RU2395653C1 - Meshy joint displacement section and method for its manufacturing - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention refers to construction industry, and namely to manufacturing and design of meshy joint displacement profile. Specified number of notch groups rows is arranged along the whole width to comply with number of sections simultaneously produced from single stock, avoiding areas of solid metal at its edges, between rows and groups of notches. In each row of notch group notches are equal to length, parallel to each other and are arranged at the angle opposite to each other. Further longitudinal chutes are shaped. In the subsequent stands of profile-bending mill notches are drawn due to serial formation of two walls coupled along radius to the specified height, from sections of solid metal symmetrically to longitudinal axis of each row of notch group. At the same time rows of notch groups are transformed into meshy sections with cells in the form of parallelogram. After section walls have been produced with specified height, chutes are rolled until horizontally flat. Further longitudinal cutting of stock is carried out. Then arched shape is imparted to flat bases of sections by rolls of profile-bending mill, and sections are cut with the necessary length. Sections have two side walls of specified height coupled along radius, and arched notched-drawn bases that outgo from them towards opposite directions with rows of cells in the form of parallelogram arranged at the angle to longitudinal axis towards each other.

EFFECT: reduced consumption of metal.

2 cl, 5 dwg

Description

The invention relates to the field of construction, in particular to a method for the manufacture and construction of a beacon mesh profile used as a supporting guide base for plastering to obtain a flat surface.

Known profiles of lighthouse perforated firms: Tigi Knauf, Internet address: www.parutonn.ru, Stroy Resource LLC, Internet address: www.stanprof.ru manufactured on roll forming mills equipped with additional equipment for applying perforation.

The closest analogue that matches the purpose of the claimed invention is the profile RU 20330 U1 E04F 13/08, 10.27.2001.

The profile contains two walls of a given height, conjugated by a radius, and perforated bases symmetrically extending from them in opposite directions. Punching perforations in the form of round holes or slots of a given shape, regardless of the method of their manufacture (by a stamp or by installing a rotary), reduces the metal consumption of the finished profile, but does not affect the width of the initial workpiece.

An object of the present invention is to save metal, i.e. the development of such a method of manufacturing a perforated beacon profile, which, while maintaining the same geometric characteristics of the product: the height of the walls and the width of the base, would have a smaller width of the original workpiece.

This problem is solved by changing the manufacturing technology of the profile through the use of an expanded metal method for producing perforation on automatic cold profiling lines.

A known method of manufacturing a mesh profile RU 2275268 C2, B21D 47/02, 04/27/2006, comprising applying to the workpiece pairwise symmetrical groups of rows of grooves, equal in length and directed towards each other (herringbone) at an angle to the longitudinal axis of symmetry, excluding areas of solid metal along its edges and between rows, and the subsequent deformation of the workpiece by stretching it. The workpiece is stretched by applying a pair of forces directed vertically up or vertically down the axis of symmetry of each solid metal section, with the formation of longitudinal corrugations between the rows and longitudinal grooves on the edges of the workpiece. With the successive movement of the workpiece from the cage into the cage, the protrusions of the outer diameters of the upper rollers increase, and the troughs of the lower ones decrease correspondingly, as a result of which the pairwise symmetrical groups of rows of notches are converted into mesh sections: with cells in the form of a parallelogram of the calculated width, and after stretching is completed, the corrugated workpiece is rolled so that the corrugations are flattened, and along the axis of symmetry of the sections of solid metal (i.e., along the axis of symmetry of the corrugations), stretch marks formed during the process remain and gutters.

This method of manufacturing mesh profiles is technologically advanced for the production of mesh panels, in which further profiling to a given cross section is not required. Mesh profiles (panels) obtained by the above method are used in fixed formwork for the construction of foundations or monolithic walls.

The proposed method for manufacturing a beacon mesh profile differs from the analogue in that rows of groups of notches are applied to the blank, rather than pairwise symmetrical groups of rows of notches, equal in length and directed towards each other at an angle to the longitudinal axis of symmetry, excluding sections of solid metal not only along its edges and between rows, as well as between groups of grooves, and after the subsequent deformation of the workpiece by stretching it does not roll corrugations, since instead of corrugations in the proposed method are formed Tenko profile fillet radius. Then, longitudinal cutting of the workpiece is carried out, dividing the corrugated sheet into rows of beacon profiles, in which the flat base has perforation with cells in the form of a parallelogram. Then, to improve the fit of the plaster to the bottom of the base, it is given an arcuate shape of a given radius with rolls of a roll forming mill and a section of profiles of the required length is produced.

A method of manufacturing a beacon mesh profile (see figure 1) is carried out from the line of automatic cold profiling as follows.

The thin-sheet blank from the unwinder is fed into the rolls of a rotary installation, which, throughout the entire width of the blank, cause cuts in the form of a given number of rows of groups, excluding sections of solid metal along its edges, between rows and groups of cuts (see Fig. 2). The number of rows of groups of notches corresponds to the number of profiles simultaneously made from one blank. In each row, the notch groups are made equal in length, parallel to each other and located at an angle to the longitudinal axis towards each other.

Next, the workpiece enters the roll forming mill, in the first stand of which longitudinal grooves are formed in the form of a triangle between the rows of each group of cuts and in the form of a lock at the edges. (see figure 3). Formed gutters are necessary for fixing the workpiece, they provide input and retention of the workpiece in the rolls of the roll forming mill during the drawing process. In the following stands of the roll forming mill, the notches are drawn through the successive formation of two walls of the beacon profile, radiused to a predetermined height, from solid metal sections symmetrically to the longitudinal axis of each row of the notch group (see Fig. 4). All pairs of rolls of the roll forming mill for fixing the workpiece during the drawing process are installed along the axis of symmetry of the longitudinal grooves and are made in such a way that the protrusions on one and the corresponding troughs on the other are identical to the contour of the grooves in the form of a triangle between the rows of each group of grooves and in the form of a lock at the edges.

Pairs of rollers for the sequential formation of two walls of the beacon profile, conjugated by a radius, at the same time stretch the notches to form cells in the form of a parallelogram. They are installed along the symmetry axis of each row of the group of notches directed towards each other, and with the successive movement of the workpiece from the stand to the stand, the protrusions of the outer diameters of the lower rollers increase, the hollows of the upper ones decrease accordingly, as a result, the walls of the beacon profile conjugate with a radius to a predetermined height of sections of solid metal symmetrically to the longitudinal axis of each row of a group of notches. In this case, the rows of groups of notches are converted into mesh sections with cells in the form of a parallelogram. After receiving the walls of the profiles of a given height, paired with a radius, and flat bases with cells in the form of a parallelogram, the gutters are rolled up to horizontal alignment.

Next, longitudinal cutting of the workpiece is carried out, dividing the corrugated sheet into rows of beacon profiles, in which the flat base has perforation with cells in the form of a parallelogram. Then, the flat bases of the profiles are arched in a predetermined radius with the rolls of the roll forming mill and the profiles of the required length are cut.

The beacon mesh profiles made in this way (Fig. 1) contain two side walls 1 of a given height H, conjugated by a radius, and perforated bases 2 having an arcuate shape symmetrically extending from them in opposite directions, with rows of expanded metal cells 3 in the form of a parallelogram, located at an angle to the longitudinal axis towards each other.

Claims (2)

1. A lighthouse mesh profile, containing two walls of a given height, conjugated by a radius, and perforated bases symmetrically extending from them in opposite directions, characterized in that the perforated bases are arched in shape and have rows of expanded metal cells in the form of a parallelogram located at an angle to longitudinal axis towards each other. 2. A method of manufacturing a beacon mesh profile from a sheet blank, comprising making grooves in the blank, excluding solid metal sections at the edges, forming a profile in the stands of the roll forming mill and its segment, characterized in that the grooves are made over the entire width of the blank in the form of a given number of rows of groups corresponding to the number of beacon profiles simultaneously made from one billet, excluding solid metal sections between rows and groups of notches, in each row of the notch group they are equal in length, parallel to each other and located at an angle to the longitudinal axis towards each other, when forming the profile in the first stand of the roll forming mill, longitudinal gutters are formed in the form of a triangle between the rows of each group of cuts and in the form of a lock at the edges, which serve to fix the workpiece in rolls of the roll-forming mill during the drawing process, and in the following stands of the roll-forming mill, the grooves are drawn through the successive formation of two walls of the beacon profile, paired for mustache to a predetermined height, from sections of solid metal symmetrically to the longitudinal axis of each row of a group of notches, while the rows of groups of notches are converted into mesh sections with cells in the form of a parallelogram, and after receiving walls of profiles of a given height, paired with a radius, and flat bases with cells in the form the parallelogram is rolled gutters to horizontal alignment, then the longitudinal cutting of the workpiece is carried out to divide the workpiece into rows of beacon profiles, the flat base of which has perforations with cells in the form of a parallelogram, then a flat base profiles impart an arcuate shape given radius of roll forming mill rollers, whereupon the segment profiles required length.

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