US2535815A

US2535815A - Mill roll stand

Info

Publication number: US2535815A
Application number: US779982A
Authority: US
Inventors: Edward B Seeger
Original assignee: Samuel M Langston Co
Current assignee: Samuel M Langston Co
Priority date: 1947-10-15
Filing date: 1947-10-15
Publication date: 1950-12-26
Anticipated expiration: 1967-12-26

Description

5- B. SEEGER MILL ROLL STAND Dec. 26, 1950 3 Shets-Sheet 1 Filed Oct. 15, 1947 m a r M m R a N m w R w g m w HT W N m 5 A i M ,w 7 Z M E. B. SEEGER MILL ROLL STAND Dec. 26, 1950 3 Sheets-Sheet 2 Filed Oct. 15. 1947 INVENTOR. EdwafiaB.Jege/= ATTORNEYS Dec. 26, 1950 E. B. S EEGER 2,535,315

MILL ROLL STAND Filed 001". l5fl947 V 3 Sheets-Sheet 3 IN VEN TOR. Edward B. Seegger Patented Dec. 26, 1950 MILL ROLL STAND Edward B. Seeger, Philadelphia, Pa., assignor to Samuel M. Langston 00., Camden, N. J., a corporation of New Jersey Application October 15, 1947, Serial No. 779,982

This invention relates to apparatus for supporting large and heavy rolls of paper or analogous sheet material so that the roll may rotate and the sheet be delivered to a machine in which it is operated on or utilized, as for instance, a machine for forming single-faced or doublefaced corrugated paper.

In such mill roll stands it is common practice to employ a large and heavy shaft which projects through the center of the roll, and on which shaft the roll is secured and centered by a pair of conical chucks forced into the ends of the roll. The assembly of roll, shaft and chucks is conveyed to the stand, lifted into position, and the ends of the shaft rotatably supported to permit unwinding of the roll. A mill roll stand of that type is shown in the Sieg Patent 1,605,568, issued November 2, 1926.

In spite of the many advantages of that type ofconstruction, but because of the heavy weight of the shaft, and the necessary labor in removing it, pushing it into the roll, lifting the roll and shaft, and mounting the shaft on shaft supports, the industry is changing over to a type of construction in which the roll is first positioned between a pair of rotatable chucks on separate supports on the stand. These supports are movable toward and from each other to force the chucks into the end of the roll, and are vertically movableto lift the roll to the position desired for the.

delivery of the sheet from the roll. Machines of that type are shown in various patents, includingthe Behrens Patent 2,405,637 and the Sieg ap-. plication Serial No. 753,689.

.In machines of that, type it is necessary to provide for a wide range of adjustment of the chuck supports and the lifting means therefor toward and from each other to take rolls of different lengths, andsimultaneous adjustment in the same direction with the roll to bring the latter to the proper sheet delivery position in respect to the machine receiving and actingon the sheet. a

The main object of my invention is to obviate the objections to both types of constructions and to provide a cheaper, simpler, and more easily operated construction.

In accomplishing this and other objects I utilize a shaft having a pair of roll centering and supporting chucks, as in the first mentioned type of mill roll stand, but I make it unnecessary to remove the shaft from the machine for assembly with the roll, and unnecessary to effect any lateral adjustment of the shaft supports to take care of' rolls of different lengths, as in the second mentioned type of machine.

In carrying out my invention I utilize a shaft and chucks thereonto support the roll, as in Sieg Patent 1,605,568, and provide simple and effective means whereby the roll may be mounted on the.

1 Claim. (Cl. 242-58) 2 shaft without removing the shaft from the stand. With my improved stand the roll may be con-. veyed to the stand, slipped endwise onto the shaft, and properly centered and secured thereto while the shaft remains supported by the stand. There-: fore, no removal, transportation and remounting of the heavy shaft is required. 1

In certain types of machines the roll is supported by and between a pair of members which may move in vertical planes to lift the roll to; the sheet delivering position. In my improved apparatus in its preferred form, two such memhere are provided, but as an important feature. of my invention I provide means whereby the shaft may be supported only at one end and by: only one of said members, while the other memher is released from and moved away from theshaft. With the shaft supported by the stand and at the proper elevation, the roll may be con-. veyed on a truck or dolly to the proper position. and moved endwise onto the shaft. The roll is then secured on and concentric with the shaft; and the other shaft supporting member moved, back into operative position and secured to the; shaft. The shaft supports and the shaft may then be raised to lift the roll clear of the truck; and to the desired elevation so that the roll may rotate and the sheet be unwound. Thus no part of the machine other than one of the chucks needbe removed in mounting a new roll of sheet ma: terial on the shaft of the stand.

In moving the roll endwise onto the shaft it may be stopped in approximately the proper position in respect to the machine to which the;

sheet is to be delivered, and therefore very little; endwise adjustment of the roll or shaft supports is required after the other shaft support is broughtinto position and secured to the shaft,- and after the two supports are moved upwardly. simultaneously to lift the roll to the proper elevation. I

As an important feature of my invention, one of the shaft supports includes a sleeve of such length that the shaft may be supported from only one end and solely by this sleeve, during the endwise movement of the roll onto the shaft. As a further important feature of my invention I provide the other shaft support with a clamping part whereby it may be released from the shaft; and moved out of the way to permit the endwise; movement of the roll onto the shaft. 1

The shaft supports are preferably in the form of a pair of arms having a common pivotal cen-- ter, with power means for simultaneously swing-i ing them up or down, and the arm having the; clamping part is provided with independent means for swinging that arm out of the path of the roll being moved endwise onto the shaft. It is not necessary that the bearing sleeve for the. shaft be of such length. or strength that it alone;

will support both the shaft and the roll, because the weight of the roll is supported by the truck or dolly until after the secondroll support is returned to operating position and secured to the shaft.

The shaft support, which is readily disengageable from the shaft and movable out of the path of the roll while the latter is being moved endwise onto the shaft, may move in. a plane including the axis of the shaft or in a plane at right angles to said axis, or in any other suitable manner.

In the accompanying drawings there are shown two embodiments of my invention. In these drawings:

Fig; lis afront view of one-form and showing onesshaft support raised and a roll of'paperabout to: be moved onto the shaft.

Fig. 2 is. an end view'and shows supports for two? shafts.

Fig. v3 is a section on alarger scale and taken on the line 3-3 of Fig. 1.

Fig. 4 is a frontview of a different form, and

Fig. 5. is an end' view of one of the shaft supports.

In theform shown in .Figs. 1, 2 and 3 there are providedtwo frames Hlandl l, which are similar inmost respectaand carry the arms |2s and i3 which'support, raise and lower the .rollshaft. Hi, and which are pivotally mounted onhorizontally aligned shafts l5 mounted inthe two frames. So far as the: present invention is concerned any suitable means may be employed for: supporting and swinging thearms up and down simultaneously in parallel vertical planes to raise and lower the roll shaft It. In Fig. 2 I have shown somewhat diagrammaticall araising andlowering means similar-to that shown inthe Sieg application Serial No. 753,689.

As shown in Fig. 2, each arm'has a short extension beyond the pivotal supporting shaft I5; and each such extension has a nut |8 journaled therein and threaded on a substantialh vertical screw l9, which latter is seated on a thrust bearing 26. A drive shaft 2-! extends lengthwise of thestand and is provided with a worm gear 22 (see Fig. '3) meshing with a gear Zlopertttively connectedto the'vertical shaft iii. Becausethisvertical shaft must swing somewhat as the arm swings onits pivotal center I5,- the gear 24 is connected to the shaft bysome form'of ball and-socket joint or other connection which will permit the gear to'remain in proper mesh with the worm gear 22 duringtilting of the shaft IS. The shaft 2| maybe driven'from any suitable source of power, such as a reversible electric motor 25 mounted on the frame IE3; for

swinging-the arms l2 and I3 and thus raising orlowering the shaft M which is'carried by said arms.

As as important feature of my invention means are provided for'raising and lowering the arm [3 while the arm i2 is at'rest andsupports the roll shaft. One means for accomplishing this is shown particularlyin Fig. 3. The worm gear 22 which operates the arm I2 is not keyed to the shaft 2!, but has interlocking connection such as a socket 36 receiving a jaw 3| ona sleeve 32. which is keyed to the shaft. By moving the sleeve.32 to the right from the position shown, the jaw 3| comes out of the socket and theshaft 21 may rotate without rotating the'WOI'm gear. The sleeve 32 may be normally. pressedinto locking positiontby a spring 33, but whenzthe sleeve isipulled to the. right by the handle 34,. a: clogv 3.5.

drops behind a shoulder on the sleeve and prevents the spring from returning the collar into locking engagement with the worm gear. No such disengageable lock is provided for the arm |3 which will be raised or lowered whenever the motor 26 is operated to rotate the shaft 2|.

As a further feature of the invention, the arm l3 is provided with a bearing sleeve for the shaft 14', and this sleeve is formed of two sections 4t and 1|, hinged together and provided with a locking means such as a pivoted bolt 12. When te bolt is released the lower half 4| of the bearing sleeve may drop down as shown in Fig. 2, and the arm l3 may be raised without raising the shaft M. The other arm l2 has a bearing sleeve 43 which does not open and which is. of such length that it can support the shaft M from one end only, when the other arm I3 is released and raised. The shaft may be locked against endwise-movement in respect to the sleeve 63 by collars M and tiengaging the ends of the sleeve 53, and is provided with a brake 6?.

When it is desired to rotatably mount a roll of the sheet material on the'roll stand, the shaft I4 is lowered to the desired position; the arm I2 is released from. the shaft 2| by pulling the handle 34to the right andlocking it thereby the dog or catch 35, and the shaft 2| is rotated to lift the arm l3 to the required extent. The roll A on a suitable truck or dolly B is brought to a position in alignment with the shaft 2| and wheeled alon to move the roll endwiseonto the shaft, and until it reaches the proper position in respect to the machine to which the sheet is to be delivered (for instance to the position shown in dotted linesA') and onto, a conical chuck 50 which is. secured in the proper position on the'shaft. The shaft I4 is preferably pointed at the end tofacilitate guiding the roll onto it. A second conical chuck'5l is slipped onto the shaft and forced into theend of the roll to firmly grip the roll and hold ition the chucks and concentric with the shaft it. These conical chucks may be. of the type shown in the SiegPatent 1,605,568. The motor .26 is again energized to lower'the arm l3 into engagement with the shaft |4,.and the

parts

40 and 4| of the two-part. bearing sleeve are clamped to.- gether. The dog'35 is then released and the mo tor started to lift theshaft l4 and the roll A to.

the desired sheet delivery elevation and free: of the truckor dolly 13..

To accurately line up the sheet with the-ma chine to which the sheetis to be delivered, means is providedfor adjusting the roll axially. from the position it occupies whensecured to the shaft. This may be accomplished by moving the entire frame l0, the-shaft I4 and the roll slightly toward or from the frame H, the shaft sliding inv the bearing sleeve on. the arm l3. That may be effected by mounting the frame It] onabase-53 and sliding the frame along the base by an adjusting screw 54.

If the roll be more'loosely wound at one end than the other, one of the'frames ID or H maybe adjusted slightly towardor from the machine to which the sheet is being delivered, to put both. edges of the sheet under the same tension. As.

shown, the frame I is mounted on a base '55, and an adjusting screw 56 mounted on thebase may be operated'to pull or push this frame in a direction at right angles to the direction in which the frame In. is adjustable.

In Fig. v2 1 have shown theframes' 1- and -'l|= provided with two of the roll lifting and rotatable" supporting means; one on-each side, sothat while r it a sheet from one roll is being delivered from one shaft I4, another roll may be brought into-position and be ready to deliver a sheet without interruption of operations; or sheets may be delivered simultaneously from both rolls and in complete or partial overlapping relationship, as disclosed in the Sieg prior application Serial No, 753,689.

Fig. 4 illustrates a diiferent and simpler embodiment of my invention. In this form the shaft support 12 is vertically slidable on a frame It) and is raised and lowered by a motor 26 and a screw I9. The other shaft support I3 is pivoted at 60 on a frame I l' to swing in a plane including the axis of the shaft 14, instead of in a plane at right angles to it, and is provided with a two-part shaft bearing 40, 4| and clamping screw 42, the same as shown in Fig. 2. The swinging may be effected by a motor 62 connected by suitable gearing 63 to the roll supporting arm [3. The pivotal support of this arm may be raised and lowered simultaneously with the other shaft support l2 by motor 26" operating a screw 23" connected to a vertical shaft support II on which the arm I3 is pivoted. The motors 26' and 26" may be connected in the same circuit so that they will operate in synchronism, and so that the shaft [4 will remain horizontal while being raised or lowered. Instead of having the supporting frame for the arm 13 mounted on the floor, as in Figs.

1 and 2, it is shown as mounted on an overhead beam 65 in respect to which the support I I is vertically adjustable.

By having two trains of gears, either of which may be brought into operation, a single motor or other source of power may be employed for imparting to the arm l3 both swinging and vertical adjusting movements. Various other changes in the construction and design may be employed for carrying out my invention. The frames carrying the shaft supports l2 and I3 may be provided with the same type of adjusting screw as shown at 54 and 56 in Figs. 1 and 2.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

A mill roll stand including a spindle adapted to extend through and rotatably support a roll of sheet material, a pair of arms pivotally mounted to swing in spaced parallel planes, each arm having a bearing at its outer end for receiving and supporting an end of said spindle, a shaft extending parallel to said spindle, gearings connecting said shaft to said arms for swinging said arms to lift said spindle upon rotating said shaft, and a clutch connecting one of said gearings to said shaft, whereby upon releasing said clutch,

'. opening the bearing for one arm and rotating said shaft, one arm may be swung up away from said spindle, and a roll may be moved onto the spindle supported by the other arm.

EDWARD B. SEEGER.

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

UNITED STATES PATENTS Number Name Date 1,747,289 Cornell et a1. 4.. Feb. 18, 1930 1,930,074 Bentley Oct. 10, 1933 2,139,873 Yoder Dec. 13, 1938 FOREIGN PATENTS Number Country Date 126,438 Switzerland June 16, 1928