SU468665A1 - Device for straightening metal rods - Google Patents

Description

The invention is intended for straightening wire, reinforcing steel and steel of round, hexagonal and square sections.

A device for straightening metal rods is known, which comprises fixed, fixed sections and correct sections, which make circular oscillations from the drive, installed on the bed frame.

From the pellied filling of rods and dissipating the technological possibilities in the proposed section device, performing Hu-ie circular oscillations, are equipped with 1 for their installation with integral supports in a number of at least two in each of the three coordinate planes built through mutually perpendicular axes passing through the center the severity of the section, as well as unbalanced inoculants.

Vibration exciter balances are shifted one relative to the other but to the phase and installed with the possibility of synchronous wiring, 1.

Each onor is equipped with at least m with uniform bonds of equal rigidity evenly spaced around its center.

FIG. Figure 1 shows the structural scheme of the device with two sliding and three moving sections, each of which is equipped with two vibration exciters, which act synchronously in one phase, during operation; in fig. 2 is a structural diagram of a vibrosection with one pressure element, two vibration exciters and two elastic onors in the plane of oscillation of the section; in fig. 3 is a schematic diagram of the vibrosection for simultaneous straightening of the longitudinal rods, for example, in the reinforcement mesh welding line; in Fig. 4, the principle scheme of a regular device with an iodomotion section, equipped with two pressure elements and one vibration exciter, in the process of operation; in fig. 5 is a diagram of a basement section with one vibration exciter.

The fixed regular sections 2 are fixedly mounted on the bed I. The movable sections 3 are equipped with vibration exciters 4 operating from the driver 5, and are connected to the bed by means of supports 6 resilient in the plane of oscillation of the sections. The movable and non-stemmed sections are provided with support elements 7, for example, roller self-centering devices. If there are two or more vibration exciters in one section, there is a synchronizer 8 in order to ensure their synchronous operation in one phase. If the transmission of the zerp, as shown in the diagrams, tensioning device 9 is necessary, and for a drive with cardan shafts, a movable spline joint to compensate for the movements of movable sections in the process of oscillation. In the adjacent mobile sections, the unbalances of exciters are shifted by 180 °.

FIG. 1 and 4, rod 10 is shown conventionally bent in regular sections in the manner that occurs during the dressing process. In the static position, the centers of the pressure elements are on the same straight line, which simplifies refueling.

The device works as follows.

The end of the rod 10, wound in a coil, is passed between the diluted rollers of the pushing members 7 of the movable 3 and the stationary 2 sections of the correct device to the pulling device (not shown). After refilling the rod, the device turns on the drive. At the same time, the moving device starts to move and the moving sections oscillate in a circular path, and the neighboring sections oscillate in opposite phases, as the unbalances are shifted by 180 °, which causes the rod to bend in opposite directions on each section. Bending occurs in the same plane, which rotates with a rotational speed equal to the frequency of oscillation of sections, causing bulk plastic deformation of the rod.

After the end of pulling and straightening the rod from one skein, the device is refilled, and all processes are repeated. Silent docking by contact welding of the ends of the rods in the coils, which leads to a decrease in the number of refills to one for a given batch of rods.

With a change in the diameter of the rod being machined, the amplitude of vibrosection fluctuates. With an increase in diameter, the amplitude decreases, and with a decrease, it increases, while the amplitudes do not get close to the required ones, but it is structurally difficult to get the automatically exactly required amplitude, whereas it is easy to automatically change the amplitude to close to the desired value. Therefore, to obtain an accurate amplitude, it is necessary to change the unbalance of the vibration exciter by a previously calculated amount, which is easy to perform in any known manner.

The use of vibration exciters with free oscillations excludes the possibility of device breakage in the event of accidental seizure of correct sections with a rod or for other reasons.

Subject invention

Claims (2)

1. A device for straightening metal rods, which have non-stemmed regular sections and regular sections mounted on a frame that perform circular oscillations from the drive, characterized in that, in order to control the core trimming and expand technological capabilities, the sections that perform circular oscillations are equipped with their installation with elastic supports in the amount of not less than two in each of the three coordinate planes drawn through mutually perpendicular axes passing through the center of gravity of the section, as well as debalansnymn vibroexciters mi. 2. The device according to claim 1, characterized in that the unbalances of the vibration exciters are displaced with respect to each other in phase and installed with the possibility of synchronous rotation. 3- Device according to n. 1, characterized in that the onor is provided with at least three elastic connections of equal rigidity uniformly spaced around its center. Phie 2 Fig ji .. 4tfc 4g, .. M. | f: ief- |: i / - :: MJ Vi i n 1 I-M - five . --- Chug lhchu i -;, - vl ..4 / V viHr 7 V .p r; - l h t-r Ouch Ix