US1089502A - Method of constructing a transferring device for rod or wire rolling mills. - Google Patents

Description

A. SOHO'PP & H. MOSANER. METHOD OF CONSTRUOTING A TRANSPERRING DEVICE FOR ROD 0R WIRE ROLLING MILLS.

APPLICATION FILED MAY 8, 1907.

1,089,502, Patented Mar. 10,1914.

3 SHEETS-SHEET l.

Patented Mar. 10, 1914 3 SHEETS-SHEET 2.

A. soHb'PF & H. MOSANER. METHOD OF OONSTRUGTING A TRANSFERRING DEVICE FOR ROD 0R WIRE ROLLING MILLS.

APPLICATION FILED MAY 8, 1907'.

A. SOHUPF & H. MOSANER.

METHOD OF GONSTRUGTING A TRANSPERRING DEVICE FOR ROD 0R WIRE ROLLING MILLS.

APPLICATION FILED MAY 8, 1907.

1,089,502. Patented Mar.10,1914.

' Fy/fi,

3 SHEETS-SHEET 3.

NTED STATES PATEN T OFFICE.

ANTON SCI-IGFF, OF ST. JOHANN-ON-THE-SAAR, AND HERMANN MOSANER, OF NEUNKIRCHEN, NEAR [DRIER], GERMANY.

METHOD OF CONSTRUCTING A TBANSFERRING DEVICE FOR ROD OR WIRE ROLLING- MILLS.

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Specification of Letters Patent.

Patented Mar. 1&1914.

Application filed May 8, 1907. Serial No. 372,616.

To all whom it may concern Be it known that we, ANTON Sorrow, graduated engineer, and a subject of the King of Bavaria, and a resident of 48 Bismarckstrasse, in the city of St. J ohann-ontheSaar, Kingdom of Prussia, and German Empire, and HERMANN MosANnn, a civil en gineer, a subject of the Emperor of Austria and King of Hungary, and a resident of 2 Mozartstrasse, in the city of Neunkirchen, near Trier, Kingdom of Prussia, and German Empire, have jointly invented a certain new and useful Method of Constructing a Transferring Device for Rod or Wire Rolling Mills, of which the following is a specification.

The present invention relates to an improved method of constructing transferring devices by which rods or wires can be automatically guided from the pass of one set of rolls of a rolling mill to another, and has for its object in particular to provide a method by which to construct such a device as will be adapted to properly guide bars or rods of oval cross section. As will be understood it is necessary to turn the bars or rods through an angle of 90 while moving from one set of rolls to another, in order that the horizontal diameter of such rod when passing between the first set of rolls will be the vertical diameter when the rod is passing between the second set.

Various forms of guiding devices generally resembling that forming the subject matter of the present invention have been heretofore employed and have been found satisfactory when employed with rods or bars of square cross section, but such previous guides have not been adapted to the proper handling of rods or bars of oval cross section.

In the accompanying drawings,-Figures 1 and 2 are diagrammatic and conventional illustrations in elevation and plan of a guide of the character referred to constructed in accordance with the present invention; Figs. 3, 4t and 5 are sectional views on the lines AA, BB and CC of Fig. 2, respectively; Fig. 6 is a side elevation of the outlet or receiving end of the guide; Fig. 7 is an elevation of a rolling mill having a guide constructed in accordance with the present invention supported thereby, said guide being shown in section, the portion at the right of the support 8 being on the line A A, Fig. 9, and the portion at the left of said support being in section on the line B-B, Fig. 9; Fig. 8 is a side elevation of the parts shown in Fig. 7 Fig. 9 is a plan and partial sectional view of the guide or transferring device without its support; Fig. 10 is an elevation of a rolling mill having four transferring devices or guides adjacent its rolls, said guides being shown in section and as adapted to guide rods or bars of different cross sectional form Fig. 11 is a plan of one of the guides shown in Fig. 10; Fig. 12 is a diagrammatic view of a transferring device constructed in accordance with the present invention when the guide extends from one two-roll mill to another similar mill.

Referring particularly to Figs. 1 to G, a designates the rod or bar issuing from a discharge box It arranged to receive such bar from the pass of one mill or pair of rollers, and b the rod or bar as it enters the pass of the next pair of rollers or mill to whose action it is subjected, and it will be noticed that in order to properly introduce said. rod into the second mill or between the second pair of rolls it must be turned through an angle of 90. The angle of torsion, or extent of turning of the bar or rod in its pas page through the discharge box it is represented by Z in Fig. 1. The guiding or transferring device by which the bar or rod is conducted from one set of rolls to the other is of the curved form shown in plan in Fig. 2, and owing to the different elevations of the roll passes it also has a vertical curve as represented by the arrow is. This guide or transferring device comprises a receiving box or throat 7L which is preferably made in the cross sectional form illustrated in Figs. 3 and a so as to impart the required turning movement to the bar or rod passing therethrough, an open or trough-like member r, and a delivery member 6.

Generally considered, the transferring device or guide connecting or extending from one roller pass to another herein shown and above referred to is similar to devices heretofore proposed for the same purpose. However, none of the earlier devices have been found satisfactory for use with mills for rolling bars or rods of oval cross section or of a cross section having diameters of different lengths. The exact curvature, both horizontal and vertical, required for such a guide is obtained by the present invention as follows: An elastic strip or band of steel (for example such as would form a ribbon saw blade) is grasped and firmly supported at one end in the position it would occupy when issuing from the pass of the first pair of rolls, and said band is then bent so as to bring its opposite end into proper position for entering the pass of the second pair of rolls. By this means the exact curvature necessary to properly automatically guide a bar or rod from one set of rolls to the other is obtained, and the guide r of the present invention is constructed in accordance with this rule or plan.

The peripheral velocity of the rolls of both mills illustrated is the same but as the pass of the first, or one adjacent the end a, is of larger cross section than the other a greater quantity of material can pass through the former than can be received by the latter in the same length of time.

As the bar or rod passes through the box or throat h it will be turned and caused to enter the groove trough-like member r of the guide, the walls 0, (Z, of which are separated to a greater extent at the inlet end than they are adjacent the discharge end. As the bar is fed from the first set of rolls it will be forced through the guide 1 and into the inlet box 6 for the second set of rolls, the form of the guide between the discharge box it of the one pass and the inlet box 6 of the second being such that the front end of the rod will be accurately directed and uniformly supported throughout its passage from one box to the other even though the rolls are turning at a high speed. As the cross sectional area of the two passes is not uniform the rolls of the first pass operate to feed the rod more rapidly than it can travel through the second pass and therefore after the forward end has been engaged by the second set of rolls a section of such rod will be caused to spring forward from the trough-like guide and assume the form of a bow, substantially as indicated in dotted lines in Fig. 2. The form of the guide is such that this bow-like section is relatively near the discharge box 72 and a portion of the outer wall of the guide may be removed, as indicated at z, to assist such movement of the rod.

As above noted the transferring devices heretofore proposed, although generally similar to that herein described have been found unsatisfactory in practice, and it is believed that this is largely due to the fact that the curvature of such guides has not been properly designed. If the speed of the mill is sufiicient to impart such an amount of centrifugal force to the bar or rod being rolled as to maintain it in contact with the walls 0, the inner wall (Z of the curved guide may be dispensed with.

The preferred manner of supporting the curved guide or transferring device is illustrated particularly in Figs. 7 and 8, refer ring to which it will be seen that the guide or transferring device r is suitably attached to a post or standard 8 which is mounted on transverse bars w, w, secured to the side frames of the mill. As shown in Fig. 8, the lower end of the post 8 is bifurcated or grooved and fitted over the supporting bar as, and the upper end of said post is engaged by a bolt or pin 8 extending through a slot in the bar w, a wed e or key 5 being passed through a slot in said bolt or pin and acting to hold the post against the cross bar to. By such an arrangement the post and transferring device or guide attached thereto may be adjusted longitudinally of the rolls and accurately positioned with relation to the passes of the mill.

While the two sets of rolls with which a guide or transferring device constructed in accordance with the present invention cooperates may be mounted in the same frame, and as shown in Figs. 7 to 10, the entire mill may comprise but three rolls, it will be evident that as shown in Fig. 12 the two sets of rolls may be mounted in independent frames, the transferring device being suitably arranged as indicated in said figure.

As shown in Fig. 10 the guide and supporting post or standard may vary in form according to the particular style of bar or rod to be rolled, and the extent of turning movement which it is necessary to impart thereto in passing from one set of rolls to the other.

In Figs. 7 and 10 a portion of the side wall of the guide is broken away and the height to which the wall of the guide rises beyond the point at which the section is taken is represented by dotted lines.

As hereinbefore indicated we are aware that prior to our present invention it has been proposed to provide a rolling mill with a guide or guides for assisting in properly directing a rod in its passage from one set of rolls to the succeeding set. Such guides however have not been constructed in accordance with the method herein described and therefore have been found to present certain defects which are avoided by our invention. For example, with the guides heretofore proposed the front or forward end of a rod issuing from one pass has not been continuously and properly guided and supported until engaged by the rolls of the second pass. By constructing the guide as herein described the front end of the rod is accurately guided into position to be engaged by the rolls of the second pass, and only after such engagement has occurred does any portion of the rod spring from the guide. This avoids the necessity for manually handling the hot rod, and by constructing the guide in accordance with our improved method a rolling mill for treating rods of oval cross section may be operated at maximum speed with the assurance that each rod will be accurately and properly guided from one pass in the mill to the neXt, being automatically turned or deflected as is necessary.

Having thus described the invention what is claimed is:

The herein described method of constructing a transferring device adapted to automatically direct a bar or rod from the discharge box communicating with a pass formed by two rolls of a rolling mill to the inlet box communicating with another similar pass, the longest diameter of the cross section of each of said passes being in a plane extending substantially at right angles to the plane including the correspond ing diameter of the other pass, consisting in bending an elastic metal band horizontally and vertically to form a continuous curve from one of said boxes to the other with its ends in alinement with the passages in both said boxes, and then building a guide conforming to the curvature of said elastic 30 strip.

In Witness whereof, we have hereunto signed our names in the presence of tWo sub scribing witnesses.

ANT. SGHOPF. v HERMANN MOSANEB.

Vitnesses Gnone Pn'ren ILLIAN, VVALTER HAUsING.

tower at thit patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. 0."

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