Sheet metal material for building profiles

Abstract

The utility model relates to the field of construction, specifically to sheet metal materials intended for the manufacture of building profiles used for wall framing and suspended ceilings, as well as wall and ceiling cladding in buildings and structures. The technical result of the utility model consists in increasing the contact area of ​​the surfaces of the sheet material within the profile with the surfaces of the mating product or part (gypsum board or other plate, profile). The sheet metal material for a building profile has rows of projections and depressions on both of its surfaces, wherein the projections on one surface correspond to the depressions on the opposite surface, the projections of each row are of equal height and have flat tops located parallel to the base of the projections. 4 c.p. cl., 6 fig.

Description

[0001] Technical field

[0002] The utility model relates to the field of construction, namely to sheet metal materials intended for the manufacture of building profiles used to form the frame of walls and suspended ceilings, cladding walls and ceilings in buildings and structures.

[0003] Technology Level

[0004] The closest technical solution to the claimed utility model - the prototype is the sheet material disclosed in Russian Federation patents No. 2501617, 2448795, 87941.

[0005] A known sheet material has on both surfaces or part of the surfaces rows of protrusions and depressions, wherein the protrusions on one surface correspond to the depressions on the other opposite surface, wherein the relative position of the protrusions and depressions is such that the lines drawn along the surface of the sheet between adjacent rows of protrusions are not straight (the protrusions have different heights), and the top of each protrusion is made rounded.

[0006] The main disadvantage of the sheet material known from the prior art is the rounded top of the protrusions / depressions, which is a consequence of the fact that a tool with many teeth on its outer surface with a radius (sharp) top is used to form the sheet material, which leads to increased thinning of the metal in the top area and, accordingly, its weakening.

[0007] The rounded shape of the tops of the protrusions, as well as the different heights of the protrusions of the sheet material, leads to a decrease in the effective contact area of ​​the surface of the sheet material in the profiles with the mating surfaces of parts and products (gypsum boards or other slabs, profiles) and, thus, to a worse fit to each other, reducing the strength of the connection.

[0008] In addition, the rounded shape of the protrusions makes further processing of such a tape (profiling) more difficult; twisting and saber-shaped profiles obtained from such a tape are possible.

[0009] Essence Revealed

[0010] The claimed utility model is aimed at eliminating the above-mentioned shortcomings characteristic of the prototype.

[0011] The objective of the claimed utility model is to create sheet metal material for the manufacture of building profiles, which has increased rigidity and strength.

[0012] The technical result of the claimed utility model consists in increasing the contact area of ​​the surfaces of the sheet material in the profile with the surfaces of the mating product or part (gypsum board or other plate, profile).

[0013] The technical result of the claimed utility model is achieved in that the sheet metal material for a building profile has rows of protrusions and depressions on both of its surfaces, wherein the protrusions on one surface correspond to the depressions on the opposite surface, the protrusions of each row are made equal in height and have flat tops located parallel to the base of the protrusions.

[0014] Brief description of drawings

[0015] The features and essence of the claimed utility model are explained in the following detailed description, illustrated by drawings (see Figs. 1-6), which show the following.

[0016] Fig. 1 shows an image of the external appearance of the sheet material with an enlarged fragment of the relief surface.

[0017] Fig. 2 shows an enlarged fragment of the relief surface of the sheet material.

[0018] Fig. 3 shows an image of the relief surface of the sheet material (side view in section, section A-A in Fig. 2).

[0019] Fig. 4 shows a diagram of the knurling and calibrating rollers used for the production of sheet material.

[0020] Fig. 5 shows a particular version of a construction metal profile made from sheet material with a U-shaped cross-section.

[0021] Fig. 6 shows an image of a section of a finished construction metal profile made from sheet material (implementation option).

[0022] In Fig. 1-6, the following is indicated under the same positions:

[0023] 1 - sheet material;

[0024] 2 - profile web;

[0025] 3 - profile shelves;

[0026] 4 - knurled rollers;

[0027] 5 - calibration rollers;

[0028] 6 - ​​sheet material protrusions;

[0029] 7 - sheet material depressions;

[0030] 8 - flat tops of sheet material protrusions;

[0031] S - thickness of sheet material without protrusions;

[0032] S1 - thickness of sheet material with protrusions.

[0033] Implementation and implementation examples

[0034] The sheet material (1) has a plurality of rows of projections (6) on both of its sides, wherein each projection (6) is created by local deformation of the sheet material (1), leaving a corresponding depression (7) on the opposite side of the sheet material (1).

[0035] In embodiments, the protrusions (6) / depressions (7) on the sheet material (1) may have a lateral surface, for example, in the shape of a cylinder, a truncated cone, a truncated pyramid, a parallelepiped, a prism, etc. Accordingly, the cross-sectional shape of the protrusions (6) / depressions (7) may be, for example, rectangular or trapezoidal, and the flat top (8) located parallel to the base of the protrusion (6) / depression (7) may be, for example, round, oval, rectangular, in the form of a polyhedron, etc.

[0036] The deformation of the original sheet material (1) is more uniform and the thinning of the material (1) is minimal if the side surfaces of the protrusions (6) and depressions (7) have the shape of a truncated cone, each with a flat top (8) in the shape of a circle. The specified parameters of the protrusions (6) / depressions (7) are determined by the shape of the teeth of the tool used to knurle the relief surface onto the sheet material (1).

[0037] In embodiments, the protrusions (6) / depressions (7) on the surfaces of the sheet material (1) can be arranged, for example, in straight or spiral rows and, as a rule, at the same distance from each other.

[0038] The pitch (the repeating distance between the protrusions (6) / valleys (7)) may vary depending on the thickness of the sheet material (1) used: a larger pitch is selected when using a thicker sheet material (1) to prevent thinning of the metal during knurling. A decrease in the pitch increases the area of ​​plastic deformation due to an increase in the density of the teeth of the knurling tool (4).

[0039] In embodiments, the sheet material (1) can have different geometric dimensions (width, length, thickness) and additional grooves, stiffeners, slots and holes of various shapes.

[0040] Equal-height protrusions (6) on the surface of the sheet material (1) make it possible to obtain a strip with a uniform metal structure, which makes it possible to produce building profiles with specified properties from it and to obtain profiles without twisting and other shape deviations when profiling this strip in a profile bending tool and ensures the production of building profiles of stable quality.

[0041] The rounded shape of the forming tool teeth, the absence of sharp edges, and smooth radial transitions between the teeth and depressions on the forming tool allow for the production of processed strip without thinning the metal and without local stress concentrators in the metal.

[0042] The subsequent passage of the tape through cylindrical calibrating rollers (5) makes it possible to make the tops (8) of the projections (6) flat, with the tops being strengthened by “work hardening”.

[0043] The presence of equal-height projections (6) and flat tops (8) of the projections (6) on the surfaces of the sheet material (1) makes it possible, in comparison with the prototype, to increase the area (the plane has a larger area in comparison with the point contact of the rounded top) of the contact of the sheet material (1) of the profile with the contact surface of the product or part (plate, profile): the working contact surface of any of the elements of the profile is formed by a multitude of flat tops (8) of the projections (6) of the sheet material from which the profile is made, for better adhesion to each other, and thereby increasing the strength of the connection.

[0044] The deformation created by the knurling rollers (4) and additional cylindrical rollers (5) allows for a 15-20% strengthening of sheet galvanized carbon steel compared to smooth samples. This is due to the formation of a large number of stiffening ribs during sheet metal pressure processing and an increase in the effective thickness of the sheet material (1). Construction profiles manufactured from the declared sheet material (1) have greater contact hardness and rigidity compared to smooth sheet materials (1) profiles, allowing profiles made from this tape to withstand greater loads.

[0045] Sheet material can be produced as follows.

[0046] A metal strip of a given width and thickness is installed on the uncoiler of the automatic profile bending line and then fed into the device with knurling rollers (4).

[0047] The forming of the sheet material (1) with the original cross-section is carried out by passing it between a pair of knurling rollers (4) - cylindrical rolls, each of which has on its surface a plurality of teeth of the same shape and height, wherein each tooth has a lateral surface in the shape of, for example, a truncated cone, formed integrally with its flat base, and a flat top. The result of this processing is hardening during plastic deformation and an increase in the effective thickness of the sheet material (1). The sheet material (1) of the mentioned type is more rigid than the flat sheet material (1) from which it is made, and the mass of the material required for a specific application of this material can be reduced by using the sheet material (1) of the mentioned type instead of the flat sheet material (1).

[0048] The presence of a plurality of projections (teeth) with flat tops on one of the knurling rollers (4), each of which contacts the flat bottom of the corresponding depression on the mating knurling roller (4), ensures the formation of projections (6) with flat tops (8) on the deformable belt (1). That is, the relief surface is formed by two identical knurling rollers (4), which are installed: one in the lower position, the second - in the upper position in such a way that the projection of the lower knurling roller (4) coincides with the depression of the upper knurling roller (4) and vice versa, the projection of the upper knurling roller (4) corresponds to the depression of the lower knurling roller (4). Synchronization of the upper and lower knurling rollers (4) is carried out by a special gear reducer. Next, the tape (1) is fed into cylindrical calibrating rollers (5) for additional deformation of the tops (8) of the projections (6) of the tape (1) and creating work hardening on them.

[0049] After deformation (plastic deformation) of the strip (1), the strip (1) is fed into a profile bending mill, where the profile is formed in successive stands with all the necessary elements (stiffeners, radii, dimensions, etc.). The necessary holes can be made either in the stands of the profile bending mill or during cutting of the profile with a die. Cutting is performed without stopping the profile (in motion), which allows for more stable geometric parameters. Next, the finished profile (a possible profile variant is shown in Fig. 5) of the specified length is placed on the receiving table, folded, and packed onto pallets.

[0050] The declared sheet metal material (1) can be used in the manufacture of, for example, ceiling, wall, guide and rack building profiles of Ω-shaped, C-shaped, U-shaped, L-shaped, T-shaped sections with various longitudinal ribs.

[0051] The conducted analysis of the state of the art allowed us to establish that there are no analogues with a set of essential features identical to the essential features of the claimed sheet material, which indicates that the claimed utility model complies with the patentability criterion of “novelty”.

Claims

1. A sheet metal material for a building profile, having on both of its surfaces rows of projections and depressions, wherein the projections on one surface correspond to the depressions on the opposite surface, characterized in that the projections of each row are made equal in height and have flat tops located parallel to the base of the projections.

2. Sheet metal material according to paragraph 1, characterized in that the projections and depressions are made with a side surface in the shape of a truncated cone, cylinder, truncated pyramid, parallelepiped, or prism.

3. Sheet metal material according to paragraph 1, characterized in that the protrusions and depressions are arranged in the form of rectilinear or spiral rows.

4. Sheet metal material according to paragraph 1, characterized in that the protrusions and depressions in the rows are located at the same distance from each other.

5. Sheet metal material according to claim 1, characterized in that the flat tops of the projections have the shape of a circle, oval, rectangle, or polyhedron.

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