US2940612A - Turn-over gear for use with rolling mills and the like - Google Patents

Description

TURN-OVER GEAR FOR USE WITH ROLLING MILLS AND THE LIKE Filed Jan. 18, 1957 'l'. A. G. SHIMELD 4 Sheets-Sheet l Attorney;

`Fume `14, 1960 T. A. G. sHxMELD TURN-OVER GEAR FOR USE WITH ROLLING MILLS AND THE LIKE Filed Jan. 18, 1957 4 Sheets-She'eb 2 Inventor` EN exAnde/Q. GEnRjE S/'meld j A'ttorneys I June 14, 1960 T. A. G. SHIMELD TURN-OVER GEAR FOR USE WITH ROLLING MILLS AND THE LIKE Filed Jan. 18, 1957 FIG.3.

4 Sheets-Sheet 5 IV ,ILA

Inventor 72W lzuudm eane Sh/'meld `une 14, 1960 T. A. G. sHiMELD TURN-OVER GEAR FOR USE WITH ROLLING MILLS AND THE LIKE Filed Jan. 18, 1957 4 Sheets-Sheet 4 Me/@A0625 Attorneys nited States TURN-OVER GEAR FOR USE WITH ROLLING MILLS AND THE LIKE Tom Alexander George Shimeld, Sheilield, England, aissignor to Davy and United Engineering Company, Limited, Sheffield, England This invention relates to a turn over gear for use in conjunction with a rolling mill or the like.

' It is common practice in rolling mills to deliver a rolled billet, bar or structural section on to a series of driven conveyor rollers which take it to a sawing, shearing or like dividing appliance and thence to a further series of rollers from which the severed pieces are transferred one by one to a series of skid rails lying in a direction per pendicular to the run of the conveyor, the rails forming a bank upon which the pieces are allowed to cool.- The pieces are usually transferred by a series of skid monkeys moving in tracks between the rails, and each provided with a ratchet linger so that the skid monkey is capable of moving the pieces, individually or collectively, in av drection at right angles to the direction of the conveyor and is depressed as it travels beneath the pieces in a return direction.

When cooling structural shapes such as I beams, particularly broad-flanged beams, which are rolled and divided with their ilanges in a vertical plane, it is desirable to turn the piece through an angle of 90 in order to avoid damage to the edges of the flanges. Moreover a plurality of large l-beams arranged on the skid rails with their anges horizontal normally occupy less space than the same number of beams arranged with their anges vertical. Since the space in a mill shed is restricted, this is an additional reason why the beams are left to cool with their ilanges horizontal.

After the beams have cooled it is usual to pass them through a straightening device with the llanges of the beams vertical. It is therefore necessary to turn the beams on the cooling bank down so that their flanges are vertical before they pass to be straightened.

Various forms of turn-over gear for rolled sections are well known in the art but they suifer from one or more of the following disadvantages:

(a) They are very cumbersome and/or costly.

(b) The turning means may comprise serrated fingers which damage the surface of the section,

(c) The gear cannot be retracted until the section has been withdrawn longitudinally and (d) The gear is unreliable in operation.

The object of the invention is to provide a simple turnover gear which does not suier from the above disadvantages.

According to the invention a turn-over gear for turning rolled steel sections and the like, comprises a carriage movable between skid rails upon which sections to be turned are received, a guide-way along which the carriage may lbe moved, means to move the carriage along said guideway, a lifting member pivotally mounted on said carriage and having an inoperative position below the level of said skid rails, a pusher member associated with the carriage and having an operative position in which the pusher member projects above the skid rails, and means associated with said guide-way to pivot said lifting member to an operative position, in which the lifting atentl is cut in the side members 1 as shown.

2,946,612 K Patented June 14, 1960 lice Y 2 member projects above the skid rails, said means becoming operative at a predetermined pointV during the travel of the carriage along the guide-way in one direction.

The pusher member may be pivotally mounted on the carriage and two alternative pivot axes may be provided, one of said axes being so arranged that if the pusher member is pivoted thereabout the lifting member is non` effective. f f

The means for moving the lifting member about its axis may be a ramp arranged to co-act with the lifting member as the carriage is moved.

The invention will be described by way of example with reierlnce to the accompanying diagrammatic drawings in w c Figure l is a section through a turn-over gear arranged so that the lifting member is eifective;

Figure 2 is a part section similar to Figure 1, in which the lifting member has been moved about its axis;

Figure 3 is a section on the line IIl-III of Figure 1;

Figure 4 is a diagrammatic section through part of a turn-over gear arranged so that the lifting member is non-elfective;

Figure 5 is a section similar to Figure 4 in which the lifting member has been moved about its axis;

Figure 6 is a section on the line Vl-VI of Figure 4 and,

Figure 7 is a diagram showing the movement of the gear in turning down a section. i

Referring. to the drawings the turn-over gear comprises a carriage formed of two spaced apartside members- 1 which is provided with four wheels 2 'running on axles 3 journalled in the side members 1. A substantially L-shaped lifting member 4 is pivoted at one extremity about an axis 5 journalled in the side members 1. The lifting member comprises two elements 6 each L-shaped. which are joined by ribs 7 and 8. A roller 9 is pivoted on an axis 10 journalled between stop plates 11, welded to the outer sides of the elements 6. At its upper extremity each element 6 is formed with a step 12, the purpose of which will be described hereafter. A collar 13 Vsurrounds the axis 5 and is spaced therefrom by a bearing 14. A bearing 15 is provided between the roller 9 and the axis 10.

A stop 16 is welded between the side members 1 and co-acts with one face of each of the elements 6 when they are in the position shown in Figure 1. A recess 17 A pusher member 18 of substantially trapezoidal shape has a projection 19 secured to each of its sides. Two pairs of recesses 20 and 21 are formed in the top edge of the side members 1 and provide two alternative positions for the reception of the projections 19 and therefore, two alternative axes about which the pusher member may pivot. Stops 22 and 23 are provided to support one end of the pusher member as shown. The other end of the pusher member projects above the top of the side members 1 and is formed .with a recessed surface 24 and an operative pushing surface 25.

.The carriage is `arranged to run between channelled guides 26, 27 on the lower inner surface of which is provided a bearing rail 28. The wheels 2 have a frustoconical portion 29, which combined with the angle at which the rail 28 is set, tends to keep the carriage central between the guides 26, 27.

A ramp 30 below the guides 26, 27 is arranged to co-act with the roller 9 at la predetermined point. Rails 31 are provided to receive the lengths of rolled section y drums (not shown). Y 1 Referringnw' to'Figlrer 7;-a stop 361isl provided: to

The carriageV is. moved .along` betvveen. the guides 26V,k

27 by wire ropes 34 and 35 which are wound about driven Vconveyor,is. indicafedat-v 37y and is; aranged to convey lthe turnedVK downf beams toptheY straightening; device (not ReferringforFiguresl l andl 2, an=V Isec'tion Vbear'n V32 has been left to cool with its anges horizontaliandit is* desiredlomoveait tothek rightin the gures to a sary to'turn the beam, as Yit is straightenedvvvitir-its` anges iSv-moved aboutits axis-5. As' shown in Figure-,2vvv ,the step 12'; engagesY under the-edge of the angefo the i Ibearnsothatas the carriage continues to move to'the right ,the beamY is pushed ina-tilted position" alonglthe skidlfi'ailsuntilE thev friction between-the beam andthe rails causes the beam to be turned down to the position indicated-1 inrchain lines in Figure The carriag'ef is moved Yto the right -until=it=engages-the stopV 36 (see Fig Viure' 7); by: 'Which time the beamr hasbeen-delivered-;on

to the conveyor'37. The carriage is thenmovedibaek tthe left'randthe-reeess'ed surface 24 engages with'the next beamV which has been delivered duringf the turning down ofthe first beam.VV The pusher member pivots about the'projections'l 19in therecesszl and passes under the t prsirig, inf combination;acarrigemovablefbetweeir horiwithout disturbing it* Whentbe pusher Vmember* isff'clear` of thei beam itwilllpivotlabout its axis and re# tuin:y to the-positionshown in Figure l. 'II-'he direction Y of' the motion'of the carriage is then'reversedfand-the turn-down operationis performed on the nextbeam. y Y The'sequence of operationsis best-shown in Figurer 7 where subsequentv positionsof the' pusher mernlzaer and lifting., member` are shownY in dashlines and chain linesi v Y It` willbe seenY that the position ofthe ramp 3 0 rela-jY of? importance sinceA the liftingvlmeinberjmust not-rise over.

Y tively? to:th'evYp/o'sition-inawhich` the beamfis delivered, ris

alteration thene'the'ramp may be sofmounted as tobe adjustable .in directionsv parallel-'toY they direction `of` movement o f the carriagev Y f Y I merely to move a beam along the rails 31 without turn-Y ing it over, the pusher member 18 'is so mounted that the projections 19 are received inthe recesses 20 as shown. As the carriage moves from left to right the operative surface 25 of the pusher member 18 is always Yin `advanceof tbe lifting member and' thus' tli latter is rendered non-*eifective as the'beani 32z is always moved aheadofthe'step12-.- Y Y Y Y It"Y will; bey Vappreciated thatra plurality of, carriages may be arranged along the length? of aE beam" and arranged to operate simultaneously. Moreover, the turnover'geariiiay bef used foi-"turning iilgts' of billets as Well-'as rolled sections; Y I claim: x

A turnover.g'eai for tu'r'nir'ig'A rolled steel I section beams fromY the vertical to the horizontal position'commoves, ineens-.for moving@saidi'earriageaalong said gnide y Way;:a *pusher member mounted on saidz'carriageI and .having-ian' operative position iii Whicha said puslrmeinbert projects above said' skdf'railstt'o engage one flange of'` an I! beam and push iti horizontallyalong-said skid rails,y a'- lifting member including' a roller pivotally' mountedifonfsaid cfirriagev for vertical swingigmovement between an inoperative positioirinY which Vsaidflifting membeiv lies wholely. below'thetopof said skid railskand a second psitio'nin 'vvliichf saidlifting member tilts said ange-"and,.as a'fr'esult ofthe continued movement of the carriage,.V pushesV the beam in artilted position` alongvsaid skid rails and turns the beani to Ythe horizontalposition, an inclined ramp for said roller 'associated'with'v said guide-way fr raising said lifting member from said inopeatve" position to sidsecond position, and a` horizontalfv ramp'V surface following Vsaid inclined rarrp for maintaining said lifting' member' in said second position.

References Cited in tbe fileofthis patent 'Y PATNTS Y

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