US1992757A

US1992757A - Winding machine

Info

Publication number: US1992757A
Application number: US656455A
Authority: US
Inventors: John O Mckean
Original assignee: FOSTER MACHINE CO
Current assignee: FOSTER MACHINE Co
Priority date: 1933-02-13
Filing date: 1933-02-13
Publication date: 1935-02-26
Anticipated expiration: 1952-02-26

Description

Feb. 26, 1935. J. o. MCKEAN WINDING MACHINE Filed Feb. 13, 1933 4 Sheets-Sheet l MN MW lNVENTOR ATTORNEYS WINDING MACHINE Filed Feb. 13, 1933 4 Sheets-Sheet 2 ATTORNEYS J. O. M KEAN WINDING MACHINE Feb. 26, 1935.

Filed Feb. 13, 1953 4 Sheets-Sheet 3 INVENTOR- ATTORNEYS J. O. MOKEAN WINDING MACHINE Feb. 26, 1935.

4 Sheets-Shet 4 Filed Feb. 15, 1933 INVENTOR- Patented Feb. 26, 1935 WINDING MACHINE John 0. McKean,

Foster Machine Company,

Westfield, Mass., assignor to Westfield, Mass, a

corporation of Massachusetts Application February 13, 1933, Serial No. 656,455

6 Claims. (01. 242-43) One object of my invention is to provide certain improvementsin the construction, form and arrangement of a lifting thread bar for winding machines, in which the winding of the package is .5 begun previous to the leading of the thread into the thread traversing means.

Another object of my invention is the provision of a lifting thread bar pivotally mounted upon the stop motion cover in such a manner as to effect the previous named object. Another object of my invention is to provide a means whereby whipping and cutting of the thread by the thread traversing means previous to the attainment of full speed by the rotating package is obviated by holding the thread out of the thread guide until the full speed of the package is attained. l

Other objects and advantages will be apparent as invention is further described. 20 A practical embodiment of my invention is represented in the accompanying drawings, in which a Fig. lrepresents a vertical transverse section through'so much of a winding machine as will give a clear understanding of my improved lifting thread bar, the parts being inthe positions they assume when the yarn has broken or become ex-' hausted and the package has been lifted away from its winding roll.

Fig. 2 represents a vertical transverse section 30 through the same portion of the winding machine, the parts being in the positions they assume when the hand lever has been fully depressed for temporarily depressing and holding the detector wire, for lifting the package controlling rack bar out of engagement with its lever arm and for temporarily raising the lifting thread bar to hold the thread out of the thread guide.

Fig; 3'represents a view similar to Figs. 1 and 2 with the parts in the positions they assume under normal running conditions. r l i Fig. 4 represents the stop motion cover and lifting thread bar in front elevation, and

Fig. 5 represents an end view of the same.

It should be understood that by the term thread as used in this application, I mean to include yarn, cord or other media which can be successfully handled by the machine. 7

The winding roll 1 revolves the package 2 by frictional surface contact therewith, the package in the present instance being shown as a cop. The package is carried by a forwardly projecting arm 3 of a rock lever mounted on a shaft 4, the depending arm 5 of this rock lever having pivoted thereto at 6 the rear end of a rack bar 7. The ratchet toothed portion 8 of the rack bar normally engages a tooth 9 on the depending arm 10; of a rocklever loosely mounted on a pivot pin 11, which lever has an uprising arm 12 to which oneend of a coil spring 13 is attachedfor yieldingly holding the'depending arm 10 at the limit of its -5 rearward movement with its stop 14 in engagement with a frame bar 15. The coil spring 16 connects the depending lever arm 5 with the rack bar '7 so as to ensure the engagement of the toothed portion 8 of the rack bar with the tooth 9 of the depending loose lever arm 10.

The traverse guide 1'7 for the yarn is recipro cated in the usual manner by a cam surface 18 fast on the cam shaft 19. This cam shaft 19 also carries a kicker cam 20,preferably provldedwith a sin-1 gle lobe, which cam serves as a part of the tripping mechanism for the stop motion mechanism.

The detector wire 21 of the tripping mechanism is normally held depressed by the yarn as it passes to the package during thewinding thereof. This detector wire is-c'arried by a rock'lever 22 which swings on a pivot pin 23 carried by the latch lever 24 of the tripping mechanism, this latchlever in turn swinging on a pivot pin 25. A tripping roller 26 is carried by the detector lever 22. Metal to metal contact between the kicker cam and tripping roller is obviated in this con} struction by making the roller of some suitable non-metallic material, such for instance ashard fibre. This tripping roller is normally held outof the path of the kicker cam by the depression of the detector wire 21 due to its contact with the yarn as it passes to the package. .Should the yarn break or become exhausted, the tripping roller 26 is automatically swung into the path of and into rolling contact with the kicker cam 20 the moment the detector wire 21 is permitted to rise a g I The end of the spring 13 opposite to that which is attached to the uprising arm 12 of the rack 40 engaging lever isattached to the latch lever 24 for normally holding the latch lever in its operative position in engagement with the hand lever.

The three-armed hand lever 27, 28, 29 swings on the pivot pin 11. end to the uprising arm 28 of the hand lever and at its other end to the frame forswinging-the hand lever to its raised position when it is released by the latch lever 24 of the tripping mech-, anism The forwardly projecting arm 2'7 of the hand lever is provided with an extension 31 which is developed into a handle 32 for depressing the lever. The rearwardly projecting arm 29 of the hand lever is provided with a hook pin 33 arranged to raise the ratchet toothed portion 8 of the rack A spring 30 is attached at one noted by 39 and the v the rack bar 7 out bar out of engagement with the tooth 9 of the depending lever arm 10 at or near the end of the depression of the hand lever, after fulcrum projection 364, to be presently described, has raised lifting thread bar 36, also to be presently described. This relation of the parts is shown in Fig. 2.

The stop motion cover 34 swings ona pivot pin 35 carried by the forwardlyprojecting arm 27 of the hand lever, which pin 35 also coacts with the latch lever 24 to cause the latch leverto hold the hand lever in its nearly depressed position, as shown in Fig. 3, when the package is beingwound. A lifting thread bar 36 is carried by a lifting thread bar holder 361 I which is pivoted by pivot pins 362 to the stop motion cover 34. This lifting thread bar extends in close proximity to the traverse guide 17 and is attached to the lifting thread bar holder 361 by means of 1ugs363. Lifting thread bar holder 361 is so shaped as to rest proximate to fulcrum projection 364 when the stop motion mechanism is in its running position, as. shown in Fig. 3. Lifting thread bar holder 361 is provided with a projecting stop 365 which serves to-limit its downward pivotal motion whenthe parts are in a knock-off position as shown inFig. 1, permitting lifting thread bar holder 361 to be lifted away from the fulcrum projection 364. A screw 37 carried by the cover 34 and slidably engaged with the frame is used for adjusting the position of the cover, a spring 38 serving. yieldingly to hold the cover in its adjusted position.

The bobbin from which the yarn is fed is dethreaded yarn by 40. The tension device through which the yarn is passed is denoted by 41.

.The. one-way interlocking connection between thehand lever andlatch bar controlling lever is shown as comprising an offset lug 42 on the depending leverarm 10 arranged in position to be engaged by a depending lug 43 on the hand lever.

Operation cover. 3.4 to. its lowestposition, rocks the parts,

361, .363. and 36 upon the fulcrum projection 3,64, and thuskeepsthe yarn high enough above the thread-guide 17 so that when the full depression of the hand lever-causes the hook pin 33 to raise of engagement with the lever arm,10,.thereby permitting the package 2 to drop down onto the winding roll 1, nevertheless: the thread is kept away from the thread guideuntil the return of the handle to running position. The. spring 13 is permitted to swing the lever arm to. the limit of its .rearward movement.

' Assoon as the yarn starts. winding, the hand lever is released and it will immediately rise slightly to the position shown in Fig. 3 where its pin 35 will be engaged by the latch lever 24 releasably locking the hand lever in position. This slightraising of the handle raises also the stop motion cover 34, rocks the

parts

361, 363 and 36 upon the fulcrum projection 364, lowering the thread bar 36, permitting the yarn to, drop into the traverse guide 17. a

When the yarn breaks or becomes exhausted, the detector wire 21 will be permitted to rise to the position shown in Fig. 1, thereby causing the tripping roller 26 to be moved into the path of and into rolling contact with the kicker cam 20. As the kicker cam revolves, it will throw the roller out of the path of the cam and thereby swing the latch lever forward causing it to be disengaged from the latch pin 35 on the hand lever. The spring 30 immediately raises the hand lever to the position shown in Fig. 1, thereby causing the lever arm 10, because of its one-way interlocked connection 42, 43 with the hand lever,

to pull the rack bar 7 forward, lifting the package off of the winding roll 1. The spring 16 ensures the locking engagement between the rack bar 7 and the depending lever arm 10 when released from the hook pin 33, thereby maintaining the package in its raised position out of contact with the winding roll. This lifting movement of the hand lever also raises the stop motion'cover 34' causes projecting stop 365 to contact. with it and lifts lifting thread bar holder 361 and its integral parts away from the fulcrum projection 364. a a

It will thus be seen that I have devised a lifting thread bar for winding machines wherein-the package begins to wind previous to the-thread coming into contact with thus avoiding the troublesome and expensive whipping, cutting, and weakening of the thread when the thread is caught by the thread'guide while it is still stationary, or moving slowly. It will also be seen that other advantages inhere in my present construction which need not here be enumerated. a

The patentable elements shown and described but not claimed herein are covered byclaims of my copending application filed Dec. 6-, 1930, Serial No. 500,495, now Patent No. 1,958,060, issued May 8, 1934. I

It is evident that various changes may be resorted to in the construction, form and arrangement of the several parts without departing from the spirit and scope of myinvention, and hence I do not intend to be limited to the particular embodiment herein shown and. described, but

What I claim is: v

1. In a winding machine, a package holder, means for actuating said package holder, traversing means, means for engaging and disengaging said package holder from said package holder actuating means, and means thereon adapted to guide the thread to the package out of the path of said traversing means until after the winding of the package starts.

2. In a winding machine, a package holder, means for actuating said package holder, traversing means, means for engaging and disengaging said package holder from said package holder actuating means, a thread bar carried by said engaging and disengaging means adapted to support the thread away from said traversing means until after the winding of the package starts.

3. In a winding machine, a package holder,- means for actuating said package holder, traversing means, means for engaging and disengaging said package holder from said package'holder actuating means, a thread bar pivotally' connected to said engaging and disengaging means, a stationary fulcrum adapted to coact with said thread bar, said fulcrumed and pivoted thread bar being adapted to support the thread away from said traversing means when said engaging and disengaging means is in a position to become engaged.

4. In a winding machine, a package holder, means for actuating said package holder, travers-v the traversing guide,

ing means, means for engaging and disengaging said package holder from said package holder actuating means having an engaged position intermediate its disengaged and its engaging positions,

a stationary fulcrum, a thread bar pivotally connected to said engaging and disengaging means adapted to rest proximate said fulcrum when said engaging and disengaging means is in its engaged position and adapted to be raised by said fulcrum when said engaging and disengaging means is in its engaging position so as to support the thread out of said traversing means.

5. In a winding machine, a package holder, means for actuating said package holder, means for engaging and disengaging said package holder from said package holder actuating means, and a plurality of alternate elements for guiding the thread to the package as the package is being wound including a traversing element and a manually actuatable non-traversing element mounted on said engaging and disengaging means.

6. In a winding machine, a frame, a projection thereon, a package holder, frictional means for actuating said package holder, thread tensioning means, traversing means operating between said thread tensioning means and said packge holder, a thread bar interposed between said tensioning means and said traversing means, a stop motion cover, said thread bar being pivoted to said stop motion cover and being fulcrumed upon said projection so as to support the thread away from said traversing means at the time the package begins to wind.

JOHN 0. McKEAN.