US3330143A - Roller delivery twist unit - Google Patents

Roller delivery twist unit Download PDF

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Publication number
US3330143A
US3330143A US389324A US38932464A US3330143A US 3330143 A US3330143 A US 3330143A US 389324 A US389324 A US 389324A US 38932464 A US38932464 A US 38932464A US 3330143 A US3330143 A US 3330143A
Authority
US
United States
Prior art keywords
twist
guide
core element
passageway
stock
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
US389324A
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English (en)
Inventor
Henry W H Washburn
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
Priority to GB1050949D priority Critical patent/GB1050949A/en
Application filed by Morgan Construction Co filed Critical Morgan Construction Co
Priority to US389324A priority patent/US3330143A/en
Priority to FR28134A priority patent/FR1442966A/fr
Priority to DE19651427972 priority patent/DE1427972A1/de
Application granted granted Critical
Publication of US3330143A publication Critical patent/US3330143A/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

Definitions

  • This invention relates to guide apparatus for use in a rolling mill and more particularly to a roller delivery twist unit utilized in imparting a predetermined degree of twist to stock passing from one roll stand to the next.
  • roller twist units normally include a pair of twist rollers which are spaced to define a twist passageway having a cross-sectional configuration slightly larger than that of the stock emerging from the work rolls.
  • the twist rollers are usually preceded by a stripper guide extending from the twist unit to a point at which it either closely approaches or frictionally engages the work rolls.
  • the stripper guide prevents stocks from adhering to the work rolls and in conventional installations, usually imparts a certain degree of pretwisting to the stock prior to its passage between the twist rollers.
  • twist imparted to the stock as it passes between the twist rollers is inversely proportional to the distance between the twist rollers and the next succeeding roll stand. For example, assuming that the stock is to be turned through an angle of 90 prior to its entry into the next succeeding stand, the degree of twist imparted to the stock by virtue of its passage through the twist passageway may be expressed mathematically as follows:
  • the space occupied by the stripper guide between the work rolls and the twist rollers (x) in the above-mentioned mathematical expression is considerably shortened with a corresponding increase in the distance (y) between the twist rollers and the succeeding roll stand.
  • the stripper guide is rotatably mounted to the twist unit, it may be left in its operative position in frictional or near frictional contact with the work rolls when subsequent adjustments to the twist rollers are made.
  • Another object of the present invention is to provide a roller twist unit with stripper guide means positioned between the twist rollers and the work rolls of the preceding roll stand, said stripper guide means being mounted to the roller twist unit in such a manner as to facilitate subsequent installation of the roller twist unit, thereby avoiding the necessity of tedious settings required with conventional pretwist stripper guides.
  • a still further object of the present invention is to provide means for compensating for slight variations in elevation between the roller twist delivery unit and the work rolls of the preceding roll stand by providing a flexible mounting for the stripper guide.
  • Another object of the present invention is to provide means for quickly disconnecting the stripper guide from the roller twist delivery unit when replacement is necessitated.
  • FIG. 1 is a view in perspective of several roller twist delivery units according to the present invention mounted on a common rest bar;
  • FIG. 2 is a rear end view of a roller twist delivery unit showing the means for rotatably adjusting the twist rollers;
  • FIG. 3 is a sectional view in elevation of the roller twist delivery unit taken along line 3-3 of FIG. 2;
  • FIG. 4 is a sectional view taken along line 4-4 of FIG. 2;
  • FIG. 5 is an enlarged view of the stripper guide mounted on the head assembly with portions broken away to better illustrate structural details.
  • FIG. 1 wherein are best shown general features of the invention, a plurality of roller twist de livery units indicated typically by the reference numerals 10 are shown mounted in adjacent aligned positions on a common underlying saddle plate 12 which is in turn suitably mounted on a rest bar 14.
  • rest bar 14 is afiixed to the roll housing of a particular roll stand and extends transversely beneath the pass line.
  • Saddle plate 12 is held on the rest bar by a plurality of spaced conventional saddle plate clamps 16 partially illustrated in FIGS. 1 and 3.
  • roller twist delivery units 10 are comprised basically of outer box-like housing structures 18 having underlying integrally fabricated longitudinal keys 20 designed to seat themselves within spaced keyways 22 cut into the upper surface of saddle plate 12. Each housing structure is further provided with an inner cylindrical passageway 24 extending longitudinally therethrough as shown in FIG. 2.
  • a tubular barrel member 26 having a head assembly 28 forming an integral part thereof at its forward end is axially inserted for rotation within passageway 24. When the unit is in place on saddle plate 12, the rotational axis of barrel member 26 will coincide with the pass line of the mill.
  • Barrel member 26 is additionally provided at its other end with an adjusting plate 30 fixed thereto by means of retaining bolts 32 extending through arcuate slots 34.
  • integrally fabricated extensions 36 and 38 extend laterally in opposite directions from adjusting plate 30 to provide guides for the adjusting mechanism. More particularly, a vertical passageway 40 is drilled through extension 36 to receive in slidable insertion therein spring guide pin 42.
  • the guide pin is provided wtih an enlarged head 44 held against an integrally fabricated fixed abutment 46 of housing structure ing the 3 18 by means of a coiled spring 48 through which the pin is passed before being axially inserted in passageway 40.
  • the other lateral extension 38 is provided with an adjusting screw 50 threaded therethrough to contact a 7 Referring specifically to FIG.
  • twist rollers 58 having tubular bearing inserts 60 are spaced to provide a twist passageway 62 and are rotatably mounted on roller shafts 64 extending transversely between side members 54.
  • Each roller shaft is provided at one end with a recess designed to cooperate with an exterior keeper plate 68 which hold- 28 by means of a retaining screw 70.
  • the head containing spaced rotatable twist rollers 58 is itself rotatable with tubular barrel member 26 which extends through cylindrical passageway 24 in housing structure 18 to terminate at its other end in an adjusting plate 30.
  • the combination of head assembly 28, barrel member 26, and adjusting plate 30 may be rotated as a unit about an axis corresponding to the pass line.
  • the head assembly 28 and barrel member 26 may be rotated freely by hand without disturbing the relative position 'of adjusting plate 30.
  • rough hand adjustmentspredetermined in accordance with the aforementioned mathematical expression can be made to the head assembly prior to installation of the unit in the mill.
  • retaining bolts 32 are tightened and adjusting screw 50 utilized to subsequently perform fine adjustments during operation of the mill.
  • Rotation of adjusting screw in a clockwise direction will result in a force being exerted against abutment 52 which tends to rotate the adjusting plate 30, tubular barrel member 26 and its associated head assembly 28 in a counterclockwise direction as spring member 48 is compressed between abutment 46 and extension 36.
  • counterclockwise i rotation of adjusting screw 50 will result in opposite rotation of adjustingplate30 as spring member 48 is expanded to maintain the end of adjusting screw 50 in contact with abutment 52.
  • head assembly 28 is further provided with a tubular extension 72 having a g cylindrical passageway 74 extending axially therethrough.
  • a stripper guide 76 shaped to be inserted between work rolls 77 is provided with an integrally fabricated reduced diameter tubular extension 78 designed to be axially inserted within cylindrical passageway 74 when attaching the stripper guide to head assembly 28.
  • Tubular extension 78 is further provided with a peripheral groove 80 having positioned therein a compressible'O' -ring :82.
  • the stripper guide is installed by simply positioning O-ring 82 in peripheral groove 80 and thereafter axially inserting tubular extension 78 into passageway 74 7 until opposed integrally fabricated shoulders 83 contact the forward face of cylindrical extension 72 as at 85.
  • tubular extension '78 of stripper guide 76 is free to rotate within passageway 74. Consequently, it can be seen that once the stripper assembly 28 guide 76 is positioned between work rolls 77 in frictional engagement therewith, the head assembly 28 may then be rotatably adjusted about the pass line as previously discussed when making adjustment to the twist rollers 58 without the necessity of first having to disturb the stripper guide from its operative position.
  • the stripper guide When the stripper guide is in near frictional contact with the work rollsas opposed to actual frictional contact as illustrated in the drawings, it will rotate slightly with the head assembly as adjusting screw 50 is turned. However, this slight rotation is unimportant in view of the fact that the stripper guide has no pretwist function.
  • Stripper guide 76 is further provided with an axialpassageway 84 extending therethrough from roll pass 86 shafts in place during operation of the milLKeeper plate 68 is in turn fixed to the side of the head assembly formed by grooves 88 in the work rolls to the twist pas-- sageway 62 formed between twist rollers 58.
  • oncominggstock 90 immediately enters the enlarged mouth *89 of guide passageway 84 and is prevented from adhering to the surfaces of the work rolls 7-7 by the mating contact surfaces 92 of the stripper guide in frictional contact therewith.
  • the stock is then guided by guide passageway 84 between twist rollers 58 where it is contacted and twisted as it passes; through twist passageway 62.
  • retaining bolts 112 threaded through a plate member 114 attached to an overlying transverse stationary beam 116 are backed on until they come into contact with the upper surface of housing structure 18.
  • the retaining bolts 112 hold the twist units in place during normal operation of the mill.
  • the frictional contact between retaining bolts 112 and the upper surface of housing structure 18 will be overcome and the twist unit allowed to slide to the rear until key 20 is disengaged from keyway 22. In this manner, serious damage to the twist unit is avoided.
  • retaining bolts 32 are first loosened to permit independent rotation of combined head assembly 28 and barrel member 26 as a unit. Assuming that the stock is to be turned 90 prior to its entrance into the next succeeding stand, head assembly 28 is then manually adjusted to the twist angle computed by use or" the mathematical expression:
  • stripper guide 76 is held stationary, thus allowing cylindrical extension 72 to roate relative to reduced diameter tubular extension 78. Thereafter, retaining bolts 32 are tightened and the unit installed.
  • final adjustments to head assembly 28 can be made by simply turning adjusting screw 50.
  • any major angular adjustment of the twist rollers is performed prior to installation of the unit in the mill.
  • Final adjustments are made while the mill is in operation by the operation of a single readily accessible adjusting screw.
  • the stripper guide When the stripper guide becomes worn, its replacement is also facilitated by the present construction. More particularly, when removing a stripper guide it is simply grasped by an operator and pulled from the passageway 74 extending axially through extension 72. Another strip per guide is then axially inserted in a similar manner With a minimum loss of time.
  • the means for rotatably adjusting the core element relative to said support structure is comprised of an end plate secured to the other end of said core element, said plate having an adjustment screw threaded therethrough and spring means carried by said plate member for urging one end of said adjustment screw into contact with said support structure, whereby rotation of said adjustment screw will result in rotative adjustment of said core element within said support structure.
  • the guide apparatus as claimed in claim 6 further provided with means for continuously cooling and lubrieating said twist rollers regardless of the angular adjustment of said core element relative to said support structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US389324A 1964-08-13 1964-08-13 Roller delivery twist unit Expired - Lifetime US3330143A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1050949D GB1050949A (enrdf_load_stackoverflow) 1964-08-13
US389324A US3330143A (en) 1964-08-13 1964-08-13 Roller delivery twist unit
FR28134A FR1442966A (fr) 1964-08-13 1965-08-12 Dispositif associé à un laminoir et faisant serpenter la matière à la sortie de la cage
DE19651427972 DE1427972A1 (de) 1964-08-13 1965-08-13 Rollendrallfuehrung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US389324A US3330143A (en) 1964-08-13 1964-08-13 Roller delivery twist unit

Publications (1)

Publication Number Publication Date
US3330143A true US3330143A (en) 1967-07-11

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ID=23537780

Family Applications (1)

Application Number Title Priority Date Filing Date
US389324A Expired - Lifetime US3330143A (en) 1964-08-13 1964-08-13 Roller delivery twist unit

Country Status (3)

Country Link
US (1) US3330143A (enrdf_load_stackoverflow)
DE (1) DE1427972A1 (enrdf_load_stackoverflow)
GB (1) GB1050949A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661006A (en) * 1969-09-18 1972-05-09 C F & I Steel Corp Rolling mill guide
US3664074A (en) * 1970-04-10 1972-05-23 Armco Steel Corp Roller entry guide for rod mill
US3699795A (en) * 1970-12-07 1972-10-24 United States Steel Corp Work twister for rolling mill
US5404740A (en) * 1993-01-28 1995-04-11 Kotobuki Sangyo Kabushiki Kaisha High-rigid type guiding method for steel materials to be rolled
CN108580564A (zh) * 2018-04-07 2018-09-28 新疆八钢铁股份有限公司 高压水浮动润滑式滚动导卫

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016237B1 (en) * 1979-03-21 1984-03-14 Kotobuki Sangyo Kabushiki Kaisha Twist roller guide device for rolling mill use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US947305A (en) * 1908-12-07 1910-01-25 Isaac Lamont Hughes Apparatus for rolling metal bars.
US1157378A (en) * 1913-05-31 1915-10-19 Harry R Geer Metal-rolling apparatus.
US1680105A (en) * 1924-09-29 1928-08-07 United Eng Foundry Co Repeater for rolling mills
US2023913A (en) * 1929-12-05 1935-12-10 Farrel Birmingham Co Inc Rod mill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US947305A (en) * 1908-12-07 1910-01-25 Isaac Lamont Hughes Apparatus for rolling metal bars.
US1157378A (en) * 1913-05-31 1915-10-19 Harry R Geer Metal-rolling apparatus.
US1680105A (en) * 1924-09-29 1928-08-07 United Eng Foundry Co Repeater for rolling mills
US2023913A (en) * 1929-12-05 1935-12-10 Farrel Birmingham Co Inc Rod mill

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661006A (en) * 1969-09-18 1972-05-09 C F & I Steel Corp Rolling mill guide
US3664074A (en) * 1970-04-10 1972-05-23 Armco Steel Corp Roller entry guide for rod mill
US3699795A (en) * 1970-12-07 1972-10-24 United States Steel Corp Work twister for rolling mill
US5404740A (en) * 1993-01-28 1995-04-11 Kotobuki Sangyo Kabushiki Kaisha High-rigid type guiding method for steel materials to be rolled
CN108580564A (zh) * 2018-04-07 2018-09-28 新疆八钢铁股份有限公司 高压水浮动润滑式滚动导卫

Also Published As

Publication number Publication date
GB1050949A (enrdf_load_stackoverflow)
DE1427972A1 (de) 1969-04-30

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