Control cable and manufacturing process thereof

Abstract

The invention discloses a control cable and a manufacturing process thereof, and relates to the technical field of control cables.The control cable comprises a wire core body, the wire core body is composed of multiple strands of conductive metal wires, the wire core body is wrapped by a core body protection outer skin, and the core body protection outer skin is wrapped by a metal shielding sleeve; the metal shielding sleeve is fixedly sleeved with a reinforcing ring block, and the side, away from the metal shielding layer, of the reinforcing ring block is bonded with a cable sheath. According to the control cable, the bending resistance of the cable can be improved while certain flexibility of the cable is ensured, and meanwhile, the heat dissipation performance, the corrosion resistance and the twisting resistance of the cable in the using process are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of control cable, and particularly relates to a control cable and a manufacturing process thereof. BACKGROUND

[0002] Cables are indispensable basic elements for transmitting electric energy and information, and are basic products for electrification and informationization. Traditional cables are usually composed of an insulating layer and single or multiple conductive wires inside the insulating layer, and have weak compression resistance and tensile resistance, and are prone to breakage or even rupture, thereby causing problems such as electric leakage, short circuit or power failure of equipment, which not only brings safety hazards, but also requires frequent maintenance, thereby reducing work efficiency. In addition, the cable is often dragged and inevitably bent during use, which also requires the cable to be flexible. SUMMARY

[0003] The present application aims to provide a control cable which can improve the bending resistance of the cable while ensuring a certain flexibility of the cable, and improve the heat dissipation performance, corrosion resistance and anti-wrinkling performance of the cable during use.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme. A control cable comprises a wire core composed of multiple conductive metal wires, a core protection sheath covering the outside of the wire core, a metal shielding sleeve covering the outside of the core protection sheath, and a reinforcing ring block fixedly arranged outside the metal shielding sleeve, and a cable sheath is attached to the side of the reinforcing ring block away from the metal shielding layer.

[0005] As a preferred scheme of the present application, the reinforcing ring blocks are equidistantly arranged along the length direction of the wire core, grooves are arranged on both sides of the reinforcing ring blocks, and a hollow groove is arranged inside the reinforcing ring block.

[0006] As a preferred scheme of the present application, a stepped annular plate is fixedly arranged inside the groove, the stepped annular plate is integrally arranged with the reinforcing ring block, and a plurality of stepped annular plates are concentrically arranged.

[0007] As a preferred scheme of the present application, a sunken groove is arranged on the side of the core protection sheath, the sunken grooves are equidistantly arranged along the core protection sheath, and the depth of the sunken groove is 1 / 2 of the thickness of the core protection sheath.

[0008] As a preferred scheme of the present application, a through hole is arranged on the side of the reinforcing ring block, and a plurality of through holes are uniformly distributed on the side of the reinforcing ring block.

[0009] As a preferred scheme of the present application, the cable sheath side is provided with a spiral groove, and the depth of the spiral groove is 1 / 2 of the thickness of the cable sheath.

[0010] As a preferred scheme of the present application, a metal strip is embedded in the spiral groove, and the thickness of the metal strip is 1 / 3 of the depth of the spiral groove.

[0011] As a preferred scheme of the present application, the outer side of the metal strip is covered with a carbon fiber woven strip, the surface of the carbon fiber woven strip is flush with the surface of the cable sheath, and the carbon fiber woven strip is adhesively fixed to the cable sheath.

[0012] As a preferred scheme of the present application, the metal shielding sleeve side is provided with a through groove, and a plurality of through grooves are equidistantly arranged along the length direction of the metal shielding sleeve and equidistantly arranged along the circumferential direction of the metal shielding sleeve, and the through groove position corresponds to the sunken groove position.

[0013] The present application also provides a manufacturing process for controlling cable, based on the above-mentioned cable structure, comprising the following manufacturing steps: ①, preparing a wire core in the control cable commonly used, and externally sleeving a core protection sheath; ②, marking along the length direction of the core protection sheath, and setting a sunken groove by a scraper in a mechanical automatic driving mode, and the sunken groove interval is 10-15 cm; ③, laser engraving a through groove on the metal shielding sleeve, and engraving three or four through grooves along the circumferential direction of the metal shielding sleeve, and the through groove interval along the length direction of the metal shielding sleeve is 10-15 cm; ④, using polyester resin as an adhesive medium to adhesively fix the metal shielding sleeve outside the core protection sheath, and placing the through groove corresponding to the sunken groove position; ⑤, further filling polyester resin in the sunken groove and covering to the surface of the through groove, and installing a reinforcing ring block outside the metal shielding sleeve, and the reinforcing ring block middle part corresponds to the through groove middle line position; ⑥, preparing a cable sheath, and etching a spiral groove on the surface of the cable sheath by a chemical method, and pressing a metal strip with a width equal to the spiral groove to the bottom of the spiral groove after manufacturing; ⑦, coating polyester resin on both sides and the bottom of the carbon fiber woven strip, and pressing and pasting the carbon fiber woven strip on the surface of the metal strip; ⑧, pasting the prepared cable sheath outside the reinforcing ring block, and completing the cable manufacturing.

[0014] To sum up, the control cable can improve the bending resistance of the cable while ensuring that the cable has a certain flexibility, the metal strip is arranged on the outer sheath of the cable, which is conducive to heat conduction, the internal heat is conducted out by using the good heat conduction performance of the carbon fiber woven strip, and the heat dissipation performance of the cable during use is improved, the metal strip is covered by the carbon fiber woven strip, the metal strip is prevented from being exposed during use, the corrosion resistance of the outer sheath of the cable is improved, and the twisting resistance of the cable is improved due to the spiral arrangement of the metal strip and the carbon fiber woven strip. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, and are not intended to limit the application. In the drawings: Fig. 1 is a structural schematic diagram of a control cable according to an embodiment of the application; Fig. 2 is an exploded schematic diagram of a control cable according to an embodiment of the application; Fig. 3 is a sectional view of a control cable according to an embodiment of the application.

[0016] In the drawings: 1, wire core; 2, core protection sheath; 3, metal shielding sleeve; 4, reinforcing ring block; 5, groove; 6, hollow groove; 7, stepped annular plate; 8, sunken groove; 9, through hole; 10, spiral groove; 11, metal strip; 12, carbon fiber woven strip; 13, through groove; 14, cable outer sheath. DETAILED DESCRIPTION

[0017] The application will be further described in detail below with reference to the accompanying drawings.

[0018] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0019] Please refer to Figs. 1-3 The application provides a technical solution: a control cable, comprising a wire core 1, the wire core 1 is composed of a plurality of conductive metal wires, the wire core 1 is externally covered with a core protection sheath 2, the outer side of the core protection sheath 2 is covered with a metal shielding sleeve 3, the metal shielding sleeve 3 is externally fixed with a reinforcing ring block 4, and the reinforcing ring block 4 is externally bonded with a cable outer sheath 14.

[0020] The reinforcing ring block 4 is made of rubber and is integrally formed.

[0021] Specifically, the reinforcing ring blocks 4 are equidistantly arranged along the length direction of the wire core 1, the two sides of the reinforcing ring blocks 4 are provided with grooves 5, and the inside of the reinforcing ring blocks 4 is provided with hollow grooves 6.

[0022] The inside of the groove 5 is fixedly provided with a stepped annular plate 7, the stepped annular plate 7 is integrally arranged with the reinforcing ring block 4, and the stepped annular plate 7 is provided with a plurality of stepped annular plates 7 which are concentrically arranged.

[0023] The two reinforcing ring blocks 4 are equidistantly arranged, when the cable is bent, the two adjacent reinforcing ring blocks 4 abut against each other when the cable is bent to a certain arc, thereby avoiding excessive bending of the cable, while ensuring a certain flexibility of the cable, and the bending resistance of the cable can be improved.

[0024] The side of the core protection sheath 2 is provided with a sunken groove 8, the sunken groove 8 is equidistantly arranged along the core protection sheath 2, and the depth of the sunken groove 8 is 1 / 2 of the thickness of the core protection sheath 2.

[0025] The side of the reinforcing ring block 4 is provided with a through hole 9, the through hole 9 is provided with a plurality of through holes 9 which are uniformly distributed on the side of the reinforcing ring block 4, and the through hole 9 is beneficial to the overall heat dissipation performance of the cable.

[0026] Meanwhile, the side of the metal shielding sleeve 3 is provided with a through groove 13, the through groove 13 is equidistantly arranged along the length direction of the metal shielding sleeve 3, the through groove 13 is equidistantly arranged along the circumferential direction of the metal shielding sleeve 3, and the position of the through groove 13 corresponds to the position of the sunken groove 8.

[0027] The through groove 13 is correspondingly arranged with the sunken groove 8, and the through grooves 13 are not communicated with each other, which is easy for processing of the metal shielding sleeve 3, and the corresponding positions of the through groove 13 and the sunken groove 8 can thicken the thickness of the polyester resin, and improve the installation stability between the reinforcing ring block 4 and the core protection sheath 2 and the metal shielding sleeve 3.

[0028] Further, the side of the reinforcing ring block 4 is provided with a groove 5, and a plurality of stepped annular plates 7 are arranged in the groove 5, wherein the inside of the reinforcing ring block 4 is hollow, and after the cable is pressed from the outside, the cable sheath 14 can abut against the reinforcing ring block 4, thereby extruding the airflow in the reinforcing ring block 4 and releasing the airflow along the through hole 9, and the reinforcing ring block 4 can be compressed, and after compression, the plurality of stepped annular plates 7 abut against each other, which can further improve the compression resistance of the cable as a whole, and can effectively protect the wire core 1 inside.

[0029] The side of the cable sheath 14 is provided with a spiral groove 10, and the depth of the spiral groove 10 is 1 / 2 of the thickness of the cable sheath 14.

[0030] The inside of the spiral groove 10 is pressingly embedded with a metal strip 11, and the thickness of the metal strip 11 is 1 / 3 of the depth of the spiral groove 10.

[0031] The metal strip 11 is covered with a carbon fiber braid 12 on the outside, the surface of the carbon fiber braid 12 is flush with the surface of the cable sheath 14, and the carbon fiber braid 12 is adhesively fixed with the cable sheath 14. Since the outer side of the metal shielding sleeve 3 is a gap between the reinforcing ring blocks 4, the heat generated by the heat dissipation of the conductor core 1 during operation is conducted into the gap through the metal shielding sleeve 3, and further, the metal strip 11 is provided on the cable sheath 14, which can facilitate heat conduction, and the good heat conduction performance of the carbon fiber braid 12 can conduct the internal heat out, thereby improving the heat dissipation performance of the cable during use. Further, since the metal strip 11 and the carbon fiber braid 12 are spirally arranged, the torsional resistance of the cable can be improved.

[0032] Specifically, the following manufacturing steps are used to manufacture the cable: ①, prepare the conductor core 1 inside the conventional control cable, and set the core protection sheath 2 outside; ②, mark along the length direction of the core protection sheath 2, and set the sunken groove 8 by a mechanical automatic driving mode scraper, the sunken groove 8 is 10-15 cm apart; ③, laser engraving a through groove 13 on the metal shielding sleeve 3, the through groove 13 is engraved in three or four along the circumferential direction of the metal shielding sleeve 3, and the through groove 13 is 10-15 cm apart along the length direction of the metal shielding sleeve 3; ④, use polyester resin as an adhesive medium to adhesively connect the metal shielding sleeve 3 outside the core protection sheath 2, and place the through groove 13 corresponding to the sunken groove 8 position; ⑤, further fill the polyester resin inside the sunken groove 8, and cover the surface of the through groove 13, install the reinforcing ring block 4 outside the metal shielding sleeve 3, and the reinforcing ring block 4 is correspondingly positioned at the middle line position of the through groove 13; ⑥, prepare the cable sheath 14, etch the spiral groove 10 on the surface of the cable sheath 14 by a chemical method, and press the metal strip 11 with the same width as the spiral groove 10 to the bottom of the spiral groove 10 after manufacturing; ⑦, coat polyester resin on both sides and the bottom of the carbon fiber braid 12, and press and paste the carbon fiber braid 12 on the surface of the metal strip 11; ⑧, paste the prepared cable sheath 14 outside the reinforcing ring block 4 to complete the cable manufacturing.

[0033] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Finally, it should be noted that the above-mentioned only constitutes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications, equivalent replacements, improvements and the like of the technical solutions described in the foregoing embodiments can still be made. Any modifications, equivalent replacements, improvements and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control cable, characterized in that, The cable includes a conductor core (1), which is composed of multiple strands of conductive metal wires. The conductor core (1) is covered with a core protective sheath (2). The outer side of the core protective sheath (2) is covered with a metal shielding sleeve (3). A reinforcing ring (4) is fixedly fitted on the outside of the metal shielding sleeve (3). The cable sheath is bonded to the side of the reinforcing ring (4) away from the metal shielding layer.

2. The control cable according to claim 1, characterized in that, The reinforcing ring (4) is equidistantly arranged along the length direction of the conductor core (1), and the reinforcing ring (4) has grooves (5) on both sides and a hollow groove (6) inside.

3. The control cable according to claim 2, characterized in that, The groove (5) is fixed with a stepped annular plate (7). The stepped annular plate (7) is integrated with the reinforcing ring block (4). There are a plurality of stepped annular plates (7), and the plurality of stepped annular plates (7) are arranged concentrically.

4. The control cable according to claim 1, characterized in that, The core protective outer skin (2) has a sinking groove (8) on its side. The sinking groove (8) is set at equal intervals along the core protective outer skin (2). The depth of the sinking groove (8) is 1 / 2 of the thickness of the core protective outer skin (2).

5. The control cable according to claim 2, characterized in that, The reinforcing ring block (4) has through holes (9) on its side, and there are several through holes (9) evenly distributed on the side of the reinforcing ring block (4).

6. The control cable according to claim 1, characterized in that, The cable sheath has a spiral groove (10) on its side, and the depth of the spiral groove (10) is 1 / 2 of the cable sheath thickness.

7. The control cable according to claim 6, characterized in that, A metal strip (11) is pressed and embedded inside the spiral groove (10), and the thickness of the metal strip (11) is 1 / 3 of the depth of the spiral groove (10).

8. The control cable according to claim 7, characterized in that, The metal strip (11) is covered with a carbon fiber braided strip (12) on the outside. The surface of the carbon fiber braided strip (12) is flush with the surface of the cable sheath and is bonded and fixed to the cable sheath.

9. The control cable according to claim 4, characterized in that, The metal shielding sleeve (3) has a through groove (13) on its side. Several through grooves (13) are equidistantly arranged along the length of the metal shielding sleeve (3) and several through grooves (13) are equidistantly arranged along the circumference of the metal shielding sleeve (3). The position of the through groove (13) corresponds to the position of the sinking groove (8).

10. A manufacturing process for a control cable, based on the cable structure of claim 1, characterized in that, The production process includes the following steps: ① Prepare the conductor core (1) inside the control cable for regular use, and cover the core with a protective sheath (2); ② Mark along the length of the core protective outer skin (2), and set the sinking groove (8) by a scraper driven by mechanical automatic mode. The sinking groove (8) is spaced 10-15cm apart. ③ Laser engrave through grooves (13) on the metal shielding sleeve (3). Three or four through grooves (13) are engraved along the circumference of the metal shielding sleeve (3). The through grooves (13) are spaced 10-15cm apart along the length of the metal shielding sleeve (3). ④ Use polyester resin as an adhesive medium to bond a metal shielding sleeve (3) to the outside of the core protective outer skin (2), and place the through groove (13) and the sink groove (8) in corresponding positions; ⑤ Further fill the sinking tank (8) with polyester resin and cover the surface of the through groove (13). Install reinforcing ring (4) on the outside of the metal shielding sleeve (3). The middle part of the reinforcing ring (4) corresponds to the center line of the through groove (13). ⑥ Prepare the cable sheath. Use a chemical method to etch the spiral groove (10) on the surface of the cable sheath. After the sheath is made, press a metal strip (11) with the same width as the spiral groove (10) to the bottom of the spiral groove (10). ⑦ Coat the sides and bottom of the carbon fiber braided strip with polyester resin, and press and stick the carbon fiber braided strip onto the surface of the metal strip (11); ⑧. Attach the prepared cable sheath to the outside of the reinforcing ring (4) to complete the cable fabrication.

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