RU62846U1 - TECHNOLOGICAL COMPLEX FOR MANUFACTURE OF TWO-SIDED BEAMS WITH CROSS-CORONED WALLS - Google Patents

Abstract

Usage: the utility model relates to the production of piece or linear profile elements with an I-beam cross-sectional shape made of metal, and can be used for the production of beams, columns, frames, trusses. The essence of the utility model: a technological complex for the manufacture of I-beams with transversely corrugated walls, containing a roll unwinder installed in the technological sequence, the correct device, a roll forming unit, a transverse cutting device, an electric drive with a control panel and a receiving table, is equipped with a sequentially placed production area strips and a line for the manufacture of shelves, while in front of the bending unit there is a device for slitting strip, and along the supply of the profiled wall sequentially placed interconnected output table with cassette racks, storage shelves and section of the assembly and welding of beams. In addition, the strip production section includes a thermal cutting machine and a stripping section for strips. The line for the manufacture of shelves includes a machine for cutting edges, a welding station, a device for stripping strips, a band saw and a transport system. The device for transverse cutting is made in the form of a guillotine shears with a hydraulic drive, and the device for longitudinal cutting of a strip is made in the form of two pairs of shafts with circular knives. The technical result provided by the utility model is that due to the proposed mutual arrangement of the aggregates of the complex and their functionality, a high-quality profile of an I-beam from a strip blank is obtained. 4 s.p. f-ly, 4 ill.

Description

The utility model relates to the production of piece or linear profile elements with an I-beam cross-sectional shape made of metal, and can be used for the production of beams, columns, frames, trusses.

Known and widely used devices for the manufacture of welded structures with initial shaping - flexible parts, sets and subsequent welding, as a rule, in stands and beds with an appropriate curved surface. After the welding operation, such structures require the elimination of the obtained welding deformations by bending on presses or local heating (see Kuklin OS, Mikhailov BC, Shirshov IG Problems of improving the quality of manufacturing of hull structures. L., Shipbuilding, 1988) .

These traditional methods of manufacturing welded structures require a large amount of fitting work by hand with a high level of complexity.

There are also known lines and devices for them described in the following sources of information: “Production of bent profiles (equipment and technology) / edited by I.S. Trishevsky. M .: Metallurgy, 1982, p.249 "," Trishevsky I.S. and others. Equipment for the production of cold-formed sections of rolled metal abroad (CINTIAM). M.: Metallurgy, 1964. " Known lines are not intended for the manufacture of I-beam profiles used for the manufacture of beams and trusses.

A device is known "Automated line for the manufacture of thin-walled profiles", (USSR Author's Certificate 1796311, 21 D 5/06, publ. 23.02.1993). The known line contains a technological roll installed in the technological sequence in the form of a roll unwinder and a feeding device, a guide device, a roll forming unit, installation of profile sections, a measuring device, an electric drive with a control panel and a receiving table.

The closest in technical essence to the claimed utility model is “Automated line for the manufacture of thin-walled bent profiles, containing a roll unwinder, a feeding device, a guiding device, a roll forming unit, installation of profile sections, a control panel and a receiving table” (RF Patent No. 2184634, IPC B 21 D 5/06, publ. 10.07.2002).

Known lines are also unsuitable for the manufacture of I-beams, since they do not contain devices for assembling and welding the main elements of the beam: walls and shelves.

The utility model is based on the task of creating a technological complex for the manufacture of I-beams with a thin-walled profile element, which, due to the formation of transverse corrugations with specified parameters in relation to each other, with the height of the wall of the profile element and the strength characteristics of the material, will reduce the consumption of material while maintaining the required bearing ability. At the same time, the technological sequence in which the equipment of the complex is located is such that it makes it possible to automate the production of I-beams, while ensuring the possibility of readjusting individual units for the manufacture of beams of different lengths and heights.

The technical result provided by the proposed utility model is that due to the proposed mutual arrangement of the aggregates of the complex and their functionality described below, a high-quality profile of an I-beam from a strip blank is obtained.

The task is achieved in that the technological complex for the manufacture of I-beams with transversely corrugated walls, containing the roll unwinder installed in the technological sequence, the correct device, the roll forming unit, the device for transverse cutting, the control panel and the receiving table, is equipped with a sequentially placed section for the production of strips and a line for the manufacture of shelves, while in front of the roll forming unit there is a device for longitudinal cutting of the strip, and about the flow of the profiled wall sequentially placed interconnected output table with cassette racks, storage shelves and section of the assembly and welding of beams.

In addition, the strip production section includes a thermal cutting machine and a stripping section for strips.

In addition, the line for the manufacture of shelves includes interconnected machine for cutting edges, welding station, a device for stripping strips, band saw and transport system.

In addition, the device for transverse cutting is made in the form of guillotine shears with a hydraulic drive.

In addition, the device for longitudinal cutting of the strip is made in the form of two pairs of shafts with circular knives.

The flexible scheme of the technological complex allows to increase the density of use of the production area due to the compact placement of equipment.

The implementation of the device for longitudinal cutting in the form of two pairs of shafts with circular knives provides directional feed of the workpiece into the forming roller pairs.

The essence of the utility model is illustrated by drawings, which depict the technological complex for the production of I-beams with transversely corrugated walls.

Figure 1 shows a top view of the technological complex for the manufacture of I-beams with transverse corrugated walls, where:

1 - plot for the production of strips;

2 - line for the manufacture of shelves;

3 - production line for the manufacture of I-beams with transversely corrugated walls;

4 - thermal cutting machine;

5 - separation stripping blanks strips;

6 - a machine for cutting edges;

7 - welding post;

8 - device for stripping strips;

9 - band saw;

10 - cassette storage racks;

11 - live rolls;

12 - live rolls;

13 - hoist;

14 - unwinder rolls;

15 - the correct device;

16 - device for transverse cutting;

17 - a device for slitting;

18 - roll forming unit;

19 - control panel;

20 - reception table;

21 - site assembly and welding of beams;

22 - welding station;

23 - welding robot;

24 - roller conveyor longitudinal transmission;

25 - chain conveyor for the transverse transmission of finished beams;

26 - removal zone.

Figure 2 is a cross section of an I-beam, where:

27 - corrugated wall of the beam;

28 - beam shelf;

29 - butt welding seam.

Figure 3 is a section aa of figure 1, where:

15 - the correct device;

16 - device for transverse cutting strips;

17 - a device for slitting a strip;

18 - roll forming unit;

27 - wall of the beam;

30 - pulling roller;

31 - the correct roll;

32 - a hydraulic cylinder;

33 - a knife of guillotine shears;

34 - table;

35 - shaft of circular knives;

36 - shaft roll forming unit.

Figure 4 is a section bB in figure 3, where:

35 - shaft of circular knives;

37 - circular knife.

The technological complex for the manufacture of I-beams with transversely corrugated walls contains section 1 for production

strips, line 2 for the manufacture of shelves, production line 3 for the manufacture of I-beams with transversely corrugated walls.

Section 1 for the production of strips includes a thermal cutting machine 4 and a section 5 stripping blanks strips.

Line 2 for the manufacture of shelves includes interconnected machine 6 for cutting edges, welding station 7, device 8 for stripping strips, band saw 9, cassette storage racks 10 and a transport system containing roller tables 11 and 12 and a hoist 13.

The production line 3 for the manufacture of I-beams with transversely corrugated walls includes the roll unwinder 14 installed in the technological sequence, the correct device 15, the device 16 for transverse cutting, the device 17 for longitudinal cutting, the roll forming unit 18, the control panel 19. In the direction of supply of the profiled wall Behind the roll forming unit 18, a receiving table 20 is connected in series with each other with cassette storage racks 10 of shelves and a section 21 for assembling and welding beams containing two welding stations 22 with welding robots 23 and a longitudinal conveyor (not shown), a roller conveyor 24 for longitudinal transmission and a chain conveyor 25 for transverse transmission of finished beams.

The manufacture of a welded structure - an I-beam with transversely corrugated walls is carried out in three stages of production: preparation and accumulation of shelves, production of a corrugated wall, assembly and welding of an I-beam.

The process of preparation and accumulation of shelves begins with cutting on the machine 4 thermal cutting of the required number of strips of equal thickness and length from sheets of black metal. The chopped strips are cleaned in the stripping section 5 and stored in a strip container (not shown in the drawing). The filled container is moved to line 2 for the manufacture of shelves to its input roller table 11. Strips with a hoist 13 are moved to the input roller table 11. From the roller table 11, the strip, if it is the first of the batch, is sequentially moved through the edge cutting machine 6, welding station 7, a stripping device 8 and a band saw 9 so that the trailing edge of the strip is under the first burner of the edge cutting machine 6. All subsequent strips bring the leading edge under the second burner of the machine 6 for cutting edges. After the preparation operation

the edges of the strip are fed to the welding station 7 and weld the joint. Next, the strips are passed through a stripping device 8, where they are mechanically cleaned of slag, dirt, burrs and other contaminants. In this way, an “infinite” strip is built up, which, when the required length is reached, is cut off on the band saw 9. The cut-off strip is pushed from the rolling table 12 into the cassette storage racks 10 of the production line 3 for the manufacture of I-beams with transversely corrugated walls.

The technological sequence in which the elements of the production line 3 for the manufacture of I-beams with transversely corrugated walls are located, implements the following operations for the automatic manufacture of an I-beam with transverse corrugated walls.

After installing the strip roll in the unwinder 14 rolls to automatically turn on the front end of the strip manually tuck into the pulling rollers 30 of the correct device 15.

The production process of the corrugated wall consists in the fact that the roll stock after unwinding, straightening on the right rolls 31, cutting the front end enters the device 17 for longitudinal cutting, after which the workpiece is profiled on the roll forming unit 18 and cut off by the device 16 for transverse cutting. In this case, the formation of a corrugated wall, for example, a sinusoidal shape, is carried out by means of a sheet of two cross-type star-shaped tools located on top of each other, each of the “stars” is provided with seven rolls. The surface of the profiling rolls provides continuous cold bending of a sheet of a sinusoidal profile according to the technological scheme. When the corrugated wall 27 reaches the required length, a cross-cutting occurs with the transverse cutting device 16. After that, the transportation of the corrugated wall 27 continues with the shafts 36 of the roll forming unit 18 and chain conveyors for supplying shelves (not shown) of the receiving table 20. Part of the production line 3 before transverse cutting, namely, the correct device 15 and the unwinder of the rolls 14, are blocked until they pass completely a blank (corrugated wall 27), a roll forming unit 18, and the finished corrugated wall reaching its initial position for assembly and welding.

Cut the workpiece is moved to the receiving table 20.

The process of assembly and welding of an I-beam is as follows. Of the cassette storage racks 10 mounted parallel to the receiving table 20, the shelves 28 are pushed onto the chain conveyors for supplying the shelves (not shown in the drawing). Further, the wall 27 and the shelves 28 are simultaneously fed to the section 21 of the assembly and welding of beams. Welding stations 22 with the shelves clamped in them 28 compress the corrugated wall 27 so as to minimize the gap between the wall and the shelves. After reaching the necessary compression power, welding robots 23 placed on the linear rails of welding stations (not shown) with their front sides scan the surface of the corrugated wall 27 at the point of contact with the shelves. After that, the welding robots 23, independently of each other, are lowered onto the corrugated wall and carry out welding. After completion of the welding process, the welding robots 23 are automatically raised and transferred to their starting position at the beginning of the beam.

The finished beam is fed to the output conveyor 24, then the chain conveyor 25 is brought into the removal zone 26.

The claimed technological complex for the manufacture of I-beams with transversely corrugated walls without changing the operating mode and replacing mechanisms can be used to produce I-beams with profiled walls, mainly a sinusoidal shape. Changing the parameters of the corrugations of the profile sheet is carried out by replacing the tool setup.

A fully fabricated welded structure (Figure 2) consists of a corrugated wall 27 of the shelves 28, interconnected along the length of the butt welding seam 29.

The experimental testing of the technological complex was carried out on the existing production base using the Crystal 1.5 thermal cutting machine, a welding station in conjunction with a wire feed device and welding machines from ESAB (Sweden), a band saw from Bomar (Czech Republic) and aggregates ZIN-beam production line of Zeman Bauelemente (Austria).

The proposed utility model "Technological complex for the manufacture of I-beams with transversely corrugated walls" is of interest for construction in the manufacture of beams, columns, frames and trusses based on thin-walled profile elements with sinusoidal

cross-sectional shape, as it will allow to produce in the cold state bent profiles from a wide range of sheet materials, up to 12000 mm long, up to 1250 mm high, wall thickness 2.0 ÷ 3.0 mm with molding depth 40 ÷ 43 mm and shelf thickness 6 ÷ 30 mm in accordance with the technical specifications of TU 5261-001-43892121-2005. At the same time, I-beams made on a technological complex with transversely corrugated walls provide a positive effect in the form of a reduction in material consumption by 5-12% while maintaining such basic operational qualities as bearing capacity, stability.

Claims (5)

1. Technological complex for the manufacture of I-beams with transversely corrugated walls, comprising roll unwinders installed in the technological sequence, the correct device, roll forming unit, transverse cutting device, control panel and receiving table, characterized in that it is equipped with a sequentially arranged strip production section and a line for the manufacture of shelves, while in front of the roll forming unit there is a device for longitudinal cutting of the strip, and along the feed of the wall, sequentially placed interconnected output table with cassette racks, storage shelves and section of the assembly and welding of beams. 2. The complex according to claim 1, characterized in that the section for the production of strips includes a thermal cutting machine and a department for stripping blanks of strips. 3. The complex according to claim 1, characterized in that the line for the manufacture of shelves includes interconnected machine for cutting edges, a welding station, a device for stripping strips, a band saw and a transport system. 4. The complex according to claim 1, characterized in that the device for transverse cutting is made in the form of guillotine shears with a hydraulic drive. 5. The complex according to claim 1, characterized in that the device for the longitudinal cutting of the strip is made in the form of two pairs of shafts with circular knives.