阅读说明：本技术 一种交联聚乙烯绝缘低烟无卤阻燃控制电缆 (Cross-linked polyethylene insulation low-smoke halogen-free flame-retardant control cable ) 是由 余学东 叶成文 王红 田东升 刘忠发 刘欢欢 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种交联聚乙烯绝缘低烟无卤阻燃控制电缆,本发明涉及控制电缆技术领域,包括多根导体,所述导体的外表面包覆有一圈绝缘层,多根所述导体的外侧设置有包带层,所述包带层的外侧设置有内护层,所述内护层的外侧挤包有铠装层,所述铠装层的外侧设置有护套层。该一种控制电缆由护套层、铠装层、内护层以及包带层共同包覆多个导体,增加了控制电缆本体的阻燃绝缘性能,耐受能力佳,抗腐蚀能力强,使用寿命更长,控制电缆本体与冷却室中的冷却水充分接触,快速冷却,位于出线口内侧的控制电缆本体在重力作用下滴落到冷却室内,外侧由上清洁布和下清洁布对控制电缆本体的表面清洁,沥干控制电缆本体表面附着的水渍。(The invention discloses a crosslinked polyethylene insulated low-smoke halogen-free flame-retardant control cable, which relates to the technical field of control cables and comprises a plurality of conductors, wherein the outer surfaces of the conductors are coated with a circle of insulating layer, the outer sides of the conductors are provided with belting layers, the outer sides of the belting layers are provided with inner protective layers, the outer sides of the inner protective layers are extruded with armor layers, and the outer sides of the armor layers are provided with sheath layers. This control cable is by the restrictive coating, the armor, a plurality of conductors of interior sheath and the common cladding of band layer, the fire-retardant insulating properties of control cable body has been increased, the endurance is good, corrosion resistance is strong, life is longer, the control cable body fully contacts with the cooling water in the cooling chamber, quick cooling, the control cable body that is located the outlet inboard drips under the action of gravity in the cooling chamber, the outside is by last cleaning cloth and lower cleaning cloth to the surface cleaning of control cable body, driping control cable body surface adnexed water stain.)

1. The utility model provides a fire-retardant control cable of cross-linked polyethylene insulation low smoke and zero halogen which characterized in that: including many conductors (15), the surface cladding of conductor (15) has round insulating layer (16), many the outside of conductor (15) is provided with belting layer (14), the outside of belting layer (14) is provided with interior sheath (13), the crowded armor (12) that has wrapped in the outside of interior sheath (13), the outside of armor (12) is provided with restrictive coating (11), restrictive coating (11) adopt low smoke and zero halogen fire-retardant polyolefin sheath material to make, insulating layer (16) adopt the crosslinked polyethylene material to make.

2. The cross-linked polyethylene insulated low-smoke zero-halogen flame-retardant control cable according to claim 1, characterized in that the number of the conductors (15) is seven, six conductors (15) are arranged around the central conductor (15) in an annular ring array, and the conductors (15) are made of tinned copper wires.

3. The cross-linked polyethylene insulated low-smoke halogen-free flame-retardant control cable according to claim 1, wherein the wrapping layer (14) is made by winding and wrapping non-woven fabrics, and the wrapping manner of the wrapping layer (14) adopts multi-layer overlapping wrapping.

4. The cross-linked polyethylene insulated low-smoke zero-halogen flame-retardant control cable according to claim 1, wherein the inner sheath (13) is made of polyvinyl chloride tape.

5. The cross-linked polyethylene insulated low-smoke zero-halogen flame-retardant control cable according to claim 1, wherein the armor layer (12) is made of galvanized steel strip.

6. The cross-linked polyethylene insulated low-smoke halogen-free flame-retardant control cable according to claim 1, wherein the processing method of the control cable comprises the following steps:

s1: the control cable body (1) enters from the wire inlet (21), is sequentially wound and connected with the wire inlet pair roller (23), one short roller (25), the long roller (26), the other short roller (25) and the wire outlet pair roller (24), fully contacts with cooling water in the cooling chamber (2), and is pulled out from the wire outlet (22);

s2: when the cable is pulled out, the bottom surface of the control cable body (1) is in contact with the lower cleaning cloth (422), the electric push rod (33) controls the pressing plate (34) to move downwards, the top surface of the control cable body (1) is clamped into the upper cleaning cloth (342), the sleeve plate (42) is extruded downwards, the sleeve plate (42) and the fixing plate (41) movably drive the control cable body (1) to move, and the surface of the control cable body (1) is cleaned and drained after water absorption;

s3: and after the cleaning work of the control cable body (1) is finished, the next procedure is carried out.

7. The cross-linked polyethylene insulated low-smoke halogen-free flame-retardant control cable according to claim 6, characterized in that the lower cleaning cloth (422) and the upper cleaning cloth (342) adopt a semicircular structure, and the lower cleaning cloth (422) and the upper cleaning cloth (342) are attached to the surface of the control cable body (1).

8. The cross-linked polyethylene insulated low smoke zero halogen flame retardant control cable according to claim 6, wherein the outlet (22) and the inlet (21) are horizontally arranged in line.

Technical Field

The invention relates to the technical field of control cables, in particular to a crosslinked polyethylene insulated low-smoke halogen-free flame-retardant control cable.

Background

The cable is generally a cable similar to a rope and formed by twisting a plurality of or a plurality of groups of leads (at least two leads in each group), each group of leads are mutually insulated and are usually twisted around a center, a highly-insulated covering layer is wrapped outside the whole cable, the cable has the characteristics of internal electrification and external insulation, and along with the increasing improvement of the awareness of safety and environmental protection of people, the halogen-free low-smoke flame-retardant cable is more and more widely used, and the use requirement of the cable is higher and higher.

Through retrieval, the Chinese patent discloses a multilayer protection low-smoke halogen-free flame-retardant fire-resistant control cable and a manufacturing method thereof, wherein the publication number CN103123818A adopts a mode of aluminum strip embossing and double-layer co-extrusion, so that the working efficiency is improved, and the quality of longitudinally wrapped aluminum strips and extruded nylon is improved; the radiation cross-linked polyethylene insulation at 105 ℃ is adopted, so that the temperature resistance level of the cable is improved, the mechanical property is good, the dielectric constant and the dielectric loss angle tangent value are small, the insulation electrical property is excellent, the corrugated longitudinal aluminum-clad belt can effectively prevent water or moisture from entering the cable, the shielding effect is good, the bending property of the cable is ensured, and the cable is convenient to install and use.

The traditional cable has the tolerance test, and in some hard environments, the cable is poor in corrosion resistance and poor in insulation effect, cracks appear on the surface of the cable, signal transmission is affected, and even potential safety hazards may appear.

Disclosure of Invention

The technical problem solved by the scheme is as follows:

(1) the traditional cable has poor corrosion resistance and insulation effect, and is easy to cause cracks on the surface of the cable and even potential safety hazards;

(2) in the manufacturing process of the cable, the surface is not thoroughly cooled and cleaned, and the wire can even carry a part of water stain when being pulled out.

The purpose of the invention can be realized by the following technical scheme: the utility model provides an insulating low smoke and zero halogen flame retardant control cable of crosslinked polyethylene, includes many conductors, the surface cladding of conductor has the round insulating layer, many the outside of conductor is provided with the band layer, the outside of band layer is provided with interior sheath, the crowded package in the outside of interior sheath has the armor, the outside of armor is provided with the restrictive coating, the restrictive coating adopts low smoke and zero halogen flame retardant polyolefin sheath material to make, the insulating layer adopts the crosslinked polyethylene material to make, the inside of cooling chamber is passed to the one end of control cable body.

The invention has further technical improvements that: the number of the conductors is seven, the six conductors are arranged around the middle conductor in an annular ring, and the conductors are made of tinned copper wires.

The invention has further technical improvements that: the band layer is made by winding and wrapping non-woven fabrics, and the band layer is wrapped in a multi-layer overlapping manner.

The invention has further technical improvements that: the inner protective layer is made of polyvinyl chloride tapes.

The invention has further technical improvements that: the armor layer is made of galvanized steel strips.

The invention has further technical improvements that: the processing method of the control cable comprises the following steps:

s1: the control cable body enters from the wire inlet, is sequentially in wire-wound connection with the wire inlet pair roller, the short roller, the long roller, the other short roller and the wire outlet pair roller, is fully contacted with cooling water in the cooling chamber, and is pulled out from the wire outlet;

s2: when the cable is pulled out, the bottom surface of the control cable body is contacted with the lower cleaning cloth, the electric push rod controls the pressing plate to move downwards, the top surface of the control cable body is clamped into the upper cleaning cloth, the sleeve plate is extruded downwards, the sleeve plate and the fixing plate movably drive the control cable body to move, and the upper cleaning cloth and the lower cleaning cloth clean the surface of the control cable body and absorb water and drain;

s3: and after the cleaning work of the control cable body is finished, the next procedure is carried out.

The invention has further technical improvements that: the lower cleaning cloth and the upper cleaning cloth are of semicircular structures, and the lower cleaning cloth and the upper cleaning cloth are attached to the surface of the control cable body.

The invention has further technical improvements that: the outlet and the inlet are horizontally arranged in a collinear way.

Compared with the prior art, the invention has the beneficial effects that:

1. the control cable body is by a plurality of conductors of restrictive coating, armor, interior sheath and band layer cladding jointly, has increased the fire-retardant insulating properties of control cable body, and the endurance is good, and corrosion resistance is strong, can adapt to the harder environment of condition, and life is longer.

2. The control cable body is fully contacted with cooling water in the cooling chamber, the control cable body after hot melting forming can be rapidly cooled and cleaned, the surface of the control cable body is cleaned by the upper cleaning cloth and the lower cleaning cloth, and water stains attached to the surface of the control cable body are drained.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a control cable according to the present invention;

FIG. 2 is a schematic view of a control cable body in a cooling chamber according to the present invention;

FIG. 3 is a schematic view of the cleaning mechanism of the present invention;

fig. 4 is a perspective view of the long roller structure of the present invention.

In the figure: 1. a control cable body; 11. a sheath layer; 12. an armor layer; 13. an inner protective layer; 14. a belting layer; 15. a conductor; 16. an insulating layer; 2. a cooling chamber; 21. a wire inlet; 22. an outlet; 23. an incoming line pair roller; 24. the outgoing line is paired with a roller; 25. a short roll; 26. a long roll; 27. a water outlet; 271. a valve; 3. a cleaning mechanism; 31. a support plate; 32. a reinforcing frame; 33. an electric push rod; 34. pressing a plate; 341. pressing the groove upwards; 342. cleaning cloth is arranged; 4. fixing a bracket; 41. a fixing plate; 42. sheathing; 421. pressing the groove downwards; 422. and (5) putting a cleaning cloth.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an insulating low smoke and zero halogen flame retardant control cable of crosslinked polyethylene, including many conductors 15, the surface cladding of conductor 15 has round insulating layer 16, the outside of many conductors 15 is provided with belting layer 14, the outside of belting layer 14 is provided with interior sheath 13, the crowded package in the outside of interior sheath 13 has armor 12, the outside of armor 12 is provided with restrictive coating 11, restrictive coating 11 adopts low smoke and zero halogen flame retardant polyolefin sheath material to make, insulating layer 16 adopts crosslinked polyethylene material to make, the inside of cooling chamber 2 is passed to the one end of control cable body 1.

Referring to fig. 1, seven conductors 15 are arranged, six conductors 15 are arranged around the middle conductor 15 in an annular ring array, the conductors 15 are made of tinned copper wires, the tape layer 14 is made of non-woven fabric winding and wrapping, the tape layer 14 is wrapped in a multi-layer overlapping manner, the inner protective layer 13 is made of a polyvinyl chloride tape, and the armor layer 12 is made of a galvanized steel tape.

Examples

Referring to fig. 2 and 4, a wire inlet 21 is formed in a surface of one side of the top of the cooling chamber 2, a wire outlet 22 is formed in a surface of the other side of the top of the cooling chamber 2, a wire inlet pair roller 23 and a wire outlet pair roller 24 are respectively installed on two sides of the wire inlet 21 and the wire outlet 22, a long roller 26 is installed at the bottom end of an inner cavity of the cooling chamber 2, a water outlet 27 is formed in a surface of the bottom end of the cooling chamber 2, a valve 271 is embedded in the water outlet 27, short rollers 25 are installed on two sides of the long roller 26, and one end of the control cable body 1 is attached to the wire inlet pair roller 23, the two short rollers 25, the long roller 26 and the wire outlet pair roller 24.

Referring to fig. 2-3, a cleaning mechanism 3 is installed on one side of the top end of the cooling chamber 2, the cleaning mechanism 3 includes a reinforcing frame 32 installed on the top end of the control cable body 1, a supporting plate 31 is fixedly connected to the top end of the reinforcing frame 32, an electric push rod 33 is installed on the surface of the bottom end of the supporting plate 31, a pressing plate 34 is fixedly connected to the telescopic end of the electric push rod 33, two upper pressing grooves 341 are formed in the bottom of the pressing plate 34, and an upper cleaning cloth 342 is installed inside the upper pressing grooves 341 in a matching manner.

Referring to fig. 2-3, a fixing bracket 4 is disposed below the opposite side surface of the cooling chamber 2 close to the pair of line outgoing rollers 24, a fixing plate 41 is fixedly mounted at the top end of the fixing bracket 4, a sleeve plate 42 vertically collinear with the pressing plate 34 is movably connected to the top end of the fixing plate 41, two lower pressing grooves 421 are disposed on the top end surface of the sleeve plate 42, lower cleaning cloths 422 are mounted inside the lower pressing grooves 421, and the lower cleaning cloths 422 and the upper cleaning cloths 342 are both in a semicircular structure.

The processing method of the control cable comprises the following steps:

s1: the control cable body 1 enters from the wire inlet 21, is sequentially in wire-wound connection with the wire inlet pair roller 23, one short roller 25, the long roller 26, the other short roller 25 and the wire outlet pair roller 24, is fully contacted with the cooling water in the cooling chamber 2, and is pulled out from the wire outlet 22;

s2: when the cable is pulled out, the bottom surface of the control cable body 1 is contacted with the lower cleaning cloth 422, the electric push rod 33 controls the pressing plate 34 to move downwards, the top surface of the control cable body 1 is clamped in the upper cleaning cloth 342, the sleeve plate 42 is extruded downwards, the sleeve plate 42 and the fixing plate 41 movably drive the control cable body 1 to move, and the upper cleaning cloth 342 and the lower cleaning cloth 422 clean the surface of the control cable body 1 and absorb water and drain;

s3: and after the cleaning work of the control cable body 1 is finished, the next procedure is carried out.

The working principle is as follows:

the control cable body 1 is coated with a plurality of conductors 15 by a sheath layer 11, an armor layer 12, an inner protection layer 13 and a wrapping layer 14, the flame retardant insulating property of the control cable body 1 is improved, the control cable body 1 is good in tolerance, strong in corrosion resistance, capable of adapting to a more severe environment and long in service life, the control cable body 1 enters from a wire inlet 21, is sequentially connected with a wire inlet double roller 23, a short roller 25, a long roller 26, another short roller 25 and a wire outlet double roller 24 in a winding manner and is fully contacted with cooling water in a cooling chamber 2, the control cable body 1 after hot melting molding can be rapidly cooled and is pulled out from a wire outlet 22, when the control cable body 1 is pulled out, the control cable body 1 positioned on the inner side of the wire outlet 22 drops into the cooling chamber 2 under the action of gravity, the bottom surface of the control cable body 1 positioned on the outer side of the wire outlet 22 is contacted with a lower cleaning cloth 422, and an electric push rod 33 controls a pressing plate 34 to face downwards, the top surface of the control cable body 1 is clamped in the upper cleaning cloth 342 and extrudes the sleeve plate 42 downwards, the sleeve plate 42 and the fixing plate 41 movably drive the control cable body 1 to move downwards, the upper cleaning cloth 342 and the lower cleaning cloth 422 clean the surface of the control cable body 1 and absorb water, and water stains attached to the surface of the control cable body 1 are drained.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "a plurality" means two or more, and it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be broadly construed, for example, as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.