DE102011108679A1 - CONSTRUCTION PROFILE AND METHOD AND DEVICE FOR MANUFACTURING SUCH A CONSTRUCTION PROFILE - Google Patents

Abstract

It is described a construction profile, in particular a T, C, U, V, H, L, M, W, Ω or hat profile, with a particular metallic, elongated body. The main body comprises a longitudinally extending, substantially closed middle region and at least two longitudinal regions extending on both sides of the central region. In the longitudinal regions, widened openings are arranged transversely to the longitudinal extent of the base body. In the middle region of the base body, a profile recess or elevation extending in the longitudinal direction of the main body over its entire length is formed with lateral guide surfaces. Furthermore, a method and an apparatus for producing such a construction profile are described.

Description

The present invention relates to a construction profile, in particular a T, C, U, V, H, L, M, W, Ω or hat profile, as well as a method and an apparatus for producing such a construction profile. Construction profiles of this type are produced in many cases from a metallic, elongated body, such as a metal sheet. The production often takes place in the so-called online process, d. H. a correspondingly elongated material web is subjected during the forward movement of the material web in the longitudinal direction of a plurality of forming steps in order to achieve the final profile shape. It is particularly important that high processing speeds of up to 150 m / min are achieved in order to achieve the highest possible throughput.

It is also essential with such construction profiles that the costs are predominantly determined by the material costs. This means that by reducing material consumption, the total cost of the construction profile can be significantly reduced.

It is an object of the present invention to specify a construction profile as well as a method and a device for producing a construction profile, which can be produced in a simple manner and at low cost, in particular in the online process.

A construction profile according to the invention comprises a particularly metallic elongate base body which comprises a longitudinally extending, essentially closed central region and at least two longitudinal regions extending on both sides of the central region, in which openings which are widened transversely to the longitudinal extent of the base body are arranged, wherein in the middle region of the Base body is formed at least one in the longitudinal direction of the body over its entire length extending profile depression or increase with lateral guide surfaces.

In the method according to the invention, at least one profile recess or elevation extending in the longitudinal direction is formed with lateral guide surfaces in a middle region of an elongate material web, substantially slot-shaped openings are introduced into at least two longitudinal regions of the material web extending on both sides of the middle region, the profile depression or elevation during a longitudinal movement of the web along a guide portion guided so that a movement of the central region is prevented transversely to the longitudinal direction and substantially in the plane of the web through the interlocking profile recess or increase and the guide portion, and the openings during the longitudinal movement of the web through a Pulling the longitudinal areas expanded transversely to the longitudinal direction.

The device according to the invention comprises a profiling unit for producing the profile recess or elevation in the material web, a cutting unit for producing the slot-shaped openings, a widening unit for widening the openings and a guide section for longitudinal guidance of the profile recess or elevation, the guide section thus engaging in the profile recess or the profile increase overlaps that a movement of the middle region of the material web is prevented transversely to the longitudinal direction and substantially in the plane of the material web.

According to the invention, therefore, the openings in the longitudinal areas, for example, not by material wastes punching, but generated by a flaring process. In order to be able to ensure a uniform widening of the openings in the two longitudinal areas, a profile recess or elevation with lateral guide surfaces is thereby formed, especially in the middle area. When mounting the openings is ensured by the cooperating with the profile recess or increase guide portion that the central region is fixed in the transverse direction, so that the openings are widened uniformly in both longitudinal regions. Without the fixation over the guide section there is the danger that the openings in one longitudinal area are widened more than the openings in the other longitudinal area, or that even only openings in one of the longitudinal areas are widened, while the openings in the other longitudinal area are in their original slot-shaped, remain unexpanded state.

Advantageously, the profile recess may be formed as a guide groove and / or the profile elevation as the rear region of a guide groove. Such a guide groove can be embossed in a simple manner, which can be done directly in the online process. The profile recess or increase can thus be generated directly during the longitudinal movement of the material web. Also, the slot-shaped openings can be advantageously produced during the longitudinal movement of the material web, in order to ensure in this way a single-stage on-line production process.

According to an advantageous embodiment of the invention, the longitudinal regions comprise at least two partial longitudinal regions arranged side by side in the longitudinal direction, which in each case are folded over in order to form the widened openings, web-shaped sections are integrally connected to each other. The openings can thus be produced by folding over these web-shaped sections, which in each case connect two partial longitudinal areas of the respective longitudinal area in one piece. The openings are produced in this case by a so-called folding process. In principle, it is also possible, for example, for the openings to be produced by a widening process of parallel slot-shaped openings arranged alternately to one another. These can be widened, for example, to rhombic openings by the longitudinal regions are pulled apart transverse to their longitudinal extent.

According to a further advantageous embodiment of the invention, the construction profile comprises a double-walled region with two surface sections, wherein the widened openings are formed in the two surface sections of the double-walled region. The longitudinal areas can be bent over after the widening of the openings relative to the central region, wherein preferably the central region is reshaped so that the longitudinal regions form the double-walled region.

Advantageously, each one adjoining the respective longitudinal region outer lying region, which may be formed in particular without openings, are bent over the respective longitudinal region. The resulting construction profile then comprises correspondingly bent outer regions, in which, in particular, no openings are formed.

In this way, advantageously, the construction profile as a T-profile rail, in particular for supporting plate-shaped elements, preferably for the insertion of ceiling panels for grid ceilings, are formed. In this case, the middle region can form a top flange, the double-walled region a web, and the outer regions a bottom flange of the T-profile rail. Since the web is double-walled, it is not disadvantageous for the stability that the openings are formed in this area.

To increase the stability, corrugations may preferably be formed in the longitudinal regions. These can extend in particular in the areas between the openings and thus extend transversely to the longitudinal extent of the longitudinal areas. The beads can extend over the entire width of the longitudinal areas or only over a part thereof. In particular, it is also possible that a plurality of beads in the edge regions of the longitudinal regions are connected to each other via further beads extending in the longitudinal direction. In this case, the beads may form a conductor pattern or one or more, in particular, intermeshing comb structures. To produce the beads, these can be embossed into the longitudinal regions, in particular in the online process. However, it is also possible that the beads are not directly embossed, but the material areas of the longitudinal areas surrounding the beads are embossed, so that the non-embossed areas ultimately form protruding beads.

The beads can be advantageously formed after the production of the openings. The openings in this case form compensating sections, which essentially absorb material stresses occurring due to the embossing process, so that a waviness or bulging of the material web caused by the embossing process outside the embossings is prevented or at least minimized. This is especially true when the openings are at least partially or completely disposed within the imprints. The maximum depth of the embossings may preferably be at least approximately 2 times, in particular at least approximately 3 times, preferably at least approximately 5 times, the material thickness of the starting material of the material web. Even with these unusually deep embossing unwanted waviness or bulging of the web is avoided and at the same time achieved a stiffening of the material through the openings.

Further advantageous embodiments are specified in the subclaims.

The invention will be described below purely by way of example with reference to a T-rail with reference to the drawings. In principle, the invention, as mentioned above, can also be used for other construction profiles. In the drawings show:

1 a perspective view of a frame construction with inventively designed T-profile rails to form a grid ceiling,

2 a perspective view of a designed as a T-rail rail according to the invention from 1 .

3 a plan view of a material web for the production of the construction profile according to 2 .

4 a schematic representation of an apparatus for producing a construction profile designed according to the invention,

5 a cross section through the material web according to 3 and

6 a perspective view of a V-profile according to the invention.

1 shows a frame construction 1 consisting of a plurality of parallel and perpendicular thereto profile rails 2 consists.

The profile rails 2 have a T-shaped cross section, with an elongated web 3 , as well as a lower flange adjoining its lower longitudinal edge 4 , The bottom strap 4 consists of two bends of the bridge 3 each outward, through the two Untergurtabschnitte 5 . 6 are formed, the support surfaces for plate-shaped elements 7 To form, for example, ceiling panels.

The profile rails 2 have on each of their upper longitudinal side a top chord 8th , which is designed as a hollow profile and for coupling the rails 2 on suspension elements 9 . 10 serves.

Out 2 is the structure of the rail according to the invention 2 more clearly recognizable.

In particular, is off 2 to realize that the bridge 3 a double-walled area 11 with two surface sections 12 the profile rail 2 forms, in each case a multiplicity of openings 13 are formed.

The profile rail 2 is along a longitudinally extending, with the web 3 coincident center plane formed symmetrically and comprises a main body 14 comprising a longitudinally extending central region 15 , on both sides of the mid-range 15 longitudinally extending longitudinal areas 16 and to the longitudinal areas 16 each subsequent, also extending in the longitudinal direction outside areas 17 includes. The middle area 15 is designed as a hollow profile and forms the upper flange 8th , The two longitudinal areas 16 lie against each other and form the double-walled area 11 and with it the jetty 3 , The two outer areas 17 are each opposite the longitudinal areas 16 bent by 90 ° and form the two Untergurtabschnitte 5 . 6 ,

On the top of the upper girth 8th and thus in the middle range 15 is a trained as a guide groove profile recess 18 formed over the entire length of the rail 2 extends. The profile recess has two lateral guide surfaces 19 for lateral guidance in the production of the profile rail 2 are formed, as will be explained in more detail below.

How to continue 2 it can be seen that are in the longitudinal areas 16 trained openings 13 arranged alternately. Here are the longitudinal areas 16 each in two longitudinally juxtaposed partial longitudinal areas 21 . 22 split, leading to the formation of the openings 13 each by folded, web-shaped sections 23 are integrally connected to each other. The openings 13 are designed as widened openings, as will also be explained in more detail below. While the openings 13 in the two longitudinal areas 16 are each arranged so that they are aligned with each other, it is in principle also possible that the openings 13 in the one longitudinal area 16 opposite the openings 13 in the other longitudinal area 16 are arranged offset so that the openings 13 each partially or completely by the material of the respective opposite longitudinal region 16 are covered.

In the longitudinal areas 16 are each cross-beads 41 formed, extending into the areas between the openings 13 extend into it. The cross seeps 41 are at their outer ends each with longitudinal beads 42 connected, so that two comb-like structures are formed. This transverse and longitudinal beading 41 . 42 can be either directly embossed or it can be between the transverse and longitudinal beads 41 . 42 lying material areas 43 be embossed, so that the transverse and longitudinal beads 41 . 42 to remain as surveys. In this case it is achieved that the material stresses occurring during the embossing process are from the openings located within the embossed regions 13 be absorbed, so that an undesirable ripple or buckling of the longitudinal areas 16 is avoided.

3 shows a plan view of an elongated material web 24 for the production of the profile rail 2 along its longitudinal direction according to an arrow 25 is moved. The material web 24 is designed as a flat material web, in 3 by dashed lines 26 . 27 each bending edges are indicated, along which each of the outer areas 17 opposite the longitudinal areas 16 or the longitudinal areas 16 opposite the middle section 15 be bent over to ultimately the rail 2 according to 2 to create.

In the web 24 are in the longitudinal areas 16 the openings 13 not yet shown in its expanded form, but only slot-shaped openings 26 present, for example, by a laser cutting method, a Hubstanzverfahren or a rotary cutting method are introduced.

The generation of the profile rail 2 and the widened openings 13 will be described below on the basis of 4 and 5 explained in more detail.

The material web 24 is in the continuous process, for example, a role 29 unwound and over guide rollers 30 a profiling unit 31 fed. In this is the profile recess 18 continuously imprinted, as is in 4 at the position 32 is indicated. In a further forward movement in the longitudinal direction according to the arrow 25 becomes the material web 24 a cutting unit 33 fed, in which the slot-shaped openings 28 be generated. Then the web of an optional embossing unit 44 for generating the transverse and longitudinal corrugations 41 . 42 be supplied.

Subsequently, the material web 24 a widening unit 34 fed. In the expansion unit 34 are leadership sections 35 . 36 provided with the profile recess 18 so interact that a movement of the mid-range 15 the material web 24 transverse to the longitudinal direction and substantially in the plane of the web 24 is prevented.

For this purpose, the guide section engages 35 in the profile recess 18 from above, during the guiding section 36 the corresponding profile increase on the other side of the material web 24 embraces. The guide section 35 lies on the guide surfaces 19 the profile recess 18 and thus prevents movement transverse to the longitudinal extent of the material web 24 , Similarly, the guide section is located 36 on the corresponding outer surfaces of the profile increase to also avoid a transverse displacement.

Basically, instead of two such guide sections 35 . 36 also only one such guide section can be provided in each case. On the opposite surface of the material web, as required, another suitable support or guide surface for the material web 24 be provided. In addition, the profile recess can also from below into the web 24 be introduced, so that a corresponding profile elevation upward from the web 24 protrudes.

The material web guided in this way 24 will be in the expansion unit 34 widened by the two outer longitudinal edges 37 . 38 the material web 24 taken and according to arrows 39 . 40 transverse to the longitudinal extent and substantially in the plane of the material web 24 be pulled apart. Because the material web 24 over the profile recess 18 and the guide sections 35 . 36 is fixed in the transverse direction, in each case the disassembly on both sides of the central region 15 lying longitudinal areas 16 applied in an identical manner with corresponding Aufziehkräften, whereby the slot-shaped openings 28 be widened evenly in both longitudinal areas until the in 2 illustrated expanded openings 13 are formed. By fixing the middle area 15 over the profile recess 18 and the guide sections 35 . 36 This ensures that the openings 13 in both longitudinal areas 16 be widened evenly.

Subsequently, in this way, the expanded material web in a forming station, not shown, to the in 2 shown rail 2 be transformed by the outside bending areas 17 along the dashed line 26 opposite the longitudinal areas 16 and these along the dashed lines 27 opposite the middle section 15 be bent over. The middle area 15 is in addition to a hollow profile with square cross-section or other suitable cross-section bent, as shown in 2 can be seen.

6 shows an inventively designed V-profile. The longitudinal areas 16 are V-shaped folded against each other and include as to 2 described the openings 13 , The profile recess 18 coincides with the folded longitudinal edge between the legs of the V-profile and is therefore hardly visible. As previously described, the openings 13 by pulling the longitudinal areas apart 16 widened, with the middle range 15 over the profile recess 18 is fixed in the transverse direction.

LIST OF REFERENCE NUMBERS

1

frame construction

2

rail

3

web

4

lower chord

5

Untergurtabschnitt

6

Untergurtabschnitt

7

plate-shaped elements

8th

upper chord

9

Suspension element

10

Suspension element

11

double-walled area

12

surface sections

13

openings

14

body

15

the central region

16

longitudinal regions

17

outside areas

18

profile depression

19

guide surfaces

21

Partial longitudinal sections

22

Partial longitudinal sections

23

web-shaped sections

24

web

25

arrow

26

dashed line

27

dashed line

28

slotted openings

29

role

30

guide rollers

31

profile unit

32

position

33

cutting unit

34

expanding unit

35

guide section

36

guide section

37

longitudinal edge

38

longitudinal edge

39

arrow

40

arrow

41

transverse corrugations

42

longitudinal beads

43

material areas

44

embossing unit

Claims (16)

Construction profile, in particular T, C, U, V, H, L, M, W, Ω or hat profile, with a particular metallic, elongated body ( 14 ) having a longitudinally extending, substantially closed central region ( 15 ) and at least two on both sides of the mid-range ( 15 ) extending longitudinal areas ( 16 ), in which transverse to the longitudinal extent of the base body ( 14 ) expanded openings ( 13 ), wherein in the middle region ( 15 ) of the basic body ( 14 ) at least one in the longitudinal direction of the base body ( 14 ) over its entire length extending profile depression ( 18 ) or increase with lateral guide surfaces ( 19 ) is trained. Construction profile according to claim 1, characterized in that the profile recess ( 18 ) is designed as a guide groove. Construction profile according to claim 1 or 2, characterized in that the profile elevation is formed as a rear region of a guide groove. Construction profile according to at least one of the preceding claims, characterized in that the longitudinal areas ( 16 ) at least two longitudinally juxtaposed partial longitudinal areas ( 21 . 22 ), which are used to form the widened openings ( 13 ) each by folded, web-shaped sections ( 23 ) are integrally connected. Construction profile according to at least one of the preceding claims, characterized in that the construction profile has a double-walled area ( 11 ) with two surface sections ( 12 ) and that the flared openings ( 13 ) in the two surface sections ( 12 ) of the double-walled area ( 11 ) are formed. Building profile according to at least one of the preceding claims, characterized in that the flared openings ( 13 ) longitudinal areas ( 16 ) each outer areas ( 17 ), in particular no openings ( 13 ) are formed. Construction profile according to at least one of the preceding claims, characterized in that the construction profile as a T-profile rail ( 2 ), in particular for carrying plate-shaped elements ( 7 ), preferably for the laying-in of ceiling slabs for grid ceilings, and the middle area ( 15 ) a top chord ( 8th ), the double-walled area ( 11 ) a footbridge ( 3 ) and the external areas ( 17 ) a lower flange ( 4 ) of the T-profile rail ( 2 ) form. Method for producing a particularly metallic construction profile, in particular a construction profile according to one of the preceding claims, in which a central area ( 15 ) of an elongated material web ( 24 ) at least one longitudinally extending profile depression ( 18 ) or increase with lateral guide surfaces ( 19 ) is formed, in at least two on both sides of the central region ( 15 ) extending longitudinal areas ( 16 ) of the material web ( 24 ) substantially slit-shaped openings ( 28 ), the profiled recess ( 18 ) or increase during a longitudinal movement of the material web ( 24 ) along a guide section ( 35 . 36 ) is guided so that a movement of the central area ( 15 ) transversely to the longitudinal direction and substantially in the plane of the material web ( 24 ) by the interlocking profile recess ( 18 ) or increase and the leadership section ( 35 . 36 ), and the openings ( 28 ) during the longitudinal movement of the material web ( 24 ) by pulling the longitudinal areas ( 16 ) are widened transversely to the longitudinal direction. Method according to claim 8, characterized in that the profile recess ( 18 ) or increase during the longitudinal movement of the material web ( 24 ) is produced. A method according to claim 8 or 9, characterized in that the slot-shaped openings ( 28 ) during the longitudinal movement of the material web ( 24 ) be generated. Method according to at least one of claims 8 to 10, characterized in that the openings ( 28 ) by folding over web-shaped sections ( 23 ), each of which has two partial longitudinal areas ( 21 . 22 ) of the respective longitudinal area ( 16 ) connect in one piece. Method according to at least one of claims 8 to 11, characterized in that after the widening of the openings ( 28 ) the longitudinal areas ( 16 ) compared to the middle range ( 15 ) are bent over. Method according to at least one of Claims 8 to 12, characterized in that the middle region ( 15 ) is reshaped so that the Longitudinal areas ( 16 ) a double-walled area ( 11 ) form. Method according to at least one of Claims 8 to 13, characterized in that each one adjoins the respective longitudinal region ( 16 ) subsequent external area ( 17 ), in particular no openings ( 28 ), opposite to the respective longitudinal region ( 16 ) is bent over. Method according to at least one of claims 8 to 14, characterized in that through the middle region ( 15 ) a top chord ( 8th ), through the double-walled area ( 11 ) a footbridge ( 3 ) and through the external areas ( 17 ) a lower chord ( 4 ) of a T-profile rail ( 2 ) is formed. Device for carrying out the method according to one of Claims 8 to 15, having a profiling unit ( 31 ) for generating the profile recess ( 18 ) or increase in the material web ( 24 ), with a cutting unit ( 23 ) for generating the slot-shaped openings ( 28 ), with an expansion unit ( 34 ) for expanding the openings ( 28 ) and with the guide section ( 35 . 36 ) for longitudinal guidance of the profile recess ( 18 ) or increase, wherein the guide section ( 35 . 36 ) so in the profile well ( 18 ) or overrides the profile increase, that a movement of the central area ( 15 ) of the material web ( 24 ) transversely to the longitudinal direction and substantially in the plane of the material web ( 24 ) is prevented.

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