Патент USA US2134018код для вставки
Oct. 25, 1938. E. R. ALDl-:RMAN 2,134,018 DETECTOR FOR STOP MOTION MEOHANISM IN WINDING MACHINES Filed March 25, 1957 4 Sheets-Sheet -l @Q 4)' I lll l _r'l '’l ATTORNEYS Oct. 25, 1938. E. R. ALDERMAN 2,134,018 yDETECTOR FOR STOP MOTION MECHANISM IN WINDING MACHINES Filed Maron 25, 1937 4 sheets-sheet 2 INVENTOR [ggf/ue ¿E 4Min/:14N ATTORNEYS ÜCÍ. 25, 1938. ' E R, ALDERMAN f . ` 2,134,018 DETECTOR FOR STOP MOTION MECHANISM IN‘WINDING MACHINES Filed March 25, 1937 v 4 Sheets-Sheet 3 «il 57 56’ 49 ATTORNEYS @ai 25, 1938. E. R. ALDERMAN ~ 2,134,018 DETECTOR FOR STOP MOTION MECHANISM IN WINDING MACHINES Filed March 25, 1937 5 57 56 O M3 ÍÃ/fs‘z/Mï/o/v _ _1_ 4 Sheets-Sheet 4 55 ¿O * «56 5,4 fÃ/sf/¿Ar/o/v m . I' l ~47 i ` < l â _ 6?" - ` . ., @ô 4@' . I Il: Í i l _ E. 33 INVENTOR ¿bef/Vf E’ «40E/PMA# BY ATTORNEYS ' l 2,134,018 Patented Oct. 25, 1938 UNITED STATES PATENT orties ~ 2,134,018 DETECTOR FOR `STOP MOTION MECHANISM IN WINDING MACHINES Eugene R. Alderman, South Hadley, signor to Foster Machine Company, Mass., a corporation of Massachusetts 1937, serial N0.i133,050 Application March 25, (c1. 24a-3i) 2 - Claims. This invention relates to winding machines, Y looking in the direction of the arrow; and has for its object lmore particularly an im ' , Rg. 5 is a detail View in side elevationof the provement in stop motion mechanism for stop ping the winding spindle when the yarn on the supply bobbin becomes exhausted and before the detector mechanism; , ' Fig. 6 is a top plan view of the same; '_ Fig. 7 is a section along line 1--1 of Fig. 5, looking in the direction of the arrows; Fig. 8 is a View along line 8--8 of Fig. 9, show ing in detail a front view of the tripping latch exhaust `end of yarn has been wound on .the package. ~ Fig. 4 is aview alo-ng section 4%-4 .ofFig 3 ' In order that the stopping shall occur lbefore the exhaust end of yarn has been ,run in through 10 `the several guiding and tension devices onto the arranged for electrical operation; ' j , _ Fig. 9 is a side elevation .of the detector and winding package, the improvement provides for tripping mechanisms arranged for operation a detector mechanism at a point closely adjacent the end of the supply bobbin which will be nor electrically; and ' y , Fig. 10 is a detached detail view of the supply 15 bobbin .spindle and its Spring retainer. mally kept inactive by the tension of the yarn #15 coming off the supply bobb‘in and which will serve . The- winding machine to which the present in- ` to actuate suitable stop mechanism immediately ywhen the last end of `the yarn runs off said sup ply bobbin. By vstopping the winding spindle in -this manner it becomes feasible to arrange a con .20 venient position for tying in a new end of a full bobbin before the exhaust end runs through the guiding Ydevices and thus avoid the trouble .and vention is applied is of theV usualwell known character and comprises a main frame l, swing ing support 2 for Vwinding spindle 3, the 1atterbe« ing driven by surface contact of its package 6 20’ with the usual driving roll 4 of the machine'. YA' brake and throw off armlìextends beneath and slightly spaced from the yarn package 5 being Vwound on the spindle 3 and saidarm 5 is ad 25 A further feature of improvement in conjunc .justably mounted upon an angle member ‘l piv oted on the main frame at 8. A rocking of _said tion with »such means for quickly stopping .the angle member 'i to the dotted line position shown Winding spindle upon exhaust of the supply is an arrangement for having the last end of yarn left in Fig. l will lift the .winding spindle> 3’and its package 6 from’ the driving roll 4 ` and >effect hanging in convenient position for the operator stopping of the same by the brake action of said to tie in the new supply without the necessity arm 5.'> The angle member l is under the stress as heretofore >or" manually rethreading the new of a spring 9 tending at all times to rock it coun end through the several guiding and tension de terclockwise into its stopping position. It is nor vices .and without `the trouble of hunting for the mally held from such rocking action by reason lloss of time of manually threading in the new end. \ , ' . ‘ exhaust end on `the wound package. This ar 35 rangement saves the time and labor of the opera tor and avoids Wastage of yarn. of a forward Ynose portion l0 integral with the , . In the following description the term “bob bin” as used is intended to mean any form of supply such as from a bobbin, cop, quill, etc., and the term “yarn” will be referred to as meaning 40 any fiber used in textiles such as wool, cotton, silk, etc., or any material being Wound, such as Wire, paper, glass, etc. Full advantages of »my new improvement will become more clearly apparent from the follow ing specification, taken in connection with the accompanying drawings, in which Fig. l is a side elevation of a winding machine unit showing the stop motion and yits associated y50 mechanism; . _ Fig. 2 is a similar View in part showing the position of the mechanism when the winding spindle is stopped; y Fig. 3 is a detail view somewhat enlarged show ing in front elevation, the latching member; lower arm of the member fl which is adapted to rest against a cam block il, the latter forming part of a knock olf plate l2- pivoted at` >It on the ` main frame. Theknock off plate l2 carries at its under side a bell crank lever or knock olf dog 40 i4 pivoted at I5 thereon and having its down-r wardly extending arm' I6 adapted to fall into po sition so as to vbe engaged by teeth of the usual constantly rotating kicker shaft , I1.` When the said arm I6 is engaged by the kicker shaft Il the knock off plate is thrown upwardly in the usual manner 'to release the cam block Il from beneath the nose l0 of the angle member? for ’ stopping the winding spindle, and the parts in this knock off position are shown clearly in Fig. 2. 50 The knock cli dog i4 has extending >forwardly thereof a tripping member I8 and is adapted to be held in normal inactive position by a latch i9 as lshown in Fig. 1. The latch I9 is in the form of >a flat »narrow-edged blade ñxed to a latch 55 2 2,134,018 member 20 pivotally mounted as shown in Fig. 3 by bearings 2| and 22 upon a ñxed bearing rod 23 which extends laterally from a bracket 24 ex tending from the main frame. The latch mem ber 20 has a crank arm 25 which is adjustably connected by a rod 26 to the detecting mecha nism hereinafter described. The rocking move ment of the latch member 20 upon its bearing rod 23 is limited by a stop piece 21 adapted to be ad 10 justably fastened by a stud screw 28 to said bear at the upper end of said standard 41 is adjust ably mounted a supporting- bracket 48. At the forward end of said bracket 48 is mounted a bell crank lever 49-50 pivoted at 5I thereon and the arm 50 of said lever is connected by the previously described connecting rod 26 to the crank 25 of the tripping member 20. Referring to Fig. 5, a fork finger bracket 52 is fastened to the support bracket 48 and extend ing from the upper end of said bracket 52 are 10 ing rod 23. The stop piece 21 has spaced bosses fixed two parallel horizontal fork fingers of wire 29 and 30, one at each side of the tripping mem ber 20 as shown in Fig. 4. Extending downward V53 and 54. ‘Pivotally mounted on pivot stud 55 of said bracket 52 is a third horizontally extend ly and forwardly from the main frame I is a 15 bracket 3I which supports at its lower forward end a. supporting rail 32 extending lengthwise of the machine and upon this rail v32 is aflixedly mounted the aforesaid bracket 24 by stud Vscrew 33. It will be understood that winding’machines 20., `of this: character usually comprise several Wind ing units and individual stop mechanisms for the same and that the longitudinally extending rail 32 supports several supply bobbins at inter vals along the same. As shown- in'Fig. 2 a bob 25 bin pin support 34 extends forwardly from the bracket 24 and adjustablyrsupports at its outer end the bobbin pin 35. A base member 36 for seating the bobbin 31 is adjustably fixed in suit able position on said pin 35. As kshown in Fig. 10, 30 a spring retainer 38'is mounted on the bobbin pin ing wire finger 56 located halfway between the aforesaid fixed fingers 53 and 54. The outer ends 15 of the two fixed fingers 53 and 54 are bent in one direction and the outer end of the intermediate finger 56 is bent in the other direction to facili tate the threading of the yarn strand, between said fingers, that is against one side of the two 20 fingers 53 and 54 and against the other side of the finger 56, as will clearly appear in Figs. 5 and 6. A torsional spring 51 is arranged in con nection with the movable ñngers 56 tending to ' swing the same between the two'fixed fingers 53 and 54 in a clockwise direction as shown in dotted lines in Fig. 6. A rear end or tail portion 58 of said movable finger 56 is at the other side of its pivot so as to engage the arm 49 of the bell crank 49-50 previously mentioned, and when 35 for firmly retaining the bobbin thereon. 'I'his said movable finger 56 is permitted tomove to its spring retainer is preferably formed of tubular dotted line positionA as shown in Fig. 6, the bell 'sheet steel with bulbous portions 39 >having slits ' crank lever 49-50 will be operated in the proper 40 therein so as to _compressibly fit within the manner for removing the latch I9 from beneath core of the bobbin and accommodate> itself to the tripping member I8 and thus cause a stop at bobbins having cores of slightly different diam ping of the winding spindle. The inward or eter. I ` clockwise swinging movement of the finger 56 As shown in Fig. 1, yarn y is drawn from the about its pivot 55 is limited to the dotted line supply bobbin upwardlyV through ,detectingV mech 'position of said finger as shown in Fig. 6, and -40 anism and then for a considerable vertical dis the outwardly bent end portions of saidflngers flo »tanceto the linitial yarn guide andtension de v.form .a flaring entrance for threading the yarn vice 42, the latter being carried upon arm 4Il ex between the >fingers as above stated. The limit tending upwardly and forwardly from the main ing stopV for‘the inward movement of finger 56 frame of the machine. The initial guide and is furnished by the lug 29 on stop piece 21 by` tension» device 42 comprises the usual spring -reason of the connective devices shown. pressed roll members and may have any Suitable In the normal running of the winding spindle wire guide, not shown, for keeping the yarn from the' yarn as it is drawn off at high speed from jumping said roll. From the roll 42 the‘yarn y >the supply bobbin 31 balloons out as shown in is led downwardly under and over tension guide Fig. 1 and creates a sufficient tension at each rollers 43 and 44 through the eye145 ofthe usual >side of the detecting device so that the yarn in drop wire detector and then upwardly again to traveling between the three fingers of said de the traversing guide 46 and thence to the Wind tecting device will hold the movable finger 56 ing package 6 upon the winding spindle 3. The in substantial parallelism with the two fixed fin vertical distance between the top of the supply gers 53 and 54V as shown in full lines in Fig. 6. bobbin 31 andv the initial yarn guide and tension .device 42 is intended to be shown in Fig. l as being sufficient to permit a stopping of the yarn by the detector mechanism as hereinafter de scribed, as soon as the last end of yarn leaves 60 the supply bobbin and before it runs over the` initial guide device42. For this purpose the ini tial guide device 42 is arranged at about the height of the ordinary operator’s head whereas the supply bobbin support is about waist high. By this arrangement the exhaust end of yarn will be left hanging from the guide device 42 in convenient position for the operator to tie in the new end of a full bobbin. _ The ldetecting mechanism for determining 70 when the exhaust end of the yarn comes oif'the supply bobbin and thereupon actuates the stop ping mechanism is preferably located as shown in Fig. l just above the upper end of said supply bobbin 31. A vertical standard 41v extends up 75 wardly from the longitudinal support rail 32 and When the exhaust end of yarn comes off the 'ss supply bobbin the Vtension of the yarn below the detecting device ceases and the movable finger 56 is permitted to swing inwardly to its dotted line position shown in Fig. 6 whereby as described the tail end 58 of said movable finger actuates the "co bell crank 49-50 which in turn moves the latch I9 from under the trip member I8 and permits the latter to drop. The tripping movement of the knock off dog I8-I4 causes the knock off plate to be thrown upwardly by the kicker shaft “65 I1 and releases the tilting angle member 1 which by` means of its arm 5 throws up the winding spindle 3 and at the same time applies a brake thereto for stopping it. This stopping will take place before the exhaust'end of the yarn reaches 70 the initial yarn guiding tension device 42 whereby the exhaust end will be hanging in convenient position for the operator to tie in a new end of a full Asupply bobbin which replaces the empty 'bobbin on the bobbin pin 35. By this arrange 2,134,018 ment the necessity of manually rethreading the end of the new bobbin through the several guid ing tension devices is eliminated and the replen ishing operation is clearly facilitated. In some cases it is desirable to operate the latch and tripping member electrically and for this purpose the modification shown in ~Fig. 9 is provided. The main parts of this apparatus are as above described with the exception that the bell crank 49-50 and its connecting rod 26 to the crank rod 25 of the-tripping member are eliminated. As shown in Fig. 9 an electro-mag netic device 6D is mounted on the bracket 24 and has its pole pieces 6l arranged in near but normally spaced relation from an armature mem ber 62 which is adjustably carried upon the arm 25’ of the trip member 20. The energizing cir cuit of the electro-magnetic device 60 is from an electrical source of supply, not shown, through wires 63 connected to each side of the electro magnetic device 60 and to a movable switch mem ber 64 pivoted on an insulated pivot 65 upon the nbracket 48. A fixed switch member 66 is mount ed on said bracket 48 and has a return Wire 61 connected back to the electrical source of supply. The movable switch member 64 has a weighted portion 68 at the other side of its pivot to nor mally hold it in open position with respect to the ñxed Contact 66. The tail end portion 58 of the 30 movable finger 56 bears against one side of the movable contact 64 to move it into circuit closing position with respect to 66 whenever the ñnger 56 is moved into its dotted line position as shown in Fig. 6. The fixed switch member 64 furnishes 35 a limiting stop for the inward swinging of the finger 56. When the energizing circuit for the electro-magnetic device 60 is closed as described the armature 62 will be attracted to move the latch I9 from under the tripping member I8 and, 40 cause the stopping of the winding spindle in the manner previously described. I claim: 1. In a winding machine in combination, a Winding spindle, a supply bobbin and a support 45 therefor, an initial guide device for yarn located vertically at a suflicient distance above said sup ply bobbin to permit the‘yarn running òif said supply bobbin being stopped Within said distance, whereby the end of a new bobbin supply may be tied to the end of the exhausted bobbin supply 50 in the space between said bobbin support and said initial yarn guide device, and detecting mecha 3 nism located above the bobbin on said support, comprising a pair of fixed fingers spaced slightly apart, and a movably mounted finger located be tween said ñxed fingers, said fingers being adapt ed to receive the running yarn Vin bearing relation therebetween, viz, over the fixed ñngers and under the movable finger, means causing the movable linger to press against the yarn bridging the fixed iingers and to move relatively to said fixed fingers when the yarn is absent or suñî ciently slack in tension, a stop motion mecha nism comprising means to stop said Winding spindle including a tripping member and a latch to hold said tripping member against release, an electromagnetic device for moving said latch in release» of said tripping member, an electric cir cuit and switch for said electric magnetic device, and means operable by said movable finger to actuate said switch. ' 2, In a winding machine in combination, a winding spindle, a supply bobbin and a support therefor, an initial guide device for yarn located vertically at a suiiicient distance above said sup ply bobbin to permit the yarn running off said supply bobbin being stopped within said distance, 25 whereby the end of a new bobbin supply may be tied to the end of the exhausted bobbin supply in the space between said bobbin support and said initial yarn guide device, and detecting mechanism located above the bobbin on said sup port and between said bobbin and the initial guide device, said detecting mechanism compris ing a grid guide of spaced fixed fingers and an intermediate movable ñnger adapted to receive the yarn in running relation therebetween, viz, over the ñxed fingers and under the movable ñn ger, said movable ñnger having limited move ment inwardly between said ñxed fingers, said fingers being so formed at their outer portions that when said movable finger is in the inmost position a flaring entrance is provided for thread ing the yarn between said fingers in running relation, means causing the movable finger to press against the yarn bridging the fixed ñngers and to move relatively to said fixed fingers when 45 the yarn is absent or sufficiently slack in tension, a stop motion mechanism comprising means to stop said winding spindle, and means operable tol by said movable ñnger to actuate said stop motion mechanism. EUGENE R. ALDERMAN.