KR20020032644A - Apparatus for manufacturing cable which has spiral projection - Google Patents

Abstract

PURPOSE: A manufacturing apparatus of a wire having spiral protrusions is provided to avoid wire short due to weight of winter snow and accurately print between the protrusions with a rotating embossing printer. CONSTITUTION: A manufacturing apparatus of a wire having spiral protrusions comprises a bobbin(30), a motor(31), an extrusion unit(35), a cross head(36), an embossing printer(37), an air blaster(38), a cooling water bath(39), an outer circumference measuring unit(40) and a winding unit(41). The bobbin(30) supplies conductive material to be covered with the spiral protrusions. The motor(31) supplies a spinning force to the cross head(36). The extrusion unit(35) extrudes insulating material to cover the conductive material. The cross head(36) covers the conductive material with the insulating material to form a wire having spiral protrusions. The embossing printer(37) prints information on the wire while rotating around the wire to shun the protrusions.

Description

Apparatus for manufacturing cable which has spiral projection

The present invention relates to an electric wire manufacturing apparatus, and in particular, the wire having a spiral protrusion for preventing a short circuit accident due to snow load accumulated on the electric wire in winter by extruding the shape of the spiral protrusion on the insulator by rotating the cross head when covering the conductor. It relates to a manufacturing apparatus.

In general, the wires in the wet area in winter freezes the snow accumulated on the wires, and the load of the frozen snow causes a short circuit of the wires. It is manufactured in the shape of a spiral protrusion to prevent accumulation on top or to use magnetic wires. Therefore, the cost and management costs are high, especially since the weight of the wire is added, there is a difficulty in functioning.

Conventionally, it was not possible to make a product with a rotating protrusion to make a wire having a parallel protrusion to install a twisted wire to install a slight spiral shape. However, this method could not function as a product having a projection because the rotational pitch of the projection was not large.

In addition, conventionally, in order to manufacture a wire having a spiral protrusion, one of the devices for releasing or winding the conductor is fixed and the other part is rotated so that the conductor is twisted so that the parallel protrusion is helically changed during extrusion.

Therefore, it is possible to manufacture by rotating or winding the device for supplying the conductor, and this method is the rotational speed and supply speed of the conductor in the manufacture of products that require accurate shape or projections of the correct pitch There is a difficult problem that must be correctly adjusted.

In addition, the auxiliary device must also rotate, and in particular, there is a problem in that the printing also rotates to avoid the projection of the extruded product.

The present invention has been made in order to solve the problems described above, it is possible to make a wire having a spiral-shaped projection in a structure that the cross head is rotated to prevent the disconnection of the wire due to the load of snow in winter. In addition, the embossing printing machine is also configured to print while rotating the purpose is to be accurately printed between the projection and the projection.

1 is an outline view of an electric wire having a spiral projection;

2 is a cross-sectional view of an electric wire having a spiral projection;

Figure 3 is a schematic diagram of a manufacturing apparatus of a wire having a spiral projection according to the present invention.

4 is an enlarged view of FIG. 3;

5 shows the shape of a die;

6 is a front view of a manufacturing apparatus of an electric wire having a spiral projection;

Description of the main parts of the drawing

11: projection 12: insulator

13 conductor 30 bobbin

31: Motor 35: Extruder

36: cross head 37: embossing printing press

38: air sprayer 39: cooling water tank

40: outer diameter measuring instrument 41: winding device

A feature of the present invention for achieving the object as described above, has a spiral protrusion consisting of an extruder for extruding the melt, a cross head connected to the extruder, an embossing printer for printing embossed, and an air sprayer for cooling the printing roll In the apparatus for manufacturing the electric wire, the cross head is composed of a rotating body and a non-rotating body to rotate, the rotating body has a die and a carrier, the embossing printing machine is connected to the rotating body, the air injector is installed outside the embossing printing machine It includes.

In addition, another feature of the present invention is that the rotating body of the cross head rotates in combination with the die, the embossing printing machine is coupled to the rotating body to rotate in synchronization with the embossing printing machine when the rotating body rotates, the air injector is installed outside the embossing printing machine Injecting air to the printing roll to cool the printing roll, and includes installing a bearing between the rotating body and the non-rotating body so that the cross head can rotate.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the external appearance of an electric wire and shows an insulator 12 and a protrusion 11, and product marking information is embossed between the protrusion 11 and the protrusion 11. FIG.

2 is a cross-sectional view of an electric wire having a spiral protrusion 11, and the structure of the electric wire is composed of an insulator 12 and a conductor 13, and the insulator 12 has a spiral protrusion 11 formed thereon.

The projections 11 are used two to three a lot and are twisted, and the pitch is 0.3m-6m, and the size of the projections 11 is spirally formed in a square shape of 1mm in height and 1.5mm in width. On the surface of (12), the printer, the product name, the date of manufacture, and the like were connected so as to emboss the printing so as to be parallel to the spiral projection 11.

Conductor 13 is a twisted pair consisting of a single wire or twisted several (twisted pair) is used, the material is mainly used to reduce the weight of the wire.

3 is a schematic diagram of an apparatus for manufacturing a wire having a spiral protrusion according to the present invention.

The configuration is the bobbin 30, the motor 31, the extruder 35, the cross head 36, the embossing printing machine 37, the air injector 38, the cooling water tank 39, the outer diameter measuring device 40 in which the conductor is wound. ) And the winding device 41 is sequentially installed.

The sequential operation of making spiral projections is as follows.

The bobbin 30 is wound like a thread to supply the material for the covering with the spiral projection, the motor 31 supplies the rotational force to the cross head 36 to create the spiral projection wire, and the extruder 35 The material that makes the insulator is melted to a high temperature, and the material which is coated on the conductor is extruded.

When the cross head 36 rotates to cover the conductor to form a wire having a spiral protrusion, the embossing printer 37 embosses the date of manufacture, the manufacturing company, and the like between the protrusion and the protrusion of the wire extruded in a spiral shape. And the air injector 38 sprays cooling air to prevent the hot extruded wire from sticking to the embossing printer 37.

On the other hand, the cooling water tank 39 cools the wire having a hot extruded spiral protrusion using water, the outer diameter measuring device 40 measures the outer diameter of the wire to check whether it is normal, the winding device 41 Is wound in the spiral wound wire coming out of the outer diameter measuring instrument 40 operates in the order of winding and storing.

4 is an enlarged view of FIG. 3 as follows.

When the motor 60 is driven, the cross head except for the non-rotating body 70 connected to the extruder 80 and the printing roll 84 rotate, and the cross head is connected to the non-rotating body 70 and the rotating body connected to the extruder 80. It consists of (71), the device for rotating the crosshead is composed of a chain (63) connected to the motor 60 and the pulley (61), the pulley (62) is provided on the rotating body (71) The rotational force of 60 is transmitted to the rotor 71.

The rotor nut 73 is a nut for fixing the rotor 71 to the non-rotator 70, and the bearing 76 is seated on the rotor nut 73 so that the rotor 71 is the non-rotator 70. When fixed to one side of the bearing 76 is in contact with the non-rotating body 70 so that the rotation is smooth. The carrier 72 serves to form a small hole in the center to guide the conductor as it passes and to be supplied to the center of the die 74.

The die nut 75 is a nut that fixes the die 74 to the rotating body 71, and the embossing printing machine prints the bracket 77, shaft 87, printing roll 84 and printing connected to the rotating nut 73. It consists of a spring 88 that tensions the roll 84.

A bracket 77 is connected to the rotor nut 73, the bracket 77 is connected to the shaft 87, and a printing roll 84 is installed on the shaft 87, and a bearing is installed on the printing roll 84. Smooth rotation with the shaft 87, and the spring 88 is connected to the shaft 87 and the bracket 77 as a device for applying a constant load to the insulator to apply a constant load even during rotation.

Embossing printing machine is a device that embosses and prints continuously on the insulator by applying the pressure to the insulator while the insulator is not hardened during extrusion by embossing the manufacturing year, type of wire, and structure of the product to be printed on the printing roll 84 It is rotated in order to avoid printing of an insulator.

Since the extruded electric wire is in a high temperature state and continuously works, the printing roll 84 is heated to cause an insulator to stick to the printing roll 84. Therefore, an air sprayer is installed to prevent this phenomenon. The air injector continuously ejects cooling air to cool the temperature of the printing roll 84 to prevent the insulator from sticking to the printing roll 84.

The air injector is composed of a fitting tube (83) receiving compressed air, a ring shaped reservoir (86) and an air nozzle (85), and the melt body (81) is a non-rotating body (70) in the cross head from the extruder (80). And it passes through the rotor 71 and is extruded through the carrier 72 and the die 74 to cover the conductor.

The fitting tube 83 is connected to the cooling air tank and supplied to the reservoir 86 and sprayed cooling air to the printing roll 84 by the air nozzle 85.

FIG. 5 is an enlarged view of the die 74. A spiral slot 78 is formed in the hole of the die 74, and the shape of the protrusion is extruded in the shape of the slot 78. FIG. .

Figure 6 is a front view of the embossing printing machine of Figure 4 is a projection and a projection to accurately print between the projection and the projection, such as manufacturing company, date of manufacture Position at right angles.

As described above, first, when the conductor enters the bobbin, the motor transmits the rotational force to the crosshead, the extruder melts the material of the insulator to cover the conductor and transfers it to the die, and the die rotates to cover the conductor spirally, and the printing roll In addition, while rotating, it embossed the information of the manufacturer, the date of manufacture, etc. in the spiral-shaped coated conductor, and the air sprayer is cooled with air to prevent the coated wire from sticking to the printing roll, and the cooling water tank is extruded at a high temperature. Cool the wire again with water, measure the outer diameter and check the normality, then operate the winding wire in the winding device.

The present invention has a structure in which the cross head rotates, so that the pitch of the protrusions having an accurate spiral shape can be made, and the embossing printing machine is connected together, so that the printing can be performed accurately between the protrusions and the protrusions without a separate driving device.

In addition, embodiments according to the present invention is not limited to the above, and those skilled in the art will be able to carry out various modifications and changes to the present invention within the obvious scope, such modifications, And changes are intended to fall within the technical scope of the present invention.

As described above, the present invention can manufacture a wire having a spiral-shaped projection by rotating the cross head, so that no additional installation is required to prevent the wire disconnection accident due to the snow load in winter, Many cost savings can be achieved. In addition, the embossing printing device is also configured to print while rotating, there is an effect that can be accurately printed between the projection and the projection.

Claims (6)

In the apparatus for producing an electric wire consisting of an extruder for extruding the melt, a cross head connected to the extruder, a printer for printing embossed, an air sprayer for cooling the printing roll, an outer diameter measuring device, The cross head is made of a rotating body and a non-rotating body so as to rotate, the rotating body has a die and a carrier, a printing press is connected to the rotating body, an air injector is installed on the outside of the printing machine spiral projection Device for manufacturing wires with The method of claim 1, The rotating body of the cross head is a device for producing a wire having a spiral projection, characterized in that coupled to rotate with the die. The method of claim 1, The printer is coupled to the rotating body, the apparatus for producing a wire having a spiral projection, characterized in that the rotating rotating in synchronization with the printing machine when the rotating body rotates. The method of claim 1, The air injector is installed on the outside of the printing machine for producing a wire having a spiral projection, characterized in that for cooling the printing roll by injecting air to the printing roll. The method of claim 1, Apparatus for producing a wire having a spiral protrusion, characterized in that the bearing is provided between the rotating body and the non-rotating body so that the cross head can rotate. The method of claim 1, The outer diameter measuring device is a device for manufacturing a wire having a spiral projection, characterized in that for determining the normality of the wire by measuring the outer diameter of the wire having a spiral projection produced.