US2477843A

US2477843A - Belt wrapper

Info

Publication number: US2477843A
Application number: US553726A
Authority: US
Inventors: Wilson Tom
Original assignee: Bethlehem Steel Corp
Current assignee: Bethlehem Steel Corp
Priority date: 1944-09-12
Filing date: 1944-09-12
Publication date: 1949-08-02
Anticipated expiration: 1966-08-02

Description

Aug. 2, 1949. T. WILSON 2,477,843

' BELT WRAPPER Filed Sept. ;2, 1944 SsnQtS-Sneet 1 5 Sheets-Sheet 2 u v .v M/A/fb. Q. I w WWW W V W YT "r. WILSON Aug. 2, 1949.

BELT WRAPPER I Filed Sept. 12, 1944 T. WILSON BELT WRAPPER Aug. 2, 1949.

5 Sheets-Sheet 3 Filed Sept. 12, 1944 Aug. 2, 1949. T. WILSON 2,477,843

' Y BELT WRAPPER I Filed Sept. 12, 1944 5 Sheets-Sheet 4 Aug. 2, 1949. MLSON 2,477,843

- BELT WRAPPER Filed Sept. 12, 1944 5 Sheets-Sheet 5 Fatenteci Aug.

2,477,843, n I "BELT-WRAPPER, v

Tea-mail, enastram;,.ass1aer m Bethle I 11cm Steel Company, a corporation, of Pennsylvania Application September 12, 1944, Serial No. 553,726

14 Claims. (01. 242-78) My invention relates to a belt wrapper forstrip material for the purpose of intercepting the lead end of oncoming travelling strip material and guiding it around a driven mandrel of a tension reel until the frictional engagement between the mandrel and strip is suflicient to permit the belt wrapper to be withdrawn from the reel during the remainder of the coiling operation, and is more especially adapted for use in forming coils of tin plated strip or thelike after a continuous electrolytic tin plating operation.

In electrolytic tin plating units of this kind the operation is continuous, the rear end of a fed coil being welded to the front end of the next coil to be fed through the unit and this-unit is usually arranged in the following sequence: a coil of strip mounted on a suitable holder is first fed through a welder which is adapted to weld the ends of the coils together at the proper time,

thence over the entry looping'tower having its for cleaning the surface of the strip, from which it is advanced into a rinse tank and into the elecwhich gives riseto scoring 'of the surface of the strip, 7

With my belt wrapper'the lead end of the coil is securely held against the mandrel and insures tight. first wraps around'the same, after which thewrapping device may be backed away from the mandrel and the coil completed.

While my invention is described as applied to the coiling of tin plated strip material issuing from electrolytic tin plating units it is equally applicable to the coiling of strip delivered from a rolling mill or any equipment designed for proctrolytlc bath, again through a rinse tank and I between pinch rolls and a delivery looping tower to allow slack or loop in the strip when a finished coil is cut off, then around shifter rolls and finally it is wound on the mandrel :of .a tension reel which is adapted normally to pull the strip through the unit.

After a full coil has been formed on the mandrel of the tension reel the top rollers of the delivery looping tower are lowered to allow slackin the strip between the tension reel and the delivery looping tower and the strip is cut at this point.

The coil is then by suitable mechanismejected from the tension reel. All of theabovees-sing strip material.

One object of my invention is to provide a meansfor rapidly engaging and disengaging a mandrel of a tension reel whereby the lead end portion of the strip may beheld and rapidly and erliciently coiled with the least amount of effort on the part ofthe operator.

Another object of my. invention is to provide a belt wrapper for producing the initial tight wraps around the coiling mandrel of a tension reel to prevent slipping and scoring of the strip being coiled.

A further object of my invention is to provide I apparatuswhich will allow the strip to be immediately wrapped around the mandrel of the tension reel without preliminary shearing of the ends or using a gripping groove or the like usually associated with reels now in use, and without stopping the rotation of the reel so that a veryv shortperiod of time is required to wrap a sufiicient number of turns around a mandrel of the reel to securely hold the strip in winding contact therewith.

Another object of my invention is to provide means for causing the pivoted members of the fastening device used on the mandrel of the reel. stopped and even with experienced workmen several minutes are consumed before the end of cially desirable speeds. I

If the moving strip on themandrel is not securely held it results in slipping of the coil In this manner the mandrel has to bebelt wrapper to' swing the belt into position for engaging the mandrel and for positively holding Still another object of my invention relates to the belt take-up to give the required belt tension. With these and other objects in view which will become more apparent in the following desc'ription and disclosure, this invention comprises the novel construction and combination hereinafter describedand more particularly pointed out and defined in the appended claims.

objects of my invention I will now in order to make the same more clear, refer to the annexed 3 the sheets of drawings forming a part of this specification and in which like characters of reference denote like parts.-

Figure 1 is a top plan view of my improved belt wrapper embodying the invention.

Fig. 2 is a side elevation.

Fig. 2a illustrates the angle and manner of threading the strip tothe mandrel whenashifter roll is used.

Fig. 3 isa vertical longitudinal section taken on the line 2-2 of Fig. 1.

Fig. 4 is an elevation of the arm.

swinging double arm.

Fig. 6 is an elevation of the swinging double link; '7 V Fig. 7 is an elevation of the take-up arm for giving the required belt tension.

Fig. 8 is a side elevation of the take-up arm.

Fig. is a side elevation of the swinging double Fig. 9 is a longitudinal section of one of the rollers having endflanges.

Fig. 10. is a longitudinal sectionof one of the rollers without end flanges.

Fig. 11 is a detail of one of the keeper plates.

Fig. 12 is a side elevation of the pivoted housing member detached;

Fig. 13 is a top plan viewof the pivoted housing member shown in Fig. 12. i

Fig.. 14 is a top plan view of the crescent shape arm which is adapted to be pivoted to the housing member.

'4 centric with the mandrel 2i and is adapted to partially surround said mandrel II when the belt wrapper is in its forward position.

The upper forward end of the housing is supported by means of a shaft 22 having a roller 33 mounted thereon. Said shaft 32 has its ends mounted in bearings 34 near the upper offset ends of the side bars 25 of a double link 36 which are connected together at their upper and lower ends by tubular members 21 and 38 respectively, and the lower portion of the side bars 25 are further connected by means of a web plate 39.

A bearing is secured to the lower end of each side bar 35 for receiving a shaft 40 which has its end supported in the webs of the channel shaped side members 2 of the base frame I.

I A shaft 4| is supported in hearings in the lower forward ends of the side plates 21 and is adapted to support acrescent shaped arm 42 having spaced side members 43 connected together by means of channels 44 and shafts 45, 48 and 41 upon which are mounted rollers 48, 49 and 50 respectively. The lower forward end portions of the side plates 21 are also connected by means of a shaft II for supporting a roller 52.

The

rollers

2i, 24, 48, 49, 50 and 52 are preferably slightly crowned as indicated and carry an endless'belt 52 that is held taut at all times by Fig. 15 is a top plan view of the crescent shaped arm shown in Fig.14, and 3 Fig. 16 is a modified form of a crescent shaped arm used with a shifter roll with an alternate threading.

Referring now to the various characters of reference on the drawings, the numeral I indicates the base frame of rectangular shape upon which the belt wrapper is mounted having longitudinally extending channel shaped side members 2 which are connected transversely by channels 2 and plate members 4. Mounted on top and connecting the channel shaped side members 2 at one end is a platform 5 upon which is mounted centrally spaced pedestal supports 6 having journal bearings for receiving trunnion extensions I, of an air cylinder 8 having a piston 9, with a piston rod ID, the outer endof which is pivoted at H to a pair of webs l2 of a double arm I2. The double arm l3 has side plate members l4 which are connected together at the lower portions by means of transversely extending web plate members It and near the top by an angle it. The side plate members 14 each have a bearing I'l secured to its lower end for receiving a shaft it having its ends extending through and supported in the channel shaped side members 2. A bearing [9 is secured to the upper end of each side plate memsupport the ends of a shaft 24 having a roller 25 mounted thereon. This shaft 24 is also adapted to support the rear end of a pivoted housing 26 having side plates 21 connected together by means of transversely extending web plates 28 and angles 29. The forward'end 'of each of the side plates 21 of the pivoted housing 26 have an are shaped recess 20 formed therein which is conmeans of a roller 54 mounted on a shaft 55 supported in the swinging end of the side bars 56 of a take-up arm 51 which is weighted as at 58 to produce tension on the belt. The opposite ends of said side bars are connected together by means of a tubular member 9 and are pivoted on a shaft 60 having its ends supported in the side plates 21 of the pivoted housing 25.-

I prefer to make the

rollers

2i, 24, 33 and 52 with flanged ends and the rollers 48, 49 and 50 which are carried by the crescent shaped arm without flanges but they may all have flanged ends if desired.

As indicated in the drawings all the ends of the shafts for the rollers and pivoted arms are provided with keepers 8| to hold the shafts in a fixed position.

In Figs. 2 and 2a I have indicated threading the strip to the mandrel of the reel at two different angles. The usual angle is shown in full lines as at 62 in Fig. 2, and an alternate threading when a shifter roll 63 is used is indicated at 64 in Fig. 2a, in which case theouter end 55 of the crescent shaped arm 42' has to be shorter as more clearly illustrated in Fig. 16 of the drawings.

The mandrel II is a well known collapsible type and is rotated by means of a motor having a brake mounted on the reel drum as at 61. The mandrel expands when the reel shaft is rotatin in the coiling or winding up direction. To collapse the mandrel, the brake is applied to the reel drum, and the reel shaft is reversed. The coil 68 can then beremoved from the mandrel and be supported on the cradle 69 and then transferred to any desired point.

Having thus given a detailed description of my invention I will now describe briefly its operation. Assuming that the parts are in the position shown in dotted lines in Figs. 2 and 3 with the mandrel 2| expanded and revolving slowly, the belt wrapper is then moved forward as a unit by means of the air cylinder 8 and connections from the non-operative to the reeling position as shown in full lines on the drawings. When the top roller 48 and endless belt 82 at one end of the crescent shaped arm 42 contacts the mandrel it causes the lower roller It at the other end of I a "mandrell-of a reel; a" belt I wrapper {ad'a'p movement'abo link pivoted; and its' -uppem the arm to swing upward and hold the endless I belt 53 around'the bottom half of the mandrel 1 and by means of the roller 33 around'the back portion of the mandrel in position to receive the strip. The end of the strip is then entered manu- =5 ally between the underside of the endlessv belt 53 and theta! Oi the'mandrel. After a'few wraps suflicient to grip the strip on the mandrel, the

belt ,wrapper must be moved-back again as a unit to the non-operative position asindicated in 10 limited to the exact construction'shown" and described, but'may usesuch substitutiona r'nodi 15 flcations or equivalents thereof, as are embraced within he scope or my invention, or aspointed Having thus described my invention, "what fI- ent'isi p 1. In a, machine for coiling strip or the like-'0 1 rate w hit e mandre i qm l fa-r Ira-me, ahousihgpivotally;connected for swingin ie the base. mew-arms? ha lates "a double J- arm pivoted to th claim as newiandldesiretosecure-byLette Pat fgg otthe crescent shaped arm for the belt to'partially encircle the mandrel, and fluid pressure [actuated means pivotally connected to the double ing pivotally mounted for swinging movement, a

plurality of rollers carried by the housing, a crescent shaped arm pivoted centrally to the lower forward end of the 'housing,'rollers mounted in a each end of the crescent shaped arm. an endless belt mounted on the rollers carried by the housing and the crescent shaped arm, means for maintaining the belt taut atall times in ,con-

- tact with the rollers and adapted to swing the vrear end of the crescent shaped arm upward rwhen the belt wrapper is withdrawn irbm the mandrel and means'for engaging said rear roller ofthecrescent shaped arm to raise the rollerand belt lat-the opposite end of the crescent shaped 'arm for the belt to partially encircle the mandrel.

machine for coiling stripor the like on uv mandrelof a'reel; a belt'wrapper adapted to cooperate with said mandrel to form a guide for the strip;-- fc0mprising a base frame, a housing piv-,

"- iota'lly'mounted above the baseiframe a plurality v of /rollers carried by: the housing, a crescent "'-carried by:- the housing .and the crescent shaped inging movmentgia double its lowe endstmth'esb-asezframe:

of the housi for isupportingatlther foriwardaend.

n i termediate' pointitosthe iowerrforwalid the spaced verticalfs'ide ljjlates dfthe house t; r A;

mg, nendl'es'sbelti carniedby dahecrollers mou. ted

ifr theh'ousingdand 'ithexcrescenteshapedLarmrea .5;

times' ilr contact witli zthe irolleisgameansaiomeiiz gaging said rear roller of the crescent shaped arm to raise the iroller and belt at the opposite end. 75

ham

'ortionfito the uppere-forwardi end:

the mandrel-toraisethearollen andbeltat the opbelt tosspartially;encircle the-mandrel when the belt wrapper is advanced tolengagethe mandrel.

yes

shapedg arm f pivoted centrally to the n housin ;v rollers-=rnounted in each end 10f thev crescentshaped arm,= anendless belt mounted on the;rollers army-means for swinging-the housing, and ibelt to a'nd fr'om cooperative relation to-the mandrel; means'ior' swinging the rear end ,of-the crescent shaped arm upward when the i-belt wrapper is Y withdrawn fromlthe mandrel, saidprollervatthe rear end ;of rtheucresc'ent. shaped arm engagingposi't'e send; ofithe .crescentshaped. liarm for; the;

4 cooperateawlth: said mandrelfito tor n1 a guide io'r; the; stripacomp isine; as ase ram a h si n vspac dren ca sid cnlie io l to ether. tercan ec inewrfl a em s iii itf r1 11 Y 7 mandrel of a reel, a belt wrapper adapted to cooperate therewith, comprising a base frame, a housing pivotally-connected to thebase frame for'swinging movement having spaced vertical side plates joined together by interconnecting -ried by the rollers, means for swinging the rear end of the crescent shaped arm upward when the belt wrapper is withdrawn from the mandrel,

said roller-at the rear-end of the crescent shaped arm adapted to be actuated by the mandrel to raise'the roller and'belt at the opposite end of the crescent shaped arm for the belt to partially encircle'the mandrelwhenthe belt wrapper is advanced to engagethe mandrel, and means for swinging the bcltwrapperto and from cooperativerelatlonto saidmandrel.

vasmach ne-fer, starting the'coiling of strip l or the like on va-mandrel of a reel, a belt wrapper adapted to cooperate'withthemandrel, comprising a base frame, a housing pivotally connected to the base. frame for swinging movement having spaced vertical side plates joined together by interconnecting-cross members, a plurality of rollers mounted between the vertical side plates and movable withthe housing, a crescent shaped arm pivoted at'an intermediate point to the vertical side plates of the housing, rollers mounted on the inner and outer ends of the crescent shaped-arm an endless belt carried by the rollers actuated by contact with the mandrel, for engaging the outer roller for raising the inner end of the crescent shaped arm when the belt wrapper-is withdrawn'from cooperative relation to the mandrel and for engaging the inner roller to raise, the roller on-the outer end of the crescent shaped arm :to cause the belt to partially encircle the mandrel when the belt wrapper is advanced to engage :the mandrel, and means for swinging the belt wrapper to and "from cooperative relation to said mandrel.

8; A machine for starting the coiling of strip or the like one mandrel of :a reel, a belt wrapper adapted to cooperate therewith, comprising a base frame, a housing pivotally connected to the base frame adapted for swinging movement having'spaced vertical side plates joined together by Ha mandrel ofa reel, 'a belt wrapper adapted tocooperate therewith, comprlsing a base frame,

ing movement having spaced vertical side plates joined together by interconnecting cross members, a plurality of rollers mounted between the vertical side plates and movable with the housing, a crescent shaped arm pivoted at an intermediate point to the housing between the side 7 plates, rollers mounted at each end and. at an intermediate point of the crescent shaped arm, anendless belt carried by said rollers having a portion between them adapted to partially encircle the mandrel, the portion of the belt leading to the mandrel from the adjacent roller being adapted to guide the front end of oncoming metal strip into contact with the mandrel,

means for swinging the beltwrapper to and from' I cooperatlve-relationto said mandrel, means for raising the roller .and.rear end of the crescent shapedarm when the belt wrapper is withdrawn from the mandrel, andmeans actuated by the mandrel for engaging said rear roller of the crescent shaped arm to raisethe roller. and belt at theouter end or the crescent shaped arm to cause'tlie belt toxpartially encircle the mandrel when: the belt wr pper is advanced to engage the mandrel. I V

10. A machine for coiling strip or the like'on a housing pivotally mounted for swinging movement on the base frame having spaced vertical side plates joined together by interconnecting cross members, a crescent shaped arm having a roller at each end pivoted centrally to the side plates of the housing,- a plurality of rollers interconnecting cross members, a' plurality of rollers mounted between the vertical side plates and movable with the housing, a crescent shaped arm pivoted at an intermediate point to the vertical side plates of the housing, rollers mounted mounted on and movable with the housing, an

endless belt carriedby the rollers mounted on the housing and crescent shaped arm, said endmandrel, means for maintaining the belt on the rollers taut. at all times, fluid pressure means pivotally mounted on the base frame and connected to the housing for swinging the belt wrapper to and from cooperative relation to said mandrel, means for swinging the rear end of the crescent shaped arm upward when the belt wrapper is withdrawn from the mandrel, and means actuated by the mandrel for engaging said roller at the rear end of the crescent shaped arm to raise the roller and belt at the outer endof the crescent shaped arm for the belt to partially on the inner and outer ends of the crescent shaped arm, an endless belt carried by the rollers,

means engaging the belt to maintain said belt tautat all times in relation to the rollers and adapted .to raise the inner end of the crescent shaped arm when the belt wrapper is withdrawn from cooperative relation to the mandrel, said belt wrapper to and from cooperative relation to said mandrel;

9. A machine for initially/starting the coiling of strip or the like on a mandrel'oi' a reel, a beltwrapper adapted tocooperate therewith, comprising abase frame; a housing pivotally connected to the base frame and adapted for swinginner roller actuated by the mandrel to raise thev encircle the mandrel when the belt wrapper is advanced to engage the mandrel.

11. A machine for coiling strip or the like on a crescent shaped arm pivoted at an intermediatepoint to the lower front end portions of the side plates of the housing adjacent to the recesses, rollers rotatably mounted in each end and at an intermediate point of the crescent shaped arm, a plurality of rollers rotatably mounted in the housing and movable therewith, an endless belt carried by the rollers, means for maintaining a constant tension on the belt in relation to the rollers and adapted to swing the rear end of the crescent shaped arm upward when the belt wrapper is withdrawn from the mandrel. said roller at the rear end of the crescent shaped arm being adapted to be actuated by the mandrel to raise the roller and belt at the front end of the crescent shaped arm to cause the belt to partially encircle the mandrel when the belt wrapper is moved forward into strip guiding position.

12. A machine for coiling strip or the like on a mandrel of a reel, a belt wrapper adapted to cooperate with the mandrel, comprising a base frame, a. housing pivotally mounted for swinging movement on the base frame, a plurality of rollers rotatabl mounted on the housing, a crescent shaped arm pivoted to the housing, rollers mounted in each end of the crescent shaped arm, an endless belt carried by the rollers adapted to be actuated by the mandrel for engaging the rollers in the ends of the crescent shaped arm to cause the belt to partially surround the mandrel to guide the strip thereon or to withdraw the belt from the mandrel, means for engaging the endless belt for maintaining the belt taut at all times in contact with the rollers, and fluid pressure means pivotally mounted on the base frame and connected to the housing for swinging the belt wrapper to and from cooperative relation to said mandrel.

13. A machine for coiling strip or the like on a mandrel of a reel, a belt wrapper adapted to cooperate with the mandrel, comprising a housing pivotally mounted for swinging movement, a plurality of rollers rotatably mounted on the housin a crescent shaped arm pivoted centrally to th housing, rollers mounted in each end and at an intermediate point in the crescent shaped arm, an endless belt carried by the rollers, a weighted take-up arm pivoted to the housing at one end, a roller mounted for swinging movement in the other end of the talEe-up-arm for engaging the endless belt for maintaining the belt taut at all times in contact with the rollers, said endless belt adapted to be actuated by the mandrel for shaped arm to cause the belt to partially surround the mandrel to guide the strip thereon or to withdraw the' belt from the mandrel, said endless belt having a portion between said rollers in the' crescent shaped arm adapted to partially encircle the mandrel from the adiacent roller being adapted to guide the front end of the oncoming 7 and from cooperative relation to said mandrel.

14. A machine for coiling strip or the like on the mandrel of a reel, a belt wrapper adapted to cooperate with the mandrel, comprising a base frame, a housing having spaced vertical side plates joined together by interconnecting cross members, a double arm having side plate members with their lower ends pivoted to the base frame and their intermediate :portions pivoted by means of a shaft to the inner end of the housing, a shaft having a roller mounted thereon connecting the upper ends of the double arm, a double link having side bars with their lower ends pivoted to the base frame and their upper ends pivoted on a shaft for supporting a roller and the front end of the housing, a recess formed in the front end of each side plate of the housing adjacent to the mandrel adapted to receive the mandrel when the housing is moved into strip guiding position, a crescent shaped arm pivoted centrally to the lower front end portions of the side plates of the housing adjacent to the recesses having side bars joined together by interconnecting cross members, a roller mounted between the side bars at each end and at an intermediate point, a plurality of rollers mounted between the side plates of the housing, an endless belt carried by the rollers, means for maintaining I the belt taut in contact with the rollers atall 9 to engage the mandrel.

engaging the rollers in the ends of the crescent 46 the mandrel, the portion of the belt leading to TOM WILSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Great Britain June 29, 1942