US822879A

US822879A - Rolling-mill.

Info

Publication number: US822879A
Application number: US15559903A
Authority: US
Inventors: Otto Briede
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-05-04
Filing date: 1903-05-04
Publication date: 1906-06-05
Anticipated expiration: 1923-06-05

Description

No. 822,879 ma ma mm 5, 1906 0. BRIEDE ROLLING MILL.

APPLIGATIDH FILED MAYQ. 1903.

v 4 u 5 M v on IT OTTO BRIIQIHC, ()F BENltA'lll, NEAR IJUCSELDORF, (VlERTVIANY.

ROLLlNG-W'HLL.

Specification of Letters Patent Patents-u June 1 5-, 1906.

Application filed Ma $1993 Serial lli'ii 155,599.

the invention being especially eppljrahlv'iu i the mode ation of seamless tuhes. ln filltfll nulls the hillel' or ingot t he din-ed should follow the imivrcment or the swnges or dies, ext-opt for a lorsurd feed prw j poriinnel to the reduction in be cil'eetieal at each oscillation of the swngvs or dies: The s rnchronons HlUVOiilUllli-iul the dies orsweges and the ingot or billet have been eileewsl lay the clnphrrmenl oi spring-z whirl! tend to 5 divs or swngos 1 hulzlthibillet in nornmlp sition,hut permih 3 King it in he moved by the dies or swnges when ihc him or (ii-'PPl hillsr i soul! as liii! live l'iliw' the idih t ii i=1 turuvd l0 ilnlnml posilien l'y ihe spring. For nwrlmnii-nl are as it nhle in murder swarm. r the [[Lll inecllnllir-nn n ill the so that theliilitl will hian: positively with the HXilgbfh This lnrrhziniwil ronneotion is gL'llti'illll'llrltl in winner-filler with bull'- ing -spi" 4 to prerrni injury er shock to the nw-hznnsm The present inveniion has for its nlrlect tlw prmiision of means for positirel ret'iprn' rating the billet, such rcriprnrulion being;- synchronons with and preferably vlltfileel hi1 the oscillating dies or swngcs. The li'lfi ih tion is hereinafter more fully described mid elaimed.

1n the accompanying drawings, forming a part of this specification, Figure l is an elei'etion of my improved mechanism for feeding the billet to the dies or swages which are represented diagmnnneticelly, and Fig. 2 is a dcteil view illustrating the manner of connect ing the drivingdieed to the feed-rod.

1n the practice of the invention the hiliet or ingot c is hold or supported by any suitable means, ed apted to the article t9 be 0 m1- atcd on and the product desired, In re ueing billets or ingots to tubes the holder or support consists of the mandrel b, which is secured to the feed-rod it by a suitable coupling in. The feed-rod is carried by the slide- .metinieedcsii hluclr or crossJn-ud and provision made fer giving: to the ((ll-lt'hl e, hungiindinel lilflvillltflll independent oi the sliding block. 'lhis ('2 he lirii'er ted innnmy vi airs-es, for example, by forming a threaded portion on the rod adapted to pass through an internallythremled opening through the sliding block or (rr': Fllfiitil g. which is mmnhlr mounted in suitablegnideweys on the licilnui the mill.

The sliding block or tlUi hend is given a hairl -oilni-forth movement L,. \nchr nuus with and equal in nlneunt to the nmvementsot the These ends or results are prefera ly obtained hyronnrcting the slicl ing laln lr to one of the dies or sweges, its r-in nrn, the sliding block being {runner-ted by n linlzj'to a lever :1, which in turn is connected h ;z rod :1 to cm of the swages or dies a. 3 this construction the, billet or ingot is given a linelvend forth movement equal to 'in: :l:r mous with the lnuYeinents oi' the i tr; or wages.

irnrision mode for imparting it forward o: ford :iwv nwnt oi the feed-rod lllilCllOHdmi c-l i sliding hlorzlr n'oportionul to the inn in he ull'vri ml lay the swag'es during waveh osa ilhtiioir This iced llllJVElllQl'il can hr 3I"Hli(''ll in many ways -ns, for example, the fwd-rod may he formed with a threaded pmti n izngeging V an internally threaded opening thmu 'h the sliding hloch, as de scribed; ll rlie retetion of this feed-rod it, with the holder and ingot will he advanced \Yiilwit any change in the hznzh-nnd-lorth mo mneni, oi the sliding block and Feed-rod; This forward feed of the billet o1 ingot should never at the time the hitter is released from the bile of the sweges er dive. n other we the feed of the billets is Step by step, or lnteriniltent. Such feed can be reflected in many ways without departing from the spirit of my improvement. A convenient means to this end consists in so mounting e I power-driven wheel 1 on the feed-rod it that the latter will rotate with the wheel, but free to move longitudinally through the sen 1e. If the wheel *5 is driven continuously, a spring 14 is interpesed between an abutment on the feed-rod and a head 0, movably mounted on the billet-holder as the mandrel l) and serv ing as a hearing for the billet or ingot. While the billet is gripped by the dies or swages it cannot be fed through between, and hence the forward movement of the feed-rod during such gripping by the dies will result only in the compression {)f the spring it; but as soon ioo as the billet is released the spring will expand and force the billet forward between the dies or swages. In other words, the feed of the billet or ingot is intermittent.

As heretofore stated, the billet-holder should move back and forth with the dies or swages. In this case means supplementing the operation of the dies or swages in producing t ese movements are employed and are especially desirable for returning the billetholder after the swaging action of the dies to the position where feed occurs. Durin the swaging movement of the dies the latter ave such a gri on the billet that there is little liability o slip; but on the return swing when the grip is less effective there ma be some slip of the dies on the billet, and ence it is desirable to employ means which will insure the return of the billet and holder to feed position. In the present case this means consists of the connection from the dies or swages to the slidin cross-head.

It is desirable t at the ingot or billet should be partially rotated during reduction and preferabl at each forward feed. Many wa s will rea ily suggest themselves to those ski led in the art for effecting this rotation, and hence I do not limit myself as regards the terms of the broader claims to the particular construction herein shown and described, al thou h I have found the same well adapted for tfie purpose. This construction consists in connecting the respective ends of sprin Y k to the abutment on the feed-rod and to t 0 head 0, which is constructed to engage the rear'end of the billet, as by prongs or other suitable means. When the feed-rod is rotated in the manner described, while the billet is gripped by the dies or swages, the spring will be laced under a torsional strain, which when t e billet is released will become efi'ective to rotate the billet.

It is characteristic of my improvement that by imparting a feed movement to the mandrel just prior to or during each swing of the swages a reduction of the ingot can be effected during both the back ,and forward oscillations of the swagesas, for example, if when the swages are in the extreme righthand position and begin to move to the left the shaft h is rotated, the swages, as well as the guide-block, will move to the lel' t but a slight movement of the mandrel and billet to the right will be given, or, in other words, bv reason of the rotation of the shaft it through the guide-block the ingot will not move as uickly to the right as the swages, the maniirel being advanced b the rotation of the shaft 71. to the right, so that during this movement a rolling out of the ingot will take place. If when the swages are in extreme left position and they (JUITIITIBHCO their return movement to the right the shaft h is rotated at the bcginningof on during such return movement, the ingot willmove with somewhat higher velocity than the swages, so that during this back stroke a rolling out or reduction will occur.

It will be noted that in the swaging apparatus herein described the oscillatory swagin -dies enga e or have a bite on the ingot or illet, whic exec t at the brief mo ment of feed is practice ly continuous, as a result of which the dies at the time when a feed is desired ut the billet in osition for such feed and a so determine or fix a limit to the amount of feed. In other words, the feed movement of the billet is determined and controlled by the operative faces of the oscillating swages. Although the feed mechanism may be ready for operation at any time, it does not become practically operative to shift the billet forward until the swages reach a position in their oscillation where their bite is relaxed or entirely loosened. When the grip of the swages is relaxed, the billet is moved forward until a portion thereof abuts against the operative faces of the swages. This forward or feed movement will be dependent to a large extent on the reduction previously effected and will be largely independent of the movement of the feed mechan- ISHI itself.

The term "feed position as used herein is used purely for convenience of description. The Work of this machine when in operation goes on with a cycle or series of movements which must take place in a certain order, though the order may be varied somewhat in different machines. There must be a feeding movement of the billet, also a reducing stroke or movement of the dies, also a reverse stroke, and at or before the beginning of each feed movement the billet must be brought by die or by conjoint action of the die or other mechanism operating on the billet to a proper position for such food. In a general way this position is the one I refer to by the term feed position, and this without reference to its particular place in the cycle of movements except that it must immediately precede thp feeding movement; but in practical operation the work usually goes on with such rapidity that the billet rarely, if ever, occupies such food position for more than an inappreciable time.

l claim herein as my invention 1. In a swinging apparatus the combination of oscillatory rmlucing-dics, feed mechanism having a longitudinally-fnovable memher, and means for imparting a reciprocation to the longitudinally-movable nuunber of the feed mechanism equal to and synchronoiis with the peripheral movement of the swages, substantially as set forth.

2. In a swaging apparatus the combination of oscillatory reducing-dies, a holder for the billet or other article, means for imparting a reciprocatory movement to the holder equal to and synchronous with the periph- IIO tort; cross-head operated by said dies a. feedroll carried by the cross-heed, and means for 1 adjusting the feed-rod relative to the crossheed,lsiibstsntiarlly as set forth.

a swaging apparatus the combine,- 1 smllatory reducing-(hes, a f13$= tor cro head operated h anti synehrr nously with said dies, e feed-rod carried by the cross-heed and provitied with means for engaging the article, and means for rotating the feed-rod, substantially set forth.

6. In it sweging apparatus the cornhine- Lion of oscillatory reducing or singing (lies, a reeiproeetory eross-heed connected to said dies, a feed-rod carried by the cross-heed, end a heed having it longitndinslly-yielding connection to the feed-roll, substantially as set forth. i

7. In a sweging apparatus the eoinhinal li in of oscillatory swaging or red ucing (lies. a, ftuil-I'ufl movable synehroiurnsly with the (llflb means for rotating the feed-rod. ai'hearl adapted to engage the article operated on, end a rotary yielding connection between said head and feed-rod, substantially as set forth.

8. In a swsging apparatus the combine.- tion of oscillatory reducing dies or swages, e longitudinelly-movable mandrel carrying the ingot, means for causing the mandrel to move synchronously with the oscillatory dies or ewe-gas, and means for feeding forward the mandrel on each swing of the swag er, substantially as set forth.

9. In a rolling-mill for rolling seamless metal tubes the combination of oscillatory swsiges and a longitudinallyrnovahle men- (1 rel carrying the ingot, means for positively I sure on the billet connecting the mandrel to the oscillatory sgieges so as to compel the mandrel to positively follow the movement of the swnges, and means for feeding the mandrel.

10. In a, rolling-mill for roll'g g seamless nee-e1 tubes, the combination o; oscillating swnges and a longituilfinally-movable manthe ingot, menus for musing the mandrel to move synrllronousl 5th the us no eilie'tory sweges and menus for l'eeiiin; V nienxireli' 11. In a'forging-nmchine the eonihinnlion i of oscillatory dies or wages en ingot or billet.

holder movable by the (lies or ewe; means for returning the holder he he position when released from the tiles or swages, means for {ceiling the holder toward the dies or swsges, and resilient means for rotating the holder, substantially as set forth.

32, in eforging-maehine the combination of oscillatory lies or swagr-s, means for causingthe billet or other article to reciprocate synchronously with the dies or swngcs and IIiOztDSi OI' exerting a constant {ceiling presor other article, SllllSlSlHb tially as set forth. 7

13, In a swnging apparatus, the combination of oscillating rolls carrying swnging-dies,

a cross-l'ieacl opernte d'hy and synchronous with said rolls, 1;. feed-rod carried by the cross-heed and nroyiiled with means [or engaging; the article, eminieens for rotating the feel-red, snhsfientielly as set forth.

1%. In a sweging apparatus, the eomhine- 5 tion of oscillieting rolls carrying swwzrging-dies, a eros-heatlopcmtfid by said rolls, n feedrod carried hi, the cross-heed, :lfltl a heed yielclingly connected to the feed-rod, suh= stentiellj; as set forth.

15. In e's weging apparatus, the combinetion' of oscillating swages or reducing-(lies, e feed-rod mo veble synchronously with the (lies, means for rotating the feed-rod, ahead adapted to engage the article operated on, and e yielding connection between said head end feed-rod, substantially as set forth.

7 In ifiestiimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

orro Barnes.

V Witnesses:

MAX WEscnnn, WILLIAM Essnnwnrn.