SU1803238A1 - Installation for manufacturing metal screen - Google Patents

Description

The invention relates to the field of manufacturing metal wire meshes and can be used in the manufacture of reinforcement for reinforced concrete structures. CYY, .

< The purpose of the invention is to expand the technological capabilities of the installation due to the possibility of obtaining a grid with a large pitch between the wires and improving the quality of the finished product due to the ^additional connection of the edges of the grid.

< The goal is achieved by the fact that the installation has a longitudinal squeezing device.

The wires are made in the form of two parallel beams with paws, reciprocating along an arc close to 180°, and welding devices are located at the edges of the installation for connecting only the outermost longitudinal wires with the transverse wires of the grid.

In FIG. 1 shows a general view of the installation: Fig. 2 - node of the device for compression of longitudinal wires.

On the frame 1 of the installation, a device for feeding longitudinal wires 2 is mounted, consisting of tubular guides 3, a drive roll 4 and pressure rollers 5.

To press the longitudinal wires 2 in different directions, a device (Fig. 2) is provided, consisting of two parallel beams - the upper 6 and the lower 7, manufactured with the ability to make; reciprocating movements. This is ensured by the hinged fastening of the ends of beams 6 and 7 to two threshold disks.

1803238 A1

8, performing synchronous rotational oscillations at an angle close to 180°. The legs attached to the lower beam 7 act directly on the wires 2 - to push the wires 2 up.

The installation is completed with a pair of welding tongs 10, permanently fixed on the frame 1, for resistance spot welding of the extreme intersections of the longitudinal and transverse wires along the long sides of the grid. Pincers 10 are located between the device 11 for finished meshes. To feed the transverse wire 12 between the pressed longitudinal wires 2, a straightening-cutting machine 13, equipped with a coil holder 14, is located on the side of the installation.

The installation works as follows.

Before starting the production of meshes, the required number (set) of pre-straightened measuring wires 2 is loaded into the device for feeding longitudinal wires. At the same time, pressure rollers 5 are lowered. When the rollers 5 are lifted up by a special wire (not specified), the wires 2 are pressed one step to the device for squeezing these wires. At the moment of moving the wires of the disk 8, on which the beams 6 and 7 are fixed, turning, the disk is in the middle position, i.e. wringing legs 9 moved apart (figa). The disks 8, continuing to turn to one of their extreme positions, bring together the beams 6 and 7 and the legs 9 press one longitudinal wire (through one) up and the other down (Fig. 26).

After the wires 2 are pressed in different directions, the disks 8 stop in the extreme position and the transverse wire 12 is fed from the straightening-cutting machine 13. The wire 12 passes between the longitudinal wires 2 pressed in different directions and, having passed the entire width of the manufactured mesh, is cut off.

After cutting the transverse wire 12, the discs turn in the opposite direction (Fig. 2, c) and the fabricated mesh moves one step with the help of rollers 4, kinematically connected with the cutting mechanism of the straightening-cutting machine 13.

When disks 8 are rotated to the opposite extreme position, they change to the position of longitudinal wires 2: those longitudinal wires that were pressed up at the previous stage are pressed down, and vice versa (Fig. 2d).

After each movement of the grid by one step, simultaneously weaving the next transverse wire, welding of the transverse wire 12 woven at the previous stage to the two extreme longitudinal wires of the grid takes place. Welding is carried out with the help of two welding tongs 10. The braided welding mesh produced in this way enters the receiving device 11, where a mesh package is formed.

The proposed installation is structurally simple and allows you to get reinforcing mesh without significant power consumption.

Claims (1)

Claim Installation for the manufacture of metal meshes, mainly reinforcing meshes, containing a measuring longitudinal wire feeding mechanism installed on the frame, a transverse wire feeding mechanism with straightening and cutting means, a mechanism for interlacing transverse and longitudinal wires and a receiving device for meshes, characterized in that, for the purpose expanding technological capabilities by ensuring the production of a mesh with a large pitch between the wires and improving the quality of the finished product due to the additional connection of the edges of the mesh, it is equipped with a mechanism located between the mechanism for interweaving the transverse and longitudinal wires and the receiving device for meshes for welding the extreme longitudinal wires with transverse, moreover, the mechanism for interlacing the transverse and longitudinal wires is made in the form of disks symmetrically located relative to the axis of supply of the longitudinal wire and fixed on the latter by means of hinges parallel to each other beams with tabs for pressing the longitudinal wire in opposite sides with respect to the axis of supply, installed with the possibility of counter-directed reciprocating movement and with the possibility of angular rotation from left to right and from right to left along an arc equal to 180°C. ^d ) fig. 2