WO1992005894A1 - A profiling machine - Google Patents

A profiling machine Download PDF

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Publication number
WO1992005894A1
WO1992005894A1 PCT/SE1991/000646 SE9100646W WO9205894A1 WO 1992005894 A1 WO1992005894 A1 WO 1992005894A1 SE 9100646 W SE9100646 W SE 9100646W WO 9205894 A1 WO9205894 A1 WO 9205894A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal sheet
shaping
stations
sheet
machine
Prior art date
Application number
PCT/SE1991/000646
Other languages
French (fr)
Inventor
Ernst Kero
Original Assignee
Plannja Ab
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 Plannja Ab filed Critical Plannja Ab
Publication of WO1992005894A1 publication Critical patent/WO1992005894A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • B21D13/045—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling the corrugations being parallel to the feeding movement

Definitions

  • the present invention relates to a machine for shaping profiled metal sheet with the aid of rolls, for in ⁇ stance in the manufacture of trapezoidal-profiled thin metal sheet for building construction purposes, said machine including a number of shaping stations which are arranged sequentially in the direction in which the metal sheet is advanced and which include an upper beam positioned above the metal sheet and a lower beam posi ⁇ tioned beneath said sheet, wherein the beams are mounted for rotation about an axle which extends trans ⁇ versely to the advancing direction of the metal sheet, wherein said beams carry at least two groups of rotata- ble shaping rolls, wherein said groups of rolls are directed in different directions on respective beams such that when rotating the beam to different positions of rotation, one roll group at a time will be located i- n active/operative position to enable a profile va ⁇ riant to be produced, at the same time as the remaining roll group or roll groups on the beam is/are located in an inactive position, wherein the metal sheet is advan ⁇ ced through the shaping machine by means of a
  • each shaping or forming station includes groups of rolls which are directed in diffe ⁇ rent directions and which at times occupy an operative position and at times an inactive, rest position, de ⁇ pending on the type of profile or variant of profile to be produced, have certain limitations with respect to the possibility of advancing the metal sheets through the machine in a simple fashion.
  • the shaping rolls normally have different diameters and the rolls tend to slip and slide against the metal sheet when driven at the same angular speed. It is therefore beneficial to arrange the rolls so that they will rotate freely.
  • feed stations In order to achieve purposeful and effective feed of the metal sheet through the machine or mill, a number of separate feed stations have been placed along the shaping machine, with respect to the aforesaid aspects, these feed stations being positioned between the sha ⁇ ping stations. In this case, the feed stations do not have a profiling activity, but are merely responsible for advancing the metal sheet.
  • Such separate feed sta ⁇ tions are described in WO 89/03260.
  • the shaping machine described in WO 89/03260 includes a plurality of feed stations disposed between the shaping stations.
  • the feed stations include a driven, rotatable feed roller which is positioned on one side of the pro ⁇ filed metal sheet, at the same time as different groups of freely-rotating pressure rollers are mounted on a rotatable beam so as to enable adjustments to be made to the positions of the pressure rollers when producing different kinds of profiles in the metal sheet.
  • the aforementioned rotatable beam thus enables requisite pressure rollers to be revolved into active position in principly the same method as the shaping rolls concer ⁇ ned are revolved into active position in the shaping stations.
  • the construction of such a ma ⁇ chine is relatively complicated and the metal-sheet feed stations have a negative influence on the length measurements of the machine, since rotation of the ro ⁇ tatable beam in respective feed stations requires a re- latively large amount of space.
  • the object of the present invention is to provide a shaping machine of the kind described in the introduc ⁇ tion in which the metal-sheet feed" stations are con- stru ⁇ ted in a manner to enable adjacent shaping sta ⁇ tions to be spaced a short distance apart, and in which the feed stations have an extremely simple construc ⁇ tion.
  • This object is achieved with the inventive metal- shaping machine having the characterizing features set forth in the following Claims.
  • the inventive shaping machine has a very simple con ⁇ struction and the feed stations require only a relati ⁇ vely small amount of space and thus have only a small influence on the length measurements of the machine.
  • Adjustment to the feed stations when switching between different types of profile can be effected very simply and very quickly.
  • the inventive machine also affords economical advantages.
  • Figure 1 is a schematic side view of a section of the inventive machine
  • Figure 2 is a cross-sectional view of the machine through a shaping station, i.e. a view taken on the line II-II in Figure 1
  • Figure 3 illustra ⁇ tes the profiled metal sheet exemplified in Figure 2 in a freely placed state
  • Figure 4 is a cross-sectional view of a feeding station of said machine, i.e. a sec- tional view taken on the line IV-IV in Figure 1
  • Figure 5 is a schematic side view of a section of the inventive machine
  • Figure 2 is a cross-sectional view of the machine through a shaping station, i.e. a view taken on the line II-II in Figure 1
  • Figure 3 illustra ⁇ tes the profiled metal sheet exemplified in Figure 2 in a freely placed state
  • Figure 4 is a cross-sectional view of a feeding station of said machine, i.e. a sec- tional view taken on
  • Figure 2 illustrates the shaping station of Figure 2 when said station is adjusted to produce an alternative kind of profile
  • Figure 6 illustrates the profiled metal sheet exemplified in Figure 5 in a freely placed state
  • Figure 7 illustrates the feeding station of Figure 4 but with the station adjusted for feeding the profiled metal sheet illustrated in Figures 5 and 6.
  • the inventive machine 1 includes a plurality of shaping stations 10A, 10B, etc., which are disposed sequenti ⁇ ally in the direction of advancement of the metal sheet 100, i.e. its feeding direction, and of which only two such stations are shown in Figure 1.
  • the number of sha ⁇ ping stations 10 required is depending on the number of stages required to shape the metal sheet 100 to a desi ⁇ red final profile.
  • the inventive machine 1 also includes a number of se ⁇ quentially arranged metal-sheet advancing or feeding stations 60A, 60B, 60C, etc., of which only three sta ⁇ tions are shown in Figure 1.
  • the number of metal-sheet advancing or feeding stations 60 provided in the mill may, of course, be varied as desired, in which regard the smallest length of the metal sheets 100, for in ⁇ stance, will be an important parameter.
  • the machine 1 includes a machine stand 2 which carries remaining machine components.
  • the stand 2 is shown only fragmentarily in Figures 2, 4, 5 and 7.
  • the shaping stations 10 and the metal-sheet advancing stations 60 are thus carried by the stand 2.
  • a shaping station 10 includes an upper beam 11 which is positioned above the plane in which the sheet metal 100 is advanced, and a lower beam 12 which is positioned beneath the sheet-metal advancing plane.
  • the upper beam 11 can be rotated about its geometric axis on an upper axle 13, and the lower beam 12 can be rotated about its geometric axis on a lower axle 14, wherein said axles extend transversely to the direction in which the sheet metal 100 is advanced through the machine.
  • the direc- tion in which the sheet metal 100 is advanced through the machine is indicated by an arrow A in Figure 1.
  • the upper beam 11 is journalled relative to the stand 2 on journal bearings 15, 16 and the lower beam 12 is jour ⁇ nalled relative to the stand 2 on journal bearings 17, 18.
  • the bearings 15 and 16 are acted upon by a spring device 19, which may have the form of a pressure spring, so that adjustments can be made in response to variations in thickness of the metal sheet 100 to be profiled.
  • the beams 11 and 12 can be locked in their various swing positions by means of a locking device
  • the be- ams have four different revolving positions, although it will be understood that the number of positions to which the beams are rotated can be varied from two and upwards, depending on the number of types of profile that the machine 1 shall be capable of producing.
  • the illustrated machine 1 is designed so as to be capa ⁇ ble of producing so-called corrugated or trapezoidal- profiled metal sheet, wherein a pre-cut and flat metal sheet can be used as a starting blank, for instance.
  • the end product i.e. the ul ⁇ timate profiled metal sheet 100 leaving the last sha ⁇ ping station 10 in the mill line, may present, for in ⁇ stance, upper flanges 101, lower flanges 102 and web- parts 103 connecting said flanges 101 and 102.
  • the side edges 104 and 105 of the metal sheet 100 may have any one of a number of shapes, but in the illustrated embo ⁇ diment the side edges are flat.
  • each shaping station 10 includes a number of groups 31-34 and 41-44 of profiling or shaping rolls.
  • the roll groups 31-34 and 41-44 will generally include a plurality of shaping rolls which are journalled for free rotation, i.e. are freely rotating, and the design and configuration of the roll groups will naturally de- pend on the nature of the profiled metal sheet to be produced.
  • the roll group 31 includes the shaping rolls 31a-31e
  • the roll group 33 includes the shaping rolls 33a-33e
  • the roll group 41 includes the shaping rolls 41a-41g
  • the roll group 43 includes the shaping rolls 43a-43e.
  • shaping rolls For the sake of simplicity, all rolls in a shaping sta- tion have been called shaping rolls, even though some rolls serve mainly as pressure or holding-up rolls. As will be understood, the groups may also include sepa ⁇ rate edge-shaping rolls.
  • the shaping rolls are carried on support axles 50 and support brackets 51, wherein the support brackets 51 are connected to one of the beams 11 or 12, for in ⁇ stance by means of screws 52.
  • shaping rolls for instance the rolls 41c-41e, may be carried on a common support axle 50, although, if desired, it is also possible, of course, to provide a separate support axle 50 for each shaping roll, as illustrated, for instance, with the shaping roll 31c.
  • the shaping rollers are journalled for free rotation relative to the support axle and/or relative to the support bracket. When a support axle carries shaping rolls which have various diameters, these rolls must be journalled for individual rotation on the support axle, so as to avoid slipping against the metal sheet.
  • the number of diameters presented by the shaping rolls and said positioning of the shaping rolls will, of course, depend on the shape to which the metal sheet is to be profiled and also on the position of the shaping station in the roll mill.
  • a metal-sheet advancing station 60 includes a driven, rotatable feed roller 61 which is positioned beneath the plane in which the metal sheet 100 is advanced and which has a rotational axle 62 which extends transver- sely to the advancing direction A of the metal sheet 100.
  • the metal-sheet feed roller 61 is journalled on journal bearings 63 and 74 for rotation relative to the stand 2. The position of the roller 61 in a vertical sense is adjusted so that the peripheral surface of the roller will be in contact with the undersurface of the metal sheet 100 in the region of the lowermost parts of the metal sheet, e.g. with the bottom flanges 102.
  • Driving of the roller 61 is effected, for instance, by a toothed wheel 65 which is non-rotatably connected to the feed roller 61.
  • a toothed wheel 65 which is non-rotatably connected to the feed roller 61.
  • all rollers 61 can be driven for rotation in a manner to advance the metal sheet 100 in the direction of the arrow A.
  • the toothed belts 66 are tensioned by means of tension rollers 67.
  • the metal-sheet advancing station or feed station 60 also includes a counter-holding device 70 positioned above the metal sheet 100.
  • the holding device 70 inclu ⁇ des a bar 71 which extends transversely to the direc ⁇ tion A in which the metal sheet is advanced and is car ⁇ ried by the stand 2.
  • the bar 71 carries two slide pie- ces 72 which are provided with an opening for the bar 71 and with a recess for accommodating guide wedges 73 mounted on the bar 71.
  • the slide pieces 72 are able to slide in the direction of the longitudinal axis of the bar 71.
  • Each of the slide pieces 72 carries a holder 74 for holding a freely rotatable, i.e. freely rolling pres ⁇ sure roller 75 which is supported by the holder 74 via a support axle 76.
  • the pressure roller 75 is journalled for rotation relative to the support axle 76 and/or the support axle 76 is journalled for rotation relative to the holder 74.
  • the slide pieces 72 carry an attachment 78 for an actuating device 79.
  • the actuating devices 79 comprise two se ⁇ ries-connected and double-acting pressure-medium pis ⁇ ton-cylinder devices 80, 81, for instance compressed air piston-cylinder devices, which enable the slide pi ⁇ eces 72 to move relatively to the bar 71, such as to enable the pressure rollers 75 to be set in different positions. Either one or both of the piston-cylinder devices 80 and 81 can be activated, depending on the desired distance of movement.
  • the bar 71 is urged downwards by the spring devices 82, for instance in the form of pressure springs, so as to enable an adjustment to be made when the thickness of the metal sheet 100 to be advanced varies, i.e. the spring devices 82 will ensure that the pressure rollers 75 will press against the metal sheet 100 so as to urge or hold the metal sheet against or in contact with the feed roller 61.
  • the feeding sta- tions are provided with stop means so adjusted that they function to prevent the spring devices 82 from ur ⁇ ging the pressure rollers 75 into direct abutment with the feed rollers 61, such that a clearance which is smaller than the smallest thickness of the metal sheet to be profiled will always be present when no metal sheet is present in the gap.
  • the inventive shaping machine operates in the following manner.
  • the shaping stations 10 of the machine 1 are revolved so as to bring the roll groups 31 and 41 to their use or working position, as illustrated in Figures 1 and 2.
  • the actuating devices 79 of the metal-sheet feeding stations 60 are acti ⁇ vated, such that the pressure rollers 75 will move along the bar 71 until said rollers are positioned within a region in which the underside of the metal sheet 100 will abut the feed roller 61, i.e. so that the pressure rollers 75 are located on the upper side of the lower flanges 102, as illustrated in Figure 4.
  • the pressure rollers 75 are therewith able to urge the metal sheet 100 against the feed roller 61, under the action of the spring devices 82, such as to ensure that the metal sheet will be advanced reliably.
  • the shaping stations 10 of the machine 1 are revolved so that the roll groups 33 and 43 are located in their use or working posi ⁇ tions, as illustrated in Figure 5.
  • the actuating de ⁇ vices 79 of the metal-sheet feeding stations 60 are ac ⁇ tivated so that the pressure rollers 75 move along the bar 71 until the pressure rollers are positioned within a region in which the underside of the metal sheet 100' is in abutment with the feed roller 61, i.e. a position in which the pressure rollers 75 are located on the up ⁇ per side of the lower flanges 102' , as illustrated in Figure 7.
  • the pressure rollers 75 are therewith able to urge the metal sheet 100' against the feed roller 61, under the action of the spring devices 82, so as to en ⁇ sure that the metal sheet will be advanced reliably.
  • the first metal-sheet fee- ding station 60A may be simplified, if so desired, and provided with stationary pressure rollers 75.
  • inventive shaping ma- chine can be used to produce a large number of diffe ⁇ rent kinds of profiles in addition to the aforesaid trapezoidal profile, by providing the shaping stations 10 with the requisite shaping rolls to this end.
  • the driven feed rollers 61 may be positio ⁇ ned above the metal sheet 100 while the pressure rol ⁇ lers 75 and components associated therewith are placed beneath the metal sheet 100.
  • the feed rollers 61 may be covered with rubber or some other appropriate material which will increase the frictional contact of the rollers with the metal sheet 100.
  • the bar 71 need not necessarily be circular in cross- section, but may have a square, rectangular cross-sec ⁇ tion or some other suitable cross-section.
  • actuating device 79 comprise one or more pressure-medium piston-cylinder devices, but may have the form, for instance, of mechanical movement-ac ⁇ tivating screws or the like.
  • the width dimensions of the pressure rollers 75 may, of course, be varied as required, as can also the pressure at which they bear against the metal sheet 100.
  • the toothed belts 66A, 66B, 66C, etc. may also be re ⁇ placed with, for instance, chains or V-belts, provided that the toothed wheels 65 concerned will be replaced in an analogous fashion.
  • metal- sheet feed stations 60 may also be varied as required.

Abstract

A machine (1) for shaping profiled metal sheet (100) includes a number of shaping stations (10A, 10B, etc.). The shaping stations include an upper beam (11) and lower beam (12). The beams (11, 12) carry groups (31 - 34 and 41 - 44) of rotatable shaping rolls (31a, 41a, etc). By revolving the beams in different positions different profile variants can be produced. Metal-sheet feed stations (60A, 60B, etc.) are located between the shaping stations (10). The feeding stations (60) include a driven feed roller (61) and pressure rollers (75). Actuating devices (79) are arranged to move the pressure rollers (75) in a direction transversely to the direction (A) in which the metal sheet is advanced and to a position within a region in which the metal sheet (100) of the currently produced profile variant abuts the feed roller (61).

Description

A PROFILING MACHINE
The present invention relates to a machine for shaping profiled metal sheet with the aid of rolls, for in¬ stance in the manufacture of trapezoidal-profiled thin metal sheet for building construction purposes, said machine including a number of shaping stations which are arranged sequentially in the direction in which the metal sheet is advanced and which include an upper beam positioned above the metal sheet and a lower beam posi¬ tioned beneath said sheet, wherein the beams are mounted for rotation about an axle which extends trans¬ versely to the advancing direction of the metal sheet, wherein said beams carry at least two groups of rotata- ble shaping rolls, wherein said groups of rolls are directed in different directions on respective beams such that when rotating the beam to different positions of rotation, one roll group at a time will be located i- n active/operative position to enable a profile va¬ riant to be produced, at the same time as the remaining roll group or roll groups on the beam is/are located in an inactive position, wherein the metal sheet is advan¬ ced through the shaping machine by means of a number of metal-sheet feed stations which are located between at least some of the shaping stations, wherein the metal- sheet feeding stations include a rotatable, driven feed roller positioned on one side of the profiled metal sheet, and wherein at least one pressure roller is pro- vided for urging or holding the metal sheet in contact with the feed roller.
A machine of this kind is described in WO 89/03260 (SE 8703922-8). Roll forming or roller shaping machines of this kind in which each shaping or forming station includes groups of rolls which are directed in diffe¬ rent directions and which at times occupy an operative position and at times an inactive, rest position, de¬ pending on the type of profile or variant of profile to be produced, have certain limitations with respect to the possibility of advancing the metal sheets through the machine in a simple fashion.
The shaping rolls normally have different diameters and the rolls tend to slip and slide against the metal sheet when driven at the same angular speed. It is therefore beneficial to arrange the rolls so that they will rotate freely.
At the same time, it has also been found beneficial to stagger or displace the rolls to some extent in the feed direction of the metal sheet. This is done so that the centre roll, or a number of the centermost rolls, engage the advancing metal sheet first and thereby be¬ gin to profile the metal sheet before the outer rolls of a shaping station begin shaping the metal sheet.
In order to achieve purposeful and effective feed of the metal sheet through the machine or mill, a number of separate feed stations have been placed along the shaping machine, with respect to the aforesaid aspects, these feed stations being positioned between the sha¬ ping stations. In this case, the feed stations do not have a profiling activity, but are merely responsible for advancing the metal sheet. Such separate feed sta¬ tions are described in WO 89/03260.
Unfortunately, these separate feed stations are relati¬ vely complicated when the shaping machine is one in which a switch can be made between the various types of profiles or shapes produced, since it is then necessary to adapt the feed stations to the nature of the profile concerned. The shaping machine described in WO 89/03260 includes a plurality of feed stations disposed between the shaping stations. The feed stations include a driven, rotatable feed roller which is positioned on one side of the pro¬ filed metal sheet, at the same time as different groups of freely-rotating pressure rollers are mounted on a rotatable beam so as to enable adjustments to be made to the positions of the pressure rollers when producing different kinds of profiles in the metal sheet. The aforementioned rotatable beam thus enables requisite pressure rollers to be revolved into active position in principly the same method as the shaping rolls concer¬ ned are revolved into active position in the shaping stations. Unfortunately, the construction of such a ma¬ chine is relatively complicated and the metal-sheet feed stations have a negative influence on the length measurements of the machine, since rotation of the ro¬ tatable beam in respective feed stations requires a re- latively large amount of space.
The object of the present invention is to provide a shaping machine of the kind described in the introduc¬ tion in which the metal-sheet feed" stations are con- struσted in a manner to enable adjacent shaping sta¬ tions to be spaced a short distance apart, and in which the feed stations have an extremely simple construc¬ tion. This object is achieved with the inventive metal- shaping machine having the characterizing features set forth in the following Claims.
The inventive shaping machine has a very simple con¬ struction and the feed stations require only a relati¬ vely small amount of space and thus have only a small influence on the length measurements of the machine.
Adjustment to the feed stations when switching between different types of profile can be effected very simply and very quickly. The inventive machine also affords economical advantages.
The invention will now be described in more detail with reference to exemplifying embodiments thereof and also with reference to the accompanying drawings, in which Figure 1 is a schematic side view of a section of the inventive machine; Figure 2 is a cross-sectional view of the machine through a shaping station, i.e. a view taken on the line II-II in Figure 1; Figure 3 illustra¬ tes the profiled metal sheet exemplified in Figure 2 in a freely placed state; Figure 4 is a cross-sectional view of a feeding station of said machine, i.e. a sec- tional view taken on the line IV-IV in Figure 1; Figure 5. illustrates the shaping station of Figure 2 when said station is adjusted to produce an alternative kind of profile; Figure 6 illustrates the profiled metal sheet exemplified in Figure 5 in a freely placed state; and Figure 7 illustrates the feeding station of Figure 4 but with the station adjusted for feeding the profiled metal sheet illustrated in Figures 5 and 6.
The inventive machine 1 includes a plurality of shaping stations 10A, 10B, etc., which are disposed sequenti¬ ally in the direction of advancement of the metal sheet 100, i.e. its feeding direction, and of which only two such stations are shown in Figure 1. The number of sha¬ ping stations 10 required is depending on the number of stages required to shape the metal sheet 100 to a desi¬ red final profile.
The inventive machine 1 also includes a number of se¬ quentially arranged metal-sheet advancing or feeding stations 60A, 60B, 60C, etc., of which only three sta¬ tions are shown in Figure 1. The number of metal-sheet advancing or feeding stations 60 provided in the mill may, of course, be varied as desired, in which regard the smallest length of the metal sheets 100, for in¬ stance, will be an important parameter. Thus, it is possible, for instance, to arrange, e.g., two feeding stations 60 immediately after one another, or to ar¬ range two shaping stations 10 immediately after one another.
The machine 1 includes a machine stand 2 which carries remaining machine components. The stand 2 is shown only fragmentarily in Figures 2, 4, 5 and 7. The shaping stations 10 and the metal-sheet advancing stations 60 are thus carried by the stand 2.
A shaping station 10 includes an upper beam 11 which is positioned above the plane in which the sheet metal 100 is advanced, and a lower beam 12 which is positioned beneath the sheet-metal advancing plane. The upper beam 11 can be rotated about its geometric axis on an upper axle 13, and the lower beam 12 can be rotated about its geometric axis on a lower axle 14, wherein said axles extend transversely to the direction in which the sheet metal 100 is advanced through the machine. The direc- tion in which the sheet metal 100 is advanced through the machine is indicated by an arrow A in Figure 1. The upper beam 11 is journalled relative to the stand 2 on journal bearings 15, 16 and the lower beam 12 is jour¬ nalled relative to the stand 2 on journal bearings 17, 18. The bearings 15 and 16 are acted upon by a spring device 19, which may have the form of a pressure spring, so that adjustments can be made in response to variations in thickness of the metal sheet 100 to be profiled. The beams 11 and 12 can be locked in their various swing positions by means of a locking device
20. In the case of the illustrated embodiment, the be- ams have four different revolving positions, although it will be understood that the number of positions to which the beams are rotated can be varied from two and upwards, depending on the number of types of profile that the machine 1 shall be capable of producing.
The illustrated machine 1 is designed so as to be capa¬ ble of producing so-called corrugated or trapezoidal- profiled metal sheet, wherein a pre-cut and flat metal sheet can be used as a starting blank, for instance. As illustrated in Figure 3, the end product, i.e. the ul¬ timate profiled metal sheet 100 leaving the last sha¬ ping station 10 in the mill line, may present, for in¬ stance, upper flanges 101, lower flanges 102 and web- parts 103 connecting said flanges 101 and 102. The side edges 104 and 105 of the metal sheet 100 may have any one of a number of shapes, but in the illustrated embo¬ diment the side edges are flat.
For the purpose of producing the aforesaid profiles, the shape of which may, of course, be varied within wide limits, each shaping station 10 includes a number of groups 31-34 and 41-44 of profiling or shaping rolls.
The roll groups 31-34 and 41-44 will generally include a plurality of shaping rolls which are journalled for free rotation, i.e. are freely rotating, and the design and configuration of the roll groups will naturally de- pend on the nature of the profiled metal sheet to be produced.
For example, in the illustrated embodiment, the roll group 31 includes the shaping rolls 31a-31e, the roll group 33 includes the shaping rolls 33a-33e, the roll group 41 includes the shaping rolls 41a-41g and the roll group 43 includes the shaping rolls 43a-43e.
For the sake of simplicity, all rolls in a shaping sta- tion have been called shaping rolls, even though some rolls serve mainly as pressure or holding-up rolls. As will be understood, the groups may also include sepa¬ rate edge-shaping rolls.
The shaping rolls are carried on support axles 50 and support brackets 51, wherein the support brackets 51 are connected to one of the beams 11 or 12, for in¬ stance by means of screws 52.
Several shaping rolls, for instance the rolls 41c-41e, may be carried on a common support axle 50, although, if desired, it is also possible, of course, to provide a separate support axle 50 for each shaping roll, as illustrated, for instance, with the shaping roll 31c. The shaping rollers are journalled for free rotation relative to the support axle and/or relative to the support bracket. When a support axle carries shaping rolls which have various diameters, these rolls must be journalled for individual rotation on the support axle, so as to avoid slipping against the metal sheet.
The number of diameters presented by the shaping rolls and said positioning of the shaping rolls will, of course, depend on the shape to which the metal sheet is to be profiled and also on the position of the shaping station in the roll mill.
A metal-sheet advancing station 60 includes a driven, rotatable feed roller 61 which is positioned beneath the plane in which the metal sheet 100 is advanced and which has a rotational axle 62 which extends transver- sely to the advancing direction A of the metal sheet 100. The metal-sheet feed roller 61 is journalled on journal bearings 63 and 74 for rotation relative to the stand 2. The position of the roller 61 in a vertical sense is adjusted so that the peripheral surface of the roller will be in contact with the undersurface of the metal sheet 100 in the region of the lowermost parts of the metal sheet, e.g. with the bottom flanges 102.
Driving of the roller 61 is effected, for instance, by a toothed wheel 65 which is non-rotatably connected to the feed roller 61. By means of an arrangement of, for instance, toothed belts 66A, 66B, 66C, etc., and a drive motor (not shown), all rollers 61 can be driven for rotation in a manner to advance the metal sheet 100 in the direction of the arrow A. The toothed belts 66 are tensioned by means of tension rollers 67.
The metal-sheet advancing station or feed station 60 also includes a counter-holding device 70 positioned above the metal sheet 100. The holding device 70 inclu¬ des a bar 71 which extends transversely to the direc¬ tion A in which the metal sheet is advanced and is car¬ ried by the stand 2. The bar 71 carries two slide pie- ces 72 which are provided with an opening for the bar 71 and with a recess for accommodating guide wedges 73 mounted on the bar 71. The slide pieces 72 are able to slide in the direction of the longitudinal axis of the bar 71.
Each of the slide pieces 72 carries a holder 74 for holding a freely rotatable, i.e. freely rolling pres¬ sure roller 75 which is supported by the holder 74 via a support axle 76. The pressure roller 75 is journalled for rotation relative to the support axle 76 and/or the support axle 76 is journalled for rotation relative to the holder 74.
Mounted on the ends of the bar 71 is an attachment 77, and the slide pieces 72 carry an attachment 78 for an actuating device 79. In the case of the illustrated embodiment, the actuating devices 79 comprise two se¬ ries-connected and double-acting pressure-medium pis¬ ton-cylinder devices 80, 81, for instance compressed air piston-cylinder devices, which enable the slide pi¬ eces 72 to move relatively to the bar 71, such as to enable the pressure rollers 75 to be set in different positions. Either one or both of the piston-cylinder devices 80 and 81 can be activated, depending on the desired distance of movement.
The bar 71 is urged downwards by the spring devices 82, for instance in the form of pressure springs, so as to enable an adjustment to be made when the thickness of the metal sheet 100 to be advanced varies, i.e. the spring devices 82 will ensure that the pressure rollers 75 will press against the metal sheet 100 so as to urge or hold the metal sheet against or in contact with the feed roller 61. Although not shown, the feeding sta- tions are provided with stop means so adjusted that they function to prevent the spring devices 82 from ur¬ ging the pressure rollers 75 into direct abutment with the feed rollers 61, such that a clearance which is smaller than the smallest thickness of the metal sheet to be profiled will always be present when no metal sheet is present in the gap.
The inventive shaping machine operates in the following manner. When the machine is set-up to produce the metal sheet 100 illustrated in Figure 3, the shaping stations 10 of the machine 1 are revolved so as to bring the roll groups 31 and 41 to their use or working position, as illustrated in Figures 1 and 2. The actuating devices 79 of the metal-sheet feeding stations 60 are acti¬ vated, such that the pressure rollers 75 will move along the bar 71 until said rollers are positioned within a region in which the underside of the metal sheet 100 will abut the feed roller 61, i.e. so that the pressure rollers 75 are located on the upper side of the lower flanges 102, as illustrated in Figure 4. The pressure rollers 75 are therewith able to urge the metal sheet 100 against the feed roller 61, under the action of the spring devices 82, such as to ensure that the metal sheet will be advanced reliably.
When setting-up the machine to produce the metal sheet 100' illustrated in Figure 6, the shaping stations 10 of the machine 1 are revolved so that the roll groups 33 and 43 are located in their use or working posi¬ tions, as illustrated in Figure 5. The actuating de¬ vices 79 of the metal-sheet feeding stations 60 are ac¬ tivated so that the pressure rollers 75 move along the bar 71 until the pressure rollers are positioned within a region in which the underside of the metal sheet 100' is in abutment with the feed roller 61, i.e. a position in which the pressure rollers 75 are located on the up¬ per side of the lower flanges 102' , as illustrated in Figure 7. The pressure rollers 75 are therewith able to urge the metal sheet 100' against the feed roller 61, under the action of the spring devices 82, so as to en¬ sure that the metal sheet will be advanced reliably.
It should be mentioned that since the metal sheet 100 is normally flat initially, the first metal-sheet fee- ding station 60A may be simplified, if so desired, and provided with stationary pressure rollers 75.
It will be understood from the above description that when resetting the machine by temporarily releasing the locking devices 20 and therewith rotating the beams 11 and 12 to revolve two mutually coacting groups of sha¬ ping rolls into active position, the pressure rollers 75 of the sheet-metal feed stations 60 are moved, at the same txme, with the aid of the actuating devices 79 in a manner such that said pressure rollers 75 will be located within a region of the metal sheet 100 in which the profile variant to be produced abuts the feed rol¬ ler 61, thereby enabling the pressure rollers 75 to press the metal sheet against the feed roller 61 and thereby ensure that the metal sheet will be advanced reliably.
It will be understood that the inventive shaping ma- chine can be used to produce a large number of diffe¬ rent kinds of profiles in addition to the aforesaid trapezoidal profile, by providing the shaping stations 10 with the requisite shaping rolls to this end.
If desired, the driven feed rollers 61 may be positio¬ ned above the metal sheet 100 while the pressure rol¬ lers 75 and components associated therewith are placed beneath the metal sheet 100.
The feed rollers 61 may be covered with rubber or some other appropriate material which will increase the frictional contact of the rollers with the metal sheet 100. The bar 71 need not necessarily be circular in cross- section, but may have a square, rectangular cross-sec¬ tion or some other suitable cross-section.
Neither need the actuating device 79 comprise one or more pressure-medium piston-cylinder devices, but may have the form, for instance, of mechanical movement-ac¬ tivating screws or the like.
It is also possible to use only one single pressure roller 75 in a sheet-metal feeding station 60, in which case only one slide piece 72 and only one actuating de¬ vice 79 will be required.
It should also be mentioned that the width dimensions of the pressure rollers 75 may, of course, be varied as required, as can also the pressure at which they bear against the metal sheet 100.
The toothed belts 66A, 66B, 66C, etc., may also be re¬ placed with, for instance, chains or V-belts, provided that the toothed wheels 65 concerned will be replaced in an analogous fashion.
It will also be understood that the number of metal- sheet feed stations 60 may also be varied as required.
The equipment arranged peripherally around the machine has not been described, since such equipment will be obvious to those skilled in this art.
The invention is not restricted to the illustrated and described embodiments thereof, since modifications and changes are conceivable within the scope of the follo- wing Claims.

Claims

1. A machine for shaping profiled metal sheet with the aid of rolls, for instance in the manufacture of tra- pezoidal-profiled thin metal sheet for building con¬ struction purposes, said machine (1) including a number of shaping stations (10A, 10B, etc.) which are arranged sequentially in the direction (A) in which the metal sheet (100) is advanced and which include an upper beam (11) positioned above the metal sheet (100) and a lower beam (12) positioned beneath said metal sheet, wherein said beams (11, 12) are mounted for rotation about an axle (13 and 14 respectively) which extends transver¬ sely to the advancing direction (A) of the metal sheet, wherein said beams (11, 12) carry at least two groups
(31-34 and 41-44) of rotatable shaping rolls (31a, 41a, etc.), wherein said groups of rolls 31-34 and 41-44) are directed in different directions on respective beams (11 and 12) such that when rotating the beam to different positions of rotation, one roll group at a time will be located in an active/operative position to enable a profile variant to be produced, at the same time as the remaining roll group or groups on the beam is/are located in an inactive position, wherein the me- tal sheet (100) is advanced through the shaping machine (1) by means of a number of metal-sheet feed stations (60A, 60B, etc.) which are located between at least some of the shaping stations (10), wherein the metal- sheet feeding stations (60) include a rotatable, driven feed roller (61) positioned on one side of the profiled metal sheet (100), and wherein at least one pressure roller (75) is provided for urging or holding the metal sheet (100) in contact with the feed roller (61), c h¬ a r a c t e r i z e d by en actuating device (79) which is arranged to move the pressure roller (75) in a direction transversely to the direction (A) in which the metal sheet is advanced and to a position within a region in which the metal sheet (100) of the currently produced profile variant abuts the feed roller (61), thereby enabling the pressure roller (75) to urge the metal sheet (100) into contact with the feed roller
(61) and therewith ensure that the metal sheet will be advanced reliably through the shaping machine (1).
2. A machine according to Claim 1, c h a r a c t e r- i z e d by a spring device (82) which is arranged to bring the pressure roller (75) into pressing abutment with the metal sheet (100).
3. A machine according to Claim 1 or 2, c h a r a c- t e r i z e d in that the pressure roller (75) is slideable along a bar (71) which extends transversely to the advancing direction (A) of the metal sheet.
4. A machine according to any one of Claims 1-3, c h- a r a c t e r i z e d in that the actuating device (79) includes at least one pressure-medium piston-cylinder (80, 81).
5. A machine according to any one of Claims 2-4, c h- a r a c t e r i z e d in that it includes stop means which is arranged to prevent the spring devices (82) from pressing the pressure roller (75) into abutment with the feed roller (61).
6. A machine according to any one of Claims 1-5, c h¬ a r a c t e r i z e d in that the pressure roller (75) is freely rotatable.
PCT/SE1991/000646 1990-10-01 1991-09-26 A profiling machine WO1992005894A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9003123-8 1990-10-01
SE9003123A SE467298B (en) 1990-10-01 1990-10-01 Roll Forming Machine

Publications (1)

Publication Number Publication Date
WO1992005894A1 true WO1992005894A1 (en) 1992-04-16

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ID=20380511

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
AU (1) AU8712891A (en)
SE (1) SE467298B (en)
WO (1) WO1992005894A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007623A1 (en) * 1992-10-07 1994-04-14 Korsträsk Mekaniska Ab Setting device for shape rolling mill
WO2003041887A1 (en) * 2001-09-26 2003-05-22 Claes-Håkan Lundgren Med Firma Method of forming metal sheet
CN110202038A (en) * 2019-06-05 2019-09-06 四川鸿舰重型机械制造有限责任公司 The milling train of cold rolling inner cover unicast forming
CN110899424A (en) * 2019-11-30 2020-03-24 江西远大保险设备实业集团有限公司 Automatic molding of ribbed shelf of metal furniture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004375A1 (en) * 1986-01-17 1987-07-30 Trond Nilsen Machine for adjustable longitudinal corrugating of sheet materials
WO1988001208A1 (en) * 1986-08-15 1988-02-25 Hoeglund Nils Goeran Machine for corrugating sheet metal or the like
WO1989003260A1 (en) * 1987-10-09 1989-04-20 Dobel Ab Rolling mill machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004375A1 (en) * 1986-01-17 1987-07-30 Trond Nilsen Machine for adjustable longitudinal corrugating of sheet materials
WO1988001208A1 (en) * 1986-08-15 1988-02-25 Hoeglund Nils Goeran Machine for corrugating sheet metal or the like
WO1989003260A1 (en) * 1987-10-09 1989-04-20 Dobel Ab Rolling mill machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007623A1 (en) * 1992-10-07 1994-04-14 Korsträsk Mekaniska Ab Setting device for shape rolling mill
WO2003041887A1 (en) * 2001-09-26 2003-05-22 Claes-Håkan Lundgren Med Firma Method of forming metal sheet
CN110202038A (en) * 2019-06-05 2019-09-06 四川鸿舰重型机械制造有限责任公司 The milling train of cold rolling inner cover unicast forming
CN110899424A (en) * 2019-11-30 2020-03-24 江西远大保险设备实业集团有限公司 Automatic molding of ribbed shelf of metal furniture

Also Published As

Publication number Publication date
AU8712891A (en) 1992-04-28
SE9003123L (en) 1992-04-02
SE9003123D0 (en) 1990-10-01
SE467298B (en) 1992-06-29

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