EP0013671A1 - Dispositif de centrage et d'ajustage pour régler l'écartement entre les galets de guidage dans un dispositif de guidage de laminoir - Google Patents

Dispositif de centrage et d'ajustage pour régler l'écartement entre les galets de guidage dans un dispositif de guidage de laminoir Download PDF

Info

Publication number
EP0013671A1
EP0013671A1 EP19790100206 EP79100206A EP0013671A1 EP 0013671 A1 EP0013671 A1 EP 0013671A1 EP 19790100206 EP19790100206 EP 19790100206 EP 79100206 A EP79100206 A EP 79100206A EP 0013671 A1 EP0013671 A1 EP 0013671A1
Authority
EP
European Patent Office
Prior art keywords
hand screw
guide rollers
sub
gear
right hand
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.)
Granted
Application number
EP19790100206
Other languages
German (de)
English (en)
Other versions
EP0013671B1 (fr
Inventor
Hiroaki Shimada
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.)
Kotobuki Sangyo KK
Original Assignee
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 Kotobuki Sangyo KK filed Critical Kotobuki Sangyo KK
Priority to DE7979100206T priority Critical patent/DE2965336D1/de
Priority to EP19790100206 priority patent/EP0013671B1/fr
Publication of EP0013671A1 publication Critical patent/EP0013671A1/fr
Application granted granted Critical
Publication of EP0013671B1 publication Critical patent/EP0013671B1/fr
Priority to SG8585A priority patent/SG8585G/en
Priority to HK61885A priority patent/HK61885A/xx
Expired 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

Definitions

  • the invention relates to an automatic centering and cramping adjusting mechanism for adjusting the clearance between a pair of sub-guide rollers by swinging each of said rollers at each side of the axis of feed of the material to be rolled, for use in a material guiding apparatus of a rolling mill.
  • a guiding roller apparatus at the inlet side of the roll.
  • One of the typical guiding roller devices has a pair of main guide rollers and a pair of sub-guide rollers. In such a guiding roller device, it is necessary to adjust the cramping condition of the sub-guide rollers in accordance with the cramping condition of the main guide rollers, when the cramping condition of the main guide rollers is changed and adjusted.
  • the invention relates to an improvement in the pair of sub-guide rollers.
  • the guiding roller apparatus for guiding a blank steel W to be rolled to the rolls R, R' of a roll stand has a pair of roller holders 2, 3 which are pivoted by pins 6, 7 so as to be swung around these pins such that they converge at points upstream or downstream from the pins as viewed in the direction of the material flow.
  • These pair of roller holders 2, 3 having pairs of guide rollers such as a pair of main guide rollers 4, 5 and a pair of sub-guide rollers 41, 51.
  • the guide rollers of each pair cooperate with each other to cramp the material W therebetween.
  • the cramping force, the roller clearance and other conditions have to be adjusted to provide an effective and reasonable cramping and guiding, so as to satisfy various requirements such as prevention of falling down of the blank material, linear guiding of the blank material etc.
  • the relation between the main guide rollers 4, 5 and the sub-guide rollers 41, 51 in the conventional apparatus is such that, when the distance between the peripheral surfacesof the main guide rollers 4, 5 contacting the material W is l, the roller holders 2, 3 swingable around the pins 6, 7 to converge at points upstream or downstream from the pins is swung as illustrated to converge at the opposite side of the rollers to the pins 6, 7, forming therebetween an anglc e.
  • the distance t' between the peripheral surfaces of the sub-guide rollers is so large that the sub-guide rollers cannot make a contact with the material W. Consequently, the contact of the guide rollers is made uneven, and the satisfactory cramping by the plurality of pairs of the guide rollers cannot be performed.
  • a further development of the invention resides in the fact'that manually rotatable shafts carrying said left hand screw worm gear and said right hand screw worm gear respectively are axially aligned with each other, and that a dog clutch adapted to allow only sliding movement is attached to one of said shafts, while a dog pin for engagement with said dog clutch is attached to the other shaft, whereby said left hand screw worm gear and said right hand screw worm gear are rotated coaxially.
  • the invention provides a mechanism in which the sub-guide rollers are mounted on respective roller holders by means of eccentric shafts the rotation of which is controlled by a single touch of hand, so as to change the roller clearance of the sub-guide rollers, so that the sub-guide rollers are automatically centered with respect to the main guide rollers, thereby to ensure a complete and safe cramping of the material steel,
  • the sub-guide rollers 41, 51 are swung to and from the guiding axis of the blank steel material W, simultaneously, so that the roller clearance of the sub-guide rollers is changed from to l' by a single action.
  • a pair of roller holders 2, 3 are installed in a symmetric manner from the outside of a guide box 1. These roller holders 2, 3 rotatably carry at their front portions respective one of a pair of main guide rollers 4, 5 and respective one of sub- guide rollers 41, 51.
  • the roller holders 2, 3 are swing- ably supported by the guide box 1 through pivot pins 6, 7.
  • An entry guide 20 provided at the center of the guide box 1 is adapted to make a preliminary guide of the steel material W to be rolled down to the positions of the main guide rollers 4, 5 and sub-guide rollers 41, 51.
  • the material W is cramped by the main guide rollers 4, 5 and guided to the center of the mold groove C on the peripheral surface of the rolls R, R' (see fig.
  • the cramping force is adjusted by moving the loading points W1, W2 (see fig. 2) toward and away from each other.
  • the sub-guide rollers 41, 51 have therein roller bearings 55, and are carried rotatably by eccentric shaft pins 26 which are unitary with vertical support shafts 25 ' adjustably and rotatably mounted on respective roller holders 2, 3.
  • each of the support shafts 25 has at its upper portion a flange portion 250 and a portion 251 of reduced diameter.
  • the boss of a left hand screw gear 27 (or right hand screw gear 28) is secured to the portion 251 of reduced diameter by means of a key 31, and is fixed by a fixing screw 33, for a unitary rotation with the vertical support shaft 25.
  • the screw gear 27 (28) has an extended boss 270 which rotatably fits a gear frame 11 (12) which is in contact with the upper surface of the flange portion 250.
  • the left and right hand screw gear 27, 28 are prevented from moving axially by key bolts 32 which are driven through the gear frames 11 (12) to project into a circumferential key groove 35 of the extended boss 270.
  • the first gear frame 11 is attached to the first roller holder 2, while the second gear frame 12 is attached to the second roller holder 3. As shown in fig. 4, both gear frames 11, 12 are disposed along the same line.
  • a spindle 13 and a shaft 14 are adapted to be engaged by and disengaged from each other by means of a dog clutch 15.
  • the spindle 13 and the shaft 14 carry, respectively, a left hand screw worm gear (pinion) 29 and a right hand screw worm gear (pinion) 30, respectively.
  • These worm gears are fixed by means of spring-equipped pins 36, 36.
  • the left hand screw worm gear 29 and the righ hand screw. worm gear 30 engage the left hand screw gear 27 and the right hand screw gear 28, respectively.
  • the inner end of the spindle 13 is formed into a tube 130 adapted for slidably receiving the inner end of the shaft 140.
  • the outer peripheral surface has a key groove extending along the length of the spindle 13 adapted to slidably receive the end of a key bolt 16 which is screwed into the dog clutch 15, thereby to prevent the relative rotation.
  • the engagement of the key bold 16 and the key groove 18 on the other hand allows the longitudinal sliding of the dog clutch 15.
  • a dog pin 19 formed on the shaft 14 comes into engagement with one of a plurality of retaining recesses 150 formed in the end of the dog clutch 15, so that the spindle 13 and the shaft 14 are made rotatable together with each other.
  • a reference numeral 40 denotes a grease nipple for the lubrication of the sliding parts.
  • the eccentric shaft pins 26 of the vertical support shafts 25 of respective roller holders 2, 3 have required eccentricities. These eccen- utilized in adjusting the roller clearance tricities are utilized in adjusting the roller clearance l' of the sub-guide rollers 41, 51.
  • the eccentric positions of the eccentric shaft pins 26 are indicated on scales provided on the upper surfaces of the left hand screw gear 27 and the right screw gear 28, as at "R” on the gear 28 (see fig. 4). '
  • the dog pin 19 and the dog clutch 15 are brought into engagement with each other, so that they may rotate unitarily with each other.
  • a wrench or a handle are attached to the polygonal head of the shaft 14 or the spindle 13.
  • the combination of the left hand screw worm gear 29 and the associated left hand screw gear 27 and the combination of the right hand screw worm gear 30 and the associated right hand screw gear 28 are rotated in the opposite directions.
  • the spindle 13 (shaft 14) is rotated clockwise as viewed in figs. 1 and 4
  • the left hand screw gear 27 is rotated counter-clockwise
  • the right hand screw gear 28 rotates clockwise.
  • the gears 27 and 28 have a same number of gear teeth.
  • reference numerals 8, 9 denote a pair of pivot shafts screwed into the first and the second roller holders 2, 3 in opposite directions.
  • the ends of the pivot shafts are supported horizontally by the extension 10, 10 of the guide box, and contact both short axis ends axially movable in supporting sleeves 45, 46, so as to constitute the points P1, P2 of force by which the roller holders 2, 3 are born by the pivot points 6, 7.
  • a reference numeral 60 denotes a handle which is rockable back and forth (to the right and left in fig. 1). By re- ciprocatorily rotating a sleeve 42 unitary with the handle, the points P1, P2 of force are adjusted inwardly and outwardly by a suitable mechanism not shown.
  • a coiled tension spring 49 stretched between the rear ends of the roller holders 2, 3 is retained by the roller holders by means of bolts 47, 48 screwed into both ends thereof, and is adapted to bias the roller holders 2, 3 such that the opposing surfaces of the rear ends of these roller holders 2., 3 are always pressed against respective points P1, P2 of force.
  • the invention comprises a mechanism for automatically centering sub-guide rollers 41, 51 and adjusting the clearance between the sub-guide rollers 41, 51 thereby to adjust the cramping condition of the material W to be rolled, for use in the material guiding, apparatus of a rolling mill for rolling a steel blank into wires, bars etc., the material guiding apparatus being of a type having a pair of roller holders 2, 3 each of which carry a corresponding one of a pair of main guide rollers 4, 5 and a pair of sub-guide rollers 41, 51.
  • Each of the sub-guide rollers 41, 51 is rotatably carried by a corresponding one of a pair of eccentric shaft pins 26 unitary with each of a pair of support shafts 25 supported by a corresponding roller holder 2, 3.
  • a right hand screw gear 27 and a left hand screw gear 28 are attached to a respective one of the support shafts 25.
  • a manually operable left hand screw worm gear 29 and a right hand screw worm gear 30 which is also manually operable are made to engage with the gears 27, 28, respectively.
  • the worm gears 29, 30 are carried by respective shafts 13, 14 which are brought into engagement for unitary rotation with each other,as necessitated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP19790100206 1979-01-24 1979-01-24 Dispositif de centrage et d'ajustage pour régler l'écartement entre les galets de guidage dans un dispositif de guidage de laminoir Expired EP0013671B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE7979100206T DE2965336D1 (en) 1979-01-24 1979-01-24 A centering and cramping adjusting mechanism for adjusting the clearance between sub-guide rollers, for use in a material guiding apparatus of a rolling mill
EP19790100206 EP0013671B1 (fr) 1979-01-24 1979-01-24 Dispositif de centrage et d'ajustage pour régler l'écartement entre les galets de guidage dans un dispositif de guidage de laminoir
SG8585A SG8585G (en) 1979-01-24 1985-02-01 A centering and cramping adjusting mechanism for adjusting the clearance between sub-guide rollers,for use in a material guiding apparatus of a rolling mill
HK61885A HK61885A (en) 1979-01-24 1985-08-15 A centering and cramping adjusting mechanism for adjusting the clearance between sub-guide rollers,for use in a material guiding apparatus of a rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19790100206 EP0013671B1 (fr) 1979-01-24 1979-01-24 Dispositif de centrage et d'ajustage pour régler l'écartement entre les galets de guidage dans un dispositif de guidage de laminoir

Publications (2)

Publication Number Publication Date
EP0013671A1 true EP0013671A1 (fr) 1980-08-06
EP0013671B1 EP0013671B1 (fr) 1983-05-11

Family

ID=8186068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790100206 Expired EP0013671B1 (fr) 1979-01-24 1979-01-24 Dispositif de centrage et d'ajustage pour régler l'écartement entre les galets de guidage dans un dispositif de guidage de laminoir

Country Status (4)

Country Link
EP (1) EP0013671B1 (fr)
DE (1) DE2965336D1 (fr)
HK (1) HK61885A (fr)
SG (1) SG8585G (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143523A1 (fr) * 1983-09-19 1985-06-05 Fabris Industrial Manufacturing Limited Dispositif à rouleaux pour guide d'entrée
EP0181707A1 (fr) * 1984-11-02 1986-05-21 Kotobuki Sangyo Kabushiki Kaisha Appareil de finissage avec dispositif de centrage de rouleau
EP0199402A2 (fr) * 1985-04-22 1986-10-29 DANIELI & C. OFFICINE MECCANICHE S.p.A. Dispositif pour séparer un produit laminé
EP0202377A1 (fr) * 1985-05-20 1986-11-26 Kotobuki Sangyo Kabushiki Kaisha Dispositif de guidage dans un laminoir
US4700875A (en) * 1984-09-13 1987-10-20 Mario Fabris Roller entry guide
EP0767013A1 (fr) * 1995-10-02 1997-04-09 Shinhokoku Steel Corporation Système pour guider des matières à laminer
CN109731927A (zh) * 2019-01-23 2019-05-10 合肥市百胜科技发展股份有限公司 一种导卫装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE664743C (de) * 1936-11-17 1938-09-08 Hans Cramer Dr Ing Fuehrungsvorrichtung fuer Walzstaebe und Walzbaender
GB935259A (en) * 1960-02-25 1963-08-28 Schloemann Ag Improvements in roller guides for rolling mills
GB992156A (en) * 1962-08-15 1965-05-19 Hille Engineering Company Ltd Improvements in or relating to means for guiding a rod or bar during a rolling operation
DE1602224A1 (de) * 1967-12-23 1970-05-21 Gerd Wolff Maschinenfabrik Rollenkasten
DE2023728A1 (de) * 1969-05-19 1970-11-26 General Cable Corp., New York, N.Y. (V.St.A.) Feineinstellbare Führung für Walzwerke
US3690139A (en) * 1969-11-13 1972-09-12 Francis P Brennan Edge conditioning mechanism
DE2717884A1 (de) * 1977-04-19 1978-10-26 Stiftelsen Metallurg Forsk Rollenanordnung fuer walz- oder streckwerke

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE664743C (de) * 1936-11-17 1938-09-08 Hans Cramer Dr Ing Fuehrungsvorrichtung fuer Walzstaebe und Walzbaender
GB935259A (en) * 1960-02-25 1963-08-28 Schloemann Ag Improvements in roller guides for rolling mills
GB992156A (en) * 1962-08-15 1965-05-19 Hille Engineering Company Ltd Improvements in or relating to means for guiding a rod or bar during a rolling operation
DE1602224A1 (de) * 1967-12-23 1970-05-21 Gerd Wolff Maschinenfabrik Rollenkasten
DE2023728A1 (de) * 1969-05-19 1970-11-26 General Cable Corp., New York, N.Y. (V.St.A.) Feineinstellbare Führung für Walzwerke
US3690139A (en) * 1969-11-13 1972-09-12 Francis P Brennan Edge conditioning mechanism
DE2717884A1 (de) * 1977-04-19 1978-10-26 Stiftelsen Metallurg Forsk Rollenanordnung fuer walz- oder streckwerke

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143523A1 (fr) * 1983-09-19 1985-06-05 Fabris Industrial Manufacturing Limited Dispositif à rouleaux pour guide d'entrée
US4700875A (en) * 1984-09-13 1987-10-20 Mario Fabris Roller entry guide
EP0181707A1 (fr) * 1984-11-02 1986-05-21 Kotobuki Sangyo Kabushiki Kaisha Appareil de finissage avec dispositif de centrage de rouleau
EP0199402A2 (fr) * 1985-04-22 1986-10-29 DANIELI & C. OFFICINE MECCANICHE S.p.A. Dispositif pour séparer un produit laminé
EP0199402A3 (en) * 1985-04-22 1987-04-01 Danieli & C. Officine Meccaniche S.P.A. Box to separate rolled stock
EP0202377A1 (fr) * 1985-05-20 1986-11-26 Kotobuki Sangyo Kabushiki Kaisha Dispositif de guidage dans un laminoir
EP0767013A1 (fr) * 1995-10-02 1997-04-09 Shinhokoku Steel Corporation Système pour guider des matières à laminer
CN109731927A (zh) * 2019-01-23 2019-05-10 合肥市百胜科技发展股份有限公司 一种导卫装置

Also Published As

Publication number Publication date
DE2965336D1 (en) 1983-06-16
SG8585G (en) 1985-11-15
EP0013671B1 (fr) 1983-05-11
HK61885A (en) 1985-08-23

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