US 2654546 A
Description (OCR text may contain errors)
Oct. 6, 1953 HoRNBosTEL WINDER MACHINE 3 Sheets-Shea*v l Filed Jne 26, 1951 KC) 2 ZUZ/EHUFM joya? lozzbosgz Oct. 6, 1953 HoRNBosTEL WINDER MACHINE 3 Sheets-Sheet 2 Fledlune 26, 1951 UVEUL Uw Z Hozazzbo'ej GFL 55 Z L. HORNBOSTEL WINDER MACHINE oct. 6,l 1953 5 Sheets-Shee'v 3 Filed June 26, 1951 Zw y Patented Oct. 6, 1953 WINDER MACHINE Lloyd Hornbostel, Beloit, Wis., assigner to Beloit Iron Works, Beloit, Wis., a corporation of Wisconsin Application .I une 26, 1951, Serial No. 233,657
This invention relates to a machine for winding web material, such as paper, to produce a roll of the desired hardness irrespective of thc Weight of the roll.
Specifically, the invention deals with a drum Winder adapted to produce very soft rolls of paper, Such as creped tissue paper, Without being influenced by the Weight of the roll being wound.
Drum Winders characteristically produce Wound1 rolls of web material which increase in hardness as the Weight of the roll increases. Prior attempts to counterbalance the weight of the roll being Wound have not been successful, because the roll lifting force must be applied to the projecting end portions of the shaft on which the roll is being Wound and, since this shaft must be of relatively small diameter in comparison with its length, deection of the shaft and the roll has occurred. As a result, the central portion of the roll was not benefited, and uneven Winding was obtained.
According to this invention, however, a drum Winder is equipped With fluid pressure operated jacks acting on the ends of the Winder shaft to relieve some of the load of the roll being wound from the Winder drums, and deection of the shaft is so controlled that the roll being wound Will have equal pressure contact with the Winder drums along its entire length. To accomplish this result, the Winder shaft need not be increased in diameter over heretofore used shafts, or made heavier than the prior used shafts. Actually, the Winder shaft arrangement used in the man chine of the present invention can be made holloW and lighter in Weight than heretofore used shafts of similar length. The Winder shaft assembly, in accordance With this invention, in cludes a through shaft or axle carrying a shell in spaced concentric relation therearound and supported thereon only through deflectable carriers between the shaft and shell and positioned at localized points inwardly from the ends of the shell and, outwardly from the axial center of the shaft. A preferred location for the supporting means between the shaft and shell is inwardly from the ends of the shell a distance of approximately one-iifth of the total shell length. Only two localized support areas are used and they, of course, will then be separated a distance equivalent to three-fifths of the shell length. The shell is thereby supported so that the deflection at the ends of the shell will be equal to the deflection of the shell at a point midWay between the supporting ends of the shaft. The anti-deiiection shaft arrangement obviates any necessity for crowning against deflection, and, since crowning is highly objectionable in Winder shafts because a crowned shaft cannot be pulled out of a roll without damaging the roll, it is clear that the anti-deflectirn assembly lls a long felt want.
It is, then, an obiect of this invention to provide a drum Winder with a counterbalanced winder shaft that Will maintain equal pressure between the roll being Wound and the winding mechanism throughout the entire length of the roll.
A further object of the invention is to provide a drum Winder adapted to produce a very soft roll of uniform softness throughout its entire length.
Another object of the invention is to provide an under drum type paper Winder with fluid pressure actuated jacks relieving the Weight of the roll being Wound on the under drum by acting on the Winder shaft Without in any way deflecting the roll along its length.
A specific object of the invention is Ato provide a twin under drum paper Winder With Winder shaft lifting jacks to relieve the load of the roll being wound on the Winder drums by lifting the ends of a Winder shaft which Will not deflect to permit uneven loading of the roll being wound on the Winder drums.
Another and specific object of the invention is to provide a twin drum paper Winder With an air cylinder counterbalance and a chain safety lift acting on the ends of a Winder shaft to relieve the load of the roll being Wound on the Winder drums Without deflecting the roll along its length.
yOther and further objects of this invention will be apparent to those skilled in the art from the following detailed description of the annexed sheets of drawings which, by way of a preferred embodiment only, illustrate one Winder machine according to this invention.
vOn the drawings:
Figure 1 is a broken front elevational view, with parts in vertical cross section, of a Winder machine according to this invention.
Fig. 2 is an end elevational vieW of the machine of Figure 1.
Figure 3 is a broken vertical crossesectional view, with parts in elevation, of an anti-deflection Winder shaft used on the machine of Figures 1 and 2.
Figure 4 is a View similar to Figure 3 on an enlarged scale and with parts omitted and With other parts in elevation, illustrating the positions of the parts When the shaft is unloaded.
Figure 5 is a view similar to Figure 4 but illus- 3 trating the positions of the parts when the shaft :is heavily loaded.
Figure is an enlarged transverse cross-sectional view taken along the line VI-VI of Figure 3.
As shown on the drawings:
As shown in Figures 1 and 2, the Winder machine It of this invention includes side frames il, Ii carrying bearing supports for rotatably mounting a pair of spaced horizontally aligned Winder drums I2 coacting to define a Winder nip I3 therebetween. Upstanding end frame portions ila., ila carry vertical tracks I4, I4 in Which are slidably mounted carriages I5, I5 each having a split bearing clamp I5 at the lower end thereof projecting into alignment With the Winder nip I3 beyond the ends of the Winder drums I2. The carriages i5 have bosses I5a on the rear faces thereof slidably receiving mounting pins I'I.
The pin has heads I'Ia at the opposite ends thereof and compression springs I8 are disposed around the pin between these heads and the adjacent ends of the boss I5a. Each head IIa is pivotally connected at its outer end With the end of a sprocket chain I il that is trained around a bottom sprocket 2l! rotatably mounted on the frame portion IIa and a top sprocket 2l secured on a cross shaft 22 Which is rotatably mounted on the end frame portions IIa. The shaft 22 is rotated by means of a sprocket 23 on one end thereof driven by a chain 24 Which, in turn, is actuated from a sprocket 25 on a hand Wheelonerated shaft 25 carried bv the end frame. The shaft 25 carries a ratchet 21 engaged by a paWl 25. The naWl 23 can be disengaged from the ratchet bv raising a lever 29. The lever 29 is conveniently actuated hv the end of a rod 3l! which is raised and lowered from a foot pedal 3 I. pivoted on the bottom of the frame. The hand Wheelaetuated shaft 25 is operative to rotate the cross shaft 22 in a direction for causing the sprocket 2! to drive the chains I9 for raising the carriages i5 in their tracks. 'The paWl 28 is effective to hold the shaft 22 against rotation in the opposite direction but can be released from the ratchet .so ,as to permit this opposite rotation. The springs 551 serve to form resilient supports for the carriages SF on, tbe sprocket chains I9. The bearing @lomos la carried bv the carriages therefore have shriner mountings on the lifting chains.
The frames II also narrv vertical jack cylinfie-.nq 32 with pistons 23 slidable therein and actuating piston rode, 34 which nroiect out of the onen tons thorn-of, The nner ends of the piston rods are pivotally connected to the bearing clamps i5 on the carriages I5. Fluid such as air under pressure is admitted into the bottom ends of the jack @vlinders 32 through pines 35 fed from a single source 35 so that pressure in each iack Will be eoual. ylhe .dui d forces the pistons 33 upwardly in the cylinders to raise the piston rods 34 and thereby raise the bearing` clamps l5.
A nacer Web W is fed to the nip I3 around the under side of one of the Winder drums I2. As shown in Figure 2, the Web W is directed into the Winder machine I il around the top side of a roll 3l and over an adjustable guide bar 38 Which laps the Web around the under side of the first Winder drum I2.
An ejector roll 39 for pushing a Wound paper roll out of the Winding nip I3 is carried on gear segments 4B at the ends of the rst under drum I2 and is sWingable over the roll I2. Pinion gears 4I in engagement with the arcuate gea? segments 40 are effective to swing the roll 39 through the nip i3 to eject the Wound roll.
The split bearing clamps I5 surround Winder shaft bearings 42 on the ends of a Winder shaft 43. As best shown in Figure 3, the bearings 42 have segmental spherical cap receiving portions 42a which are adapted to tilt in the clamps to provide a self-aligning bearing connection. The bearings 42 are freely rotatable about stub shafts 44 on anti-friction bearings (not shown). These stub shafts 44 are anchored into the ends of a tubular axle 45 by means of locking pins 45. The stub shafts project into the ends of the axle 45 for a relatively short distance only. A cylindrical shell 4l surrounds the tubular axle 45 in spaced concentric relation and is mounted on the axle by a pair of rubber mountings 48 each composed of a plurality of rubber rings of circular cross section in side by side relationship. Six rubber rings are illustrated as constituting each mounting 4B.
As best shown in Figures 4 and 5, the axle 45 has reduced diameter portions 45a equivalent in Width to the length of the mountings 48 and aording end or abutment shoulders 45h for the end rings of each mounting. These shoulders 45h are effective to hold the rings in side by side relationship.
Metal retainer rings 49 snugly i'lt inside of the shell 41 and are positioned in the shell to abut the inner rubber ring of the mountings 43. These retainer rings 49 are Welded in position to the shell 4l at the time of making the assembly, so that the retainers Will abut the mountings. As shown in Figure 4, spot Welds 50 in holes in the shell 41 can be used to anchor the abutment rings 48 in place.
The shell has an end ring or collar 5I shrunk on one end thereof and also anchored by pins 52. A spacer sleeve 53 is mounted on theshell in abutting relation to the inner end of the end ring 5i. .A second spacer sleeve 53 is provided on the other end of the shaft and is abutted by an end collar 54 Which is internally threaded and rei ceives, in threaded relation therein, a second end collar 55. A split locking collar or retainer ring 55 abuts the outer end of the collar 55 to define an abutment shoulder therefor and s seated in a groove 5l formed in the shell 41. The collar 55 has pivoted together sections on a pivot pin 58 and is adapted to be readily swung open and moved out of the groove 51. When the collar 55 is locked in the groove 51, the end collar 55 can be adjusted in the collar 54 to adjustably space the second spacer sleeve 53 from the first spacer sleeve 53 at the other end of the shell and thereby accurately control the dimension between the spacers 53 in accordance With the Width of the Web W to be Wound on the roll. A
. cardboard Winder tube (not shown) receives the paper Web therearound and is clamped on the shaft between the sleeves 53.
The bearing clamps IB are split so as to be ouickly engaged on the bearing portions 42a of the shaft bearings 42. Each bearing clamp I5 includes a fixed loWer half portion Ia on 'the carriage I5 and a sWingable top half portion I5b which is pivoted on a nin Ic carried by the carriage I5. A keeper Id on the free end of the sWingable bearing portion IBb engages `a latch or locking dog 59 which is pivoted on a pin 6I) carried by the lower half I5a of the clamp. A spring 10 urges the latch against the keeper to lock the two halves Ia and IBb together. An operating handle 'II on the lower end of the latch,
5 however, is adapted .to `depress thespring for releasing the latch -Irem the kecperfiad. A handle 12 is provided on the swingable section Ib to raise and lower the section for opening and closing the clamp.
In operation of the winder machine I0 of this invention, the paper W is fed under the first nnder drum l2 as explained above and is directed upwardly into the nip I3. A winder tube is clamped between the spacer sleeves i3 as explained above. The Winder shaft 43 has the end bearings 42 thereof ymounted in the bearing clamps I6 and the carriages l5 are lowered sui' ciently so `that the Winding tube on the shell 41 of the winder shaft lwill rest in the nip I3 in en gagement with -both drums I2. In order to lower the' Winder shaft, iluid in the cylinders 32 is eX- hausted and the foot pedal 3l is depressed to per mit the hand wheel to be swung in a direction for lowering the carriages 15. The leading end of the paper web is then threaded around the winding tube. The leading end of the paper is then clamped on the shell 41 and the drum-s are driven to rotate the shaft and tube so that a roll builds up on the shaft in contact with the yunder drums I2.
As the roll increases in diameter, the winder shaft raises in the nip I3 and the weight of the roll increases, thereby increasing the pressure relationship between the 'paper and the winder drums. In order to relieve the weight of the roll from the winder drums sc as to maintain a desired pressure relationship between the paper being wound and the Winder drums, air or other fluid under pressure is fed from `the supply pipe 3E through the Apipes 31 to the cylinders 32 under pistons 33 for causing the piston rods 3d to raise the bearing clamps l5.
As the load Iof the roll being wound is transferred from the Winder drums to the hiiuid pressure jacks, the tubular axle portion 4t of the anti-deflection Winder shaft 43 will deilect as diagrammatically shown in 'Figure 5. This deflection will be appreciable as the weight of the roll increases and as more arid more of the roll weight is borne by the jacks acting through the bearings at the ends of 'the shaft. However, the shell 4'1 on the shaft, being supported inwardly from the ends of the tubular axle 45, will only deilect in such a way as to prevent any appreciable variation in pressure between the roll being wound and the Winder drums along the length of the roll.
Thus, as shown in 'Figure 5, the end portions A of the shell are cantilever supported from the supports d8 and tend to deflect downwardly at their free ends under heavy load. The Central portion B oi the shell 41 also tends to deflect downwardly under load, but this portion 'is surported at its ends by the supports 43 .and .is in the nature of an .end supported beam, the .downward deection ,of which opposes the downward deflection of the cantilever ends or beams A. As a result, deilections at A and 'B tend to neutralize each other and `a substantially straight cylindrical shape is maintained irrespective of the catenary-like deection of the supporting axle. The rubber rings forming the supports 48 will defo-rm through interpa-rticle flow of 'the rubber to permit relative deflection between the axle land shell without -galling any of the metal parts :by permitting Ine-tal to met-al contact therebetween.
In order to substantially close vthe 4open ends of vthe shell 41, end plates or caps 13 -'('-Fi-gure 3) are provided on the Astub axles 44 in closely spaced relation from the ends of the shell. These caps .can carry deformable scalfrings 14 in opposed relation to the ends of the shell to prevent any metal to metal contact between the ,cans and shell.
The'iluid pressure admitted to the lifting cyl inders 32 can be controlled .so as to cause the jacks to relieve any desired proportion of the weight of the Aroll being wound lfrom the `windet' drums so that a constant winding pressure is maintained to produce a uniformly wound roll. As the Winder shaft `rises `up from the nip I 3, the bearing -clampswill be lifted therewith and the carri-ages I5 will rise in their tracks, causing the chains I9 to rotate the shaft 22 in a counterclockwise direction. vThis shaft, in turn, drives the chain 24 to rotate the Aratchet 21 in a courirtervclcckwise direction. The Ipawl 28 will not in terfere with counter-clockwise rotation of the ratchet and the carriages I5 can therefore rise in their tracks. if desired, however, some spring compression can be maintained on the supporting springs Ifor the 'carriages by operation of the hand wheel shaft 216. 'In the event of fail-ure of pressure in the lifting jack-s, the pawl will prevent the `carriages from dropping, so that the roll will be supported. It should be noted that the pawl 28 will prevent clockwise rotation of the shaft 22.
When the winding operation is completed, the bearing clamps I6 are opened up by releasing the latches 5 9 and the gear segments 40 are swung to move the discharge roller -3-9 over the rst Winder drum 12 and against the roll, thereby pushing the roll out of the nip I3 and out of the lower halves 18a of the 'bearing caps.
From the fabove descriptions it will therefore be understood that this invention lprovides a Winder machine which will relieve any desired Aportion of the weight of a roll being wound from the Winder drums and will maintain a uniform weight distribution throughout thelength or the roll, irrespective of 'the Weight of the roll. The invention provides a novel anti-deflection. Winder shaft including a deflectable through shaft or axle and a paper roll supporting shell .carried thereby at localized points so positioned as to neutralize deflection.
vIt will gbe understood that modifications .and variations may lbe effected without departing from the scope of the novel .concepts of the presentin'vention.
I claim as my invention:
l. A drum winder for web material comprising a pair -of under Winder drums dening a winding nip, vertical tracks at the ends of one drum, carriages -sl-ida'ble in 'said tracks, bearing clamps carried by said carriages adjacent the ends Iof said nip, upper and lower sprockets at opposite ends of eac-h track, `a 'lifting chain tor each earriage trained around the adjacent upper and lower sprockletsrmeans tor selectively 'locking the :upner sprockets against vrotation in a direction permitting lowering of the carriages., a fluid pressure jack adjacent each Aend .of the nip, a ,piston rod nroiectins trom each jack acting hon :the :adjacent bearing clamp to raise and lower the `clamps relative to the znip, a winder shaft having Ibearings on the ends thereof receivable .in said bearing .clamps a cylindrical shell .enveloping said shaft between the bearings, resiliently deformable Ameans connecting :the shell and .shaft :at localized areas inwardly from the .ends ,of theshell and .outwardly from the central portion xof thes'hatt to -form the sole support for the shell, a nxed end colla-r on one end of the shell, a spacer sleeve on said shell abutting said end collar, an internally threaded collar slidable on the other end of the shell, an externally threaded collar threaded into said internally threaded collar, said shell having a peripheral groove near the end thereof carrying the threaded collar, a split retainer ring selectively locked in said groove for receiving the externally threaded collar thereagainst, whereby the internally threaded collar is adjustable toward and away from the collar at the other end of the shaft, a second spacer sleeve thrusting against said internally threaded collar, and said sleeves adapted to clamp therebetween a Winder tube for a roll of paper, whereby a web wound on said shaft can have selected pressure engagement with said Winder drums along its entire width by partially supporting the weight of the roll and shaft on said jacks.
2. A Winder machine adapted for producing a Wound roll of a controlled uniform degree of hardness irrespective of the weight thereof which comprises a pair of under Winder drums delining a Winding nip, vertical tracks on said machine adjacent the ends of the Winder drums, split bearing clamps slidably supported in said tracks, fluid pressure operated jacksV engaging said clamps for raising and lowering the clamps in the tracks, a Winder shaft extending along the length of said Winding nip and having end portions projecting through the bearing clamps, a shell enveloping said shaft along the length thereof lying within said nip, and resilient deilectable means inwardly from the ends of the shell and outwardly from the central portion of the axle, whereby a roll wound on said shell will not deflect in response to deflection of the shaft upon carrying the load of the roll on the shaft from said jacks.
3. A Winder machine adapted for producing a Wound roll of a controlled uniform degree of hardness irrespective of the weight thereof, which comprises a pair of under Winder drums defining a winding nip, upright tracks on said machine in parallel alignment and adjacent the ends of the Winder drums, bearing means slidably supported in said tracks, uid pressure actuated means engaging said bearing means for raising and lowering the bearing means in the tracks,
a Winder shaft extending along the length of said I Winding nip and having end portions rotatably supported in said bearing means, a shell enveloping said shaft between the supported ends thereof and receiving the Wound roll of paper therearound, and deformable means supporting the shell in spaced concentric relation from the shaft at two localized points inwardly from the ends of the shell and forming the sole connections between the shell and shaft, whereby den flection of the shaft will be neutralized to mainu tain a substantial constant distribution of the load on the Winder drum throughout the entire length of the roll.
A Winder machine of the under drum type comprising a pair of under Winder drums defining a winding nip, vertical tracks on said machine adjacent the ends of the Winder drums, bearing supports slide-bly mounted in tracks, fluid pressure actuated means engaging said supports for raising and` lowering the supports in the tracks, a Winder shaft extending along the length of said Winding nip and having end portions rotatably mounted in said supports, a shell enveloping the Winder shaft between the supports, and flexible supporting means between the shaft and shellholding the shell in spaced Vconcentric relation around the shaft and accommodating relative deflection of the shell and shaft, said supporting means being localized at two spaced areas each inwardly from the end of the shell and outwardly from the axial center of the shaft.
5. A Winder machine adapted for producing a wound roll of a controlled uniform degree of hardness irrespective of the weight thereof, which comprises a pair of under Winder drums dening a Winding nip, upright parallel tracks on said machine adjacent the ends of the Winder drums, a Winder shaft extending along the length of said Winding nip, bearings rotatably mounted on the end portions of the shaft and slidably retained` in said tracks, fluid pressure actuated means engaging said bearings for raising and lowering the bearings in the tracks, a cylindrical shell on the shaft between the bearings, flexible supporting means connecting the shaft and shell, said means being disposed at two localized areas each inwardly from the ends of the shell and outwardly from the central portion of the shaft, and means for retaining said means in said areas, whereby deflection of the shaft between the bearings will not be imparted to the shell and the deflection of the shell under load will be neutralized between the portions of the shell beyond the supporting connecting means and the portion of the shell between the supporting connecting means.
6. A Winder machine adapted for producing a Wound roll of a controlled uniform degree of hardness irrespective of the weight thereof, which comprises a pair of under Winder drums defining a Winding nip, vertical tracks on said machine adjacent the ends of the Winder drums, a tubular Winder shaft extending along the length of said Winding nip, stub shafts anchored in the ends ,l of said tubular shaft and extending therefrom,
bearings rotatably mounted on said stub shafts and having self-aligning arcuate portions, said bearings being slidably retained in sai-d tracks, fluid pressure actuated means engaging said bearings for raising and lowering the bearings in the tracks, a shell enveloping the tubular shaft between the bearings, and resiliently deformable means supporting the shell in spaced concentric relation from the tubular shaft, said means in cluding a pair of supports each spaced inwardly from the ends of the shell and outwardly from the axial central portion of the shaft.
'7. A Winder shaft comprising a through axle having solid end portions and a hollow central portion, said hollow central portion having reduced diameter areas near the ends thereof delining opposed shoulders, rubber rings disposed around said reduced diameter portions and abutted by said shoulders. a metal shell surrounding the hollow portion of the shaft and snugly engaging said rubber rings, and retainer rings in said shell abutting the innermost rubber rings, whereby said shell is supported on resiliently deformable rubber rings inwardly from the ends of the shell to accommodate relative deflection of the shell and shaft.
8. An anti-deflection Winder shaft for under drum paper winders and the like which coniprises a metal shell, a fixed collar on one end of the shell, an internally threaded collar on the other end of the shell, an externally threaded collar threaded into said internally threaded collar slidable on said other end of the shell, said other end of the shell having a peripheral groove therearound, a split collar anchored in said groove and defining an abutment shoulder for the externally threaded collar, a pair of spacer sleeves bottomed on the opposed collars on the ends of the shell adapted to receive a winder tube therebetween, a through axle in said shell, rotatable bearings on the ends of the axle beyond the shell, and rubber mounting means supporting the shell in lspaced concentric relation from the axle at two localized points each inwardly from the ends of the shell and outwardly from the central portion of the axle.
9. A paper winder comprising a pair of under winding drums defining a winding nip therebetween, vertically guided bearing supports at the ends of the wnder drums aligned with the nip, a Winder shaft carried by said bearing supports extending through the nip, said winder shaft having rotatable bearings on the ends thereof seated in said bearing supports, a cylindrical shell on the winder shaft between the bearing supports and extending along the length of the nip, rubber rings supporting the shell in spaced concentric relation from the shaft at two localized areas inwardly from the ends of the shell and outwardly from the longitudinal center of the shell, said shell having a peripheral groove around one end portion thereof, said shell hav- 10 ing a l'lxed abutment shoulder around the other end portion thereof, a removable retainer in said groove forming a second abutment shoulder, nested collars in threaded engagement bottomed on said second shoulder, spaced sleeves on the opposite ends of the shell respectively bottomed on the rst shoulder and on the collar, said sleeves adapted to clamp a paper winding tube on the shell therebetween, and means for raising the bearing caps to lift the shaft for transferring part of the weight of the roll being wound off of the Winder drums.
References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 163,2'17 Lawson May 11, 1875 847,418 Lichtenstadt Mar. 19, 1907 1,001,056 Lounsberry Aug. 22, 1911 1,487,279 Silvis Mar. 18, 1924 1,869,545 Crafts Aug. 2, 1932 2,141,629 Warner et al. Dec. 27, 1938 2,194,078 Simonds Mar. 19, 1940 2,196,000 Richardson Apr. 2, 1940