US2456406A - Thread feed arresting device - Google Patents

Description

Dec. M, i948. Y J. T. GORDON ErAL 2,456,406

THREAD FEED ARRESTING DEVICE 2 Sheets-Sheet 2 Filed oct. 1.o. 194s INVENTORS N ORD MO E.S0 DAY M TTORNEY Patented Dec. 14, 1948" THREAD FEED ARRESTINQ DEVICE I J ohn T. Gordon and Raymond E. Solliday, Akron,

Ohio, asslgnors tor Wingfoot Corporation,

Akron, Ohio, a corporation of Delaware Application October 10, 1946, Serial No. 702,526 2' claims. (c1. sv-ss) The present invention relates to an improved forni of thread feed arresting device for use in conventional thread manipulatingapparatus. More particularly, the invention pertains to an automatically operable device which acts whenever one of several moving threads, yarns, or the like or the composite thread bundle formed therefrom is broken or otherwise interrupted to cut simultaneously all of the individual threads being fed through the device.

The thread feed arresting device of the invention is particularly advantageously adapted to be vemployed in the conventional doubler-twister machines which serve to ply together a plurality of individual threads to form a composite thread bundle. In such operations it is essential to stop the thread plying operation in the event that one or more of the individual threads being plied up becomes broken or the supply thereof is other- Wise interrupted so as to prevent the-running of less than the desired number of threads. It is also desirable to stop the operation of such apparatus if the composite thread bundle being ormed should become broken.

Certain 'types of thread feed arresting devices are already available in the industry for accomplishing one or theother of the above-mentioned operations. None of the conventional devices, however, is known to have eiectively combined both operations to insure the successful opera` tion of the thread manipulating apparatus with which. it is associated. f

It is, therefore, an object of the present invention to provide a thread feed arresting device for simultaneously cutting thev several individual threads as they pass through the manipulating apparatus in the event that the supply of one or more of said threads is inadvertently interrupted or the composite thread bundle formed by plying together the several threads becomes broken.

It is a further object of the present invention to provide a highly eicient and economically manfacturable device for arresting thread feeding operations which will have universal application in any of several conventional forms of thread manipulating equipment.

Other objects and advantages of the invention will become apparent as the description of one form of device embodying the principles of the present invention proceeds. In the drawings, Fig. l shows a conventional type of thread manipulating apparatus employing one form of thread feed arresting device embodying 4the teachings of the present invention. Fig. 2 is aside elevation of the thread feed arresting device of the invention at a somewhat larger scale. Figs. 3 and 4 correspond generally to Fig. 2, but illustrate the disposition of the several operating elements of the device in their respective operating positions. Fig. 5 is a plan view of the device of Fig. 2 as seen from the In Fig. 1 of the drawings, the reference numeral l identifies a conventional form oi doublertwister apparatus employed in the manufacture of thread, cord, and the like from a plurality of individual threads or strands. The doublertwister apparatus l embodies, among other things, a frame 2 which carries a spindle support 8 thereon. The spindle support 3 is provided with a plurality of spindles [l and guide bars ll which are arranged in substantially vertical rows and disposed in spaced, mutually parallel relation to each other so as to extend in a substantihly horizontal position from the spindle support il.

Each of the spindles d carries a supply spool d; l, t, eachv of which provides an individual strand or thread end t, it, 'il for incorporation into a nished doubled and twisted thread bundle or cord. The threads il, lll, li from each of the several spools t, l, B, respectively, are directed through a guide i2, one of which is provided for each series of supply spools and mounted upon the longitudinally extending base portion of the spindle support El on the frame 2 of the machine. The several threads 9, ill, and ii are drawn together in mutually parallel relation by the guide l2 in which form they are thereafter subjected to any one of several different processing treatments and finally twisted into a :finished compositev thread bundle or cord.

In accordance with conventional procedure in `the manufacture of a composite thread bundle or cord, the bundle is passed over a freely rotatably mounted roller i3 which is supported by a longitudinally extending shaft it in such a way as to enable it to dip into a tank l5 of suitable processing liquor. It will be readily understood that the processing liquor employed in the tank l5 may take the form of certain adhesive materials or lubricating liquids which facilitate the twisting together of the individual threads 9, Ill, and H into a finished-composite thread bundle and ,insure that the projecting bers in the individual threads will be held in place in the bundle.

. In the illustrated form of doubler-twister apparatus l shown in Fig. 1, the individual threads 9, It, and il, after being subjected to processing treatment on the roller I3, pass through the thread feed arresting device i6, under the driven 3 rolls I1 and Il, over the weighted roller Il. and through the pigtail guide 25 to a collecting means 2i with the aid of which the composite thread bundle is collected in the form of a precision-wound package upon a spool 22. The collecting means indicated generally by the refer ence character 2i embodies a rotatably mounted pulley 23 on -which the spool 22 is mounted for rotation. The pulley 23 is supported by a stationary rail member 24 and driven by a belt 25. The composite thread bundle is built up in the form of a precision-wound package by means oi a ring twister mechanism embodying a ring 28 y mounted upon a ring rail 21 which is reclprocated in a direction axially of the spool 22. The ring 26 carries a traveler 28 through which the composite thread bundle is directed to the spool 22 in the laying up of the thread package 29.

The thread feed arresting device i6 of the present invention has a frame member which is provided with a mounting flange 3| facilitating its disposition in the doubler-twister apparatus l in proper operating relation with respect to the driven feed rolls I1 and I8. A series of guide eyes 32, 33, and 34 are formed on weighted lever arms 35, 36, and 31, respectively, for the yreception of the individual threads 9, I0, and il from the supply spools 6, 1, and 8. The several threads 9, IU, and Il, after passing through the guide eyes 32, 33, and 34, are drawn together in the form of a composite thread bundle 38 by theguide 39 through which they next pass. From the guide 39, the composite thread bundle 38 next passes under the roller guide means or abutment 40 which is freely rotatably mounted upon the headed pin 4I secured to the frame member 38 of the thread feed arresting device i6.

The composite thread bundle 38, after'passing under the abutment 48, is carried upwardly in contact with the driven feed roll I1 (see Fig. 2), around the weighted roller I9, and thereafter in contact with the driven feed roll I8 from which it is directed over the grooved roller guide 42 to the pigtail guide 20 and the collecting means 2| ofthe doubler-twister apparatus i. The grooved roller guide 42 is freely rotatably supported by a swingably mounted arm 43 arranged to pivot about a pivot pin 44 secured to the frame member 30 of the thread feed arresting device I6. The arm 43, as will be seen from Fig. 4, is normally biased'toward the uppermost position of its pivotal movement about the pivot pin 44 by means of thetension spring 45-, one end of which is affixed to the arm 43 adjacent its pivoted mounting, while the other end is secured to the frame member 30. The running composite thread bundle 38, when it is passed over the grooved roller guide 42, tends to bias the arm 43 into its lowermost position as illustrated in Fig. 2 of the drawings against the action of the spring 45.

A slide bar or rod 46 is mounted on the face of the frame member 30 of the thread feed arresting device I6 so as to be slidable in a horizontal position in the mounting means 41 and 48. The rod 46 is normally urged toward the right as seen in Figs. 2 and 3 of the drawings by means of a compression spring 49 disposed between the face of the mounting means 41 and the collar 50 secured to the rod 46. The rod 46 is provided with a squared end portion I which registers with a notched portion 52 of an insert 53 provided at the'pivotally mounted end portion of the arm 43 when the composite thread bundle 38 is running over the grooved roller guide 42, and the several individual threads 9, I0, and II are properly passing through the doubler-twister apparatus to the collecting device 2|.

On the right hand end of the rod 46 and adjacent the mounting means 43 is mounted a trip means or sleeve 54 which is provided with limited movement in a direction axially of the rod 48 by means of the slotted hole 55 with which the pin 55 inserted in the rod 48 registers. .The sleeve 54 is so disposed with respect to the weighted lever arms 35, 36, and 31 that the projecting portions 51 thereon will contact the sleeve and cause it to move axially of the rod 46 when one or more of said lever arms swing downwardly about their pivotal mounting upon the frame member 30 of the thread feed arresting device I6.

A suitable severing means or knife 58 is secured to a counterweight member 59 which is rotatably mounted about a pivot pin 68 secured to the frame member 30 in such a way as to enable the knife to contact the abutment 40 when the counterweight is in the lowermost position of its arcuate path about the pivot pin 69. In the normal operation of the doubier-twister apparatus I, the knife 68 is held out of contact with the abutment 40 as by means of a holding means or pawli6 I which engages a notch 62 in the counterweight 59. The pawl 6I is pivotally mounted about a post 63 secured to the frame member 30 and has a small weight 64 secured thereto for insuring the engagement of said pawl with the notch 62 in the counterweight the device is being threaded up.

The threading up of the thread feed arresting device i8 is facilitated by the provision of a locking means 65 which takes the form of a lever arm mounted for pivotal movement about a. pivot pin 68 secured to the frame member 30.01' the device. A pin 61 in the counterweight 59 extends out wardly at right angles to the face of the frame member 30 for contact with the free end portion of the locking means 65. The movement of the locking means 65 is restricted by the limit pins 69 secured to the face of the frame member 30 above and below the locking means and a hole 69 drilled in the locking means is adapted to register with the conically shaped pin 'i8 to enable the locking means to be held against the 1owermost limited pin 68 during the threading up operations against the action of the tension spring It will be readily understood that the conventional double-twister apparatus comprises a series of individual operating stations arranged axially along the machine in spaced, generally parallel relation. Each of these stations comprises a plurality of supply spools 6, 1, and 3, the dip roll I3, thread feed arresting device I6, weighted roll I9, and thread collecting device 2i, while the driven feed rolls I1 and I8 extend longitudinally of the apparatus and serve to draw the individual threads 9, l0, and I I from their respective supply spools 6, 1, and 9, to form the same into the composite thread bundle 38 for collection in the form of a precision-wound thread package 29 on the collecting device 2 I.

As will be noted from Figs. 2 and 5, the ends of the individual threads 9, I0, and II are threaded through the eyes 32, 33, and 34, respectively, on the weighted lever arms 35, 36, and 31. In the threading up operation, the locking means 65 is disposed in contact with the lowermost limit pin 68 by registration of the hole 69 with the pin 10, thereby temporarily holding the counterweight 59 in the uppermost position of its arc with respect to its pivot pin 60 by reason of the contact 59 when .stations on the double-twister apparatus.

of the free end of the locking means with the weighted roll I9, and finally under the feed roll I8.

jThe composite bundle 88 formed of the individual threads 9, I0, and AI I, after passing under the feed roll I8, is then directed over the grooved roller 42, causing the same to swing downwardly against the action ofthe spring t5 and permitting the squared end portion 5I of the rod 46 to register with the notch 52 in the insertI 53. After the end of the composite thread bundle 38 has been fastened to the collecting spool 22 of the collecting means ZI, the locking means 65 may be released from its engagement with the pin 13, thereafter bringing all of the operating elements of the thread feed arresting device I8 into the relationship illustrated in Fig. 2 of the drawings.

As will be seen from Fig. 2, the individual Vthreads 9, ID, and I I now support the Weighted lever arms 3B. 36, and 3l' against the weights thereon while the composite thread bundle 38 passing over the grooved roller guide it holds the swingably mounted arm d3 in its lowermost position about the pivot pin 44. In the event that there should be any interruption in the supply of any one of the individual threads 9, I, or

II, the weighted lever arm associated with that individual thread will be depressed by the action of the weight. Such an instance is illustrated in Fig. 3 in which the supply of the individual thread IU is supposedly broken, thereby permitting the lever arm 38 to drop downwardly, causing the projecting portion 5l thereon to contact the end of the sleeve 5d adjacent thereto.

The action of thecontact of the projecting portion 3l of the arm 36 with the sleeve dit causes the latter to move in a direction axially of the rod 08 or toward the left as illustrated in Fig. 3

until the-pin 56 registers with the right hand extremity of the slotted hole 55. This movement of the sleeve 54 brings the left hand extremity will run through the apparatus to the collecting spool 22 and, thereafter, that particular station on the double-twister apparatus I will cease to operate unti1-the cause of the interruption in the supply of the individual thread ill has been corrected and the machine again threaded up in the manner previously described. i

The thread feed arresting device It of the present invention, in addition to preventing the singling operation, operates upon the breaking of the composite thread bundle 38 to cut simultaneously all of the individual threads Il. I0, andi I passing therethrough, thus preventing any possibility of the free end of the composite bundle becoming entangled with adjacent positions or It will be understood that if the broken end of the thread bundle 38 were to continue to feed through the apparatus after thebundlev ceases to be collected upon the collecting spool 22, the collecting packages 29 at adjacent stations on the machine could' the pivot pin 44. This action of the arm 43 causes V the squared end portion 5I of the rod 46 to become disengaged from the notch 52 in the insert 63, thereby -causing the rod 46 to be urged toward the left, as shown in Fig. 4 of the drawings, com pressing spring 49. This axial movement of the rod 46 causes the pin 58 to engage the .left hand end of the slotted hole 55 in the sleeve 54, resulting in the contact of that end of the sleeve 54 with the pawl I. The movement of the pawl 6I causes it to become disengaged from the notch 82 in the counterweight 59, permitting the counterweight to swing downwardly and bringing vthe knife 58 into contact with the abutment 40 immediately severing all of the individual threads 9. I8, and II simultaneously. Y

The thread feed arresting device IS of the present invention thus achieves a two-foldpurpose, namely the preventing of the running of fewer than the required number of individual threads to be formed into a composite bundle as well as the discontinuance of operation of the feed rolls upon the breaking of the composite thread bundle. It will be readilyunderstood that certain modifications may be made in the structure of the thread feed arresting device without in any Waydeparting from the spirit or scope of the invention.

While in accordance with the patent statutes one best known `embodiment of the invention has been illustrated and described in detail, it is to be particularly understood that the invention is not limited thereto or thereby, but that the inventive scope is dened in the appended claims.

We claim:

1. Thread feed arresting mechanism for controlling the travel of thread and the like through apparatus embodying the delivery of individual threads from each of a plurality of supply packages to a collecting means on which said threads are collected in the form of a composite thread bundle, said arresting mechanism comprising .an abutment about which the individual 'threads pass; severing means co-acting with the abutment for simultaneously cutting all of the individual threads; means swingably supporting the severing means; means, holding the severing means out of contact with the abutment; trip means for releasing the holding means and causing the severing means to operate; a weighted lever arm supported by eachindividual thread for actuating the trip means upon the interruption of the supply of said thread; a guide means in contact with which the thread bundle passes; biasing means for retracting the guide means which actuates the trip means when the thread bundle is broken; and disengageable locking means for temporarily retaining the several elementsof the mechanism in inoperative relation until the mechanism has been completely threaded up. I

2. A thread feed arresting device for controlling the travel of thread in an apparatus embodying the delivery of individual threads from each of a plurality of supply packages to a collecting means l 7 on which said threads are collected in the form of a lcomposite thread bundle, said device comprising a frame; a plurality of individually weighted thread feed guides pivotally mounted on the frame; a delivery guide also pivotally mounted on the frame; an abutment on the frame against which the threads from the individual feed guides pass in their paths of travel to the delivery guide; a counterweighted cutter pivotally mounted on the frame for engagement with the abutment;.

preventing the unauthorized release of the cutter as the guides are threaded up.

JOHN T. GORDON. RAYMOND E. SOLLIDAY.

REFERENCES CITED The following references are of record in the ille of this patent:

UNITED STATES PATENTS Number Name Date 596,076 Meehan, Dec. 28, 1897 959,263 Reinhardt May 24, 1910 1,211,178 Kozlowski Jan. 2, 1917 15 1,790,818 Jessen Feb. 3, 1931 2.0511547 Collins July 14, 1936

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