US1591017A

US1591017A - Polishing machine

Info

Publication number: US1591017A
Application number: US686744A
Authority: US
Inventors: William E Cook
Original assignee: PEERLESS INSULATED WIRE AND CA
Current assignee: PEERLESS INSULATED WIRE AND CA; PEERLESS INSULATED WIRE AND CABLE Co
Priority date: 1924-01-17
Filing date: 1924-01-17
Publication date: 1926-07-06
Anticipated expiration: 1943-07-06

Description

July 6,1926. 1,591,017v

W. E. COOK POLISHING MACHINE t Filed Jan. 17. 1924 55, elements.

Patented July 6, 192,6. j

IUNITED STATES l 1,591,017 iii'rsu'i4 oFFic-E. l

r WILLIAM E. COOK, ST. GEORGE, NEW YORK, ASSIGNOR TO PEERLESS INSULATED WIRE AND CABLE COMPANY, OF NEW YORK, NfAY., A CORPORATION OF DELAWARE.

POLISHING MACHINE.

Application inea January i7, 1924,. lsariaiup. 686,744.

My invention relates to polishing machines, and more particularly to a rotary machine of this type in which they polishing members will automatically adjust them# 5 selves to varying diametersy in the surface being polished, while developing substantially uniform pressure, notwithstanding such adjustment.

A machine embodying' my invention is de- Signed more particularly for polishing the outer surface of insulated wire, and is so constructed that a plurality of groups or lunits of polishing elements may be employed which will operate progressively upon every portion ofthe entire length of wire, under substantially uniform conditions or if desired, under varying conditions' as to the pressure exerted upon the wire by the polishing elements of succeed- 2O ing groups or units.

Each of 4the polishing units is composed of a plurality of elements grouped and rotatable about a common axis, each of said elements being capable of movement toward and from this axis in developing the desired pressure upon a wire passing through the machine with its axis in substantial alinel ment with that of the-axis about which each group of said-elements has movement.

i The movement of the variousv elements in adjusting themselves to a wire is entirely automatic, and the elements are free to move toward "and from the axis of the wire, in a manner to accommodate themselves to varying diameters in dierent portions of the wire,4 and yat the same time revent likelihood ofthe abrasion of the sur ace of,

or a partial stripping of the covering from the insulating body about, ythe wire.

In a machine embodying my invention, the arrangement of the polishing elements of each group or unit is such that the surface of the wire Will be polished by both a relative rotary and longitudinal movement .45 of vthe polishing elements and thef'wire, they longitudinal movement resulting vfrom the axial traverse of the wire't-lirough the3ma;.

chine and in relation to said elements. -1 The isole support'` for the wire while passing .50` througlifthe machineisk the polishing elements and erefore, it is apparent'that the arrangement, construction and. functioning of these elements? must' be, sucli` as to support the wire while itis beingl polishedby the Tofsecure the desired high capacity in the machine, the construction and arrangement of parts must be such as to permit the operationof the machine at high speed, but without likelihood of. twisting or distorting G0 the wire or disturbing the insulation thereon. The highspeed at which the machine is operated is relied upon, not only for s e-y curing the maximum` polishing action with the minimum of time, but for developing c5 that pressure required in the4 polishing operation* c In such a machine, the pressure developed may be varied by va ing the speed of rotation of the polishing elements; lor by means of adjustments in the polishing elements themselves, lso as to vary the eect of centrifugal force upon said elementsinr developing the polishing pressurei there-x through. 1

Since all of the polishing elements in their entirety are rotated at high speed or have planetary .motion about an axis coincident with the axis ofthe wire, andi/each element is capable. 'of pivotal -movement 80' about an axis parallel .with that axis, I so j' construct the machine that the only move-A j ment of 'said polishing elements with `rela-v tion to the axis about which the elements in their entiret rotate, will be this ivotal v535 movement, the supporting means orrthe elements, being held with sufficient rigidity to prevent an'y movement of the elements as a result of the distorting of this supporting means. 9

I so construct and combine the. polishing l elements of each group vor unit as to en" sure simultaneous uniforml movement of each, of these elements toward and from the axis of rotation of the group, thus ensuring the proper centering of the wire in relation". to the element-s in each group-or unit, and to adjoining groups or units orth'e simul' taneous separationof the polishing elements to acomm date these elements to.- any yi'slightlyy enlarged or reduced vportion of the wire.4 l 1 Y The invention consists primarily inI ay polishing machine embodying thereln a plurality of polishing elements, supports for said elements whereby they are ouped about a' common axis, means 'Where -y lsaid supports are rotated, and'. means operative upon -each element whereby rotation of sald ico ment to have movement toward the axis of rotation of said supports; and in such other novel'features of construction and combina- `tion `of parts as are hereinafter set forth and described, A and more particularly pointed out' in the claims hereto appended.

Referring to the drawings Fig. 1 is aside view partly in elevation and partly in section of a polishing machine embodying my invention;

Fig. 2 is a section on the line 2--2 of Fi 1, showing one of the polishing units wit the elements separated;

Fig. 3 is a similar view showing the polishing elements positioned nearer the axis about which they are grouped;

Fig. 4 is a plan view of one of the polishing units; Fig. 5 is a detail perspective view of one of the polishing elements; and

Fig. 6 is a similar View of another form of polishing element.

Like numerals refer to like parts throughout the several views. In the embodiment of my invention shown inthe drawings, 10 and 11 are end bearing housings for rotatable members 12 --and 13, one of which, as 12, carries a driving pulley 14 or other means bywhich the members 12 and 13 are rotated.

Since the members 12 and 13, and the I parts carried thereby are ydesigned to be rotated at high speed, from 1,000 to 1,500 R. P. M., ball bearings are preferably prof vided for each of these members as shown at 15 in connection with the member 12.

Extending between the members 12 and 13 are shouldered

tie yrods

16, 17 and 18 secured in position with relation to said members by meansof the nuts 19.- These tie rods act as supports for a plurality of groups or units of polishing elements arranged in parallel relation one with the yother so as to cause every portion of a wire passing through the machine to be progressively brought into the operative relation i with each of the polishing elements of each of these units. e

The tie rods 16', 17 and 18-are arranged at equal d1stances from a common center,

' which cen'tervis thefaxis'of rotation of the members12 and 13, and are spaced apart 120 in arc with relation to the rotary movement of said rods.` This arrangement is equivalent to havingthe axis of each of these rods represent the point of an equi- Iate-ral triangle.v a f' The detailed construction of each of the polishing groups or units is the same as that of the others, sovthat a descriptionv of but one unit is necessary, it being understood that 'any desired number of such units may be employed although heretofore, I

have used but six such units upon eachmachine.

Each of said units or groups, comprises three

polishing elements

20, 21 and 22, each axis about which the

rods

16, 17 and l18 are rotated, this polishing surface being of a width to bringv it into close juxtaposition to -the corresponding element of the adjoining group or unit. -The polishingsurface 23 is a substantially flat, smooth surface, which is required more particularly because different portions of thls face may become operative as determined byv the diameter of the wire being polished, or by variance in the diameter of different parts of a wire.

The surface 23 is of greater length than width, in part to provide for this change in the relation of this surface to the wire, or different wires, and in part to assist in maintaining the different elements in their desired co-operating relation, although lother mean's'are also provided for this purose. p Each e1ement20, 21 and 22 is provided with a weighted extension 24, one end of which "isconnected to itselement, and the other end of whichl extends outwardly of the axis aboutwhich theods 16, 17' and"18 are rotated, in a manner to cause this ,weighted extension to have movement as a result. of centrifugal action `developed by the rotation of the polishing unit in its entirety. Hence, while the machine is in operation, each element will have rotary movement about the axis of the wire, and

movement toward this axis so as to bring the polishing A'surface 23 thereof into engaging` relation with the wire and develop a substantially uniform continuous pressure upon the surface of the wire. This presfsure, however, -will be a yieldable pressure to the extent '.thatthe element may receive movement counter to its movement under4 the control of the extension 24,l as when an enlarged portion of the wire is encountered,

or towards the wire as a result of a' reduced with'a ring 27l so that movement of any element will, through this ring, control the quantity of movement of each of the other elements, or simultaneous movement of

theelements

20, 21 and 22 will act upon this ring in a manner to'equalize the movement of, and the pressure developed by', each of the other elements.

It is sometimes desirable to cause all of the elements to act with greater or less pressure upon the surface of the wire, yor

'to have the elements of succeeding units act with greater or less pressure. To meet this condition, I so construct the weighted' tojmove under centrifugal forcewith relation to the other part of the extension, the two parts of the extension being secured together by means of a lock screw 29 screw threaded in the extension 24 and passing through the various teeth 28. In this man- 'as a result of the hig ner there is no likelihood of the accidental separation of the two arts of the extension machine operates In the form of the invention shown in Fig. 6, the heel 25 is forked, and the dimensions of the extension 24 are such as to ermit it to have a tight lit within the for s of this heel. The extension 24 ,in this'form of the invention is provided with a sequence of openings 304 through any of which the pivot 26 is adapted to pass so that the length of the effective end of the extension may be varied to a desired extent when each'element 20, 21 or 22 is made in through the selection of the opening 30 through which the pivot is passed. This form of the invention may be utilized to vary the normal unbalanced condition of the element with greater nicetythan the form of the invention shown in Figs. l to 5, since the adjustment of the extension 24 to shorten its length will add weight to the portionof the element at the other side of therod upon which it is mounted. This Yform of the invention can also be more cheaply produced since little or no machine Work is required. l

.I have found by actual Aexperience. that one casting, the surface 23 -wears Very rapidly,i notwithstanding that the surface upon which it operates is a saturated fibrous material such as cottonbraid impregnated speed at which theV 'with Aasphalt-um lor other similar composition. The Slight hollow thus formed in the surface 23 w1ll interfere with the properl functioning of the machine. To correct vthis condition, I form the surface 23 upon a hardened late 31 having astem 32 extendin withln the body of the elementand secure in position by means of a taperedl pin 33. A tapered pln is used so asto ensurea tight fit between the plate 31 and the body ofthe element which forms the backing for this plate.

The construction of each

element

20, 21 and 22, apart from the extension 24, is such that irrespective of the position which this g element may assume, the weight'of the element will be so distributed as. to result.

ina substantially balanced condition, the weight of the extension being relied uponl for imparting the, desired movement of the surface 23 toward and into engagement with the wire and the pressure with which this surface'operate's upon the wire.

To prevent bulging or flexure of the

rods

16, 17 and 18, dueto centrifugal force 'while the machine is in operation, I pass these rods through stay plates or rings 34 ar-v ranged at spaced distances along the rods. The polishing

elements

20, 21 and-22 of each 4unit are mounted u on a shouldered bushing'35 upon the ro these bushings acting as spacers to accurately position adjacent units with relation to each other and afford vthe proper clearance for the operation of the polishing elements of each unit.

4The insulated wire being operated upon is indicated at- 36 in Figs. l and 3 of the drawings;

The operation of the herein described polishing machine Iis .substantially as fol ows:- l

When the machine is at rest, -at leastY two of the extensions 24 will have movement'to` ward the axis of rotation of the rods 16,

17 and 18, thus oscillating the

various elements

20, 21 and 22 in a manner to sepllO arate the polishing surfaces 23 thereof.

This is due to the triangular arrangement' of the pivotsl18 causing two of the weighted .portions 24a to act in opposition to the remaining weighted portions. The, ring 27 and pivots 26 will cause all ofthe elements to have this movement, since with the triangular arrangement of the

rods

16, 17 and 18', at least two of the extensions will ber acting to impart this movement, even though the. third extension-may be so po.

sit-ioned asnot to have this effect but rather a tendency to oppose su/ch a movement of the rlng.

lof the polishing elements,. clearance is af- "forded for `the passage of the insulating wire 36orotl1ermateria1'to be polished, through thefspace between these surfaces,

v With the separation of thetsurfaces I the-end of this wire being secured to a rewind reel not shown in the drawings, but

and 18 and the'various polishing elements 20, i

21 and22 of each group or unit.4 The rotary movement of these rods will `cause the extensions 24 of each element of each group or unit vto move outwardly, thus forcing' the polishing surfaces 23 of each of the elements toward the axis about which the members A12and 13 rotate.. i

Since the elements of each group or unit are connected with a ring 27, the elements of each unit will have' similar simultaneous movement which will have the effect of ac'- curately centering the wire 36 with relation to these elements.` The flat surface of thej polishing surfaces 23 will permit these suraces. to have movement across the wirewhile the wire is being thus centered. Thereafter v the continued running 5f the machine will result in the weighted extensions 24 having a constant tendency to force the polishing surfaces 23 of the elements of each group or unit toward each other, thus developing the desired polishingpressure of the surfaces 23 against the wire 36. This pressure will .remain substantially constant and uniform so longv as the machine has the same R. P. M. and irrespective of any slight changes in the f diameter of the wire as to different portions thereof, which condition is common in vinsulated wires. In fact while the polishing surfaces 23, when the machine is in operation, will automatically move into, and remain in engagement with the surface of the Wire, brother Vmaterial being polished, with the requisite pressure to give the desired finish tothe surface of this material, the polishing elements of each` unit are free to move toward or away from each other to accommodate 'themselves to Varying diameters of dif,- ferent portions of this material without any perceptible variation inthe pressure exerted bylthe surfaces 23. This flexibility, or yieldability, in the polishing mechanism will 'avoid any likelihood of abrasion of the covering material of the Wire and will prevent all possibility o-f stripping the outer surface material being finished, and yet subject the.

of the insulation, or of the covering therefor, fromthe wire. l

A plurality or sequence of polishing units are employed so as to permit a fairly rapid rate in the traverse of the wire-36 or other wire to the polishing -pressure for'a sufficient interval to. secure the desired finish. Fursure to the wire as it first enters the ma-.70

chine, with a progressive increase of this pressure, or a heavier initial pressure with the progressive lightening of the pressure as the wire progresses through the machine.

The adjustability of the length of the extensions24 permits the machine to be set for any desired pressure conditions of the various units,'and also the regulation of the pressure to accommodate thevmachine to different conditions of use.

The stayplates orl rings 34 arranged at spaced distances along the

rods

16, 17 and 18 will check any tendency of these rods to flex outwardlyas a result of the high speed of rotation of the members 12 and 13 carrying, these rods, rigidity in these rods being.

required to ensure the desired uniform action of the polishing elementsof each unit.

The surface being polished is subjected to a rapid smoothing action by perfectly fiat surfaces, which has been found to give highly efficient results. At all times there are three triangularly arranged points of contact between the wire and the polishing surfaces 23 of the elements of each unit, which points of contact will serve to adequately support the wire or other material and hold it with sufficient stability toensure the effective'rapplicationof the polishing pressure which, however, is not heavy. Y

vThe arrangement of the elements of each unit is such as to permit the escape of 'any fluff which may be .separated from the insulation of the wire, although with freshly coated wire, likelihood ofI the removing of fineparticles from the surface thereof as au result of polishing, is reduced toa minimum.

The wire after leaving the machinewill v of the length of the/extensions 24, the speed.

of. operationr of the machine will in a measure control the extent of this pressure, since the higher the speed, the greater will be the effect of centrifugal force upony these extensions and therethrough upon the polishingelements.

It is not my--intention` to limit the invention to the precisefdetails of construction shown in the accompanying drawings, it being apparent that such may be varied without departing from the spirit and scope of the inventio Having described the invention what I claim as new and desire to have protected by Letters Patent, is

1. A polishi machine embodying therein a pluralityo polishing elements, each of said elements havin a substantially lat,

1o smooth, extended sur ace presented towards grouped about a common axis, means wherey .said supports are rotated, means operative upon each element whereby rotation of said supports at high lspeed will cause said element to have movement toward the axis of rotation of said supports, and means permitting adjustmento said last named lmeans whereby the pressure resulting from movevment thereof may be increased or decreased).

' 3. A polishing machine embodying therein a plurality of polishing. elements, supports for said elements whereby they are ouped about a common axis, means where y said supports are rotated, means operative upon each element whereby rotation of said sup- 495' .or'ts at high speed will cause said element to ave movement toward the axis of rotation of said supports, and connections between said elements whereby`they will all have similar, simultaneous movement.

4. A polishing machine embodying therein a plurality of polishing elements, supports for said elements whereby they are ouped about a common axis, means lwhere yl said supports are rotated, means operative'upon each element whereby rotation of said supports at high ispeed will cause said element to have movement toward the axis of rotation of said su ports, means permitting adjustment of said last named means whereby the pressure resulting from movement thereof may be increased or decreased, and connections between said elements whereby they will all havev similar,.simultaneous movement. s

5. A olishing machine embodying therein a p urality of supports symmetrically grouped `abouta common axis, means whereby, said supports are rotated, a plurality of polishin elements respectiyely pivotally Ymounte upon one of said supports, each of ouped l ope said elements having a substantially flat,

smooth, extended surface presented towardsv the axis of rotation of sa1d elements, and a Weighted extension carried by and operative upon each element whereby rotation of said supports' at high speed will cause each of said elements to have rotativemovement about its support, and cause a portion thereof to move toward -said supports.

6. A polishing machine embodying there.

in a plurality of supports symmetrically grouped about a common axis, means whereby said supports are rotated, a plurality of polishing elements respectively pivotally mounted 'upon one of said supports, each of said elements having a substantially flat, smooth, extended surface presented towards the axis of rotation of said elements, a weighted extension carried by and operative upon each element whereby rotation of said supports at high speed will cause each of said elementsv to have rotative movement about its support, and cause a portion thereof to move toward the axisof rotation of said supports, and means whereby each of said weighted extensions may be adjusted toward 'or from the support for the element earn-ying it, to regulate the pressure develby said element. y 7. A olishing machine embodying'therein a p urality of supports symmetrically grouped about a common. axis, means whereby said supports are rotated, a plurality of" polishing elements respectively pvotally mounted upon one of said supports, la. weighted extension vcarried by 'and operative upon each element whereby rotation of' said supports at high speed will cause each of said elements to have rotative movement about its support, and cause a portion thereof to move ltoward the axis of rotation of said supports, and connections between said elements whereby they will all have similar, simultaneous movement about their sup Orts.l

a plurality of supports symmetrically grouped about a common axis, means whereby said supports arerotated, a plurality of polishing elements respectively pivotally munted upon one of said supports, a weightedextension carried by and operative upon each element whereb rotation of said supportsat high speed -wi l cause each of said elements to have rotative movement the axis of rotation of about its support, and cause a portion thereof to move toward the' axis of rotation of -said supports, means whereby each of said weighted extensions may be adj usted toward or from the support for the element-carrying it, to regulate the pressure developed by said' element, and connections-between said elements whereby they will all have similar simultaneous movement about their supports,

9. A polishing machine embodying there- 110 1 8. A polishing machine embodying t ereg ,Y

-polishing elements respectively pivotally.

mounted upon one of said supports, each of said polishing elements having a flat smooth extended polishing surface presented toward the axis of rotation of said supports, and a weighted extension carried by and operative upon each element, whereby rotation of said supports at high speed will cause each of said elements to have rotative movement about its support and cause said flat extended polishing surface to move' toward the axis of rotation of said support.

TO. A polishing machine embodying therein a -plurality of supports symmetrically grouped about a common axis, means whereby said supports are rotated,. a plurality of polishing elements respectively pivotally mounted upon one of said supports, each of said polishing elements having a flat smooth extended polishing surface presented toward the axis of rotation of-said supports, al weighted extension carried by and'operative upon each element, whereby rotation of said connections between said ring and the heels supports at high speed will cause each of said elementsy to have rotative movement about its support and cause said flat extended polishing surface to move toward the axis of rotation of said support, and means whereby each of said weighted extensions may be adjusted toward or from the support for the element carrying it, to regulate the pressure developed by said element.

11. A Apolishing machine embodying there- `in a plurality of supports symmetrically grouped about a common axis, means whereby said supports are rotated, a plurality of polishing elements respectively pivotally 'mounted upon one of said supports, each of said polishing elements having a flat ex- 'tended polishing surface presented toward the vaxis of rotation of said supports, a weighted extension carried vby and operative upon each element, whereby rotation of said supports at high speed will cause each of said elements to have rotative movement about lts support and cause said flat extended polishing surface to movetoward the axis of rotation of said support, eachof said elements having a heel extending radially of its support, a ring concentric with the axis of rotation of said supports, and pivotal of said elements respectively, whereby said f elements are caused to have similar, simultaneous movement.

v 12. A polishing machine embodyingtherein a plurality of supports symmetrically grouped about a common axis, means whereby said supports are rotated, a plurality of polishing elements respectively pivotally mounted upon one of said supports, each of said olishing elements having a fiat' extende polishing surface presented toward the axis of rotation of said supports, a weighted extension carried by and operative upon each element, whereby rotation of said supports at high speed ywill cause each of said elements, to have rotative movement about nectionsV between said ring and the heels ofv said elements respectively, whereby lsaid ele-` ments are causedto have similar, simultaneous movement.

13. A polishing machine embodying therein a plurality of supporting rods symmetrically groupedabout a common axis, means whereby said rods are rotated, a plurality of polishing units arranged to act successively upon the material being polished each consisting of a plurality of polishing elements, each of said elements havin a substantially fiat, smooth, extended sur ace presented towards the axis of rotation of said elements' respectively pivotally mountedn upon one of said rods, and a weighted extension carried byand operative upon each element, whereby rotation of said rods about, ta common axis and at high speed, will cause each of said elements to have rotative movement about its rod, and cause a portion thereof to move toward the axis of rotation of. said rods.

14. A polishing machine embodying therein a plurality of supporting rods symmetrically grouped about a common ax1s, means whereby said rods are rotated, a plurality of polishing units each consisting of a plurality of polishing elements respectively pivotally mounted upon one of said rods, each of said polishing elements having a flat extended surface presented toward the axis of rotation of said rods, a weighted extension carried by and operative upon -each element, whereby rotation of'said rods about a common axis and at high speed,. l

will cause each of said elements to have rotatlve movement about its rod, and cause a v portion thereof to move toward the axis of rotation of said rods, means whereby each of said weighted extensions may be adjusted toward or from the rod upon which the element carrying it is mounted, to regulate the pressure developed by saidtelement, each lof said 'elements having a vheel extending radially of its rod, a ring concentric with "the axis of rotation of said rods, and pivotal connectlons` between said ring. and the heels isy ' therein a plurality of `supporting rods symmetrically grouped about a common axis,

. means whereby said rods are rotated, a plurality of polishing units each consisting of a plurality of polishing elements respectively pivotally mounted upon one of said rods, each of said polishing elements having a flat extended surface presented toward the axis of rotation of said rods, a weighted extension carried by and operative upon each element, whereby rotation of said rods about a common axis and at high speed, will cause each of said elements to have rotative movement about its rod, and cause a portion thereof to move toward the axis of-rotation of said rods, means whereby eachof said weighted extensions may be adjusted toward or from the rod upon which the element Acarrying it is mounted, to regulate the pressure developed by said element, each of said elements having a heel extending radially of its rod, a ring concentric with the axis of rotation of said rods, pivotal connections between said ring and the heels of said elements respectively, whereby said elements are caused to have similar, simultaneous movement, and stay plates reinforcin said rods intermediate the ends thereo and between some of said units, whereby lexure of said rods is prevented.

16. A polishing machine embodying therein oppositely disposed bearing housings, members rotatably mounted in said housings, a plurality of supporting tie rods extending between said members and symmetrically grouped about a common axis, means whereby said rods are, rotated, a plurality of polishing units each consisting of l a plurali-ty of polishing elements respectively pivotally mounted upon one df said rods, each of said polishing elements having a lat extended surface presented toward the axis of rotation of said rods, a weighted extension carried by and operative upon each element, whereby rotation of said rods about a common axis and at high speed, will cause each of said elements to have rotative movement about its rod, and cause a portion thereof to move toward the axis of rotation of said rods, means whereby eachl of said weighted extensions may be adjusted toward or from the rod upon which the element carrying it is mounted, to regulate the pressure developed by said element, each of said elements having a heel extending radially of its rod, a ring concentric with the axis of rotation of said rods,pivotal connections between saidring and the heels of said elements respectively, whereby said elements are caused to have similar, simul taneous movement, and'stay plates reinforcing said rods intermediate the ends thereof and between some of said units, whereby flexure of said rods is prevented.

In witness whereof I have hereunto affixed my signature this 9th day of January,

WILLIAM E. COOK.