US2025881A - Method and means for reworking textile rings - Google Patents

Description

Dec. 31, 1935'. c. R. McGHEE ET AL I 2,025,881 I METHOD AND MEANS FOR REWORKING TEXTILE RINGS Filed May 13, 1935 3 Sheets-Sheet .l

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CHA RLESV E. M GHEE AND Bram/7W GossE-rT 1935- c. R. MOGHEE ET AL 2,

METHOD AND MEANS FOR REWORKING TEXTILE RINGS Filed May 13, I935 3 Sheets-Sheet 2 R 1 g Q Q E g gnucm tor Sl 5 CHHRLES R MQGHEE g AND BRYHHTW (305.5577

GUM/mm Dec. 31, 1935. c, R, MCGHEE ET AL 2,025,881

METHOD AND.MEANS FOR REWORKING TEXTILE RINGS Filed May 13, 1955 3 Sheets-Sheet 5 E kg I N CHnRLs's/Q MQGHEE AND BRYA W G 0555 TT 3% Max:

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Patented Dec.-3l, 19 5 g 2,025,881

UNITED STATES PATENT oFFlcE' METHOD AND MEANS FOR REWORKING TEXTILE RINGS Charles R. McGhee and Bryant W. Gossett,

- Gasto Application May 13, 1935, Serial No. 21,208

12 Claims. (Cl. 51-103) This invention relates to a method and means Figure .1 is a plan view of an ordinary lathe for re-working worn spinning and twisting rings, with the invention applied thereto; and more especially .to a device in which the Figure'2 isa transverse sectional viewtaken spinning or twisting ring is mounted for rotation along the line 22 in Figure 1;

while a grinding means engages the worn por- Figure 3 is an elevation looking at the central 5 tion of the ring and grinds these portions so as p rtion of Figure 1 and showing the m ans I01 to present an even wearing surface for the limiting the longitudinal movement of the grindtraveler. ing means when said means is in an operative Heretofore, spinning rings have been used P i n;

until the inside portion of the flanges thereof ure 4 i a Section l pl n View aken along 10 have been worn or scarred by the traveler until line H in ur these flanges were so rough that they could no Figure 4A is a sec ional V w ken lon line longer be used in spinning and twisting yarns. in re 4;

It then became necessary to discard this old ring Figure 5 is awview Similar o the e t al D and insert a new ring, thus causing a great extion of Figure 4.- but sho'wing'the finishing means 15 pense in the up-keep of the spinning or twisting in Operation ad of the in ng m ns; .machinery. since many of the rings, after havure 6 s an n arged elevation showing the ing been slightly oval or elliptical it'has finishing a d the rinding means;

been impossible for the methods heretofore pro- Fi 7 is a Sectional w r h p in vided to refinish these rings properly, It is ring witha traveler mounted thereon, said spin- 20 evident that when a ring, which is not absolutely s ring being moun ed in a conventional spincircular, is mounted for rotation and a fixed 11mg framel 4 grinding tool is applied to the portions of this Referring more cifi y to the drawin s, ring, th t during th t ti of t m t the numerals l0 and II denote the longitudinal surfaces will be cut deeper than others. If all ,traokways for the lathe upon which are slidably 25 of the used spinning or t i t rings were mounted base members l2 and I3, respectively: solutely circulan'then the refinishing of the worn Member's l2 and I3 are connected to each other portions of the flanges ld h a very simple by-means of a cross piece I, and upon this cross matter, since as a t circular ring t t piece is slidably mounted a carriage l5 having 80 every porti0n of the ring will assume the am bearings I6 and I! mounted thereon which roposition with respect to its axis of rotation. tatably S p rt a haft l8. Shaft l8 has a V- It therefore, anobject of this invention to shaped u le I9 fixedly mounted on pon a provide a. means for mounting a, worn spinning which a belt 20 is mounted. This belt 20 is also or twisting ring hich may t be absolutely mounted on a motor pulley 2| mounted on motor m and rotating t ring so t t point shaft 22 of motor 23, said motor 23 being secured 35 of application of the grinding tool to the rin to bars 24 and 25 which are mounted on carwill remain in exactly the same position with t relation to all portions of the periphery of t The carriage l5 has a bolt 30 threadably sering. cured therein which extends forwardly toward the It is a fin-flier object of this invention to proobserver in Figure 1, a d projects throu h a 40 id a machine in which t wom spinning or suitable hole in projection Ila extending up from t t ring is mounted and means for grinding cross piece l4. -Bolt 3|! has suitable nuts 30a on the worn flanges thereof uniformly with relation the f thereof wmqh limit the movement 01' the to the periphery the ring, a second means for carnage l5v when it is moved transversely of the rougmy fi i h g both of these flanges simu1 lathe by means of the conventional operating 45 crank 3|. It is seen that as crank 3! is turned zg E aspect each that carriage l5, motor 23 and the shaft 3 are 3 g a. 33:? ii means for moved backwardly or forwardly transversely of Y ge o and the machine, thereby moving the operating end of tatlng 1t iniordel: that a finer abrasive may polish shaft to the proper position fimshf 3? m finished a By moving the nuts 30a upwardly on the bolts 0111B 0 e 0 leafs h Invention having 30, the movement, away from the observer, 01' been stated, her oblects W111 appear as the carriage I5 is reduced accordingly. Thereby, by serlptlen Proceeds, when taken in connection with manipulating these nuts 300. it is evident that the accompanying drawings, in which: the proper location 01 the grinding tools on the end of shaft l8 may be obtained for any particular job.

The carriage l5 and the base members l2 and |3 are moved longitudinally of the trackways I and I by the conventional hand wheel 32, and by turning this-wheel the shaft |8 and its-associated parts will be moved longitudinally of the trackways l0 and II. The structure thus far is conventional with the exception of members 38 and 30a, but it is deemed necessary to show this much of the old structure in order to more clearly disclose our invention.

Shaft l8 has fixedly mounted thereon an abrading or grinding wheel 33 which has inclined surfaces 33a and 33b to conform to the inside portion of the flanges of a spinning ring and which engages these flanges and grinds them down to a smooth uniform surface. Shaft |8 also has a wheel 34 fixedly secured thereon having grooves 35 and 38 thereon which conform to the flanges of the spinning ring and which engages all of the internal surfaces at the same time and finishes the ring off so as to have the surface in position for placing a final polish on it. This wheel is of metal form and charged with diamond dust so that it will be very effective as a grinding and finishing tool. This wheel 34 is brought into action after wheel 33 has ground off the rough surfaces. Y

The shape of wheels 33 and 34 will be designed to conform to the peculiar shape of the ring being finished.

The other end of the lathe has mounted thereon support 31 on which is mounted chuck 38, and secured in the face of chuck 88 is a stud bolt 40 having rotatably mounted thereon a grooved pulley 4| which is integral with a gear 42. Meshing with gear 42 is a worm 43 mounted on the end of shaft 44, said shaft 44 being mounted for rotation in bearing 45 which is secured to the face of chuck 38.

A pulley 46 is also mounted on shaft 44 and has mounted thereon a belt 41 which is also mounted on the motor pulley 48. Pulley 48 is fixedly secured on shaft 49 of electric motor 58.

It is seen that as the motor shaft 49 rotates that motion will likewise be imparted to shaft 44 to cause the pinion 42 and the groove pulley 4| to rotate.

Fixedly secured to the chuck 38 is another member which has slidably mounted therein a rod or shaft 52 which has a restricted portion 53 on the left-hand end thereof, (Fig. 2), around which a compression spring 54 is mounted. The left-hand end of member 5| is closed and restricts the movement of the spring 54 in that direction, and the other end of the spring engages the end of rod 52 to normally force it to the right in Figure 2.

The left-hand end of restricted portion 53 has a knob or stop 53a thereon to limit the movement of shaft 52 and its associated parts to the right under the force of spring 54. Pivotally secured to the ends of shaft 52 by any suitable means such as bolt 51, are plate members 55 and 55. Between members 55 and 58 are two other grooved pulleys 58 and 59, which pulleys are rotatably mounted on bushings 80a which are disposed on bolts 88 and 8| respectively, (Fig. 4A) which penetrate slots 82 and 83 in members 55 and 58. By providing these slots it is evident that relative adjustment of grooved pulleys 58 and 59 with respect to each other, can be made in order to accommodate different sized rings. Itwill be noted that rollers 58 and 59 are so mountedthat axial movement of the same is permitted. This is necessary when abrading a warped annular workpiece. The abrading tool 34 exerts pressure on the workpiece and holds it against the fixed grooved roller and therefore, if the workpiece is 5 warped out of a common plane, the rollers 58 and 59 are allowed to be moved axially on their bushings 88a and thus both flanges of the workpiece are allowed to engage the fixed roller and thereby the workpiece, at the point of abrading, remains 1 in a constant longitudinal plane. Were it not for this feature of end play of the rollers 58 and ,59, a warped workpiece would be cut deeper near one edge than at the other.

A worn ring 84 is adapted to be placed between pulleys 4|, 58 and 59 in the same manner as shown in Figure 2 and rotated by means of the grooved pulley 4|. When it is in this position it is evident that the point where the ring 84 engages the grooved pulley 4|, will remain fixed at all times regardless of whether the ring is a circular ring or whether it is elliptical or oval or non-circular.

The pulleys 58 and 59 will be allowed to move back and forth transversely of the machine under the compression of spring 54 if the ring is not absolutely true, therefore, since the point of contact of ring 84 with grooved pulley 4| remains the same at all times during the rotation of the ring, the proper place for grinding the worn sur- 0 faces of this ring should be at this point because there would be no variation in the amount of metal ground off of the ring with relation to the periphery thereof.

When the ring 84 is in this position (Fig. 2), the handle or crank 3| is turned so that the members 33 and 34 will pass to the inside of the ring when the wheel 32 is operated to move these members longitudinally of the machine. In this manner the grinding tool 33 is brought to a position as shown in Figure 4, whereit will engage the inside flange of the ring 84 and grind it the desired amount. v

In order that the amount of grinding will be uniform on both flanges, a stop is provided (Figs. 5 2 and 3) which comprises a block 88 which is secured to trackway l8 by any suitable means such as a stud bolt 81 and clamping member 88 which firmly clamps block 88 to the trackway. Pivotally secured on the upper end of block 68 as at 89, is a member 18 having projections 18a and 18b projecting from the lower side thereof in which set screws 1| and 12 are threadably mounted. By referring to Figure 3, it is seen how these set screws are positioned in order to limit the longitudinal movement of the carriage |5 and the grinding tool 33 with relation to the inside flanges of the ring 84. When the grinding tool 33 has been moved so that it will be disposed between the two inside flanges of the ring 84 the member I8 is moved from the position shown in Figure 2 to the position shown in Figure 3 so that the set screws II and 12 will be disposed on opposed sides of bracket 14 which is secured to'base member l2.

.When this member is disposed in this position it i-is evident that only a limited movement can take place in either direction and if it is properly adjusted the exact amount will be ground off of each flange of the ring. It should also be noted that the shaft 52 is so mounted that a certain amount of axial movement will be allowed to this shaft should the ring not be absolutely true with respect to its transverse axis, that is. should certain portions of the top and bottom 7;.

surfaces of the ring be slightly warped. This afiords means for firmly engaging the ring at three points at all times regardless of whether it is true with respect to its longitudinal or its transverse axis.

While grinding a ring it is necessary that a suitable cooling solution be applied thereto in order to prevent the ring from becoming heated and losing its temper. Therefore, a suitable reservoir 15 is provided between'the trackways I and II having a cooling solution 16 which is drawn through pipe "I'l into ump I8 and from pump 18 through pipe 19, va e 80 and another pipe 8i which is so disposed that the fluid will be conducted to the ring 64 in order to cool the same while it is being ground.

Pump I8 is driven by a suitable pulley 82 which is secured on the end of the pump shaft and has mounted thereon a belt 83 which belt is also mounted on a second pulley 84 on shaft 44. As the motor turns to impart the power to the grooved pulley 4| and its associated parts, it likewise imparts power to the pump 18 to supply the cooling fluid I6 to the ring as it is being ground.

Figure 7 shows a sectional view through a portion of spinning frame 86 which has a ring holder 81 mounted therein. In the upper end of the ring holder is mounted the spinning rin 64 which has a traveler Glb mounted thereon which is adapted to travel around the ring as the yarn is being twisted. As this traveler is turning around at a very high speed, the interior portion 640 will become worn, and after the wear has become excessive, it is necessary to turn the ring over and place the-traveler on the other 1 flange. It is then used in this manner until the flange 64d becomes worn. At this time the ring is placed in the apparatus just described, and reground to form a'flnished appearance on the inside surfaces 640 and d.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are em ployed, they are used in a generic and descriptive sense only, and not for purposes of limita-- tion, the scope of the invention being set forth in the appended claims.

We claim:

1. Means for performing an abrading operation on the interior surface of an annular member comprising a roller having a V-shaped groove in its periphery and mounted for rotation at a work piece, and means for moving said tool against the interior surface of said annular member while the same is rotating.

2. Means for performing an abrading operation on an annular work piece comprising three rollers having V-shaped grooves in their peripheries, means for driving one of the rollers, means for .pivotally and resiliently mounting the other two rollers for rotation, means for pressing said pivotally mounted rollers towards the other roller to hold the work piece between the rollers, a rotary abrading tool insertable into said work piece and means for moving the tool laterally against the interior surface of the work piece. l

3. Means for performing an abrading operation on the interior surface of an annular work piece comprising three V -rollers mounted for rotation in the same plane and being spaced from each other, means for mounting one of the rollers for rotation at a fixed point, a pivoted member for supporting the other two rollers, means normally pressing the-pivoted member and 10 its rollers towards the first named roller to hold the work piece between the rollers, means for driving one of the rollers, a rotary abrading tool insertable within the work piece, and means for moving the tool laterally against the interior of the work piece.

4. Means for performing an-abrading operation on'the interior surface of an annular work piece comprising three rollers mounted for rotation in substantially the same plane and being spaced from each other,.a pivoted member for supporting two of the rollers in spaced relation to the third roller, means normally pressing the pivoted member and its rollers towards-the third roller to hold the work piece between the three rollers, means for driving one of the rollers, a rotary abrading tool, a movable mounting for the abrading tool, and means for moving the tool laterally against the interior surface of the work piece and towards the third roller.

5. Means for performing an abrading operation on the interior surface of a non-circular annular member to cut the member to a uniform thickness at all points, comprising means for holding the member and rotating thesame including a roller 85 having a V-shaped groove in its periphery, a member movaby mounted with relation to the roller,'a pair of rollers mounted in said member and each having a V-shaped groove in its periphery, resilient means normally pressing said 40 pair of rollers towards the first roller to hold the annular work piece in position between said three rollers, means for imparting rotation to one of the rollers to impart rotation to the annular work piece, a rotary abrading tool, amovable mounting for said tool, means for moving said mounting to place the tool into said annular workpiece, and means for moving said tool against the interior surface of said annular member while .the same is rotating.

6. Means for performing an abrading operation on the interior surface of a non-circular annularmember to cut the member to a uniform thickness at all points, comprising means for holding the member and rotating the same, ineluding a roller having a v-shaped groove in its periphery, a member movably mounted with relation to the roller, a pair .of other rollers mounted in said member and each having a V-shaped groove in its .periphery, resilient means normally pressing said pair of rollers towards the first roller to hold the annular workpiece in position between said three rollers, means allowing individual axial movement in each of the pair of rollers along the longitudinalaxis of the annular member, means for imparting rotation to one of the rollers to impart rotation to the annular work piece, a rotary abrading tool, and means for moving said tool against the interior surface of said annular member while the same is rotating.

7. Means for performing an abrading operation on an annular work piece comprising three rollers having v-shaped grooves in their peripheries, means for driving one of. the rollers, means for resiliently mounting the other two rollers forro- I5 rotation at a fixed point, a pair of other V-rollers tation to press them into engagement with the exterior of the work piece at all times, a rotary abrading tool and means for moving the tool laterally against the interior surface of the work piece. I

8. In apparatus for internally grinding a noncircular annular work piece, means for holding the workpiece comprising a V-roller mounted for mounted for movement towards and away from the first roller, means normally urging each of the pair of rollers into engagement with the exterior of the work piece, means for. driving one of the rollers, the pair of rollers being movable towards and away from" the first roller by the variations from a true circle in the outer surface of the work piece, and the pair of rollers being movable longitudinally of the axis of the work piece by the variations from a common plane of portions of the work piece.

9. Means for performing an abrading Deration on the interior surface of an annular work piece comprising three grooved rollers whose peripheral grooves have diverging side walls and being mounted for rotation in the same plane and'being spaced-from each other, a movable member for supporting two of the rollers, means allowing individual axial movement of each of said two rollers, means normally pressing the movable member and its rollers towards the work piece to hold the work piece between the rollers, means for driving one-of the rollers, a rotary abrading tool insertable within the work piece and means for moving the tool laterally again the interior of the work piece. r

10. Means for performing an abrading operation on the interior of an oval shaped work piece which comprises three rollers spaced from each other and engaging the work piece at three points, one of the rollers being. mounted for rotation at a fixed point and the other two rollers being mounted for'rotation on a movable support, means for driving one of the rollers to impart rotation to the work piece, a rotary cutting tool, means for moving the tool laterally to engage the interior surface of the work piece at its point of tangency with saidfixed roller; a laterally movable means, said movable support being pivoted at a point equidistant from the rollers to said laterally movable means to cause the 'radius of the work piece to remain substantially in alinement with the radius of the rotary tool at its point of engagement with the work piece.

11. That method of reworking oval-shaped textile rings which comprises moving by contact all points on the periphery of the ring through a fixed point and maintaining the radius through each point on the periphery of the ring in substantially the same position as each point on the periphery of the ring passes through said fixed point and performing an abrading operation on the interior surface of the ring at a point disposed on the radius through each point on the periphery of said ring as each point on the periphery of the ring passes' through said fixed point. I p

12. That method of reworking oval-shaped textile rings which comprises moving by contact, all points on the periphery of the ring through a fixedpoint and causing the tangent to each point on the periphery of. said ring to occupy substantially the same position as the point on the ring passes through said fixed point, and performing an abrading operation on the interior surface of said ring at a point disposed on the normal to

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