VARIABLE ROLL-FORMING MACHINE

Description

Object of the Invention

[0001] The present invention belongs to the field of industry, primarily to the automotive field. In manufacturing extruded gum and rubber profiles for sealing the doors and windows, grooved, steel sheet metal U-shaped profiles are introduced to provide rigidity. Tools for each profile model are used today for bending these steel profiles.

[0002] The object of the present invention is a machine that bends these profiles with the base width, angles of the flanges, and length thereof being variable, such that different tools are not required for a large number of profile types, since the machine can be reconfigured to make several possible models. This regulation is done automatically and precisely by means of mechanisms moved by servo motors.

Background of the Invention

[0003] Tools for each profile model are used today for bending these steel profiles (strips) . A machine for manufacturing and bending metal profiles is known from published patent application US 2016/023254 A1.

Description of the Invention

[0004] The machine is made up of a compendium of mechanisms and modules which together form what is referred to as the machine for the variable bending of U-shaped profiles.

[0005] In a first inventive aspect, the present invention provides a machine for manufacturing metal profiles by means of rollers, comprising:

i) an inlet station configured for receiving and straightening a planar sheet metal, wherein the inlet station in turn comprises

• a straightening and guiding system for the planar sheet comprising a plurality of rollers arranged in two offset rows and assembled with their rotation shafts in the vertical position on a carriage that can be moved transversely with respect to the forward movement direction of the sheet, a spindle configured for moving the carriage, and a servomotor configured for operating the spindle, regulating the distance between the rows of rollers, and
• an asymmetry system configured for transversely moving the assembly of the straightening system, comprising a carriage on which the straightening system is assembled, a spindle configured for moving the carriage and a servomotor configured for operating the spindle, such that it allows moving the straightening system with respect to the center of the machine, thereby regulating the profile flange length;

ii) a bending station configured for bending the profile flanges in a symmetrical manner, comprising

• a profile width regulation system comprising one or more profile width regulation stages, wherein each stage comprises at least one pair of plates arranged coaxially and assembled on drive shafts,
  • wherein each stage of the profile width regulation system further comprises a transverse carriage, assembled in a sliding manner on transverse shafts and configured for pushing the plates along the drive shafts such that the plates move closer to or farther away from one another, and a spindle configured for moving the carriage,
  • wherein each stage of the profile width regulation system comprises a plurality of springs arranged between each pair of plates and configured for reducing clearances between the plates and the profile,
  • wherein the spindles of each stage of the profile width regulation system are operated by means of gear rings meshing with a worm screw, which is attached to a shaft common to all the stages of the profile width regulation system,
• a defined-angle bending system arranged above the profile width regulation system, comprising one or more defined-angle bending stages, wherein each stage comprises a central plate and a pair of side plates arranged on each side of the central plate and assembled coaxially on a rotating shaft,
  • wherein each stage of the defined-angle bending system comprises a plurality of springs arranged between each pair of side plates and friction discs,
  • wherein each stage of the defined-angle bending system comprises pushing elements configured for pushing the side plates such that the plates move closer to or farther away from one another, and spindles configured for moving the pushing elements,
  • wherein the spindles of each stage of the defined-angle bending system are attached by means of an elastic coupling,

iii) a profile web creasing station, comprising a profile web M-shape creasing system, in turn comprising a first roller and a second roller arranged below the first roller, wherein the distance between the first roller and the second roller can be regulated by means of a set of spindles and gear rings operated by a servomotor;
characterized in that the machine further comprises

iv) a profile flange asymmetrical bending station, in turn comprising

• a profile width regulation system comprising at least the same elements as the profile width regulation system of the bending station,
• a variable-angle bending system arranged above the profile width regulation system, comprising a central plate and a pair of forming plates arranged on each side of the central plate and assembled coaxially on a rotating shaft,
  • wherein the variable-angle bending system comprises a plurality of springs arranged between each pair of forming plates, and friction discs,
  • wherein the variable-angle bending system comprises pushing elements configured for pushing the forming plates such that the plates move closer to or farther away from one another, and spindles configured for moving the pushing elements,
  • wherein the spindles are operated independently by means of servomotors, such that the angle of each profile flange can be independently adjusted.

[0006] In a particular embodiment, the machine further comprises a side guiding system with side strip guides assembled on carriages, wherein the carriages are moved by means of spindles operated by servomotors.

[0007] In a particular embodiment, the machine further comprises a hinged attachment configured for attaching an upper part of the machine and a lower part of the machine, wherein

• the upper part of the machine comprises at least the defined bending system, the variable-angle bending system, and the first roller of the profile web creasing station, and
• the lower part of the machine comprises at least the profile width regulation system, the profile width regulation system of the station for the asymmetrical bending, and the second roller of the profile web creasing station.

[0008] In a particular embodiment, the profile web creasing station comprises after the M-shape creasing system a profile width regulation system and a variable-angle bending system for correcting the shape of the profile after passing through the profile web creasing station.

[0009] In a particular embodiment, the machine comprises a control system which can be operated by means of a control panel.

[0010] In a particular embodiment, the machine comprises a power supply system.

[0011] In a particular embodiment, the machine comprises a drive mechanism comprising extendable universal drives operated by a geared motor.

[0012] In a particular embodiment, the machine comprises intermediate guiding means arranged between the bending station and the profile flange asymmetrical bending station.

[0013] In a particular embodiment, the plurality of rollers of the straightening and guiding system for the planar sheet are arranged in two rows, the rollers facing one another and their rotation shafts being aligned according to a transverse direction with respect to the forward movement direction of the sheet, and assembled with their rotation shafts in the vertical position on a carriage that can be moved transversely with respect to the forward movement direction of the sheet.

[0014] The elements comprising the machine are described below:
Strip inlet, guiding, and straightening module. This module is formed by two rows of rollers. One row is offset with respect to the other by a distance equal to half the distance between rollers. The distance between these rows of rollers marks the width of the strip and is variable by means of right- and left-handed threaded spindles attached by a coupling. The movement is performed by means of a servomotor. These rows of rollers are assembled on carriages sliding on linear guides.

[0015] Profile asymmetry module. The profiles can be symmetrical or asymmetrical. To that end, the strip straightening module is assembled on a carriage which moves transversely to the strip movement direction. If this carriage is moved with respect to the center of the machine, the longitudinal axis, the profile will be asymmetrical and one flange of the U-shape will be longer than the other one. The movement of this carriage is performed by means of a spindle and a servomotor.

[0016] Profile width regulation module. Facing pairs of plates assembled on drive shafts are used to determine the width of the profiles. The number of these pairs depends on the thickness and the strength of the strip. A higher strip bending strength will necessitate there being more pairs of rollers. The transverse distance between these plates is variable by means of right- and left-handed threaded spindles. The spindles are assembled on transverse carriages guided on shafts with linear bushings, referred to as pushing elements (Figure 8). Said pushing elements will act on bearings with respect to the plates. Springs are incorporated between the plates to prevent clearances. All these spindles are attached to one another by means of gear rings and worm screws so as to be moved by a servomotor. All these worm screws are on a single shaft. All the plates of this module therefore open and close at the same time, maintaining the same width. These plates are in the lower part of the formation. The U-shape will be manufactured in an inverted position.

[0017] Side strip guiding system. Side strip guides are installed between the first rollers, from the first to the third. These guides prevent the strip, which is not yet altogether formed, from moving laterally. These guides are assembled on carriages which move by means of spindles moved by a servomotor on either side.

[0018] Defined-angle bending module. The sheet bending systems are assembled on the first lower plates which determine the width of the U-shape. This system is formed by a central plate pressing and holding the sheet. It is attached to the rotating shaft by means of a cotter pin and is placed in the longitudinal center of the machine. Two plates are arranged symmetrically on the sides thereof. These plates are driven by means of springs with friction discs. These plates impart the angle to the sheet according to the angle of each plate. The number of plates also depends on the thickness and the strength of the strip. The distance between these plates depends on the width of the base of the U-shape and it is considered the same as the distance of the lower plates. Regulation is likewise performed with the same system of pushing elements and right- and left-handed threaded spindles. These spindles are attached to one another by an elastic coupling and are moved by a servomotor, all at the same time.

[0019] Variable-angle bending modules. These modules are assembled on the lower plates defining the width of the profiles. They are formed by a central plate just like those that are assembled in the previous defined angle modules, which plate is also attached to the rotating shafts by means of a cotter pin and placed in the longitudinal center of the machine. The plates imparting the angle to the profiles are arranged on the sides of this plate. In this case, these plates do not have an angle, as the angle is imparted by moving these side plates closer to or farther away from the central plate, more or less pressing the profile against the lower plates. These side plates are driven by means of friction discs, clutches, and springs. These springs are driven by the central plate. The transverse movement of these plates is performed by the pushing elements by means of threaded spindles which are operated by servomotors. These spindles and motors are independent for each plate. The angle of the flanges of the U-shape can therefore be different.

[0020] M-shape creasing module. This module bends the web of the U-shape by means of a V-shaped roller acting against the lower rollers, which also together form a V-shape. The vertical movement of this roller is carried out by means of spindles and gear rings moved by a servomotor. When carrying out this shaping, the flanges of the U-shape open, so after this module there is a final bending module which uses a pair of variable bending pulleys.

[0021] The structure of these modules is split into two parts along the machine, such that the bending modules, which are in the upper part, are independent of the other modules. The structures of the two modules are attached to one another by means of hinges. The upper structure rotates with respect to the lower structure, and they are left separated for a possible intervention. This system is very practical in the event of maintenance and possible jams.

[0022] Drive module. All the shafts of the pulleys are moved by a gearbox and chain sprocket. The shafts of the drive box and the shafts of the pulleys are attached by extendable universal joints. The movement of this gearbox is operated by a variable speed geared motor.

[0023] There are arranged a distribution board and a control panel to control all the movements.

[0024] The present invention is a machine bending these profiles with the base width, angles of the flanges, and length thereof being variable, such that different tools are not required for a large number of profile types, since the machine can be reconfigured for making several possible models. This regulation takes place automatically and precisely by means of mechanisms moved by servomotors.

Description of the Drawings

[0025] 

Figure 1 shows a plan view of the machine.

Figure 2 shows an outer elevational view of the machine.

Figure 3 shows an internal view of the plan arrangement of the machine.

Figure 4 shows an inner elevational view of the arrangement.

Figure 5 shows a plan view of the strip straightening and guiding module.

Figure 6 shows an elevational view the strip straightening and guiding module.

Figure 7 shows the profile width regulation module.

Figure 8 shows the pushing element of plates.

Figure 9 shows the side strip guiding system.

Figure 10 shows the bending module with defined angle rollers.

Figure 11 shows the variable-angle bending module.

Figures 12 and 13 shows the M-shape bending module.

Figure 14 shows the upper roller opening system.

Detailed Description of the Invention

[0026] A particular example of a machine for the variable bending of U-shaped profiles for transforming a grooved steel strip into a profile is described below.

[0027] The machine is made up of a compendium of mechanisms and modules and grouped in four stations: inlet station (3.1), bending station (3.2), profile flange asymmetrical bending station (3.3) and profile web creasing station (3.4).

Inlet station (3.1):

[0028] The machine has at the inlet a strip inlet, guiding, and straightening module (Figures 3, 5 and 6). It is formed by two rows of rollers (5.1). One row is offset with respect to the other by a distance equal to half the distance between rollers. The distance between these rows of rollers marks the width of the strip and is variable by means of right- and left-handed threaded spindles (5.2) attached by a coupling (6.4). The movement is performed by means of a servomotor (5.4). These rows of rollers are assembled on carriages (5.3) sliding on linear guides.

[0029] Profile asymmetry module. The profiles can be symmetrical or asymmetrical. To that end, the strip straightening module is assembled on a carriage (6.1) which moves transversely to the strip movement direction. If this carriage is moved with respect to the center of the machine, i.e., the longitudinal axis, the profile will be asymmetrical and one flange of the U-shape will be longer than the other one. The movement of this carriage is performed by means of a spindle (6.2) and a servomotor (6.3).

Bending station (3.2):

[0030] The next module through which the strip passes is the profile width regulation module to determine the width of the profiles (Figures 7 and 8). Facing pairs of plates (7.1) assembled on drive shafts (7.2) are used to determine the width of the profiles. The number of these pairs depends on the thickness and the strength of the strip, as a higher bending strength of the strip will necessitate there being more pairs of rollers. The transverse distance between these plates is variable by means of right- and left-handed threaded spindles (7.3). The spindles are assembled on transverse carriages (7.5) guided on shafts (8.1) with linear bushings, referred to as pushing elements (Figure 8). Said pushing elements will act on bearings with respect to the plates. Springs are incorporated between the plates (7.4) to prevent clearances. All these spindles are attached to one another by means of gear rings (7.6) and worm screws (7.7) so as to be moved by a servomotor. All these worm screws are arranged on a single shaft (7.8). All the plates of this module thereby open and close at the same time, maintaining the same width. These plates are in the lower part of the arrangement. The U-shape will be manufactured in an inverted position.

[0031] The machine has a side strip guiding system (Figure 9). Side strip guides (9.1) are installed between the first rollers, from the first to the third. These guides prevent the strip (9.2), which is not yet altogether formed, from moving laterally. These guides are assembled on carriages (9.3) which move by means of spindles (9.4) moved by a servomotor on each side (9.5).

[0032] The machine integrates several plates forming the defined-angle bending module on the first lower plates which determine the width of the U-shape (Figure 10). This is the sheet bending system. This system is formed by a central plate (10.1) pressing and holding the sheet. It is attached to the rotating shaft (10.3) by means of a cotter pin and is placed in the longitudinal center of the machine. Two plates (10.2) are arranged symmetrically on the sides thereof. These plates are driven by means of springs (10.4) with friction discs (10.5). These plates impart the angle to the sheet according to the angle of each plate. The number of plates also depends on the thickness and the strength of the strip. The distance between these plates depends on the width of the base of the U-shape and it is considered the same as the distance of the lower plates. Regulation is likewise performed with the same system of pushing elements (10.6) and right- and left-handed threaded spindles (10.7). These spindles are attached to one another by an elastic coupling (10.8) and are moved by a servomotor, all at the same time.

Profile flange asymmetrical bending station (3.3):

[0033] The next modules through which the profile passes are the variable-angle bending modules (Figure 11). Like with the defined-angle bending (10.1), the central plate (11.1) is in charge of driving the strip attached to the rotating shaft (11.3). Variable angle forming plates (11.2) are arranged on both sides of this plate by means of the friction discs (11.5) and the springs (11.4), which are driven by the central plate. These plates form the angle by pushing the strip against the lower plates by means of the pushing elements (11.6) moved by the spindles (11.7), with the latter being operated by the servomotors (11.8) and (11.9). In this case, the spindles of the pushing elements are not attached and are operated by different servomotors. The profiles can thereby have different flange angles.

Profile web creasing station (3.4):

[0034] The profile finally passes through the M-shape creasing module (Figures 3, 12 and 13). This module bends the web of the U-shape by means of a V-shaped roller (12.1) acting against the lower rollers, which also together form a V-shape (12.2) . The vertical movement of this roller is carried out by means of spindles (12.4) and gear rings (12.3) moved by a servomotor (12.5). When carrying out this shaping, the flanges of the U-shape open, so after this module there is a final bending module which uses a pair of variable bending pulleys.

[0035] The structure of these modules is split into two parts along the machine, such that the bending modules, which are in the upper part (14.1), are independent of the other lower modules (14.2). The structures of the two modules are attached to one another by means of hinges (14.3). The upper structure rotates with respect to the lower structure, and they are left separated for a possible intervention. This system is very practical in the event of maintenance and possible jams. See Figure 14. All the shafts of the pulleys are moved by a gearbox and chain sprocket. The shafts of the drive box and the shafts of the pulleys are attached by extendable universal joints (1.1). The movement of this gearbox is operated by a variable speed geared motor. See Figure 1. This module is referred to as a drive module (1.2).

[0036] The stations (3.1, 3.2, 3.3, 3.4) defined above can be deactivated or disabled, such that they do not act on the profile by conventional means that are not shown.

[0037] There are arranged a distribution board and a control panel to control all the movements.

[0038] Taking into account the specific needs of a possible client, this machine could have slight modifications or additional modules, but always having the systems herein described. The modules are built with commercially available and specifically machined parts made of steel, aluminum, and bronze.

Claims

1. A machine (1) for manufacturing metal profiles by means of rollers, comprising:

i) an inlet station (3.1) configured for receiving and straightening a planar metal sheet, wherein the inlet station in turn comprises

- a straightening and guiding system (5) for the planar sheet comprising a plurality of rollers (5.1) arranged in two offset rows and assembled with their rotation shafts in the vertical position on a carriage (5.3) that can be moved transversely with respect to the sheet forward movement direction, a spindle (5.2) configured for moving the carriage (5.3), and a servomotor (5.4) configured for operating the spindle (5.2), regulating the distance between the rows of rollers (5.1), and

- an asymmetry system (6) configured for transversely moving the assembly of the straightening system (5), comprising a carriage (6.1) on which the straightening system (5) is assembled, a spindle (6.2) configured for moving the carriage (6.1), and a servomotor (6.3) configured for operating the spindle (6.2), such that it allows moving the straightening system (5) with respect to the center of the machine (1), thereby regulating the profile flange length;

ii) a bending station (3.2) configured for bending the profile flanges in a symmetrical manner, comprising

- a profile width regulation system (7) comprising one or more profile width regulation stages, wherein each stage comprises at least one pair of plates (7.1) arranged coaxially and assembled on drive shafts (7.2),

• wherein each stage of the profile width regulation system (7) further comprises a transverse carriage (7.5), assembled in a sliding manner on transverse shafts (8.1) and configured for pushing the plates (7.1) along the drive shafts (7.2) such that the plates (7.1) move closer to or farther away from one another, and a spindle (7.3) configured for moving the carriage (7.5),

• wherein each stage of the profile width regulation system (7) comprises a plurality of springs (7.4) arranged between each pair of plates (7.1) and configured for reducing clearances between the plates (7.1) and the profile,

• wherein the spindles (7.3) of each stage of the profile width regulation system (7) are operated by means of gear rings (7.6) meshing with a worm screw (7.7), which is attached to a shaft (7.8) common to all the stages of the profile width regulation system (7),

- a defined-angle bending system (10) arranged above the profile width regulation system (7), comprising one or more defined-angle bending stages, wherein each stage comprises a central plate (10.1) and a pair of side plates (10.2) arranged on each side of the central plate (10.1) and assembled coaxially on a rotating shaft (10.3),

• wherein each stage of the defined-angle bending system (10) comprises a plurality of springs (10.4) arranged between each pair of side plates (10.2) and friction discs (10.5),

• wherein each stage of the defined-angle bending system (10) comprises pushing elements (10.6) configured for pushing the side plates (10.2) such that the plates (10.2) move closer to or farther away from one another, and spindles (10.7) configured for moving the pushing elements (10.6),

• wherein the spindles (10.7) of each stage of the defined-angle bending system (10) are attached by means of an elastic coupling (10.8),

iii) a profile web creasing station (3.4), comprising a profile web M-shape creasing system (12), in turn comprising a first roller (12.1) and a second roller (12.2) arranged below the first roller (12.1), wherein the distance between the first roller (12.1) and the second roller (12.2) can be regulated by means of a set of spindles (12.4) and gear rings (12.3) operated by a servomotor (12.5); ch
aracterized in that the machine (1) further comprises

iv) a profile flange asymmetrical bending station (3.3), in turn comprising

- a profile width regulation system comprising at least the same elements as the profile width regulation system (7) of the bending station,

- a variable-angle bending system (11) arranged above the profile width regulation system, comprising a central plate (11.1) and a pair of forming plates (11.2) arranged on each side of the central plate (11.1) and assembled coaxially on a rotating shaft (11.3),

• wherein the variable-angle bending system (11) comprises a plurality of springs (11.4) arranged between each pair of forming plates (11.2), and friction discs (11.5),

• wherein the variable-angle bending system (11) comprises pushing elements (11.6) configured for pushing the forming plates (11.2) such that the plates (11.2) move closer to or farther away from one another, and spindles (11.7) configured for moving the pushing elements (11.6),

• wherein the spindles (11.7) are operated independently by means of servomotors (11.8, 11.9), such that the angle of each profile flange can be independently adjusted.

2. The machine (1) for manufacturing metal profiles according to the preceding claim, characterized in that it further comprises a side guiding system (9) with side strip guides (9.1) assembled on carriages (9.3), wherein the carriages (9.3) are moved by means of spindles (9.4) operated by servomotors (9.5).

3. The machine (1) for manufacturing metal profiles according to any of the preceding claims, characterized in that the machine (1) further comprises a hinged attachment (14) configured for attaching an upper part of the machine and a lower part of the machine, wherein

- the upper part of the machine comprises at least the defined bending system (10), the variable-angle bending system (11), and the first roller (12.1) of the profile web creasing station, and

- the lower part of the machine comprises at least the profile width regulation system (7), the profile width regulation system of the station for the asymmetrical bending, and the second roller (12.2) of the profile web creasing station.

4. The machine (1) for manufacturing metal profiles according to any of the preceding claims, characterized in that the profile web creasing station comprises after the M-shape creasing system (12) a profile width regulation system and a variable-angle bending system (11) for correcting the shape of the profile after passing through the profile web creasing station.

5. The machine (1) for manufacturing metal profiles according to any of the preceding claims, characterized in that the machine (1) comprises a control system which can be operated by means of a control panel.

6. The machine (1) for manufacturing metal profiles according to any of the preceding claims, characterized in that the machine (1) comprises a power supply system.

7. The machine (1) for manufacturing metal profiles according to any of the preceding claims, characterized in that the machine (1) comprises a drive mechanism comprising extendable universal drives (1.1) operated by a geared motor.

8. The machine (1) for manufacturing metal profiles according to any of the preceding claims, characterized in that it comprises intermediate guiding means arranged between the bending station (3.2) and the profile flange asymmetrical bending station (3.3).

Ansprüche

1. Maschine (1) zum Herstellen von Metallprofilen mittels Walzen, umfassend:

i) eine Einlaufstation (3.1), die zum Aufnehmen und Richten eines ebenen Metallblechs konfiguriert ist, wobei die Einlaufstation wiederum umfasst:

- ein Richt- und Führungssystem (5) für das ebene Blech, das umfasst: mehrere Walzen (5.1), die in zwei versetzten Reihen angeordnet und mit ihren Drehwellen in der vertikalen Position auf einem Schlitten (5.3) montiert sind, der bezüglich der Blechvorbewegungsrichtung quer bewegt werden kann, eine Spindel (5.2), die zum Bewegen des Schlittens (5.3) konfiguriert ist, und einen Servomotor (5.4), der zum Betreiben der Spindel (5.2) konfiguriert ist, wobei der Abstand zwischen den Reihen von Walzen (5.1) geregelt wird, und

- ein asymmetrisches System (6), das zum Bewegen der Baugruppe des Richtsystems (5), das einen Schlitten (6.1), auf dem das Richtsystem (5) montiert ist, eine Spindel (6.2), die zum Bewegen des Schlittens (6.1) konfiguriert ist, und einen Servomotor (6.3), der zum Betreiben der Spindel (6.2) konfiguriert ist, umfasst, in Querrichtung konfiguriert ist, so dass es ein Bewegen des Richtsystems (5) bezüglich der Mitte der Maschine (1) zulässt, wodurch die Profilflanschlänge geregelt wird;

ii) eine Biegestation (3.2), die zum symmetrischen Biegen der Profilflansche konfiguriert ist, umfassend:

- ein Profilbreitenregelungssystem (7), das ein oder mehrere Profilbreitenregelungsstufen umfasst, wobei jede Stufe mindestens ein Paar Platten (7.1) umfasst, die auf Antriebswellen (7.2) koaxial angeordnet und montiert sind,

• wobei jede Stufe des Profilbreitenregelungssystems (7) weiterhin einen Querschlitten (7.5), der gleitend auf quer liegenden Wellen (8.1) montiert und zum Schieben der Platten (7.1.) entlang der Antriebswellen (7.2) konfiguriert ist, so dass sich die Platten (7.1.) näher aufeinander zu oder weiter weg von einander bewegen, und eine Spindel (7.3), die zum Bewegen des Schlittens (7.5) konfiguriert ist, umfasst,

• wobei jede Stufe des Profilbreitenregelungssystems (7) mehrere Federn (7.4) umfasst, die zwischen jedem Paar von Platten (7.1.) angeordnet und zum Verringern von Freiräumen zwischen den Platten (7.1.) und dem Profil konfiguriert sind,

• wobei die Spindeln (7.3) jeder Stufe des Profilbreitenregelungssystems (7) mittels Zahnkränzen (7.6) betrieben werden, die mit einer Schneckenschraube (7.7) kämmen, die an einer allen Stufen des Profilbreitenregelungssystems (7) gemeinsamen Welle (7.8) angebracht ist,

- ein System (10) zum Biegen eines festgelegten Winkels, das über dem Profilbreitenregelungssystem (7) angeordnet ist und ein oder mehrere Stufen zum Biegen eines festgelegten Winkels umfasst, wobei jede Stufe eine mittlere Platte (10.1) und ein Paar von Seitenplatten (10.2) umfasst, die an jeder Seite der mittleren Platte (10.1) angeordnet und koaxial auf einer Drehwelle (10.3) montiert sind,

• wobei jede Stufe des Systems (10) zum Biegen eines festgelegten Winkels mehrere Federn (10.4), die zwischen jedem Paar von Seitenplatten (10.2) angeordnet sind, und Reibscheiben (10.5) umfasst,

• wobei jede Stufe des Systems (10) zum Biegen eines festgelegten Winkels Schiebeelemente (10.6), die konfiguriert sind, um die Seitenplatten (10.2) so zu schieben, dass sich die Platten (10.2) näher aufeinander zu oder weiter voneinander weg bewegen, und Spindeln (10.7), die zum Bewegen der Schiebeelemente (10.6) konfiguriert sind, umfasst,

• wobei die Spindeln (10.7) jeder Stufe des Systems (10) zum Biegen eines festgelegten Winkels mittels einer elastischen Kopplung (10.8) angebracht sind,

iii) eine Profilbahn-Rillstation (3.4), welche ein Profilbahn-M-Form-Rillsystem (12) umfasst, das wiederum eine erste Walze (12.1) und eine zweite Walze (12.2), die unter der ersten Walze (12.1) angeordnet ist, umfasst, wobei der Abstand zwischen der ersten Walze (12.1) und der zweiten Walze 12.2) mittels eines Satzes von Spindeln (12.4) und Zahnkränzen (12.3), die von einem Servomotor (12.5) betrieben werden, reguliert werden kann;

dadurch gekennzeichnet, dass die Maschine (1) weiterhin umfasst:
iv) eine Station (3.3) zum asymmetrischen Biegen eines Profilflansches, die wiederum umfasst:

- ein Profilbreitenregelungssystem, das mindestens die gleichen Elemente wie das Profilbreitenregelungssystem (7) der Biegestation umfasst,

- ein System (11) zum Biegen eines variablen Winkels, das über dem Profilbreitenregelungssystem angeordnet ist und eine mittlere Platte (11.1) und ein Paar von Formplatten (11.2) umfasst, die an jeder Seite der mittleren Platte (11.1) angeordnet und koaxial auf einer Drehwelle (11.3) montiert sind,

• wobei das System (11) zum Biegen eines variablen Winkels mehrere Federn (11.4), die zwischen jedem Paar von Formplatten angeordnet sind, und Reibscheiben (11.5) umfasst,

• wobei das System (11) zum Biegen eines variablen Winkels Schiebeelemente (11.6), die konfiguriert sind, um die Formplatten (11.2) so zu schieben, dass sich die Platten (11.2) näher aufeinander zu oder weiter voneinander weg bewegen, und Spindeln (11.7), die zum Bewegen der Schiebeelemente (11.6) konfiguriert sind, umfasst,

• wobei die Spindeln (11.7) mittels Servomotoren (11.8, 11.9) unabhängig betrieben werden, so dass der Winkel jedes Profilflansches unabhängig eingestellt werden kann.

2. Maschine (1) zum Herstellen von Metallprofilen nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass sie weiterhin ein Seitenführungssystem (9) mit Seitenstreifenführungen (9.1) umfasst, die auf Schlitten (9.3) montiert sind, wobei die Schlitten (9.3) mittels Spindeln (9.4), die von Servomotoren (9.5) betrieben werden, bewegt werden.

3. Maschine (1) zum Herstellen von Metallprofilen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Maschine (1) weiterhin eine Scharnierbefestigung (14) umfasst, die zum Befestigen eines oberen Teils der Maschine und eines unteren Teils der Maschine konfiguriert ist, wobei

- der obere Teil der Maschine mindestens das System (10) zum festgelegten Biegen, das System (11) zum Biegen eines variablen Winkels und die erste Walze (12.1) der Profilbahn-Rillstation umfasst und

- der untere Teil der Maschine mindestens das Profilbreitenregelungssystem (7), das Profilbreitenregelungssystem der Station für das asymmetrische Biegen und die zweite Walze (12.2) der Profilbahn-Rillstation umfasst.

4. Maschine (1) zum Herstellen von Metallprofilen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Profilbahn-Rillstation nach dem M-Form-Rillsystem (12) ein Profilbreitenregelungssystem und ein System (11) zum Biegen eines variablen Winkels zum Korrigieren der Form des Profils nach dem Durchlaufen der Profilbahn-Rillstation umfasst.

5. Maschine (1) zum Herstellen von Metallprofilen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Maschine (1) ein Steuersystem umfasst, das mittels eines Bedienfelds betätigt werden kann.

6. Maschine (1) zum Herstellen von Metallprofilen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Maschine (1) ein Stromversorgungssystem umfasst.

7. Maschine (1) zum Herstellen von Metallprofilen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Maschine (1) einen Antriebsmechanismus umfasst, der von einem Getriebemotor betriebene ausfahrbare Universalantriebe (1.1) umfasst.

8. Maschine (1) zum Herstellen von Metallprofilen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie Zwischenführungsmittel umfasst, die zwischen der Biegestation (3.2) und der Station (3.3) zum asymmetrischen Biegen eines Profilflansches angeordnet sind.

Revendications

1. Une machine (1) de fabrication de profilés métalliques au moyen de rouleaux, comprenant :

i) un poste d'entrée (3.1) configuré pour recevoir et redresser une tôle plane, le poste d'entrée comprenant tour-à-tour :

- un système (5) de redressage et de guidage pour la feuille plane comprenant une pluralité de rouleaux (5.1) agencés en deux rangées décalées et assemblés avec leurs axes de rotation en position verticale sur un chariot (5.3) qui peut être déplacé transversalement par rapport à la direction d'avancement de la feuille, une broche (5.2) configurée pour déplacer le chariot (5.3) et un servomoteur (5.4) configuré pour actionner la broche (5.2), régulant la distance entre les rangées de rouleaux (5.1), et

- un système d'asymétrie (6) configuré pour déplacer transversalement l'ensemble du système de redressage (5), comprenant un chariot (6.1) sur lequel le système de redressage (5) est assemblé, une broche (6.2) configurée pour déplacer le chariot (6.1), et un servomoteur (6.3) configuré pour actionner la broche (6.2), de sorte qu'il permet de déplacer le système de redressage (5) par rapport au centre de la machine (1), régulant ainsi la longueur de rebord profilé ;

ii) un poste de pliage (3.2) configuré pour plier les rebords profilés de manière symétrique, comprenant

- un système (7) de régulation de largeur de profil comprenant un ou plusieurs étages de régulation de largeur de profil, chaque étage comprenant au moins une paire de plaques (7.1) agencées coaxialement et assemblées sur des arbres d'entraînement (7.2),

• chaque étage du système (7) de régulation de largeur de profil comprenant en outre un chariot transversal (7.5), assemblé de manière coulissante sur des arbres transversaux (8.1) et configuré pour pousser les plaques (7.1) le long des arbres d'entraînement (7.2) de sorte que les plaques (7.1) se rapprochent ou s'éloignent les unes des autres, et une broche (7.3) configurée pour déplacer le chariot (7.5),

• chaque étage du système (7) de régulation de largeur de profil comprenant une pluralité de ressorts (7.4) agencés entre chaque paire de plaques (7.1) et configurés pour réduire les jeux entre les plaques (7.1) et le profil,

• les broches (7.3) de chaque étage du système (7) de régulation de largeur de profil sont actionnées au moyen d'anneaux d'engrenage (7.6) engrenant avec une vis sans fin (7.7), qui est fixée à un arbre (7.8) commun à tous les étages du système (7) de régulation de largeur de profil,

- un système (10) de pliage selon un angle défini agencé au-dessus du système (7) de régulation de largeur de profil, comprenant un ou plusieurs étages de pliage selon un angle défini, chaque étage comprenant une plaque centrale (10.1) et une paire de plaques latérales (10.2) agencées de chaque côté de la plaque centrale (10.1) et assemblées coaxialement sur un arbre rotatif (10.3),

• chaque étage du système (10) de pliage selon un angle défini comprenant une pluralité de ressorts (10.4) agencés entre chaque paire de plaques latérales (10.2) et de disques de friction (10.5),

• chaque étage du système (10) de pliage selon un angle défini comprenant des éléments de poussée (10.6) configurés pour pousser les plaques latérales (10.2) de telle sorte que les plaques (10.2) se rapprochent ou s'éloignent les unes des autres, et des broches (10.7) configurées pour déplacer les éléments de poussée (10.6),

• les broches (10.7) de chaque étage du système (10) de pliage selon un angle défini étant fixées au moyen d'une liaison élastique (10.8),

iii) un poste (3.4) de rainage de bande profilée, comprenant un système (12) de rainage en forme de M de bande profilée, comprenant tour-à-tour un premier rouleau (12.1) et un deuxième rouleau (12.2) agencé sous le premier rouleau (12.1), la distance entre le premier rouleau (12.1) et le deuxième rouleau (12.2) étant apte à être réglée au moyen d'un ensemble de broches (12.4) et d'anneaux d'engrenage (12.3) actionnés par un servomoteur (12.5) ;
caractérisée en ce que la machine (1) comprend en outre

iv) un poste (3.3) de pliage asymétrique de rebord profilé, comprenant, tour-à-tour

- un système de régulation de largeur de profil comprenant au moins les mêmes éléments que le système (7) de régulation de largeur de profil du poste de pliage,

- un système (11) de pliage selon un angle variable agencé au-dessus du système de régulation de largeur de profil, comprenant une plaque centrale (11.1) et une paire de plaques de formage (11.2) agencées de chaque côté de la plaque centrale (11.1) et assemblées coaxialement sur un arbre rotatif (11.3),

• le système (11) de pliage selon un angle variable comprend une pluralité de ressorts (11.4) agencés entre chaque paire de plaques de formage (11.2), et des disques de friction (11.5),

• le système (11) de pliage selon un angle variable comprend des éléments de poussée (11.6) configurés pour pousser les plaques de formage (11.2) de telle sorte que les plaques (11.2) se rapprochent ou s'éloignent les unes des autres, et des broches (11.7) configurées pour déplacer les éléments de poussée (11.6),

• les broches (11.7) étant actionnées indépendamment au moyen de servomoteurs (11.8, 11.9), de sorte que l'angle de chaque rebord profilé est apte à être réglé indépendamment.

2. La machine (1) de fabrication de profilés métalliques selon la revendication précédente, caractérisée en ce qu'elle comprend en outre un système (9) de guidage latéral à guides de bande latéraux (9.1) montés sur des chariots (9.3), les chariots (9.3) étant déplacés au moyen de broches (9.4) actionnées par des servomoteurs (9.5).

3. La machine (1) pour la fabrication de profilés métalliques selon l'une quelconque des revendications précédentes, caractérisée en ce que la machine (1) comprend en outre une fixation articulée (14) configurée pour fixer une partie supérieure de la machine et une partie inférieure de la machine,

- la partie supérieure de la machine comprenant au moins le système (10) de pliage selon un angle défini, le système (11) de pliage selon un angle variable et le premier rouleau (12.1) du poste de rainage de bande profilée, et

- la partie inférieure de la machine comprenant au moins le système (7) de régulation de largeur de profil, le système de régulation de largeur de profil du poste pour le pliage asymétrique et le deuxième rouleau (12.2) du poste de rainage de bande profilée.

4. La machine (1) pour la fabrication de profilés métalliques selon l'une quelconque des revendications précédentes, caractérisée en ce que le poste de rainage de bande profilée comprend, après le système (12) de rainage en forme de M, un système de régulation de largeur de profil et un système (11) de pliage selon un angle variable pour corriger la forme du profilé après avoir traversé le poste de rainage de bande profilée.

5. La machine (1) de fabrication de profilés métalliques selon l'une quelconque des revendications précédentes, caractérisée en ce que la machine (1) comprend un système de commande qui peut être actionné au moyen d'un tableau de commande.

6. La machine (1) de fabrication de profilés métalliques selon l'une quelconque des revendications précédentes, caractérisée en ce que la machine (1) comprend un système d'alimentation en énergie.

7. La machine (1) de fabrication de profilés métalliques selon l'une quelconque des revendications précédentes, caractérisée en ce que la machine (1) comprend un mécanisme d'entraînement comprenant des entraînements universels extensibles (1.1) actionnés par un motoréducteur.

8. La machine (1) de fabrication de profilés métalliques selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend des moyens de guidage intermédiaires agencés entre le poste de pliage (3.2) et le poste (3.3) de pliage asymétrique de rebord profilé.

Drawing