl a whole group has to be thrown out of gear.

` it is assumed, for instance, vthat the threads of only one or two bobbin spindles of the same group are broken, it is evident, that the spindles, whose thread is broken, are rotated idly till the other spindles of this group have the desired thickness, or

the whole group of the bobbin spindles has to be stopped till the broken threads are again tied. This drawback is particularly inconvenient when repairs have to be car-` ried out on the machine and in any case the eiiiciency of the machine is impaired, or in other words, the output of the machine is not as great as could be expect-ed.

In the hitherto known machines the bobbin spindles are brought to standstill by throwing out of gear a clutch serving to actuate said spindles. Owing to the high speed of these machines it is not advisable to use clutches for imparting a movement to the bobbin spindles and for bringing them to a standstill, as they produce shocks which cause breaks or damage weak machine parts, so that the whole machine has Eo be frequently stopped for a long period of ime.

The object of the present invention is to eliminate these disadvantages by providing a construction of the hereinbefore described type.

One convenient mode of carrying the in-l vention into elfect is shown by way of example in the accompanying drawings, in which:

Figure 1 shows a front elevation of the machine, Fig. 2 shows a plan view corresponding to Fig. 1, Fig. 3 shows on an enlarged scale, partly in section, the device for bringing a bobbin spindle to a standstill and `for operating the latter and Figs. 4*? show details of this device on an enlarged scale.

The illustrated machine has a plurality of bobbin spindles l arranged in two rows 'and parallel one to another. These spindles are carried by fixed supports 2 in such a manner that they cannot be displaced. For driving the bobbin-spindles there is provided for each of them a shaft 3,`the shaft 3 of two opposite winding-machines being arranged coaXially, but so, that they are carried independently one from another in bearings el fixed to a common bed plate 5. Each shaft 3 carries a toothed wheel 6 engaging a pinion 7 provided on the corresponding bobbin spindle 1. These shafts 3 actuate in a positive manner the thread guides for the bobbin spindles not illustrated on the accompanying drawings, since they may be of any suitable construction, for instance of the kind described and illustrated in my irevious application Ser. No. 746215, filed February 4, 1913.

To each shaft 3 there is fixed a formed integral with a sleeve 9 mounted on the shaft 3 along a key 3). On one end of the sleeve 9 mounted between the pulley 8 and a collar the loose disk or pulley 11, while on the other end of said sleeve there is provided an annular groove 12. A common driving belt pulley 8, slidably 10 (Fig. there is 13 serves to actuate all the bobbin spindles 1 and shafts 3 respectively. The belt 13 passes over a fast pulley 15 fixed to the main driving shaft 14 and then over the upper part of the pulleys 8 of all the bobbin spindles and finally over a loose pulley 16 on the shaft 14 and arranged between two colla-rs to prevent axial movement. (Figs. 1 and 2).

rlhe belt 13 drives the shafts 3 of both rows of bobbin spindles in the same direction and in order to press the belt against the pulleys 8, to tension said belt and prevent it from shifting in a lateral direction, there are provided between the shafts 3 guiding rollers 17 capable of being moved in a vertical direction relatively to their supports 18. These rollers 17 press from above upon the belt 13, while their flanged edges projecting beyond the circumference of the rollers prevent lateral movement of said belt. (Fig. 2.)

While the intermediate shafts 3 serve to actuate the spindle 1 and the not illustrated thread guides, there are further provided auxiliary shafts for the actuation of the devices controlling the secondary operations, (for instance thebringing and stripping off of the bobbins and the dividing of the latter from each other and the throwing in and out of gear of the bobbin spindles and the thread guides), 2'.. e. for each row of bobbin spindles there is provided a common auxiliary shaft 19. These two auxiliary shafts parallel one to another and arranged at a right angle relatively to the shafts 3 are supported in bearings 2O of the machine plate 5 andthey receive their drive from the main driving shaft 14. For this purpose there is fixed to this shaft 14 a driving pulley 21 connected by means of a belt 22 to a roller 23 mounted upon a shaft 24 parallel to the shafts 3 and rotatably supported in bearings 25 of the machine plate 5. This shaft 24 is further connected by means of a worm gearing 26, 27 to the two auxiliary shafts 19. (Figs. 1 and 2.)

As already stated, the stopping of the shafts 3 and of the bobbin spindles 1 and thread guides is controlled by the auxiliary shafts 19 and for this purpose there are provided the hereinafter described automatically acting means.

The auxiliary shafts 19 carry a fast and a

movable clutch member

28 and 29 respectively. The movable clutch member 29 is connected with the members (cam disks) actuating the devices controlling the auxiliary operations. Of these members there is only shown in Figs. 3-5 and 7 in connection with each bobbin spindle the cam disk 30 serving to bring said spindles to a standstill. A tension spring 31 presses a double armed lever 32 provided with a roller against the circumference of said disk 30. The lever 32 is carried in a fixed support 33 of the plate 5 and it engages with a roller-pin provided on the bifurcated end of one of its arms the annular groove 12 of the sleeve 9 connected to the pulley 8; at its other end it carries a pin 34. (Figs. 5 and 6.) 1n connection with the pulley 8 there is further provided a brake consisting of two segment shaped brake-jaws 37 connected to the support 35 and capable of being moved in a horizontal direction against the action of springs 33. The jaws 37 are arranged on both sides of the shaft 3 and they are beveled on their outer side, Awhich is adjacent to the pulley 8 in order to effect with the correspondingly shaped inner side of this pulley' 8 a quick stopping of the latter. On each support 35 there are also mounted two guide rollers 38 for the belt 13, which prevent in the same manner as the hereinbefore mentioned rollers 17 a lateral displacement of said belt. The throwing into and out of gear of the

clutch members

28, 29 is effected by mechanism of the kind described and illustrated in my previous patent application SerQNo. 7 46215 and therefore not illustrated on the drawings. The means serving for these operations are well known and need not be described.

In order to effect a stopping of the bobbin spindles by hand there is provided for each single spindle 1 a hand lever 39 pivotally connected to a support 40 fixed to the plate 5. The lever' 39 is held in its vertical position, which corresponds to the operative position of the bobbin spindle, by a flat spring 41 (Fig. 4) fixed in the support 40 and provided on its free end with a lug engaging a notch in the side of lever 39. A rod 42 is pivotally connected to the hand lever 39 just above the pivot of the latter and it is also pivotally connected toa slide 43. rlhe latter is guided in the plate 5 and has on its inner end an upward bent part 431 (Fig. 3) lying against a fixed pin 44 when the lever 39 is in its vertical position and being within reach of the pin 34 connected to the lever' 32 (Fig. 5). To the slide 43 there is also fixed an arm 45 carrying on its free end a finger 46, extending toward the disk 30 and loosely supported on the clutch member 28. This finger', which is normally (i. e. when the bobbin spindle is in operation) out of reach of the disk 30, (Fig. 4) is brought within reach of the latter, as soon as the bobbin spindle is stopped by hand by means of the lever 39, the arm 45 with its finger being then displaced by the slide 43, thus preventing in its position an axial displacement of the clutch member 29 and the disk 30, respectively a throwing into gear of the clutch 28, 29. Owing to this arrangement the movably arranged clutch member 29 and the cam disks connected therewith remain in the inoperative position if, owing to repairs to be carried out on the bobbin spindle support,

the latter has to be taken off the plate 5 together' with the parts mounted vthereon and effecting the throwing in and out of gear of the clutch, so that said member 29 and disks will not be rotated `by the shaft 19. In this manner an accidental hurting of the workman loosening the support for the bobbin spindle is prevented.

The `automatic stopping and throwing into gear of each of the bobbin spindles is effected in the following manner: As soon as the bobbin wound upon a spindle has the desired diameter the hereinbefore mentioned and not illustrated feeler lever throws the

coupling

28, 29 into gear, the disk 30 being then also coupled with the continually rotating auxiliary shaft 19. The revolving disk 30 acts with its raised or projecting circumference part upon the lever 32 and moves the latter away from the shaft 19 whereby said lever shifts with its forked end the sleeve 9 and with the latter the corresponding fast pulley 8 and the loose pulley 11 inward relatively tothe driving belt 13 on the shaft `3, z'. e. the fast pulley 8 is brought out of reach and the loose pulley 11 within reach of the continually revolving belt 13, so that this belt passes now over the loose pulley. If the pulley 8 is thus shifted in an axial direction its beveled inner end surrounds the two brake jaws 37 which bring the disk -8 quickly to a standstill owing to the action of t 1e springs 36 tending to move said jaws apart, so that also the shaft 3 and the bobbin spindles 1 as well as the not shown thread guides are stopped. After the wound up bobbin has been bound (the binding of the bobbin being performed before the bobbin spindle is brought entirely to a standstill) and after the bound bobbin has been shifted along the bobbin spindle, f1. e. after the preceding bobbin has been stripped ofil the spindle and the stripper performing this operation has been moved backward, the lever 32 is swung backward, viz. it is moved toward the shaft 19by mea-ns of the disk 30 and the spring 3l shifting thereby the sleeve 9 with the fast pulley 8 and the loose pulley 11 again outward. This eliminates the brake action of the jaws 37 and brings the loose pulley 11 out of reach and the fast pulley 8 within reach of the belt 13, which passes now over this pulley 8, thus actuating again the shaft 3 and with the latter the thread guides and the bobbin spindle 1. The finger 4 6, which was in the position shown in Fig. 4 during the automatic throwing in and out of the shaft 3, does not prevent in this position in any way the throwing in and out of gear of the clutch 28, 29.

If it is desired to bring the bobbin spindle to a standstill by hand, the corresponding hand lever 39 is moved from the vertical position into the horizontal position, the slide 13 being moved outward and acting thereby with its upward bent part 431 upon the pin 34- of the lever 32. This causes the latter to be moved away from the shaft 19, thus bringing the fast pulley 8 out of reach of the belt 13. In order to prevent an accidental upward movement of the hand lever 39 the pivot of the rod 42 on the lever' 39 is situated below the pivot of this lever 39, when the latter is laid down.

The hereinbefore described and illustrated drive permits by means of a single belt the actuation of any number of bobbin windingmachines, while each bobbin spindle forms with the corresponding separate devices a unit by itself capable of being stopped together with the thread guide independently from the other bobbin spindles of the winding-machine, and without it being necessary to provide a clutch.

Vhat I claim is l. In a machine for winding bobbins for shuttles of embroidering machines, a main driving shaft, a plurality of intermediate shafts, a fast pulley and a loose pulley axially movable on each of the latter shafts, a belt .driven from the driving shaft normally in driving connection with the fast pulleys, a bobbin spindle driven by each of said intermediate shafts, and means to independently shift each fast pulley out of the path of said belt, whereby the bobbin spindle connected with the shifted pulley is stopped independently of the other spindle.

2. In a machine for winding bobbins for shuttles of embroidering machines, a main driving shaft, a driving belt operatively connected with said shaft, a plurality of intermediate shafts, a slidable but not rotatable sleeve on each of said intermediate shafts, a fast and a yloose pulley on each of said sleeves, the fast pulleys of the intermediate shafts being driven by said belt, a bobbin spindleoperatively connected to each of said intermediate shafts, and means for shifting each of said sleeves together with the pulleys mounted thereon in the axial direction of its shaft to stop the bobbin spindle driven by said shaft independently from the other spindles.

3. In a machine for winding bobbins for shuttles of embroidering machines, a main driving shaft, a driving belt operatively connected with said shaft, a plurality of intermediate shafts, a slidable but not rotatable sleeve on each of said intermediate shafts, a fast and a loose pulley on each of said sleeves, the fast pulleys of the intermediate shafts being driven by said belt, a bobbin spindle operatively connected to each of said intermediate shafts, a spring actuated lever operatively connected to each of said sleeves, auxiliary shafts driven by said belt, and cam disks on the auxiliary shafts to act-nate said levers on the completion of the winding of a bobbin to shift the sleeve along the shaft driving the spindle carrying the completed bobbin.

fl. In a machine for Winding bobbins for shuttles of embroidering machines, a main driving shaft, a driving belt operatively connected to said shaft, a plurality of inter'- mediate shafts, a fast pulley and a loose pulley axially movable on each of said shafts, the fast pulleys of all said shafts being driven by said driving belt, a bobbin spindle driven by each of said intermediate shafts, means to shift each fast pulley axially of the shaft carrying it and out of reach of the driving belt, so that each bob bin spindle may be put out of action independently from the other spindles, and brake means acting` automatically upon said fast pulley as soon as it is shifted, the action of these means increasing vvith the increasing displacement of the pulley.

5. In a machine for Winding bobbins for shuttles of embroidering machines, a main driving shaft, a driving belt operatively connected to said shaft, a plurality of intermediate shafts, a fast pulley and a loose pulley axially movable on each of said intermediate shafts, the fast pulleys of all said shafts being driven by said driving belt, a bobbin spindle driven by each of said intermediate shafts, means to shift each fast pulley axially of the shaft carrying it and out of reach of the driving belt, bobbin spindle may be put out of action independently from the other spindles, tvvo spring controlled brake jaws for the driving spindle acting upon the inner fixed support for pulley of each side of the pulley, and a each pair of said jaws.

6. In a machine for Winding bobbins for shuttles of embroidering machines, a main driving shaft, a driving belt operatively connected to said shaft, a plurality of intermediate shafts, a fast pulley and a loose pulley axially movable on each of said in- Copes of this patent may be obtained for so that eachk termediate shafts, the fast pulleys being driven by said driving belt, a bobbin spindle driven by each of said intermediate shafts, a hand level;l for each of the bobbin spindles, a slide connected to each hand lever, a pivotally mounted lever for each fast pulley to shift the latter axially on its shaft out of reach of the driving belt, and a projecting pin on each of said pivotally mounted levers arranged Within reach of said slides.

7 In a machine for Winding bobbins for shuttles of embroidering machines, a main driving shaft, a driving belt operatively connected With said shaft, a plurality of intermediate shafts, a sleeve slidable but not rotatable on each of said intermediate shafts, a fast and a loose pulley on each of said sleeves, the fast pulleys being driven by said belt, a bobbin spindle operatively connected to each of said intermediate shafts, an auxiliary shaft driven by the main driv ing shaft, a movable and a fixed clutch member on said auxiliary shaft for each bobbin spindle, a cam disk connected to one of said clutch members of each pair, a pivotally mounted lever operatively connected to each sleeve and acted upon by the cam disks on the coupling of the clutch member connected With a` disk, a projecting pin on each of said pivoted levers, a hand lever for each bobbin spindle, a slide connected to each hand lever adapted to engage said pins, an arm on each slide, and a pivotally mounted finger on each arm, said finger being moved laterally of a cam disk When the corresponding spindle is stopped to prevent a coupling of the clutch member.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of tivo subscribing Witnesses.

. ANTON BUTTER. Witnesses:

' EUGENE NABEL,

RANDALL ATKINsoN.

ve cents each, by addressing the Commissioner of Patents,

Washington, ID. C.