US2929572A - Turnover supply roll stand - Google Patents

Description

March 22, 1960 J. R. BAUMGARTNER ErAL TURNOVER SUPPLY ROLL STAND Filed June 6, 1957 6 Sheets-Sheet l NVENTORS P BY paula/,9m F\ G. 6 Ms March 22, 1960 J. R. BAUMGARTNER ETAL 2,929,572

TURNovER SUPPLY ROLL STAND Filed June 6, 1957 6 Sheets-Sheet 2 March 22, 1960 J. R. BAUMGARTNER ETAL 2,929,572

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March 22, 1960 J. R. BAUMGARTNER ETAL 2,929,572

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March 22, 1960 J. R; BAUMGARTNER ETAL 2,929,572

TURNOVER SUPPLY ROLL STAND Filed June 6, 1957 6 Sheets-Sheet 6 nited States Patent TURNOVER SUPPLY ROLL STAND .lohn R. Baumgartner and Peter Zernov, Milwaukee, Wis.,

assignors to Mercury Engineering Corporation, Milwaultee, Wis., a corporation of Wisconsin Application June 6, 1957, Serial No. 663,961

4 Claims. (Cl. 242-58) The invention relates to turnover supply roll stands and more particularly to such stands as used to carry heavy box board supply rolls to permit the ready unwinding or feeding od of the stock from one or the other of the rolls.

ln supply roll stands of the type above mentioned the heavy supply rolls, that may weigh 8000 pounds apiece, for example7 put heavy strains on the supporting shaft so that deections in this shaft cannot be prevented. It is, however, desirable to adjust this shaft lengthwise of its supports to bring the stock of the rolls into proper alinement with the stock feed mechanism of the machine supplied by these rolls. One object of the invention is to provide a novel roller support for the stock supporting shaft that permits its lengthwise adjustment without binding.

A further object of the invention is to permit an individual adjustment of each roll carrying arm to bring the roll carrying chuck members to a position where they can be brought into proper chucking relation with the supply roll to be carried.

A further object of the invention is to provide fluid pressure operated means for holding the roll carrying chucking members in journalled engagement with its stock roll with means for regulating the fluid pressure so that less pressure may be used as the stock is used up.

A further object of the invention is to provide an adjustably controlled power operated brake to prevent the stock roll from overrunning and maintain the desired tension in the stock as it is fed off of said roll.

The invention further consists in the several features hereinafter described and more particularly defined by claims at the conclusion hereof.

in the drawings:

Fig. l is a side elevation view of a roll stand embodying the invention and a portion of the machine supplied with stock therefrom;

Fig. 2 is a detailed side elevation view of the roll stand, parts being broken away;

1Eig. 3 is an end elevation view of the roll stand, parts being broken away and parts being shown in section;

Fig. 4 is a detailed vertical sectional view taken on the line 4 4 of Fig. l;

Fig. 5 is a detailed vertical sectional view taken on the line 5-5 of Fig. 2;

Fig. 6 is a detailed vertical sectional view taken on the line 6 6 of Fig. 4;

Fig. 7 is a detailed vertical sectional View taken on the line 7 7 of Fig. 4;

Fig. 8 is a detailed side elevation view of the brake mechanism, parts being broken away;

Fig. 9 is a detailed vertical sectional view taken on the line 9--9 of Fig. 8;

Fig. l() is a detailed vertical sectional view taken on the line itl-10 of Fig. 9;

Fig. 1l is a detailed vertical sectional view taken on the line 11-11 of Fig. l;

Fig. l2 is a fluid pressure power diagram.

.rice

As in all turnover roll stands of this general type, the stand is designed to carry a supply roll R at the ends of a pair of tiltable roll carrying arms i3 and 14 so that, when stock is being carried off of one of the rolls, another roll may be connected to the arms.

Referring to Figs. l to 3, a pair of spaced uprights 15 are provided in which a supporting shaft 16 carrying the arms i3 and 14 is mounted, the shaft 16 being turnable to dierent angular positions by a reversible electric motor 17 suitably mounted on one of the uprights and having a suitable geared down connection including an output shaft 18 provided with a gear 19 meshing with a gear 2t) on a transmission shaft 2i suitably mounted in bearings carried by said upright and a frame bracket 22 secured to said upright. The shaft 21 carries a long gear 23 that meshes with a large gear 24 that is secured to the shaft )i6 by clamping bolts 2S and a key 26.

Referring to Figs. 4 and 5, each end of the shaft 16 is of reduced cross section. Cncv of these reduced end portions has 'the inner races of ball bearing journals 27 mounted thereon and spaced apart by a sleeve 28, this assembly being clamped in position by an end cap 29 clamped against the outer of said bearing journals by cap screws 30, the outer races of said bearings 27 being fixed to an outer sleeve member 31. The other of said reduced end portions has the inner races of ball bearing journals 32 mounted thereon and spaced apart by a sleeve 33, this assembly together with a short spacer sleeve 34 being clamped in position by an end cap 35 that is clamped against the outer side of the hub of the gear 24 by cap screws 36, the other side of said hub abutting the sleeve 34. The outer races of the bearing journals 32 are fixed to a sleeve 37. The shaft 16 is supported in the uprights 15 by a supporting connection between the sleeve 31 or 37 with its associated upright.

The supporting connection of each sleeve 3l or 37 with its upright being the same, a description of one such connection will suffice. Referring to Figs. 4 and 6, I have shown the sleeve 31 as mounted between a series of equidistantly spaced radially disposed rollers 3S whose faces are curved to fit the curvature of said sleeve. Each roller 33 has a roller bearing journal 39 mounted on a shaft member 4i? whose ends 41 and 42 are eccentrically disposed relative 'to the axis of the roller carrying portion of the shaft and mounted in arms 43 carried by the upright. Each shaft member 4i) is in the form of a bolt which has a shoulder 44 at one end so that it may be clamped in the desired adjusted position relative to one of said arms 43 by a nut 45 and washer 46, the eccentric mounting of said shaft members 40 permitting an adjustment of the rollers 33 relative to the sleeve 31 so as to accurately center this end of the shaft 16 with the other end of the shaft which is equipped with similar rollers for the sleeve 37. The above arrangement simplilies the mounting of the rollers as it permits the brackets 43 being welded to the frame and obviates the making of a carefully located bore in said brackets for the roller carrying pin. These sets of supporting rollers 38 at each end of the shaft permit a lengthwise movement of the shaft 16 relative to the uprights 15.

For moving the shaft 16 to any desired lengthwise position relative to the uprights, the sleeve 3l has feed screw mountings 47 and 4S thereon adapted to receive'a feed screw 49 that works in a nut 50 iixedly mounted in a wall of one of the uprights 15, said screw being held against lengthwise movement relative to mounting 47 by a pair of spaced collars 51 and 52 secured thereto, the collar 52 forming the hub of a handwheel 53. Turning of the handwheel 53 will through the xedly positioned nut 5t) act to move the sleeve 31 and consequently the shaft 16 to the right or left of its position shown in Fio. 4 to per 3 mit the arms 13 and 14 to be positioned to bring the supply rolls carried thereby into the desired stock feeding position.

As the width ofstock/Vrolls vary, means are provided for varying the lengthwise position of each arm 173 or 14 relative to the shaft 16. In each instance this means includes a rack 54 tixedly mounted in a keyway inV the shaft 16 and keyway in the'arm and meshing with a gear 1,

55 carried by a shaft 56 journalled in the arm, said shaft 56 having an exteriorly disposed wrench engaging head 57 so that the turning of the shaft 56 will through the rack 54 cause arlengthwise movement of the arm 13 or 14 relameans of roller journal bearings 62. Shaft 61 carries a brake disk or plate 63 adapted to be engaged on one side by Vbrake lining 64 on a brake member 65 and on its Y other side by similar lining 66 on a. brake member 67. yThe members 65 and 67 have cooperative hinge bosses 58 and the arm 14 hinge bosses 69adapted to receive a hinge pin 76. Where pin 70 extends through the hinge bosses V6h, it is formed as eccentrics 70a so that by the Y angular adjustment of said pin relative to said bosses the operative relation and hence the brake clearance of the membersr6 and 67 relative to each other may be deteri mined. It will be noted that either of the brake Vmembers actually can swing relative to the pin 70. To apply the' brake, an air cylinder 71 yis mounted on the upper end ofthe brake member 65 Vand has a piston 72 working ly move the piston 72 to a brake reease position.

Referring to Figs. 3 and ll, a chuck including a roll AengagingV chuck plate 75 and its supporting shaft 76 is slideably mounted in each end of the arm 13 in bearings 77, said shaft forming the rodV end of a piston V78 working in a double acting air cylinder 79 mounted on saidY arm. Entrance of compressed air into the forward end of cylinder 79 moves its associated chuck plate 75 toward the right as viewed in Figs. 3 and l1 to bring'it into operative engagement with a supply roll R and hold this roll between it and the associated chuck plate 60 on the arm 14 so that said roll may turn on the chuck plate 75 and with the chuck plate 60 to permit the withdrawal of stock S'frorn said roll as determined by feed mechanism such'as indicated generally at F in Fig. l. Y

Referring to Fig. 12, a supply pipe 80 for compressed vair or other suitable source of lliuid pressurephas a shut off valve 81 mounted therein and branch connections 82 and S3 which in turn have'branch connections 8,4 and S5.

of the arm 174. rlfhe inlet for the other passage 91 connects with an annular groove 94 formed in the sleeve 93 rwhich in turn connects with a section 84h of Vthe other connector 84 Vthat connects with the brake cylinder at the other end of the arm-14. Referring to-Figs. 3 and 4, a portion of each branch connector 85 connects with a separate drilledrpassage 95 in the shaft 16. The inlet of one of the passages 95 connects with an annular groove 96 formed in a sleeve 97 surrounding a portion of shaft i6 and which has an outlet that connects with a section $561 of a branch 85 that connects with the valve 88 for the chuck cylinder at one end of arm 13. The inlet for the other passage 95 connects with an annular groove 98 in sleeve 97 which in turn connects with a section SSI) of the other connector 85 that connects with the valve 88 for the chuck cylinder at the other end of the arm 13. Each of the sleeves 93 and 97 is provided with sealing O- rings 99.

With the above construction, the motor 17 under the coutrolof the operator is operated to swing the arms 13 and Y:t4 to bring the'chuck members at one end of these arms'down to a position where a supply roll R on the i floor can be rolled to a position between the chucking members. The bolts 59 for one or the other or both of the arms 13 vand-1li .are loosened so that by turning the screw .or screws'57 the arms 13 and 14imay be moved inwardly to bring them intok approximate chuckingV position. rl`he valve 38 for the chucking member 75 is then operated to supply compressed air to the front end of the associated cylinder 79 at a pressure determined by the setting of the valve 87 to move the chuck 75 outwardly to bring both chuck plates 75 and 6G into gripping engagement with the stock roll. The motor 17 is then voperated to swing the arms 13 and 14 to raise the stockroll.-to a feed ol position and the end of the stock started through the feed mechanism F. If Vunder these conditions the stock does not line up properly with the feed rolls of mechanism F, the turning of the handwheel 53 in theV proper direction will'move the shaft 16 so that the desired alinement is secured. As the stockV Vis fed off of the suspended rotat- Y. ing roll, the operator may from time to time change the Branch connection 33 hasr'a manually adjustable prerssure regu'ator valve 83a therein.' Each branch conair cylinders supplied thereby swingwith the arms rotary l supply connections have to be provided between parts of i its branches. Referring to Figs. 3 and 5, a'portion of each branch connector 84 connects with a Separate ydrilled pas- Ysage 9.1in the shaft 16. The inlet for one of these passages 91 connects with an annular groove 92 formed in a jps'leeve 93'surrounding a portion of shaft 16 and which has an outlet that connects with a section 84a of a branch 84 thatrconnectrs with the brake cylinder 71 on one end adjustment of'the valve 86a for the brake cylinder for Vthe chuck 6i) to decrease' the braking pressure as the stock is used up and also, change the adjustment of the valve 83a to decrease the holding air pressure for the chuck 75, this last adjustment being dependent upon the Vtype of core used for the supplyiroll. Where the Vcore is of steel, adjustment of the valve 83a may not be necessary, but if the core is of paper'or no special core is provided, then adjustment of the valve 83a to decrease the chucking pressure from time to time as the stock is used up may be desirable. being used up, another supply roll may be positioned ad- Y jacent the lowered end of the other Vends of the arms for connection with its associated chucks, and since the preliminary ,adjustment for receiving the .rolls has been made, itfmay vbe .connected to its chucks bythe operationof its valve 8S to bring its chucks'il and 75 into chucking relation with this second supply roll. l,It is to be noted that the cylinders 79 are'double acting cylinders so that the chuck 75 Vunder the setting of the valve 38 is moved positively .towardV or away from its supporting arm 13.

We desire it to be understood that this invention is not to be:v limited to any particular form or arrangement of partsY except in so far as such limitations are included in theappended claims. Y

What we claim as our linvention is:

1. ln a turnover type stock roll supply stand, the combination of a'pair of spaced uprights, a roll supporting shaft having roll carrying Varms secured thereto, a connection between each end portion of the shaft with an upright comprising a sleeve in which each Y shaft end is journalled Yand a Series of at least three radially disposed equidistantly circumferentially spaced grooved ro'lers engaging the outer surface of said sleeve and individually While this first stock roll is assaera radially adjustable journals for said rollers mounted on their associated upright, one of said rollers engaging the bottom portion of said sleeve, and means for moving said shaft over said rollers and lengthwise of said uprights.

2. A turnover type stock roll supply stand as defined in claim 1, wherein the rollers have their journals mounted on shafts eccentrically adjustaoly mounted in braciiets on 'their associated upright.

3. In a turnover type stock roll supply stand, the combnation or" a pair of spaced uprights, a roll supporting shaft mounted to turn in said uprights, a pair of spaced stock rol supporting arms on said shaft, a chuck member journalled in one of said arms, a cooperative oppositely sposed clrucking member slidablj, mounted in the other of said arms, oper-- ed rluid pressure operated means for moving said sl ably mounted member, variable pressure braking means for said chuck member and controllable by the operator during an nnwinding operation, and Enid connections for said uid pressure operated means, said connections passing through portions of said supporting shaft and forming a rotary seal therewith before connecting with said uid operating means.

4. n a turnover type stock roll suppy stand, the combination of a pair of spaced uprights, a roll supporting shaft mounted to turn in said uprights, a pair of spaced sto-:k roll supporting arms on said shaft, a chuck member journalled in one of said arms, a cooperative power open ated reciprocatory chuck member slidably mounted in the other of said arms, tuid pressure braking means for said r'irst named chuck member, operator controlled means for varying the braking pressure of said braking means, and uid pressure connections for said braking means, said connections passing through said supporting shaft and forming a rotary seal therewith.

References Cited in the le of this patent UNITED STATES PATENTS 627,665 Braun June 27, 1&99 2,055,371 Wood Sept. 22, 1936 2,357,259 Huck et a1. Aug. 29, 1944 2,495,637 Behrens Aug, 13, 1946 2,663,512 Erhardt Dec. 22, 1953 2,677,870 Frst May 11, 1954

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