US3817072A - Twisting apparatus - Google Patents

Twisting apparatus Download PDF

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Publication number
US3817072A
US3817072A US00243336A US24333672A US3817072A US 3817072 A US3817072 A US 3817072A US 00243336 A US00243336 A US 00243336A US 24333672 A US24333672 A US 24333672A US 3817072 A US3817072 A US 3817072A
Authority
US
United States
Prior art keywords
twist
twisting
roll
twist rollers
rollers
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
US00243336A
Other languages
English (en)
Inventor
K Balve
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.)
Siemens Industry Inc
Original Assignee
Morgan Construction Co
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
Application filed by Morgan Construction Co filed Critical Morgan Construction Co
Application granted granted Critical
Publication of US3817072A publication Critical patent/US3817072A/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
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/20—Revolving, turning-over, or like manipulation of work, e.g. revolving in trio stands
    • B21B39/28—Revolving, turning-over, or like manipulation of work, e.g. revolving in trio stands by means of guide members shaped to revolve the work during its passage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/22—Hinged chocks

Definitions

  • ABSTRACT [30] Foreign Application Priority Data Apr. 17, 1971 Germany 2118725
  • the apparatus includes one [52] US. Cl 72/231, 72/25, 72/250 twist roll mounted on a fixed housing and another [51] Int. Cl B21b 41/08 twist roll mounted on a hood which is supported by Field Of Search and pivotally adjustable relative to the fixed housing, 5 5 the said pivotal adjustment providing a means of varying the twist being imparted to the rolled strand pass- [56] References C ted ing between the two twist rolls.
  • housings constructed in this way permit the production of rolled stock of relatively good dimensional accuracy.
  • twist housings are used as twist apparatus.
  • any disturbance of the twisting operation in one rolled strand in most cases also affects all other rolled strands so that the entire merchant bar and/or wire rod mill must be shut down so that the defects may be remedied.
  • the present invention is based on known twisting apparatus with a separate twisting unit for each rolled strand and the purpose of the invention is to eliminate the disadvantages to which known kinds of twisting apparatus are subject and to combine the advantages which are characteristic of known kinds of twisting apparatus.
  • twisting apparatus for multi-strand merchant bar and- /or wire rod mills in which the twisting units associated with each individualrolled strand have a narrow structural width and may thus be employed in conjunction with roll pass housings having short rolls with roll passes disposed at a short distance from each other.
  • Another object of the present invention is to provide means for adjusting the lateral spacing between the twist rolls.
  • the rolled strand Due to the alternately shouldered external surfaces of the cooperating twist rolls and because of the simple adjusting motion of the twist rolls, the rolled strand is twisted about its longitudinal axis, thus achieving the desired twisting effect.
  • the overall width of the individual twisting units according to the present invention is only slightly greater than the working width of the twisting rolls. If a plurality of twisting units are disposed adjacently side by side the distance between adjacent roll passes in the grooved rolls will be reduced so that the rolls of short length resulting from such construction enable narrow and rigid housing structures to be employed for the production of dimensionally accurate rolled stock.
  • one twist roll is mounted for rotation about a fixed axis in one housing while the other twist roll is movably mounted so as to be slidable or pivotable in a direction transverse to its axis of rotation relative to the said housing.
  • the pivotable or slidable twist roll is supported in a hood which is mounted on the housing for the other twist roll.
  • a twisting'apparatus according to the invention and having a pivotably mounted twist roll is advantageously characterized in that the pivotal axis about which adjustments are made is offset along the rolled strand relative to the rotational axis of the twist roll which may be displaced about the aforementioned pivotal axis.
  • the pivotal axis of the displaceable twist roll is disposed upstream of the twist roll axis as seen in the running direction of the rolled strand.
  • hood is guided outside the twist roll circumference between two slide cheeks of the housing and may be adjustable, for example by means of a screw spindle disposed in the yoke of the housing.
  • FIG. 1 is a side view of a twisting unit according to the invention.
  • FIG. 2 is a section along the line lI--II through the twisting unit according to FIG. 1;
  • FIG. 3 is an end view of the twisting unit of FIG. 1 as seen in the direction of the arrow Ill;
  • FIG. 4 is a section along the line IV-IV of FIG. 1,
  • the adjustment of the twisting roll 2 in the direction towards twisting roll 1 is performed in a direction transverse to its axis of rotation, namely in that the hood 6, supporting the said twisting roll 2, may be pivoted about the axis 7 relative to the housing 4 which supports the twisting roll 1.
  • Pivoting of the hood 6 relative to the housing 4 is performed by means of a screw spindle 9 which engages into a screwthreaded part 10 of the housing 4 and thrusts on to a projection 11 on the hood 6, the said projection 11 being guided in a pocket 12 of the housing 4.
  • One side of a spring 13 bears on the base of the pocket 12 and thrusts against the underside of the projection 11 so that the said projection is maintained in constant contact with the head of the screw spindle 9.
  • the bearing shaft 7 for the hood 6 is constructed as a plug-in shaft, the two ends of which are supported in separate eyes 14 of the housing 4.
  • a bearing eye 15 of the hood 6 engages between the two eyes 14 of the housing 4, the plug-in shaft 7 traversing through the said bearing eye 15.
  • the position of the plug-in shaft 7 is secured by means of a circumferential groove 16 into which a clamping screw 17 engages which is adjustably mounted on the bearing eye 15 of the hood 6.
  • the twisting roll 2 need only be adjusted in a direction transverse to its axis of rotation towards the twisting roll 1 in order to achieve the twisting effect in the twisting unit according to the invention, it is possible for the bearing housing 4 of the twisting roll 1 and v the bearing hood 6 of the twisting roll 2 to be constructed to a width which is only slightly greater than v the width of the twisting rolls. Accordingly, the roll passes may be provided in the working rolls of the roll housings at a slight distance from each other.
  • the hood 6, supporting the adjustable twisting roll 2 to be disposed outside the twisting roll circumference between two sliding checks of the housing 4 and to be adjusted towards the other twisting roll 1 by means of a screw spindle or a screw spindle disposed in a yoke of the housing.
  • a single-strand twist guide for twisting a product length moving longitudinally along the mill pass line
  • said apparatus comprising: a pair of laterally spaced twist rollers positioned on opposite sides of the mill pass line, the said twist rollers each having a shoulder and a cylindrical portion, the said shoulders and cylindrical portions being cooperatively arranged to engage and twist a product length passing therebetween, with the degree of twist imparted to the product being proportional to the distance between said twist rollers; a fixed base carrying one of said'twist rollers; a hood member carrying the other of said twist rollers, the said hood member being pivotally mounted on said fixed base; and adjustment means for pivotally adjusting said hood member in relation to said base to vary the distance between said twist rollers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Wire Processing (AREA)
US00243336A 1971-04-17 1972-04-12 Twisting apparatus Expired - Lifetime US3817072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712118725 DE2118725A1 (de) 1971-04-17 1971-04-17 Drallvorrichtung für mehradrige Feineisen- und/oder Drahtstraßen

Publications (1)

Publication Number Publication Date
US3817072A true US3817072A (en) 1974-06-18

Family

ID=5805006

Family Applications (1)

Application Number Title Priority Date Filing Date
US00243336A Expired - Lifetime US3817072A (en) 1971-04-17 1972-04-12 Twisting apparatus

Country Status (6)

Country Link
US (1) US3817072A (de)
BE (1) BE782195A (de)
DE (1) DE2118725A1 (de)
FR (1) FR2134058A1 (de)
GB (1) GB1373679A (de)
IT (1) IT957177B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727739A (en) * 1985-04-22 1988-03-01 Danieli & C. Officine Meccaniche Spa Box to separate rolled stock

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2016141A (en) * 1931-04-01 1935-10-01 Bethlehem Steel Corp Rolling mill guide
US3468151A (en) * 1965-02-26 1969-09-23 Spidem Ste Nle Rolling mill

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2016141A (en) * 1931-04-01 1935-10-01 Bethlehem Steel Corp Rolling mill guide
US3468151A (en) * 1965-02-26 1969-09-23 Spidem Ste Nle Rolling mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727739A (en) * 1985-04-22 1988-03-01 Danieli & C. Officine Meccaniche Spa Box to separate rolled stock

Also Published As

Publication number Publication date
IT957177B (it) 1973-10-10
FR2134058A1 (de) 1972-12-01
DE2118725A1 (de) 1972-11-02
GB1373679A (en) 1974-11-13
BE782195A (fr) 1972-08-16

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