RU108078U1 - PROFILE FOR MANUFACTURING DOOR CANVAS - Google Patents

Abstract

The proposed technical solution of the utility model relates to the field of manufacturing metal structures for entrance doors with power structures from bent metal profiles having a closed cross section.

The technical task of the utility model is:

1. Obtaining a bent profile of closed cross section for the manufacture of door leafs, with the provision in the design of the door using metal profile with a thickness of at least 1.5 mm the required rigidity and reliability of its joints while ensuring its required durability.

2. The expansion of technological capabilities of the bent profile for the manufacture of door leaf by increasing the rigidity of its cross section.

The technical result in the claimed utility model "Profile for the manufacture of door leaf" is achieved by the fact that, compared with the invention adopted as a prototype, a bent channel profile type, made with rounded sections of the mates of its individual elements, with at least three sections of the bend containing the shelves , one of which is made with an element of double thickness, in the claimed utility model, the profile for the manufacture of door leaf is made of steel tape or sheet and having a stand, the lower part of which is bent with the mentioned bend perpendicularly with the formation of the lower said shelf, and the upper part is bent in the opposite direction to form the upper mentioned shelf with the above-mentioned elements of double thickness, and the end part of the upper shelf is bent with the said bend perpendicular to the bottom, and then bent by double bend 180 degrees to the top with the formation of a double-thickness bend parallel to the upright, while the upper layer of the steel strip or sheet of said bend is bent by the said bend towards the upper shelves with the formation in continuation of the upper shelf of a single thickness of a horizontal protrusion parallel to the lower shelf and with the formation of the two mentioned double thickness elements located on the front and rear sides of the upper shelf, the width of each of the double thickness elements being 0.30-0.35 from the width of the upper shelf, while the upper layer of a steel strip or sheet in the middle of the upper shelf along the profile section is made with a radial rounding to the top of the double thickness elements in the form of a cylindrical surface with a radius of 6 mm., with the formation of a longitudinal protrusion in the form of a stiffening rib of the upper shelf, as well as with the formation of a longitudinal groove located between the upper and lower layers of the steel tape or sheet of the upper shelf, the sum of the height of the said bend and the thickness of the upper shelf along the height of the aforementioned the protrusion in the form of a stiffener is equal to the width of the single thickness of the horizontal protrusion located parallel to the lower shelf, and the height of the rack exceeds twice the sum of the width of the upper shelf and the width of the single thickness horizontally th projection.

The presence of double thickness elements on the upper flange and the formation of a longitudinal protrusion made in the form of a stiffener on the upper surface of the upper flange, as well as the double bending thickness, allow increasing the structural strength and stiffness of the profile with the closest prototype analogue. This implementation of the profile of the required strength parameters allows you to expand the range of its use in door construction.

In addition, an additional technical result is the expansion of the technological capabilities of the bent profile for the manufacture of door leaf by increasing the rigidity of its cross section, achieved by the fact that the profile is made flexible - rolling in rolls by the method of intensive deformation.

Description

The proposed technical solution of the utility model relates to the field of manufacturing metal structures for entrance doors with power structures from bent metal profiles having a closed cross section.

Known bent profile made in the form of a rack with shelves directed in opposite directions (http: | //www.ukkon.ru/newdemon 01.2007).

The known bent profile does not provide the required rigidity and durability of the operation of the structure in the manufacture of its constituent bent profiles from metal with a thickness of 1.5 mm.

From analogues of the prior art the closest in number of essential features to the claimed utility model, the prototype can be adopted the invention of “a bent channel profile type” containing a wall and equal height vertical shelves, one of which is made with an element of double thickness, while the profile is made with rounded sections the pairing of its individual elements with four bending sections (RU N 2124408, IPC: B21D 5/06, application for invention N 97116619/02 of 10/07/1997, authors Esipov V.D., Smirnov II, Sokolov I. B. et al. Applicant and Patent Open Joint Stock Company “Cherepovets Steel Rolling Plant.” Description of the invention published on January 10, 1999).

The disadvantage of the prototype of the invention is that the known solution does not provide the required rigidity and durability of the structure in the manufacture of its constituent bent profiles from a steel tape or sheet 1.5 mm thick.

The technical task of the utility model is to obtain a bent profile of a closed cross section for the manufacture of door leafs, with the provision in the door structure using a metal profile with a thickness of at least 1.5 mm. the required rigidity and reliability of its joints while ensuring its required durability.

The technical result in the claimed utility model "Profile for the manufacture of door leaf" is achieved by the fact that, compared with the invention adopted as a prototype, a bent channel profile type, made with rounded sections of the mates of its individual elements, with at least three sections of the bend containing the shelves , one of which is made with an element of double thickness, in the claimed utility model, the profile for the manufacture of door leaf is made of steel tape or sheet and having a stand, the lower part of which is bent with the mentioned bend perpendicularly with the formation of the lower said shelf, and the upper part is bent in the opposite direction to form the upper mentioned shelf with the above-mentioned elements of double thickness, and the end part of the upper shelf is bent with the said bend perpendicular to the bottom, and then bent by double bend 180 degrees to the top with the formation of a double-thickness bend parallel to the upright, while the upper layer of the steel strip or sheet of said bend is bent by the said bend towards the upper shelves with the formation in continuation of the upper shelf of a single thickness of a horizontal ledge parallel to the lower shelf and with the formation of the two mentioned double thickness elements located on the front and rear sides of the upper shelf, the width of each of the double thickness elements being 0.30-0.35 from the width of the upper shelf, while the upper layer of a steel strip or sheet in the middle of the upper shelf along the profile section is made with a radial rounding to the top of the double thickness elements in the form of a cylindrical surface with a radius of 6 mm., with the formation of a longitudinal protrusion in the form of a stiffening rib of the upper shelf, as well as with the formation of a longitudinal groove located between the upper and lower layers of the steel tape or sheet of the upper shelf, the sum of the height of the said limb of the thickness of the upper shelf along the height of the said protrusion in the form of a stiffener, is equal to the width of a single thickness of a horizontal protrusion parallel to the bottom shelf, and the height of the rack exceeds twice the sum of the width of the top shelf and the width of a single thickness of a horizontal about the ledge.

The presence of double thickness elements on the upper flange and the formation of a longitudinal protrusion made in the form of a stiffener on the upper surface of the upper flange, as well as the double bending thickness, allow increasing the structural strength and stiffness of the profile with the closest prototype analogue. This implementation of the profile of the required strength parameters allows you to expand the range of its use in door construction.

In addition, an additional technical result is the expansion of the technological capabilities of the bent profile for the manufacture of door leaf by increasing the rigidity of its cross section, achieved by the fact that the profile is made flexible - rolling in rolls by the method of intensive deformation.

In the claimed utility model, the profile for the manufacture of door leaf is made in rolls by the method of intensive deformation.

In the manufacture of the profile in rolls by traditional profiling, as in the invention adopted as a prototype, monotonous tension of the workpiece is carried out.

In the manufacture of profiles in wolves by traditional profiling, the mode of forming the radius of the bend changes in transitions.

In the manufacture of profiles in rolls by the method of intensive deformation, the mode of forming the bending radius is constant over transitions.

In the manufacture of profiles in rolls by traditional profiling, additional forces are not applied.

In the manufacture of profiles in rolls by the method of intensive deformation, additional tangential forces are applied.

In the manufacture of profiles in rolls by traditional profiling, an open release caliber is used.

In the manufacture of profiles in wolves by the method of intensive deformation, a closed caliber is used.

With intensive shaping, the neutral strain layer practically coincides with the middle line, while with traditional profiling the neutral strain layer shifts to the inner contour of the bend zone. It follows that in the manufacture of profiles in rollers by the method of intensive deformation, the outer contour of the bend zone is unloaded, which allows for smaller bend radii without destroying the workpiece.

This embodiment of the profile by the method of intensive deformation in the rolls of the roll forming mill allows you to create the design of the door leaf of high rigidity, increase the manufacturability of its manufacture and ensure the durability of operation by strengthening those section elements to which the workloads are transmitted.

The inventive utility model profile for the manufacture of door leaf is illustrated by drawings, which depict:

Figure 1. The general view of the section of the profile for the manufacture of door leaf is presented.

Figure 2. The cross section of the profile for the manufacture of door leaf is shown.

The essence of the utility model.

The essence of the claimed utility model is to optimize some geometric parameters of the cross-section of the profile for the manufacture of door leafs from steel strips or sheets with a thickness of 1.5 mm, which makes it possible to use a sufficiently strong, but relatively low-plastic steel with a thickness of up to 1.5 mm. inclusive, providing high rigidity of the profile for the manufacture of door leaf by bending-rolling in the wolves of the roll-forming mill by the method of intensive deformation of the material. Moreover, the indicated ratios of the profile parameters guarantee the necessary accuracy of the profile dimensions and the absence of crack formation during its formation on the rolls by the method of intensive deformation of the material. In this case, the internal radii of curvature of the mating sections of the individual elements in the places of the bending sections are 1.5 mm.

In the manufacture of profiles in rolls by the method of intensive deformation, the mode of forming the bending radius is constant along the transitions, additional tangential forces are applied and the closed caliber is used.

With intensive shaping, the neutral strain layer practically coincides with the middle line, while with traditional profiling the neutral strain layer shifts to the inner contour of the bend zone. It follows that in the manufacture of profiles in rollers by the method of intensive deformation, the outer contour of the bend zone is unloaded, which allows for smaller bend radii without destroying the workpiece.

The profile for the manufacture of door leaf contains a rack 1 (figure 1, 2), the lower part of which is bent perpendicularly to bend, with the formation of the lower shelf 2 (figure 1, 2). The upper part of the rack is bent perpendicularly bent in the opposite direction, with the formation of the upper shelf 3 (Fig.1, 2). The front part of the upper shelf 3 (Fig. 1, 2) is bent perpendicular to the bottom, and then bent by a double bend 180 degrees to the top, with the formation of a parallel rack 1 (Fig. 1, 2) of double bending thickness 4 (Fig. 1, 2). The free end of the strip of tape or limb sheet 4 (1, 2) is bent by bending with the formation in cross section of the profile of the elements of double thickness 5 (1, 2) located in the front and rear parts of the upper shelf 3 (1, 2 ) and the formation of a single thickness of the horizontal protrusion 6 (Fig.1, 2) located parallel to the lower shelf 2 (Fig.1, 2). The width of each of the elements of double thickness 5 (figure 1, 2) is 0.30-0.35 of the width of the upper shelf 3 (figure 1, 2). The upper layer of a steel tape or sheet in the middle of the upper shelf 3 (Fig. 1, 2) along the profile cross section is made with a radial rounding to the top from the elements of double thickness 5 (Fig. 1, 2) in the form of a cylindrical surface with a radius of 6 mm., with the formation of a longitudinal protrusion 7 (figure 1, 2) in the form of stiffeners of the upper flange 3 (figure 1, 2), as well as with the formation of a longitudinal groove 8 (figure 1, 2) located in the center of the section of the profile between the upper and the lower stripes of tape or sheet of the upper shelf 3 (1, 2). In this case, the sum of the height of the limb 4 (Fig. 1, 2) and the thickness of the upper shelf 3 (Fig. 1, 2) along the height of the longitudinal protrusion 7 (Fig. 1, 2) is equal to the width of the single thickness of the horizontal protrusion 6 (Fig. 1, 2 ) located parallel to the lower shelf 2 (Fig. 1, 2), and the height of the rack 1 (Fig. 1, 2) exceeds the doubled sum of the width of the upper shelf 3 (Fig. 1, 2) and the width of a single thickness of the horizontal protrusion 6 (Fig. 12). Such a profile allows you to get an element that, in addition to the required strength parameters allows you to expand the range of its use in the design of the door leaf in various combinations and combinations.

Execution Example:

The profile is made of steel tape or sheet 1.5 mm thick. The stand has a height of 63 mm, the width of the lower shelf is 20 mm, the bend downwards has a height of 9 mm. the sum of the height of the limb 9 mm and the thickness of the upper shelf height of the protrusion of 1.5 mm is 10.5 mm., equal to the width of the single thickness of the horizontal protrusion, also 10.5 mm. Stand height 63 mm. exceeds the doubled sum of the width of the upper flange 17 mm. and the width of the single thickness of the horizontal protrusion of 10.5 mm Sickle length of 1 m of profile no more than 1 mm. The twisting angle along the length of 1 m of the profile is not more than 1 degree. The waviness is not more than + - 0.8 mm. The maximum deviation of angles + - 1 degree.

This embodiment of the profile by the method of intensive deformation in the rolls of the roll forming mill allows you to create the design of the door leaf of high rigidity, increase the manufacturability of its manufacture and ensure the durability of operation by strengthening those section elements to which the workloads are transmitted.

Claims (2)

1. The profile for the manufacture of door leaf is made of steel tape or sheet and having a stand, the lower part of which is bent by the said bend perpendicularly with the formation of the lower said shelf, and the upper part is bent in the opposite direction with the formation of the upper said shelf with the said elements of double thickness, and the end a part of the upper shelf is bent by the said bend perpendicular to the bottom, and then bent by a double bend by 180º to the top with the formation of a bend of double thickness located parallel a cradle, while the upper layer of a steel strip or sheet of the said bend is bent by the said bend towards the upper flange with the formation of a single thickness of a horizontal protrusion parallel to the lower flange over the upper flange and with the formation of the two mentioned double thickness elements located on the front and rear sides the upper shelf, and the width of each of the elements of double thickness is 0.30-0.35 of the width of the upper shelf, while the upper layer of steel tape or sheet in the middle of the upper shelf the profile cross-section is made with a radial rounding to the top of the double thickness elements in the form of a cylindrical surface with a radius of 6 mm, with the formation of a longitudinal protrusion in the form of a stiffening rib of the upper shelf, as well as with the formation of a longitudinal groove located between the upper and lower layers of the steel tape or sheet of the upper shelves, the sum of the height of the said limb and the thickness of the upper shelf along the height of the said protrusion in the form of a stiffener is equal to the width of the single thickness of the horizontal protrusion lower shelf, and the height of the rack exceeds twice the sum of the width of the upper shelf and the width of a single thickness of the horizontal ledge. 2. The profile for the manufacture of door leaf according to claim 1, characterized in that the profile is made flexible - rolling in rolls by intensive deformation.