US2569797A - Toilet roll winder - Google Patents

Description

1951 5. J. CAMPBELL TOILET ROLL WINDER Filed Sept. 2, 1948 5 Sheets-Sheet l 1772162775 50/7706/ G/77 O// J Q QM; L/Ww 1951 5. J. CAMPBELL 2,569,797

TOILET ROLL WINDER Filed Sept. 2, 1948 s Sheets-She et 2 Eve/72 k 50/7706/ (am aAe// O 1951 s. J. CAMPBELL TOILET ROLL WINDER 3 Sheets-Sheet 5 Filed Sept. 2, 1948 Patented Oct. 2, 1951 UNITED STATES PATENT OFFICE TOILET ROLL WINDER Samuel J. Campbell, Green Bay, Wis.

Application September 2, 1948, Serial No. 47,372

4 Claims.

This invention relates to a parent roll drive applicable to any converting apparatus to provide web delivery at a predetermined lineal rate and from a predetermined point of delivery.

It is very common in machinery which delivers webs of paper or cloth or similar materials from a parent roll to effect delivery by means of feed rolls acting on the web and to apply some sort of a brake or drag to the parent roll which will act more or less continuously thereon. The parent roll is not ordinarily driven directly because to do so in any ordinary manner would involve a number of difficulties. For one thing,

the lineal rate of delivery would vary according to the radius of the roll and for another thing, any attempt to act on the periphery of the roll would involve a tendency of the web to wrinkle, even to the extent of forming a loop at the point of contact. The present invention seeks to over come the variation in radius by driving the periphery rather than the hub of the current roll and I have succeeded in overcoming the tendency to wrinkle by using a driving drum having a discontinuous peripheral surface.

These and other objects of the invention will appear more fully from the following disclosure thereof.

In the drawings:

Fig. 1 is a view diagrammatically illustrated of apparatus embodying the invention as viewed in section on the line ll of Fig. 3.

Fig. 2 is a View taken in section on the line 2-2 of Fig. 1.

Fig. 3 is a view taken in section on the line 3-3 of Fig. 1.

While the invention is particularly described in connection with perforating apparatus for a toilet roll winder, it will be understood that this is merely by way of exemplification and that the invention has a wide range of utility wherever a Web is to be unwound from a parent roll.

The frame of the converting apparatus comprises a pair of spaced side members 5 and 6 having bearings for the knife-equipped perforating roll 1 and the coacting feed roll 8. The latter is mounted upon the power input shaft 9 which carries pulley l9 driven by belts H from motor 12. The pulley H1 may include a pneumatically operated brake I3 which may be expanded by air admitted into the annular elastic tube l 4 through pipe l5 subject to the control of an electromagnetic valve IB, this mechanism, however, forming no part of the present invention. The sheets may be counted and the apparatus controlled by an electrical switch ll (Fig. 1 and 2 Fig. 2) operated by cam l8 driven through a gear seat l9 actuated by chain 20 from the power input shaft 9.

The present invention is more particularly con cerned with the parent roll and the means for delivering web 26 therefrom. For the purposes of the present exemplification, the web passes between the perforating roll I and the feed roll 8 as clearly shown in Fig. 1.

The parent roll is provided at the ends of the core 21 with plugs 28, 29 which are annular, being mounted by means of roller bearings 39, 3! upon inner races 32, 33. These races have flanged heads provided with set screws 34, which fasten them to non-revoluble shaft 36. This shaft is guided in the inclined slots 31, 38 which are open at their upper ends and closed at their lower ends as shown in Figs. 1 and 2. These slots may conveniently be formed in winglike extensions 39, 40 of the frame elements 5 and 6, the extensions being bolted in place as indicated in Figs. 1 and 2.

The non-revoluble shaft 36 upon which the parent roll is mounted to turn may be adjusted to any desired axial position in order to shift the parent roll to one side of the machine frame or the other, so that the web will feed therefrom in the desired plane. For this purpose, the shaft 36 carries a flanged guide spool 42. Between the flanges of spool 42 is a bar 43 mounted on parallel links 44, 45 (Fig. 2 and Fig. 3), such links being pivoted to the frame wing extension 39 and to the bar. A nut 46 carried by the bar is in threaded engagement with an adjusting screw 41 at the end of shaft 48, the opposite end of the shaft being provided with a hand wheel 49 and positioned by stop collars 50, 5| at each side of a bracket 52 which projects from the frame member 5 and in which the shaft 48 is journaled. By rotating the hand wheel 49 to oscillate the guide bar 43 forwardly or backwardly, such bar is also caused to move inwardly and outwardly upon the respective links 44, 45 respecting the frame extension wing 39, thereby causing a corresponding reciprocation of the shaft 36 and parent roll 25 due to engagement of the guide spool 42 on such shaft with the bar 43.

The position of the parent roll and shaft 36 in the slots 31, 38 is determined by engagement of the periphery of the parent roll with a driving 51 for the shaft 59 upon which drum 55 is mounted. For driving the drum, I provide connections which desirably include change speed gearing. There is a pinion 60 on the main drive shaft 9 which meshes with a pinion 6| on a stud 62 projecting laterally from frame side 6. Below this, another stud at 63 adjustably carried on the crank 65, carries a change gear 66 which is merely an exemplification of any desired change speed mechanis mifor providing an accuratelydetermim. able rateiof operation of. the drumfid withl respect. to the shaft 9 which operates the conversion mechanism, whatever that may be.

A chain ear.

connected with the hub of the change speedgear 66 operates over suitable sprockets to di shaft 59 upon which drum 55 is mcunted.,;

An important feature of the inyent ior consists in the construction of drum55-to provides di's' continuous peripheral surface.

that its-periphery comprises angularly. spaced 1y e tteriding s'l'atsfefli I If. the su'rfa of this" drum were continuous, the web o'f' papenffd thereby, from the. parent. roll 2 5 would from -a w im eprgiobp, Inftheconstruction illustiated th drum is actually free of the peri new of' th ,pa nt roll, or substantially free thereof, momentarily every timeone of'th e slats 69 passes from beneath the parent-roll. The presult'isla feedwhich can be contro lled. with [mgr reatest acpuraem andiwhich delivers the web smoothly aria n rmnea I t,.Wi,l1 ,be ob goes thatthe shaftltfi will move dow W dlyiin the'way'sLZi'l, 38,as; l3h e radius of.

lots .weishts n. hi h th i riaitfifig di posed While the shaft 36' does not revolve wi tl'i the parent roll i t will rotate in frictional contact was ays wh urs f. s dt'wniard eansiforlcontrollin'gl thef gi'aipo mon 6f in itslrnovem ent'down 's'aid' ways, 'sa id pos ion icontirolling means comprising spool said shaft, a guidef bar para e saidways and'en gaged with said'spopl, and means for ad} j-usting the asses of 'said'guid 'bar laterally reSpecti'ng said waySQ 2: A devic e'o"f the character describedeomprising tlieicombination with a feeding drum and iriclined ways" leading toward said drum; of a parent roll support "comprising a shaft mounted on said ways andadapted to roll down said ways e'the J This mayscon veniently be done by so constructing the drum ng druinj55, due to' the inclination of. the

on said shaft, a guide bar paralleling said ways and engaged with said spool, and means for adjusting the position of said guide bar laterally respecting said ways, the position adjusting means comprising links supporting the guide bar for maintaining it substantially parallel to the path of movement of said shaft in said ways, and. a'screw having a nut threaded thereon, the screw having means for its rotation and the nut having a connection with said guide bar for, effecting movementftheredf. 'upOnsai'd links, in .a. direction having a component axially of said shaft. 7

3. The combination with a support comprising inclined ways and a parent roll shaft mounted in said ways, and a second shaft havinga conver ting' ma chine connection, of a driving drum in operative driven connection with the second shaft and disposed in a position toward which said parent roll shaft rolls in said waysfor engagement with a parent roll mounted on the ha fir t .eniioned. f h 1iv 9 a Web th 'a' lineal speed controlled by d for adjusting said bar laterally resp'c said directioi ifof" movem nt wh reby'to diust the'axial po ition of'said shaft; and armrest roll carried therbyf' 4, The combination with a support comprising inclinedlwaysiand'afparnt roll sha'ft med ates in: said ways; and a second shaft having a pair: 'vertinginachine connection; of a drivifig"drfifii' in operativedriven con ection withthe'seenc toward. said drum, said -shaft bein g adapted :to 7

Ice-supported from said drum by a parent roll mounted on said shaft and contacting the drum, and. means for controlling the axial -positiori" of saidshaft in its movement down said ways 'said position controlling means comprising a spool shaft and disp'osed'in" a position toward wliich saidp'aife'iit roll shaft-rolls insaid Waysforen gegeme nvwith a parent Toll "mounted on "the shaft first mentioned for the delivryof afwb therefrom at a lineal speed controlled by said drumQtheperiphery' of the drum being discontin'u'c us, in further combination with guide. collars mounted on the'pa'rent roll shaft, a bar engaged with said collars and extending parallel tothe movement of said shaft in said wa s, and m'ans for adjusting saidbar laterally respecting. the said direction of movement whereby tojadjust the axial position of said sh'aft,andia.parent roll carriedthereby, the said guide .bar being provided with. spaced mounting. linkspandian actuating nut; together withiaiscrewsprovided with a'.'hand wheel and meshing. with. said ,Ixiut for effecting a longitudinal movement; of said bar having a lateral component. in. thei,os.cilla-' tion of said links.

' SAMUEL J. CAMPBELL.

E E E C TED: The following references are of recordin the file of this patent:

onifrgo, TATEf

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