US1398843A

US1398843A - Guide-box for rolling-mills

Info

Publication number: US1398843A
Application number: US334545A
Authority: US
Inventors: Cullen Andrew
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-10-30
Filing date: 1919-10-30
Publication date: 1921-11-29
Anticipated expiration: 1938-11-29

Description

A. CULLENQ GUIDE BOX FOR ROLLING MILLS.

APPLICATION FILED OCT. 30, 1919.

1,398,843., Patented Nov. 29, 1921...

3 SHEETS-SHEET L i im! VWA W32;

A'I'TORNEY A. CULLENK GUlDE BOX FOR ROLLING MILLS.

APPLICATION FILED OCT. 30. 1919.

Patented Now 29, 1921.

I} SHEETS-SHEET 2.

WITNESSES A'I'I'OR N EY A. CULLEN.

GUIDE BOX FOR ROLLING MILLS. APPLICATION FILED OCT. 30. 1919.

1,398,843., Patented Nov. 29, 1921.

3 SHEETS-SHEET 3.

T- INVENTOR i I WITNESSES A7?! 622E670,

' sillon, in the county FHQE.

ANDREW CULLEN, or MASSILLON, omo.

GUIDE-BOX FOR ROLLING-MILLS;

Specification of Letters Patent.

Patented Nov. 29, 1921.

Application filed October 30, 1919. Serial No. 334,545.

To all whom it may concern:

Be it known that I, ANDREW CULLEN, a citizen of the United States, residing at Masof Stark and State of Ohio, have invented a new and useful Guide- Box for Rolling-Mills, of'which the following is a specification.

This invention has reference to boxes for rolling mills, rovide a guide box, for use in' producing ars from ingots, which shall be free from certain objectionable features found in other guide boxes. I

In rolling mills, especially those for producing bars of round cross-section, the last guide passing of the bar between the rolls requires the use of a guide of elliptical cross-section, while the pass in the rolls is of round crosssection, and the guide is so positioned that during the final reduction in the bar, the latter is held in a manner to avoid distortion or undue strain.

The invention includes a guide box usually located in front of the last pass of the rolls, although, of course, it may be utilized at other points and for other purposes. Within the box are guide holders and guides, each being two-part structures associated for coaction. The guide holders are held in suit able position by set screws, to permit adjustment and change, and one of them is so arranged as to be held in position after adjustment, while theother is also adjustable toward and from the first guide holder at will. Each guide holder is arranged to receive an appropriate one of the guides, which latter are suitably shaped blocks each constituting one half of the completed guide. One of the guide holders is so arranged that it may be easily moved laterally from or toward the other guide holder, to permit initial centering and subsequent firm holding of the guide while the rolling is proceeding. Provision is made for the quick movement of the guide holder with the guide fast therein to open the guide sufficiently for the introduction of the bar, and to subsequently close the guide to closely embrace the bar, while the latter is being pulled by the rolls through the pass to cause the final shaping of the bar into cylindrical form.

and its object is to,

Provision is made for the attachment of the invention to existing rolling mills without necessitating structural changes, so that the advantageous features of the invention may be utilized without such expense as would be necessary to install new parts as replacements of existing parts in installed rolling mills.

The invention will be best understood from a consideration of the following detailed description, taken in connection with the accompanying drawings forming part of this specification, with the understanding,

however, that the invention is not confined to any strict conformity with the showing of the drawings, but may be changed and modified, so long as such changes and modifications mark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings.

Figure 1 is a side elevation of a rolling mill equipped with the invention.

Fig. 2 is a front elevation thereof.

Fig. 3 is a horizontal section in corresponding to the meeting faces rolls.

Fig. 4 is a section on the line 44, Fig. 2, but drawn on a larger scale.

Fig. 5 is a view similar to Fig. 4, but taken in a front-to-rear plane between the guides.

Fig. 6 is a a plane of the section on the line 66 of Fig. 4. r

Fig. 7 is a section on the line 77 of Fig. 6.

Fig. 8 is a perspective view of a portion of one of the'guides.

Referring to the drawings, there is shown a rolling mill stand A, in which are mounted

suitable rolls

1 and 2, provided with passes 3, such parts requiring no particular description, since they may be such as are common to rolling mills and especially those adapted for the production of round rods or bars.

The invention is concerned particularly with a guide box, and parts connected therewith, for use especially with the last pass 3 where the bar is reduced to a round cross-section or cylindrical form.

The guide box comprises a hollow frame 4 of considerable front-to-rear extent, and includes a top member 5,

side members

6 and 7, respectively, and a bottom member 8. The

side members

6 and 7, each has a projecting portion 9 terminating in a nose 10 so that the projecting portion 9 relation to the rolls, whereby the bar, being rolled, may be supported very close to the rolls when gripping said bar to draw it through the pass, to which the bar is presented. The bottom member 8 is extended from the

side members

6 and 7 away from the nose portions 10 of the side members, and the under surface of the bottom member 8 is provided with a rib 11 seated in a groove 12 formed in the upper surface of a supporting or rest bar 13 carried by and extending between uprights or columns 14 forming part of the roll-carrying stand. The bar 13 is designed to sustain the guide box in position along the rolls, tending through a longitudinal slot 16 in the supporting bar 13 are tapped into the rib 11 and bottom plate 8 to hold the guide box firmly in desired positions.

The top 5 is formed with a slot '17 extending crosswise of the guide box, which slot has an intermediate expansion 18 and atom.

tinuation 19 opening into the interior of the guide box. The purpose of the slot 17, with its expansion 18 and continuation 19, is to pass set

screws

20, 21, 22, one of the set screws carrying a nut 23 lodged in and movable along the expanded portion 18 of the slot 17.

Within the guide box are located two substantially channel-shaped members 24, 25, together constituting a guide holder, with the two members'movable toward and from each other, and each comprising a side plate 26 and

end plates

27, 28 with the-inner faces of the end plates beveled as indicated at 29. The guide holder member 25 is clamped in the guide 4 by means of the set screw 20, and

- its position with relation to the side 6 of the guide box is determined by back set screws 30 carried by the side wall 6 of the guide box.

The guide holder member 24 is provided with an internal screw-threaded neck 31, and the side member 7 has a passage 32'there through for the neck.

Within the guide holder there is located a guide formed of two like blocks 33, each with an interior groove 34. The set screws 21 and 22 extend through the end walls 27 of the respective guide holder members 24 and 25, and engage and lock the guide blocks in the respective holder members, but the guides are adjustable toward and from each other, except that the guide holder 25 may be locked against movement in the guide box 4 by the set screw 20.

may enter into close and clamp screws 15 exalready referred to,

which blocks each have beveled or wedge shaped lugs 36 to engage the beveled faces 29 of the

plates

27, 28. Each guide block 33 is formed at one end with a lug 37 to limit the movement .into the guide holder having a threadedtoward the throat of the rolls, while that end of each guide block toward the throat of the rolls is prolonged and narrowed. similarly to the

side plates

6 and 7 of the guide box. In order to permit up and down adjustment of the guide blocks, enough play is' provided between these blocks and the

end portions

27, 28 of the guide holder members to admit shims or liners 38, so that by the introduction of shims, or the removal of shims and the proper adjustment of the set screws 21 and 22, the longitudinal center line of the guide blocks may be raised and lowered so as to properly conform with or match.

the longitudinal center line of'that pass in the rolls opposite which the guide box is located. These shims adjust the guides for wear.

, In order to provide for a rapid opening and ClOSlIlg of the guides, various devices may be used as, for instance,"right and left hand screws or multiple-thread screws of long pitch, or other suitable means. In the drawings, such adjustment is accomplished by the screw 34 having the threaded end 35 while the other end has a screw threaded extension 39 of opposite pitch to the threaded end 35. Fast to the neighboring column 14 of the stand A is a plate 40 held in place by bolts or screws 41 and passes the end 39 of the screw 34*, which, at its outer terminal portion, is squared as shown at 42, or otherwise suitably shaped to receive the hub end 43 of a crank or handle 44, whereby the screw may be turned about its longitudinal axis at will. The plate 40 is provided with lugs or projections 45, to which is bolted a strap 46 having a series of perforations 47 therein in any one of which may be lodged a stop pin 48 extending into the path of the handle 44 to limit the movement of the handle and thus regulate the stroke thereof.

The end 39. of the screw carries a nut 49 seated in a recess in a. lockin box 50 having a passage 51 through which t e screw rod 34 extends. The box 50 is held to the plate 40 by means of bolts 52 or in any other appropriate manner, from turning with the screw rod 345* locking box 50.

Before the bar being rolled is entered into the pass of the rolls where it is completed, the handle 44 is moved in the proper direction, which may be assumed to be upwardly away from the stop 48 to thereby cause the end 35 of the screw rod 34 to screw into the socket 3land screw outwardly through the nut 49. The result of this is that the guide block holder24 and the guide block-therein are moved positively away from the other guide block holder 25 and guide block therein, thelatter holder being at the time clamped fast to the guide box by the set screw 20. The extent of separation of the guide blocks is determined by other "back set screws 53 carried by the side plate 7 of the guide box.

Guide mountings, as heretofore provided, have been more or less complicated in construction and awkward in operation and have required the stopping of the machine and caused considerable delay when adjustments have been needed.

In accordance with the invention, adj ustments may be accomplished while the machine is in operation and without causing any delay. It is of importance that the guides may be opened and closed in a positive manner, instead of the customary arrangement where the guides are permanently placed in the box making it diflicult to get a bar that is a little over size through the guides, or where the bar being rolled is while the nut 49 is prevented by the utilized to push the guide away, such a pro cedure often causing a great deal of delay in getting the bar into the rolls.

Withthe invention, the guides are positively spread to an extent permitting the movement of the bar by the operator into a pass to be properlygripped by the rolls, whereupon the guides are brought into hold: ing relation to the bar Without material ex.- ertion, which latter oftentimes mars the bar permanently.

- It may sometimesJoe desirable to operate the guide blocks/ without the rap-idopening and closing means, and in such event, the rod 345* may be readily unscrewed from the 4 socket 31, whereupon the guide blocks may be operated in the ordinary manner.

What is claimed is 1.. A guide box structure for rolling'mills comprising a frame, a pair of guide holders each substantially channel shaped and lo-- cated within the frame, individual guide blocks adjustable within each guide holder, set screws passing through the guide holders and holding the guide blocks in the holders, and other set screws for retaining one of the guide holders in fixed position.

2. A guide box structure for rolling mills comprisinga frame, a pair of guide holders within the frame, individual guide blocks within each guide holder, means provided on the guide holders for holding the guide blocks therein, means for adjusting one of the guide holders into positions spaced from one side of the frame, and means for retaining the same guide holder in adjusted positions.

3. A guide box structure for rolling mills, comprising a hollow frame, a pair of guide holders within the frame and each consisting of a channel shaped part with the inner faces of the end members beveled, individual guide blocks within each guide holder, shims or liners nterposed between the beveled inner faces of the lower end members of the guide holders and the lower faces of the guide blocks, and means provided on the end members of the guide holders opposite the shims or liners and engaging the guide blocks to hold the same in place.

4. A guide box structure for rolling mills comprising a hollow frame, a pair of guide holders located within the frame and each consisting of side plates and top and bottom end plates, the inner faces of the end plates being beveled, individual guide blocks within each guide holder, each block having wedge shaped lugs to engage the beveled inner faces of the said end plates, and means for holding the blocks within said holders.

5. A guide box structure for rolling mills comprising a hollow frame, a pair of guide holders located within the frame and each consisting of side plates and top and bottom end plates, the inner faces of the end plates being beveled, individual guide blocks within each guide holder, shims or liners interposed between the inner faces of the bottom end plates and the lower faces of the guide blocks, each block having wedge-shaped lugs engaging said shimspand means for securing the blocks within said holders.

6. A guide box for rolling mills, comprising a frame adapted to be positioned in front of the rolls, fixed and movable guides carried by the frame, a manipulating handle, a right and left hand screw carried by the handle and connected with the movable guide to positively move the same toward and from the fixed guide, and means for limiting the movement of the handle.

7. A guide box for rolling mills, comprising a frame adapted to be positioned in front of the rolls, fixed and movable guides carried by the frame, a manipulating handle, means carried by the handle and connected with the movable guide to positively move said guide 8. A guide box for rolling mills comprising a frame adapted to be positioned in front of the rolls, fixed and movable guides carried by the frame, a manipulating handle, a right and left hand screw carried by the handle and connected with the movable guide ,to positively move the same toward and from the fixed guide, a plate over which the handle is moved, said plate being provided with a series of holes, and a stop pin inserted in one of said holes to limit the stroke of the handle.

9. A guide box structure for rolling mills comprising a frame adapted to be fixed to the rolling mill opposite a chosen one of the passes of the rolls, a divided holder in the frame, a divided guide mounted in the holder, means for securing the guide holder in the frame, means for securing the guide in the guide holder, and positively acting means for spreading and contracting the guide to admit and embrace the work.

10. A guide box for rolling mills comprising a frame adapted to be positioned in front of a pass of the rolls of the mills, a two-part guide holder with means for securin one part of the holder in the frame with the other part of the holder movable in the frame toward and from the first named part of the holder, a two-part guide for the work, means for securing each part of the guide in a respective part of the guide holder, and means under the control of an operator for positively moving one part of the guide holder, with the part of the guide fast therein, from and toward the other part of the guide, to provide free passage through the guide of the work and the subsequent embracing of the work.

11. A guide box structure for rolling mills comprising a frame adapted to be fixed to the rolling mill opposite a chosen one of the passes of the rolls, a divided holder in the frame, a set screw carried by the frame for locking one of the holders, other set screws carried by the holders, guide blocks together forming a divided guide held individually by the set screws of the holders, and positively acting means for moving one of the guide holders and the guide block therein in both directions relative to the other holder and guide.

12. A guide box structure for rollin mills comprising a frame adapted to be fixed to the rollin mill opposite a chosen one'of the passes of the rolls, a divided holder in the frame, back set screws for. the divided holder members carried by the frame, a set screw carried by the frame for locking one of the holders, set screws carried by the.

holders, guide blocks together forming a divided guide held individually by the set screws in. the holders, and positively acting means for moving one of the guide holders and the guide block therein in both direc-' mounted in the frame, a divided guide 7 mountedin the corresponding parts of the holder, means interposed between the guide portions and the respective holder portions for taking up wear in the guide, each of said guide holders having llmited movement within the frame, meansfor clamping one of the holders within the frame so that it becomes a fixed holder, means for effecting adjustment of the position of this relatively fixed holder prior to the clamping thereof, means for securing the individual parts of eachguide to the corresponding holder portion whereby each guide portion and holder ortion are fixed relatively, means for effectlng a relatively slow adjustment of the position'of the movable guide holder portion toward the fixed guide holder portion, and means for effecting a rapid movement of the movable holder portion either toward or away from the fixed holderportion.

14. A guide box structure for rolling mills comprising a frame adapted to be fixed to the rolling mill opposite a chosen one of the passes of the rolls, a guide and holder therefor mounted in the frame, said guide and holder being divided to permit the guide members to be spread apart or approach, means for causing the positive movement of the guide members toward and from each other, comprising a right and left screw with one end in engagement with one member of the guide holder, a nut for the other end of the screw, means for holding the nut to the frame of the rolling mill, and a handle for the screw, whereby the latter may be rocked to positively separate or approach the members of the guide.

15. A guide box structure for rolling mills comprising a frame,adapted to be fixed to the rolling mill opposite a chosen one of the passes of the rolls, a divided guide and divided holder therefor mounted in the frame, means for fixing one holder in the frame, a right and left hand screw connected at one end-to the other holder, a nut connected to the frame of the mill and traversed by one end of the screw, a manipulating handle for the screw, a stop pin in the path of the handle, and a carrier therefor with a plurality of receptacles for the stop pin to permit movements of the handle and corresponding movements of the screw and guide member connected thereto in accordance with the position of the stop.

16. A guide box structure for rolling mills comprising a hollow frame, a pair of guide holders each consisting of a substantiallyv hollow frame, individual guide blocks with- Within the frame toward or from the fixed 10 in each guide holder, means provided on the guide holder.

guide holders for holding the guide blocks In testimony that I claim the foregoing as therein, means for adjusting one of the my own, I have hereto aifixed my signature guide holders in positions spaced from one in the presence of two Witnesses.

side of the frame, means for retaining the ANDREW CULLEN same guide holder in adjusted positions, and Witnesses: means connected with the other guide W. R. STUETZ,

holder for rapid adjustment of its position WILLIAM S. ORR.