US2490685A - Mount for web rolls - Google Patents

Description

R. H. GREENE MOUNT FOR WEB ROLLS Dec. 6, 1949 6 SheetsSheet 1 Filed Nov. 8, 1946 /9 INVENTOR. BY5 Jrfwvrv.

Dec. 6, 1949 R. H. GREENE 2,490,685

MOUNT FOR WEB ROLLS Filed Nov. 8, 1946 6 Sheets-Sheet 2 Dec. 6, 1949 R. H. GREENE MOUNT FOR WEB ROLLS 6 Sheets-Sheet 3 Filed Nov. 8, 1946 IN V EN TOR.

Dec. 6, 1949 R. H. GREENE 2,490,685

MOUNT FOR WEB ROLLS Filed Nov. 8, 1946 6 Sheets-Sheet 4 g; L W

CIL 7g 0 a Z 7/ 72 f M INVENTOR.

. 6, 1949 R. H. GREENE MOUNT FOR WEB ROLLS 6 Sheets-Sheet 5 Filed NOV. 8, 1946 IN VEN TOR. QW

Dec. 6, '1949 Filed Nov. 8, 1946 R. H. GREENE MOUNT FOR WEB ROL 6 Sh eets-Sheet s OSCILLATOR CONTROL x T T &/um,

IN V EN TOR.

Patented Dec. 6, 1949 UNITED STATES PATENT OFFICE MOUNT FOR wan ROLLS Robert H. Greene, Marion, Ind. Application November s, 1946, Serial No. 708,760

This invention relates to improvements in a mount for web rolls adapted particularly for elevating and supporting heavy web rolls in selected positions to be unwound and fed to a processing machine.

An object of the instant invention is to afford an apparatus in which is initially received from the floor level of its situs, a heavy web roll to be subsequently elevated and adjusted into a selected position as required for unwinding of the roll while thus supported, all of which isaccomplished with but little expenditure of physical effort upon the part of an operator.

Another object of the invention is to providepower-driven apparatus for handing a heavy web roll and supporting it in position for unwinding.

A further object of the invention is to construct a power driven apparatus for handling heavy web rolls of various lengths and supporting the roll in an accurately adjusted position relative to the processing machine that receives the web from the roll.

And a still further object of the invention is the provision of a power-driven machine in which a heavy web roll is secured accurately on supports therefor and'hoisted to a predetermined eleva-'.v tion, and manually operated means by which to bodily move the hoisting and supporting apparatus together with the web roll into selected positions.

Other objects and advantages of the invention appear in the following description.

An illustrative embodiment of the invention is shown in the accompanying drawings, in which:

Fig 1 is a side elevational view of an apparatus in which the invention is incorporated;

Fig 2 is a top plan view of the structure shown in Fig 1;

6 Claims. (Cl. 242-58).

Fig. 3 is an inner end elevational view of one of the elevating and supporting stands, the base of the machine being in transverse section;

Fig. 4 is a front end elevational view of the other elevating and supporting stands;

Fig. 5 is a fragmentary end elevational view of one of the oscillators mounted on the base for the machine, the base being in section;

Fig. 6 is a detail elevational view of the manually operated adjusting mechanism, parts be-- ing broken away;

Fig. "7 is a. fragmentary detail side elevational view of one of the oscillators, partially in section;

Fig. 8 is a detail side elevational view of a magnetic brake for certain of the motors;

Fig. 9 is a side elevational view of one of the roll chucks used in the machine, partially in section;

Fig. 10 is a front end view projected from Fig. 9; and

Fig. 11 is a diagram of the electric wiring for the apparatus.

The illustrative embodiment of the invention consists of two stands indicated generally by A and B arranged in opposing positions on a sta- .tionary base I upon which both stands are movable, there being provided rollers 2 secured to the stands. by brackets 3 arranged so the rollers travel between the flanges of the channel rails I of the base.

Each stand consists of a frame having parallel uprights 5-6 connected together at their lower ends at each side thereof by side bars I that override the corresponding base channel rails 4 out of contact therewith. An oscillator (Fig. 7) is mounted in each of said frames consisting of a head-block 8 and a tail-block 9 spaced apart from each other and connected together by divergent arms l0, each having a hub H-l2 that has bearing in the coresponding uprights 5-6 so that the oscillators are axially alined. Each of said head-blocks has a radial extension l3, on the outer end of which is secured a U- shaped frame I4, in the arms of which is mounted for rotation an arbor I5. The arbors are normally axially alined and have on their inner ends corresponding roll-chucks it. One of the arbors has thereon a hub [5' that is engaged by a brake-shoe I! connected with its frame, as at l8, and which is tightened about the hub l5 by a hand-screw i9 to retard rotation of the arbor.

The stands A and B are connected together by a coupling shaft 20 that has turning movement in a pendant lug 2| on the frame for the stand A and is threaded in another lug 22 on the frame of the other stand B, so that upon turning of the shaft the stand B is moved toward or from the stand A accordingly as the shaft is turned. The shaft 20 is actuated by a reversible motor C through the medium of a speed reducing gear 23 and a chain and sprocket connection 24.

The oscillator for each stand is individually actuated by means of a corresponding reversible motor D--E through the medium of a speed reduc ng gear 25, a dual chain and sprocket connection 26 including a sprocketed countershaft 21, that is mounted in pendant brackets 28 on the frame for the corresponding stand, and a slack chain 29, engaging the countershaft, that artially encompasses the head 8 of the oscillator, the extremities of said chain being secured to the perimeter of the head by bolts 30. Provision is made for taking up the slack of the chain 29,

preferably consisting of a spring-pressed sliding bar 3| on the stand structure provided with a roller 32 that bears against the chain, there being provided a screw 33 for adjustment of the take-up device.

Endwise travel of the stands A-B onthe base is affected by mechanism consisting of a transverse shaft 34 that is suspended in brackets 35 1'01 turning movement which has pinions 36 on its ends that engage corresponding racks 31 secured on the channel rails I so that, upon rotation of the shaft 34, the stands are motivated on the baselengthwise. Theshafttlisactuatedbya worm ll, secured on the lower end of an operating post 3!, that engages a worm-wheel II on the pinion shaft 34. The post is rotatably mounted in brackets II and 42 that are mounted respectively on the pinion-shaft 3i and the frame for the stand A, the upper end of the post having thereon a manually-operated lever 13 for turning same. As the stand A is motivated, the other standIBtravelslikewisethroughthem-ediumoi the coupling shaft 2|.

Each stand A--B has connected therewith a transverse guide-way N, by means of bars II, the

ends of which project outwardly beyond the base I. Preferably, the guide-way is formed of two channel bars 84' spaced apart from each other to afford a slot It. The guide-way II has movably mounted therein a slotted cam-plate 41 that projects up through the slot 48, and has a supportingbraceaandonsaidchannelbarsare mounted stationary cam-plates ll having braces b, the cam-plates It being disposed astride oi the movable cam-plate. The slots l'l'll' in said cam-plates are divergent and have extending therethrough a follower-pin I! the ends of which areconnectedby means oflinksflwithawrist pin ii that proiects from the head of the corresponding oscillator. Thus, when the oscillator is rotated to loading position the cam-plate 41 is caused to travel to the position indicated in dottedlines (Fig. 3).

Each guide-way 44 has a supplemental guidefrarne 52 consisting preferably of a pair of angle bars N that overlie the base, brackets I4 being provided for securing the guide-way and guideframe together.

In each guide-frame i2 is disposed a traveling trayltinwhicharesupportedaseriesoiidling rollers 56 that extend hamversely with respect tothebase l,thetraybeingprovidedwithrollers ll thatride uponthebarsil. Eachtrayisconnected with the corresponding movable camplate I! by means of a bracket 58. Thus, the roller tray is moved in its guide frame according to the travel of the cam-plate 41 (Fig. 3).

Preferably, the guide-frame I! is provided with rollers ilbywhich itissupportedonthebase channelrails,thustopermitfreetravelofthe standBonthebasewhentherollertl-aysare loaded with the web roll.

In Figs. 9 and 10 is shown the roll chuck II which consists of the arbor ll mounted for rotation in the frame ll. The outer projecting end portion of the arbor is encompased by ,a concentric axially movable collar It provided with a series of pockets it". In the outer end portion of the arbor are a series of radialb disposed chamfers 6| that slant convergently toward the outer end of the arbor. In each chamfer is disposed a movable jaw ii, the rear end of which has an L-shaped extension I! that is disposed in the corresponding pocket ll", andthe forward endolthejawhasanextensionflthatprotrudes into a hollow tapered tip '4 secured on the end of the arbor. Compression springs I, disposed in the pockets it", bear upon the L-shaped extensions of the jaws to urge outward movement of the jaws toward closed position, and an annular series of other springs it are disposed around the arbor between said collar and a buttvplate"onsuidai'borthattendtomovethe rangement, when the collar is moved backward upon the arbor, the jaws expand outwardly into engaging position, guided by the extensions 02 and it in said pockets and tip.

. The motors D and E are reversible and synchronized so as to rotate simultaneously clockwise or counter-clockwise, and thus the oscillators are both moved selectivelyi into loading or supporting position (Fig. 4) accordingly as .the motors are energized.

Each of the oscillator activating motors 13-12 have in connection therewith a magneticallyoperated brake it (Figs. 1-8) provided with a solenoid is, a brake lever II and shoe II that has frictional engagement with a drum 12 on the motor-shaft it. The purpose of the brake is to prevent the motor from coasting while deenergized.

The motor 0 for actuating the coupling shaft 2|, and the motors D-E for actuating the osciliators, are energized by current derived from a suitable source of power (not shown) through main conductors 14 and suitable intermediate electrical appliances and connections, commonly known, and exemplified in the diagram (Fig. 11). In the arrangement shown, the group of connections indicated generally by F, switches I5 and It, normally open, are so connected that the closing of one or the other of the switches causes the motor 0 to rotate forward or reverse, resulting in rotation of the coupling shaft 2| and conthe stand A accordingly.

sequent movement of the stand B toward or from The group of connections,generallyindicatedbyG,areforthemain control of the motors D and E that activate the oscillators, there being provided forward and reverse, normally open, switches 11 and II so connectedthattheclosingofon'eortheotherof said switches causes simultaneous rotation of said motor in one direction or the other accordingw, and consequent movement of the oscillators into loading or roll-supporting position.

Another group of connections, generally indicated by H, is for the ing control of the motor 3 that actuates the oscillator on the stand 13 by which the motor is activated, individually, and independently with respect to the motor D, thus to enable the operator to maneuver the roll chuck It on the stand B into alinement with the chuck on theotherstandAasoccasionrequires. This is accomplished by selectively closing the forward or reverse switches 19-", thus to cause turning movement of the oscillator on the stand B relative to the oscillator on the other stand A. selectively in one direction or the other accordingly as said switches are manipulated.

Ope ation In utilizing the invention, the machine is preferably installed so the tops of the rollers II in the traveling trays are located approximately at the iioorlevelofthesitussothatawebmllJmay readily be rolled directly from the floor onto the rollers of both trays when the trays and the oscillators are in loading position (Fig. 3) and the stands are separated from each other sufiieiently to allow the roll to clear the chucks ll.

After the roll has been deposited on the rollers and its bore alined with the chucks the stand B is drawn toward the stand A by operating the motor 0, whereupon the chucks enter the bore of the roll at the ends thereof, and the roll is clamped endwise between the collars it on the collar toward Jaw-closing position. By this arll chucks, whereupon. the iawsof the chuck expand and firmly engage the surrounding interior wall of the roll. The roll is then elevated to supporting position by closing the appropriate switch II or 18, as the case may be, thus causing the oscillators to simultaneously turn upon their axes. After thus elevating the roll into unwinding position, it is jockeyed into parallelism with the processing machines (not shown) that receives the web, by manipulation of the switches I9 and 80. While the stands are thus secured relatively in position by the coupling shaft 20, the position of the web roll relative to the processing machine is further adjusted by bodily moving the stands lengthwise on the base I in one direction or the other by manipulation of the lever 43.

The web is then unwound in the usual manner from the roll as it is drawn into the processing machine until exhausted. During the unwinding operation the brake I1 is tightened or loosened as may be required to prevent racing of the roll or vary the tension of the web between the roller and the processing machine.

The oscillators are then returned to loading position, by closing the appropriate switch l'|18, in readiness for renewal of the loading operation. A particular advantage of the invention is that the sequence of operations required for each complete performance is accomplished expeditiously by one operator.

Variations from the particular construction above disclosed may beresorted to by the exercise of skill in the art, without departure from the spirit or scope of the invention.

What I claim is:

l. A mount for elevating and supporting web rolls consisting of a stationary base having longitudinal parallel channel rails, two stands oppositely disposed provided with supporting rollers engaging said rails, an oscillator mounted for rotary movement in each stand, the axes thereof being alined, roll-engaging chucks revolvably supported on said oscillators disposed normally upon a common axis, one of said chucks having a brake, a transverse guide-way connected with the inner end of each stand provided with mova- =ble and stationary overlapping and oppositely inclined cam-plates, links connected with said oscillators and the corresponding cam-plates whereby to actuate the movable cam-plates as the oscillators are turned, a transverse guide-frame secured to each guide-way, a tray having guided movement in each frame and secured to the corresponding movable cam-plate, a reversible motor for each stand provided with mechanism connected with the oscillator thereon to activate said oscillator, a coupling shaft mounted for rotation in one frame, having threaded connection with the other frame and provided with another reversible motor on one of said frames to actuate said coupling shaft whereby to move one stand relative to the other on said base, and rack and pinion mechanism in connection with one of the stands and the base provided with activating means therefor whereby to adjustably move said stands bodily on said base.

2. Apparatus for handling web rolls consisting of two opposing wheeled stands mounted on a common base, oscillators mounted in said stands axially alined and provided with individual reversible motor-driven mechanism whereby t0 acti- 6 bio cam-plates, a connection between the corresponding oscillator and cam-plates whereby to activate the movable cam-plate, transverse guide frames connected with said guide-ways, roller trays having guided movement in said guide frames and connected with the corresponding movable cam-plates, the arrangement being such that the roller trays and the chucks are moved into loading position simultaneously, or reversely moved accordingly as the oscillators are turned, a revolvable coupling shaft supported in one stand having threaded connection with the other stand and provided with activating means therefor whereby to relatively adjust said stands lengthwise on the base, a gear mechanism connecting one of said stands and said base provided with activating means by which said stands are bodily adjusted lengthwise on the base, and swltoh-conlators mounted respectively in said stands provided with individual motors and connected vate said oscillators, roll-engaging chucks eccenmechanisms for activating said oscillators, opposing web roll-supporting chucks on said oscillators, a transverse guide-way and guide-frame in connection with each stand, movable and stationary cam-plates on each guide-way having an operative connection with the corresponding oscillator whereby to activate the movable camplate as the oscillator is turned, a tray having rollers therein mounted in the guide-frame and connected with the corresponding movable camplate whereby the trays are automatically moved into loading position when the oscillators are turned to a selected position, and switch-controlled electrical means for energizing said motors simultaneously or one of said motors independently.

4. An apparatus for handling web rolls, a pair of stands movably mounted upon a supporting base provided with alined oscillators having individual activating means therefor, opposing web roll chucks carried by said oscillators, transverse guide-frames in connection with each stand provided with a roller tray having guided movement therein, a mechanism'connected with each tray and the corresponding oscillator whereby the trays are moved automatically into loading position when the oscillators are turned to selected positions, a coupling shaft having actuating means therefor operatively connecting said stands I by which to adjust same relatively toward or from each other on said base, a gear mechanism on one of said stands operatively connected with said base and having actuating means therefor whereby said stands are bodily adjusted lengthwise on said base, and electrical means for simultaneously energizing the motors for said activating means or one of said motors independently whereby to elevate the web roll to unwinding position or aline said chucks.

5. Web roll handling apparatus consisting of a pair of opposing stands mounted on a base for lengthwise movement thereon. provided with 7 alined oscillators having opposing roll chucks supported thereon respectively, a coupling shaft gear mechanism carried by one or said stands and operatively connected with said base adapted to adlustably move said stands bodily on said base, individual activating means for each oscillator consisting of a reversible motor and chain sprocket mechanism connecting the motor with the corresponding oscillator whereby to turn said oscillators from one selected position to another, and switch-controlled electrical connections arranged for simultaneously energizing said motors or one or said motors independently. 6. In a web roll handling apparatus, two op posing stands movably mounted on a base, means for moving said stands on the base toward and from each other, axially alined oscillators in said stands each having a head and provided with roll-engaging and supporting means movable into loading or unwinding position accordingly as'the oscillators are turned, activating means for said oscillators each including a reversible motor, a slack chain partially encompassing the head of the corresponding oscillator and having a sprocket and chain connection with said motor whereby the oscillator is turned upon its axis a,seo,ees

oscillators to loading or unwinding position or to energize one of said motors independently for movement in either direction, and mechanism having activating means therefor connected with oneoithe stands andthebaseadaptedtoad- .iustably move said stands bodily on said base.

ROBERT H. GREENE.

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

UNITED STATES PATEN'I'S Number Name Date 1,671,685 Scott May 29, 1928 1,806,774 Webster May 28, 1931 1,874,904 Crafts-.2 Aug. 30, 1932 1,908,121 Crafts May 9, 1933 2,075,192 George Mar. 30, 1937 2,139,873 Yoder Dec. 13, 1938 Fouse Oct. 13, 1942

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