CN109967524B - Rolling device - Google Patents

Rolling device Download PDF

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Publication number
CN109967524B
CN109967524B CN201811279316.3A CN201811279316A CN109967524B CN 109967524 B CN109967524 B CN 109967524B CN 201811279316 A CN201811279316 A CN 201811279316A CN 109967524 B CN109967524 B CN 109967524B
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China
Prior art keywords
roller
workpiece
rolling device
rollers
axial direction
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Active
Application number
CN201811279316.3A
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Chinese (zh)
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CN109967524A (en
Inventor
D·许斯根
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SMS Group GmbH
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SMS Group GmbH
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    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/005—Continuous extrusion starting from solid state material
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Metal Extraction Processes (AREA)

Abstract

The invention relates to a rolling device comprising a first roller (1) and a second roller (2), wherein the rollers (1, 2) are mounted in a carrier (11) and a workpiece (10) passes through a roll gap (9) between the rollers (1, 2), wherein each of the rollers (1, 2) has a roller surface (5, 6) that acts on the workpiece in the radial direction, and wherein at least a first of the rollers has a guide surface (7, 8) that acts on the workpiece in the axial direction, wherein at least the first of the rollers (1) can be variably positioned in the axial direction (3a, 4a) by means of an adjusting device (14).

Description

Rolling device
Technical Field
The invention relates to a rolling device comprising a first roller and a second roller, wherein the rollers are mounted in a carrier and a workpiece passes through a roller gap between the rollers, wherein each of the rollers has a roller surface acting on the workpiece in a radial direction, and wherein at least a first of the rollers has a guide surface acting on the workpiece in an axial direction, wherein at least the first of the rollers can be variably positioned in the axial direction by means of an adjusting device.
Background
US 3,934,446a describes a rolling device for producing wire rods, in which a blank is passed between two driven rollers and then extruded into a wire rod by means of a die for shaping. The rollers serve as radial and axial guides for the blank.
Disclosure of Invention
The invention aims to provide a rolling device which can realize long service life of a roller by a simple means.
According to the invention, this object is achieved for the rolling device mentioned at the outset in that the rolling device comprises a first roller and a second roller, wherein the rollers are mounted in a carrier and the workpiece passes through a roller gap between the rollers, wherein each of the rollers has a roller surface that acts on the workpiece in the radial direction, and wherein at least a first roller of the rollers has a guide surface that acts on the workpiece in the axial direction, wherein at least the first roller of the rollers can be variably positioned in the axial direction by means of an adjusting device, the rollers pressing the workpiece through a die for shaping, wherein the die is arranged in particular directly after the roller gap of the rollers. By variably positioning the rollers in the axial direction, wear of the guide surfaces acting in the axial direction can be compensated for via readjustment of the rollers.
In the rolling device according to the invention, it is provided that the roller presses the workpiece through a die which serves for shaping. Preferably, the matrix is arranged here immediately after the nip of the rollers. In this arrangement, the adjustment of the guide surface in the lateral or axial direction is therefore likewise advantageous, since a precise centering of the workpiece relative to the die is ensured. The axial adjustability of the rollers thus allows the width as well as the position of the nip to be adjusted.
For the same reason, in a generally preferred rolling device according to the invention, it is provided that at least one, in particular both, of the rollers can likewise be adjusted in the radial direction.
In a simple and particularly advantageous embodiment of the invention, each of the rollers has a guide surface which acts on the workpiece in the axial direction. The two rollers can be designed in particular substantially mirror-symmetrical.
It is generally advantageous that each of the rollers can be variably positioned in the axial direction by means of an adjusting device, so that a comprehensive adjustment of the width and position of the roll gap can be achieved.
In a simple and reliably implementable embodiment of the invention, it is provided that the adjusting device comprises a counterpart dimensioned in a defined manner, by means of which the axial position of the roller on the shaft is defined. The mating piece here forms a stop for the axially defined positioning of the respective roller on the shaft. In this case, readjustment of the width and/or position of the roll gap can be achieved with little expenditure by providing a set of correspondingly closely spaced mating pieces.
In an alternative embodiment of the invention, the adjusting device can also comprise a stop mechanism which can be adjusted steplessly, so that an arbitrary or continuous positioning of the shaft can be achieved. The stop mechanism may for example comprise an adjusting nut in a simple manner.
It is generally advantageous for at least the core region of the workpiece to have a partially liquid state upon entry into the nip. This allows particularly low rolling forces and also combines a particularly advantageous structure of the workpiece which is shaped and cooled as a result of the shaping of the die. The partially liquid state is understood here to mean that the material of the workpiece is at a temperature in the melting range of the respective alloy.
The rolling device according to the invention is particularly well suited for shaping workpieces made of non-ferrous metals. Further preferably, the workpiece consists of a light metal, and particularly preferably of a magnesium alloy and/or an aluminum alloy. In particular the combination of magnesium and/or aluminium alloys with extrusion through a die in a partially liquid state gives very good results. This applies in particular to the fact that the roll gap is exactly centered in the die by means of the adjustment option according to the invention.
Additional advantages and features result from the embodiments described below.
Drawings
Preferred embodiments of the invention are described below and are further elucidated with the aid of the drawing. Wherein:
fig. 1 shows a partially schematic sectional view of a rolling device according to the invention, wherein the roller axes of the rollers are in a sectional plane;
fig. 2 shows a spatially general view of the rolling device of fig. 1;
fig. 3 shows a partially schematic sectional view of a rolling device according to the invention, in which the roller axes of the rollers run perpendicular to the sectional plane.
Detailed Description
The rolling apparatus according to the embodiment of the present invention includes a first roller 1 and a second roller 2, which are supported in a stand 11. The rollers 1, 2 are substantially mirror-symmetrically constructed and have stepped sections 1a, 1b, 2a, 2b of different diameters.
Each of the rollers 1, 2 is fitted on a driven shaft 3, 4. The shafts 3, 4 rotate relative to each other about the shaft axes 3a, 4 a.
The roller surfaces 5, 6 of the smaller- diameter sections 1a, 2a of the rollers 1, 2 acting in the radial direction are arranged opposite one another in the radial direction.
Furthermore, the guide surfaces 7, 8 acting in the axial direction are arranged opposite one another in the axial direction. The guide surfaces are configured as side surfaces of the larger diameter sections 1b, 2b of the rollers 1, 2.
In summary, a laterally limited or closed roller gap 9 is delimited by the radially effective roller surfaces 5, 6 and the axially effective guide surfaces 7, 8, through which the workpiece 10 is conveyed by the rotation of the rollers.
Immediately after the narrowest point of the roller gap 9, a die 12 is arranged, by means of which the workpiece is pressed or pressed for shaping. Following the die 12 is an outlet 13 for guiding and cooling the extruded workpiece.
The workpiece preferably enters the nip in a partially liquid state. This applies at least to the core region of the workpiece, wherein, depending on the circumstances and process parameters, the edge region may have already solidified. The partially liquid state is preferably reached after the material to be extruded has been melted with the same heat and poured.
Since the axially directed guide surfaces 7, 8 can come into frictional contact with the workpiece 10, wear occurs at the roller surfaces 5, 6 and at the guide surfaces 7, 8.
In order to re-secure the lateral boundaries of the roll gap 9 after wear, the rollers 1, 2 can be positioned movably in the axial direction by means of an adjusting device 14 according to the invention. The adjusting device 14 comprises on each of the shafts 3, 4a fitting 15, 16 against which the respective roller 1, 2 abuts after being pushed onto the shaft in the axial direction. The optionally dimensioned mating elements 15, 16 bear against stops 17, 18 arranged fixedly on the shafts 3, 4.
The mating piece has defined dimensions such that the axial position of the roller on its shaft is defined by a corresponding selection of the dimensions. The rollers 1, 2 thus positioned are held clamped against the mating pieces 15, 16 by clamping mechanisms 19, 20, respectively. In this embodiment, the adjustment device 14 comprises clamping mechanisms 19, 20 and engagement members 15, 16.
Not shown is the likewise existing adjustability of the shafts 3, 4 or of the rollers 1, 2 in the radial direction. This is effected in a known manner via the positioning of the rotary bearings of the shafts 3, 4. In general, the roller gap can also be adjusted in terms of its height and its radial position. In particular, it can thereby be ensured that the workpiece 10 passes centrally through the rollers 1, 2 just before the die.
List of reference numerals
1 first roller
1a smaller diameter section
1b section of larger diameter
2 second roller
2a smaller diameter section
2b section of larger diameter
3 first shaft
3a axis of the first shaft
4 second axis
4a axis of the second shaft
5 radially acting roll surface of the first roll
6 radially acting roll surface of the second roll
7 guide surface of the first roller acting in the axial direction
8 axially acting guide surface of the second roller
9 roll gap
10 workpiece
11 support
12 concave die
13 outlet
14 adjusting device
15 mating part of the first roller
16 mating parts of second roller
17 stop of the first roller
18 stop of the second roller
19 clamping mechanism for first roller
20 clamping mechanism of second roller

Claims (9)

1. A rolling apparatus comprises
A first roller (1) and a second roller (2), wherein the first roller (1) and the second roller (2) are supported in a stand (11) and a workpiece (10) passes through a nip (9) between the first roller (1) and the second roller (2),
each of the first roller (1) and the second roller (2) has a roller surface (5, 6) acting on the workpiece in the radial direction, and
each of the first roller (1) and the second roller (2) has a guide surface (7, 8) acting on the workpiece in the axial direction,
at least the first roller (1) of the first roller (1) and the second roller (2) can be variably positioned in the axial direction (3a, 4a) by means of an adjusting device (14),
characterized in that the first roller (1) and the second roller (2) press the workpiece (10) through a matrix (12) for forming, wherein the matrix (12) is arranged immediately after a nip (9) of the first roller (1) and the second roller (2), the first roller (1) and the second roller (2) being configured mirror-symmetrically and having a section (1a, 2a) of smaller diameter and a section (1b, 2b) of larger diameter, respectively, the side of the section of larger diameter being configured as a guide surface (7, 8) and the roller surface (5, 6) being configured on the section (1a, 2a) of smaller diameter.
2. A rolling device according to claim 1, characterized in that each of the first (1) and second (2) rollers is variably positionable in the axial direction by means of the adjusting device (14).
3. A rolling device according to claim 1 or 2, characterized in that the adjusting device (14) comprises a fitting piece (15, 16) dimensioned in a defined manner, by means of which the axial position of the first and second roller (1, 2) on the shaft (3, 4) is defined.
4. A rolling device according to claim 1 or 2, characterized in that the adjusting device (14) comprises a steplessly adjustable stop mechanism.
5. A rolling device according to claim 4, characterized in that the stop means is an adjusting nut.
6. A rolling device according to claim 1 or 2, characterized in that at least the core region of the work piece (10) has a partly liquid state when entering the roll gap (9).
7. A rolling device according to claim 1 or 2, characterized in that the workpiece (10) consists of non-ferrous metal.
8. A rolling device according to claim 7, characterized in that the work piece (10) consists of light metal.
9. A rolling device according to claim 8, characterized in that the workpiece (10) consists of a magnesium alloy and/or an aluminum alloy.
CN201811279316.3A 2017-11-03 2018-10-30 Rolling device Active CN109967524B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017219577.0 2017-11-03
DE102017219577.0A DE102017219577B3 (en) 2017-11-03 2017-11-03 rolling device

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Publication Number Publication Date
CN109967524A CN109967524A (en) 2019-07-05
CN109967524B true CN109967524B (en) 2022-03-08

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US (1) US20190134687A1 (en)
CN (1) CN109967524B (en)
DE (1) DE102017219577B3 (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186031A (en) * 1962-12-24 1965-06-01 Schloemann Ag Rolling mills for producing strip from granular and pulverulent material
US3934446A (en) * 1974-04-16 1976-01-27 Betzalel Avitzur Methods of and apparatus for production of wire
JPS6083754A (en) * 1983-10-14 1985-05-13 Ishikawajima Harima Heavy Ind Co Ltd Twin roll type continuous casting machine
JPS62197246A (en) * 1986-02-21 1987-08-31 Kobe Steel Ltd Extrusion apparatus for continuous casting
DE3634368A1 (en) * 1986-10-09 1988-04-21 Schloemann Siemag Ag Shape-imparting casting device for the continuous casting of flat stock from metal
RU2200644C2 (en) * 2001-04-13 2003-03-20 Красноярская государственная академия цветных металлов и золота Apparatus for continuous casting and extruding hollow shapes
RU2335376C1 (en) * 2006-12-04 2008-10-10 Государственное образовательное учреждение высшего профессионального образования "Государственный университет цветных металлов и золота" Device for continuous casting, rolling and pressing of profiles
CN101663086A (en) * 2006-10-27 2010-03-03 Sms西马格股份公司 The band discharger
CN201482948U (en) * 2009-08-29 2010-05-26 湖南九一连续铸轧实业有限责任公司 Double-roller casting-rolling machine casting-rolling roller machine unit with adjustable roller gap
CN101939117A (en) * 2008-02-08 2011-01-05 株式会社Ihi Roll mill
WO2014168501A1 (en) * 2013-04-09 2014-10-16 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Device for the continuous casting, rolling and extrusion of rods
CN104588430A (en) * 2014-11-30 2015-05-06 东北大学 Non-ferrous metal continuous casting-rolling-extrusion integral processing forming device and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017665A (en) * 1958-01-13 1962-01-23 Crucible Steel Co America Rolling mill
DE1527722A1 (en) * 1966-11-15 1970-04-09 Schloemann Ag Deformation device consisting of four adjustable tools forming a closed caliber
JPH07115134B2 (en) * 1988-09-02 1995-12-13 日新製鋼株式会社 Thin plate continuous casting machine
DE10003126C5 (en) * 1999-10-17 2007-05-24 Karl Fuhr Gmbh & Co. Kg. Rolling apparatus and method for adjusting such

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186031A (en) * 1962-12-24 1965-06-01 Schloemann Ag Rolling mills for producing strip from granular and pulverulent material
US3934446A (en) * 1974-04-16 1976-01-27 Betzalel Avitzur Methods of and apparatus for production of wire
JPS6083754A (en) * 1983-10-14 1985-05-13 Ishikawajima Harima Heavy Ind Co Ltd Twin roll type continuous casting machine
JPS62197246A (en) * 1986-02-21 1987-08-31 Kobe Steel Ltd Extrusion apparatus for continuous casting
DE3634368A1 (en) * 1986-10-09 1988-04-21 Schloemann Siemag Ag Shape-imparting casting device for the continuous casting of flat stock from metal
RU2200644C2 (en) * 2001-04-13 2003-03-20 Красноярская государственная академия цветных металлов и золота Apparatus for continuous casting and extruding hollow shapes
CN101663086A (en) * 2006-10-27 2010-03-03 Sms西马格股份公司 The band discharger
RU2335376C1 (en) * 2006-12-04 2008-10-10 Государственное образовательное учреждение высшего профессионального образования "Государственный университет цветных металлов и золота" Device for continuous casting, rolling and pressing of profiles
CN101939117A (en) * 2008-02-08 2011-01-05 株式会社Ihi Roll mill
CN201482948U (en) * 2009-08-29 2010-05-26 湖南九一连续铸轧实业有限责任公司 Double-roller casting-rolling machine casting-rolling roller machine unit with adjustable roller gap
WO2014168501A1 (en) * 2013-04-09 2014-10-16 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Device for the continuous casting, rolling and extrusion of rods
CN104588430A (en) * 2014-11-30 2015-05-06 东北大学 Non-ferrous metal continuous casting-rolling-extrusion integral processing forming device and method

Also Published As

Publication number Publication date
DE102017219577B3 (en) 2019-01-31
US20190134687A1 (en) 2019-05-09
CN109967524A (en) 2019-07-05

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