• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device (1) and method for bending a profile element (2) with at least one adjustable bending element (11) in order to bend the profile element (12) by adjusting the bending element (11), wherein a bearing element (4) with a passage opening (5 ) is provided for the passage of the profile element (2), wherein on the bearing element (4) at least one holder (13) for the bending element (11) is adjustably arranged, and in that a bending mandrel (12) is provided as a bending element (11) which a through the passage opening (5) of the bearing element (4) projecting portion of the profile element (2) is bendable.
    公开号:AT514954A4
    申请号:T50267/2014
    申请日:2014-04-09
    公开日:2015-05-15
    发明作者:Franz Dipl Ing Steiner
    申请人:Stonawski Rudolf Mag；
    IPC主号:
    专利说明:

    The invention relates to a device for bending a profiled element with at least one adjustable bending element in order to bend the profiled element by adjusting the bending element.
    Furthermore, the invention relates to a method for bending a profile element, in particular for a support or protection device fitted to a body part, wherein the profile element local is heated and bent.
    In many fields of application there is a need for individually adaptable, elongated profile elements which can be used as strand or spacer elements in skeleton or lattice-like structures.
    In WO 2011/044595 Al, for example, a novel support device for adaptation to a body part has been proposed with which conventional plaster casts are to be replaced. In the known method, image data is taken by the relevant body part, which is evaluated for the purpose of determining a 3D model with the aid of computer means. On the basis of this 3D model, a set of control signals for different driver stages is then generated via a numerical control. These driver stages then control different shaping means via corresponding driver signals. Starting from a suitable thermoplastic bar or strand material, elongated support members are produced by means of the various forming devices. After heating, the bar material is fed by means of a heating device to a forming device with forming rollers. In addition, a Druckeinstel¬leinheit for the upper forming roller is provided to move them with the respective pressure and also with the respective adjustment relative to the two lower forming rollers and thus provide corre sponding curvatures, bends, indentations or the like in Stan¬genmaterial.
    However, protection devices such as elbow protectors, protective helmets, protective clothing for workers and athletes can also be produced from the individually adapted support elements. For example, an embodiment of a protective trousers is described in which
    Fabric in the body parts to be protected anatomically individually shaped support members are inserted. Of course, other applications for this technique, such as anatomically shaped vehicle seats, are given.
    In addition, DE 10 2004 002 539 A1 has disclosed a method and a device for bending an elongate profile body, in particular a pipe, from plastic which is deformable under elevated temperature. The elongated profile body is fed to a drive unit in a feed direction in the axial direction of a heating device for heating the regions of the profile body to be bent. The heated bending areas are bent by means of a bending device. The bent regions of the profile body are finally cooled by means of cooling and the profile body is cut to the appropriate length. The machining operations can be controlled by means of a control device. Bending rollers are provided for the bending, wherein the bending direction last in the bending direction can be changed in position.
    In practice, however, numerous disadvantages of such bending rolls have been shown. The control of the bending rollers is ver¬gleichsweise complicated. In addition, there are restrictions on the cross-sectional geometry of the profile body. Furthermore, it is disadvantageous that the bending rollers can not or only with great effort can be exchanged to produce other profile body. In addition, the space required by the bending rollers is disadvantageous.
    In contrast, the object of the present invention da¬rin to alleviate or eliminate the disadvantages of the prior art. The invention therefore has the particular object of providing a structurally simple, compact bending device of the type mentioned at the outset, with which profile elements of different cross-sectional geometries can be easily manufactured.
    This object is achieved by a device as indicated in claim 1, and by a method as angege¬ben in claim 17.
    According to the invention, a bearing element is provided with a passage opening for the passage of the profile element, wherein at least one holder for the bending element is adjustably arranged on the bearing element, and that a bending mandrel is provided as the bending element with which a section of the profile element projecting through the passage opening of the bearing element is bendable.
    With the bending device according to the invention, elongated or. elongated profile elements are produced in a particularly simple manner, wherein the bending element in the form of a bending mandrel diverse geometries can be produced. For this purpose, a rod or strand material forming the profile element is provided, which is selected from the materials mentioned in AT 507 888 Bl according to the respective application case. Therefore, plastics, preferably thermoplastics, but also metals, metal alloys or memory materials, ie shape memory materials, can be provided as rod or strand material. The profile element can have different cross-sectional geometries, for example a round or rectangular cross-section, whereby the cross-section of the profile element in the longitudinal direction of the profile element is preferably invariable. Preferably, the tool for the profile element is obtained by extrusion. The profiled element is guided through the passage opening of the bearing element, which is preferably formed according to the cross section of the profiled element. In a preferred embodiment, the bearing element is stationary, i. stationary during bending, arranged. In a further preferred embodiment, the bearing element is adjustable, in particular rotatable about a pivot axis coinciding with the feed direction of the profile element. In a further preferred embodiment, the passage opening is provided on an inner bearing part of the bearing element, wherein the inner bearing part is preferably adjustably arranged in an outer bearing part of the bearing element. This embodiment has the particular advantage that the inner bearing part can be designed as an insert, which can be exchanged depending on the application. In particular, it is preferred that the inner bearing part for changing the
    Passage opening is adjustable. This embodiment has the advantage that the passage opening can be increased or decreased as required to take into account, for example, thermal or torsional expansion of the profile element due to heating. In order to enable the setting of the passage opening, the inner bearing part with an actuator, for example a pneumatic drive, have ver¬bundene segments.
    For the deformation of the profile element, the holder for the bending mandrel is adjusted relative to the bearing element, so that the bending mandrel provided on the holder is pressed against the section of the profile element protruding from the passage opening. The holder is preferably connected to an actuator, which with Help a control unit is controlled. With the aid of the bending mandrel, a defined bending point is produced on the profile element, which allows an individual adaptation of the profile element to the desired intended use, for example in the case of the supporting or protective device for a body part mentioned in the introduction. By adjusting the holder gegen¬ the bearing element, the bending points on the profile element can be provided with high accuracy. Advantageously, a stable bending device with a small size is achieved by the inventive storage of the holder on the La¬ gerelement, which is also structurally simple and little störungsan¬fällig. Due to the configuration of the bending element as a ver¬schieblicher bending mandrel can be dispensed with the er¬ required in the prior art forming rollers. According to the invention, a bending mandrel is used for the bending of the profile element, which distinguishes itself by a more compact construction in comparison to the bending rollers or forming rollers known in the prior art. Due to the compact design, the inventive bending device can be better integrated into an automatic production line. Furthermore, it is advantageous that the control of the bending mandrel can be made easier and with higher reliability. In addition, the bender can be easily and quickly converted to produce profile elements with different cross-sectional geometries.
    The bending mandrel preferably has at the free end a contact surface shaped corresponding to the profile element. Depending on the application, the bending mandrel may therefore have a concave indentation at the free end, for example, which fits into a round profile element. In order to be able to precisely bend profile elements with different cross sections, it is favorable if the bending mandrel has a detachable bent part with the contact surface for the profile element at the free end. As a result, the bending part matching the respective profile element can be provided in the manner of an attachment part on the bending device.
    In order to enable the adjustment of the bending mandrel on the bearing element with konstruk¬tiv simple means in a reliable manner, it is favorable if the bearing element has a curved, in particular substantially spherically curved, guide portion on which the holder for the bending mandrel is pivotably arranged. By pivoting the holder along the curved guide section of the bearing element, the bending mandrel can be displaced relative to the passage opening of the bearing element in order to bend the passage section of the profiled element into the desired shape. As a result, a particularly simple pivoting mechanism is achieved, which also works permanently reliable. Preferably, a spherical guide portion is provided. In another application, however, an ellipsoidal guide section may also be used.
    In order to arrange the free end of the bending mandrel in the region of the passage opening of the bearing element, it is favorable if the bending mandrel is arcuate, in particular arcuate, curved. Accordingly, the bending mandrel, starting from the holder, is bent inwards so that the free end of the bending mandrel is curved Bending mandrel can be positioned in front of the passage opening of the bearing element.
    In order to displaceably arrange the bending mandrel along a predetermined guide path on the bearing element, it is favorable if the curved guide section of the bearing element has an elongated recess for guiding the curved bending mandrel. The longitudinal recess preferably extends from an outer region of the curved guide section in the direction of the passage opening, which is preferably located in the region of a central axis of the bearing element.
    According to a preferred embodiment, two bending mandrels are provided on the holder, wherein the two bending mandrels are preferably arranged opposite to the holder. Preferably, exactly two bending mandrels are provided on the holder. In this case, it is expedient for the bending mandrels to be of identical design, whereby the free ends of the bending mandrels are arranged opposite one another. The holder with the bending mandrel on the curved, in particular spherical, guide section is preferably pivotable in opposite directions in order to be able to bend the section of the profile element projecting out of the passage opening into the one direction with the one bending mandrel or in the other direction with the other bending mandrel , Of course, however, more than two bending mandrels can be provided on the same support. In addition, the holder may have under differently designed bending mandrels.
    In order to be able to adapt the shape of the profile element in a variety of ways, it is advantageous if two holders are provided, each with two bending mandrels, wherein the bending mandrels can be pivoted on the holding rings in different, preferably mutually perpendicular, planes. Preferably, exactly two holders are provided, each with at least two, in particular exactly two, bending mandrels. However, more than two holders can also be adjustably arranged on the bearing element. Vor¬zugt the pivot planes of the brackets are perpendicular to each other. However, the brackets can also be arranged in a different angular position from one another at a right angle. Thus, the profile element can be bent in total in at least four different directions, whereby advantageously also complicated geometries can be produced, which are expedient in a wide variety of applications, such as supporting or protective devices for body parts, individual concrete formwork or structural elements. Preferably, the bending mandrels of one holder are pivotable in a horizontal plane and the bending mandrels of the other holder are pivotable in a vertical plane.
    For stable mounting of the holder on the bearing element, it is advantageous if the holder has a retaining ring on which the bending mandrel, preferably the two bending mandrels, is provided or. are.
    To arrange the brackets to save space on the bearing element, it is advantageous if on the outside of the bearing element an outer retaining ring and / or on the inside of the bearing element ainner retaining ring is provided. Accordingly, the particular spherically curved inner side of the bearing element can be used as a guide section for the inner retaining ring and in particular the spherically curved outer side of the bearing element as a guide section for the outer retaining ring.
    According to a preferred embodiment, at least one bending mandrel has at the free end a guide tongue on which a bottom side of the section of the profile element projecting through the passage opening can be supported. Accordingly, a support surface is provided on the Führungs¬lasche, on which the Profilele¬ment is guided during bending. Advantageously, it can be prevented so reliably that a portion of the profile element heated for the bending sags. Thus, the Formstabili¬ tity of the profile element produced can be improved. Preferably, the guide tab is provided on a bending mandrel displaceable in a horizontal plane or in a plane extending obliquely to the horizontal. In addition, the Führungsla¬sche also have an upper guide surface on which an upper side of the projecting through the passage opening portion of the profile element is feasible.
    According to a further preferred embodiment, at least one bending mandrel has a bending pocket at the free end, which is movable toward the passage opening or away from the passage opening. As a result, the bending tab provided for bending the profile element can be approximated to the passage opening. This embodiment is particularly advantageous if a profile element with a rectangular cross-section is produced, which is guided in a horizontal arrangement through the correspondingly shaped passage opening.
    In order to convey the profile element during the bending process through the passage opening of the bearing element, it is advantageous if a feed device for advancing the profile element in the direction of its longitudinal axis is provided, which preferably has a guide rail for the profile element. The feed device preferably has a feed drive. In a preferred embodiment, the feed drive is coupled to a driving element with which the profile element can be advanced within the guide rail. The guide rail preferably has a groove-shaped recess for receiving the profile element. The groove-shaped recess is preferably shaped in accordance with the cross-section of the profile element, wherein the profile element or the groove-shaped recess of the guide rail can, for example, have a rectangular or circular cross section.
    In order to bring the profile element in a deformable state, it is advantageous if a heating device is provided for locally heating the profile element. Thereafter, the profile element can be bent or twisted at the heated locations with the mandrel. For example, an infrared radiation source, a hot air supply, a heating mat, a heat convection device, a contact heater, a halogen emitter or a quartz emitter can be provided as the heating device.
    In order to rotate sections of the profile element against each other, it is favorable if a twisting device is provided for rotating the profile element about its longitudinal axis. With the turning device, torsion of the profile element with respect to its longitudinal axis can therefore be achieved, which in some applications may be required in addition to the bending of the profile element with the bending mandrel.
    The rotation of the profile element can be achieved in a particularly simple way, when the twisting device, in particular by means of a pivot ring, is connected to the guide rail for the Pro¬filelement. In a preferred embodiment, the swivel ring is arranged around the elongated guide rail, with a rotationally fixed connection being provided between the swivel ring and the guide rail. The swiveling ring is connected to a swivel drive, in particular by means of a belt drive. Of course, other means for transmitting the torque from the pivot drive to the pivot ring, for example a chain drive, may also be provided.
    In order to enable a rotation of the profile element about a fixed Tor¬sionswinkel with respect to the longitudinal axis of the profile element, it is advantageous if the turning means einFixierelement for fixing the profile element in the guide rail, so that the profile element by pivoting the guide rail between the Fixing element and the passage opening is deformable. The fixing element preferably has a fixing opening corresponding in cross-section to the profile element, so that the profile element is held within the recess of the guide rail during rotation in the position in accordance with the invention.
    In order to fix sections of the profile element in the bent or rotated about its longitudinal axis state, it is advantageous if a curing and / or cooling device is provided for curing or Abküh¬len the profile element. Accordingly, on the one hand a cooling device can be provided, with which, for example, cooling air is discharged to the profile element. On the other hand, a curing device can be provided in order, for example, to bring about curing of the profile element by means of ultraviolet light.
    According to a preferred embodiment, the curing or cooling device has a curing or cooling element at the free end of the bending mandrel and / or a curing or cooling element in the region of the screwing device. Accordingly, a curing or cooling element can be provided at the free end of the bending mandrel in order to harden or cool the profile element at the bending point generated by the bending mandrel. This embodiment is particularly advantageous since the cooling or hardening element is integrated directly into the bending mandrel. As a result, shorter cooling or Aushärtzei¬ten can be achieved. In addition, can precisely a local Abkbungungbzw. Curing can be brought about, with which the cross-section of the profile element is largely kept constant. Moreover, a curing or cooling element of Verdre¬heinrichtung be assigned to a rotation of the Profileie- ment about its longitudinal axis by curing or cooling to fi¬ xieren.
    The application range of the bending device can be widened by providing a unit for forming a recess in the profile element, in particular for forming a groove-shaped recess for releasing the bend of the profile element and / or for forming a retaining opening for connection to another profile element is, wherein the unit vorzugswei¬se is designed as a milling device. The milling device can have a movable milling head, with which various kinds of recesses can be produced in the profile element. In a first preferred embodiment, a groove-shaped recess is produced with the milling device, which facilitates the bending of the profile element on the groove-shaped recess. In a further preferred embodiment, a holding opening is provided in the profile element with the milling device, which is designed for connection to other profile elements. Thereby, the mounting of a skeleton-like support structure can already be prepared in the bending device according to the invention which forms the desired three-dimensional free-form surface. Instead of the milling device, a punching or cutting device can also be provided.
    In order to avoid weak points in the profiled element, it is advantageous if a unit for permanently connecting the sections of the profiled element adjoining the serrated recess is provided after bending of the profiled element, wherein the unit is preferably formed as a welding unit.
    As a result, the stability of the profile element on the bending part can be improved. Instead of the welding unit, it is also possible to provide an adhesive unit for bonding the sections of the profile element adjoining the groove-shaped recess.
    In the method according to the invention, the profile element is guided through a passage opening of a bearing element, whereupon a bending mandrel supported on the bearing element is adjusted in order to bend the section of the profile element projecting through the passage opening. The advantages and technical effects of this method are evident from the above explanations of
    Bender.
    In this method, it is favorable if a profiled element made of plastic, a metal, a metal alloy or a material with a memory effect is bent.
    In order to facilitate the formation of the bending point, a groove-shaped recess is preferably produced in the profile element, in particular milled, with which the bending of the profile element is released on the groove-shaped recess.
    In this embodiment, it is favorable if sections of the profile element adjoining the groove-shaped recess are permanently connected to one another, in particular welded, after bending of the profile element on the groove-shaped recess.
    For the production of individually adapted elements in various fields of application, it is favorable if a plurality of support elements and / or spacer elements forming profile elements are produced, which are combined to form a skeletal or grid-like structure.
    In a preferred application of the method, the profile elements are produced as constituents of a support or protective device adapted in shape to a body part. In this case, image data is taken by the body part or the image data is taken from a drawing program. The image data are evaluated to determine a 3D model of the body part with the aid of computer means, whereby control data for the device described above for bending the profile element are derived from the 3D model in order to produce profile elements individually adapted to the intended use. For this purpose, the method of AT 507 888 B1 can be used, which can be combined with the bending device according to the invention with particular advantages.
    Of course, the skeleton or grid-like structure of profile elements can also be used in other fields of application.
    For example, an application in which a skeleton or lattice-like internal structure for a concrete formwork element is produced from the profile elements is particularly advantageous. In addition, the skeleton or lattice-like structure made of profile elements can be used in components to be adapted individually. In these applications, it is beneficial if a cover element is applied to the skeletal structure of the profile elements.
    The invention will be explained below with reference to preferred Ausfüh¬rungsbeispielen, to which it should not be limited, however. In detail shows:
    1 is a perspective view of a device according to the invention for bending profile elements, in which a bearing element is provided with a passage opening for the profile element, which is bent with two pairs of bending mandrels on ver-pivotable brackets.
    FIG. 2 shows a longitudinal section through the bending device according to FIG. 1 in the region of a pair of bending mandrels; FIG.
    3 is a perspective view of the bending device according to FIG. 1, 2, wherein a feed device for advancing the profile element in a guide rail and a Verdrehein¬richtung for rotating the profile element about its longitudinal axis are clear;
    4 shows a view corresponding to FIG. 3 of the bending device according to FIGS. 1 to 3, the guide rail having the profile element inserted therein being pivoted by means of a swiveling ring of the twisting device;
    Fig. 5 shows schematic parts of a bending device similar to Figures 1 to 4, wherein a fixing element of the turning device ersicht¬lich to rotate the profile element between the fixing element and the passage opening of the bearing element.
    6 shows a schematic view of the bending device according to FIGS. 1 to 4 in a first pivoting position of an outer holding ring in order to bend the profile element with one bending mandrel onto one side, the bending mandrel having an adjustable bending tab at the free end;
    Figure 7 is a schematic view of the bending device according to Figures 1 to 4 in a second pivotal position of the outer retaining ring to bend the profile element with the other bending mandrel on the other side.
    Fig. 8 is a schematic view of a bending device similar to Fig. 1 to 4 in a first pivotal position of an inner holder to bend the profile element with the one bending mandrel on one side;
    9 shows a schematic view of the bending device according to FIG. 8 in a second pivoting position of the inner retaining ring in order to bend the profile element with the other bending mandrel to the other side;
    Fig. 10a shows schematically a part of the bending device, wherein a milling device is visible for milling a recess in the profile element;
    10b schematically shows a view according to FIG. 10a, wherein a milling head of the milling device has been displaced for milling the recess;
    11 a shows schematically a cross section of the bending element in the region of a groove-shaped recess which was produced with the milling device according to FIG. 10; and
    11b schematically shows a cross-section according to FIG. 11a, wherein the profile element has been bent in the area of the groove-shaped recess before the sections of the profile element adjacent to the recess are welded together by means of a welding device.
    1 shows a device 1 for bending an elongate profile element 2, which consists of a strand or rod material, in particular of a thermoplastic synthetic material.
    Fabric is generated. The strand or rod material can be fed in, for example by means of an extruder, as endless material. The profile element 2 can be used as a component of a skeleton-like structure, for example for a support or protection device adapted to a body part, or for a concrete formwork element. The device 1 has a stationary frame 3, which is constructed from various setting elements 3 ', which are not essential for the present invention. The device 1 has a bearing element 4, which has an inner bearing part 4 'and an outer bearing part 4' '. The outer bearing member 4 "is stationary in the embodiment shown, i. during the bending process stationary, arranged. The inner bearing part 4 'can be adjustable, in particular pivotable, be stored in the outer bearing part 4' '. The bearing element 4 has on the inner bearing part 4 'a passage opening 5 for the passage of the profile element 2, wherein the passage opening can be adjustable in size. For this purpose, the inner bearing part 4' with a drive mutually adjustable elements (not shown) haben.Vorteilhafterweise Thus, thermal expansions of the profile element 2 can be taken into account.
    As further shown in Fig. 1, the profiled element 2 is moved longitudinally by means of an advancing device 6, i. in the direction of the longitudinal axis of the profile element 2, advanced. The advancing device 6 has a guide rail 7 for inserting the profile element 2, which is connected to a feed drive 8 for advancing the profile element 2. The feed drive 8 is connected via power transmission means (not shown) to a take-up element 9 'with which the profile element 2 inside the guide rail 7 is displaceable in its longitudinal direction.
    As can be seen from FIG. 1, a twisting device 9 (explained with reference to FIGS. 3, 4) for rotating or twisting the profiled element 2 about its longitudinal axis is also provided. The twisting device 9 has a pivoting ring 10 which is rotationally fixed to the guide rail 7 is ver¬bunden for the profile element 2.
    As can be seen from FIG. 1, the device 1 also has adjustable bending elements 11 in order to bend the profile element 2 into the desired shape by adjusting the bending elements 11. In the embodiment shown, the bending elements 11 are formed by longitudinal bending mandrels 12, which are guided against sections of the profile element 2 projecting through the passage opening 5 of the bearing element 4 in order to produce at least one defined bending point on the profile element 2. For this purpose, the bending mandrels 12 are provided in pairs on holders 13, which are mounted pivotably on the bearing element 4. The bending mandrels 12 are disposed opposite to each other on the associated support 13 and configured identically.
    As can be seen from FIG. 1, an outer retaining ring 14 is provided on the outside of the bearing element 4, which carries the one pair of bending mandrels 12. In addition, on the inner side of the bearing element 4, an inner retaining ring 15 (see Fig. 2.5) is provided, which carries the other pair of bending mandrels 12. zurZan pivotal arrangement of the retaining rings 14, 15, the bearing element 4 at that of Feed device 6 facing away from a spherical curved guide portion 16 which forms on the outside of a spherical bearing surface for the outer retaining ring 14 and on the inside a spherical La¬gerfläche for the inner retaining ring 15. In addition, the spherical guide portion 16 of the bearing element 4 the bending mandrels 12 in cross-section corresponding elongate Aus¬nehmungen 17, in which the bending mandrels 12 are displaceable during pivoting of the brackets 13. For this purpose, the bending mandrels 12 are arcuately curved according to the spherical guide portion 16 of the bearing element 4.
    1 (see also FIGS. 6 to 9), the bending mandrels 12 displaceable in the horizontal plane each have a guide lug 18 at the free ends. The guide tabs 18 of the horizontal bending mandrels 12 serve to support the profile element 2 during bending. In the embodiment shown, the profile element 2 rests with the underside on a horizontal support surface of the guide lug 18, while the profile element 2 is bent with the end face of the bending mandrel 12. Moreover, the bending mandrels 12, which are movable in the vertical plane, have bending tabs 18 ', which in the embodiment according to FIGS. 6, 7 are adjustable in the horizontal direction, around the contact surfaces of the bending mandrels 12 closer to the passage opening 5 of the bearing element 4 to arrange. This embodiment is favorable when, as in the drawing, a profile element 2 having a rectangular cross-section is bent, which has a shorter extension in the vertical direction than in the horizontal direction.
    As can be seen from FIG. 2, the inlet 1 also has a heating device 20 in the form of a heating spiral with which the thermoplastic plastic material of the profile element 2 is locally heated, in order then to allow a deformation of the profile element 2. In addition, FIG. 2 shows a torsion chamber 21 of the twisting device 9 in which the torsion of the profile element 2 is made. The heater 20 and the torsion chamber 21 are provided in a housing 22 which is rotatably mounted on the bearing member 4 by means of a pivot bearing 23.
    As can be seen from FIGS. 3, 4, the swivel ring 10 of the twisting device 9 is connected to a swivel drive 10 'via a belt drive. In addition, the driving element 9 'of the feed device 6 can be seen.
    As can be seen from FIG. 5, the twisting device 9 has a fixing element 25 for fixing the profile element 2 in the guide rail 7. As a result, when the guide rail 7 is pivoted, the profile element 2 is rotated by means of the pivot ring 10 between the fixing element 25 and the stationary passage opening 5 of the bearing element 4. In addition, (schematically) the driving element 9 'of the feed device 6 can be seen.
    As can be seen from the drawing, the device 1 also has a cooling device 27 for cooling the profile element 2.
    In the embodiment shown, the cooling device 27 has a cooling element 24, viewed in the feed direction, in front of the passage opening 5 of the bearing element 4, with which a rotation of the profile element 2 can be fixed by cooling. The cooling element 24 has (schematically shown) supply lines for cooling air. The cooling device 27 also has further cooling elements 19 at the free ends of the bending mandrels 12. The cooling elements 19 are integrated into the bending mandrels 12 as cooling lines (shown schematically) in order to allow the profile element 2 to cool in connection with the bending process. Instead of the cooling device 27, a curing device (not shown), preferably with a UV light source, may be provided.
    In FIGS. 6, 7, the function of the bending mandrels 12 displaceable in a vertical plane on the outer retaining ring 14 is illustrated. Accordingly, the outer retaining ring 14 is connected via a Stan'gentrieb 28 'with a first actuator 28, so that the outer retaining ring 14 between a pivotal position (see.
    6) and a second pivoting position (cf., Fig. 7) is ver-swiveled. According to FIG. 6, the first actuator 28 is arranged in the first pivoting position in order to bend the profiled element 2 in arrow direction 29 via the intermediate position 29 'shown by dashed lines by substantially 90 ° with respect to the longitudinal axis of the profiled element 2 on the guide rail 7 into the position shown , 7, the first actuator 28 is disposed in the second pivotal position to deflect the tread element 2 in the opposite direction (see arrow 30) over the intermediate position 30 'shown in dashed lines to substantially 90 ° with respect to the longitudinal axis of the tread element 2 in the position shown , Of course, 12 different bending angles can be made at the Biege¬stellen using the bending mandrels, wherein in Figs. 6, 7, the end positions of the actuator 28 are shown. Upon pivoting of the outer retaining ring 14, the bending mandrels 12 are displaced along the recesses 17 on the spherical guide section 16 of the bearing element 4. From Fig. 6, 7 it can be seen that the Biegelaschen18 'are moved to the bending mandrels 12 in the embodiment shown to the passage opening 5 out.
    In Figs. 8, 9, the function of the bending mandrels 12 on the inner support ring 15 is illustrated. The inner retaining ring 15 is connected to a second actuator 31, which according to the first actuator 28 with a rod drive 31 'is ausgebil¬det to the inner retaining ring 15 between a first End¬stellung (see Fig .. 8) and a second end position (see Fig. 9) to pivot. According to FIG. 8, the second actuator 31 is arranged in the first end position in order to bend the profiled element 2 in the direction of arrow 32 via the intermediate position 32 'shown in dashed lines by substantially 90 ° with respect to the longitudinal axis into the position shown. 9, the second actuating drive 31 is arranged in the second end position in order to move the profiled element 2 in the opposite direction (see arrow 33) via the intermediate position 33 'shown by dashed lines to substantially 90 ° with respect to the longitudinal axis Profile element 2 to bend in the position shown. When pivoting the outer holder 14, the bending mandrels 12 are pushed along the recesses 17 on the spherical guide section 16 of the bearing element 4.
    A preferred field of application of the profile elements 2 produced with the device 1 are supporting devices which are applied to a body part, for example a leg, of a person. The profile elements 2 can form over the circumference of the Körper¬teil distributed elongated, rod or strip-shaped Stützele¬mente, which can be fixed by means of a fixing device relative to each other. Similarly, the profile elements 2 can be used for the production of a protective device, examples of which include a tibial protector for soccer players or a protective mask.
    In the present method, the profile elements 2 for the support or protective device are individually adapted to the shape (contour) of the body part, that is to say, for example, of the lower leg and foot. This is done, starting from a detection of the shape or contours of the body part, under derivation of entspre¬chenden machine control data for the shaping, Längenbestim¬mung and position fixing, largely automatic. Based on image acquisition with the aid of a scanner, a 3D model is determined in a manner known per se with the aid of computer means. On the basis of this 3D model, a control unit then controls individual shaping means. This method is known from AT 507 888 B1, the contents of which are incorporated in the present application. In particular, the shaping means also comprise the above-described device 1 for bending the profile elements 2. Accordingly, with the aid of the control unit, the individual drives of the device 1, in particular the feed drive 6, the twisting device 9 and the actuators 28, 31 for the Bending mandrels 12 an¬gesteuert to form the profile element 2 with the desired geometry.
    Parts of the bending device 1 are shown schematically in FIG. 10, which in this embodiment has a milling device 34 with which various recesses 35 can be produced in the profile element 2. According to Fig. 10a, the milling device 34 is arranged in a waiting position. To form the recess 35, a milling head 36 is guided over the profile element 2 in the transverse direction 37. For this purpose, the milling head 36 is slidably mounted on a support bar 37 'which is mounted on a support means (shown only schematically). The milling device 34 can also be used to cut through the semifinished product in the transverse direction in order to form a single profile element 2. Furthermore, the Vordererebzw. rear end of the profile element 2 are fitted in the geometry.
    11 shows schematically the bending element 2 in the region of the recess 35, which was produced with the milling device 34 according to FIG. According to Fig. 11, the recess 35 is groove-shaped, i. open towards one side, formed, with a halbkreisför¬miger cross-section is provided. As indicated by dashed lines 35 ', of course, other Nut¬formen, such as a wedge-shaped groove, in the Profilele¬ment 2 can be generated. Thereby, the bending of the Profilele¬ments 2 in the region of the groove-shaped recess 35 are released, wherein Fig. 11a, the profile element 2 in the state before
    Forming of the bending point and Fig. 11b shows the profile element 2 in the state after bending. In addition, FIG. 11 schematically shows a welding unit 39 with which the sections of the profile element 2 adjoining the groove-shaped recess 35 can be welded together after the profile element 2 has been bent.
    权利要求:
    Claims (24)
    [1]
    1. Device (1) for bending a profiled element (2), with at least one adjustable bending element (11), in order to bend the profiled element (12) by adjusting the bending element (11), characterized in that a Bearing element (4) with a passage opening (5) for the passage of the profile element (2) is provided, wherein on the bearing element (4) at least one holder (13) for the bending element (11) is adjustably arranged, and in that a bending mandrel (11) is a bending mandrel (11). 12) is provided with which a through the passage opening (5) of the bearing element (4) projecting portion of the profile element (2) is bendable.
    [2]
    2. Device (1) according to claim 1, characterized in that the bearing element (4) has a curved, in particular substantially spherical curved, guide portion (16) on which the support (13) for the bending mandrel (12) is pivotally mounted ,
    [3]
    3. Device (1) according to claim 1 or 2, characterized gekennzeich¬net that the bending mandrel (12) arcuate, in particular kreisbo¬genförmig, is curved.
    [4]
    4. Device (1) according to claim 3, characterized in that the curved guide portion (16) of the bearing element (4) has an elongated recess (17) for guiding the curved bending mandrel (12).
    [5]
    5. Device (1) according to one of claims 1 to 4, characterized in that on the holder (13) has two bending mandrels (12) are provided, wherein the two bending mandrels (12) preferably gegegengend on the holder (13 ) are arranged.
    [6]
    6. Device (1) according to claim 5, characterized in thatzwei holders (13) with two bending mandrels (12) are provided, wherein the bending mandrels (12) on the holders (13) in ver¬, preferably mutually perpendicular Ebe¬ are pivotable.
    [7]
    7. Device (1) according to any one of claims 1 to 6, characterized ge indicates that the holder (13) has a retaining ring (14, 15) on which the bending mandrel (12), preferably the two bending mandrels (12) provided is or are.
    [8]
    8. Device (1) according to claim 7, characterized in thatan outer retaining ring (14) and / or on the inside of the bearing element (4) an inner retaining ring (15) is provided on the outer side of the bearing element (4).
    [9]
    9. Device (1) according to any one of claims 1 to 8, characterized in that at least one bending mandrel (12) at the free end a guide lug (18) on which a bottom of the through opening (5) protruding portion of the profiled element (2 ) is supportable.
    [10]
    10. Device (1) according to one of claims 1 to 9, characterized in that at least one bending mandrel (12) at the free end a bending tab (18 '), which to the passage opening (5) towards or from the passage opening (5) movable away is.
    [11]
    11. Device (1) according to one of claims 1 to 10, characterized in that a feed device (6) for advancing the profile element (2) is provided in the direction of its longitudinal axis, which preferably has a guide rail (7) for the Pro¬filelement (2) ,
    [12]
    12. Device (1) according to one of claims 1 to 11, characterized in that a heating device (20) for local heating of the profile element (2) is provided.
    [13]
    13. Device (1) according to one of claims 1 to 12, characterized in that a twisting device (9) for rotating the profile element (2) is provided about its longitudinal axis.
    [14]
    14. Device (1) according to claim 13, characterized in that the twisting device (9), in particular by means of a pivoting ring (10), with the guide rail (7) for the Profil¬element (2) is connected.
    [15]
    15. Device (1) according to claim 13 or 14, characterized gekenn¬zeichnet that the twisting device (9) has a fixing element (25) for fixing the profile element (2) in the guide rail (7), so that the profile element (2) by pivoting the guide rail (7) between the fixing element (25) and the passage opening (5) is deformable.
    [16]
    16. Device (1) according to one of claims 1 to 15, characterized in that a curing and / or cooling device (27) is provided for curing or cooling of the profile element.
    [17]
    17. Device (1) according to one of claims 1 to 16, characterized in that the curing and / or cooling device (27) has a curing or cooling element (19) at the free end of the bending mandrel (12) and / or a curing or cooling element (24) in the region of the turning device (9).
    [18]
    18. Device (1) according to one of claims 1 to 17, characterized in that a unit for forming a recess (35) in the profile element (2), in particular for forming a groove-shaped recess (35) for the release of the bending of the profile element (2) and or for forming a holding opening for connection to another profile element (2), the unit preferably being designed as a milling device (34).
    [19]
    19. Device (1) according to one of claims 1 to 18, characterized in that a unit for permanently connecting the sections of the profile element (2) adjoining the groove-shaped recess (35) is provided after bending of the profile element (2), wherein the Unit is preferably designed as a welding unit (39).
    [20]
    20. Method for bending a profile element (2), wherein the profile element (2) is bent by adjusting a bending element (11), characterized in that the profile element (2) passes through a passage opening (5) of a bearing element (4) leads, whereupon a bearing element (4) held bending mandrel (12) is adjusted to bend through the passage opening (5) projecting portion of the profile element (2).
    [21]
    21. The method according to claim 17, characterized in that a profile element (2) made of plastic, a metal, a metal alloy or a material with a memory effect is bent.
    [22]
    22. The method according to claim 20 or 21, characterized in that a groove-shaped recess (38) produced in the profile element (2), in particular milled, with which the bending of the profile element (2) at the groove-shaped recess (35) freige¬stellt becomes.
    [23]
    23. The method according to claim 20 or 21, characterized in that the groove-shaped recess (35) adjacent sections of the profile element (2) after bending of the Profilele¬ments (2) on the groove-shaped recess (35) with each other Dauer¬ adhered, in particular welded, be.
    [24]
    24. The method according to any one of claims 20 to 23, characterized ge indicates that a plurality of support and / or spacer elements bil¬dende profile elements (2) are produced, which are assembled into a skeleton or lattice-like structure.
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    同族专利:
    公开号 | 公开日
    WO2015154117A1|2015-10-15|
    AT514954B1|2015-05-15|
    EP3129169A1|2017-02-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2674279A1|2012-05-31|2013-12-18|Kunststoff-Technik Scherer & Trier GmbH & Co. KG|Method for roll bending a profile, profile, method for manufacturing curved profile workpieces, curved profile workpiece, device for roll bending a profile as well as an extruded and roll bending line|
    US3296991A|1964-05-13|1967-01-10|Grand Sheet Metal Products Co|Corner construction for metal cabinets|
    FR2310814B1|1975-05-12|1979-02-23|Leroux Sa Ets|
    CH652947A5|1981-11-18|1985-12-13|O E M B S A|WIRE BENDING MACHINE.|
    FR2715334B1|1994-01-21|1996-03-08|Automatisation Ste Francaise|Machine for bending a material in a substantially straight form.|
    US6029494A|1998-11-05|2000-02-29|Wu; David|Spring producing device|
    FR2806943B1|2000-04-03|2002-08-16|Macsoft|ERASABLE FOLDING NOSE BAR BENDING MACHINE|
    DE102004002539A1|2004-01-17|2005-08-11|Rehau Ag + Co.|Bending of plastic or composite profiled sections, especially lengths of pipe, involves axial movement through heaters and bending rollers|
    AT507888B1|2009-10-16|2010-09-15|Rudolf Mag Stonawski|METHOD FOR PRODUCING A SUPPORTING DEVICE FOR A BODY PART|
    DE102011015570B4|2011-03-30|2015-01-22|Wafios Ag|Bending head for bending rod and tubular workpieces|DE102017217032A1|2017-09-26|2019-03-28|Wafios Aktiengesellschaft|Method and bending machine for producing bent parts from flat material|
    法律状态:
    2020-12-15| MM01| Lapse because of not paying annual fees|Effective date: 20200409 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50267/2014A|AT514954B1|2014-04-09|2014-04-09|Device and method for bending a profile element|ATA50267/2014A| AT514954B1|2014-04-09|2014-04-09|Device and method for bending a profile element|
    EP15728741.8A| EP3129169A1|2014-04-09|2015-04-08|Device and method for bending a profiled element|
    PCT/AT2015/050092| WO2015154117A1|2014-04-09|2015-04-08|Device and method for bending a profiled element|
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