US2924132A - Cooling bed stop - Google Patents

Description

Feb. 9; 1960 M. MORGAN ET AL;

' COOLING BED STOP Filed Dec. 19, 1955 2 Sheets-Sheet 1 INVENTORS Myles Morgan.

BY ETnest Comiois H 07 ey Feb. 1960 M. MORGAN ETAL 2,924,132

COOLING BED STOP Fil'ed Dec. 19, 1955 2 Sheets-Sheet 2 INVENTORS myles Morgan BY fi'r nest K. Comtois J 11 H or United States Patent COOLING BED STOP Myles Morgan and Ernest R. Comtois, Worcester, Mass., assignors to Morgan Construction Company, Worcester, Mass, a corporation of Massachusetts Application December 19, 1955., Serial No. 554,078 1 Claim. (CI. 80-42) the principal purpose of permitting the rolled material to cool to the point where it may be handled without fear of deformation. In addition, the cooling bed .provides a storage facility and at the same time provides for the lateral movement of the product to bring it into alignment with machinery which may not be on the center line of the rolling mill. A product of the rolling mill, which may be rod, bar or the like is transferred to the cooling bed in very long lengths. It is necessary, then, that the product be cut into shorter lengths, for storage and sale. A popular length into which the bar may be cut is that length which will permit it to be inserted in a railway gondola car. Because of the speed at which lengths of bar are being presented to, the cooling bed and the time required to cut the bar into the short lengths, it is usual practice to present the bar to the shear in groups of a dozen or more and, for this purpose, it is necessary that all the bar lengths be coextensive with one another. In the past, it has been the practice to place a large, number of barson the approach table which precedes the shear, and, because the bar has, been placed on the cooling bed in a more orless hit 'or miss fashion, the lengths of bar will not be coextensive with one another. In the past it has been the practice to place a stop between the ends of the bar and the shear and to drive the shear approach table until all the forward ends of the bar strike the stop. Not only is this time consuming, but it is necessary for the driven rolls which make up the working elements of the approach table to r It is, therefore, an outstanding object of the present invention to provide a cooling bed wherein the lengths of rolled products are aligned and made coextensive during their passage thereover.

Another object of the present invention is the provision of means for rendering long lengths of material coextensive.

It is a still further object of this invention to provide cooling bed apparatus in which rolled products passing thereover may be adjusted lengthwise by a desired amount.

Another object of the invention is to provide cooling bed apparatus for the lengthwise adjustment of rolled product which apparatus is rugged and dependable and which requires a minimum of maintenance.

With these and other objects in view as will be apparem to those skilled in the art, the invention resides in the combination of parts set forth in this specification and.

covered by the claim appended hereto.

The character of the invention, however, may be best understood by reference to certain of its structural forms as illustrated by the accompanying drawings in which;

Figure 1 is a sectional view of apparatus embodying the principles of the present invention taken transversally of the center line of the rolling mill,

Figure 2 is a plan view, somewhat enlarged, of a .portion of the apparatus shown in Figure 1 v Figure 3 is a plan view somewhat enlarged of another portion of the apparatus shown in Figure l, and

Figure 4 is a transverse elevational view of the apparatus shown in Figure 3.

Referring first to Figure 1, wherein is best shown the general features of the invention, a cooling bed, indicated generally by the reference numeral 10, is shown in use in conjunction with a rolling mill runon table 11, and a cold runoff table 12. The rolling mill runon table 11 consists of driven rollers 13, which are aligned with the center line of the rolling mill and are driven by motors 14. A rotary kickoff mechanism 15 is mounted above the rollers 13, and provides for moving the rolled products laterally from the rollers 13. The rolling mill runon table 11 is suitably mounted on supports 16 which are fastened to a suitable foundation 17. The cold ru'noif table consists of a series of driven rollers 18 and fiat plates 19, extending between the rollers, the rollers having their uppermost surfaces extending slightly above the plates 19. The rollers are driven through gearing 20, lying within a housing 31 which forms part of the runoff table. The runoif table is also mounted on the founda tion 17 of the mill. Extending laterally from the runon table 11 are a series of stationary racks 21; interspersed among the stationary racks are a number of carryover racks 22. These'sets of racks'are provided with notched upper edges in the usual manner. Each of thecarryover racks is mounted on vertical connecting rods 23 and 24 which are mounted for eccentric movement on crank shafts 25 and 26. These shafts are driven by a main drive 27 through gearing, not shown, lying withina gear box 28. A turnbuckle connecting means 29 provides for structural rigidity between the two connecting rods. At the end which lies away from the runon table 11, each of the stationary racks 21 is provided with an aligning roller 30 which will be described more clearly hereinafter. Extending between the racks 21 and 22 and the cold runoff table 12.are a series of shufiie bars 32, some of which are fixed and others of which are movable. Adjacent to the end which is away from the runoff-table 12 each of the movable shuifie bars 32 is connected byxa connecting rod 33 to an eccentric'34. The shuffie bars 32 extend into the runoff table and portions of the plates 19 are cut awayto permit vertical movement of these bars. At "the end which underlies the runofi table, the movable shuffle bars are contacted by a crank arm 35, which is keyed to a rotatable drive shaft 36. The other end of the crank arm-is provided with a roller 37 which contacts the under side of the shuilie bar on occasion.

Referring now to Figure 2, wherein is best shown the details of the aligning roll 30, the roll is shown as having conical surfaces, such that a section through the roll gives a notched configuration which would be a continuation of the notched upper surface of the stationary rack 21. The aligning roll is provided at the end which faces the runon table 11 with a shaft 40 mounted in a bearing 41. At the other end, a shaft 42, extends through a bearing 43 and is provided at its outer end with a pulley 44. The pulley 44 is connected by belts 45 and an output pulley 46 to a reduction unit 47 driven by a motor 48. Generally speaking, each of the stationary racks 21 which contains an V 3 t aligning roll 30,is provided with two vertical notched walls 50 and 51 which are joined by a horizontal web 52 in the area which contains the aligning roll 30. The stationary rack 21 is provided with a yoke configuration 53 which is best shown in Figure 1. a

As is evident inFigures; 3 and 4, certain of thestationary racks are formedsornewhat differently fromthose described heretofore. A number of the stationary racks, indicated by the reference numeral 21a, are not provided with'an aligning roller 30; But the general arrangement ofdouble-vertical walls joined by a horizontal web is maintained. In addition, the-vertical walls are joined by a wall extending between them at the ends adjacent the cold runoff table 12. t On this type'o f'stationary rack maybe mounted a stop member 55 which comprises a main body portion 56 adapted to be arranged transversely of the roll mill pass so thatit lies between the two vertical walls of-the stationary rack 21a. At one end, the main wall 56 is formed with a downwardly depending leg 57, adapted'to rest on a horizontalweb of the sta-' tionary rack. At the same endand extending sideways therefrom are abutment plates, '58 and 59,which extend between the vertical transverse walls of the shutfie'bar and prevent sidewise movement of the stop member 55. At-the other end of the mainplate, 56, is a weldedplate 60, which extends sidewise therefrom and which has welded thereto a downwardly depending finger element 61. The finger element 61, is adapted to hook over a longitudinal vertical 'web, which extends between the transverse vertical webs of the stationary rack. A handle 62 extends upwardly of the stop member centrally thereof; I The operation of the invention will now be clearly understood inview of the, above description. Lengths of bar emanating from the rolling mill arrive on the runon table 11 on the upper surface of the rollers 13 which are rotated at a high rate of speed by the motors 14.""Presumably, a flying shear will be located between the'rolling mill and the runon table l1 to'sever the bars into convenient long lengths. As each length arrives be; sidethecooling bed, the rotary kickoff mechanism 15 rotates causing the length of bar to be projected laterally into first notch of the stationary racks. .Eventually, the carryover racks 22 under. the control of the drive shaft '27'and the crankshafts 25 and 26 move upwardly'in a circular path, engage the bar in the first notch and carry it over to the second notch of the stationary rack. In' this way, each baris. moved from'one notch to another across the cooling bed. .Eventually,' it is deposited in the first notch of the aligningroll 30. These rollsare driven by the motor 48 through the gear reductionunit 47, the belt45, the pulley 44, and the shaft 42." A. rotation of the aligning roll causes the bar to be projected lengthwise of the cooling bed, i.e., parallel tothe center line of the rolling mill. Eventually, the rod strikes the stop member 55, which has been placed on a suitable fixed shuffle bar 21a. After striking the stop member 55, the bar can now go no further and remains in' the first notch of the aligning roll 30 until it is lifted by the movable shuflie bars 22 into the next notch of-the align.- ing roll 30. From there, .the carryover racks' 22 carry the bar onto the secondary shume bars 32. Since these a es shufile bars have no notches andthe'throw of the ec-. centric 34 isselected to be very small, the bars proceed very slowly across the shufiie bars 32. In this way they accumulate ina side-by-side relationship. During this period the crank arm 35 is in a lower posltion so that the shufile bars lie below the surface of therunoif table rolls 18. Since the shufile barsare below the level of the rollers 18,1 and the plates 19, even in the uppermost position of throw of the eccentric 34, none of the bars are transferredoverto the roll 18, and thebars accumulate adjacent thereto. Eventually, the shaft 36 is rotated so that the crank arm 35 moves intofavertical position.

andtheroller'32 pressing against the shuflleibars lifts them into'an uppermost position 'where' their-upper edge is higher than that of the rolls 18. In this condition, the

shufiiingof the bars causes the "bars to' proceed to positions overlying the rolls 18 of the approach table 12.

When a suflicient number of bars have been moved to this position over thClI'OliS l 8,'the -shaft 3'6"is actuated to cause'the arm35 to retractto a lowerposition and.

the bars are dropped onto the upper portions of the rolls 18. In this way, aconsiderable number of bars will be lowered ontothe rolls at the sametime. Naturally,

these bars have been aligned by the aligning roll 30 and.

lie in coextensive relationship. .l. Then the rolls 18 are rotated-by the gear mechanism20inthe housing 21 of the runott' table and the bars proceed in abody :to the.

shear. At'the shear all the front ends iwill be cropped at the same time and the} bars will be cut as a unit to.

The inventionhaving been thus described-what is claimed as new-and desired to secure-byLetters Patent is: A stop member for use on a bar cooling bed having movable and stationary racks and having driven aligning rolls associated with: the stationary racks at the discharge side of the bed,co'mprising1a main body portion adapted'to extend in a-vertical plane in line with the rollers-to determine the positions of the ends of the bars, abutmentplates extending from one end of .the main body portion adaptedto prevent sideways movement of the stop member, a leg extending downwardly from one end of the mainpbodyportion adapted to rest on the stationary rack, and a finger element extending downwardly from the other endadapted toprevent movement of the i stop member in a direction parallel to the rack.

-; Re astere is thefile of this patent A UNITE]? STATESHPA'IENTSY 3

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