CN112810098A - Insulation flame-retardant MPP power cable pipe and preparation method thereof - Google Patents
Insulation flame-retardant MPP power cable pipe and preparation method thereof Download PDFInfo
- Publication number
- CN112810098A CN112810098A CN202011521137.3A CN202011521137A CN112810098A CN 112810098 A CN112810098 A CN 112810098A CN 202011521137 A CN202011521137 A CN 202011521137A CN 112810098 A CN112810098 A CN 112810098A
- Authority
- CN
- China
- Prior art keywords
- power cable
- belt
- cable pipe
- mpp power
- retardant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
-
- 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
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/274—Cleaning; Purging; Avoiding contamination of the extruded articles
-
- 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
- H02G3/0437—Channels
- H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
Abstract
The invention discloses an insulating flame-retardant MPP power cable pipe and a preparation method thereof, the isotactic polypropylene has high crystallinity, the insulating flame-retardant MPP cable pipe obtained by preparation has the characteristics of high Vicat softening point, high modulus and low temperature brittleness due to the addition of the isotactic polypropylene, the wear resistance of the insulating flame-retardant MPP cable pipe obtained by preparation is good due to the addition of the ultrahigh molecular weight polyethylene, the Vicat softening point of the insulating flame-retardant MPP cable pipe obtained by preparation is 160-.
Description
Technical Field
The invention relates to the technical field of cable pipe production, in particular to an insulating flame-retardant 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 supporting and pulling pipe and an MPP traction pipe. Insulating nature and the heat resistance of current MPP cable pipe are all not good enough, need cut during the production of MPP cable pipe simultaneously, and current cutting equipment is inconvenient cuts stranded cable, even satisfy the equipment of stranded cable cutting and appear stranded cable pipe intertwine's the condition easily in the transportation process of cutting, the sweeps that produces when the cable pipe cutting simultaneously can adsorb whole global in the cable pipe, need carry out timely clearance global to the cable.
Disclosure of Invention
The invention aims to provide an insulating flame-retardant MPP power cable pipe and a preparation method thereof, and solves the following technical problems: (1) the crystallinity of isotactic polypropylene is high, the prepared insulating flame-retardant MPP cable pipe has the characteristics of high Vicat softening point, high modulus and low-temperature brittleness due to the addition of the isotactic polypropylene, the wear resistance of the prepared insulating flame-retardant MPP cable pipe is good due to the addition of the ultrahigh molecular weight polyethylene, and the Vicat softening point of the prepared insulating flame-retardant MPP cable pipe is 160-168 ℃ determined according to GB/T8802-2001; (2) the insulated flame-retardant MPP power cable pipe is put into a pipe conveying port of cutting equipment, the insulated flame-retardant MPP power cable pipe passes through the upper part of a conveying belt, a lifting cylinder is started, a piston rod of the lifting cylinder pushes a lifting shell downwards, the lifting shell drives a plurality of limiting rollers to descend, the limiting rollers press the insulated flame-retardant MPP power cable pipe on the conveying belt, two belt pulleys rotate in the same direction, the belt pulleys drive the conveying rollers to rotate, the two conveying rollers drive the conveying belt to rotate, the conveying belt conveys the insulated flame-retardant MPP power cable pipe to an arc-shaped groove on a cutting supporting plate, a lifting motor is started, an output shaft of the lifting motor drives a belt pulley to rotate, the belt pulley drives a belt pulley to rotate through a belt III, the belt pulley drives a second lead screw to rotate, the second lead screw drives a lifting arm to descend, the lifting arm drives a telescopic shaft to extend through a shaft, the driving wheel on the driving shell at the bottom of the spring rod is pressed on the insulating flame-retardant MPP power cable pipe, the output shaft of the motor is installed to drive the driving wheel to rotate, the driving wheel is matched with the conveying belt to convey the insulating flame-retardant MPP power cable pipe, through the structure arrangement, the cutting equipment can convey multiple cable pipes simultaneously, and meanwhile, the limiting rollers are matched with the conveying belt, so that the conveying of the cable pipes with different diameters can be met, and the condition that the multiple cable pipes are mutually wound during conveying is avoided; (3) when cutting, the lifting motor is started, the adjusting shell descends, the spring rods shrink, the cutting blade on the cutter holder cuts the insulated flame-retardant MPP power cable pipe, the driving motor is started, the driving motor output shaft drives the belt pulley six to rotate, the belt pulley six drives the belt pulley seven to rotate through the belt four, the belt pulley seven drives the adjusting shell to rotate by 90 degrees, the adjusting motor is started, the adjusting motor output shaft drives the third lead screw to rotate, the third lead screw drives the two spring rods to adjust the distance, the driving wheels on the two spring rods contact the insulated flame-retardant MPP power cable pipe, the motor output shaft is installed to drive the driving wheels to rotate, the driving wheels drive the insulated flame-retardant MPP power cable pipe to rotate, the negative pressure fan extracts dust on the surface of the insulated flame-retardant MPP power cable pipe into the scrap storage cavity through the scrap extraction holes to complete cutting of the insulated flame-, two belt pulleys drive three rotations of belt pulley through two belts, three belt pulleys drive first lead screw and rotate, first lead screw drives the side and moves the board side, can satisfy cutting and clearance to a plurality of insulating fire-retardant MPP power cable pipes, the relative angle of rotation regulation drive wheel through adjusting the shell and cable pipe, when drive wheel and cable pipe angle are mutually perpendicular, the drive wheel can cooperate and carry the cable pipe, when the drive wheel parallels with the cable pipe angle, the drive wheel can drive cable pipe self rotatory, two drive wheels that can spacing regulation, can drive the cable pipe rotation of different diameters, the drive wheel can simultaneously, thereby the sweeps that produces when the negative pressure fan in the cooperation cutting layer board cuts the cable pipe is collected.
The purpose of the invention can be realized by the following technical scheme:
an insulating flame-retardant MPP power cable pipe is prepared from the following raw materials in parts by weight: 50-95 parts of isotactic polypropylene resin, 4-12 parts of block copolymerization polypropylene, 2-8 parts of olefin block copolymerization elastomer OBC, 0.5-4 parts of insulating flame-retardant functional master batch and 8-28 parts of ultrahigh molecular weight polyethylene resin;
the insulated flame-retardant MPP power cable pipe is prepared by the following steps:
the method comprises the following steps: adding isotactic polypropylene resin, block copolymerization polypropylene, olefin block copolymerization elastomer OBC, insulating flame-retardant functional master batches and ultrahigh molecular weight polyethylene resin into a high-speed mixer, uniformly mixing to obtain modified resin;
step two: adding modified resin into a single-screw extruder, extruding to obtain an insulating flame-retardant MPP power cable pipe, putting the insulating flame-retardant MPP power cable pipe into a pipe conveying port of a cutting device, enabling the insulating flame-retardant MPP power cable pipe to pass above a conveying belt, starting a lifting cylinder, enabling a piston rod of the lifting cylinder to downwards push a lifting shell, enabling the lifting shell to drive a plurality of limiting rollers to descend, enabling the limiting rollers to press the insulating flame-retardant MPP power cable pipe on the conveying belt, enabling two belt pulleys to rotate in the same direction, driving the conveying rollers to rotate by the belt pulleys, driving the conveying belt to rotate by the two conveying rollers, conveying the insulating flame-retardant MPP power cable pipe into an arc-shaped groove on a cutting supporting plate by the conveying belt, starting a lifting motor, driving a belt pulley to rotate by an output shaft of the lifting motor, driving a belt pulley to rotate by a belt third, driving a belt pulley, the lifting arm drives the telescopic shaft to extend through the shaft sleeve, the telescopic shaft extends and drives the spring rods and the tool apron to descend, a driving wheel on a driving shell at the bottom of each spring rod presses on the insulated flame-retardant MPP power cable pipe, an output shaft of a motor is installed to drive the driving wheel to rotate, the driving wheel is matched with a conveying belt to convey the insulated flame-retardant MPP power cable pipe, a lifting motor is started during cutting, the adjusting shell descends, the spring rods contract, a cutting blade on the tool apron cuts the insulated flame-retardant MPP power cable pipe, the driving motor is started, an output shaft of the driving motor drives a belt pulley six to rotate, a belt pulley six drives a belt pulley seven to rotate through a belt four, the belt pulley seven drives the adjusting shell to rotate by 90 degrees, the adjusting motor is started, an output shaft of the adjusting motor drives a third screw to rotate, the third screw, installation motor output shaft drives the drive wheel and rotates, the drive wheel drives the rotation of insulating fire-retardant MPP power cable pipe, negative pressure fan extracts to storing up the bits intracavity with the dust on insulating fire-retardant MPP power cable pipe surface through taking out the bits hole, the completion is to the cutting of insulating fire-retardant MPP power cable pipe, it drives two rotations of belt pulley to move motor output shaft through the side, two belt pulleys drive three rotations of belt pulley through two belts, three first lead screws of belt pulley drive rotate, first lead screw drives the side and moves the board side, can satisfy cutting and clearance to a plurality of insulating fire-retardant MPP power cable pipes.
Further, the insulating flame-retardant functional master batch is prepared by the following steps: carrying out surface treatment on the nano red powder by using a surface synergist and a hyperdispersant in an atomizing and spraying manner, drying to obtain pretreated nano red powder for later use, weighing 30-55 parts by weight of block copolymerization polypropylene resin, 1-3 parts by weight of pretreated nano red powder, 1-3 parts by weight of nano yellow powder, 2-5 parts by weight of lubricant, 2-6 parts by weight of processing aid, 0.5-2 parts by weight of antioxidant, 1-4 parts by weight of light stabilizer, 3-8 parts by weight of molybdenum dioxide and 3-8 parts by weight of chromium dioxide, carrying out banburying, extrusion and granulation to obtain an insulating flame-retardant functional master batch, wherein the banburying process temperature is 140-165 ℃, the granulation temperature is 180-195 ℃, the lubricant is polyolefin oligomer, the processing aid is ethylene copolymer, the antioxidant is hindered phenol antioxidant, and the light stabilizer is benzotriazole ultraviolet absorbent, the hyper-dispersant is water-soluble polymer dispersant, and the surface synergist is titanate.
Further, the cutting equipment comprises a cutting chamber, a plurality of pipe conveying openings are formed in one side of the cutting chamber, a conveying belt is arranged in the cutting chamber, a lifting shell is arranged above the conveying belt, a plurality of limiting rollers are arranged in the lifting shell, a cutting supporting plate is arranged on one side of the conveying belt, a plurality of arc-shaped grooves are formed in the cutting supporting plate, a scrap storage cavity is formed in the cutting supporting plate, a negative pressure fan is arranged in the scrap storage cavity, a plurality of scrap extracting holes are arranged at the top of the scrap storage cavity and correspond to the arc-shaped grooves one by one, a supporting frame is arranged at the top of the cutting chamber, a side moving plate is slidably arranged on the supporting frame, an installation shell is arranged on the side moving plate, a lifting arm is slidably arranged on the side moving plate, a shaft sleeve is arranged on the lifting arm, and the shaft sleeve is arranged on the telescopic shaft, the telescopic shaft is installed the adjusting shell in the bottom, slidable mounting has two spring levers on the adjusting shell, adjusting shell installs the blade holder in the bottom, install cutting blade on the blade holder, the drive shell is installed to the spring lever bottom, rotate on the drive shell and install the drive wheel.
Furthermore, a plurality of pipe conveying openings are arranged on the same side of the cutting chamber at equal intervals, the conveying belt is in transmission connection with two conveying rollers, a side shell is mounted on the outer side wall of the cutting chamber, two first belt pulleys are arranged in the side shell in a rotating mode and are in transmission connection with each other through a belt, a conveying motor is mounted on the outer side wall of the side shell, an output shaft of the conveying motor is connected with the first belt pulleys, the two first belt pulleys are in one-to-one correspondence with the two conveying rollers, the conveying rollers are connected with the belt pulleys in a coaxial mode, a plurality of supporting rollers are arranged in the cutting chamber in an equal.
Furthermore, a lifting cylinder is installed at the top of the cutting chamber, a piston rod of the lifting cylinder is connected with a lifting shell, a plurality of limiting rollers are arranged in the lifting shell in an equidistant rotating mode, and a plurality of arc-shaped grooves correspond to a plurality of pipe conveying openings one to one.
Further, store up the bits chamber and take out the bits hole and be linked together, install the side on the support frame and move the motor, rotate on the support frame and install first lead screw, the side is moved motor output shaft tip and is installed belt pulley two, installs belt pulley three on the first lead screw, is connected through two transmissions of belt between belt pulley two and the belt pulley three, install elevator motor on the board is moved to the side, it rotates on the board and installs the second lead screw to move to the side, elevator motor output shaft tip installs belt pulley four, installs belt pulley five on the second lead screw, is connected through three transmissions of belt between belt pulley four and the belt pulley five, install driving motor on the installation shell, driving motor output shaft tip installs belt pulley six, install belt pulley seven on the telescopic shaft, be connected through four transmissions of belt between belt six and the belt pulley seven.
Further, the adjusting shell internal rotation is provided with the third lead screw, adjusting motor is installed to the adjusting shell lateral wall, adjusting motor output shaft third lead screw, third lead screw both ends flank of thread are the symmetry along the middle part and set up, two spring levers of third lead screw both ends threaded connection, and two spring levers set up respectively in the blade holder both sides, install the installation motor on the drive shell, installation motor output shaft drive wheel.
The invention has the beneficial effects that:
(1) according to the insulating flame-retardant MPP power cable pipe and the preparation method thereof, the crystallinity of isotactic polypropylene is high, the prepared insulating flame-retardant MPP cable pipe has the characteristics of high Vicat softening point, high modulus and low-temperature brittleness due to the addition of the isotactic polypropylene, the wear resistance of the prepared insulating flame-retardant MPP cable pipe is good due to the addition of the ultra-high molecular weight polyethylene, and the Vicat softening point of the prepared insulating flame-retardant MPP cable pipe is 160-168 ℃ determined according to GB/T8802-2001;
(2) the insulated flame-retardant MPP power cable pipe is put into a pipe conveying port of cutting equipment, the insulated flame-retardant MPP power cable pipe passes through the upper part of a conveying belt, a lifting cylinder is started, a piston rod of the lifting cylinder pushes a lifting shell downwards, the lifting shell drives a plurality of limiting rollers to descend, the limiting rollers press the insulated flame-retardant MPP power cable pipe on the conveying belt, two belt pulleys rotate in the same direction, the belt pulleys drive the conveying rollers to rotate, the two conveying rollers drive the conveying belt to rotate, the conveying belt conveys the insulated flame-retardant MPP power cable pipe to an arc-shaped groove on a cutting supporting plate, a lifting motor is started, an output shaft of the lifting motor drives a belt pulley to rotate, the belt pulley drives a belt pulley to rotate through a belt III, the belt pulley drives a second lead screw to rotate, the second lead screw drives a lifting arm to descend, the lifting arm drives a telescopic shaft to extend through a shaft, the driving wheel on the driving shell at the bottom of the spring rod is pressed on the insulating flame-retardant MPP power cable pipe, the output shaft of the motor is installed to drive the driving wheel to rotate, the driving wheel is matched with the conveying belt to convey the insulating flame-retardant MPP power cable pipe, through the structure arrangement, the cutting equipment can convey multiple cable pipes simultaneously, and meanwhile, the limiting rollers are matched with the conveying belt, so that the conveying of the cable pipes with different diameters can be met, and the condition that the multiple cable pipes are mutually wound during conveying is avoided;
(3) when cutting, the lifting motor is started, the adjusting shell descends, the spring rods shrink, the cutting blade on the cutter holder cuts the insulated flame-retardant MPP power cable pipe, the driving motor is started, the driving motor output shaft drives the belt pulley six to rotate, the belt pulley six drives the belt pulley seven to rotate through the belt four, the belt pulley seven drives the adjusting shell to rotate by 90 degrees, the adjusting motor is started, the adjusting motor output shaft drives the third lead screw to rotate, the third lead screw drives the two spring rods to adjust the distance, the driving wheels on the two spring rods contact the insulated flame-retardant MPP power cable pipe, the motor output shaft is installed to drive the driving wheels to rotate, the driving wheels drive the insulated flame-retardant MPP power cable pipe to rotate, the negative pressure fan extracts dust on the surface of the insulated flame-retardant MPP power cable pipe into the scrap storage cavity through the scrap extraction holes to complete cutting of the insulated flame-, two belt pulleys drive three rotations of belt pulley through two belts, three belt pulleys drive first lead screw and rotate, first lead screw drives the side and moves the board side, can satisfy cutting and clearance to a plurality of insulating fire-retardant MPP power cable pipes, the relative angle of rotation regulation drive wheel through adjusting the shell and cable pipe, when drive wheel and cable pipe angle are mutually perpendicular, the drive wheel can cooperate and carry the cable pipe, when the drive wheel parallels with the cable pipe angle, the drive wheel can drive cable pipe self rotatory, two drive wheels that can spacing regulation, can drive the cable pipe rotation of different diameters, the drive wheel can simultaneously, thereby the sweeps that produces when the negative pressure fan in the cooperation cutting layer board cuts the cable pipe is collected.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the construction of the cutting apparatus of the present invention;
FIG. 2 is an internal structural view of the cutting apparatus of the present invention;
FIG. 3 is a cross-sectional view of the cutting blade of the present invention;
FIG. 4 is an installation view of the conveyor belt of the present invention;
FIG. 5 is an installation view of the adjustment housing of the present invention;
FIG. 6 is a bottom view of the adjustment housing of the present invention;
fig. 7 is a side view of the spring rod of the present invention.
In the figure: 1. a cutting chamber; 2. a pipe delivery port; 3. a conveyor belt; 4. a conveying roller; 5. a support roller; 6. a side casing; 7. a conveying motor; 8. a lifting cylinder; 9. a lifting shell; 10. a limiting roller; 11. cutting the supporting plate; 12. an arc-shaped slot; 13. chip extraction holes; 14. a negative pressure fan; 15. a chip storage chamber; 16. a support frame; 17. a side shift motor; 18. a side shift plate; 19. mounting a shell; 20. a lifting arm; 21. a lifting motor; 22. a shaft sleeve; 23. a drive motor; 24. a telescopic shaft; 25. an adjustment housing; 26. adjusting the motor; 27. a spring lever; 28. a tool apron; 29. a drive case; 30. a drive wheel; 31. and (5) installing a motor.
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.
Please refer to FIGS. 1-7
An insulating flame-retardant MPP power cable pipe is prepared from the following raw materials in parts by weight: 50 parts of isotactic polypropylene resin, 4 parts of block copolymerization polypropylene, 2 parts of olefin block copolymerization elastomer OBC, 0.5 part of insulating flame-retardant functional master batch and 8 parts of ultrahigh molecular weight polyethylene resin;
the insulated flame-retardant MPP power cable pipe is prepared by the following steps:
the method comprises the following steps: adding isotactic polypropylene resin, block copolymerization polypropylene, olefin block copolymerization elastomer OBC, insulating flame-retardant functional master batches and ultrahigh molecular weight polyethylene resin into a high-speed mixer, uniformly mixing to obtain modified resin;
step two: adding modified resin into a single-screw extruder, extruding to obtain an insulating flame-retardant MPP power cable pipe, putting the insulating flame-retardant MPP power cable pipe into a pipe conveying port 2 of a cutting device, enabling the insulating flame-retardant MPP power cable pipe to pass above a conveying belt 3, starting a lifting cylinder 8, enabling a piston rod of the lifting cylinder 8 to downwards push a lifting shell 9, enabling the lifting shell 9 to drive a plurality of limiting rollers 10 to descend, enabling the insulating flame-retardant MPP power cable pipe to be pressed on the conveying belt 3 by the limiting rollers 10, enabling two belt pulleys to rotate in the same direction, enabling a first belt pulley to drive a conveying roller 4 to rotate, enabling the two conveying rollers 4 to drive the conveying belt 3 to rotate, enabling the conveying belt 3 to convey the insulating flame-retardant MPP power cable pipe into an arc-shaped groove 12 on a cutting supporting plate 11, starting a lifting motor 21, enabling an output shaft of the lifting motor 21 to drive a fourth belt pulley to rotate, the second lead screw drives the lifting arm 20 to descend, the lifting arm 20 drives the telescopic shaft 24 to extend through the shaft sleeve 22, the telescopic shaft 24 extends and drives the spring rod 27 and the tool apron 28 to descend, the driving wheel 30 on the driving shell 29 at the bottom of the spring rod 27 is pressed on the insulated flame-retardant MPP power cable pipe, the output shaft of the mounting motor 31 drives the driving wheel 30 to rotate, the driving wheel 30 is matched with the conveying belt 3 to convey the insulated flame-retardant MPP power cable pipe, the lifting motor 21 is started during cutting, the adjusting shell 25 descends, the spring rod 27 contracts, the cutting blade on the tool apron 28 cuts the insulated flame-retardant MPP power cable pipe, the driving motor 23 is started, the output shaft of the driving motor 23 drives the belt pulley six to rotate, the belt pulley six drives the belt pulley seven to rotate through the belt four, the belt pulley seven drives the adjusting shell 25 to rotate by 90 degrees, the adjusting motor 26 is started, the output shaft, the driving wheels 30 on the two spring rods 27 are in contact with the insulating flame-retardant MPP power cable pipe, the output shaft of the mounting motor 31 drives the driving wheels 30 to rotate, the driving wheels 30 drive the insulating flame-retardant MPP power cable pipe to rotate, the negative pressure fan 14 extracts dust on the surface of the insulating flame-retardant MPP power cable pipe into the chip storage cavity 15 through the chip extraction hole 13, and cutting of the insulating flame-retardant MPP power cable pipe is completed.
Specifically, the master batch with the insulating and flame-retardant functions is prepared by the following steps: the preparation method comprises the following steps of carrying out surface treatment on nano red powder in an atomizing and spraying mode by using a surface synergist and a hyper-dispersant, drying to obtain pretreated nano red powder, weighing 30 parts by weight of block copolymerization polypropylene resin, 1 part by weight of pretreated nano red powder, 1 part by weight of nano yellow powder, 2 parts by weight of a lubricant, 2 parts by weight of a processing aid, 0.5 part by weight of an antioxidant, 1 part by weight of a light stabilizer, 3 parts by weight of molybdenum dioxide and 3 parts by weight of chromium dioxide, carrying out banburying, extrusion and granulation to prepare an insulating and flame-retardant functional master batch, wherein the banburying process temperature is 140 ℃, the granulation temperature is 180 ℃, the lubricant is a polyolefin oligomer, the processing aid is an ethylene copolymer, the antioxidant is a hindered phenol antioxidant, the light stabilizer is a benzotriazole ultraviolet absorbent, the hyper-dispersant is a water-soluble polymer dispersant, and the surface synergist is titanate.
The vicat softening point of the insulated flame-retardant MPP power cable pipe of example 1 is 160 ℃.
Example 2
An insulating flame-retardant MPP power cable pipe is prepared from the following raw materials in parts by weight: 95 parts of isotactic polypropylene resin, 12 parts of block copolymerization polypropylene, 8 parts of olefin block copolymerization elastomer (OBC), 4 parts of insulating flame-retardant functional master batch and 28 parts of ultrahigh molecular weight polyethylene resin;
the rest of the procedure was the same as in example 1.
Specifically, the master batch with the insulating and flame-retardant functions is prepared by the following steps: carrying out surface treatment on nano red powder by using a surface synergist and a hyperdispersant in an atomizing and spraying manner, drying to obtain pretreated nano red powder for later use, weighing 55 parts by weight of block copolymerization polypropylene resin, 3 parts by weight of pretreated nano red powder, 3 parts by weight of nano yellow powder, 5 parts by weight of a lubricant, 6 parts by weight of a processing aid, 2 parts by weight of an antioxidant, 4 parts by weight of a light stabilizer, 8 parts by weight of molybdenum dioxide and 8 parts by weight of chromium dioxide, carrying out banburying, extrusion and granulation to obtain an insulating flame-retardant functional master batch, wherein the banburying process temperature is 165 ℃, the granulation temperature is 195 ℃, the lubricant is a polyolefin oligomer, the processing aid is an ethylene copolymer, the antioxidant is a hindered phenol antioxidant, the light stabilizer is a benzotriazole ultraviolet absorbent, the hyperdispersant is a water-soluble polymer dispersant, and the surface synergist is titanate.
The vicat softening point of the insulated flame-retardant MPP power cable pipe of example 2 is 168 ℃.
The cutting equipment comprises a cutting chamber 1, wherein a plurality of pipe conveying openings 2 are formed in one side of the cutting chamber 1, a conveying belt 3 is arranged in the cutting chamber 1, a lifting shell 9 is arranged above the conveying belt 3, a plurality of limiting rollers 10 are arranged in the lifting shell 9, a cutting supporting plate 11 is arranged on one side of the conveying belt 3, a plurality of arc-shaped grooves 12 are formed in the cutting supporting plate 11, a scrap storage cavity 15 is formed in the cutting supporting plate 11, a negative pressure fan 14 is arranged in the scrap storage cavity 15, a plurality of scrap extracting holes 13 are formed in the top of the scrap storage cavity 15, the plurality of scrap extracting holes 13 correspond to the plurality of arc-shaped grooves 12 one by one, the scrap extracting holes 13 are communicated with the arc-shaped grooves 12, a supporting frame 16 is arranged at the top of the cutting chamber 1, a side moving plate 18 is arranged on the supporting frame 16 in a sliding manner, an installation shell 19 is arranged on the side moving plate, adjusting shell 25 is installed to telescopic shaft 24 bottom, and slidable mounting has two spring levers 27 on adjusting shell 25, and blade holder 28 is installed to adjusting shell 25 bottom, installs cutting blade on the blade holder 28, and drive shell 29 is installed to spring lever 27 bottom, and drive shell 29 is last to rotate and to install drive wheel 30.
A plurality of tubular product delivery port 2 equidistant sets up in 1 homonymy of cutting chamber, conveyor belt 3 is connected through the transmission of two conveying rollers 4, side shell 6 is installed to 1 lateral wall of cutting chamber, the internal rotation of side shell 6 is provided with two belt pulleys one, through belt transmission connection between two belt pulleys one, conveyor motor 7 is installed to 6 lateral walls of side shell, conveyor motor 7 output shaft belt pulley one, two belt pulleys one and two conveying roller 4 one-to-one, conveying roller 4 is connected with the belt pulley is coaxial, equidistant rotation is provided with a plurality of backing rolls 5 in the cutting chamber 1, backing roll 5 contacts with 3 internal surfaces of conveyor belt.
A lifting cylinder 8 is installed at the top of the cutting chamber 1, a piston rod of the lifting cylinder 8 is connected with a lifting shell 9, a plurality of limiting rollers 10 are arranged in the lifting shell 9 in an equidistant rotating mode, and a plurality of arc-shaped grooves 12 correspond to a plurality of pipe conveying openings 2 one to one.
The scrap storage cavity 15 is communicated with the scrap pumping hole 13, the support frame 16 is provided with a side shifting motor 17, the support frame 16 is provided with a first lead screw in a rotating mode, the end portion of an output shaft of the side shifting motor 17 is provided with a second belt pulley, the first lead screw is provided with a third belt pulley, the second belt pulley is in transmission connection with the third belt pulley through the second belt, the side shifting plate 18 is provided with a lifting motor 21, the side shifting plate 18 is provided with a second lead screw in a rotating mode, the end portion of the output shaft of the lifting motor 21 is provided with a fourth belt pulley, the second lead screw is provided with a fifth belt pulley, the fourth belt pulley is in transmission connection with the fifth belt pulley through the third belt, the mounting shell 19 is provided with a driving motor 23, the end portion of the output shaft of the driving motor 23 is provided.
The internal rotation of adjusting shell 25 is provided with the third lead screw, and adjusting motor 26 is installed to adjusting shell 25 lateral wall, and adjusting motor 26 output shaft third lead screw, and third lead screw both ends flank is the symmetry along the middle part and sets up, and two spring arms 27 of third lead screw both ends threaded connection, two spring arms 27 set up respectively in blade holder 28 both sides, install installation motor 31 on the drive shell 29, and installation motor 31 output shaft is connected drive wheel 30.
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 (8)
1. The insulated flame-retardant MPP power cable pipe is characterized by being prepared from the following raw materials in parts by weight: 50-95 parts of isotactic polypropylene resin, 4-12 parts of block copolymerization polypropylene, 2-8 parts of olefin block copolymerization elastomer OBC, 0.5-4 parts of insulating flame-retardant functional master batch and 8-28 parts of ultrahigh molecular weight polyethylene resin;
the insulated flame-retardant MPP power cable pipe is prepared by the following steps:
the method comprises the following steps: adding isotactic polypropylene resin, block copolymerization polypropylene, olefin block copolymerization elastomer OBC, insulating flame-retardant functional master batches and ultrahigh molecular weight polyethylene resin into a high-speed mixer, uniformly mixing to obtain modified resin;
step two: adding modified resin into a single-screw extruder, extruding to obtain an insulating flame-retardant MPP power cable pipe, putting the insulating flame-retardant MPP power cable pipe into a pipe conveying port (2) of a cutting device, enabling the insulating flame-retardant MPP power cable pipe to pass above a conveying belt (3), starting a lifting cylinder (8), enabling a piston rod of the lifting cylinder (8) to downwards push a lifting shell (9), enabling the lifting shell (9) to drive a plurality of limiting rollers (10) to descend, enabling the insulating flame-retardant MPP power cable pipe to be pressed on the conveying belt (3) by the limiting rollers (10), enabling two belt pulleys to rotate in the same direction, enabling the first belt pulley to drive the conveying rollers (4) to rotate, enabling the two conveying rollers (4) to drive the conveying belt (3) to rotate, enabling the conveying belt (3) to convey the insulating flame-retardant MPP power cable pipe into an arc-shaped groove (12) on the cutting supporting plate (11), starting a lifting motor (21), and enabling the, the belt pulley four-way joint drives a belt pulley five to rotate through a belt three, the belt pulley five drives a second lead screw to rotate, the second lead screw drives a lifting arm (20) to descend, the lifting arm (20) drives a telescopic shaft (24) to extend through a shaft sleeve (22), the telescopic shaft (24) extends and drives a spring rod (27) and a tool apron (28) to descend, a driving wheel (30) on a driving shell (29) at the bottom of the spring rod (27) is pressed on an insulated flame-retardant MPP power cable pipe, an output shaft of a mounting motor (31) drives the driving wheel (30) to rotate, the driving wheel (30) is matched with a conveying belt (3) to convey the insulated flame-retardant MPP power cable pipe, the lifting motor (21) is started during cutting, a regulating shell (25) descends, the spring rod (27) contracts, a cutting blade on the tool apron (28) cuts the insulated flame-retardant MPP power cable pipe, the driving motor (23) is started, the belt pulley is driven to rotate by a belt IV, the belt pulley seventh drives the adjusting shell (25) to rotate by 90 degrees, the adjusting motor (26) is started, the output shaft of the adjusting motor (26) drives the third lead screw to rotate, the third lead screw drives the two spring rods (27) to adjust the distance, the driving wheels (30) on the two spring rods (27) are in contact with the insulating flame-retardant MPP power cable pipe, the output shaft of the mounting motor (31) drives the driving wheels (30) to rotate, the driving wheels (30) drive the insulating flame-retardant MPP power cable pipe to rotate, the negative pressure fan (14) extracts dust on the surface of the insulating flame-retardant MPP power cable pipe into the scrap storage cavity (15) through the scrap extracting holes (13), and cutting of the insulating flame-retardant MPP power cable pipe is.
2. The insulated flame-retardant MPP power cable pipe according to claim 1, wherein the insulated flame-retardant master batch is prepared by the following steps: carrying out surface treatment on the nano red powder by using a surface synergist and a hyperdispersant in an atomizing and spraying manner, drying to obtain pretreated nano red powder for later use, weighing 30-55 parts by weight of block copolymerization polypropylene resin, 1-3 parts by weight of the pretreated nano red powder, 1-3 parts by weight of nano yellow powder, 2-5 parts by weight of a lubricant, 2-6 parts by weight of a processing aid, 0.5-2 parts by weight of an antioxidant, 1-4 parts by weight of a light stabilizer, 3-8 parts by weight of molybdenum dioxide and 3-8 parts by weight of chromium dioxide, carrying out banburying, extrusion and granulation to obtain an insulating flame-retardant functional master batch, wherein the banburying process temperature is 140-reservoir temperature, the granulation temperature is 180-reservoir temperature 195 ℃, the lubricant is a polyolefin oligomer, the processing aid is an ethylene copolymer, the antioxidant is a hindered phenol antioxidant, and the light stabilizer is a benzotriazole ultraviolet absorbent, the hyper-dispersant is water-soluble polymer dispersant, and the surface synergist is titanate.
3. The preparation method of the insulated flame-retardant MPP power cable pipe is characterized by comprising the following steps of:
the method comprises the following steps: adding isotactic polypropylene resin, block copolymerization polypropylene, olefin block copolymerization elastomer OBC, insulating flame-retardant functional master batches and ultrahigh molecular weight polyethylene resin into a high-speed mixer, uniformly mixing to obtain modified resin;
step two: adding modified resin into a single-screw extruder, extruding to obtain an insulating flame-retardant MPP power cable pipe, putting the insulating flame-retardant MPP power cable pipe into a pipe conveying port (2) of a cutting device, enabling the insulating flame-retardant MPP power cable pipe to pass above a conveying belt (3), starting a lifting cylinder (8), enabling a piston rod of the lifting cylinder (8) to downwards push a lifting shell (9), enabling the lifting shell (9) to drive a plurality of limiting rollers (10) to descend, enabling the insulating flame-retardant MPP power cable pipe to be pressed on the conveying belt (3) by the limiting rollers (10), enabling two belt pulleys to rotate in the same direction, enabling the first belt pulley to drive the conveying rollers (4) to rotate, enabling the two conveying rollers (4) to drive the conveying belt (3) to rotate, enabling the conveying belt (3) to convey the insulating flame-retardant MPP power cable pipe into an arc-shaped groove (12) on the cutting supporting plate (11), starting a lifting motor (21), and enabling the, the belt pulley four-way joint drives a belt pulley five to rotate through a belt three, the belt pulley five drives a second lead screw to rotate, the second lead screw drives a lifting arm (20) to descend, the lifting arm (20) drives a telescopic shaft (24) to extend through a shaft sleeve (22), the telescopic shaft (24) extends and drives a spring rod (27) and a tool apron (28) to descend, a driving wheel (30) on a driving shell (29) at the bottom of the spring rod (27) is pressed on an insulated flame-retardant MPP power cable pipe, an output shaft of a mounting motor (31) drives the driving wheel (30) to rotate, the driving wheel (30) is matched with a conveying belt (3) to convey the insulated flame-retardant MPP power cable pipe, the lifting motor (21) is started during cutting, a regulating shell (25) descends, the spring rod (27) contracts, a cutting blade on the tool apron (28) cuts the insulated flame-retardant MPP power cable pipe, the driving motor (23) is started, the belt pulley is driven to rotate by a belt IV, the belt pulley seventh drives the adjusting shell (25) to rotate by 90 degrees, the adjusting motor (26) is started, the output shaft of the adjusting motor (26) drives the third lead screw to rotate, the third lead screw drives the two spring rods (27) to adjust the distance, the driving wheels (30) on the two spring rods (27) are in contact with the insulating flame-retardant MPP power cable pipe, the output shaft of the mounting motor (31) drives the driving wheels (30) to rotate, the driving wheels (30) drive the insulating flame-retardant MPP power cable pipe to rotate, the negative pressure fan (14) extracts dust on the surface of the insulating flame-retardant MPP power cable pipe into the scrap storage cavity (15) through the scrap extracting holes (13), and cutting of the insulating flame-retardant MPP power cable pipe is.
4. The preparation method of the MPP power cable tube according to claim 3, wherein the cutting device comprises a cutting chamber (1), a plurality of tube material conveying openings (2) are formed in one side of the cutting chamber (1), a conveying belt (3) is arranged in the cutting chamber (1), a lifting shell (9) is arranged above the conveying belt (3), a plurality of limiting rollers (10) are arranged in the lifting shell (9), a cutting supporting plate (11) is arranged on one side of the conveying belt (3), a plurality of arc-shaped grooves (12) are formed in the cutting supporting plate (11), a scrap storage cavity (15) is formed in the cutting supporting plate (11), a negative pressure fan (14) is arranged in the scrap storage cavity (15), a plurality of scrap extracting holes (13) are formed in the top of the scrap storage cavity (15), and the plurality of scrap extracting holes (13) correspond to the arc-shaped grooves (12) one by one, the chip-removing hole (13) is communicated with the arc-shaped groove (12), a support frame (16) is installed at the top of the cutting chamber (1), a side shifting plate (18) is installed on the support frame (16) in a sliding mode, an installation shell (19) is installed on the side shifting plate (18), a lifting arm (20) is installed on the side shifting plate (18) in a sliding mode, an axle sleeve (22) is installed on the lifting arm (20), the axle sleeve (22) is installed on a telescopic shaft (24), an adjusting shell (25) is installed at the bottom of the telescopic shaft (24), two spring rods (27) are installed on the adjusting shell (25) in a sliding mode, a cutter holder (28) is installed at the bottom of the adjusting shell (25), a cutting blade is installed on the cutter holder (28), a driving shell (29) is installed at the bottom of the spring rods (27), and a driving wheel (30) is installed on the driving.
5. The method for manufacturing an insulated flame retardant MPP power cable tube according to claim 4, it is characterized in that a plurality of pipe conveying ports (2) are arranged at the same side of the cutting chamber (1) at equal intervals, the conveying belt (3) is in transmission connection through two conveying rollers (4), a side shell (6) is installed on the outer side wall of the cutting chamber (1), two belt pulleys I are rotatably arranged in the side shell (6), the two belt pulleys I are in transmission connection through a belt, the outer side wall of the side shell (6) is provided with a conveying motor (7), the output shaft of the conveying motor (7) is connected with one of the first belt pulleys, the two first belt pulleys are in one-to-one correspondence with the two conveying rollers (4), the conveying roller (4) is connected with a belt pulley in a coaxial mode, a plurality of supporting rollers (5) are arranged in the cutting chamber (1) in a rotating mode at equal intervals, and the supporting rollers (5) are in contact with the inner surface of the conveying belt (3).
6. The method for preparing the insulated flame-retardant MPP power cable pipe according to claim 4, wherein a lifting cylinder (8) is installed at the top of the cutting chamber (1), a piston rod of the lifting cylinder (8) is connected with a lifting shell (9), a plurality of limiting rollers (10) are rotatably arranged in the lifting shell (9) at equal intervals, and a plurality of arc-shaped grooves (12) are in one-to-one correspondence with a plurality of pipe conveying ports (2).
7. The method for preparing the insulated flame-retardant MPP power cable tube according to claim 4, wherein the scrap storage cavity (15) is communicated with the scrap extraction hole (13), the support frame (16) is provided with a side shift motor (17), the support frame (16) is provided with a first lead screw in a rotating manner, the end part of an output shaft of the side shift motor (17) is provided with a second belt pulley, the first lead screw is provided with a third belt pulley, the second belt pulley is in transmission connection with the third belt pulley through a second belt, the side shift plate (18) is provided with a lifting motor (21), the side shift plate (18) is provided with a second lead screw in a rotating manner, the end part of the output shaft of the lifting motor (21) is provided with a fourth belt pulley, the second lead screw is provided with a fifth belt pulley, the fourth belt pulley is in transmission connection with the fifth belt pulley through a third belt, the mounting shell (19) is provided with a driving motor, six belt pulleys are installed at the end part of an output shaft of the driving motor (23), seven belt pulleys are installed on the telescopic shaft (24), and the six belt pulleys and the seven belt pulleys are in transmission connection through four belts.
8. The method for preparing the insulated flame-retardant MPP power cable tube according to claim 4, wherein a third lead screw is rotatably arranged in the adjusting shell (25), an adjusting motor (26) is installed on the outer side wall of the adjusting shell (25), an output shaft of the adjusting motor (26) is connected with the third lead screw, thread surfaces at two ends of the third lead screw are symmetrically arranged along the middle part, two ends of the third lead screw are in threaded connection with two spring rods (27), the two spring rods (27) are respectively arranged at two sides of the tool apron (28), an installation motor (31) is installed on the driving shell (29), and an output shaft of the installation motor (31) is connected with a driving wheel (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521137.3A CN112810098A (en) | 2020-12-21 | 2020-12-21 | Insulation flame-retardant MPP power cable pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011521137.3A CN112810098A (en) | 2020-12-21 | 2020-12-21 | Insulation flame-retardant MPP power cable pipe and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112810098A true CN112810098A (en) | 2021-05-18 |
Family
ID=75853603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011521137.3A Pending CN112810098A (en) | 2020-12-21 | 2020-12-21 | Insulation flame-retardant MPP power cable pipe and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112810098A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307087A (en) * | 2021-05-28 | 2021-08-27 | 安徽杰蓝特新材料有限公司 | High-flame-retardancy MPP power cable pipe and processing technology thereof |
| CN113354896A (en) * | 2021-05-26 | 2021-09-07 | 安徽杰蓝特新材料有限公司 | Anti-static MPP power cable pipe and preparation method thereof |
| CN113354897A (en) * | 2021-05-31 | 2021-09-07 | 安徽杰蓝特新材料有限公司 | Flame-retardant anti-aging power cable pipe and preparation method thereof |
| CN113458895A (en) * | 2021-07-06 | 2021-10-01 | 安徽杰蓝特新材料有限公司 | High-temperature-resistant insulating power cable pipe |
| CN113527810A (en) * | 2021-07-28 | 2021-10-22 | 安徽杰蓝特新材料有限公司 | Corrosion-resistant flame-retardant MPP power cable pipe and preparation method thereof |
| CN113549266A (en) * | 2021-07-06 | 2021-10-26 | 安徽杰蓝特新材料有限公司 | Wear-resistant gas pipe based on modified PE and manufacturing method thereof |
| CN113583340A (en) * | 2021-07-28 | 2021-11-02 | 安徽杰蓝特新材料有限公司 | High-strength insulating MPP power cable pipe and preparation method thereof |
| CN114927277A (en) * | 2022-06-07 | 2022-08-19 | 新亚特电缆股份有限公司 | Deepwater degaussing cable and processing device thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61133262A (en) * | 1984-12-04 | 1986-06-20 | Hitachi Chem Co Ltd | Flame-retardant polypropylene composition |
| JPH08306242A (en) * | 1995-05-01 | 1996-11-22 | Fujikura Ltd | Flame retardant insulated cable |
| CN103724810A (en) * | 2013-12-31 | 2014-04-16 | 广东三凌塑料管材有限公司 | Polypropylene cable protective sleeve |
| CN111128471A (en) * | 2019-11-30 | 2020-05-08 | 安徽华津电缆集团有限公司 | Cutting device is used in processing of tensile fire-retardant type power cable |
| CN111659827A (en) * | 2020-06-15 | 2020-09-15 | 山东聚辰电缆有限公司 | Power cable cutting device |
| CN112030595A (en) * | 2020-09-09 | 2020-12-04 | 界首市鑫华装璜彩印有限公司 | Environment-friendly three-dimensional wear-resistant packaging paper and production process thereof |
-
2020
- 2020-12-21 CN CN202011521137.3A patent/CN112810098A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61133262A (en) * | 1984-12-04 | 1986-06-20 | Hitachi Chem Co Ltd | Flame-retardant polypropylene composition |
| JPH08306242A (en) * | 1995-05-01 | 1996-11-22 | Fujikura Ltd | Flame retardant insulated cable |
| CN103724810A (en) * | 2013-12-31 | 2014-04-16 | 广东三凌塑料管材有限公司 | Polypropylene cable protective sleeve |
| CN111128471A (en) * | 2019-11-30 | 2020-05-08 | 安徽华津电缆集团有限公司 | Cutting device is used in processing of tensile fire-retardant type power cable |
| CN111659827A (en) * | 2020-06-15 | 2020-09-15 | 山东聚辰电缆有限公司 | Power cable cutting device |
| CN112030595A (en) * | 2020-09-09 | 2020-12-04 | 界首市鑫华装璜彩印有限公司 | Environment-friendly three-dimensional wear-resistant packaging paper and production process thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113354896A (en) * | 2021-05-26 | 2021-09-07 | 安徽杰蓝特新材料有限公司 | Anti-static MPP power cable pipe and preparation method thereof |
| CN113354896B (en) * | 2021-05-26 | 2022-04-12 | 安徽杰蓝特新材料有限公司 | Anti-static MPP power cable pipe and preparation method thereof |
| CN113307087A (en) * | 2021-05-28 | 2021-08-27 | 安徽杰蓝特新材料有限公司 | High-flame-retardancy MPP power cable pipe and processing technology thereof |
| CN113354897A (en) * | 2021-05-31 | 2021-09-07 | 安徽杰蓝特新材料有限公司 | Flame-retardant anti-aging power cable pipe and preparation method thereof |
| CN113458895A (en) * | 2021-07-06 | 2021-10-01 | 安徽杰蓝特新材料有限公司 | High-temperature-resistant insulating power cable pipe |
| CN113549266A (en) * | 2021-07-06 | 2021-10-26 | 安徽杰蓝特新材料有限公司 | Wear-resistant gas pipe based on modified PE and manufacturing method thereof |
| CN113527810A (en) * | 2021-07-28 | 2021-10-22 | 安徽杰蓝特新材料有限公司 | Corrosion-resistant flame-retardant MPP power cable pipe and preparation method thereof |
| CN113583340A (en) * | 2021-07-28 | 2021-11-02 | 安徽杰蓝特新材料有限公司 | High-strength insulating MPP power cable pipe and preparation method thereof |
| CN114927277A (en) * | 2022-06-07 | 2022-08-19 | 新亚特电缆股份有限公司 | Deepwater degaussing cable and processing device thereof |
| CN114927277B (en) * | 2022-06-07 | 2024-05-07 | 新亚特电缆股份有限公司 | Processing device for deepwater demagnetizing cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112810098A (en) | Insulation flame-retardant MPP power cable pipe and preparation method thereof | |
| CN112625355B (en) | Heat-resistant insulating MPP cable pipe and preparation method thereof | |
| CN102504436A (en) | Flame-retardant cable filler and preparation method thereof | |
| CN110142890B (en) | Efficient granulator for preparing high polymer materials | |
| CN113174099B (en) | Processing-free high-speed extrusion silane crosslinked polyethylene insulating material and preparation method thereof | |
| CN102443229B (en) | Polyvinyl chloride cable filler and preparation method thereof | |
| CN104816350B (en) | Timber blank cutter | |
| CN107097399A (en) | One kind carrier band fully automatic forming machine | |
| CN217916638U (en) | Self-adjusting eccentric mechanism of extruder | |
| CN207841431U (en) | A kind of rubber ring quick shearing device | |
| CN112048142A (en) | Wear-resistant high-barrier CPVC cable protection pipe and preparation method thereof | |
| CN220316835U (en) | Polyimide carbon-based film cutting device | |
| CN114597000A (en) | Composite high-flame-retardant cable and preparation process thereof | |
| CN113696444A (en) | Flame-retardant double-wall corrugated pipe and processing technology thereof | |
| CN109822853B (en) | HDPE feed pipe processing equipment | |
| CN207888762U (en) | A kind of thermal insulation board cutting machine | |
| CN113458895A (en) | High-temperature-resistant insulating power cable pipe | |
| CN112521885A (en) | Semi-conductive self-adhesive tape for high-follow-shape communication cable | |
| CN112123727A (en) | Non-excavation type high-impact MPP power cable protection pipe and preparation method thereof | |
| CN217168644U (en) | Composite material forming and cutting equipment | |
| CN219407781U (en) | Irradiation crosslinking low smoke zero halogen insulating material storage box | |
| CN220906763U (en) | Cable conveying device | |
| CN117549527B (en) | High-radiation-resistant heat-shrinkable tube for nuclear power station and preparation method thereof | |
| CN215881731U (en) | Cutting device is used in production of graphite alkene heating film | |
| CN219325301U (en) | Cutting and discharging mechanism for extrusion molding heat insulation plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210518 |