CN211957148U - Waterproof core wire - Google Patents

Abstract

The utility model relates to an electric wire cable technical field indicates especially to provide a waterproof core line, it includes that the rubber coating cladding crosses the rubber stranded conductor, it includes the stranded conductor to cross the rubber stranded conductor, each conductor includes circular surface, circular surface covers has the glue solution, the glue solution forms the first cladding layer of cladding at circular surface through the solidification, first cladding layer forms coincidence portion and hollow face along with the mutual transposition of each conductor, the coincidence portion is in the mutual transposition of each conductor and the gap that forms, waterproof core line automation operation and integrated into one piece's technical problem has been solved by aforementioned structure, the effect of improving the productivity and promoting the product yield has been reached.

Description

Waterproof core wire

Technical Field

The utility model belongs to the technical field of the communication cable technique and specifically relates to indicate to provide a waterproof heart yearn.

Background

Communication cables include optical cables, electrical cables, etc., and are used for a wide variety of purposes (e.g., electrical connection between devices to achieve power and/or telecommunication signal transmission). However, when the electrical connection is under a special environment, such as: when outdoor equipment, underwater equipment, outdoor equipment and indoor equipment, or underwater equipment and surface equipment are connected by wire cables (hereinafter referred to as "cables"), gaps A, B (such as joints between stranded conductors 10) exist inside the cables which are originally in a sealed state, as shown in fig. 1 and 2. When the slit A, B exists in the cable, water vapor or rain water can permeate into the equipment connected to one end of the cable through the slit A, B and atomize the equipment, which affects the service effect and the service life of the equipment.

In order to solve the problem of the cable having the slit A, B, the present invention has adopted the technical process of blocking the water-proof for the cable, and the technical process includes the earlier disclosed CN203300302U, CN207458651U and CN207381153U patent technologies. While these patented techniques work well to address the technical difficulties of penetration of the slit A, B by water mist, these techniques are all based on "destructive" reprocessing of the finished cable.

"destructive" reprocessing: firstly, the strict technical requirements of damage and recovery exist, which is not beneficial to reducing the cost; secondly, the volume of a finished cable reworking position is increased, so that the finished cable reworking position is not attractive and occupies space; thirdly, the stress surface is easy to break off at the position close to the rework position, thereby not only affecting the use effect, but also reducing the service life.

Disclosure of Invention

In order to solve the technical problem, an object of the present invention is to provide a waterproof core wire.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a waterproof heart yearn, including outer cladding rubber strand wires, the rubber strand wires of crossing include stranded conductor, and each conductor includes circular surface, its characterized in that: the round outer surface is covered with glue solution, the glue solution is solidified to form a first coating layer coated on the round outer surface, the first coating layer forms a superposition part and a hollow surface along with mutual twisting of the conductors, and the superposition part is positioned in a gap formed by mutual twisting of the conductors.

In the present embodiment, it is preferable that: the glue-passing stranded wire comprises a second coating layer, the second coating layer covers the depression-shaped surface with glue solution, and the glue solution is cured to form a round peripheral surface, so that a gap formed between the outer coating layer and the depression-shaped surface when the outer coating layer covers the round peripheral surface is filled with the second coating layer.

In the present embodiment, it is preferable that: the multi-strand conductor includes at least three strands of wire.

In the present embodiment, it is preferable that: the conducting wire is a copper wire.

Compared with the prior art, the utility model, its profitable effect:

the method meets the requirement of automatic production, can improve the productivity and is beneficial to reducing the cost;

secondly, the uniformity of the product size according to the design requirement can be ensured, and a waterproof functional component is not required to be added in a destructive manner as in the prior art, so that the appearance of the product is ensured to be attractive, and the space is not occupied;

thirdly, because the product has the wholeness, not only can promote the product quality, also can increase the life of product.

Drawings

FIG. 1 is a cross-sectional view of a prior art core wire.

Fig. 2 is a perspective view of another prior art core wire.

Fig. 3 is a schematic diagram of the processing of the thick strand conductor and the required equipment in this embodiment.

Fig. 4 is a cross-sectional view of the present embodiment showing a thick strand conductor.

Fig. 5 is a perspective view showing a thick strand conductor in the present embodiment.

FIG. 6 is a schematic view of the apparatus for processing the waterproof core wire in this embodiment (FIG. 3).

Fig. 7 is a sectional view showing a waterproof cord in the present embodiment.

Detailed Description

While the present invention may be susceptible to embodiment in different forms, there is shown in the drawings and will herein be described in detail, specific embodiments thereof with the understanding that the present description is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to that as illustrated herein.

Thus, a feature indicated in this specification will serve to explain one of the features of an embodiment of the invention, and not to imply that every embodiment of the invention must have the described feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.

In the embodiments shown in the drawings, the directions (such as up, down, left, right, front, and rear) are used to explain the structure and movement of the various components of the present invention not absolutely, but relatively. These illustrations are appropriate when these components are in the positions shown in the figures. If the description of the positions of these components changes, the indication of these directions changes accordingly.

The preferred embodiments of the present invention will be further described in detail with reference to the accompanying drawings.

Referring to fig. 3, 4, 5, 6 and 7, a waterproof core wire and a process for manufacturing the same are provided, in which: in fig. 3, a single-pass stranded conductor 100 (fig. 4 and 5) is provided, which is formed by a plurality of conductors 10 passing through a glue 20. The forming process of the single-pass glue stranded wire 100 comprises the steps of sequentially adopting a pay-off rack 1-10, a glue passing mechanism 1-20 and a stranding machine (such as a copper stranding machine) 1-30, and rotating the stranded wire to a winding drum (not marked) for later use through a wire rotating machine (a power take-up/pay-off machine) 1-40. During manufacturing, a plurality of strands of conductors 10 arranged on pay-off racks 1-10 are firstly drawn to gluing mechanisms 1-20 through paying-off wheels (not marked) on the pay-off racks 1-10; then the multi-strand conductor 10 passes through the glue solution groove (not labeled) of the glue mechanism 1-20, when the multi-strand conductor 10 passes through the glue solution groove, the multi-strand conductor 10 will be respectively adhered with the glue solution 20, the multi-strand conductor 10 adhered with the glue solution 20 is twisted into a thick strand by the twisting machine 1-30, because the conductor 10 is a hard substance, when being twisted into a thick strand, a gap a will be generated between the conductor 10 and the conductor 10, at this time, the glue solution 20 adhered to the surface of the conductor 10 will fill the gap a when being twisted. In this example, after the glue 20 is cured, the glue 20 on the outer surface of each conductor 10 forms a first coating 21, and the first coating 21 is twisted with each conductor 10, so that the first coating 21 forms an overlapping portion 22 and a depressed surface 211, wherein: the overlapping portion 22 is located at a position where the conductors 10 are twisted to each other (e.g., to form the slit a), and the depressed surface 211 is formed on the periphery of the thick strand of the stranded wire 10. Because the glue solution 20 has the natural curing effect, the glue solution 20 covered on each conductor 10 is cured to condense all the stranded conductors 10 together, so that the overall effect of passing through the glue stranded wire 100 once is effectively improved. In this example, a single-pass glue strand 100 is transferred to a reel (ready for use) by a wire transfer machine 1-40. Of course, in this embodiment, the single-pass glue stranded wire 100 may be heated directly by the preheating machine 2-20 (as shown in fig. 6) without passing through the wire-turning machine 1-40, and processed by the extruder 2-40 (extruder head) to form the outer sheath 30, and the outer sheath 30 covers the waterproof core wire formed by the single-pass glue stranded wire 100. Since the pay-off rack 1-10, the wire twisting machine 1-30 and the wire transferring machine 1-40 all belong to the existing equipment and are not the design points of the present embodiment, detailed description thereof is omitted. However, the key point of the design in this example is that the glue passing mechanism 1-20, the glue passing mechanism 1-20 is provided with the auxiliary position wheels 1-21 and 1-22 for incoming and outgoing lines in the glue solution tank, the auxiliary position wheels 1-21 and 1-22 for incoming and outgoing lines are arranged in the glue solution notch (not marked) and respectively close to the front end wall and the rear end wall (not marked) of the glue solution tank; the lower parts of the wire inlet and outlet auxiliary position wheels 1-21 and 1-22 are respectively provided with a front wire pressing wheel 1-23 and a rear wire pressing wheel 1-24, the front wire pressing wheel 1-23 and the rear wire pressing wheel 1-24 are horizontally arranged near the bottom (not marked) of a glue solution groove, wherein: the front wire pressing wheels 1-23 are positioned below and behind the wire inlet auxiliary position wheels 1-21 in the glue solution groove, the rear wire pressing wheels 1-24 are positioned in front of and below the wire outlet auxiliary position wheels 1-22 in the glue solution groove, in the embodiment, the multi-strand conductor 10 passes through the paying-off wheel to the glue passing mechanism 1-20, and the path of the multi-strand conductor 10 in the glue passing mechanism 1-20 is as follows: the multi-strand conductor 10 transmitted by the pay-off wheel is sequentially overlapped into the auxiliary position wheels 1-21 in the clockwise direction; lapping the front creasing wheels 1-23 in a counterclockwise direction; the back creasing wheels are 1-24 in the anticlockwise rotation direction; the outgoing line auxiliary position wheels 1-22 are lapped in a clockwise direction and are transmitted out by the outgoing line auxiliary position wheels 1-22, and the outgoing multi-strand conductor 10 is fully adhered with glue solution 20 in a glue solution tank and enters the stranding machine 1-30. In this example, the glue passing mechanism 1-20 is provided with a heating device 1-25, the heating device 1-25 is arranged at the bottom (back) of the glue solution tank, the heating device 1-25 belongs to electric heating, and can be set to be a constant temperature at which the glue solution 20 is not naturally solidified.

With continuing reference to fig. 3, 6 and 7, fig. 6 also shows the transfer line machine 2-10 and the glue applicator mechanism 2-30 with respect to fig. 3, wherein: the line turner 2-10 of fig. 6 is arranged in the same way as the line turner 1-40 of fig. 3, with the following differences: when the wire rotating machine is used, the wire rotating directions of the wire rotating machine and the wire rotating machine are different, for example, in the figure 3, the wire rotating machine 1-40 is positioned at the last position to play a role in power wire take-up, and in the figure 6, the wire rotating machine 2-10 is positioned at the forefront position to play a role in power wire pay-off; the gluing mechanisms 2-30 in fig. 6 are the same as the gluing mechanisms 1-20 in fig. 3, except that the two gluing mechanisms are arranged at different positions in different systems, and of course, the gluing mechanisms 2-30 in fig. 5 perform secondary gluing on the basis of the single-pass glued stranded wire 100, so that the secondary gluing forms a secondary glued stranded wire 200 (as shown in fig. 6). The forming process of the secondary gluing stranded wire 200 comprises the steps of sequentially adopting a wire rotating machine 2-10, a preheating machine 2-20, a gluing mechanism 2-30 and an extruding machine 2-40, or sequentially adopting a wire rotating machine 2-10, a gluing mechanism 2-30, a preheating machine 2-20 and an extruding machine 2-40. In this embodiment, the secondary gluing of the stranded wire 200 is based on the single-pass gluing of the stranded wire 100, and the secondary gluing is implemented after the glue solution 20 in the single-pass gluing of the stranded wire 100 is cured, the secondary gluing aims to provide the second coating layer 23 for the single-pass gluing of the stranded wire 100, namely the second coating layer 23 is coated on the hollow surface 211 of the first coating layer 21, because there is a gap b between the hollow surface 211 and the outer coating 30, the second coating layer 23 formed by the secondary gluing fills the gap b, and the stranded wire 100 is coated once again, so that the double-layer coating can further improve the packaging effect.

In order to save ink and time for the reader, the process of forming the re-glued stranded wire 200 and the process of forming the waterproof core wire based on the re-glued stranded wire 200 (by the extruders 2 to 40) are not described in detail.

Claims (4)

1. The utility model provides a waterproof heart yearn, includes that the rubber strand wires are crossed in the cladding, crosses the rubber strand wires and includes stranded conductor, and each conductor includes circular surface, its characterized in that: the round outer surface is covered with glue solution, the glue solution is solidified to form a first coating layer coated on the round outer surface, the first coating layer forms a superposition part and a hollow surface along with mutual twisting of the conductors, and the superposition part is positioned in a gap formed by mutual twisting of the conductors.

2. The waterproof core wire of claim 1, wherein: the glue-passing stranded wire comprises a second coating layer, the second coating layer covers the depression-shaped surface with glue solution, and the glue solution is cured to form a round peripheral surface, so that a gap formed between the outer coating layer and the depression-shaped surface when the outer coating layer covers the round peripheral surface is filled with the second coating layer.

3. The waterproof core wire of claim 2, wherein: the multi-strand conductor includes at least three strands of wire.

4. The waterproof core wire of claim 3, wherein: the conducting wire is a copper wire.

Images