SU100539A1 - A device for making rebar used in the production of string concrete - Google Patents

Description

Devices for the manufacture of reinforcing rods used in the production of string concrete, made in the form of an extended chain machine, pull wire under adjustable tension and equipped with head-and-pin presses for rods are known.

The disadvantage of such devices is their relatively low performance. The described device is free of this disadvantage; It is possible to simultaneously pull a bundle of wires from several bays.

The essence of the invention is that shafts are mounted on a chain chain mill, the number of which is equal to the number of wires to be simultaneously stretched. Through a peephole, wire from one coil is passed through, and with these heats, the wires are alternately fed to the heading and bran press to form a reinforcing bar.

FIG. 1 shows schematically a device in two projections; in fig. 2 - installation of shafts (on an enlarged scale).

The table 1 of the long chain mill is formed by two longitudinal planks, between which is located the knuckle chain 2 with the leads 3. The latter are elongated links, between the cheeks of which there is a sector clip for the wire. T nuncha chain 2 runs around two sprockets 4. Conical drums 5 are installed for bays with wire 6. Between the last and m chains there are brakes 7 through which the wires from the bays are passed. Each brake provides coiling of the wire from the coil with a strictly fixed and subdayup, it is controlled by the tension value. Behind the brake, in the immediate vicinity of the exhausting chain, are located the direction for the wires of the bushings (not shown in the drawing).

At the ends of the table of the rolling mill, two upset-tube presses 8 and 9 are installed, each of which is equipped with punches and a matrix for half-waves and a lever lever for cutting off the end of the wire. Before the first one in the direction of movement of the wire by the press, the shims 10 are located,

the purpose of which is to protect against errors while simultaneously stretching the wire from several coils. The need for simultaneous unwinding of several types of wire arises in the case of a large table length, when the time of the wire attached to the wire is too long and when unwinding several coils of the wire simultaneously reduces the cycle time for producing one rod 3-5 times.

Remizki are the levers 11 and 12, swinging around the axes, reinforced by racks 13, mounted on the table of an extension mill. In the bent part of these levers there is a hole (peephole) through which wire is passed. Each lever, independently of the others, can be lifted several centimeters upwards with the help of a pedal-operated 14-tee or a driving device. Thus, the tube of the bundle wires can be lifted and inserted into the jaw of the seed-and-bran press.

The stump is driven by an electric motor through an appropriate gearbox at a speed of 1-1.5 m per second.

The gear motor is powered by a magnetic nuscate. .

To raise the leads with fixed wires, the right part of the press serves at the elevated part of the guide bus, which is crossed by cross-pox. After the lead with the wire passes the right press.

The drive of the shafts, as well as of the balers, can be made both with the help of hand levers, and with the help of electric or mechanical devices) 5.

Subject invention

Claims (2)

1. A device for the manufacture of armature rods for string concrete, made in the form of an extension chain machine equipped with head-boring presses, which are designed so that, with the aim of alternately supplying head-and-tube presses with only one wire from the beam simultaneously drawn, on a machine tool, mounted in an amount equal to the number of nolovok in the beam, lifting shafts, in whose eyes one is passed through one wire from the beam. 2. In the device according to claim 1, use a brake that ensures the winding of the wire from the coils with a strictly fixed and controllable tension value. L2