US2146435A

US2146435A - Builder mechanism for spinning frames

Info

Publication number: US2146435A
Application number: US127499A
Authority: US
Inventors: Walter J Jacques
Original assignee: Whitin Machine Works Inc
Current assignee: Whitin Machine Works Inc
Priority date: 1937-02-24
Filing date: 1937-02-24
Publication date: 1939-02-07
Anticipated expiration: 1956-02-07

Description

Feb. 7, 1939.

W.'J. JACQUES BUILDER MECHANISM FOR S PINNING FRAMES Filed Feb. 24, 1937 5 Sheets-Sheet 1 I N VEN TOR.

Feb. 7, 1939 w; J. JACQUES Q 2,145,435

BUILDER MECHANISM FOR SPINNING FRAMES Filed Feb. 24,1937 3 Sheets-Sheet '2 ATTORNEY.

M. W1 I w. J; JACQUES 2,146,435 BUILDER MECHANISM FOR SPINNINGFRAMES Filed Feb. 24, 1937 3 Sheets-Sheet 5 W A. 1 W m M Y I- W m w d QNM 5* Q paw Q R Q w wk wk am. A R NQ RN w m QR NA x Feb. .7 1939.

- INVENTOR. Wald?! Mczaea BY ATTORNEY.

Patented Feb. 7, 1939 BUILDER MECHANISM FOR srmnmd FRAMES w Walter J. Jacques, Blackstone, Mass, assig'nor to Whitin Machine Works, Whitinsville, Mass, a corporation of Massachusetts 1 Application February 24, 1937; serial No. 127,499

5 Claims. (C1. 24243.3)

This invention relates to the builder mechanism of a spinning or twisting frame; and relates more particularly to mechanism for winding a preliminary bunch of yarn or thread on the barrel of a 5 weft bobbin in such a machine.

Such preliminary bunches of yarn are useful on weft bobbins which are used in automatic looms,

where the replacementof substantially exhausted bobbins is controlled by the coaction of a detect- 1 ing element or feeler with the weft on the bobbin.

The provision of a substantial initial bunch of weft yarn on the barrel of the bobbin causes an abrupt change in diameter to take place when the hunch is wound off, and at which time an indiig cation of transfer is desired. By reason of this marked change in, diameter, the indication for a bobbin change is much more reliably given.

It is the general object of my invention to provide improved and simplified mechanism by which 20 a bunch of predetermined size may be wound on a bobbin and by which a shift to the regular wind will then automatically take place.

A further object of my invention is to provide convenient and effective means by which the size 25 of the bunch may be varied as desired.

My invention further relates to arrangements and combinations of parts which will be herein.- after described and more particularly pointed out in the appended claims. a

1 3o A preferred form of the invention is shown in the drawings, in which Fig. 1 is a partial side elevation of a spinning frame embodying my improvements;

Fig. 2 is a sectional end elevation, taken substantially along the line 2-2 in Fig. 1;

Fig. 3 is a partial sectional side elevation, taken substantially along the line 3-3 in Fig. 2;

Fig. 4 is a detail elevation, looking in the direction of the arrow 4 in Fig. 3 and Fig. 5 is a view of a bobbin with a bunch wound thereon.

Referring to the drawings, I have shown portions of a spinning frame including an end frame member ID (Fig. 1), a fixed ring rail II and a 5 plurality of spindles 12 mounted on a vertically movable spindle rail l4.

The spindle rails 14 at the opposite sides of the spinning frame are slidable on vertical guide rods 16 and are secured to cross members or supports l8 (Fig. 2) connected by hooks l9 and belts 20 to pulleys 2| and 22, the belts being secured to the peripheries of the pulleys and being adapted to be wound thereon. The pulleys are rotatable about fixed axes. 55 A chain 24 has one end thereof secured by a screw 25 to the pulley 2| and the chain is wrapped partiallyaround the pulley. From the top of the pulley 2| the chain 24 extends crosswise of the machine and under and around the pulley 22, ,asindicated in Fig. 2. The end of the 5 chain 24 is then brought downward over and arounda third pulley. 25, to which it is secured at 26. The chain 24 may also be secured to the pulley 22 by a screw 21.

A second chain 30-has itsupper end passed around a. slightly larger portion of the pulley 25 and is secured thereto by a screw 32. At its lower end-the chain 30 passes partially around a pulley 33, to which it is secured by a screw 34. The

pulley 33 is mounted on a stud or cross shaft 35 in a builder lever 351which swings about a fixed pivot 31 supported by the frame 10. The pulley 33.15 provided with a worm wheel 38 engaged by a worm' 39 rotatably mounted on a shaft til in thebuilder lever33, which shaft has a pick wheel 4fllat itsouter end.

A pick lever 41. (Fig. l) is loosely mounted to swing about the axis of the worm wheel shaft 39 andpickwheel 4i], and the lever 4| is provided with a pawl 42 engaging the ratchet wheel 43.

As the builder lever moves upward, the lever 41 and pawl 42 swing downward on their idle return stroke, and as the builder lever thereafter moves ,downwardfthe lever 4| is engaged by a stop pin and accordingly swings in a clockwise direction to advance the ratchet wheel 40 and worm wheel 39 and thus gradually lower the cross members l8, spindle rails I4 and spindles l2 relatively tofthe fixed ringrails ll.

For a morecomplete description of this mechanism for graduallylowering the spindle rails, reference is made to the prior patent to Kooistra No. 1,926,390, issuedSeptember 12, 1936.

My present invention relates toimproved devices for varying and controlling the traverse or swing of the builder lever 36, thus causing a bunch to be wound on the bobbins B supported by the spindles 12. The approximate size and desired location of the bunch is indicated at A in Fig-5, with the. dotted lines a indicating the size and shape of the fully wound bobbin.

A regular builder cam 44 (Fig. 3) is keyed to a camshaft 45 rotatable'in a bearing 45 on the end frame member ill, and said cam engages an elongatedcam roll 41 rotatably mounted in the 5 upper part of the builder lever 36.

The cam shaft'45 may be provided with a gear .48 (Fig. 1) forming part of a driving gear train of the type common in spinning and twist- .ing machines, and through which gear train the shaft 45 and cam 44 are continuously rotated at a uniform speed.

A second or auxiliary cam (Fig. 3) is loose on the cam shaft 45 but is held from axial movement thereon by a locking ring 5|. A series of clutch teeth 52 are formed on the end of the hub 53 of the cam 50, and a similar series of clutch teeth 54 are formed on the adjacent end of a clutch collar 55 which is keyed to the cam shaft 45 but is free to slide on said shaft, except as outward sliding movement is limited by a collar 56. r

The clutch collar 55 is grooved to receive pins in the forked lower ends of a yoke arm mounted on a rock shaft 6| (Fig. 2). supp rted inabearing bracket 62. rock shaft 6| and extends horizontally therefrom. A handle 66 (Fig. 1) is also secured to the rock shaft 6| and constitutes means by which the clutch, teeth 52 and 54 may be engaged. A spring 61 normally draws the arm 63 downward and tends to separate the clutchteeth.

Alatch lO (Figs. 2' and 4) is; pivoted at II on the bracket 62' and has a hook-shaped lower end adapted to underlie and support the arm 63. and to hold the clutch teeth in engagement. A cord or chain 14 (Fig. 2) extends down through a hole 15 (Fig. 3) in an upward extension 16 of the latch H1 and, also extends around a guide pulley 11 mounted on the bracket 62. The lower end of the cord 14 extends through a hole 18 in the web of, the cam 50, near the hub 53, and may be secured to the opposite face of the web as by a screw 79. V

The upper end, of the cord T4- extends around a second guide pulley 80 andis. provided with a weight W. A sleeve or bushing 8| may be, secured to the cord. 14 at any desired point by a clamping screw 82. 7

Having described the details of construction of my improved bunch building mechanism, I will now describe the operation thereof.

When the time comes for dotting, the operator will stop the frame, with the builder lever 36 substantially in its lowest position, with the cam roll, 41 engaging the regular cam, 44 substantially at its toe or point of greatest radius, as indicated in Fig. 2. The operator will then. wind up the spindle rails by applying a wrench to the worm shaft 39 (Fig. 2) and rotating the pulley 33 in an anti-clockwise direction. The operator then swings the lever 66 (Fig. 1). to; the left, thus moving the clutch collar 55. to the right and causing the clutch teeth to become engaged. At the same time, the arm 63 is. swung upward and is caught by the latch 10, as indicated in Fig. 4.

When the machine is then placed in operation, the

cams

44 and 50 will rotate together and substantially in the relation shown in Fig, 2. As the cam roll 41 underlies both cams, the lever will be positioned by whichever camis of greatest radius at a given point, and consequently there will be two shorttrayerses ofthe builder lever 36, and spindle rail I4 for each revolution of. the cam shaft, instead, ofthe usual single, long traverse, and this operation Will continue. as long as the arm 63 is held upward by the latch 10.

Rotation of the cam 56,, however, causes the cord 14 to be wound aroundv the hub 53 of the cam 50, thus drawing thesleeve. or bushing 8| progressively toward the upward extension 16 of the latch 10.

When, the bushing engages the part, 16, the latch, is withdrawn, thelever 63, is released and the clutch collar 55 moved to the left releasing An arm 63 (Fig. 3) is secured to the the cam 50. The bushing should be so located on the cord or chain .14 that the latch will be withdrawn when the cam 44 is engaged by the cam roll 41. The weight W then returns the cam 50 to the initial position indicated in Figure 3, with its shortest radius or heel at the bottom, in which position. it will not be at any time engaged by the cam roll 41 during the regular wind, as the heel of the regular cam is of greater radius than the heel of the auxiliary cam. The winding of the bobbin thereafter proceeds under the control of the regular cam 44 in the usual way.

By adjusting the position of the sleeve 8| on the cord 14, the size of the bunch A on the bobbin B may be increased or decreased as desired.

It will thus appear that I have provided an extremely simple mechanism for winding a bunch of any desired size on a weft bobbin, and for automatically restoring regular traverse when the desired bunch is attained.

While I have described my invention as applied to a spinning frame having a movable spindle rail, it will be understood that the invention is equally adaptable to spinning frames having a movable ring rail, and to spinning frames having both a movable spindle rail and a movable ring rail.

Having thus described my invention and the advantages thereof, I do not wish to be limited tothe details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. In a builder motion, a builder lever and roll, a regular builder cam fixed to a continuously rotated shaft, an auxiliary cam normally loose on said shaft, means to connect said auxiliary cam to rotate with said regular cam to wind a bunch, means to disconnect said auxiliary cam, and separate means additional to said shaft effective to rotate said auxiliary cam to a predetermined' initial angular position when released and to hold said cam in said position and out of contact with said builder lever and roll.

2. In a builder motion, a regular builder cam fixed to a continuously rotated shaft, an auxiliary cam normally loose on said shaft but rotatable in a fixed plane, a builder lever and roll coacting with said cams, means to connect said auxiliary cam to rotate with said regular cam to wind a bunch, means to disconnect said auxiliary cam, and separate means additional to said shaft effective to return said auxili'ary cam to a predetermined initial angular position when released, in which position the toe of said auxiliary cam is remote from said lever and roll, and to hold said cam in said position.

3. In a builder motion, a regular builder cam, means to continuously rotate said cam, a normally stationary auxiliary cam, both of said cams rotating in fixed planes, manual means to connect said auxiliary cam to rotate with said regular cam to wind a bunch, a builder lever having a portion normally engaged by said regular cam but alternately engageable by both cams when said cams are rotated together, and automatic means to disconnect and stop said auxiliary cam when a bunch of predetermined size has been wound, and said latter means comprising a member manually' adjustable to determine the size of the bunch.

4. In a builder motion, a regular builder cam fixed to a continuously rotated shaft, an auxiliary cam normally loose on said shaft, means to connect said auxiliary cam to rotate with said regular cam to wind. a bunch, a flexible, member connected to said auxiliary cam and windconnected to said auxiliary cam and windable on the hub of said auxiliary cam when said cam is rotated, an abutment on said flexible memher, a release device for said auxiliary cam engageable by said abutment, and a weight on said flexible member efiective to return said member and auxiliary cam to initial position when released by said device.

WALTER J. JACQUES.