CN111224305A - Joint method for teflon lapped insulating wire lapping tape - Google Patents

Abstract

A method for jointing a Teflon lapping insulated wire lapping tape comprises the steps of cutting a PTFE lapping tape according to a special pattern, jointing after cutting, and ensuring that the outer diameter of the joint is basically unchanged due to the fact that a small lapping part is arranged at the joint. Compared with the traditional joint mode of direct and complete overlapping coverage, the wire and cable provided by the invention has the advantages that the outer diameter is basically unchanged, the joint is stable and reliable, auxiliary materials such as glue, adhesive tape and the like are not needed, the joint method is simple and convenient to operate, and the effect is good.

Description

Joint method for teflon lapped insulating wire lapping tape

Technical Field

The invention belongs to the technical field of wires and cables, and particularly relates to a joint method of a teflon lapped insulating wire lapping tape.

Background

In recent years, with the continuous and rapid development of economy and the advance of urbanization in China, the wire and cable industry keeps a higher growth speed, and correspondingly, higher requirements on the performance of the wire and cable are also provided. Teflon has excellent mechanical and electrical properties, high and low temperature resistance and chemical corrosion resistance, and is a very good insulating material. At present, the wire and cable is used as a wrapping mode in many times, and the production mode of wrapping is adopted, so that the electrical performance and the mechanical performance of the wire and cable can be improved, and the flexibility and the wear resistance of the wire and cable can be improved.

When the insulation of the wire and the cable is produced in a wrapping mode, the wrapping tape needs to be connected when the wrapping tape is broken. The conventional common joint method is usually a method of bonding by using glue or adhesive tape, high-temperature compression joint or directly covering around a wrapping tape. When the glue joint is used, the position of the glue is hard, which affects the flexibility of the electric wire, and when the electric wire is bent, the joint is not firm, the glue is not high temperature resistant, the viscosity of the glue is poor at high temperature, the bonding part is easy to disperse, in addition, the glue can be oxidized and blackened at high temperature, which affects the color and luster of the electric wire, and the attractiveness is poor; when the adhesive tape is used, the outer diameter of the electric wire is larger, and the viscosity of the adhesive tape is reduced at high temperature; when using high temperature crimping to be together around the taping crimping, because the teflon is thermosetting and temperature resistant level is higher, can't melt during high temperature, consequently can't carry out high temperature crimping, in addition, the crimping also has more overlap for the external diameter is on the large side. And the mode of directly covering around the band, when not using auxiliary material, coverage area is great usually to can make the local super large of wire and cable external diameter, influence wire and cable's outward appearance, when the electric wire needs the poling to use, there is strict requirement to the external diameter of electric wire, and joint department can be because the external diameter super large and unable use, produces extravagantly.

Disclosure of Invention

The invention aims to overcome the technical defects existing in the production of the conventional Teflon lapped insulated wire in a lapping mode, and provides a method for jointing a PTFE lapped tape. Compared with the traditional joint mode of direct and complete overlapping coverage, the wire and cable provided by the invention has the advantages that the outer diameter is basically unchanged, the joint is stable and reliable, auxiliary materials such as glue, adhesive tape and the like are not needed, the joint method is simple and convenient to operate, and the effect is good.

Technical scheme

In order to achieve the purpose, the invention designs a joint method of a teflon lapped insulating wire lapping tape, which is characterized in that: it comprises the following steps:

(1) manually winding the disconnected Teflon lapping insulated wire lapping tape tightly, and clamping the upper part of the joint by using a clamp to prevent the joint from loosening during lapping;

(2) cutting the broken end of the wrapping tape and the joint end of the wrapping tape by using a blade or scissors, wherein the cut shapes correspond to each other;

(3) splicing the broken end of the wrapping tape and the joint end of the wrapping tape together, firstly, crimping the spliced part overlapping part, then tightly wrapping a plurality of turns on the wire core in a manual wrapping mode, and shrinking the wrapping tape along the wrapping direction after wrapping to enable the appearance of the wrapping joint to be flat;

(4) after wrapping, cutting the broken end of the wrapping tape along the splicing position, cutting off the redundant part on the broken end of the wrapping tape, and then manually and tightly wrapping for a plurality of circles;

(5) and then starting the machine, wherein a slower speed is adopted during starting, the joint is stable after the wrapping is carried out for several circles, and then the wrapping is carried out at a normal production speed.

Advantageous effects

According to the method for jointing the Teflon lapped insulating wire lapping tape, the PTFE lapping tape is cut according to a special pattern and jointed after being cut, a small lapping part is arranged at the joint, and the outer diameter of the joint can be basically unchanged. Compared with the traditional joint mode of direct and complete overlapping coverage, the wire and cable provided by the invention has the advantages that the outer diameter is basically unchanged, the joint is stable and reliable, auxiliary materials such as glue, adhesive tape and the like are not needed, the joint method is simple and convenient to operate, and the effect is good.

Drawings

FIG. 1 is a schematic view of the case where the shearing is performed in step (2) in the example of the present invention.

FIG. 2 is a schematic view showing the case of shearing in step (4) in the example of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples.

Examples

The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

A method for jointing a teflon lapped insulating wire lapping tape comprises the following steps:

firstly, manually winding a disconnected Teflon lapping insulated wire lapping tape tightly, and clamping the broken Teflon lapping insulated wire lapping tape above a joint by using a clamp to prevent the broken Teflon lapping insulated wire lapping tape from loosening during lapping the joint;

secondly, cutting the broken end 2 of the wrapping tape and the joint end 3 of the wrapping tape by using a blade or scissors, wherein the cutting shapes correspond to each other, and the specific cutting shape is shown in the attached drawing 1;

thirdly, splicing the broken end 2 of the wrapping tape and the joint end 3 of the wrapping tape together, firstly, crimping the spliced part overlapping part, then tightly wrapping the wire core 1 by a manual wrapping mode for a plurality of circles, and shrinking the wrapping tape along the wrapping direction after wrapping so as to enable the appearance of the wrapping joint to be flat;

fourthly, after wrapping, cutting the broken ends 2 of the wrapping tape along the splicing positions 4 shown in the attached drawing 2, cutting off the redundant parts on the broken ends 2 of the wrapping tape, and then manually and tightly wrapping for a plurality of circles;

and fifthly, starting the machine, wherein during starting, a slower speed is adopted, after several turns of wrapping, the joint is stable, and then the wrapping is carried out at a normal production speed.

According to the method for jointing the Teflon lapped insulating wire lapping tape, the PTFE lapping tape is cut according to a special pattern and jointed after being cut, a small lapping part is arranged at the joint, and the outer diameter of the joint can be basically unchanged. Compared with the traditional joint mode of direct and complete overlapping coverage, the wire and cable provided by the invention has the advantages that the outer diameter is basically unchanged, the joint is stable and reliable, auxiliary materials such as glue, adhesive tape and the like are not needed, the joint method is simple and convenient to operate, and the effect is good.

The embodiment of the method for jointing the insulating wire wrapping tape wrapped by the teflon has been described above. The specific features such as shape, size and position of the splicing method for a teflon-wrapped insulated wire wrapping tape according to the present invention can be specifically designed by the functions of the above-disclosed features, and the designs can be realized by those skilled in the art. Moreover, the technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention, so as to achieve the purpose of the invention.

Claims (1)

1. A joint method of a Teflon lapping insulating wire lapping tape is characterized in that: it comprises the following steps:

(1) manually winding the disconnected Teflon lapping insulated wire lapping tape tightly, and clamping the upper part of the joint by using a clamp to prevent the joint from loosening during lapping;

(2) cutting the broken end of the wrapping tape and the joint end of the wrapping tape by using a blade or scissors, wherein the cut shapes correspond to each other;

(3) splicing the broken end of the wrapping tape and the joint end of the wrapping tape together, firstly, crimping the spliced part overlapping part, then tightly wrapping a plurality of turns on the wire core in a manual wrapping mode, and shrinking the wrapping tape along the wrapping direction after wrapping to enable the appearance of the wrapping joint to be flat;

(4) after wrapping, cutting the broken end of the wrapping tape along the splicing position, cutting off the redundant part on the broken end of the wrapping tape, and then manually and tightly wrapping for a plurality of circles;

(5) and then starting the machine, wherein a slower speed is adopted during starting, the joint is stable after the wrapping is carried out for several circles, and then the wrapping is carried out at a normal production speed.

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