US3810376A - Roll stand for cold working of rolled steel in rod or wire form - Google Patents

Roll stand for cold working of rolled steel in rod or wire form Download PDF

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Publication number
US3810376A
US3810376A US00239685A US23968572A US3810376A US 3810376 A US3810376 A US 3810376A US 00239685 A US00239685 A US 00239685A US 23968572 A US23968572 A US 23968572A US 3810376 A US3810376 A US 3810376A
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US
United States
Prior art keywords
rod
roll stand
profile
worked
drive shafts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00239685A
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English (en)
Inventor
E Elle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baustahlgewebe GmbH
Original Assignee
Baustahlgewebe GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19712116426 external-priority patent/DE2116426C/de
Application filed by Baustahlgewebe GmbH filed Critical Baustahlgewebe GmbH
Application granted granted Critical
Publication of US3810376A publication Critical patent/US3810376A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/14—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by pivotally displacing

Definitions

  • Each of the 1 1 Field of Search shafts for the profile rollers is driven from its corre- 137 sponding primary or secondary drive shaft and each of said shafts for the profile rollers is pivotally mounted [56] Ref ren es C t d with respect to its primary or secondary drive shaft.
  • the invention relates to aroll stand for the cold working of rolled steel in rod or wire form of the type wherein three opposing profile rollers are arranged around the circumference of the to-be-worked rod at intervals of 120 and which rollers are provided with grooves for the production of a profile on the rod surface.
  • Such an arrangement is employed for the manufacture of reinforcing rods for concrete wherein the required ribs for increased adhesion to the concrete are produced by a cold rolling process.
  • the rod or wire For the manufacture of such rod it is customary to prestrengthen the rod or wire before bringing up the profiling step. This is done generally by drawing through a die whereby the diameter of the wire is simultaneously equalized. The pulling force necessary for the drawing is provided by a driven drawing wheel, which in part also serves for the winding of the treated wire.
  • An object of the invention to find a practical way of bringing about by a cold working process a uniform series of screw pitched or proportionately offset ribs of like quality on the surface of rods of different diametors.
  • the invention obtains this object by a roller stand which introduces to the art the following, that the primary drive shaft drives two beveled gear drives and therethrough two secondary drive shafts arranged at angles of 60 to the primary drive shaft and that gears connect the resultant three drive shafts to the shafts of the profile rollers and the shafts of the'rollers are supported around the three drive shafts by pivotable connecting arms.
  • each of the connecting arms can be flexibly connected to its own connecting rod which is arranged essentially parallel to the axis of the rod to-beworked, which connecting rod is pivoted on a guide bushing which is fastened to a concentric (with respect to the wire) arranged hollow adjusting spindel and is adjustable along the same in the longitudinal direction of the rod or wire to be worked.
  • the connecting rods can be formed as turnbuckles, making possible the separate adjustability of the individual profile rolls.
  • the guide bushing on the adjusting spindel is appropriately slidingly held under the pressure of a spring element with the effect that the pressure of the profile rolls on the wire is against the springelement and can be balanced for eventual diameter inaccuracy.
  • the adjusting spindle itself is appropriately adjustable in the longitudinal direction of the wire by means of a worm drive.
  • FIG. I is a front elevational, cross sectional, view taken transversely of the axis of the rod corresponding to line I-I of FIG. 2.
  • FIG. 2 is a side cross sectional view taken lengthwise of the axis of the rod corresponding to line llIl of FIG. I. Y
  • FIG. 3 is a side view partly cut away taken lengthwise of the axis of the rod corresponding to line Ill-Ill OF FIG. 1.
  • FIG. 4 is a cross sectional view taken on line IVIV of FIG. 2.
  • FIG. 5 is a force parallelgram for the construction of the pressing action of the ribbed rollers.
  • roller stand ofthe invention will, as will be noted from FIGS. l4, be driven through primary drive shaft 8 from a speed regulatable electric motor I or from another suitable drive arrangement, the secondary drive shafts 9 and 10 being driven through the bevel gear pairs 19 and 20.
  • the gear wheel pairs 21, 22 and 23 mounted on drive shafts 9, 8 and I0, and adjacent drive shafts 25, 24 and 26, the profile rolls 7, 6 and 5 being mounted on the latter shafts.
  • the drive shafts 8, 9 and 10 are rotatingly supported in the roll stand 38 by means of bearing pairs 28, 27 and 29 in planes parallel to the shafts 24, 25, 26, the latter holding profile rollers 6, 5 and 7, respectively in position with their peripheries approximately in contact with their surfaces at about to each other.
  • Connecting arms 2, 3, 4 arearranged respectively on the coordinated drive shafts 8, l0 and 9 so as to swivel about the axle shaft 8a, 10a and 9a (FIG. 5).
  • the swing of the connecting arms 2, 3 and 4 results by means of improved tie bars l4, l5, 16 (FIG. 2) which have one end attached to connecting arms 2, 3 and 4 and the other end pivotally mounted on guide bushing 13 by bolts 30, 31 and 32.
  • the guide bushing 13 is slidingly fastened to an adjusting spindle l7 and is urged to the left as shown in FIG. 3 through a lock nut 33 (fixed to spindle 17) by means of a spring element 12 exerting pressure from its disk shaped spring heads against the collar-like guide bushing 13.
  • the adjusting spindle 17 itself, which is moveably mounted in the roller stand wall 38 and the housing 18 and can be displaced axially with respect to the axis 11 of wire 11a by means ofa worm gear 35 and its worm 36 acting as a spindle nut.
  • profile rollers 5, 6, 7 can be swung out to about 90 with respect to the axis of the drive shaft 8, 9, 10.
  • a broader working area provided which makes possible a fitting or changeover of rod or work tool without difficulty.
  • the invention reveals furthermore the possibility of attaining an exact cross cut of the rods travelling through the apparatus, depending on the roll-off diameter and the angle of rotation of the profile rolls 5, 6 and 7 in connection with a measuring-device, by way of example an angle of rotation potentiometer.
  • each of the connecting arms is connected to a corresponding connecting rod substantially parallel to the axis of the to-be-worked rod, which connecting rods are linked to a guide bushing which is fastened onto a hollow control spindle substantially concentric to the rod to-be-worked and alongwhich it is shiftable longitudinally with respect to the rod.
  • connection rod is formed as a turn-buckle.
  • Roll stand as claimed in claim 2 characterized in that the guide bushing on the adjusting spindle is slidably fastened with respect to said spindle through the intermediate connection with a spring element.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Metal Rolling (AREA)
US00239685A 1971-04-03 1972-03-30 Roll stand for cold working of rolled steel in rod or wire form Expired - Lifetime US3810376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712116426 DE2116426C (de) 1971-04-03 Walzgerüst zur Kaltbearbeitung von Walzstahl in Stab oder Drahtform

Publications (1)

Publication Number Publication Date
US3810376A true US3810376A (en) 1974-05-14

Family

ID=5803824

Family Applications (1)

Application Number Title Priority Date Filing Date
US00239685A Expired - Lifetime US3810376A (en) 1971-04-03 1972-03-30 Roll stand for cold working of rolled steel in rod or wire form

Country Status (10)

Country Link
US (1) US3810376A (de)
AT (1) AT317124B (de)
BE (1) BE781280A (de)
BR (1) BR7201924D0 (de)
CA (1) CA944593A (de)
CH (1) CH536143A (de)
DE (1) DE2116426B1 (de)
ES (1) ES401381A1 (de)
IT (1) IT954509B (de)
NL (1) NL7203840A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294306A (en) * 1979-09-14 1981-10-13 Berenov Alexandr D Withdrawal roll unit for horizontal continuous billet casting machines
US5167585A (en) * 1990-07-17 1992-12-01 Emhart Inc. Blind riveting assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582550B1 (fr) * 1985-05-29 1989-06-02 Trefilunion Dispositif de laminage et de crantage a froid d'un fil metallique
SE460768B (sv) * 1988-03-11 1989-11-20 Morgaardshammar Ab Traadblock
DE69130805T2 (de) * 1990-10-03 1999-11-04 Hitachi Zosen Corp., Osaka Vorrichtung zum Befestigen einer Arbeitswalze in einem Walzwerk
DE10307199B3 (de) * 2003-02-20 2004-08-19 Sms Meer Gmbh Walzgerüst zum Walzen von langgestrecktem Gut

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481886A (en) * 1922-07-19 1924-01-29 Michigan Steel Tube Products C Machine for feeding tubing
US2094920A (en) * 1934-05-25 1937-10-05 Babcock & Wilcox Tube Company Rolling mill
US2525590A (en) * 1946-12-07 1950-10-10 William F Stahl Feed apparatus for tubes
FR1140088A (fr) * 1956-01-05 1957-07-11 Vérin électrique à mouvement continu
US3014628A (en) * 1959-12-07 1961-12-26 Foster & Allen Inc Pinch-roll take-off apparatus
US3182206A (en) * 1962-01-29 1965-05-04 Electronic Comm Inc Multidimensional pulse height trackers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481886A (en) * 1922-07-19 1924-01-29 Michigan Steel Tube Products C Machine for feeding tubing
US2094920A (en) * 1934-05-25 1937-10-05 Babcock & Wilcox Tube Company Rolling mill
US2525590A (en) * 1946-12-07 1950-10-10 William F Stahl Feed apparatus for tubes
FR1140088A (fr) * 1956-01-05 1957-07-11 Vérin électrique à mouvement continu
US3014628A (en) * 1959-12-07 1961-12-26 Foster & Allen Inc Pinch-roll take-off apparatus
US3182206A (en) * 1962-01-29 1965-05-04 Electronic Comm Inc Multidimensional pulse height trackers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294306A (en) * 1979-09-14 1981-10-13 Berenov Alexandr D Withdrawal roll unit for horizontal continuous billet casting machines
US5167585A (en) * 1990-07-17 1992-12-01 Emhart Inc. Blind riveting assembly

Also Published As

Publication number Publication date
BE781280A (fr) 1972-07-17
CH536143A (de) 1973-04-30
NL7203840A (de) 1972-10-05
BR7201924D0 (pt) 1973-06-12
IT954509B (it) 1973-09-15
ES401381A1 (es) 1975-03-01
CA944593A (en) 1974-04-02
DE2116426B1 (de) 1972-10-19
AT317124B (de) 1974-08-12

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