US2449788A - Winder - Google Patents

Description

Sept. 21, 1948. a. A. PETERSON WINDER Filed Feb. 7. 1945 3 Sheets-Sheet 1 A TTORNE Y5 n 0 R s m r U N e w n v mP M A M M w B v BM 3 I! s r a 1 11. in. u a

B. A. PETERSON WINDER Sept. 21, 1948.

3 Sheets-Sheet 2 Filed Feb. 7, 1945 Bart A. Peterson B ,{Q f- MJ- 4 4 ATTORNEYS B. A. PETERSON WINDER.

3 Sheets-Sheet 3 Filed Feb. 7, 1945 a A y I 3 o A 8 3 72 3 w .lk Z 2. 2 :n i 4 v I. .4 6 o o o 0 0 o O 0 0 0 .1. G M

INVENTOR.

Pet er'son Burt A.

A TTORIVE Y5 Patenieci Sept. 21, 194

WINDER hurt A, l'e e so hoel 1.1.1. a s snor to Barher-Co man Compan Rock-0111a 1 n tation of Illinois,

Applicatipn February 7, 1945, Serial No. 576,546

claims. (01. 24.21355) The invention pertains to automatic yarn winds ing machines of the type commonly known as spoolers and exemplified in Colman Patent No. 1,267,977 issued May 28, 19 18. In such winders a mechanism known as a winder tending mechanism is arranged to travel into association successively with a series of units for windingyarn from bobbins onto cheeses. In the operation of the machine, when the yarn supply from a given bobbin is interrupted through exhaustion or breakage, or when the yarn mass attains a predetermined diameter, the cheeses are shifted automatically from a running position to a thrown-out position. One of the functionsot the winder tending mechanism is to restore -torum ning position the cheeses that have been thrown out due to exhaustion or breakage of the yarn, and the present invention relates to an improved means for accomplishing this result.

Heretofore the restoration of the cheeses from thrown-out to running position has been accomplished by means of a device known as a plow mounted upon the tending mechanism and operative in the travel of such mechanism past the winding units. In this operation, the plow engages each cheese arm at a point relatively close to the pivot, and with a cam action swings the arm upwardly over center to its runningpositiona The primary object of the present mvention is to provide a lifting device of a character such as to avoid the wear incident to the .camming action of the plow upon the cheese arms. a

Anotherobject is to provide a lifting device driven in timed relation tothe travel-of the mechanism and activein an upward direction to lift the cheeses bodily for movement 'from the thrown-out position into their running positions.

Still another object is to provide a cheese lift.- ing device of the character last above referred to in which the actuating means is operative through a stroke which is short as compared to the range of movement through which the .cheese passes.

A further object is to provide for the perform.- ance of the lifting function in two steps by'successively operating liitingmembers soarranged that while one of the members is acting to impart the final thrust .to a cheese lacing operated upon, th ther member i bein restored to retracted position for n a ment with the cheese of the next winding unit as the tending mocha, nism advances along the winder. i

The objects of the invention thus generally stated, together with other and ancillary seam tages, :are attained by the construction and ar- 2. rangement shown by way of illustration in the accompanying drawings wherein:

Figure l is a fragmentary end elevational view of a winder tending mechanism equipped with the improved cheese lifting or positioning means,

parts being broken away and shown in section to show details of construction.

Fig. 2 is a fragmentary end elevational view of a cheese and its pivotal support illustrating the operation of the improved lifting or positioning device.

Fig, 3 is a fragmentary plan view of a portion of the winder and its associated traveling mechanism, the latter being shown partially in section to illustrate details of construction.

Fig. 4 is a face view of t; e liftingdevice and illustrating details of its construction and mounting.

Referring now to Figs. 1 and -3 of the drawings, the winder tending mechanism comprises generally a carriage l arranged to travel upon a main supporting frame 8 for successive associattion with a series of winding vunits, the main frame having a rack 9 with which meshes a drive gear H] of the traveling mechanism. Eaghof the winding units comprises a support fora cross wound yarn mass or cheese (2 produced icy the wi di g 9f ram ,1! m ue e si b ns 2 the h es be sz o ma y sup rte o a o atin drum H provided with a traversing groove 12 (Fig. 3). The cheeses ye are suita1 ylpp orted p n o s m nted u n th end -of arm 1 rivotally u o t d at 1 u n h mai Ha ie- Th-us h e esesar swi eab r m the r norma sitio n runn ng contact w th th d um l nto their hro n-out p s t on in which latter positions he W n er tendi g me ha i m bone t e to rform t seyera funct n i din hat o estorin the ch ese t thei r nning o t ons ol owin th in p r ser thr ad n oexhausted h e ds .Ihe means nr v dedpu t the bje ts .o he i ven io hereinbeiqre set forth f r lEQS Q ing the cheeses to their running positions, corn.- rns s i gen ral pow r d i e limin m ns orative with respect to the thrown-out cheeses uccessive the advanc o th de t s mechanism, w eby o i a t a ans e s i t n fo ce to ea ch s th ou a ang -o uch amnl tudeas osw ne th cheese s rnames arm over ce ter and thus pos tion th cheese fii nning ontact with t su r ng a l in drum. And for the purpose of ng the speed with which the ,l-iiiin id i ss machined to (be actuated in ordert oar-at iner-s imesive cheeses without reducing the rate of travel of the tending mechanism, the lifting function is preferably accomplished in two successive steps by successively operating members so timed that during the final portion of the lifting operation performed by one member the other member is being retracted into position for engagement with the next succeeding cheese.

In the present exemplary embodiment of the invention, the improved cheese lifting and positioning means comprises two lifting members l5 and It pivotally mounted on the carriage 'l and arranged for operation in timed relation to each other and to the travel of the carriage. The actuating means for the two members comprise two crank disks I? and I8, the latter being provided on its periphery with teeth I8 to form a spur gear for driving purposes.

The members I5 and I5 preferably engage directly with the cheeses themselves and are therefore in the form of curved polished plates. latter are mounted upon arms I9 and 29 pivotally supported in spaced parallel relation on a shaft 2| and respectively having rigid therewith,

crank arms 22 and 23. The arms I9, .22, and 29, 23 constitute two bell cranks respectively connected by links 24 and 25 with studs 26 and 21 on the disks I1 and I8. The disks are fast upon a shaft 28 suitably supported in the carriage i, and the studs are so positioned relative to each other as to cause the members l5 and I6 to operate successively. The two members are spaced apart in the direction of travel of the carriage and so timed that while the member I6 approaches its vertical position (Figs. 1 and 2) whereby to shift the cheese over center, the other member I5 has completed its portion of the lifting function and started to move reversely into position beneath the succeeding cheese (see Fig. 1). As shown in Figs. 3 and 4, the arms I5 and I6 are offset in the direction of travel of. the carriage. arm I5 to occupy a position in advance of its actuating disk I! and link 24 so as to clear the.

latter in the fully retracted position of the arm (see Fig. 2)

It will be understood that the shaft 28 carrying the disks IT and I8 is driven in timed relation with the travel of the carriage. For this purpose the spur gear constituting the disk I8 is driven through gears 29 and 30 (Fig. 3) the latter fast on a shaft 3| parallel with the shaft 28 and suitably journaled in the carriage. For driving the shaft 3i a shaft 32 extends vertically through a frame member 33 of the carriage, being conheated at its lower end with the shaft 3| by bevel gearing 34. At its upper end the shaft 32 is connected by bevel gearing 35 with a drive shaft 36 carrying a pulley 31 which is driven by a belt 38 running to a drive motor (not shown) mounted on the carriage. The vertical shaft 32 has a pinion 39 fast thereon andmeshing with the drive gear II] which coacts with the rack 9 in advancing the carriage relative to the several winding units.

Upon movement of the cheese over center through the operation of the lifting device, its supporting arm I3 moves into engagement with a stop member 49 (Fig. 3). The latter preferably has a cam surface 49 shaped to control the descent of the yarn mass into its position on the winding drum as an incident to the advance of the carriage, all in the manner set forth in said Colman Patent No. 1,27 6,977.

While the improved cheese lifting and positioning device performs the function of the cam The.

This is to permit the and therefore need not be described in detail.

the drum I I. At this time the first lifting memor plow heretofore employed, it is contemplated that as a safety measure such plow may advantageously be employed together with the improved lifting device. The plow is preferably of the type shown in said Colman patent and comprises a cam member 4| (Fig. 3) having a sloping surface 4I inclined upwardly and rearwardly with respect to the direction of travel of the carriage. It i adapted to engage with the cheese arms when the latter project outwardly from their pivotal supports Id (Fig. l), and is so proportioned as to cause the arms to swing upwardly somewhatbeyond dead center as an incident to the movement of the carriage. In the event of failure on the part of the operator to place a cheese core upon any of the supporting arms I3 and thus render the members I5 and I6 of the lifting device ineffective, the plow 4I will engage with such arm and shift the same out of the path of the lifting device and thereby avoid damage to the machine due to movement of the members I5 and it of the lifting device into engagementwith the arm. It will be understood that the lifting member I5 is timed to oper-.

lever arm I3 by the plow. Thus the lifting oper ation is performed by the devices I5, I6, except in cases Where the operator has inadvertently failed to place a cheese or core upon the arm I3.

It will be understood that as in the case of said Colman patent, the cheeses are shifted from their running positions in contact with the driving drum or drums I I into their thrown-out positions 51 automatically during the operation of the machine in response to thread failure due to exhaustion or breakage or upon the attainment of the-cheese to a predetermined size. The means employed to perform such throwing out function may be the same as that disclosed in said patent In brief it comprises a, sensitive feeler 42 responsive to the presence or absence of the strand y passing from the bobbin 1) through a yarn clearing device 43 and thence over the drum I I to the cheese. Upon interruption of the strand, the feeler 42 permits movement of a bail '44 into the path of movement of a pawl 45. The bail is connected to the cheese arm I3 at a point eccentrically with respect to the shaft I4 thereof, and

in the downward movement of the actuator the.

arm is swung upwardly, forwardly and thence downwardly, its downward movement being limitedby suitable interengaging stops (not shown) Summarizing the operation, it may be assumed that the parts occupy the relation shown in Fig.

1, with thefirst lifting member I5 about to move into position beneath a thrown out cheese 0',

the immediately preceding cheese 0 having been restored to its running position in contact with her I5 occupie its retracted position so as to be free to move beneath the cheese 0 and the second lifting member I9 occupies a vertical position partially retracted from its extreme forward position (Fig. 2). As the carriage advances, member I5 is swung upwardly into engagement with the cheese c while the member I6 swingsdown wardly to its extreme retracted position(F-ig. 2)

rangement is such that the lifting operation is performed in two steps. Were it not forthis,the speed of operation required of a single lifting member would be doubled. Thus, .bythe construotion and arrangement employedthe cheeses are lifted rapidly and without necessitating any slowing up in the advance of the carriage.

It will also be seen that the objectionable wean ing of the plow heretofore experiencedis eliminated. At the same time the power required to perform the lifting operation is reduced; one of the factors in such economy of power resulting from engagement with the cheese or its support at a point remote from its pivotal supporting axis it rather than adjacent thereto as inthc prior construction. Finally, engagement of the cheeses directly by the members it and it is ad vantageous in that it serves tohold-the cheeses a ainst rotation during the lifting operation.

I. claim as my invention: 1

l.' A Winder having,inycombination, a drum, a plurality of winding units each comprising a pivot l che se support, and a traveling mechan-ism having means operative to swing the cheeses of successive units from thrown-out position into running position relative to drum including a lifting device and an actuator therefor, said device being movable by said actuator directly into engagement with each of the cheeses in their thrown-out positions to lift the same upwardly and rearwardly toward their running position.

2. A winder comprising, in combination, a series of winding units each including a pivotal support for a cheese, a drum en ageable by the cheese during the winding operation, means for shifting the cheeses away from said drum and into a thrown-out position relative thereto, and a winder tending mechanism having means for restoring the cheeses to position relative to the drum operative as an incident to the travel of said mechanism past said winding units successively, said restoring means comprising a lifting device reciprocable in the advance of the traveling mechanism into engagement with the thrown out cheeses and thence upwardly and rearwardly to carry such cheeses into engagement with said drum.

3. A winder comprising, in combination, a series of windin units each including a support for a cheese, a drum engageable by the cheese during the winding operation, means for shifting the cheeses away from said drum and into a.

thrown-out position relative thereto, and a winder tending mechanism arranged to travel into association with said winding units successively and having a cheese lifting device movable in a direction transversely of the path of travel of said mechanism, and means operating in timed relation to the travel of the mechanism for actuating said device.

4. A winder comprising, in combination, a series of winding units each including a support for a cheese, a drum engageable by the cheese during the winding operation, means for shifting the cheeses away from said drum and into a thrown-out position relative thereto, and a winder tending mechanism arranged to travel into association with said winding units successively and having cheese restoring means comprising a constantly driven shaft, lifting means movable transversely of the path of move- .ment of said mechanism, means connected with said shaft for actuating said lifting means, and means for driving said shaft in timed relation to the travel of the mechanism.

5. A winder having, in combination, a series of winding units each including a support for a cheese, a drum engageable by the cheese during mechanism of winding units each said mechanist c, a pair and Cheese lif'bingzmean-s comprising a pair of the:'windingyoperation, means for shiftingwthe cheeses away from said drum and into a thrownout position relative thereto, anda'winder tending mechanismhaving means: for restoring the cheeses to runningposition; relative to the drum the drum into a thrown-out position relative thereto, and awinder tending-mechanism arranged ,to travel into association :with said winding uni-ts successively, said mechanism having a shaft drivenin timed relation tolthe travel ,of of diskson said shaft,

lifting members respectively associated with said disks and'timed to operatesuccessively relative to each cheese. 1 l

7.;A winder havingin combination,- acontinuously driven cheese supportingdrum, a series of winding units, each comprisinga member supporting thecheese for movement from a position in running contact with said drumoutwardly into a thrown-out positionlrelative thereto, a Winder tending mechanism arranged to travel into association with said winding unit,-successive1y, and

-' cheese lifting means on said mechanism comprising a constantly driven shaft, a pair of lifting members spaced apart in the direction of travel of said mechanism, and means on said shaft operatively associated with said lifting members, said members being timed for operation successively with respect to each cheese in the travel of said mechanism, with the leading one of said members moving into retracted position while the following member completes the restoring movement.

8. A winder having, in combination, a continuously driven cheese supporting drum, a series of winding units each including a pivotal support for a cheese whereby the cheese may be swung from a normal position in running contact with the drum into a thrown-out position relative thereto, and a winder tending mechanism arranged to travel into association with said winding units successively, said mechanism having a shaft driven in timed relation to the travel of said mechanism, a pair of disks on said shaft, and cheese lifting means comprising a pair of lifting members operatively associated with the respective disks for operation thereby in timed relation to the travel of the carriage, one of said members occupying a fully retracted position for movement into position with respect to one of the cheeses while the other one of said members is acting upon the preceding cheese to swing it into its normal running position.

9. A winder having, in combination, a continuously driven cheese supporting drum, a series of winding units each comprising a cheese pivotally supported for movement from a running position in contact with said drum outwardly into a thrown-out position relative thereto, a winder tending mechanism arranged to travel into association with said winding units successively, and a cheese lifting device on said mechanism comprising a constantly driven shaft, a pair of crank disks rigid with said shaft, a pair of bell cranks respectively connected with said disks, and a pair of lifting members fixed relative to said two bell cranks respectively and disposed in laterally spaced relation with one of said members extending upwardly beyond the other, said members being relatively timed for engagement with a given thrown out cheese successively in the travel of said mechanism, with the leading one of said members moving into retracted position while the following member completes the restoring movement.

10. A winder having,-in combination, a drum, a plurality of winding units each comprising a cheese support and means operative to swing the cheeses of successive units from thrown-out position into running position relative to said drum including a pair of lifting members and actuating means therefor operative to move said members into operative association with each of said cheeses successively, one of said members acting to impart an initial lifting movement to each of the cheeses and the other member serving to complete such movement while the first member is being retracted to its initial position.

11. A winder having, in combination, a drum, a plurality of winding units each comprising a cheese support, and means operative to carry the cheeses of successive units from thrown-out position into running position relative to said drum, including a traveling mechanism and cheese lifting' means on said mechanism movable transversely of the direction of movement thereof, said means being driven in timed relation to the travel of said mechanism. I

12. A winder having, in combination, a drum, means supporting a yarn mass for movement into and out of engagement with the drum, a traveling mechanism having cam means operable on said yarn mass supporting means to swing the yarn mass from a thrown out position away from the drum into a running position over the drum, and other means including a lifting device actuated in timed relation to the travel of said mechanism and operable directly upon the thrown out REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,175,710 Colman Mar. 14, 1916 1,267,977 Colman May 28, 1918

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