CN204803375U - Enameled wire annealing device - Google Patents

Abstract

The utility model discloses an enameled wire annealing device belongs to cable production facility field. Including a plurality of annealing pipes, insulation can, heat preservation, a plurality of annealing pipes pass the insulation can, fill thermal -insulation layer between annealing pipe and the insulation can, the annealing intraduct is equipped with the resistance wire of following its inner wall and encircleing. Through carrying out the annealing of direct rapid heating at annealing pipe internally mounted resistance wire to the copper line that passes the annealing pipe, the insulation can and the heat preservation of annealing outside of tubes portion reduce thermal giving off to improved greatly and added thermal annealing efficiency, and guaranteed that the copper line is heated evenly, laid a good foundation for carrying out of subsequent handling.

Description

Enameled wire annealing device

technical field

The utility model relates to an annealing device, specifically an enameled wire annealing device, which belongs to the field of cable production equipment.

Background technique

Annealing is a necessary process link in the production process of enameled wire. The purpose of annealing is to heat the copper wire hardened by the crystal lattice change during the die stretching process to a certain temperature, so that the molecular lattice rearranges and restores the process requirements. Softness, while removing the lubricant, oil, etc. remaining on the surface of the copper wire during the drawing process, making the copper wire easy to paint and ensuring the quality of the enameled wire. There are currently three commonly used annealing methods: coil annealing, continuous annealing on wire drawing machines and continuous annealing on enamelling machines. The first two methods cannot meet the requirements of the enameled wire process. Continuous annealing before painting on the enamelling machine can not only achieve the purpose of softening and degreasing, but also the annealed copper wire is very straight and can directly enter the painting device, which can be coated with a uniform paint film. The annealing tube in the existing enameled wire annealing device is usually heated externally, and a heat transfer medium is set between the annealing tube and the copper wire, which leads to low annealing efficiency and poor annealing effect, and affects the quality of the subsequent finished enameled wire.

Utility model content

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an enameled wire annealing device with high annealing efficiency and good effect.

In order to solve the above-mentioned technical problems, the enameled wire annealing device provided by the utility model includes several annealing tubes, an incubator, and a thermal insulation layer. The inside of the annealing tube is provided with a resistance wire surrounding its inner wall.

In the utility model, the upper end and the lower end of the annealing tube are connected with insulating and heat insulating rings.

In the utility model, the insulating and heat insulating ring is made of ceramics.

In the utility model, the heat insulating layer is asbestos.

The beneficial effects of the utility model are: (1), by installing a resistance wire inside the annealing tube, the copper wire passing through the annealing tube is directly and rapidly heated and annealed, and the heat preservation box and the heat preservation layer outside the annealing tube reduce the distribution of heat, thereby greatly Improve the efficiency of heating annealing, and ensure that the copper wire is heated evenly, laying the foundation for the development of subsequent processes; (2), the upper and lower ends of the annealing tube are connected with ceramic insulation rings, which can facilitate the installation of enameled wire annealing devices and reduce heat Distribute and ensure the safety of annealing to avoid electric shock; (3) Asbestos is used in the insulation layer, which has good heat insulation effect and superior electrical insulation performance.

Description of drawings

Fig. 1 is the structure schematic diagram of enameled wire annealing device of the present invention;

Fig. 2 is a sectional view of part A-A of Fig. 1 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 and 2, the enameled wire annealing device of the utility model includes an incubator 1, an annealing pipe 2, and an asbestos layer 3. There are four annealing tubes 2, and the four annealing tubes 2 run side by side through the interior of the incubator 1, and an asbestos layer 3 is filled between the annealing tubes 2 and the incubator 1 for thermal insulation and insulation.

The inside of the annealing tube 2 is surrounded by a resistance wire 3 along its inner wall, and the resistance wire 3 is connected to a power supply. The upper end and the lower end of the annealing tube 2 are connected with ceramic rings for insulation and heat insulation, so as to reduce heat dissipation and avoid electrification with other equipment on the production line, affecting safe production.

The utility model is vertically installed in the enamelling machine production line, and is connected and fixed with related equipment through ceramic rings. When in use, turn on the power supply to heat the annealing tube 2 through the resistance wire 3 to reach the annealing temperature, and the copper wire slowly passes through the annealing tube 2 for heating and annealing, and then cools and paints.

This embodiment example uses four annealing tubes to further describe the utility model in detail. Those skilled in the art should know that the number of annealing tubes can be increased or decreased according to actual production needs.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, some improvements can be made without departing from the principle of the utility model, and these improvements should also be regarded as Protection scope of the present utility model.

Claims (4)

1. An enameled wire annealing device, characterized in that: comprise some annealing tubes, an incubator, and an insulating layer, the plurality of annealing tubes pass through the incubating box, and the insulating layer is filled between the annealing tube and the incubating box, and the annealing tube The interior is provided with a resistance wire looped along its inner wall. 2. The enameled wire annealing device according to claim 1, characterized in that: the upper end and the lower end of the annealing tube are connected with insulating and heat-insulating rings. 3. The enameled wire annealing device according to claim 2, characterized in that: the insulating and heat insulating ring is made of ceramics. 4. The enameled wire annealing device according to any one of claims 1 to 3, characterized in that: the insulation layer is asbestos.