SU296445A1 - Multirun device for induction annealing of wire - Google Patents

Description

one .

This invention relates to the field of heat treatment of metals.

A known multi-path installation for induction annealing of a wire comprising a common magnetic core, guide and contact rollers, and a device closing and opening its turns of each code.

However, the known installation has several disadvantages. In particular, two high-current switching devices connected to the rollers by means of sliding brush contacts are used to close and open the turns of the wire for each turn. In this case, the brushes should fit snugly against the rollers, which increases the tension of the wire heated to a high temperature and leads to its stretching. In addition, in a known installation, it is impossible to achieve an optimal ratio between the dimensions of the annealing and subsequent drying and heating of the core for different wires and annealing modes, since it is determined by the distance between the upper and lower blocks of the contact rollers.

The proposed installation is characterized in that, in order to improve its performance and simplify the design, the device closing and opening the turns of each stroke is made in the form of conductor closing and insulation disconnecting double-grooved rollers with a drive and interlock located between the guide rollers. simultaneous supply of these rollers to the wire.

For the purpose of adjusting the bowl and heating the wire after annealing, the movement of double grooved rollers placed on the traverse along the wire is provided.

FIG. 1 shows the proposed installation, cross-section; Fig 2 - two installation moves in front conditionally; in fig. 3 - the device closing and disconnecting turns of the course. The installation comprises a common magnetic core 1, upper and lower guide rollers 2 and 3, insulated from each other and from common axes 4 and 5, on which they rotate freely, vapor protection tubes 6 with lower ends lowered into the water in the bath 7, and the number tubes corresponds to the number of moves. Between the guide rollers 2 and 3 there is a traverse 8 with devices closing and closing the turns moving along the vertical guides 9 along the wire to regulate the drying mode and heating. The number of devices corresponds to the number of moves.

a double-grooved roller 10 to an isolating double-grooved roller 11 mounted on a common lever 12, rotating around hinge 13 and having a locking device 14, preventing simultaneous supply of the closing and opening rollers to the wire or simultaneous removal of both rollers from the wire.

This device is shown in more detail in FIG. 3 two positions. The flat lines indicate the working position (with the loop closed), and with a dot-dash line, the idle position (with the loop open).

When turning the lever 12 around the joint

13end of lever 12 with locking device

14 extends from the socket 15 of a fixed working position, with the double-grooved closing roller 10 of conductive material moving away from the wire, opening the coil. When the drive end 16 of the lever 12 is lowered to the lowest position, the locking device 14 enters the seat of the fixed idle position.

In this case, a double-grooved insulating disconnecting roller 11 fixes the position of the wire relative to the contact roller, while maintaining the tension of the wire in the turn.

The wire is annealed from the giving device enters the lower guide roller 3, then to the closing roller 10 (from this moment the current passes through it), from there to the upper guide roller 2 and, bypassing it, enters the vapor protective tube 6 and passes the cooling bath 7 around the next lower guide roller, is fed again to the closing roller 10.

Heating up in this area, the wire dries and then goes through the next upper guide roller 2 to the receiver.

Claims (2)

1. Multi-path installation for induction annealing of wire, containing a common magnetic core, guide and contact rollers, devices for opening the turns of each wire stroke, characterized in that, in order to improve the performance of the installation and simplify the design, the device closing and disconnecting turns, made in the form of conductive closing and insulating disconnecting two-grooved rollers with drive and interlock located between the guide rollers; specified rollers to the wire. 2. Installation according to claim 1, characterized in that, in order to adjust the drying and heating of the wire after annealing, the two grooved rollers are placed on a traverse, which can be moved along guide wires along the wire. 9  Jvm m. eleven