EP0181707A1 - Nachwalzwerk mit Rollenanstellungsvorrichtung - Google Patents

Nachwalzwerk mit Rollenanstellungsvorrichtung Download PDF

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Publication number
EP0181707A1
EP0181707A1 EP85307439A EP85307439A EP0181707A1 EP 0181707 A1 EP0181707 A1 EP 0181707A1 EP 85307439 A EP85307439 A EP 85307439A EP 85307439 A EP85307439 A EP 85307439A EP 0181707 A1 EP0181707 A1 EP 0181707A1
Authority
EP
European Patent Office
Prior art keywords
rollers
shafts
skinpass
pair
worm
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.)
Withdrawn
Application number
EP85307439A
Other languages
English (en)
French (fr)
Inventor
Toshihiro Shin Nippon Seitetsu K.K. Oka
Tetsuya Shin Nippon Seitetsu K.K. Oba
Makoto Kotobuki Sangyo K.K. Endo
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.)
Nippon Steel Corp
Kotobuki Sangyo KK
Original Assignee
Nippon Steel Corp
Kotobuki Sangyo KK
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 Nippon Steel Corp, Kotobuki Sangyo KK filed Critical Nippon Steel Corp
Publication of EP0181707A1 publication Critical patent/EP0181707A1/de
Withdrawn legal-status Critical Current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
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • B21B39/165—Guides or guide rollers for rods, bars, rounds, tubes ; Aligning guides
    • 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
    • B21B31/16—Adjusting or positioning rolls

Definitions

  • This invention relates to a skinpass apparatus having an improved roller centering adjustment device.
  • a skinpass apparatus is normally used in the final finish line for rolling wire rods or steel bars.
  • Existing apparatus usually employs siding rollers which impart a circular shape to poorly-rounded semi-finished products that have issued from the surface rollers of a rolling mill, thereby to impart required final shaping to the wire product or steel bars.
  • siding rollers which impart a circular shape to poorly-rounded semi-finished products that have issued from the surface rollers of a rolling mill, thereby to impart required final shaping to the wire product or steel bars.
  • the devices incorporated into the siding rollers are of a comparatively coarse adjusting type.
  • the adjusting devices used up to now cannot achieve final product with a dimensional accuracy of less than 5/100 mm. They are limited only to form products with an axial ratio of approximately 1.02-1.25, as in an aspect ratio relative to the product.
  • the present invention has therefore been developed with a view to overcome the drawbacks of conventional adjusting devices in skinpass apparatus, and to make it possible to provide a finished product with a high precision (out of) roundness as required.
  • a skinpass apparatus comprising a frame, a pair of supporting shafts pivotally mounted in the frame, a pair of integral shafts each projecting eccentrically from a respective one of the supporting shafts, a pair of rollers each mounted rotatably on a respective one of said eccentric shafts and arranged to define therebetween a pass line for product to be treated by the rollers, and adjustment means for laterally adjusting the position of the rollers relative to the pass line:
  • a skinpass apparatus which is arranged to impart final treatment to semi-finished products which issue from finish rolls 3 of a rolling mill for treating product, such as wire rods or steel bars.
  • the skinpass apparatus has a base 1, on which a frame 2 is securely mounted. Wire rods or steel bars are fed through the rolls 3, and enter the skinpass apparatus via a delivery guide 4, receive final treatment by rollers 8 mounted in the skinpass apparatus, and then issue from the apparatus via a sleeve guide 5 mounted on the frame 2, following a pass line 1 and are then delivered as finished products.
  • the frame 2 is provided on both sides of the pass line 1 with a pair of supporting shafts 6 for the rollers 8. Projecting from each supporting shaft 6 there is integrally provided a respective eccentric shaft 7, which is spaced eccentrically by distance e from the axis of rotation m of the supporting shaft 6.
  • the eccentric spacings e of the eccentric shafts 7 are symmetrical relative to the pass line 1, and the eccentric shafts 7 pivotally support the rollers 8 via bearings (not shown).
  • the rollers 8 are arranged symmetrically about the pass line 1, and adjustment means is provided for laterally adjusting the position of the rollers 8 relative to each other and to the pass line 1.
  • the adjustment means comprises a worm drive arrangement (9a,9b,10a,10b) which is coupled indirectly with the eccentric shafts 7, and which is operable to rotate the latter simultaneously at a reduced speed in relatively opposite direction in order to displace the rollers 8 by equal amounts and in opposite directions relative to the pass line 1.
  • the worm drive arrangement is a two stage reduction gear arrangement, though a single stage reduction gear, or more than two stage reduction gear arrangement may be provided if desired.
  • the adjustment means comprises a two-stage worm drive arrangement, the first stage being shown generally by reference 9 and the second stage being shown generally by reference 10.
  • the first stage comprises a worm 9a which is mounted securely on one end of a manually rotatable shaft 12, and a worm wheel 9b meshing with the worm 9a.
  • the worm wheel 9b is integrally formed with, or otherwise firmly secured to a mid-region of a common rotary output shaft 13.
  • the shaft 12, which forms an input shaft, can be rotated in either direction by operation of a hand wheel 11.
  • the second stage 10 of the worm drive gear reduction arrangement comprises a pair of oppositely handed screw worms 10a, one of which is mounted near one end of the output shaft 13, and the other of which is mounted near the opposite end of output shaft 13, as shown in Figure 4.
  • the second stage 10 is the final stage of speed reduction from input shaft 12 to the eccentric shafts 7, though in a multi-stage gear reduction the "second" stage will be merely a "further” stage).
  • the second stage also includes a pair of oppositely handed worm wheels 10b which each mesh with a respective one of the worms 10a, and which are fixedly mounted each on one end of a respective one of the supporting shafts 6.
  • the input shaft 12 and the common output shaft 13 are rotatably mounted in the frame 2 by bearing members 14 and 15 respectively. They may, of course, be supported on any frame or housing portion secured to the frame 2. Further, as indicated above, the multi-stage speed reduction gear of the illustrated embodiment may be added to, or subtracted from to provide single stage speed reduction, or three or more speed reduction.
  • a pair of threaded adjusters 16 are associated with each roller 8, and serve to control up and down adjustment of the roller.
  • an upper one of the threaded adjusters 16 engages with the upper end of the respective supporting shaft 6, whereas the lower adjuster 16 engages with the lower end of the shaft 6.
  • each eccentric cylinder 6a is fixed on a lower end of the eccentric shaft 7 which is integrally formed with the support shaft 6.
  • a thrust disc 18 serves to transmit adjustment movement from the lower threaded adjuster 16 to the support shaft 6, and the opposite end of the support shaft also has its position determined by a thrust disc and associated threaded adjuster 16.
  • a pair of dust seals 20 are also provided at the upper and lower ends of the support shaft 6.
  • the central part of the hand wheel 11 incorporates an indicator dial 19 of the clock type.
  • the pointer of the dial provides a reading of a distance F (see Figure 3) between the surfaces of the rollers 8, or the centre to centre distance as corresponding with the rotary adjustment of hand wheel 11.
  • the hand wheel 11 is rotated clockwise or anticlockwise manually through a required angle.
  • the first stage (9) of the speed reduction worm drive arrangement is then rotated, in that input shaft 12 drives the worm 9a which, in turn, rotates the worm wheel 9b.
  • the rotary output shaft 13 is then rotated by the worm wheel 9b, thereby providing a first stage of speed reduction from input shaft 12 to output shaft 13.
  • the second stage (10) of the speed reduction is operated, in that output shaft 13 drives the oppositely handed screw worms 10a (mounted one at each end thereof), and these in turn drive the respective oppositely handed worm wheels lOb, thereby providing a further speed reduction from the output shaft 13 to each supporting shaft 6.
  • the eccentric shafts 7 are similarly angularly adjusted by a small increment with the respective supporting shafts 6, and this causes corresponding small lateral displacement of the rollers 8, in that shafts 7 are eccentric shafts provided on the supporting shafts 6. This therefore provides a very accurate small incremental adjustment of lateral positioning of the rollers 8, in order to vary the distance F between the surfaces of the rollers, or the centre to centre distances.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Massaging Devices (AREA)
  • Metal Rolling (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP85307439A 1984-11-02 1985-10-16 Nachwalzwerk mit Rollenanstellungsvorrichtung Withdrawn EP0181707A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP167066/84U 1984-11-02
JP1984167066U JPS6182709U (de) 1984-11-02 1984-11-02

Publications (1)

Publication Number Publication Date
EP0181707A1 true EP0181707A1 (de) 1986-05-21

Family

ID=15842770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85307439A Withdrawn EP0181707A1 (de) 1984-11-02 1985-10-16 Nachwalzwerk mit Rollenanstellungsvorrichtung

Country Status (3)

Country Link
EP (1) EP0181707A1 (de)
JP (1) JPS6182709U (de)
KR (1) KR860003858A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5623202B2 (ja) * 2010-09-07 2014-11-12 寿産業株式会社 ローラガイドのローラ間隔制御装置
JP5623201B2 (ja) * 2010-09-07 2014-11-12 寿産業株式会社 圧延機におけるガイドの位置制御装置
KR101510284B1 (ko) * 2013-10-31 2015-04-09 주식회사 포스코 압연롤 간격 조절장치 및 조절방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010037B (de) * 1955-04-09 1957-06-13 Demag Ag Leitvorrichtung fuer Walzgut
EP0013671A1 (de) * 1979-01-24 1980-08-06 Kotobuki Sangyo Kabushiki Kaisha Zentrier- und Regelvorrichtung zur Regelung des Abstandes zwischen den Führungsrollen einer Materialführung bei Walzwerken
EP0013672A1 (de) * 1979-01-24 1980-08-06 Kotobuki Sangyo Kabushiki Kaisha Vorrichtung zur Einstellung der Führungsrollen eines Walzwerkführungskastens

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5527411A (en) * 1978-08-14 1980-02-27 Sumitomo Metal Ind Ltd Bar steel rolling device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010037B (de) * 1955-04-09 1957-06-13 Demag Ag Leitvorrichtung fuer Walzgut
EP0013671A1 (de) * 1979-01-24 1980-08-06 Kotobuki Sangyo Kabushiki Kaisha Zentrier- und Regelvorrichtung zur Regelung des Abstandes zwischen den Führungsrollen einer Materialführung bei Walzwerken
EP0013672A1 (de) * 1979-01-24 1980-08-06 Kotobuki Sangyo Kabushiki Kaisha Vorrichtung zur Einstellung der Führungsrollen eines Walzwerkführungskastens

Also Published As

Publication number Publication date
JPS6182709U (de) 1986-05-31
KR860003858A (ko) 1986-06-13

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Inventor name: ENDO, MAKOTOKOTOBUKI SANGYO K.K.

Inventor name: OKA, TOSHIHIROSHIN NIPPON SEITETSU K.K.

Inventor name: OBA, TETSUYASHIN NIPPON SEITETSU K.K.