US2717126A

US2717126A - Control mechanism for drives of bobbin winding machines

Info

Publication number: US2717126A
Application number: US336469A
Authority: US
Inventors: Egee Walter Warren
Original assignee: FLETCHER WORKS Inc
Current assignee: FLETCHER WORKS Inc
Priority date: 1953-02-12
Filing date: 1953-02-12
Publication date: 1955-09-06
Anticipated expiration: 1972-09-06

Description

6, 1955 A w. w. EGEE 2,717,126

CONTROL MECHANISM FOR DRIVES OF BOBBIN WINDING MACHINES Filed Feb. 12, 1953 2 Sheets-Sheet l INVENTOR. WALTER WARREN EGEE ATTORNEY W. .W. EG EE Sept. 6, 1955 CONTROL MECHANISM FOR DRIVES OF BOBBIN WINDING MACHINES.

2 Sheets-Sheet 2 Filed Feb. 12, 1955 INVENTOR. WALTER WARREN EGEE ATTORNEY United States Patent CONTROL MECHANISM FOR DRIVES 0F BOBBIN WINDING MACHINES Walter Warren Egee, Yeadon, Pa., assignor to Fletcher Works Incorporated, Philadelphia, Pa., a corporation of Pennsylvania Application February 12, 1953, Serial N 0. 336,469

6 Claims. (Cl. 242.39)

This invention relates. to control mechanism for drives of bobbin winding machines and more particularly to such winding machines in which the bobbin building is efiected on fixed centers.

In my prior application for Letters Patent for Bobbin Drive for Winding Machines, filed December 8, 1952, Serial No. 324,689, now Patent No. 2,650,035, there is shown an improved mechanism for the winding of bobbins on fixed centers for which the control. mechanism of the present invention is particularly suitable.

It is the principal object of the present invention to provide control apparatus for winding which is manually operable if desired, and is operated under certain conditions for discontinuing the winding of a particular bobwill be more readily understood from the following description, taken in connection with the accompanying drawings forming part thereof, in which;

Figure 1 is a front elevational view of a. portion of a winding machine having control mechanism in accordance with the invention mounted: thereon;

Fig. 2 is an end elevationaljvview. as seen from the right of Fig. 1;

Fig. 3 is a vertical sectional view taken approximately on the line, 33 of Fig. 1, part5 b ingbroken away to show the details of construction, and illustrating the control mechanism in one position;

Fig. 4 is a view similar to Fig. 3 illustrating the control mechanism in another position; and

Fig. 5 is a fragmentary vertical sectional viewtaken approximately on the line 5.5. of Fig 1.

It should, of course, be understoodthat the description and drawings herein are illustrative merely, and that various modifications and changes;v may be. made in the structure disclosed without departing; from the spirit of the invention.

Like numerals refer to like parts throughout the several views.

Referring now more particularly to the drawings, a pair of horizontal parallel rails 10: are shownv as. a fragmentary portion of the frame of a windingmachine, together with a horizontal traverse bar 11 havingmounted thereon and movable therewith, for each bobbin B to be wound, a yarn or strand guide eye.12 A horizontal driveshaft 13 is also provided, extending parallel to the rails 10. The traverse bar 11 and the shaft 13 are actuated in any desired manner common to winding. machines. At a plurality of predetermined locations, on the rails. 10,

ice

dependent upon the size and capacity of the winding machine, and for each bobbin B to be wound, an end plate 15 is provided, rigidly secured tothe rails 10.

The end plate 15 has a stub shaft 16 fixedly mounted therein and held in position by a nut 17-. 'Rotatably mounted on the stud shaft 16 in any desired manner such as by an internalball bearing (not shown), a hollow cylindrical driving sleeve 19 is provided. The sleeve 19 has a transversely extending end wall 22' withinwhich a bobbin supporting pin 23 is mounted, in axial ali'nement with the stub shaft 16, for engagement'withi'n -one of the. central end openings 24 of the bobbin B; A re-. silient ring or facing 25, of rubber or the like, is' preferably provided on the exterior of the wall 22 for engagement by the end disc of the bobbin B.

The end plate 15 has a pin 30. mounted thereon, for the reception of a slotted portion 32at one end of acontrol arm 33. It will be noted that the slotted portion 32 permits of a sliding movement of the arm. 33. At'the opposite end of the control arm.- 33, a tension. coil spring 34 is connected, the other end of the spring being connected to a pin 35 on the end plate 15. It will be noted that the spring 34 tends to urge the arm 33inwardly or rearwardly unless prevented as hereinafter explained.

The arm 33 has fixedly mounted thereon, preferably in upwardly offset relation to the line connecting the centers of the

pins

30 and 35, a shaft 37* with an enlarged head, 38 for the rotatable mounting. by a ball bearing (not shown) of a pulley of resilient material, and preferably of rubber, cork, a mixture of rubberand cork, or other similar material. The pulley 40' is in drivingalinement and preferably in. continuous engage= ment with the sleeve 19.

The shaft 13, for each bobbin B to be wound, and. in driving alinement with the pulley 40, has-a driving pulley secured thereto for rotation by the shaft 13i It will be noted that with-the arm 33 in a rearward position, urged by the spring 34, and with the rim 40- in engagement with the periphery of the. driving sleevev 19-, the rim 40also engages the periphery-of the driving.

pulley 45 so that a rotary motion is impartedvv to the supporting pin 23 It will also be noted that with the arm 33: in retracted position the rim 40 is out of engagement with the. driving pulley 45-.

At the opposite end of each bobbin B any suitable supporting structuremay be provided. For this purpose a base bracket secured to the rails 10., with a bi-.. furc ated supporting bracket 51 may be employed, urged by a spring 53, and with the arms 54 having supportingblocks. 55 at their upper ends within which threaded pivot pins 57 are mounted and locked in adjusted position in a bearing supporting ring 60 by nuts 58-. A ball bearing 61 may have its outerrace carried by the ring- 60 and its inner race provided with a supporting pin 62" to which a bobbin mounting pin 63 is axially secured and with a shoulder 64 for engagement in and with a central opening 24 of the bobbin B.

The control mechanism in accordance with thepresent invention will now be described.

The rails 10 preferably have mounted thereon a bifurcated supporting block having upwardly extendingarms 71 within which a shaft 72 is mounted. The shaft 72, between the arms 71' has a lever 73 secured thereto. for movement therewith and on the outer end of the lever 73 a stub shaft 74 is provided, having an enlarged head 75, and with a yarn contacting roller 76 eccentrically mounted thereon. I

The shaft 72, also has securedthereto for movement therewith an actuating arm 77 with a contact face 78.

The end plate 15 has mountedthereon a; stud: Z9:

with anlenlarged head 80; for engagementin an L-shaped;

slot 81 in a control lever 82. The slot 81 has an upwardly extending branch and a rearwardly extending branch.

The control lever 82, at its lower end, has a vertical slot 83 engaging on a pin 84 carried by the end plate 15. A spring 85 engaging the control lever 82 at one end and the end plate at the other end normally tends to urge the upper portion of lever 82 forwardly so that the lever 82 swings forwardly if permitted by the rearwardly extending branch of the slot 81. If the upwardly extending branch of the slot 81 is in engagement with the stud 79, the upper portion of the control lever 82 is held against forward swinging movement.

The control lever 82, at the lower end thereof, is provided with an abutment pin 86 for engagement by the contact face 78.

The control arm 33 is preferably provided with an end portion 87 having an actuating pin 88 mounted thereon for engagement by the control lever 82 to retract the control arm 33 as hereinafter explained.

The mode of use of the control mechanism in accordance with the invention will now be pointed out.

The drive shaft 13 is rotated and the traverse bar 11 is continuously reciprocated in any desired manner. The rotation of the shaft 13 is effective for continuously driving the pulley 45.

In the normal non-operating position of the bobbin drive, the arm 33 will be held forwardly by the engagement of the pin 88 with the control lever 82 in its forward position (see Fig. 4). In this position of the control arm 33 it is held forwardly so that the pulley 40 is out of engagement with the driving pulley 44. The bobbin mounting pin 63 may be readily swung upwardly, if not already in that position, and a bobbin B engaged with one of its end openings 24 on the pin 63 and in engagement with the shoulder 64. The bobbin may then be swung downwardly, the supporting bracket 51 being moved to the right against the force exerted by the spring 53 to permit the engagement of the opening 24 at the other end of the bobbin on the bobbin mounting pin 23. The spring 53 urges the bracket 51 and the pin 63 towards the pin 23 and by reason of the pivotal mounting of the ring 60 and the bearing 61, alinement of the pins 23 and 63 is readily achieved and maintained. It will be noted that in this position the bobbin B is supported completely free for manual rotation if desired.

When it is desired to rotate the bobbin B, the control lever 82 is swung rearwardly about the pivot provided by the pin 84, and against the force exerted by the spring 85 and is moved downwardly so that the pin 78 is engaged in the upwardly extending branch of the slot 81. The slot 83, in which the pin 84 is disposed, permits of this downward movement. As the forwardly urging force is removed from the pin 88, the arm 33 is urged rearwardly by the spring 34 so that the periphery of the pulley 40 is first brought into and held in driving engagement with the sleeve 19 and the pulley 40 is then brought into engagement with the periphery of the driving pulley 45. The driving sleeve 19 is thus driven and in turn rotates the bobbin B on the bobbin supporting pin 23.

Yarn supplied through the guide eye 12 on the reciprocating traverse bar 11 is supplied to the bobbin B for winding.

I If it is desired at any time to discontinue winding, the control lever 82 is manually moved upwardly to disengage the pin 79 from the upper branch of the slot 81 and permit forward swinging movement of the control lever 82 as permitted by the transverse or horizontal branch of the slot 81. The forward movement of the control lever 82 is effective, through the pin 88, for moving the control arm 33 so that the pulley 40 is removed from driving engagement with the driving pulley 45. The bobbin B will then come to rest, or may be stopped manually if desired, or a braking action may be effected by manipulation of the rim in engagement with the sleeve 19 while out of engagement with the driving pulley 45.

If winding continues in the normal manner, as an appreciable quantity of yarn is wound on the bobbin B, a filled condition will be reached at which the yarn contacting roller 76 engages the yarn. This engagement tends to cause the roller 76 to rotate, aided by the eccentricity of the roller 76. This movement of the roller 76 causes the lever 73 to move so that the face 78 on the lever 77 is moved to raise the pin 86, and the control lever 82 to release the lever 82 from the engagement of the upper branch of the slot 81 with the pin 79. The upper end of the control lever 82 will then swing forwardly, urged by the spring 85, as previously explained and by engagement with the pin 88 will withdraw the control arm 33 from its operating position. The bobbin B when filled, may be removed by a reversal of the operations for initially placing it in position.

With a plurality of bobbins operated with drives as heretofore described, the stopping of one bobbin, for any cause, does not interfere with the. continued winding on other bobbins.

It will be noted that when the control arm 33 is in its rearward operating position there is a clearance between the pin 88 and the lever 82, thus preventing wear at these locations while permitting accommodation of the position of the control arm 33 as required for driving. At the same time discontinuance of winding of a particular bobbin B may be readily effected manually if desired or upon filling of the bobbin B.

I claim:

1. In a bobbin winding machine having a frame and means carried by said frame for rotatably supporting a bobbin to be wound, a driving member for driving engagement with a portion of said supporting means and having a peripheral drive surface, a control arm having a pulley for engagement with said peripheral surface, a resilient member for urging said control arm in a predetermined direction towards driving position, a control lever having a slidable pivotal mounting at one end, a latching pin carried by said frame, said lever having an L-shaped slot for engagement with said latching pin, said control arm and said control lever having portions for engagement upon movement of said control lever in a predetermined direction for controlling the positioning of said control arm, and a resilient member for urging said control lever in a direction for effecting movement of said control arm away from driving position upon release from said latching pin. 7

2. In a bobbin winding machine having a frame, means carried by said frame for rotatably supporting a bobbin to be wound, a driving member for driving engagement with a portion of said supporting means, a control arm resiliently urged in one direction having a pulley for engagement with said driving member, driving means carried by said frame for engagement by said pulley, a control lever having a slot at one end for engagement with a fulcrum pin carried by said frame, said lever having a slot with a latching portion for engagement with a latching pin carried by said frame, said control arm and said control lever having portions for engagement upon predetermined movement of said control lever for controlling the positioning of said control arm with respect gagement with a portion of said supporting means and having a peripheral drive surface, driving means having a peripheral surface, a control arm having a pulley for engagement with said peripheral surfaces, a resilient member for urging said control arm and said pulley into position with said pulley in engaging relation with respect to said surfaces, a fulcrum pin carried by said frame, a control lever having a slot at one end for slidable engagement with said fulcrum pin, a latching pin carried by said frame, said control lever having a slot with a latching portion for engagement with said latching pin, said control arm and said control lever having portions for engagement upon movement of said control lever in a predetermined direction for controlling the positioning of said control arm with respect to said driving means.

4. In a bobbin winding machine having a frame, means carried by said frame for rotatably supporting a bobbin to be wound, a driving member for driving engagement with a portion of said supporting means and having a peripheral drive surface, driving means having a peripheral surface, a control arm resiliently urged in one direction having a pulley for engagement with said peripheral surfaces, a fulcrum pin carried by said frame, a control lever having a slot at one end for engagement with said fulcrum pin, a latching pin carried by said frame, said lever having a slot for engagement with said latching pin, said control arm and said control lever having portions for engagement upon movement of said control lever in a predetermined direction for controlling the positioning of said control arm with respect to said driving means, and means engaged by yarn on the bobbin for moving said lever to an unlatched position.

5. In a bobbin winding machine having a frame and means carried by said frame for rotatably supporting a bobbin to be wound, a driving member for driving en gagement with a portion of said supporting means and having a peripheral drive surface, driving means having a peripheral surface, a control arm having a pulley for engagement with both said peripheral surfaces, a resilient member for urging said control arm and said pulley into position with said pulley in engaging relation with respect to said surfaces, a fulcrum pin carried by said frame, a control lever having a slot for slidable engagement with said fulcrum pin, a latching pin carried by said frame, said control lever having a slot with a latching portion for engagement with said latching pin, said control arm and said control lever having portions for engagement upon movement of said control lever in a predetermined direction for controlling the positioning of said control arm with respect to said driving means, and a resilient member for urging said control lever in a direction for effecting movement of said control lever upon release from said latching pin.

6. In a bobbin winding machine having a frame and means carried by said frame for rotatably supporting a bobbin to be wound, a driving member for driving engagement with a portion of said supporting means and having a peripheral drive surface, driving means having a peripheral surface, a control arm resiliently urged in one direction having a pulley for engagement with both said peripheral surfaces, a fulcrum pin carried by said frame, a control lever having a slot for slidable engagement with said fulcrum pin, a latching pin carried by said frame, said lever having a slot for engagement with said latching pin, said control arm and said control lever having portions for engagement upon movement of said control lever in a predetermined direction for controlling the positioning of said control arm with respect to said driving means, a resilient member for urging said control lever in a direction for effecting movement of said control lever upon release from said latching pin, a member for engagement by the yarn on said bobbin upon a predetermined filled condition of said bobbin, and actuating means controlled by said last member for releasing said lever from latched condition.

References Cited in the file of this patent UNITED STATES PATENTS 1,444,372 Elliott Feb. 6, 1923 1,504,950 Greenwood Aug. 12, 1924 1,848,352 Kelso Mar. 8, 1932 2,610,808 Davis Sept. 16, 1952 2,614,758 Bell Oct. 21, 1952 2,666,593 Stone Jan. 19. 1954 2,673,040 Williams Mar. 23, 1954