EP0021995B1 - Dispositif d'entrainement de bande - Google Patents

Dispositif d'entrainement de bande Download PDF

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Publication number
EP0021995B1
EP0021995B1 EP19800400899 EP80400899A EP0021995B1 EP 0021995 B1 EP0021995 B1 EP 0021995B1 EP 19800400899 EP19800400899 EP 19800400899 EP 80400899 A EP80400899 A EP 80400899A EP 0021995 B1 EP0021995 B1 EP 0021995B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
ring
chamber
bearings
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
Application number
EP19800400899
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0021995A1 (fr
Inventor
André Quehen
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.)
Secim SA
Original Assignee
Secim SA
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 Secim SA filed Critical Secim SA
Publication of EP0021995A1 publication Critical patent/EP0021995A1/fr
Application granted granted Critical
Publication of EP0021995B1 publication Critical patent/EP0021995B1/fr
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
    • B21B39/006—Pinch roll sets
    • 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
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3408—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the lateral position of the material
    • B21C47/3425—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the lateral position of the material without lateral edge contact

Definitions

  • the present invention relates to a drive device, in particular of laminated metal strip.
  • This device is intended to be mounted next to a tape winder in a broadband rolling mill.
  • the tape runs between two parallel drive rollers. mounted in a cage.
  • the lower roller - whose diameter and weight are smaller than those of the upper roller - is fixedly mounted in the cage.
  • the upper roller is mounted at its ends in bearings which are guided vertically in the cage and are maneuvered by hydraulic cylinders. 'The upper post can be lifted when the belt is engaged so as to allow passage to the belt when the latter is directed towards a machine located downstream.
  • the downward movement of the upper roller is limited by stops against which the bearings can be applied.
  • the air gap between the rollers which is adjusted by means of the stops is slightly less than the thickness of the laminated strip when the strip is engaged.
  • the chocks of the upper cylinder are moved by driving members and the chocks of the lower cylinder rest on piston rods sliding in cylinders of cylinders.
  • the object of the invention is to provide a laminated strip drive device provided with actuators for operating the lower roller, the construction of which makes it possible to bring said roller to an intermediate position remote from the upper roller while waiting for the engagement of the band. In this waiting position the impact of engagement of the strip can be absorbed.
  • This drive device is provided with a displacement system of the upper roller which ensures a rapid stroke of this roller and which applies the bearings against stops so as to make up for part of the games by carrying out a prestressing.
  • the position of these stops is adjustable depending on the thickness of the laminated strip.
  • the device makes it possible, after engagement of the strip between the driving rollers, to adjust the pressure force on this strip, this adjustment being obtainable separately on each bearing mounted at the end of the lower roller. It makes it possible to use a constant and preset hydraulic pressure, when the rollers are in the standby position of the strip or when this strip is engaged between these rollers.
  • the device according to the invention is characterized in that it includes stops limiting the stroke of the bearings of the upper roller and that the jack has a ring which slides on the rod side in the cylinder under the action of hydraulic means making it possible to bring the ring to a low position where it limits upwards the stroke of the piston to an intermediate position so that the lower roller is separated from the upper roller before the engagement of the strip.
  • the hydraulic means associated with the ring consist of a hydraulic chamber formed in the cylinder above the ring which slides with sealing in said cylinder and on the rod which crosses with sealing said cylinder, this chamber being connected to a pipe. hydraulic fluid supply.
  • the device shown in Figure 1 is used to drive a metal strip 2 which has just been laminated and which will be wound. It comprises two lateral frames 3 which are arranged on either side of the metal strip 2. The latter passes between two driving rollers 4 and 5 whose axes 41 and 51 are horizontal. Bearings 42 and 52 are mounted respectively at the ends of the rollers 4 and 5. These bearings 42 and 52 are guided respectively by vertical slides 31 and 32 formed by lights of the side frames 3. Thus the rollers 4 and 5 can move relatively in a vertical plane. These driving rollers 4 and 5 are rotated, about the axes 41 and 51 respectively, using drive means which are not shown in the drawings.
  • the upper roller 5 can be moved vertically using motor means.
  • These drive means are constituted by double-acting hydraulic cylinders which are each associated with a bearing 52 of the upper roller.
  • Each of these jacks comprises a cylinder 61 which is fixed to the frame 3 and a piston 62 which is integral with a rod 63 hinged to an associated bearing 52.
  • the upper roller is in the high position when the winding device is not used and the belt is directed to a machine located downstream. It is in the low position during use of the winding device. In this low position, the bearings 52 of the upper roller are applied against stops 7 integral with the frame 3 and whose vertical position can be adjusted.
  • These adjustable stops can be of the wedge type or of the screw jack type or of any other equivalent type.
  • stops are adjusted by the operator so that the interval between the upper roller and the lower roller is slightly less than the thickness of the metal strip.
  • the bearings 52 of the upper roller are applied against the stops 7 with an application force which is greater than the maximum separation force generated between the two drive rollers so as to create a preload of the elements associated with. each level.
  • Each frame 3 is equipped with a hydraulic cylinder which is identified as a whole by the reference 1.
  • Each of these cylinders comprises a cylinder 11 resting on the frame 3 and a piston 12 which is integral with a rod 13 on which rests a bearing 42 of the lower roller.
  • the piston delimits, on the side of its lower face and the bottom of the cylinder, a lower chamber 14 which is supplied by a conduit 15. The pressurization of this chamber 14 moves the piston 12 vertically upwards.
  • Each cylinder is equipped with means capable of limiting the stroke of the piston upwards.
  • each cylinder comprises a ring 16 which is housed on the rod side in the cylinder so as to limit the stroke of the piston 12 upwards.
  • Each ring-16 can slide with sealing on the rod 13 which itself crosses with sealing the cylinder 11. Furthermore this ring 16 can slide with sealing in the bore of the cylinder 11 so as to form a sealed annular chamber 17 on the side from its upper side.
  • This annular chamber 17 which surrounds the rod 13 is connected to a hydraulic fluid supply pipe 18.
  • the ring 16 can be applied in the low position against a stop so as to define an intermediate position of the piston situated between the ends stroke of this piston. This stop is constituted by the bottom of the cylinder 11.
  • the ring 16 has a bell shape which allows it to abut against the bottom of the cylinder 11 when the chamber 17 is pressurized. Due to the bell shape of the ring 16, the diameter of the piston 12 is less than the diameter of the inner bore of the cylinder 11.
  • the piston 12 is free to move inside the ring 16, the upper flange of which can be applied against the shoulder formed by the pin and its rod.
  • the diameter of the lower chamber 14 is preferably less than the diameter of the piston 12.
  • the annular surface for applying pressure to the ring, on the side of the annular chamber 17, is greater than the surface for applying pressure to the underside of the piston, on the side of the chamber 14.
  • the hydraulic circuit represented by FIG. 2 comprises an electro-hydraulic distributor 20 which controls the supply of hydraulic liquid to the upper chamber 17 from the supply line 23.
  • a pressure regulator 21 the control of which is the arrangement of the operator modifies the pressure of the hydraulic fluid between the supply line 23 located upstream and the line 15 opening into the lower chamber 14.
  • a hydraulic damper 19 is connected to the line 15 located downstream of the pressure regulator 21.
  • the lower roller 4 Before the engagement of the metal strip between the rollers, the lower roller 4 is in the low and fixed position. This position is obtained by pressurizing the chambers 14 and 17. Because the pressures in these chambers are equal and that the application surface in the chamber 17 is greater than the application surface in the chamber 14, the ring 16 is in abutment against the lower bottom of the cylinder 11. Le. piston 12 is applied against the collar of the ring 16. The position of the upper roller 5 is adjusted by the stops 7.
  • the bearings 52 of the upper roller remain applied against the stops 7.
  • the rollers 4 and 5 are separated.
  • the bearings 42 of the lower roller can then move slightly downwards by pushing the piston 12 and by discharging the liquid from the chamber 14 (or by compressing a fluid in the chamber 14).
  • the mobile assembly formed by the lower roller and by its bearings is lighter than the mobile assembly formed by the upper roller and its bearings. As a result, the harmful effects due to the shocks caused by the introduction of the strip are relatively reduced.
  • the pressure in the annular chamber 17 is removed using the distributor 20. Therefore the ring 16 is free to move inside the cylinder 17 and it can therefore rise until it comes to abut against the upper bottom - rod side - of the cylinder.
  • the stroke of the piston 12 is therefore increased by the stroke of the ring 16.
  • the pressurization of the upper chamber 17 corresponds to an intermediate position where the stroke of the piston is limited upwards.
  • the elimination of the pressurization of the upper chamber 17 allows the movement of the piston over its entire stroke.
  • the lower roller 4 is applied to the metal strip with a force corresponding to the pressure prevailing in the chamber 14. This pres sion is constant but it is adjustable by the operator according to the dimensional characteristics of the strip 2. This adjustment of the pressure in the chamber 14 can be obtained using the pressure regulator 21.
  • the pressure can be adjusted differently between the cylinders located on the right and on the left side of the strip so as to compensate for any symmetry defects in the drive device or in the guide of the strip.
  • the annular chamber 17 is again pressurized by actuating the distributor 20 so as to return the lower roller to its intermediate or fixed standby position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Advancing Webs (AREA)
  • Winding Of Webs (AREA)
EP19800400899 1979-06-26 1980-06-18 Dispositif d'entrainement de bande Expired EP0021995B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7916350A FR2459692A1 (fr) 1979-06-26 1979-06-26 Dispositif d'entrainement de bande
FR7916350 1979-06-26

Publications (2)

Publication Number Publication Date
EP0021995A1 EP0021995A1 (fr) 1981-01-07
EP0021995B1 true EP0021995B1 (fr) 1983-07-13

Family

ID=9227087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800400899 Expired EP0021995B1 (fr) 1979-06-26 1980-06-18 Dispositif d'entrainement de bande

Country Status (4)

Country Link
EP (1) EP0021995B1 (show.php)
DE (1) DE3064116D1 (show.php)
ES (1) ES492749A0 (show.php)
FR (1) FR2459692A1 (show.php)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507251A1 (de) * 1985-03-01 1986-09-04 SMS Schloemann-Siemag AG, 4000 Düsseldorf Treibapparat fuer walzband
DE3529720A1 (de) * 1985-08-20 1987-03-05 Mannesmann Ag Anordnung eines hydraulischen anstellzylinders
EP0721813B1 (de) * 1995-01-16 1999-01-27 MANNESMANN Aktiengesellschaft Vorrichtung zum Führen von warmgewalztem Band durch einen Induktor
FR2820061B1 (fr) * 2001-01-30 2003-05-02 Vai Clecim Dispositif d'entrainement et de guidage d'une bande
CN101733286B (zh) * 2008-11-04 2012-10-03 上海重型机器厂有限公司 用于调整中厚板轧机轧制线标高的装置及其调整方法
CN117282899B (zh) * 2023-11-27 2024-02-02 山西恒冠重工集团有限公司 一种法兰加工用锻压装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796781A (en) * 1953-11-09 1957-06-25 Aetna Standard Eng Co Roll adjusting mechanism
FR85442E (fr) * 1960-03-14 1965-08-06 Moeller & Neumann Verwalt Ges Dispositif hydraulique de mise à poste pour laminoirs
FR1539009A (fr) * 1967-05-22 1968-09-13 Spidem Ste Nle Perfectionnement aux vérins et applications
US3645120A (en) * 1970-02-19 1972-02-29 Gulf & Western Ind Prod Co Coiling apparatus
NL177287C (nl) * 1974-08-13 1985-09-02 Hoesch Werke Ag Aandrijfinrichting voor bandvormig walsgoed.
DE2653725C2 (de) * 1976-11-26 1983-03-17 SMS Schloemann-Siemag AG, 4000 Düsseldorf Zweirollen-Treibvorrichtung für Bandhaspel

Also Published As

Publication number Publication date
EP0021995A1 (fr) 1981-01-07
FR2459692B1 (show.php) 1982-09-24
FR2459692A1 (fr) 1981-01-16
ES8102859A1 (es) 1981-02-16
ES492749A0 (es) 1981-02-16
DE3064116D1 (en) 1983-08-18

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