Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
  • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
  • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
  • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
  • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
  • B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
  • B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
  • B21B1/34—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
  • B21B15/0007—Cutting or shearing the product
  • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
• • 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
  • 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
  • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
  • B21B39/08—Braking or tensioning arrangements
  • B21B39/084—Looper devices

Definitions

• the invention relates to a Steckel rolling mill, comprising at least one reversing rolling stand and each one on the inlet side and outlet side to the reversing rolling mill arranged winding furnace.
• Steckel rolling mills of the type mentioned are known. Attention is drawn to US 3 613 426, to EP 0 593 398 A1, to EP 0 088 745 B1 and to JP 1 1207403 A, where Steckel rolling mills are disclosed and described.
• the pre-rolled strip is introduced into the reversing stand under the feed side of the winding furnace and through an inlet-side driver. After the first pass, the rolling stock is threaded into the exit-side winding furnace. After the tape has been wound in the outlet-side winding furnace, a predetermined strip tension is set up between the winding furnace and the reversing stand and the strip is rolled at the appropriate speed.
• the system is braked so that the end of the strip comes to a stop behind the nip of the reversing stand, but before an outlet-side driver.
• the outgoing driver introduces the tape to the reversing stand.
• the tape is threaded into the winding furnace on the inlet side.
• the beginning of the strip comes to a standstill at the end of the second stitch between the input side driver and the reversing stand.
• the invention has the object of providing a Steckel rolling mill of the generic type in such a way that a significant reduction of Length and the manufacturing cost is possible, the functionality of the rolling mill should be maintained at least largely.
• the solution of this problem by the invention is characterized in that between the inlet side arranged winding furnace and the at least one reversing rolling mill and between the at least one reversing mill stand and the outlet side arranged winding furnace each an integral unit is arranged, a driver, a pair of scissors and a looper.
• a driver a pair of scissors and a looper.
• two adjacent reversing rolling stands are arranged between the winding furnaces; This concept is also referred to as the use of twin rolling stands.
• the Steckel rolling mill is preferably free of rolling stands outside the at least one reversing roll stand between the winding furnaces; In particular, preferably no roughing stand is provided in the Steckel rolling mill.
• the scissors is preferably designed as a toggle shears. It is preferably provided with a hydraulic drive.
• the driver is preferably designed in swing construction. At least one role of the driver is preferably provided with a hydraulic adjusting element or is moved by this.
• the integral unit preferably has a common machine frame for the driver, scissors and looper.
• the common machine frame may further support at least one roller of a roller table.
• a roller table for the material to be rolled can be arranged between the two winding furnaces and through the at least one reversing rolling stand.
• the invention is based on an integral unit which unites a driver, a pair of scissors and a looper.
• This combination of said elements in an integral unit brings technological advantages, especially when smaller Steckel mills are to be realized.
• Another advantage is the much better maintenance of such a system.
• the components driver, scissors and Looper mentioned are well known as such in the art, so they need not be described in detail here.
• the scaffoldings are usually adapted only to the task of a finishing scaffold.
• a preliminary band is first produced in reversing flat stitches from the slab, ie, the roughing task is initially done here. Only from a defined strip thickness, preferably from about 25 mm, is further reversibly rolled in Steckel mode using the ovens until the final dimension of the tape is reached.
• the integral unit is thus arranged according to the invention at the point where otherwise the conventional driver is located, namely between the ovens and the reversing stands. There are two such units per Steckel mill provided.
• the integral unit By the integral unit, an optimally short design for the individual functions can be realized, which are shorter than the juxtaposition of the individual components, as is the case in previously known Steckel rolling mills.
• the number of interfaces is lower due to the integral concept, which also offers advantages. Therefore, the integral unit can be treated as a module within the Steckel mill.
• the driver is mechanically easy to control in swing construction, in contrast to prior art Steckel drivers in door construction.
• the swingarm design is low friction; A mathematical simulation is precisely possible, whereby the control is easier due to the always same behavior of the mechanics and leads to better control results.
• the looper speeds up the process, allowing higher output with better quality.
• the integral design allows a short plant length and a process-favorable temperature profile of the rolling stock. Advantages are also achieved in terms of operational safety:
• the scissors can be designed with a very simple and at the same time robust construction. With regard to the driver, the swingarm construction is also advantageous in this respect compared to the door construction method.
• the simple design and easy accessibility are a significant step forward here.
• the scissors are operated by a simple scissors cylinder on the operating side (not by two drives as in previously known solutions). Additional drive cylinders may be mounted on the operator side, not on the less accessible drive side, so it is easy for the operator to replace or service them. This results in a clear concept with good accessibility also from a maintenance point of view. In Steckel rolling mills otherwise very close conditions are given in a variety of attachments, so that the drive side is hardly accessible.
• the proposed concept comes out in total with a smaller number of components, which offers corresponding economic benefits.
• the resulting larger integral unit - compared to the individual components - is still easy to handle and not too big.
• the integral unit only has to be aligned once.
• the components contained in the unit are already optimally aligned with the accuracy of the processing machines.
• all components must be aligned separately.
• the alignment errors are reduced while simultaneously reducing the alignment effort.
• the installation of the larger unit with the various functions also saves time.
• the integral units can be preassembled and piped to the site and installed in a short time.
• FIG. 5 is a perspective view of the integral unit, shown from two different viewing directions, wherein the components of the unit are particularly well represented, and
• Fig. 7 is a perspective view of the integral unit, shown from two different viewing directions, wherein the actuators
• a Steckel rolling mill 1 which has two reversing rolling stands 2, which are arranged as twin stands next to each other.
• a first winding furnace 3 To the left of the rolling stands 2, a first winding furnace 3, to the right of the rolling stands 2, a second winding furnace 4 is arranged.
• a roller table 12 leads to be rolled Good.
• a first integral unit 5 is arranged between the winding furnace 3 and the rolling stands 2; between the rolling stands 2 and the winding furnace 4, a second integral unit 6 is positioned.
• each integral unit has a driver 7, a pair of scissors 8 and a looper 9.
• the driver 7 has an upper driver roller 7 'and a lower driver roller 7 ".
• the scissors 8 is designed as a toggle shears and has an upper knife 8' and a lower knife 8" which can cooperatively separate the slab and the band, respectively.
• the driver 7 fulfills the transport and drive task, as they also occur in conventional Steckel rolling mills.
• the use of the swing construction has proven particularly useful.
• the scissors 8 allow the foot and head incision at the appropriate time of the process, without the tape leaves the Steckel Brown.
• the defined band head or band foot thus produced allows safe transport and an optimal rolling process up to no finished thicknesses.
• the Steckel-Looper 9 enables an acceleration of the winding process. This significantly increases the productivity of the system.
• the components mentioned are illustrated once more in FIGS. 4 and 5, the drive side AS and the operating side BS being marked.
• driver cylinder 15 with which the upper drive roller can be moved via a rocker.
• Looper cylinders 16 can be seen (but only one of which can be seen), with which a looper roller can be moved.
• the scissors 8 is operated by scissors-cylinder 17.
• a hold-down cylinder 18 for the hold-down 14 Also shown is a hold-down cylinder 18 for the hold-down 14 and a roller table cylinder 19th

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Metal Rolling (AREA)
• Winding, Rewinding, Material Storage Devices (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=47681858

Family Applications (1)

Country Status (6)

Citations (7)

Family Cites Families (6)

• 2012
  • 2012-02-01 DE DE102012201418A patent/DE102012201418A1/de not_active Withdrawn
• 2013
  • 2013-01-31 TW TW102103608A patent/TWI540003B/zh not_active IP Right Cessation
  • 2013-01-31 CN CN201380013554.9A patent/CN104159677B/zh active Active
  • 2013-01-31 EP EP13703356.9A patent/EP2809459B1/de active Active
  • 2013-01-31 WO PCT/EP2013/051888 patent/WO2013113809A1/de active Application Filing
  • 2013-01-31 RU RU2014135327/02A patent/RU2578335C1/ru active

Patent Citations (7)

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