US2325504A - Belt wrapper guard - Google Patents

Description

A. c. GolNs 2,325,504 BELT WRAPPER GUAR Filed Jan. 7. 1942 2 shets-sheet 1 July 27, 1943.

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mvENToR C gom/s s o/wey 41. FP50 y July 27, 1943. A. c. GolNs BELT WRAPPER GUARD Filed Jan. 7, 1942 2 sheets-sheet 2 INVENTOR ,L FRED Patented July 27, i943 2,325,5041 rBELT-VVRAPII'EE',GUARDVv 4 Afrl Q Scies. Gary, 1nd-, assista? t0 Cariiegie- Illinois steelorporatinpa corporation New Jersey Application January 7, 1942, sceiarneizaeec, f v s v'z claims. (o1. ,2425731 This invention relates to guards and, particu-V larly, to an improved automatic yguard or meansfor protecting the belts of belt wrapper apparatus.

In the steel industry, itis the general practice to provide a winding reel' on thefexit or delivery side of rolling mills for rolling sheet material for the purpose of rewinding the reduced strip intoyacoil under tension as the material is delivered from the Work rolls of the mill. The mandrel portion of the reel is usually cylindricalin shape and made of a plurality of segments which are, capable of being expanded and contracted,V whereby the diameter of the reel'may Ice-varied so as to facilitate removal of the coil therefrom after reeling.

At times, a belt wrapper device or apparatus is utilized for the purpose of starting the'initial convolutions of the strip around the mandrel." Such a device is usually located at a point directly opposite the reeling mechanism and consists gen'- erally of a pair of spaced apart endless belts'a-r-g ranged substantially parallel to each Votherfn. aV movable carriage. The belts areY arranged around a, plurality of idle rolls.. When the strip isto bey started around the mandrel of thereel, the can' riage of the belt Wrapper, together with the beltsr carried thereby, is'moved to position directly next" to the reeling mechanism `so thatV the belts are disposed circumierentially'and partially aroundthe mandrel thereof.4 The exiting end of the strip,` is then inserted between the belts and vthe man- 1 drel. The mandrel is then rotated and the belts guide the exit end of the strip around the mandrel so as to wrap the same sufiiciently tight to form the initial "convolutions of the coil. Afterv several convolutions of thelstrip have been wrapped around theimandrehthe belt Wrappermechanism is moved'to a retracted position away from the reeling mechanism with tliebelts there',- of moving away from orderA tov l 'the v'mandrel and out` contact with th'esame.` The rolling ofthe strip- After the rolling cf vthe strip has .beencomf pleted, the tailend of the strip, upon leaving the rolls of the mill, tends to be whipped overt the'lreeling mandrel, due to the rotation thereof` andthe tension applied lto thestrip thereby,v

causing the extreme tail end of the strip to strike the belts of the belt Wrapper mechanism, which are positioned directlyV opposite vtheretojvvith la terrific; force or `blowl,'which resul-ts oitentirriesj- :in damaging or 'completely severing the belts.

-' tenance oi 'these belts istedious and expensive.

ItV isY toV a'guard or :means for protecting these belts from this whipping action of the tail end of. the strip that the present invention relates.

Accordinglydt is the general objectof the presentxinventionto provide `a guard or meansV for protectinglthebeltsof a belt wrapper mechanism otheclass described which eiectively and efciently protects the belts thereof against the whipping action, ofthe tail end of the strip as it is, delivered' from the rolling mill so as to eliminate the danger of anydamage thereto and to reduce themaintenance costs .thereof to a mini- VIt is @Rather object ofthe invention to provide an improved; guard for means forfprotecting the belts of, a jihelt-wrappcr mechanism of the-class described, whch-visfsmple and nexpensmel in tsfcenstructon and use. and a guard which will not interfere. with, the Iflor-rml operation of the belt Wrapper., y n

It, a further object cithis:invention.l to provide` an improved guard or, means-V fcr protecting the belts of a Vbelt wrapper mechanism or the class describedl which4 .is automatically moved,V lto @necesiten awayffromfthe'belts so as to permit there@ ihefeflf, and autematically moved toenotljier position-adjacent the belts so as to protect the improved guard with a retracted. position andv not in use;

Figure 3 is an enlarged similar view showing belts of the, belt wrapper when the sameis in its the guardia. the position it will assume away from the belts of thebelt wrapper when the same4 isipjus; and

. igual?'fi-. is` all enlarged plan view of one side Ofin! mPrOYefl sueld.-l Y

mill with which it is adapted to be used, and atV a point directly beyond the mechanism for reeling the strip material as it is delivered from the mill. There is mounted on the base 2 a carriage 3 for reciprocal movement away from and toward Y the mill and reeling mechanism, The carriage 3 has arranged therewith a plurality of wheels# which are disposed on a pair of spaced apart tracks or guide members 5 carried by the base 2. On the inner end of the carriage 3, directly opposite the reeling mechanism, there are arranged usually two sets of spaced apart yoke-like portions 3. vEach of these sets consists 0f a pair of yoke-like portions having a plurality of idle rollers I arranged therebetween. Immediately rearwardly ofY eachl set of yoke-like'portions 6 there is arranged an idle roller 8 which is mounted on thelupper end of an upwardly extending arm-like member 9,'with the lower end of the arm-like member pivotally attached to the 'carriage 3 as at I3. Intermediate the length of the arm-like member `9 there is pivotally attached thereto a rearwardly extending Ycrank arm I2 which extendsthrough a housing portion. I3 mounted on the'carriage 3 and which has adjusting nuts I4 arranged on the extreme end thereof. There is mounted within the housing `I 3.around the crank arm I2 a coil spring I5 for a purpose hereinafter `to be described. On the lower arm of each set of the yoke-like portions 6 at the forward end of the carriage, there is arranged a pair of spaced apart arm-like members I6 which are pivotally attachedl to the lower arm of the yoke-likeportions, as at I'I.v Between each pair of arm-like portions 'I5 and at the outer end thereof, there ismounted .an idle rollerI. There is arranged between' the yoke-like lportions 6 of each set, around the idle rollers "I, 8, and I8 thereof, an endless belt-I9, and it is to a guard or means for protecting these belts that the present invention relates. l

YAccording clearly shown in Figures 3 and 4'of the drawings, there is arranged above each of the endless wrapper belts I9 an angularly extending plate-like guard member 2D having a pair of spaced apart downwardlyY extending arms 2l arranged therewith, With'one arranged at each side of the guard.

The arms 2| extend preferably downwardly along the outer sides of the belts I8 and the yoke-like portions, with thel lower ends thereof being pivotally attached to the carriage 3 ofthe belt wrapper mechanism as at 22. There is mounted, pref` erably on the outer side of each' ofthe arms 2| at the-lowerends thereof, a cam-like member 23 for actuating the guard in a manner hereinafter to be described. Above the pivotal connection 22 `of the arms 2 I of the carriage 3, there is arranged withA each of the arms a rearwardly extending link member 24 having one end thereof pivotally attached to the arm-like member 2|, as at A 2 55:l Atrthe opposite end of each of the link members 24, there is connected thereto arod 2S which extends between the legs of a U-shaped link member `2,7 and is connected theretopreferably by means of a coil spring 23 and ange members 29. The outer end of each of the U- Ytothe present invention, as vmore' shaped link members 2 is connected to an eye portion 33 of a bolt 3i.' The bolt 3l extends through a hole arranged preferably in an angle iron or bracket member 32 which is securely mounted on the side of the carriage 3 of the belt wrapper. Beyond the angle iron member 32, there is arranged aroundeach of the bolts 3l a coil spring 33. Beyond the spring 33 on the extreme outer threaded end of each of the bolts 3l, there is mounted a pair of adjusting nuts 34.

To either side of the belt wrapper mechanism andvat a point directly opposite the cam-like members 23 carried by the arms 2i, there is securely mounted onY the floor a bracket member 35 preferably having a roller 33 rotatably arranged on the upper end thereof, which is adapted to act as a cam follower in a, manner hereinafter to be described.

On the outer face of each of the cam-like membersI 23, there is arranged preferably a lug portion 31, preferably in the form of a steel yblock welded to each of the cam-like members, for supporting the link members ZII when the guard is in its position adjacent the belts I9, as shown in li'igure 2 of the drawings. It is the purpose of the lugs 3i to prevent the link members 2d, together with the other portions of the guard, from vibrating or slapping after the guard has. been lowered to its guarding position over the belts I9. On the inner side of each of the yoke-like portions 6 of the carriage 3 of the belt wrapper, there is disposed a similar lug portion 33 which also consists preferably of a steel block welded to the inner side of the yoke-like portions and which is adapted to cooperate with the outer side of the arms 2l so as to limit the movement of the guard upwardly and away from thebelts I9, as shown in Figure 3 of the drawings.

The improved guard of the present invention operates-in the following manner.' The guard is normally in the position shown in Figures l and 2 of the-drawings, withfthe plate-like' portion 20 thereof disposed over, adjacent to, and substan- Vtially` parallel to the wrapper belts I9. In such position, the cam-like members 23 are in contact with their respective rollers 33 carried by the brackets 35-mountedY on the iioor, and the guard is heldin such position through the cooperation thereof against the action of the springs 28 and 33. lThat is, when the guard is in this position, both the springs 28 and 33arranged with the link members 24, are under compression and loaded. f I

"It will be understood that when it is desired to use the belt wrapper mechanism, the carriage 3 is moved forwardly or protracted toward the reeling mechanism, as shown in the broken lines of the drawings, positioned between the rolling mill l (not shown) and the belt wrapper mechanism. As the belt wrapper is moved forwardly, it will be seen that the cam-like members 23 will pass overand follow the rollers 36 an-d eventually move out of ,contact therewith. The guard is thenv permitted to be moved upwardly away from the belts I9, with the arms 2i moving about'the pivotal connection 22 thereof ytothe position as shownin Figure S of the drawings. The guard 20,- together with the arms 2l, is caused to move l to-such position, due to the action of the springs 28 and 33, which have been loaded as previously described. The springs 28 and 33 move the guard upwardly and rearwardly until the arms 2i strike the stop lugs 38 arranged on the inner sides of the These springs will maintain the guard in a retracted position Aand .against the stop. lugs; 33 awhile. the belt wrapper is 'being'used .lt will be .understood that aiterthe belt wrapperfhas moved .to its most forwardposition and the :guard has moved away from the belts, they belts. iwill-be disposed partially around the mandrellM of thezreeling mech anism, as shown .inFigure Soi thedrawings, with the rollersv i8 Vcarried by the: arm-like members i6 having beenmoved upwardlyiaro'undthe inner side of the mandrelabouttheir respective pivotal connections Il'. It willbefunderstood thatthe belts 'i9 are always held taut by.means of .the

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spring 2 5 and that thebelts areheld thereby se# curely. aroundztheperipheryof the mandrel M. 1

' The .exit `endof the strip being rolled `by the rolling mill is then threaded between the manadrel andthe-,belts 19 inawellqknown manner.y T husfit will be seen thattheinitialoonvolutions of the ,stripv are seourelywrapped 'around the.

mandrel by means of `the `belts i9. After a sufflcientnumber .of oonvolutionsof the striphas beenfwrappedaround the mandrel, .the carriage which carriesl the beltfwrapper mechanism vis moved to'a retracted position away from the roll- Ving mill and. reeling' mechanism. andthe .mandrel M. As thebeltwrapper approachesits initial or normal position, as shown Vin Figure. .2 :.of. the drawings, the `camelike, members 23 will strike Vtheir respectiverollers 3S arrangedalong. the sides of the belt wrapper. .On .continued movement ,of the ,belt Wrapper, the rollers` .36Y will .follow Ythe edge of thecamflike members .23, .thereby foro ing the guard Ztl, together with the arms '2| arranged therewith, about thelpivotal connections 22 and against theacticn of the'sprngs 23 and embodiment v.of `my invention;v it fwillbe under. stood that thisembodimentismerely for the purposeof illustration anddescriptionand that vari-1 belt'adaptedlto partially encircle thefscoiling member from the whipping action of the .tailend of the coiled strip .comprisingfa guard member, means for pivotally attaching said guard member to thebelt wrapper mechanism, means for moving said guard, member to one position .over the wrapper belt so as to 4protectthe same; and means for moving said 4guard member `away from the Wrapper belt to another position. 1

2.. In combination with'a belt wrapper mechanism of the class described including a plurality Y of spaced .apart horizontally disposed rollers having at least one. endless belt arrangedtherearound with a portion thereof between the rollers adapted to partially 'encircle a coiling or reeling member, means for protecting that portion .of Ythe belt adapted .to partially encircle the coiling member from the.' whippingaction'ofthe tail end of 33 until the Vguard 20 is moved to positionadja- 1 centrthe .belts i9.. It .will be seen that as the guard rotates about the pivotal connection 22, thelugs 3l,V carried by the cam-like members '23, will move upwardly and, at about the same time the guard has reached its lowermost positionV adjacent the belts,the lugs 3T will strike the bottom of the link members 24, thereby preventing any whipping action thereof. It will be seen that the springs 28 tend to act as a .cushion so that the guard will not be forced to its guarding position with an undue amount Vof force.

It will be understood that as the tail end of Y the strip leaves the rolling mill after the strip has Y `over and adjacent to the Ywrapper belts I9, as

shown in Figures 1 and 2 .of the drawings, the guard will prevent the tail'end of the strip from comingy in contact vvith'theV belts. That is, the tail end of the strip, instead of striking the belts, will strike the top surface of the guard, as shown in FigureZ. Accordingly, it will be seen that the belts I9 are safely protected from the whipping action of the tail end of the strip.

As a result of my invention, it will be seen that there is provided Va guard for belt wrappers which is simple and effective in its use and, at the same time, a guard which may Vbe easily and conveniently incorporated With existing belt Wrappers.

While 1 have shown and described one specic the coiledlstrip comprising ya guard member, means for pivotallyattaohing said' guard member f to thebelt wrapper. mechanismgmeans for .Inoving said guard member to one position over the Wrapper belt so as to protect Ythe same, means fori moving said guard member away from thewrapper belt to another position, and means for holding and positioning said guard member in the position away from the wrapper belt.

3. In combination with a belt wrapper mechanism of the class described including a plurality of spaced 'apart horizontally dispo-sed rollers having at least one endless belt arranged therearound with aportion thereof between the rollers adapted topartially encircle a coiling or reeling member, means for protecting that portion of the belt adaptedto partially encircle the coiling member from the whipping action of the tail end of the coiled strip, as defined in claim 1, wherein the means for moving the guard member to position over the wrapper belt consists of a cam member arranged with the guard member, and stationary means arranged adjacent the belt wrapper and guard member which is adapted to cooperate with said cam member to move the guard'member to one position over the belt when the-cam member together with the'guard member carried by the belt`wrapper is moved relative to said stationary means. l

4. In combination with a belt wrappermecha'- nism of the class described including a plurality of spaced apart horizontally disposed rollers having at least one endless belt 'arranged therearound with a portion thereof between the rollers adapted to partially encircle a ceiling or reeling mem- ,l

ber, means for protecting that portion Vof the belt adapted to partially encircle the coiling member from the whipping action of the tail end of the coiled strip, as dehned` in claim 1, wherein the nism of the class described including a plurality of spaced apart horizontallydisposed rollers having atleast'one endless 'belt' arranged therearound witha portion thereof between the rollers adapted .to partially encircle'acoiling or reeling member, means for protecting that portion of the belt adapted to partially encircle the coiling `member fromithe whipping. action of the tail en'd yofthe coiled strip comprising an angularlyv arranged guard member `which is adapted to be disposed over *the* belt, a pair of outwardly extending spaced apart arms carried by said guard member.

arev moved sothat the cam'members contact the cam followers, and Vmeans for moving the guard member laway from therwrapper belt to another position. Y. t

6; In combination with abelt wrapper mechanism of the class described including a plurality l of spaced apart horizontally' disposed rollers having at least one endless belt arranged therearound Vwith a portion thereof between the rollers adapted to partially encircle acoiling or reeling membel', means for protectingthatportion of the belt adapted to partially encircle the ceiling memberfrom the Whipping action of the tail end of the coiled strip, as defined in claim 5, Wherein'the means .for moving the guard member to position away from the wrapperbelt consists of an outwardly extending link arranged witheach of the arms kwith one end of each of said links'being pivotally connected to their respective arms, and atleast one coil spring connectedto the opposite end of eachV of said arms, said coil springs adapted to be normally loaded andvadapted to move the guard Vto position away from the wrapper belt an to hold the same in said position. 1 Y '7. In combination witha belt wrapper mechanism ofthe class described including a plurality of spaced apart horizontally disposed rollers having at least one endless belt arranged therearound with a portion thereof. between the rollers adapted to partially encirclea coiling or reeling member, means for protecting that portion of the belt adapted to partially encircle the coiling member from the whipping action of the tail end,l of the coiled strip comprising a guard membery consistingof a plate-like member which is adapted to be disposed over the wrapper belt, a pair of downwardly extending spaced apart arm-like members with one arranged at each side of said guard member with the lower ends thereof being pivotally connected to the belt Wrapper mechanism to either side thereof, means arranged with said arms for moving the guard member together with the arms about their pivot-al connection so that the guard member is disposed in one position Vover Vthe wrapper belt, and means connected to said arms. for moving the guard together with the arms about their pivotal connection so that the guard member is away from the wrapper belt in another position. y

' vALFRED C. CTOINS.

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