EP3544750B1 - Stauchgerüst mit einer anstellzylinderschnellverstellung - Google Patents

Stauchgerüst mit einer anstellzylinderschnellverstellung Download PDF

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Publication number
EP3544750B1
EP3544750B1 EP17821463.1A EP17821463A EP3544750B1 EP 3544750 B1 EP3544750 B1 EP 3544750B1 EP 17821463 A EP17821463 A EP 17821463A EP 3544750 B1 EP3544750 B1 EP 3544750B1
Authority
EP
European Patent Office
Prior art keywords
adjusting means
quick
cylinder
action
adjustment
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.)
Active
Application number
EP17821463.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3544750A1 (de
Inventor
Stefan Wendt
Martin Schmidt
Michael Zielenbach
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.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
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Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3544750A1 publication Critical patent/EP3544750A1/de
Application granted granted Critical
Publication of EP3544750B1 publication Critical patent/EP3544750B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • 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
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • 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
    • B21B2203/18—Rolls or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force
    • 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
    • B21B31/203—Balancing rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product

Definitions

  • the invention relates to an upsetting stand with an adjustment cylinder quick adjustment for long, rapid lifting movements in upsetting stands, at least consisting of an upsetting stand, adjustment system, balancing system and upsetting roller sets, each comprising at least one piston, which acts on both sides of the upsetting roller chocks to act against the rolling stock and where the on the upsetting roller can be actuated hydraulically on each side by means of a fluid and the quick adjustment cylinder is fastened in the upsetting stand and applies the force required for the upsetting process.
  • the adjusting device in upsetting stands has the task of setting the required roll gap, maintaining it and regulating it if necessary.
  • the terms quick employment and regular employment are used here.
  • the quick adjustment is used to quickly open or close the roll gap.
  • the standard setting is the setting in which the rolling force is ultimately transferred to the rolling stock with the roll gap previously set by the quick setting.
  • the standard setting keeps the roll gap within a predefined range Range of values constant.
  • the system is only kept free of play via an upsetting roller balancing, ie there is no play between the upsetting roller chock, cylinder head and the cylinder piston.
  • adjusting devices are known as purely mechanical, as purely hydraulic or as a combination of mechanical and hydraulic adjustment. It is technically possible and sensible to arrange one or two positions on each side.
  • a purely hydraulic adjusting device in compression stands in the roughing stand upsetter of a hot strip mill is known. This is designed as a classic differential cylinder, consisting of a piston, cylinder cover and cylinder base.
  • This design has limits both in the required fluid requirement and thus the travel speed as well as in the sensitivity to lateral force when the piston rod is fully extended.
  • a device for edge rolling of metal plates comprises a roller, which is mounted on a block, comprises at least one edge processing hydraulic cylinder with a relatively large working surface, at least one further hydraulic cylinder being provided with a relatively small working surface, and each Cylinder has an associated piston, the pistons being mechanically coupled such that movement of one causes movement of the other.
  • the device requires a positive connection, which may be detachable for maintenance purposes, between the employment, the balancing cylinder and the balancing traverse. This can always lead to leaks at the connection points. Furthermore, impermissibly high transverse forces can act on the cylinder piston, which can damage the piston rod and other guide elements, which in turn leads to further leaks.
  • EP 2 265 395 B1 further discloses a type of telescopic cylinder which has two oil columns connected in series to the rolling stock. The entire adjustment path can only be covered by using both oil columns.
  • JP S59 220205 A discloses an apparatus with which press operation and caliber rolling can be carried out under optimal conditions by a composite cylinder equipped with a large piston at high speed and low speed and a small piston at high power and high speed.
  • pitch cylinders in compression stands in a so-called sequential circuit are known. These are very complex in terms of control technology and must be kept in sync with additional valves.
  • the adjusting cylinder quick adjustment consists of at least one double cylinder on each side of the upsetting stand, the double cylinder than consists of two coupled separately controllable cylinders and is designed for quick adjustment on the one hand and for regulating adjustment of the compression roller on the other.
  • the cylinder piston of the quick adjustment and the housing of the control adjustment are connected to the same fixed bank of the upsetting stand and, in addition, the housing of the quick adjustment can be formed in one piece with the piston rod of the control adjustment.
  • bank is understood to mean an abutment on which the forces implied by the adjusting cylinder quick adjustment and the control adjustment are supported and ultimately transferred to the rolling stock via the upsetting rollers.
  • the bank can comprise the edger stand with a crosshead and the stand bars arranged at the top and bottom.
  • the cylinder piston of the quick adjustment can be connected to the cylinder piston of the control adjustment, while the housing of the quick adjustment can be connected to the same fixed bank of the housing of the control adjustment.
  • the cylinder housing of the quick adjustment is connected to the piston rod of the control adjustment, while the cylinder piston of the quick adjustment is connected to the same fixed bank of the housing of the control adjustment.
  • the quick adjustment and the control adjustment can be designed to be controllable independently of one another and the movement of the housing of the quick adjustment or the cylinder piston triggered by the activation then causes the movement of the cylinder piston of the control adjustment. It is also provided that the cylinder pistons of the quick adjustment and the control adjustment can have the same stroke.
  • the quick adjustment compared to the control adjustment has a higher adjustment speed, which can be several times higher compared to the control adjustment due to the area relationships of the cylinder pistons between quick adjustment and control adjustment with the same volume flow of the fluid, and the required adjustment via the control adjustment Applies rolling force to the upsetting roller.
  • the displaced hydraulic fluid volume in the non-active part of the double cylinder can be directed into the other cylinder chamber during the adjustment movement, any missing fluid volume being able to be fed into the hydraulic system and excess fluid volume being able to be drained off.
  • a reservoir or an expansion tank can be provided.
  • the cylinder piston of the control position of the double cylinder is designed as a piston and two oppositely directed piston rods.
  • the oppositely directed piston rods of the control position of the double cylinder can have the same diameter.
  • the cylinder piston of the quick adjustment of the double cylinder can be designed as a piston with two oppositely directed piston rods.
  • the oppositely directed piston rods of the quick adjustment of the double cylinder can also have the same diameter.
  • the cylinders of the double cylinder are structurally nested in one another. This enables a compact and space-saving design to be achieved. This is particularly advantageous if existing upset rolling mills are converted at the place of use and additional space can thereby be created.
  • the piston of the control adjustment forms the housing of the quick adjustment. This contributes to a very compact, self-contained construction of a piston / cylinder unit formed in this way, consisting of the quick adjustment and the associated adjustment adjustment. Furthermore, the control position is assigned a cylinder head which can reduce the lateral forces on the position resulting from the tapping joint.
  • the cylinder pistons can also be equipped with an anti-rotation device.
  • the controls of the individual positions on each side of the double cylinder and the other possible positions can be combined in a control unit and controlled by this.
  • the respective cylinders of the double cylinder can be controlled by valves that work independently of one another.
  • the operating states in the double cylinders can be individually coordinated.
  • the control valves used and installed in the hydraulic system can be designed as servo or proportional or directional valves.
  • the control of the positions can be connected or provided with sequential circuits. In this way, a particularly good synchronized pre-positioning of the positions on one side can be achieved.
  • the adjusting cylinder quick adjustment 9 is designed as an integral part of an edger 10.
  • the upsetter 10 serves to compress the edges of a rolling stock 11 entering the upsetter 10 in order to influence the width of the incoming rolling stock 11 in a targeted manner in the further rolling process.
  • the edger 10 comprises at least one edger stand 20 on one side, which is connected to a stand crosshead 21.
  • An adjoining compression roller unit 30 essentially consists of an upper and lower upsetting roller chocks 32 and 33 in which an upsetting roller 31 is rotatably supported.
  • the rolling force transmitted to the upsetting roller 31 is balanced with the aid of an upsetting roller balance 40.
  • the upsetting roller balance 40 comprises a balancing crossbar 41 and a balancing cylinder 42.
  • the balancing crossbar 41 is connected to the upsetting roller chocks 32, 33.
  • the balancing cylinder 42 acts on the double cylinder 50 via the balancing crossbar 41 and the upsetting roller chocks 32, 33 connected therewith and does not exert any work force on the rolling stock 11.
  • the double cylinders 50 are assigned to the upper and lower upsetting roller chocks 32 and 33 and in the linear direction of force.
  • the double cylinder 50 consists of the control setting 51 and the quick setting 52 connected to it.
  • the rod side 51a of the control setting 51 forms a housing 54a for the piston 54 of the quick setting 52.
  • the piston 54 is connected to the housing of the control position 51.
  • a piston 53 is also assigned to the control setting 51.
  • the piston 53 has a larger diameter than the piston rod 53a connected to it.
  • the piston rod 53a also forms the housing 54a for quick adjustment.
  • the rapid adjustment 52 is assigned a displacement sensor 56, via which the travel of the pistons 53 and 54 can be determined.
  • the quick adjustment 52 is assigned an anti-rotation device 57, which prevents the pistons 53 and 54 from rotating in the corresponding cylinders about their longitudinal axis.
  • the Fig. 2 shows a possible circuit 60 for the adjusting cylinder quick adjustment 9 with the double cylinder 50 provided for this purpose.
  • the circuit 60 for the quick adjustment 52 takes place via at least one first short-circuit valve 63, which is arranged between the inflow and outflow 63a for the hydraulic fluid and connects them quasi directly to one another.
  • at least one further second short-circuit valve 64 is provided that connects the piston side of the quick adjustment with a suitable pretensioned system for the purpose of volume compensation.
  • the circuit 60 of the control setting 51 likewise takes place via at least one short-circuit valve 65, which connects the inlet and outlet 65a to one another.
  • the hydraulic fluid can flow in a circuit and can be collected in a fluid supply and from there can be fed into the circuit 60 via a pump P.
  • Fig. 3 describes the fluid flows when moving out in the direction of the arrow with the quick adjustment.
  • the quick adjustment connects with the valve 61 the piston volume 54 of the quick adjustment 52 with the pressure supply and the rod volume 70a of the quick adjustment with the return.
  • the quick adjustment is actively controlled and moved.
  • the circuit 60 connects the two cylinder volumes of the control setting 51 to one another via the valve 65, so that the fluid can be displaced directly from one cylinder chamber to the other by the movement caused by the quick setting.
  • Fig. 4 shows a possible circuit diagram 80 of the double cylinder 50 with a connected control cylinder in a sequential circuit 81.
  • the circuit consists of at least one additional first short-circuit valve 83 and at least one additional second short-circuit valve 84.
  • the fluid can flow from one cylinder chamber of the control position 51 directly into the opposite one Cylinder chamber of the following control setting 51B can be displaced.
  • the displaced fluid of the control position 51 B can get directly into the oppositely arranged cylinder chamber of the control position 51.
  • the Fig. 5 is a schematic representation of the fluid flow 90 in a sequential circuit during an extending movement of a double cylinder 50 which is connected to a control setting 51 and a quick setting 52. Extending movement means the movement of the control setting 51 in the direction of the arrow and thus against the upsetting roller and in the direction of the rolling stock.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
EP17821463.1A 2016-11-22 2017-11-10 Stauchgerüst mit einer anstellzylinderschnellverstellung Active EP3544750B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016122521.5A DE102016122521A1 (de) 2016-11-22 2016-11-22 Anstellzylinderschnellverstellung in Stauchgerüsten
PCT/DE2017/100952 WO2018095465A1 (de) 2016-11-22 2017-11-10 Anstellzylinderschnellverstellung in stauchgerüsten

Publications (2)

Publication Number Publication Date
EP3544750A1 EP3544750A1 (de) 2019-10-02
EP3544750B1 true EP3544750B1 (de) 2020-05-13

Family

ID=60811744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17821463.1A Active EP3544750B1 (de) 2016-11-22 2017-11-10 Stauchgerüst mit einer anstellzylinderschnellverstellung

Country Status (7)

Country Link
US (1) US11117173B2 (zh)
EP (1) EP3544750B1 (zh)
JP (1) JP2020513322A (zh)
CN (1) CN110114154B (zh)
DE (1) DE102016122521A1 (zh)
TW (1) TW201825206A (zh)
WO (1) WO2018095465A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110645226A (zh) * 2019-10-08 2020-01-03 达英科(南京)设备有限公司 有效行程可调气缸组

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59220205A (ja) 1983-05-27 1984-12-11 Nippon Steel Corp 幅圧下式圧延機の圧下装置
JPS60129407A (ja) * 1983-12-15 1985-07-10 Ishikawajima Harima Heavy Ind Co Ltd 流体圧シリンダ−及び該流体圧シリンダ−を具備した竪型圧延機
JPH05248405A (ja) * 1992-03-10 1993-09-24 Kobe Steel Ltd 加工機械の加圧装置
JP2001153106A (ja) * 1999-11-30 2001-06-08 Kawamura Seisakusho:Kk 油圧シリンダ、及び速度切換機能を有する油圧システム
DE102004039494A1 (de) 2003-11-19 2005-06-23 Sms Demag Ag Anstellzylinder in Walzgerüsten, unter anderem in Vertikal-Stauchgerüsten
ITVA20050067A1 (it) * 2005-12-07 2007-06-08 Comerio Ercole Spa Sistema di posizionamento di un cilindro operatore per calandra o mescolatore e di regolazione della luce
JP2008240849A (ja) * 2007-03-27 2008-10-09 Riken Kiki Kk 油圧シリンダの制御装置
US8627699B2 (en) * 2008-04-23 2014-01-14 Sms Innse Spa Device and method for adjusting an edger
GB2468913B (en) 2009-03-27 2011-02-16 Siemens Vai Metals Tech Ltd Fully hydraulic edger for plate mills
CN101653785B (zh) * 2009-09-15 2011-02-09 太原通泽重工有限公司 轧辊的快速分离调整装置
CN202079087U (zh) * 2011-04-26 2011-12-21 宝山钢铁股份有限公司 可调的立辊侧压装置
CN202591212U (zh) * 2012-02-14 2012-12-12 北京京诚之星科技开发有限公司 二辊立式轧机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN110114154B (zh) 2022-01-04
DE102016122521A1 (de) 2018-05-24
CN110114154A (zh) 2019-08-09
US11117173B2 (en) 2021-09-14
TW201825206A (zh) 2018-07-16
EP3544750A1 (de) 2019-10-02
US20210170459A1 (en) 2021-06-10
WO2018095465A1 (de) 2018-05-31
JP2020513322A (ja) 2020-05-14

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