US1661817A - Winder - Google Patents

Description

March 6, 1928.

H. D. COLMAN WINDER 3 Sheets-Sheet 1 Original Filed Sept. 15, 1919 lnuenmt' HOWARD D. COLMAN 4 id zmzzfi March 6, 1928.

H. D. COLMAN WINDER Original Filed Sept. 15, 1919 s Sheets-Sheet Z Flq- 3 DIRECTION 0 TRAVEL PLAN VIEW Inventor HOWARD D. COLMAN 6'05 gf zf Atw.

March 6, 1928.

H. D. COLMAN WINDER Original Filed Sept. 15, 1919 3 Sheets-Sheet 3 Inventor HOWARD D. COLMAN l m .TL a all I ml MN? l m Fig. 5 FFIONT ELEVATION Z0z 7rz653c5 Patented Mar. 6, 1928.

UNITED STATES PATENT OFFICE.

HOWARD I). COL'MAN, OF ROCKFORD, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T EDGAR S. NETHERCUT, OF EVANSTON, ILLINOIS.

WINDER.

Application filed September 15, 1919, Serial No. 323,839. Renewed June 18, 1828.

This invention relates to improvements in mechanism for finding the end of the yarn or thread upon a yarn-mass and for carrying the found thread to the desired point. The

e invention has special although not exclusive reference to automatic winders of the type shown in Patent No. 1,267,977, dated May 28, 1918. A particular object of the invention is to increase the certainty with which the found thread is caught by theelement that carries the thread to the knotter, and to dispose with certainty of any c011 of yarn that may be picked up by the end-finding means.

In the accompanying drawings, Flg. 1 is a fragmental vertical sectional View of a mechanism embodying the features of this invention, the view being taken approximately in the plane'of dotted line 1-1 of Fig. 5. Fig. 2 illustrates a stage in the operationof the mechanism for severing a displaced coil or loop of yarn. Fig. 3 is a 'fragmental plan view. Fig. 4 is an enlarged plan View of certain parts shown in Fig. 3. Fig. 4 is a section on line a of Fig. 4. Fig. 5 is a fragmental front elevation. Figs. 6, 7 and 8 are sectional views taken on lines 6, 7 and 8, respectively, of Fig. 1.

The invention as herein shown is embodied in a machine that is generally similar to the one disclosed in Patent No. 1,267,977, hereinbefore mentioned, but it will be understood that the invention is not limited to the form and arrangement of mechanisms herein illustrated. w

The present drawings represent only so much of the machine as is necessary to an understanding of the invention. Reference may be had to the before-mentioned patent for an understanding of the relation of the parts shown in the drawings to the other mechanisms of the winder, the reference characters used in said patent being employcd herein, as far as practicable.

The machine comprises mechanism for unwinding yarn from bobbins (not shown) onto tubular cores b (Fig. 2) to form cheeses or cross-wound yarn masses 0, and a mechanism arranged to travel along the winding mechanism and tie the ends of the yarn on reserve bobbins to the ends of the yarn on the cheeses and perform various other operaliens attending the production of cheeses. The winder consists of an elongated framework which may be similar to that shown in Patent No. 1,175,710 dated March 14, 1916, and providing two parallel sides, each side having means for supporting bobbins and means for supporting and rotating cheeses. The winder-tending mechanism travels around the winder and ties the end of the yarn on a reserve bobbin to every cheese except in the case of cheeses that have reached the desired size. The winder may be considered as consisting of a plurality of units. Each unit comprises a cheese-su porting arm 30 which is provided at one si e of its free end with a pivotally supported hub 30. The core 6 is releasably held on the hub 30 by any suitable means, as, for

example, that shown in the Colman Patent No. 1,236,822, dated August 14, 1917. Said patent discloses a spool 12 to receive wild yarn, said spool being herein indicated at d.

The carriage or framework of the windertending mechanism is indicated at 89. In said framework is supported a vertical shaft 223 (Fig. 5) through which power is communicated from a suitable source to the mechanisms to which the present invention relates.

Exhaust air currents are employed for finding the thread ends'upon the cheeses, for holding the thread at various points and for carrying ofi waste portions of the thread. The air currents may be created by an exhauster (not shown) connected to a tube 242.

The means for finding the thread ends upon the cheeses includes a roll 278 on which the cheese rests and whereby the cheese is revolved in the direction to unwind yarn from the cheese. At the rear end of the roll 278 is located a suction tube 291 which is movably connected with the tube 242.

While the movable connection may be of any suitable character, that herein shown comprises pivots 600 (Fig. 8) projecting from opposite sides of the suction tube 291 near one end of the latter, the pivots 600 being mounted in bearings 601 in the framework 89. The end of the suction tube 291 adj acent to the pivots 600 is formed upon the arc of a circle concentric with said pivots, thus producing a convex surface 602 that fits within a concave surface 603 on the lower end of the tube 242. 604 (Fig. 8) is a packing carried by the convex portion 602 of the suction tube, and serving to prevent the cheese to the suction tube.

leakage of air through the joint between the tubes 242 and 291.

The free end of the suction tube 291 is turned upwardly, and the month 290 of said tube is located adjacent to the rear ad of the roll 278. As the winder-tending mechanism progresses the mouth 290 arrives under the cheese. As the latter is being revolved by the roll 278 the free end of the yarn on the cheese is drawn into the mouth 290.

If there be a loose coil of yarn on the periphery of the cheese, it will sometimes appen that the suction current picks up the exhausted thread at such a point that the exhausted thread is drawn through said coil before entering the suction tube. In such a case, as the winder-tending mechanism advances, the coil is pulled laterally off the periphery of the cheese and onto the core I) or the spool 11. In the rotation of the cheese, this coil lengthens and is drawn into the suction tube, thus producing a loop e extending around the core I; or the spool d, and a strand f extending from the periphery of In order to get rid of the loop e I provide a shear consisting of a stationary blade 605 and a movable blade 606. 606 is a stationary lug underlying the shear blades and serving to.

prevent a thread from getting too far into the space between said blades. The shear blades 605 and 606 are located in a horizontal lane, and extend close to the periphery of t e cheese. When the suction tube 291 is in its upper position, the mouth 290 hes inwardly of the ends of the shear blades and in the plane of said blades, as shown in Fig. 1. It will be apparent that with the mouth 290 in this position, no portion of the 100 0 extends between the shear blades. In or er to draw the loop a downward and thus carry one strand of the loop between the shear blades, the suction tube 291 is pivotally supported, as hereinbefore stated. The means for swinging the suction tube comprises an arm or bracket 607 (Figs. 5 and 8) which is rigid with said tube and carries a roller stud 608 that runs within a cam groove 609 formed in a disk 300. Said disk is fixed upon a shaft 265 which is driven fil'iom th)e shaft 223 through bevel gears 266 T e means for actuating the shear is as follows: The shear blade 606 is connected to a bell-crank lever 610 which is pivoted to the framework at 611. Attached to the bellcrank lever 610 is a stud 612 (Fig. 6) that lies within a slot 613 formed in an arm 614. The arm 614 is fixed to a vertical rock shaft 615 (Figs. 3 and 5) mounted in bearings in the carriage 89. Rigid with the lower end of the shaft 615 is a crank arm 616 that engages a cam groove 617 in a disk 618 fixed to the shaft 223.

Before the roll 278 has passed completely out from under the cheese, another roll 301 passes under the cheese, the rolls 278 and 301 revolving in the same direction, and their upper sides being in the same horizontal plane. The rolls 278 and 301 are in approximate alineinent, and the mouth of the suction tube 291 is located in the space between them. The shear blades project into said space.

The means for carrying to the knot-tying mechanism the thread that has been picked up by the suction tube 291 comprises an arm 316 fixed to one end of a rock shaft 317. The arm 316 is arranged to swing in a space 323 provided at the rear side of the suction tube 291. On the free end of the arm 316 is a head 324 (Fig. 4) having a hook 325 to engage the portion of the thread extending from the suction mouth 290 to the periphery of the cheese (the strand f). As shown in Fig. 4, the head 324 is at one side of the arm 316, and in its travel it passes above the month 290 when the latter is in its lower position; or, in other words, the path of movement of the head 324 intersects the path of movement of the mouth 290. Hence when the suction tube is down, the strand f extends across the path of movement of the head 324. Said head has an inclined surface 325 adapted to force the thread aside as the arm 316 swings into its upper position, the thread snapping into the hook 325 as the arm completes its upward swing. The downward movement of the suction tube lengthens the strand f and draws it away from the cheese and other adjacent parts, thereby rendering possible the use of a relatively large hook 325 and a relatively long surface 325 which will certainly engage the strand 7 even if the latter be jumping about, and will guide the thread to the hook 325.

A cover or guard plate 619 is located in the horizontal plane of the upper portion of the rolls 278 and 301. This plate extends relatively close to the suction mouth 290 when the latter is in its elevated position (see Figs. 3 and 4). A notch 620 is formed in the plate 619 rearwardly of the suction tube, the term rearwardly being here used in reference to the direction of travel of the winder-tending mechanism. This notch extends toward the winding mcchanism, or in other words, in the direction from which the strand is being unwound from the periphery of the cheese] A finger 621 on the plate 619 extends into the space between the rolls 278 and 301, and has in its edge a notch 622. As the winder-tending mechanism passes along beneath the cheese, the strand f is drawn into contact with the edge of the finger 621 between the notches 620 and 622. The hook 325 of the arm 316 catches the portion of the strand f extending between the lowered suction tube and the finger 621. In order that the strand f shall not escape from the finger 621 before said strand is taken by the hook 325, there is provided on the shear blade 605 a lug 623 that extends beneath said finger, the lug 623 being sufiiciently far below the finger 621 to form a tortuous passage 624 (Fig. 4) through which the strand will slip when the arm 316 swings downwardly.

The structure at one side of the space 323 through which the arm 316 moves has a groove 326 (Fig. l) which is concentric with the axis of rotation of the arm 316, the point of the hook 325 traveling through said groove. As the arm 316 swings downwardly it carries a bight of the strand 7 to the knottying mechanism (not shown), slack being furnished by the unwinding of the cheese due to the rotation of the roll 301. If desired, the peripheral speed of said roll may be greater than that of the roll 278, and it should be such that the cheese furnishes all of the thread for the loop or bight produced in the downward movement of the arm 316, 'no thread being drawn from the suction tube 291. As the arm 316 swings downwardly it carries one strand of the bight into a hook 327 which is fixed to the frame-work. One side of the space 323 is bounded by a guide bar 406. As the winding-tending mechanism progresses, the strand extending from the hook 325 up to the cheese passes through a narrow space 625 (Fig. 3) extending parallel with the direction of travel of the winding-tending mechanism, one side of which space is defined by a bar 408.

As the arm 316 completes its downward movement, the cheese passes into position above a slack-take-up roll 391 (Fig. 3) which revolves in the direction opposite to the direction of rotation of the rolls 27 8 and 301. By the time the found thread has been tied to the reserve thread, the roll 391 has caused the cheese to reverse its direction of rotation and thereby take up slack in the united threads. To prevent the united threads from jumping forwardly (referring to the direction of travel of the winder-tending mechanism) out of the space 625, I provide near the forward end of said space a g ard lug 626 on the bar 408, said lug having an inclined forward side and extending across the vertical plane of the inner side of the space 625.

The operation is as follows: The winder units a re operated upon by the winder-tending mechanism in regular succession. When the roll 2T8 comes into position beneath a given cheese, said roll rotates the cheese in the direction to unwind thread from the cheese. As the carriage continues to advance the mouth oropening 290 of the suction tube 291 passes beneath the reversely-rotating cheese. In the further advance of the traveling carriage the cheese is rotated in the unwinding direction by the roll 301; hence,

during the entire passage of the suction opening 290 beneath the cheese the latter is r0 tated to unwind thread. The conjoint action of the unwinding rolls 278 and 301 and the suction current is to pick off from the yarn mass the end portion of the exhausted thread. Sometimes the suction current will draw the thread through a loose coil on the periphery of the cheese, in which event the continuing travel of the winder-tending mechanism will cause the coil to be pulled completes its upward swing, the inclined edge 325 (Fig; 4) pushing the strand f aside, and said strand springing into the hook 325. Thereupon the arm 316 swings downwardly, the strand 7 being drawn out into a loop as the conjoint result of the continued backward rotation of the cheese and the downward swing. of the arm. Soon after the arm 316 has started downward, the sheer blade 606 is operated to sever the loop e, whereupon the suction current draws the thread forn'iing said loop into the suction tube. Said tube then returns to its upper position.

After the tying has been completed the advance of the winder-tending mechanism brings the rotating roll 391 beneath the cheese. This roll rotates in the direction to wind the thread upon the cheese, thereby taking up the slack in the united threads between the cheese and the bobbin.

I claim as my invention: 3

1. The combination of a roll arranged for peripheral contact with the periphery of a thread mass for rotating the thread mass in the direction to unwind thread therefrom, a suction tube movable to carry the open end thereof toward and away from the line of tangency of said roll and thread mass a linger extending between said roll and said suction tube, said finger being notched for the reception of the thread unwound from the thread mass, a shear blade stationarily located adjacent to said line of tangency, a lug on said blade extending beneath said fin ger but spaced therefrom, a coacting movable shear blade, means for swinging the suction tube toward and away from said line of tangency, an arm pivoted to swing in a plane parallel with the lanes of moven'ient of said roll and said suction tube, and a head at one side of the free end of said arm, the path of said head intersecting the path ofpivotal movement of the open end of The said suction tube, said head having a hook and an inclined edge arranged to engage the unwound thread and guide it into said hook.

2. The combination of a roll arranged for peripheral contact with the periphery of a thread mass for rotating the thread mass in the direction to unwind thread therefrom, a suction tube movable to carry the open end thereof toward and away from the line of tangency of said roll and thread mass, a. finger extending between said roll and said suction tube, a shear blade stationarily located adjacent to said line of tangency, a lug on said blade extending beneath said finger but spaced therefrom, a coacting movable shear blade, means for swinging the suction tube toward and away from said line of tangency, an arm pivoted to swing in a plane parallel with the planes of movement of said roll and said suction tube, and a head at one side of the free end of said arm, said head having a hook and an inclined edge arranged to engage the unwound thread and guide it into said hook.

3. The combination of a roll arranged for peripheral contact with the periphery of a thread mass for rotating the thread mass in the direction to unwind thread therefrom, a suction tube movable toward and away from the line of tangency of said roll and thread mass, a shear blade stationarily located adjacent to said line of tangency, a coacting movable shear blade, means for swinging the suction tube toward and away from said line of tangency, and a hooked member movable to and fro between said roll and said suction tube, said member having. an inclined edge arranged to engage the unwound thread and guide it into the hook.

4. The combination ofa roll arranged for peripheral contact with the periphery of a thread mass for rotating the thread mass in the direction to unwind thread therefrom, a suction tube arranged to act upon the thread mass near the line of tangency of said roll and thread mass, a finger extendin between said roll and said suction tube, a s ear blade stationarily located adjacent to said line of tangency, a coacting movable shear blade, an arm pivoted to swing in a lane parallel with the plane of movement 0 said roll, and a head at one side of the free end of said arm, said head having a hook and an inclined edge arranged to engage the unwound thread and guide it into said hook.

5. The combination of a roll arranged for peripheral contact with the periphery of a thread mass for rotating the thread mass in the direction to unwind thread therefrom, a suction tube movable to carry the open end thereof toward and away from the line of tangency of said roll and thread mass, :1 finger extending between said roll and said suction tube, a shear blade stationarily located adjacent to said line of tangency, 9.

lug on said blade extending beneath said finger but spaced therefrom, a coacting movable shear blade, means for swinging the suction tube toward and away from said line of tangency, and a thread-taking member having a hook and an inclined edge arranged to engage the unwound thread and guide it into said hook.

6. The combination of a roll arranged for peripheral contact with a thread mass for rotating the thread mass in the direction to unwind thread therefrom, means to exert suction upon the eriphery of the thread mass at the line of tangency of the thread mass and the roll, said suction means being movable toward and away from said line of tangency, and a thread-severing device located outside of the suction means, close to said line of tangency and at the side of said suction means opposite to the side from which the thread being unwound approaches said suction means.

7. The combination of a roll arranged to engage the periphery of a thread mass for rotating said thread mass in the direction to unwind thread therefrom, and a suction tube movable toward and away from the line of tangency of the roll and the thread mass.

8. The combination of a roll arranged to engage the eriphery of a thread mass to rotate the t read mass in the direction to unwind thread therefrom, a pivotally supported suction tube, and means for pivotally moving said tube away from the periphery of the thread mass.

9. The combination of means for rotating a thread mass in the direction to unwind thread therefrom, a thread shear, located close to said means, and a suction tube movable approximately radially toward and away from the periphery of the thread mass to carry one side of a loop of thread into the shear and thus release the loop from said thread mass.

10. The combination of means for rotating a thread mass in the direction to unwind thread therefrom, a thread-severing device located close to the periphery of the thread mass, and a suction tube movable away from the periphery of the thread mass to carry a thread into the severing device.

11. The combination of a suction tube, means for causing relative rotation of a. thread mass and said suction tube, a thread severer located close to the periphery of the thread mass, and means for causing relative separating movement of the tube and the thread mass approximately radially of the thread mass to carry into said severer one side of a loop of thread picked u from the thread mass by said tube and t us release the loop from said thread mass.

12. The combination of a roll arranged for peripheral contact with the eriphery of a thread mass for rotating tiib thread mass in the direction to unwind thread therefrom, a suction tube movable toward and away from the line of tangency of said roll and thread mass, thread-severing means located adjacent to said line of tangcncy, means for swinging the suction tube toward and away from said line of tangency, and a hooked member movable to and fro between said roll and. said'suction tube, said member having an inclined edge arranged to engage the unwound thread and guide it into the hook.

13. The combination of a roll arranged for peripheral contact with the periphery of a thread mass for rotating the thread mass in the direction to unwind thread therefrom, a suction tube arranged to act upon the thread mass near the line of tangency of said roll and thread mass, a shear blade stationarily located adjacent to said line of tangency, a coacting movable shear blade, a reciprocatory thread-taking member movable in a plane parallel with the plane of movement of said roll, and a head on said member, said head having a hook and an inclined edge arranged to engage the unwound thread and guide it into said hook.

14. A textile machine having, in combination, a movable suction tube, an arm pivoted to swing in a plane parallel with the plane of movement of said suction tube, and a head at one side of the free end of said arm, the path of said head intersecting the path of movement of the open end of said suction tube, said head having a hook and an inclined edge arranged to engage the unwound thread and guide it into said hook.

15. The combination of means for rotating a thread mass in the direction to unwind thread therefrom, a thread severer, and a suction tube movable toward and away from the periphery of the thread mass to carry a thread within reach of the severer.

16. The combination of means for rotating a thread mass in the direction to unwind thread therefrom, a movable thread-taking hook, and a suction tube movable to carry a thread of the thread mass into the path of said hook.-

17. The combination of a suction tube, means for causing relative rotation of a thread mass and said suction tube to enable the tube to pick up a strand of the thread mass, means for causing relative separating movement of the tube and the thread mass approximately radially of the thread mass to draw the strand away from the thread mass, and a hook to take said strand, said hook being movable through the space between the tube and the thread mass.

I 18 The combination of two rolls arranged in approximate alinement and spaced apart and arranged to drive, in unwinding direction, a thread mass resting upon the upper portion of said rolls, a suction tube the mouth of which is located in the space between said rolls, means for moving said tube to carry the mouth thereof up and down in said space, a thread severer located in position to receive and sever one strand of a loop drawn down from the thread mass by said suction tube in the downward movement of the latter, and a hook arranged to swing in the space between said mouth and one of said rolls to engage a strand extending vfrom the thread mass to said mouth.

19. The combination of two rolls arranged in approximate alinement and spaced apart and arranged to drive, in unwinding direction, a thread mass resting upon the upper portion of said rolls, a suction tube the mouth of which is located in the space between said rolls, means for moving said tube to carry the mouth thereof up and down in said space,a stationary shear blade projecting into the space between said rolls and located in position to be engaged by a thread drawn down from the thread mass by said suction tube in the downward movement of the latter, and a coacting shear blade to sever said thread. a

20. The combination of two rolls arranged in approximate alinement and spaced apart and arranged to drive, in unwinding direction, a thread mass resting upon the upper portion of said rolls, a suction tube the mouth of which islocated in the space between said rolls, means for moving said tube to carry the mouth thereof up and down in said space, and a thread severer located in position to sever a thread drawn down from the thread mass by said suction tube in the downward movement of the latter.

In testimony whereof, I have hereunto set my hand.

HOWARD D. COLMAN.

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