CN113583340A - High-strength insulating MPP power cable pipe and preparation method thereof - Google Patents
High-strength insulating MPP power cable pipe and preparation method thereof Download PDFInfo
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- CN113583340A CN113583340A CN202110857133.0A CN202110857133A CN113583340A CN 113583340 A CN113583340 A CN 113583340A CN 202110857133 A CN202110857133 A CN 202110857133A CN 113583340 A CN113583340 A CN 113583340A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 28
- -1 polypropylene Polymers 0.000 claims abstract description 27
- 239000004743 Polypropylene Substances 0.000 claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003063 flame retardant Substances 0.000 claims abstract description 19
- 239000004611 light stabiliser Substances 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 17
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 17
- 239000004014 plasticizer Substances 0.000 claims abstract description 13
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 12
- 239000000806 elastomer Substances 0.000 claims abstract description 12
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 12
- 238000012661 block copolymerization Methods 0.000 claims abstract description 7
- 238000005303 weighing Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 29
- 238000002156 mixing Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 12
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 229920000297 Rayon Polymers 0.000 claims description 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical group [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims 1
- 229920001400 block copolymer Polymers 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 61
- 238000007605 air drying Methods 0.000 description 19
- 230000000903 blocking effect Effects 0.000 description 19
- 238000009423 ventilation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Natural products OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- VQKWAUROYFTROF-UHFFFAOYSA-N arc-31 Chemical compound O=C1N(CCN(C)C)C2=C3C=C4OCOC4=CC3=NN=C2C2=C1C=C(OC)C(OC)=C2 VQKWAUROYFTROF-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/02—Deburring or deflashing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a high-strength insulating MPP power cable pipe and a preparation method thereof, wherein the high-strength insulating MPP power cable pipe comprises the following components in parts by weight: 75-85 parts of isotactic polypropylene resin, 6-10 parts of elastomer rubber CPE6, 7-9 parts of block copolymer polypropylene, 24-26 parts of ultra-high molecular weight polyethylene resin, 3-5 parts of flame retardant, 8-12 parts of plasticizer, 1-3 parts of antioxidant, 1-4 parts of light stabilizer and 2-5 parts of mixed auxiliary material; the preparation method comprises the following steps: weighing isotactic polypropylene resin, elastomer rubber CPE, block copolymerization polypropylene, ultra-high molecular weight polyethylene resin, a flame retardant, a plasticizer, an antioxidant, a light stabilizer and mixed auxiliary materials according to the weight part ratio; the cable tube body prepared by the invention has good insulativity and high strength, and has good wear resistance and longer service life when being applied.
Description
Technical Field
The invention relates to the technical field of cable pipes, in particular to a high-strength insulating MPP power cable pipe and a preparation method thereof.
Background
The MPP power pipe is divided into a common type and a reinforced type, the reinforced type is divided into an excavated pipe and a non-excavated pipe, and the MPP non-excavated pipe is also called as an MPP jacking pipe, an MPP dragging pipe and an MPP traction pipe. The MPP power pipe adopts the modified polypropylene as the main raw material, and is a construction project for laying pipelines, cables and the like in special sections such as roads, railways, buildings, riverbeds and the like without digging a large amount of mud, digging soil and damaging road surfaces. Compared with the traditional 'trenching and pipe burying method', the trenchless power pipe engineering is more suitable for the current environmental protection requirement, the disturbing factors such as dust flying, traffic jam and the like caused by the traditional construction are eliminated, the technology can also be used for laying pipelines in areas where the trenching operation cannot be implemented, such as historic site protection areas, downtown areas, crop and farmland protection areas, expressways, rivers and the like, the finished products need to be cut into required lengths before being put into use, and when the existing cutting equipment is used, the cut is not flat, and the subsequent cut needs to be polished.
Disclosure of Invention
The invention aims to provide a high-strength insulating MPP power cable pipe and a preparation method thereof, and solves the following technical problems: the cut is not flat when the finished cable pipe product is cut, and a user needs to polish the cut subsequently, so that a great deal of time is spent, the production speed is reduced, and the economic benefit is reduced;
the ultra-high molecular weight polyethylene resin has excellent electrical insulation performance, but is very sensitive to environmental stress, so that the performance is improved by adding the isotactic polypropylene resin, the elastomer rubber CPE and the block copolymer polypropylene, and the strength of a finished product of the cable pipe is increased;
the cable tube body prepared by the invention has good insulativity and high strength, and has good wear resistance and longer service life when being applied.
The purpose of the invention can be realized by the following technical scheme:
the invention relates to a high-strength insulating MPP power cable pipe, which comprises the following components in parts by weight: 75-85 parts of isotactic polypropylene resin, 6-10 parts of elastomer rubber CPE6, 7-9 parts of block copolymer polypropylene, 24-26 parts of ultra-high molecular weight polyethylene resin, 3-5 parts of flame retardant, 8-12 parts of plasticizer, 1-3 parts of antioxidant, 1-4 parts of light stabilizer and 2-5 parts of mixed auxiliary material;
the high-strength insulating MPP power cable pipe is prepared by the following steps:
weighing isotactic polypropylene resin, elastomer rubber CPE, block copolymerization polypropylene, ultra-high molecular weight polyethylene resin, a flame retardant, a plasticizer, an antioxidant, a light stabilizer and mixed auxiliary materials according to the weight part ratio;
step two, adding the components weighed in the step one into a mixer, mixing and stirring uniformly at the mixing speed of 720 plus 750rpm at the mixing temperature of 96-98 ℃ for 15-20min, transferring the uniformly mixed materials into a cooling stirrer, stirring at the stirring speed of 1650 plus 1750rpm for 5-10min at the temperature of 58-62 ℃, and cooling to room temperature to obtain prefabricated materials;
step three: and (3) injecting the prefabricated material obtained in the third step into a conical double-screw extruder, extruding to obtain a finished product of the high-strength insulating MPP power cable pipe, and cutting the finished product by using cutting equipment.
As a further scheme of the invention: the light stabilizer is a hindered light stabilizer; the antioxidant is an environment-friendly antioxidant.
As a further scheme of the invention: the plasticizer is citric acid ester; the weight ratio of the flame retardant to the talcum powder to the flame-retardant viscose fiber to the intumescent flame retardant is 1.5: 1.6: 1.2.
As a further scheme of the invention: the mixed auxiliary material is prepared from superfine molybdenum dioxide, superfine chromium oxide powder and a lubricant according to the mass ratio of 3:4: 2.
As a further scheme of the invention: the lubricant is a mixture of silicone oil and paraffin wax in a weight ratio of 1: 1.2.
A preparation method of a high-strength insulation MPP power cable pipe comprises the following steps:
weighing isotactic polypropylene resin, elastomer rubber CPE, block copolymerization polypropylene, ultra-high molecular weight polyethylene resin, a flame retardant, a plasticizer, an antioxidant, a light stabilizer and mixed auxiliary materials according to the weight part ratio;
step two, adding the components weighed in the step one into a mixer, mixing and stirring uniformly at the mixing speed of 720 plus 750rpm at the mixing temperature of 96-98 ℃ for 15-20min, transferring the uniformly mixed materials into a cooling stirrer, stirring at the stirring speed of 1650 plus 1750rpm for 5-10min at the temperature of 58-62 ℃, and cooling to room temperature to obtain prefabricated materials;
step three: and (3) injecting the prefabricated material obtained in the third step into a conical double-screw extruder, extruding to obtain a finished product of the high-strength insulating MPP power cable pipe, and cutting the finished product by using cutting equipment.
As a further scheme of the invention: this cut-off equipment includes the base, the upper end of base is provided with guiding mechanism, one side of guiding mechanism is provided with air-dry box, blocks the mechanism, cleans the box and cuts off the mechanism, block the mechanism and clean the box and all be located air-dry box and cut off between the mechanism, the inside symmetry of air-drying the box is provided with air-dry mechanism, the inside of cleaning the box is provided with cleans the mechanism, air-dry box is located one side that cuts off the mechanism and is close to guiding mechanism, it is located one side that blocks the mechanism and keeps away from guiding mechanism to clean the box, guiding mechanism's opposite side is provided with the cable pipe body, the front end of air-drying the box is provided with the fan, the upper end of base still is provided with down the silo, the silo is located one side that cutting off the mechanism and keep away from guiding mechanism down.
As a further scheme of the invention: air-dry mechanism contains the set tuber pipe, the quantity of set tuber pipe is a plurality of, a plurality of the set tuber pipe is vertical equidistance and arranges on the inside wall of air-drying the box, a plurality of one side of set tuber pipe is connected with the air-supply line, the air-supply line is located the inside of air-drying the box, be provided with a plurality of ventilation branch pipe on the opposite side surface of set tuber pipe, a plurality of ventilation branch pipe is the level equidistance and arranges.
As a further scheme of the invention: the guide mechanism comprises a guide plate, guide rotary drums are symmetrically installed at the lower ends of the guide plate, the upper ends of the guide rotary drums extend to the upper surface of the guide plate, the lower ends of the guide rotary drums extend to the inside of a base, driving motors are arranged in the base, and the lower end of one of the guide rotary drums is connected with the output end of the driving motor.
As a further scheme of the invention: blocking mechanism contains arc one and is located the arc two of arc one side, be provided with between arc one and the arc two and block ring two, be provided with the plectrum on the surface of blocking ring one, be provided with the spout one with plectrum looks adaptation on the arc two, block ring one and rotate with arc one and arc two respectively and be connected, block ring two respectively with arc one and arc two welded fastening, it blocks the piece to be arranged to be the annular array on the internal surface of blocking ring one, block and be provided with on ring two and block the draw-in groove of piece looks adaptation.
As a further scheme of the invention: clean the mechanism and contain bottom plate, rotating electrical machines, connecting block, collar, swivel becket and clean the board, rotating electrical machines and connecting block all are located the upper end of bottom plate, the connecting block is located one side of rotating electrical machines, the upper end fixed mounting of connecting block has the collar, one side of collar is rotated and is installed the swivel becket, be the driving piece of annular array arrangement on the internal surface of swivel becket, the output of driving piece is connected with cleans the board, the cover is equipped with the ring gear on rotating electrical machines's the output, ring gear and swivel becket meshing are connected.
As a further scheme of the invention: the cutting mechanism comprises a fixed seat, a first fixed block, a first sliding block, a cylinder, a cutting wheel, a second sliding block, a telescopic rod, a first driven wheel, a second fixed block, a second driven wheel, a driving wheel and a third driven wheel, wherein the first fixed block and the first sliding block are arranged at the upper end of the fixed seat, the first fixed block is arranged at one side of the first sliding block, the second sliding block and the second fixed block are both arranged at one side of the first sliding block, the second sliding block is arranged at one side of the second fixed block, the second sliding block is connected with the telescopic rod at one side far away from the second fixed block, the first driven wheel is rotatably arranged on the second sliding block, the second driven wheel, the driving wheel and the third driven wheel are rotatably arranged on the second fixed block, the third driven wheel and the driving wheel are both arranged at one side far away from the first fixed block, and the upper end of the third driven wheel extends into the second sliding chute arranged at the upper end of the second fixed block, be provided with the elastic component in the spout two, the spring promptly, the spring is connected with the upper end from driving wheel three, from driving wheel one, from driving wheel two, action wheel and from all built-in pivot from driving wheel three, the spring is connected with the upper end from the pivot of driving wheel three built-in, fixed block two embeds there is the rotation motor that is used for driving action wheel pivoted, the upper end of fixing base is provided with three spouts with a sliding block looks adaptation, one side of fixing base is provided with the cylinder, the cylinder is used for driving sliding block one and is sharp back and forth movement in spout three, the one end that sliding block one is close to fixed block one is rotated and is installed the cutting wheel, be provided with on the sliding block one and be used for driving the cutting wheel and carry out pivoted cutting motor.
As a further scheme of the invention: the working method of the cut-off equipment comprises the following steps: the one end of cable pipe body gets into the inside of air-drying the box through guide mechanism earlier and air-dries, then blocks the mechanism again, and the surface of cable pipe body is cleaned to the inside of getting into to clean the box, gets into at last and blocks the mechanism and cut.
The invention has the beneficial effects that:
the hindered light stabilizer is adopted, almost has no ultraviolet absorption capacity, but can effectively capture active free radicals generated by a high polymer material under the action of ultraviolet rays, so that the light stabilization effect is exerted, the effect is particularly remarkable in polyolefin, the light resistance is multiple times of that of a common ultraviolet absorbent, the hindered light stabilizer is free of coloring and pollution, the heat resistance processability is good, and the hindered light stabilizer has an excellent synergistic effect and better performance when matched with an environment-friendly antioxidant;
the ultra-high molecular weight polyethylene resin has excellent electrical insulation performance, but is very sensitive to environmental stress, so that the performance is improved by adding the isotactic polypropylene resin, the elastomer rubber CPE and the block copolymer polypropylene, and the strength of a finished product of the cable pipe is increased;
therefore, the cable tube body prepared by the method has good insulativity and high strength, and has good wear resistance and longer service life when being applied;
the arranged air drying mechanism blows away heat on the surface of the cable tube body, so that the effect of rapid cooling can be achieved;
the driving piece pushes the wiping plate until the wiping plate is tightly attached to the outer surface of the cable pipe body, the driving piece can be an electric telescopic rod, an air cylinder or an oil cylinder, meanwhile, a rotating motor is started to drive a toothed ring to rotate together, the toothed ring is meshed with the rotating ring to be connected, the rotating ring is driven to rotate, the wiping plate is driven to rotate, the outer surface of the cable pipe body is wiped, burrs on the outer surface of the cable pipe body are removed through the arranged wiping mechanism, the attractiveness can be improved, and the production quality is guaranteed;
the cable duct body is located the action wheel and follows between the driving wheel three, hugs closely on the surface of cable duct body respectively from driving wheel one and follow driving wheel two simultaneously for when cutting the cable duct body, be difficult for appearing violent shake, the skew is difficult for appearing in the position, cuts the incision and levels more, has practiced thrift the follow-up time of polishing the cost to the incision of user, has improved economic benefits.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a top view of the cutoff apparatus of the present invention;
FIG. 2 is a schematic view of the air drying mechanism according to the present invention;
FIG. 3 is a top view of the guide mechanism of the present invention;
FIG. 4 is a side view of the blocking mechanism of the present invention;
FIG. 5 is a side view of the wiping mechanism of the present invention;
FIG. 6 is a top view of the shut-off mechanism of the present invention;
FIG. 7 is a flow chart of the manufacturing process of the present invention.
In the figure: 1. a guide mechanism; 2. air-drying the box body; 3. a blocking mechanism; 4. wiping the box body; 5. a cutting mechanism; 6. a fan; 7. a base; 8. a discharging groove; 9. a cable tube body; 21. collecting air pipes; 22. a ventilation branch pipe; 23. an air inlet pipe; 11. a guide plate; 12. a guide drum; 31. a first arc plate; 32. a second arc-shaped plate; 33. a shifting sheet; 34. a first blocking ring; 35. a blocking block; 41. a base plate; 42. a rotating electric machine; 43. connecting blocks; 44. a mounting ring; 45. a rotating ring; 46. wiping the board; 51. a fixed seat; 52. a first fixed block; 53. a first sliding block; 54. a cylinder; 55. a cutting wheel; 56. a second sliding block; 57. a telescopic rod; 58. a driven wheel I; 59. a second fixed block; 510. a second driven wheel; 511. a driving wheel; 512. and a third driven wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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. 1-7, the present invention is a high strength insulated MPP power cable pipe, comprising the following components by weight: 75-85 parts of isotactic polypropylene resin, 6-10 parts of elastomer rubber CPE6, 7-9 parts of block copolymer polypropylene, 24-26 parts of ultra-high molecular weight polyethylene resin, 3-5 parts of flame retardant, 8-12 parts of plasticizer, 1-3 parts of antioxidant, 1-4 parts of light stabilizer and 2-5 parts of mixed auxiliary material;
the high-strength insulating MPP power cable pipe is prepared by the following steps:
weighing isotactic polypropylene resin, elastomer rubber CPE, block copolymerization polypropylene, ultra-high molecular weight polyethylene resin, a flame retardant, a plasticizer, an antioxidant, a light stabilizer and mixed auxiliary materials according to the weight part ratio;
step two, adding the components weighed in the step one into a mixer, mixing and stirring uniformly at the mixing speed of 720 plus 750rpm at the mixing temperature of 96-98 ℃ for 15-20min, transferring the uniformly mixed materials into a cooling stirrer, stirring at the stirring speed of 1650 plus 1750rpm for 5-10min at the temperature of 58-62 ℃, and cooling to room temperature to obtain prefabricated materials;
step three: and (3) injecting the prefabricated material obtained in the third step into a conical double-screw extruder, extruding to obtain a finished product of the high-strength insulating MPP power cable pipe, and cutting the finished product by using cutting equipment.
The light stabilizer is a hindered light stabilizer; the antioxidant is an environment-friendly antioxidant.
The plasticizer is citric acid ester; the weight ratio of the flame retardant to the talcum powder to the flame-retardant viscose fiber to the intumescent flame retardant is 1.5: 1.6: 1.2.
The mixed auxiliary material is prepared from superfine molybdenum dioxide, superfine chromium oxide powder and a lubricant according to the mass ratio of 3:4: 2.
The lubricant is a mixture of silicone oil and paraffin wax in a weight ratio of 1: 1.2.
A preparation method of a high-strength insulation MPP power cable pipe comprises the following steps:
weighing isotactic polypropylene resin, elastomer rubber CPE, block copolymerization polypropylene, ultra-high molecular weight polyethylene resin, a flame retardant, a plasticizer, an antioxidant, a light stabilizer and mixed auxiliary materials according to the weight part ratio;
step two, adding the components weighed in the step one into a mixer, mixing and stirring uniformly at the mixing speed of 720 plus 750rpm at the mixing temperature of 96-98 ℃ for 15-20min, transferring the uniformly mixed materials into a cooling stirrer, stirring at the stirring speed of 1650 plus 1750rpm for 5-10min at the temperature of 58-62 ℃, and cooling to room temperature to obtain prefabricated materials;
step three: and (3) injecting the prefabricated material obtained in the third step into a conical double-screw extruder, extruding to obtain a finished product of the high-strength insulating MPP power cable pipe, and cutting the finished product by using cutting equipment.
The cutting-off equipment comprises a base 7, a guide mechanism 1 is arranged at the upper end of the base 7, an air drying box body 2, a cutting-off mechanism 3, a wiping box body 4 and a cutting-off mechanism 5 are arranged at one side of the guide mechanism 1, the blocking mechanism 3 and the wiping box body 4 are both positioned between the air drying box body 2 and the blocking mechanism 5, the air drying mechanism is symmetrically arranged inside the air drying box body 2, the inside of the wiping box body 4 is provided with a wiping mechanism, the air drying box body 2 is positioned at one side of the cutting mechanism 5 close to the guide mechanism 1, the wiping box body 4 is positioned at one side of the blocking mechanism 3 far away from the guide mechanism 1, the other side of the guide mechanism 1 is provided with a cable tube body 9, the front end of the air drying box body 2 is provided with a fan 6, the upper end of the base 7 is further provided with a blanking groove 8, and the blanking groove 8 is located on one side, far away from the guide mechanism 1, of the cutting mechanism 5.
Air-dry mechanism contains set tuber pipe 21, the quantity of set tuber pipe 21 is a plurality of, a plurality of set tuber pipe 21 is vertical equidistance and arranges on the inside wall of air-drying box 2, a plurality of one side of set tuber pipe 21 is connected with air-supply line 23, air-supply line 23 is located air-drying box 2's inside, be provided with a plurality of ventilation branch pipe 22 on the opposite side surface of set tuber pipe 21, a plurality of ventilation branch pipe 22 is the level equidistance and arranges.
The guide mechanism 1 comprises a guide plate 11, guide drums 12 are symmetrically installed at the lower ends of the guide plate 11, the upper ends of the guide drums 12 extend to the upper surface of the guide plate 11, the lower ends of the guide drums 12 extend to the inside of a base 7, driving motors are arranged inside the base 7, and the lower end of one of the guide drums 12 is connected with the output end of the driving motor.
Blocking mechanism 3 contains the arc two 32 of 31 and the arc that is located one 31 one side of arc, be provided with between arc 31 and the arc two 32 and block ring two 34, be provided with plectrum 33 on the surface of blocking ring one 34, be provided with the spout one with plectrum 33 looks adaptation on the arc two 32, block ring one 34 and rotate with arc 31 and arc two 32 respectively and be connected, block ring two respectively with arc 31 and arc two 32 welded fastening, it blocks piece 35 to be the annular array and arrange on the internal surface of blocking ring one 34, block ring two and be provided with and block the draw-in groove of piece 35 looks adaptation.
Wiping mechanism contains bottom plate 41, rotating electrical machines 42, connecting block 43, collar 44, swivel ring 45 and wipes board 46, rotating electrical machines 42 and connecting block 43 all are located bottom plate 41's upper end, connecting block 43 is located one side of rotating electrical machines 42, the upper end fixed mounting of connecting block 43 has collar 44, collar 45 is installed in one side rotation of collar 44, be the driving piece that has arranged of annular array on the internal surface of swivel ring 45, the output of driving piece is connected with wipes board 46, the cover is equipped with the ring gear on the output of rotating electrical machines 42, and ring gear and 45 meshes of swivel ring and connect.
The cutting mechanism 5 comprises a fixed seat 51, a first fixed block 52, a first sliding block 53, an air cylinder 54, a cutting wheel 55, a second sliding block 56, a telescopic rod 57, a first driven wheel 58, a second fixed block 59, a second driven wheel 510, a driving wheel 511 and a third driven wheel 512, wherein the first fixed block 52 and the first sliding block 53 are arranged at the upper end of the fixed seat 51, the first fixed block 52 is positioned at one side of the first sliding block 53, the second sliding block 56 and the second fixed block 59 are also arranged at the upper end of the fixed seat 51, the second sliding block 56 and the second fixed block 59 are both positioned at one side of the first sliding block 53, the second sliding block 56 is positioned at one side of the second fixed block 59, the telescopic rod 57 is connected to one side of the second sliding block 56, the first driven wheel 58 is rotatably mounted on the second sliding block 56, the second driven wheel 510, the driving wheel 511 and the third driven wheel 512 are rotatably mounted on the second fixed block 59, the driven wheel III 512 and the driving wheel 511 are both positioned on one side, away from the fixed block I52, of the driven wheel II 510, the upper end of the driven wheel III 512 extends into a sliding groove II arranged at the upper end of the fixed block II 59, an elastic part, namely a spring, is arranged in the sliding groove II, the spring is connected with the upper end of the driven wheel III 512, rotating shafts are arranged in the driven wheel I58, the driven wheel II 510, the driving wheel 511 and the driven wheel III, the spring is connected with the upper end of the rotating shaft arranged in the driven wheel III 512, a rotating motor used for driving the driving wheel 511 to rotate is arranged in the fixed block II 59, the upper end of the fixed seat 51 is provided with a sliding groove III matched with the sliding block I53, one side of the fixed seat 51 is provided with an air cylinder 54, the air cylinder 54 is used for driving the sliding block I53 to do linear reciprocating motion in the sliding groove III, and one end, close to the fixed block I52, of the sliding block I53 is rotatably provided with a cutting wheel 55, and a cutting motor for driving the cutting wheel 55 to rotate is arranged on the first sliding block 53.
The working method of the cut-off equipment comprises the following steps: the one end of cable pipe body 9 is air-dried through the inside that guiding mechanism 1 got into air-dry box 2 earlier, then blocks mechanism 3 again, and the surface of cable pipe body 9 is cleaned to the inside that gets into to clean box 4, gets into at last and cuts mechanism 5 and cut.
The working principle of the invention is as follows:
one end of a cable tube body 9 passes through a guide mechanism 1, a driving motor is started to drive one of guide rotary drums 12 to rotate, one end of the cable tube body 9 is positioned between the two guide rotary drums 12, the cable tube body 9 is guided into an air drying box body 2, a fan 6 is started, external air enters the air drying box body 2 through an air inlet pipe 23, a collecting air pipe 21 and a ventilation branch pipe 22 due to the fact that the fan 6 is communicated with the air drying mechanism, heat on the surface of the cable tube body 9 is blown away, the effect of rapid cooling is achieved, the cable tube body 9 is continuously conveyed to a blocking mechanism 3, at the moment, a poking piece 33 is poked downwards for 45 degrees in a sliding groove I, a blocking block 35 is clamped in a clamping groove arranged on a blocking ring II, the passing of the cable tube body 9 cannot be blocked, the blocking mechanism 3 is in a passing state, the poking piece 33 is poked upwards for 45 degrees in the sliding groove I in the passing state, the blocking block 35 is drawn out from the clamping groove, blocks the end head part of the cable tube body 9 or extrudes the outer surface of the cable tube body 9, blocks the cable tube body in a friction force increasing mode, and is in a blocking state;
the cable tube body 9 reaches the inside of the wiping box body 4, the driving piece is started to push the wiping plate 46 until the wiping plate 46 is tightly attached to the outer surface of the cable tube body 9, the driving piece can be an electric telescopic rod, an air cylinder or an oil cylinder, meanwhile, the rotating motor 42 is started to drive the gear ring to rotate together, the gear ring is meshed and connected with the rotating ring 45, the rotating ring 45 is driven to rotate, the wiping plate 46 is driven to rotate, the outer surface of the cable tube body 9 is wiped, burrs on the outer surface of the cable tube body 9 are removed, the appearance is attractive, the cable tube body 9 finally enters the cut-off mechanism 5, the cable tube body 9 is positioned between the driving wheel 511 and the driven wheel III 512, the telescopic rod 57 is started to push the sliding block II 56 until the driven wheel I58 and the driven wheel II 510 are respectively tightly attached to the outer surface of the cable tube body 9, and the rotating motor which is arranged in the fixing block II 59 and is used for driving the driving wheel 511 to rotate is started, drive action wheel 511 and rotate, carry cable duct body 9 to between fixed block 52 and sliding block 53, start cylinder 54 and promote sliding block 53 to the direction removal that is close to cable duct body 9 in spout three, start cutting motor simultaneously and drive cutting wheel 55 and rotate, cut cable duct body 9, the part that cuts drops to in the feed chute 8, 8 downward sloping 45 degrees of feed chute down, and the lower port of feed chute 8 has placed the receipts workbin, the part that cuts gets into and is collected in the receipts workbin.
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. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, 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.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. A preparation method of a high-strength insulation MPP power cable pipe is characterized by comprising the following steps:
weighing isotactic polypropylene resin, elastomer rubber CPE, block copolymerization polypropylene, ultra-high molecular weight polyethylene resin, a flame retardant, a plasticizer, an antioxidant, a light stabilizer and mixed auxiliary materials according to the weight part ratio;
step two, adding the components weighed in the step one into a mixer, mixing and stirring uniformly at the mixing speed of 720 plus 750rpm at the mixing temperature of 96-98 ℃ for 15-20min, transferring the uniformly mixed materials into a cooling stirrer, stirring at the stirring speed of 1650 plus 1750rpm for 5-10min at the temperature of 58-62 ℃, and cooling to room temperature to obtain prefabricated materials;
step three: and (3) injecting the prefabricated material obtained in the third step into a conical double-screw extruder, extruding to obtain a finished product of the high-strength insulating MPP power cable pipe, and cutting the finished product by using cutting equipment.
2. The high-strength insulation MPP power cable pipe prepared by the preparation method based on the high-strength insulation MPP power cable pipe is characterized by comprising the following components in parts by weight: 75-85 parts of isotactic polypropylene resin, 6-10 parts of elastomer rubber CPE, 7-9 parts of block copolymerization polypropylene, 24-26 parts of ultra-high molecular weight polyethylene resin, 3-5 parts of flame retardant, 8-12 parts of plasticizer, 1-3 parts of antioxidant, 1-4 parts of light stabilizer and 2-5 parts of mixed auxiliary material.
3. The insulated MPP power cable of claim 2, wherein the light stabilizer is a hindered light stabilizer; the antioxidant is an environment-friendly antioxidant.
4. The insulated MPP power cable of claim 2, wherein the plasticizer is a citrate; the weight ratio of the flame retardant to the talcum powder to the flame-retardant viscose fiber to the intumescent flame retardant is 1.5: 1.6: 1.2.
5. The insulated MPP power cable pipe of claim 2, wherein the mixed auxiliary materials are prepared from ultra-fine molybdenum dioxide, ultra-fine chromium oxide powder and lubricant according to a mass ratio of 3:4: 2.
6. The insulated MPP power cable conduit of claim 2, wherein the lubricant is a mixture of silicone oil and paraffin wax in a weight ratio of 1: 1.2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857133.0A CN113583340A (en) | 2021-07-28 | 2021-07-28 | High-strength insulating MPP power cable pipe and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857133.0A CN113583340A (en) | 2021-07-28 | 2021-07-28 | High-strength insulating MPP power cable pipe and preparation method thereof |
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| CN113583340A true CN113583340A (en) | 2021-11-02 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358186A (en) * | 2019-07-04 | 2019-10-22 | 镇江华科通信设备有限公司 | A kind of heat-resistant fireproof MPP cable protection pipe and preparation method thereof |
| CN112625355A (en) * | 2020-12-21 | 2021-04-09 | 安徽杰蓝特新材料有限公司 | Heat-resistant insulating MPP cable pipe and preparation method thereof |
| CN112810098A (en) * | 2020-12-21 | 2021-05-18 | 安徽杰蓝特新材料有限公司 | Insulation flame-retardant MPP power cable pipe and preparation method thereof |
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2021
- 2021-07-28 CN CN202110857133.0A patent/CN113583340A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358186A (en) * | 2019-07-04 | 2019-10-22 | 镇江华科通信设备有限公司 | A kind of heat-resistant fireproof MPP cable protection pipe and preparation method thereof |
| CN112625355A (en) * | 2020-12-21 | 2021-04-09 | 安徽杰蓝特新材料有限公司 | Heat-resistant insulating MPP cable pipe and preparation method thereof |
| CN112810098A (en) * | 2020-12-21 | 2021-05-18 | 安徽杰蓝特新材料有限公司 | Insulation flame-retardant MPP power cable pipe and preparation method thereof |
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Application publication date: 20211102 |