CN111627600A - Self-supporting flat sensing signal connection control combined cable for automatic hoisting equipment - Google Patents
Self-supporting flat sensing signal connection control combined cable for automatic hoisting equipment Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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- C08K2003/265—Calcium, strontium or barium carbonate
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- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention discloses a self-supporting flat sensing signal connection control combined cable for automatic hoisting equipment, which belongs to the technical field of combined cables and is characterized by comprising a flat outer sheath, wherein a plurality of core wire assemblies I and a plurality of core wire assemblies II which are linearly arranged are wrapped in the outer sheath, and the outer sheath is prepared from the following raw materials in parts by weight: polyvinyl chloride powder: 39-43 percent; plasticizer: 36 to 39 percent; a toughening agent: 1.0 to 1.5 percent; modifying agent: 13 to 16 percent; calcium zinc stabilizer: 2.5-2.7%; lubricant: 0.1 to 0.2 percent; flame retardant: 2.0-2.2%; calcium carbonate: 1.0 to 1.5 percent; wherein the modifier is antimony trioxide. The invention has the advantages of better bending resistance and longer service life.
Description
Technical Field
The invention relates to the technical field of combined cables, in particular to a self-supporting flat sensing signal connection control combined cable for automatic hoisting equipment.
Background
With the continuous development of science and technology, automatic hoisting equipment is becoming a common equipment for loading and unloading goods at wharfs at present. The cable is an indispensable important component of the automatic hoisting equipment and is used for transmitting electric signals and current. At present, hoisting equipment often uses multiple cables, and does not optimize the integration to the cable, leads to automatic hoisting equipment's cable to have a heavy and confusing, problem that occupation space is big.
To solve this problem, the chinese utility model with the authority bulletin No. CN209785587U discloses a flat flexible control combination cable for an automatic handling device, which integrates a power line assembly and a plurality of control line assemblies into a flat outer sheath, and fills a cable filler in the gap between the power line assembly, the control line assembly and the outer sheath, so that the power line assembly and the control line assembly can exist stably relative to the outer sheath.
This prior art can practice thrift the occupied space of cable after the outer sheath of platykurtic integrates power supply module and control line subassembly together. However, since the combined cable for the hoisting equipment needs to be wound and stretched repeatedly during the use process, the combined cable for the hoisting equipment has higher requirement on bending resistance than the conventional common cable, otherwise, the service life of the combined cable for the hoisting equipment is greatly reduced.
However, the bending times of the cables on the market at present can only reach 1000 ten thousand times, so it is necessary to provide a self-supporting flat sensing signal connection control combination cable for automatic hoisting equipment with better bending resistance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a self-supporting flat sensing signal connection control combined cable for automatic hoisting equipment, which has the advantages of better bending resistance and longer service life.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, includes the oversheath that is the platykurtic, the parcel has a plurality of core assembly one and a plurality of core assembly two that are linear arrangement in the oversheath, wherein, the oversheath is made by the raw materials that include following parts by weight:
polyvinyl chloride powder: 39-43 percent;
plasticizer: 36 to 39 percent;
a toughening agent: 1.0 to 1.5 percent
Modifying agent: 13 to 16 percent;
calcium zinc stabilizer: 2.5-2.7%;
lubricant: 0.1 to 0.2 percent;
flame retardant: 2.0-2.2%;
calcium carbonate: 1.0 to 1.5 percent;
wherein the modifier is antimony trioxide.
By adopting the technical scheme, the outer sheath is adopted to integrate the core wire assemblies I and the core wire assemblies II, so that the space occupied by the cable can be saved; the core wire assembly I or the core wire assembly II can be a control wire, a power wire, a signal wire and the like, and the number or the type of the core wire assemblies can be specifically arranged according to actual use requirements; the outer sheath is made of modified polyvinyl chloride elastomer materials, and the elasticity and flexibility of the polyvinyl chloride elastomer materials can be improved by adding a plasticizer, a flexibilizer, a modifier, a calcium-zinc stabilizer, a lubricant and the like into polyvinyl chloride powder, so that the bending resistance of the combined cable can be improved; in addition, the calcium-zinc stabilizer can improve the stability of the calcium-zinc polyvinyl chloride elastomer material; the lubricant can play a lubricating role and can promote the uniform mixing of all components; the flame retardant is used for improving the flame retardant performance of the modified polyvinyl chloride elastomer material, and the modified polyvinyl chloride elastomer with high flexibility is relatively easy to catch fire, so the flame retardant is required to be added for flame retardant treatment; calcium carbonate is used as a filler for filling cables.
Further: the core wire assembly I comprises a plurality of core wires I and a fixed layer coated on the peripheral sides of the core wires I, and the core wire assembly II comprises a plurality of core wires II and a fixed layer coated on the peripheral sides of the core wires II; the method comprises the following steps of firstly, pairwise twisting a plurality of core wires to form a plurality of paired twisted core wires according to a specified twisting pitch, then, compositely twisting the plurality of paired twisted core wires according to the specified twisting pitch to form a semi-finished cable, and then, winding and wrapping a fixing layer; and a plurality of second core wires are directly twisted repeatedly according to a specified twisting pitch to form a semi-finished cable, and then a fixed layer is wrapped.
By adopting the technical scheme, the first core wire assembly is generally used as a signal wire, wherein two first core wires in the first core wire assembly form a double-wire loop, and the two first core wires in the loop are twisted in pairs, so that crosstalk between each pair of first core wires can be reduced, and the signal transmission stability of the first core wire assembly can be improved; in addition, the core wire assembly II is generally used as a power line or a control line, so that excessive anti-interference treatment is not needed, and the production process of the combined cable is simplified.
Further: the first core wire and the second core wire respectively comprise a conductor and an insulating layer wrapped on the periphery of the conductor, and the conductor is finely twisted into a bundle by adopting a plurality of strands of high-flexibility oxygen-free copper filaments embedded into bulletproof filaments; the bulletproof wire is located in the center of the conductor, and a plurality of strands of high-flexibility oxygen-free copper filaments are stranded on the outer periphery of the bulletproof wire according to a specified lay length.
By adopting the technical scheme, the conductor consists of a plurality of strands of high-flexibility oxygen-free copper filaments and the bulletproof filaments, wherein the high-flexibility oxygen-free copper filaments have good flexibility, and the conductor cannot be easily broken when the cable is bent; in addition, the specific material of the bulletproof wire can be Kevlar, which is a high-strength fiber and has good anti-pulling performance, and the anti-pulling performance and the anti-bending performance of the core wire can be enhanced after the bulletproof wire is added into the conductor.
Further: the insulating layer adopts modified TPE elastomer material, modified TPE elastomer material is made by the raw materials including following parts by weight:
styrene-butadiene block copolymer hydride: 34 to 44 percent;
white mineral oil: 14 to 26 percent;
antioxidant: 0.1 to 0.2 percent;
polypropylene: 15 to 30 percent;
calcium carbonate: 5 to 20 percent.
By adopting the technical scheme, the insulating layer is made of the modified TPE material, and the modified TPE material is specifically a modified polyethylene material; the modified polyethylene material prepared by blending and modifying the styrene-butadiene block copolymer hydride, the white mineral oil and the polypropylene according to the proportion has good flexibility and anti-swing property, also has good electrical insulation property, and can improve the tensile property and the anti-bending property of the cable; wherein, a certain amount of antioxidant is added into the hydrogenated styrene-butadiene block copolymer, the white mineral oil and the polypropylene, so that the aging resistance of the modified polyethylene can be enhanced, and the service life of the combined cable is prolonged; in addition, a certain amount of calcium carbonate is added to the hydrogenated styrene-butadiene block copolymer, white mineral oil and polypropylene, and the calcium carbonate is used as a filler for filling cables.
Further: the outer peripheral side of the fixed layer of the first core wire assembly comprises a shielding layer, the shielding layer comprises an aluminum foil shielding layer and a copper wire mesh shielding layer, the aluminum foil shielding layer wraps the outer peripheral side of the fixed layer of the first core wire assembly, and the copper wire mesh shielding layer wraps the outer peripheral side of the aluminum foil shielding layer; the copper wire mesh shielding layer is wrapped in a weaving mode, and the weaving density of the copper wire mesh shielding layer is more than 90%.
Through adopting above-mentioned technical scheme, the shielding layer is established to the periphery side of the fixed layer of heart yearn subassembly one, and the shielding layer includes aluminium foil shielding layer and copper wire mesh shielding layer, under the double-deck shielding effect of aluminium foil shielding layer and copper wire mesh shielding layer, can the interference effect of external magnetic field of greatly reduced to heart yearn one for the signal transmission of heart yearn one is in comparatively stable state.
Further: the fixed layer is a polytetrafluoroethylene flexible fluorine film.
By adopting the technical scheme, the core wire I and the core wire II are wrapped and positioned by adopting the polytetrafluoroethylene flexible fluorine films respectively, so that the stability of the core wires in the core wire assembly I and the core wire assembly II is improved, and the stability of signal transmission is improved; in addition, the polytetrafluoroethylene flexible fluorine film has good flexibility, can resist larger deformation and cannot break, and can play a role in buffering the core wire I or the core wire II because the polytetrafluoroethylene flexible fluorine film is positioned between the outer sheath and the core wire I or the core wire II, so that the possibility of breaking the core wire I or the core wire II in the combined cable is favorably reduced, and the service life of the combined cable is further prolonged.
Further: the modifier is modified antimony trioxide, and the preparation method of the modified antimony trioxide comprises the following steps:
step (1), preparing a modified solution: adding sodium stearate, polyethylene glycol, sodium dodecyl benzene sulfonate, absolute ethyl alcohol and water into an ultrasonic machine, starting the ultrasonic machine to dissolve raw materials for preparing the modified liquid, and uniformly mixing to obtain the modified liquid;
step (2), modification treatment: pouring the modified liquid into an ultrasonic machine, immersing the antimony trioxide in the modified liquid,
then starting an ultrasonic machine to carry out ultrasonic vibration soaking modification on the antimony trioxide, and heating the modified liquid at a temperature of between 40 and 50 ℃;
and (3) drying treatment: and fishing out the modified antimony trioxide, and drying to obtain the modified antimony trioxide.
By adopting the technical scheme, the interface difference exists between the modifying agent antimony trioxide and the polyvinyl chloride and between the modifying agent antimony trioxide and the plasticizer, so that the compatibility of the modifying agent antimony trioxide and the polyvinyl chloride and the plasticizer is poor, namely the modifying agent antimony trioxide can not uniformly modify the polyvinyl chloride, and the modified polyvinyl chloride has the problem of local non-uniform modification; according to the invention, water and ethanol are used as solvents, sodium stearate, polyethylene glycol and sodium dodecyl benzene sulfonate are used for modifying the modifying agent antimony trioxide, so that the interface difference between the modifying agent antimony trioxide and polyvinyl chloride and a plasticizer is eliminated, the modifying agent antimony trioxide uniformly acts on the polyvinyl chloride and the plasticizer, the uniformly modified polyvinyl chloride material is favorably obtained, the good flexibility of each part of the outer sheath is ensured, and the bending resistance of the combined cable is favorably improved.
Further: the modified liquid comprises the following raw materials in parts by weight:
sodium stearate: 50-70 parts;
polyethylene glycol: 20-30 parts of a solvent;
sodium dodecylbenzenesulfonate: 40-50 parts;
anhydrous ethanol: 2000 parts;
water: 2000 parts.
By adopting the technical scheme, when the modifying agent antimony trioxide is dipped in the modifying liquid obtained by mixing the raw materials according to the proportion for modification, the obtained modified antimony trioxide has good compatibility with polyvinyl chloride and a plasticizer.
Further: the average grain diameter range of the antimony trioxide is 20-40 meshes.
By adopting the technical scheme, when the average grain diameter of the antimony trioxide is in the range of 20-40 meshes, the modification time of the antimony trioxide can be shortened, the loss of the antimony trioxide can be reduced, and the cost is saved.
Further: the polyethylene glycol is any one or a mixture of two of polyethylene glycol 200 and polyethylene glycol 400.
By adopting the technical scheme, the polyethylene glycol 200 and the polyethylene glycol 400 have good dispersibility, and can promote sodium stearate and sodium dodecyl benzene sulfonate to modify the modifying agent antimony trioxide.
In conclusion, the invention has the following beneficial effects:
firstly, the invention adopts the outer sheath to integrate the core wire components I and the core wire components II, thus saving the space occupied by the cable.
Secondly, the polyvinyl chloride material is modified by adopting the plasticizer, the modifier and the like to obtain the modified polyvinyl chloride elastomer material with good flexibility and anti-swing property, and when the material is used as a combined material of the outer sheath of the combined cable, the tensile property and the anti-bending property of the combined cable can be improved;
thirdly, the modified polyethylene prepared by uniformly mixing the styrene-butadiene block copolymer hydride, the white mineral oil, the antioxidant, the polypropylene and the calcium carbonate is used as the insulating layer material of the core wire, so that the core wire has good bending resistance, can play a good shielding role, and is beneficial to improving the stability of the core wire in the signal transmission process.
Drawings
Fig. 1 is a schematic structural diagram of a self-supporting flat sensing signal connection control combination cable for automatic hoisting equipment according to the present invention.
In the figure, 1, a core wire component I; 11. a conductor; 12. an insulating layer; 13. a fixed layer; 14. an aluminum foil shielding layer; 15. a copper wire mesh shielding layer; 2. a core wire assembly II; 3. an outer sheath.
Detailed Description
Source of raw materials
The sources of the raw materials used in this example are as follows in table 1:
TABLE 1 sources of raw materials
Examples
Example 1:
referring to fig. 1, the self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment provided by the embodiment includes an outer sheath 3, two core wire assemblies 1 and two core wire assemblies 2, wherein the two core wire assemblies 1 and the two core wire assemblies 2 are linearly arranged along the width direction of the outer sheath 3, and the outer sheath 3 is wrapped on the peripheral sides of the two core wire assemblies 1 and the two core wire assemblies 2. The core wire assembly I1 comprises a conductor 11, an insulating layer 12, a fixing layer 13, an aluminum foil shielding layer 14 and a copper wire mesh shielding layer 15 which are sequentially arranged from inside to outside; the second core wire assembly 2 comprises a conductor 11, an insulating layer 12 and a fixing layer 13 which are sequentially arranged from inside to outside.
The conductor 11 in this embodiment is formed by embedding multiple strands of high-flexibility oxygen-free copper filaments into the bulletproof filament, and twisting the bulletproof filament into a bundle, specifically, the bulletproof filament is located in the center of the conductor 11, and the multiple strands of high-flexibility oxygen-free copper filaments are twisted on the outer peripheral side of the bulletproof filament according to a specified twisting distance, which is beneficial to improving the tensile property of the composite cable.
The insulating layer 12 in this embodiment is a modified TPE elastomer material, and is prepared by mixing, melting, extruding, and cooling the following raw materials in percentage by weight:
styrene-butadiene block copolymer hydride: 34 percent;
white mineral oil: 26 percent;
octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate: 0.2 percent;
polypropylene: 30 percent;
calcium carbonate: 9.8 percent.
The fixed layer 13 in this embodiment adopts the flexible fluorine film of polytetrafluoroethylene, and the flexible fluorine film of polytetrafluoroethylene has good flexible performance, can further improve the anti buckling performance or the tensile strength ability of combination cable.
Two lateral walls that the oversheath 3 of this embodiment is relative are equipped with a plurality of caves symmetrically, and sunken being provided with does benefit to and reduces the frictional force between combination cable and the reel or combination cable and the combination cable, has the effect of being convenient for the combination cable to release from the reel. In order to improve the bending resistance, tensile resistance and wear resistance of the outer sheath 3, the outer sheath 3 in this embodiment is a modified polyvinyl chloride elastomer material, and is specifically prepared by mixing, melting, extruding and cooling the following raw materials in percentage by weight:
polyvinyl chloride powder: 40.65 percent;
trioctyl trimellitate: 37 percent;
a toughening agent: 1.5 percent
Modifying agent: 15 percent;
calcium zinc stabilizer: 2.6 percent;
polyethylene: 0.15 percent;
antimony trioxide: 2.1 percent;
calcium carbonate: 1 percent.
The toughening agent in this example is chlorinated polyethylene, and the modifier and the flame retardant are antimony trioxide purchased from Shandong Youguo chemical technology Co., Ltd.
A preparation process for a self-supporting flat sensing signal connection control combined cable of automatic hoisting equipment comprises the following steps:
s1 twisting of the conductor 11: multiple strands of high-flexibility oxygen-free copper filaments are embedded into the bulletproof filaments and are finely twisted into bundles;
s2, insulating extrusion: pressing and coating a layer of modified TPE elastomer material on the conductor 11 prepared in the step S1 through an extrusion molding production line to prepare a first core wire and a second core wire;
s3, twisting the core wires: pairwise twisting the groups of core wires I prepared in the step S2 according to a specified twisting pitch to prepare a plurality of pairs of twisted core wires; in the embodiment, the lay length of the two core wires I is 8 times of the diameter of the core wire I;
s4, cabling: twisting the twisted core wires of the plurality of groups prepared in the step S3 according to a specified twisting pitch to obtain a semi-finished cable I, and then wrapping a polytetrafluoroethylene flexible fluorine film on the outer peripheral side of the semi-finished cable I to obtain a finished cable I; twisting the core wires II of each group prepared in the step S2 repeatedly according to a specified twisting pitch to obtain a semi-finished product cable II, and then wrapping a polytetrafluoroethylene flexible fluorine film on the outer peripheral side of the semi-finished product cable II to obtain a finished product cable II; in the embodiment, the lay length of the double twisting of the twisted core wire is 8 times of the diameter of the first core wire, and the lay length of the double twisting of the second core wire is 8 times of the diameter of the second core wire;
s5, coating a shielding layer: wrapping the finished cable I obtained in the step S4 with a flexible aluminum foil shielding layer 14 by a paper wrapping machine, and then weaving a copper wire mesh shielding layer 15 on the outer peripheral side of the aluminum foil shielding layer 14 by a high-speed weaving machine to obtain a shielded finished cable I; wherein, the weaving density of the copper wire mesh shielding layer 15 is more than 90%;
s6 extrusion coating: and (4) extruding and pressing the shielded finished cable I obtained in the step (S5) and the finished cable II obtained in the step (S4) on an extrusion molding production line through a specially designed flat inner eye film die and a flat outer eye film die to coat a layer of outer sheath 3, thus obtaining the self-supporting flat sensing signal connection control combined cable for the automatic hoisting equipment.
Example 2:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 1 lies in: the insulating layer 12 in this embodiment is specifically prepared by mixing, melting, extruding, and cooling the following raw materials in percentage by weight:
styrene-butadiene block copolymer hydride: 44%;
white mineral oil: 20.9 percent;
octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate: 0.1 percent;
polypropylene: 15 percent;
calcium carbonate: 20 percent.
The outer sheath 3 in the embodiment is prepared by mixing, melting, extruding and cooling the following raw materials in percentage by weight: polyvinyl chloride powder: 43 percent;
trioctyl trimellitate: 36 percent;
a toughening agent: 1.5 percent
Modifying agent: 13 percent;
calcium zinc stabilizer: 2.6 percent;
polyethylene: 0.2 percent;
antimony trioxide: 2.2 percent;
calcium carbonate: 1.5 percent.
Example 3:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 1 lies in: the insulating layer 12 in this embodiment is specifically prepared by mixing, melting, extruding, and cooling the following raw materials in percentage by weight:
styrene-butadiene block copolymer hydride: 42.8 percent;
white mineral oil: 22 percent;
octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate: 0.2 percent;
polypropylene: 30 percent;
calcium carbonate: 5 percent.
The outer sheath 3 in the embodiment is prepared by mixing, melting, extruding and cooling the following raw materials in percentage by weight: polyvinyl chloride powder: 40.4 percent;
trioctyl trimellitate: 39 percent;
a toughening agent: 1.0 percent
Modifying agent: 13 percent;
calcium zinc stabilizer: 2.7 percent;
polyethylene: 0.2 percent;
antimony trioxide: 2.2 percent;
calcium carbonate: 1.5 percent.
Example 4:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 1 lies in:
the insulating layer 12 in this embodiment is specifically prepared by mixing, melting, extruding, and cooling the following raw materials in percentage by weight:
styrene-butadiene block copolymer hydride: 39 percent;
white mineral oil: 14 percent;
octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate: 0.1 percent;
polypropylene: 26.9 percent;
calcium carbonate: 20 percent.
The outer sheath 3 in the embodiment is prepared by mixing, melting, extruding and cooling the following raw materials in percentage by weight: polyvinyl chloride powder: 39 percent;
trioctyl trimellitate: 38.4 percent;
a toughening agent: 1.0 percent
Modifying agent: 16 percent;
calcium zinc stabilizer: 2.5 percent;
polyethylene: 0.1 percent;
antimony trioxide: 2.0 percent;
calcium carbonate: 1.0 percent.
Example 5:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 1 lies in: in this embodiment, the modifier for manufacturing the outer sheath 3 is modified antimony trioxide, and the modification method of the antimony trioxide is as follows: step (1), preparing a modified solution: adding 60g of sodium stearate, 25g of polyethylene glycol 200, 45g of sodium dodecyl benzene sulfonate, 2000g of absolute ethyl alcohol and 2000g of water into an ultrasonic machine, starting the ultrasonic machine to dissolve and uniformly mix raw materials for preparing the modified liquid to obtain the modified liquid;
step (2), modification treatment: pouring the modified liquid into an ultrasonic machine, immersing the antimony trioxide in the modified liquid,
then starting an ultrasonic machine to carry out ultrasonic vibration soaking modification on the antimony trioxide, heating the temperature of the modification liquid and controlling the temperature to be 45 ℃, wherein the average grain diameter of the antimony trioxide soaked in the modification liquid is 30 meshes;
and (3) drying treatment: and fishing out the modified antimony trioxide, and drying to obtain the modified antimony trioxide.
Example 6:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 5 lies in:
(1) the composition of the modified liquid is as follows: 70g of sodium stearate, 20g of polyethylene glycol 200, 50g of sodium dodecyl benzene sulfonate, 2000g of absolute ethyl alcohol and 2000g of water;
(2) the temperature of the modification liquid in the modification treatment is 50 ℃, wherein the average grain diameter of the antimony trioxide soaked in the modification liquid is 20 meshes.
Example 7:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 5 lies in:
(1) the composition of the modified liquid is as follows: 50g of sodium stearate, 30g of polyethylene glycol 200, 40g of sodium dodecyl benzene sulfonate, 2000g of absolute ethyl alcohol and 2000g of water;
(2) the temperature of the modification liquid in the modification treatment is 40 ℃, wherein the average grain diameter of the antimony trioxide soaked in the modification liquid is 40 meshes.
Comparative example 1:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 5 lies in:
sodium stearate was not added to the modified solution.
Comparative example 2:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 5 lies in:
polyethylene glycol was not added to the modified solution.
Comparative example 3:
the utility model provides a be used for automatic lifting device self-supporting flat sensing signal connection control combination cable, the difference with embodiment 5 lies in:
sodium dodecyl sulfate is not added into the modification liquid.
Performance data detection
And (3) testing the bending resistance: the test is carried out by adopting a TH8037 drag chain cable repeated bending flexibility tester.
The self-supporting flat type sensing signal connection control combined cable of the automatic hoisting equipment prepared in the embodiments 1 to 7 and the comparative examples 1 to 3 is subjected to the anti-bending performance test according to the method, and the test results are shown in the following table 2:
TABLE 2 results of bending resistance test of examples 1 to 7 and comparative examples 1 to 3
From a comparison of the data in examples 1-4 in Table 2, it can be seen that: under the condition that other conditions are not changed, the mixture ratio of the raw materials in the outer sheath 3 and the insulating layer 12 is changed within a certain range, and the combined cable with the bending times of more than 2000 ten thousand can be obtained.
As can be seen from the comparison of the data in Table 2 for example 1 and examples 5-7: under the condition that other conditions are not changed, the polyvinyl chloride material for manufacturing the outer sheath 3 is modified by the modified antimony trioxide, compared with the outer sheath 3 obtained by modifying unmodified antimony trioxide, the outer sheath 3 obtained by the method has better bending resistance when the modified polyvinyl chloride obtained by modifying the modified antimony trioxide is used for preparing the outer sheath 3 of the combined cable.
As can be seen from the comparison of the data in example 5 and comparative examples 1-3 in Table 2: the sodium stearate, the polyethylene glycol and the sodium dodecyl benzene sulfonate have a synergistic effect, and when any one of the three substances is absent in the modifying liquid, the elimination effect of the interface difference between the obtained modified antimony trioxide and the polyvinyl chloride and the plasticizer is poor, so that the bending resistance of the combined cables is reduced.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a be used for automatic lifting device self-supporting flat type sensing signal connection control combination cable, includes oversheath (3) that are the platykurtic, its characterized in that: the wire harness is characterized in that a plurality of core wire assemblies I (1) and a plurality of core wire assemblies II (2) which are linearly arranged are wrapped in the outer sheath (3), wherein the outer sheath (3) is made of the following raw materials in parts by weight:
polyvinyl chloride powder: 39-43 percent;
plasticizer: 36 to 39 percent;
a toughening agent: 1.0 to 1.5 percent
Modifying agent: 13 to 16 percent;
calcium zinc stabilizer: 2.5-2.7%;
lubricant: 0.1 to 0.2 percent;
flame retardant: 2.0-2.2%;
calcium carbonate: 1.0 to 1.5 percent;
wherein the modifier is antimony trioxide.
2. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 1, wherein: the core wire assembly I (1) comprises a plurality of core wires I and a fixing layer (13) coated on the periphery of the core wires I, and the core wire assembly II (2) comprises a plurality of core wires II and a fixing layer (13) coated on the periphery of the core wires II; the plurality of core wires I are twisted pairwise according to the specified twisting pitch to form a plurality of paired twisted core wires, and then the plurality of paired twisted core wires are twisted repeatedly according to the specified twisting pitch to form a semi-finished cable, and then the semi-finished cable is wound and wrapped by the fixing layer (13); and a plurality of second core wires are directly twisted repeatedly according to a specified twisting pitch to form a semi-finished cable, and then a fixed layer (13) is wrapped.
3. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 2, wherein: the first core wire and the second core wire respectively comprise a conductor (11) and an insulating layer (12) wrapped on the outer peripheral side of the conductor (11), and the conductor (11) is formed by embedding a plurality of strands of high-flexibility oxygen-free copper filaments into bulletproof wires and twisting the bulletproof wires into a bundle; the bulletproof wire is positioned in the center of the conductor (11), and a plurality of strands of high-flexibility oxygen-free copper filaments are stranded on the outer periphery of the bulletproof wire according to a specified lay length.
4. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 3, wherein: the insulating layer (12) adopts modified TPE elastomer material, modified TPE elastomer material is made by the raw materials including following parts by weight:
styrene-butadiene block copolymer hydride: 34 to 44 percent;
white mineral oil: 14 to 26 percent;
antioxidant: 0.1 to 0.2 percent;
polypropylene: 15 to 30 percent;
calcium carbonate: 5 to 20 percent.
5. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 2, wherein: the outer peripheral side of the fixing layer (13) of the first core wire assembly (1) comprises a shielding layer, the shielding layer comprises an aluminum foil shielding layer (14) and a copper wire mesh shielding layer (15), the aluminum foil shielding layer (14) wraps the outer peripheral side of the fixing layer (13) of the first core wire assembly, and the copper wire mesh shielding layer (15) wraps the outer peripheral side of the aluminum foil shielding layer (14); the copper wire mesh shielding layer (15) is wrapped in a weaving mode, and the weaving density of the copper wire mesh shielding layer (15) is more than 90%.
6. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 2, wherein: the fixed layer (13) is a polytetrafluoroethylene flexible fluorine film.
7. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 1, wherein: the modifier is modified antimony trioxide, and the preparation method of the modified antimony trioxide comprises the following steps:
step (1), preparing a modified solution: adding sodium stearate, polyethylene glycol, sodium dodecyl benzene sulfonate, absolute ethyl alcohol and water into an ultrasonic machine, starting the ultrasonic machine to dissolve raw materials for preparing the modified liquid, and uniformly mixing to obtain the modified liquid;
step (2), modification treatment: pouring the modified liquid into an ultrasonic machine, immersing the antimony trioxide in the modified liquid, starting the ultrasonic machine to perform ultrasonic vibration soaking modification on the antimony trioxide, and heating the modified liquid at a temperature of between 40 and 50 ℃;
and (3) drying treatment: and fishing out the modified antimony trioxide, and drying to obtain the modified antimony trioxide.
8. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 7, wherein: the modified liquid comprises the following raw materials in parts by weight:
sodium stearate: 50-70 parts;
polyethylene glycol: 20-30 parts of a solvent;
sodium dodecylbenzenesulfonate: 40-50 parts;
anhydrous ethanol: 2000 parts;
water: 2000 parts.
9. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 7, wherein: the average grain diameter range of the antimony trioxide is 20-40 meshes.
10. The self-supporting flat sensing signal connection control combination cable for the automatic hoisting equipment as claimed in claim 7, wherein: the polyethylene glycol is any one or a mixture of two of polyethylene glycol 200 and polyethylene glycol 400.
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