CN111995829A - Outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve and preparation method thereof - Google Patents
Outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve and preparation method thereof Download PDFInfo
- Publication number
- CN111995829A CN111995829A CN202010957805.0A CN202010957805A CN111995829A CN 111995829 A CN111995829 A CN 111995829A CN 202010957805 A CN202010957805 A CN 202010957805A CN 111995829 A CN111995829 A CN 111995829A
- Authority
- CN
- China
- Prior art keywords
- parts
- gear
- tube
- seat
- motor
- 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/007—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for end faces of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/20—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve and a preparation method thereof, wherein the protective sleeve is prepared from the following raw materials in parts by weight: 25-30 parts of polyvinyl chloride, 13-15 parts of polytetrafluoroethylene powder, 5-7 parts of bentonite, 6-9 parts of graphene, 5-6 parts of octyl triethoxysilane, 4-7 parts of stearic acid, 4-8 parts of zinc oxide, 3-7 parts of sodium alginate, 8-9 parts of polypropylene short fiber, 6-7 parts of rock wool fiber, 4-6 parts of wood powder, 3-8 parts of hexa phenoxy cyclotriphosphazene, 5-8 parts of gum arabic and 7-9 parts of white carbon black; the sheath tube has high strength and good flame retardant property, and the brush roll and the polishing brush are used for polishing the tube head of the sheath tube blank, so that the prepared tube head of the sheath tube can be ensured to be flat and smooth, the subsequent thread processing of the sheath tube and the butt joint work between the sheath tubes are facilitated, the working efficiency is high, the sheath tube blank is kept stable during polishing, and the polishing effect is good.
Description
Technical Field
The invention relates to a protective sleeve, in particular to an outdoor high-strength flame-retardant PVC protective sleeve and a preparation method thereof.
Background
With the gradual acceleration of the urbanization process, urban planning tends to be more modern. In the urban construction process, the cable is buried to become the lowest construction requirement. Meanwhile, various cables erected in the air also need to be put into the ground in the urban reconstruction process. The cable goes into the ground and can adopt non-excavation technique to construct to the past, and this kind of construction method has not influenced the traffic, little to stratum structure destruction, advantage such as the cycle is short, is applicable to simultaneously, adopts non-excavation construction method, and is high to the requirement of cable, has to show: the cable needs to have high strength, good rigidity and toughness and the like, and in addition, the cable also needs to have the characteristic of high flame retardance due to the characteristics of the cable so as to prevent fire disasters caused by short circuit and the like and cause safety accidents; traditional protecting pipe intensity is low, and fire behaviour is poor, and life is shorter, and traditional protecting pipe tube head is coarse, and the burr is more, the screw thread processing of the protecting pipe of being not convenient for and the butt joint work between the protecting pipe, and work efficiency is low.
Disclosure of Invention
The invention aims to provide an outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve and a preparation method thereof, wherein polytetrafluoroethylene powder, graphene, polypropylene short fibers and rock wool fibers are added into preparation raw materials of the protective sleeve, so that the strength of the protective sleeve is effectively improved, zinc oxide is added to shield ultraviolet rays, so that the service life of the protective sleeve is ensured, hexaphenoxycyclotriphosphazene is added to improve the flame-retardant property of the protective sleeve and ensure the mechanical strength of the protective sleeve, the tensile strength and the elongation at break of the protective sleeve are tested according to the GB/T1040.1-2006 standard, the oxygen index of the protective sleeve is tested according to the GB/T2406-1993 standard, the flame-retardant grade of the protective sleeve is tested according to the GB12666.5 standard, the tensile strength of the protective sleeve is 36-38MPa, the elongation at break is 905 percent, the oxygen index is 39-40%, the flame retardant grade is A grade, the outdoor high-strength flame-retardant PVC protective sleeve has high strength and good flame retardant property, and the technical problems of low strength, poor flame retardant property and short service life of the traditional protective sleeve are solved;
the invention relates to a device for polishing a pipe head of a sheathing pipe blank, which comprises a lifting motor, a bracing wire, a fixing ring, a pipe inlet seat, a mounting seat, a gear II, a gear ring II, a clamping motor, a rotating head, a brush roll, a polishing brush, a lifting rope, a fixing ring, a lifting motor, a lifting plate, a lifting rope, the manufacturing method can ensure that the manufactured protecting pipe head is smooth and flat, so that the follow-up thread processing of the protecting pipe and the butt joint work between the protecting pipes are facilitated, and the working efficiency is improved.
The purpose of the invention can be realized by the following technical scheme:
the outdoor high-strength flame-retardant PVC protective sleeve is prepared from the following raw materials in parts by weight:
25-30 parts of polyvinyl chloride, 13-15 parts of polytetrafluoroethylene powder, 5-7 parts of bentonite, 6-9 parts of graphene, 5-6 parts of octyl triethoxysilane, 4-7 parts of stearic acid, 4-8 parts of zinc oxide, 3-7 parts of sodium alginate, 8-9 parts of polypropylene short fiber, 6-7 parts of rock wool fiber, 4-6 parts of wood powder, 3-8 parts of hexa phenoxy cyclotriphosphazene, 5-8 parts of gum arabic and 7-9 parts of white carbon black.
A preparation method of an outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve specifically comprises the following steps:
step one, adding polyvinyl chloride, polytetrafluoroethylene powder, bentonite, graphene, octyltriethoxysilane, stearic acid, zinc oxide, sodium alginate, polypropylene short fiber, rock wool fiber, wood powder and hexaphenoxycyclotriphosphazene into a reaction kettle, stirring for 20-30min at the speed of 500-;
adding the mixed materials into a double-screw extruder for blending extrusion, then granulating to obtain granules, adding the granules into a basic forming machine for forming, sizing, drawing and cutting to obtain a sheath tube blank;
step three, starting a lifting motor of the tube head polishing device, driving a threaded rod to rotate by the lifting motor, driving a lifting plate to lift by the threaded rod, driving a tube inlet seat and a mounting seat to lift by the lifting plate through a pull rope and a fixing ring, adjusting the heights of the tube inlet seat and the mounting seat to align one end of a tube inlet seat mounting hole with one end of a sheathing tube blank, inserting the sheathing tube blank into the tube inlet seat, and enabling the sheathing tube blank to sequentially pass through the tube inlet seat and a clamping seat, wherein one end of the sheathing tube blank is positioned between a brush roll and a polishing brush, starting a clamping motor, driving a gear II to rotate by the clamping motor, driving a gear II meshed with the gear II to rotate by the gear II, driving three clamping blocks in threaded fit with the gear II to radially move along the clamping seat, clamping the three clamping blocks to clamp the sheathing tube blank, starting the polishing motor, and driving a rotating head to rotate, and the brush roll and the polishing brush are driven to rotate, and the tube head of the green body of the sheath tube is polished through the brush roll and the polishing brush to obtain the outdoor high-strength flame-retardant PVC sheath tube.
Further, the tube head polishing device comprises a support frame, wherein a lifting plate is movably mounted on the support frame along the vertical direction, a lifting motor is fixedly mounted at the top of the support frame, a threaded rod is rotatably mounted on the support frame, the output shaft end of the lifting motor is fixedly connected with the top end of the threaded rod, the threaded rod is in threaded connection with the lifting plate, pull ropes are fixedly connected to two ends of the lifting plate, a fixing ring is fixed to one end of each of the two pull ropes, the two fixing rings are respectively sleeved on the tube inlet tube seat and the mounting seat, and mounting holes penetrating through the end faces of the two ends of the tube inlet tube seat are formed in the tube inlet;
the inner wall of one side of the mounting seat is rotatably provided with a rotating head, one end of the rotating head is fixedly provided with a brush roll and a fixed ring plate, the inner circumferential surface of the fixed ring plate is fixedly provided with a polishing brush, and the inner wall of one side of the mounting seat is fixedly provided with a polishing motor for driving the rotating head to rotate;
the utility model discloses a gear clamping device for a motor vehicle, including mount pad, gear ring two and gear ring two mesh, the inboard fixed mounting of mount pad has the grip slipper, fixed mounting has the centre gripping motor on the grip slipper, the output shaft fixed mounting of centre gripping motor has gear wheel two, rotate on the grip slipper and install gear ring two, the screw thread has been seted up to one side of gear ring two, gear wheel two and the meshing of gear ring two, radially slidable mounting has three grip block on the grip slipper, gear.
Furthermore, a first gear is fixedly installed at an output shaft end of the polishing motor, a first gear ring is sleeved on the rotating head, and the first gear is meshed with the first gear ring.
Further, the brush roll is fixedly installed in the middle of one end face of the rotating head, and the fixed ring plate is fixedly installed on the edge of the outer peripheral face of one end face of the rotating head.
Furthermore, a fixed plate is horizontally arranged below the lifting plate, the fixed plate is fixedly connected with the support frame through four guide rods, and the lifting plate is respectively in sliding connection with the four guide rods.
Furthermore, the three clamping blocks are distributed on the clamping seat in an equal radian circumferential array.
Further, the working method of the pipe head grinding device specifically comprises the following steps:
starting a lifting motor, wherein the lifting motor drives a threaded rod to rotate, the threaded rod drives a lifting plate to lift, the lifting plate drives an inlet pipe seat and a mounting seat to lift through a pull rope and a fixed ring, the heights of the inlet pipe seat and the mounting seat are adjusted, one end of an inlet pipe seat mounting hole is aligned with one end of a protective sleeve blank, the protective sleeve blank is inserted into the inlet pipe seat, the protective sleeve blank sequentially penetrates through the inlet pipe seat and a clamping seat, one end of the protective sleeve blank is positioned between a brush roller and a polishing brush, the clamping motor is started, the clamping motor drives a gear II to rotate, the gear II drives a gear ring II meshed with the gear II to rotate, the gear ring II drives three clamping blocks in threaded fit with the gear II to radially move along the clamping seat, the three clamping blocks clamp the protective sleeve blank, the polishing motor is started, the polishing motor drives a rotating head to rotate through the gear I and the gear ring, and polishing the tube head of the sheath tube blank by using a brush roll and a polishing brush.
The invention has the beneficial effects that:
according to the invention, polytetrafluoroethylene powder, graphene, polypropylene short fibers and rock wool fibers are added into the raw materials for preparing the protective sleeve, so that the strength of the protective sleeve is effectively improved, the zinc oxide is added, ultraviolet rays can be shielded, the service life of the protective sleeve is ensured, the flame retardant property of the protective sleeve is improved, the mechanical strength of the protective sleeve is ensured, the tensile strength and the elongation at break of the protective sleeve are tested according to the GB/T1040.1-2006 standard, the oxygen index of the protective sleeve is tested according to the GB/T2406-1993 standard, the flame retardant grade of the protective sleeve is tested according to the GB12666.5 standard, the tensile strength of the protective sleeve is 36-38MPa, the elongation at break is 895-905%, the oxygen index is 39-40%, the flame retardant grade is A grade, and the strength of the outdoor high-strength flame retardant PVC protective sleeve is high, the flame retardant property is good;
the invention relates to a device for polishing a pipe head of a sheathing pipe blank, which comprises a lifting motor, a bracing wire, a fixing ring, a pipe inlet seat, a mounting seat, a gear II, a gear ring II, a clamping motor, a rotating head, a brush roll, a polishing brush, a lifting rope, a fixing ring, a lifting motor, a lifting plate, a lifting rope, the method can ensure that the prepared protecting sleeve pipe head is flat and smooth, so that the subsequent thread processing of the protecting sleeve and the butt joint work between the protecting sleeves are facilitated, and the working efficiency is improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a tube head polishing device according to the present invention;
FIG. 2 is a cross-sectional view of a tube head polishing device according to the present invention;
FIG. 3 is an internal structural view of the mount of the present invention;
FIG. 4 is a perspective view of a partial structure of the tube head polishing device according to the present invention;
fig. 5 is a sectional view of a partial structure of a tube head grinding device according to the present invention.
In the figure: 1. a support frame; 2. a lifting plate; 3. a lifting motor; 4. a threaded rod; 5. a pipe inlet seat; 6. a mounting seat; 7. a stationary ring; 8. pulling a rope; 9. rotating the head; 10. a brush roll; 11. a stationary ring plate; 12. polishing a brush; 13. polishing the motor; 14. a first gear ring; 15. a clamping seat; 16. a clamping motor; 17. a gear ring II; 18. a clamping block; 19. a guide bar; 20. and (7) fixing the plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-5, the outdoor high-strength flame-retardant PVC sheathing tube is prepared from the following raw materials in parts by weight:
25 parts of polyvinyl chloride, 13 parts of polytetrafluoroethylene powder, 5 parts of bentonite, 6 parts of graphene, 5 parts of octyl triethoxysilane, 4 parts of stearic acid, 4 parts of zinc oxide, 3 parts of sodium alginate, 8 parts of polypropylene short fibers, 6 parts of rock wool fibers, 4 parts of wood powder, 3 parts of hexaphenoxycyclotriphosphazene, 5 parts of gum arabic and 7 parts of white carbon black.
A preparation method of an outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve specifically comprises the following steps:
adding polyvinyl chloride, polytetrafluoroethylene powder, bentonite, graphene, octyl triethoxysilane, stearic acid, zinc oxide, sodium alginate, polypropylene short fibers, rock wool fibers, wood powder and hexa-phenoxy cyclotriphosphazene into a reaction kettle, stirring at the speed of 500r/min for 20min, then carrying out melt blending at 185 ℃ for 15min, then carrying out crosslinking at 190 ℃ for 25min, adding gum arabic and white carbon black, and carrying out reaction for 15min to obtain a mixed material;
adding the mixed materials into a double-screw extruder for blending extrusion, then granulating to obtain granules, adding the granules into a basic forming machine for forming, sizing, drawing and cutting to obtain a sheath tube blank;
step three, starting a lifting motor 3 of the tube head polishing device, driving a threaded rod 4 to rotate by the lifting motor 3, driving a lifting plate 2 to lift by the threaded rod 4, driving a tube inlet seat 5 and a mounting seat 6 to lift by the lifting plate 2 through a pull rope 8 and a fixing ring 7, adjusting the heights of the tube inlet seat 5 and the mounting seat 6 to enable one end of a mounting hole of the tube inlet seat 5 to be aligned with one end of a green body of a protective sleeve, inserting the green body of the protective sleeve into the tube inlet seat 5, enabling the green body of the protective sleeve to sequentially penetrate through the tube inlet seat 5 and a clamping seat 15, enabling one end of the green body of the protective sleeve to be positioned between a brush roller 10 and a polishing brush 12, starting a clamping motor 16, driving a gear II to rotate by the clamping motor 16, driving a gear II 17 meshed with the gear II to rotate, driving three clamping blocks 18 in threaded fit with the gear II 17 to radially move, starting the grinding motor 13, driving the rotating head 9 to rotate by the grinding motor 13 through the first gear and the first gear ring 14, driving the brush roller 10 and the grinding brush 12 to rotate, grinding the head of the sheathed tube blank through the brush roller 10 and the grinding brush 12 to obtain the outdoor high-strength flame-retardant PVC sheathed tube, testing the tensile strength and the elongation at break of the sheathed tube according to the GB/T1040.1-2006 standard, testing the oxygen index of the sheathed tube according to the GB/T2406-1993 standard, testing the flame-retardant grade of the sheathed tube according to the GB12666.5 standard, testing the tensile strength of the sheathed tube to be 36MPa, the elongation at break to be 895%, the oxygen index to be 39%, and the flame-retardant grade to be A, wherein the outdoor high-strength flame-retardant PVC sheathed tube has high strength and good flame-retardant property.
Example 2
As shown in fig. 1-5, the outdoor high-strength flame-retardant PVC sheathing tube is prepared from the following raw materials in parts by weight:
30 parts of polyvinyl chloride, 15 parts of polytetrafluoroethylene powder, 7 parts of bentonite, 9 parts of graphene, 6 parts of octyl triethoxysilane, 7 parts of stearic acid, 8 parts of zinc oxide, 7 parts of sodium alginate, 9 parts of polypropylene short fibers, 7 parts of rock wool fibers, 6 parts of wood powder, 8 parts of hexaphenoxycyclotriphosphazene, 8 parts of gum arabic and 9 parts of white carbon black.
A preparation method of an outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve specifically comprises the following steps:
adding polyvinyl chloride, polytetrafluoroethylene powder, bentonite, graphene, octyl triethoxysilane, stearic acid, zinc oxide, sodium alginate, polypropylene short fiber, rock wool fiber, wood powder and hexa-phenoxy cyclotriphosphazene into a reaction kettle, stirring at the speed of 800r/min for 30min, then melting and blending at 200 ℃ for 20min, then crosslinking at 205 ℃ for 40min, adding gum arabic and white carbon black, and reacting for 20min to obtain a mixed material;
adding the mixed materials into a double-screw extruder for blending extrusion, then granulating to obtain granules, adding the granules into a basic forming machine for forming, sizing, drawing and cutting to obtain a sheath tube blank;
step three, starting a lifting motor 3 of the tube head polishing device, driving a threaded rod 4 to rotate by the lifting motor 3, driving a lifting plate 2 to lift by the threaded rod 4, driving a tube inlet seat 5 and a mounting seat 6 to lift by the lifting plate 2 through a pull rope 8 and a fixing ring 7, adjusting the heights of the tube inlet seat 5 and the mounting seat 6 to enable one end of a mounting hole of the tube inlet seat 5 to be aligned with one end of a green body of a protective sleeve, inserting the green body of the protective sleeve into the tube inlet seat 5, enabling the green body of the protective sleeve to sequentially penetrate through the tube inlet seat 5 and a clamping seat 15, enabling one end of the green body of the protective sleeve to be positioned between a brush roller 10 and a polishing brush 12, starting a clamping motor 16, driving a gear II to rotate by the clamping motor 16, driving a gear II 17 meshed with the gear II to rotate, driving three clamping blocks 18 in threaded fit with the gear II 17 to radially move, starting a grinding motor 13, driving a rotating head 9 to rotate by the grinding motor 13 through a first gear and a first gear ring 14, driving a brush roller 10 and a grinding brush 12 to rotate, grinding a billet tube head of a sheath tube through the brush roller 10 and the grinding brush 12 to obtain an outdoor high-strength flame-retardant PVC sheath tube, testing the tensile strength and the elongation at break of the sheath tube according to the GB/T1040.1-2006 standard, testing the oxygen index of the sheath tube according to the GB/T2406-1993 standard, testing the flame-retardant grade of the sheath tube according to the GB12666.5 standard, testing the tensile strength of the sheath tube to be 38MPa, the elongation at break to be 905%, the oxygen index to be 40%, and the flame-retardant grade to be A.
The tube head polishing device comprises a support frame 1, wherein a lifting plate 2 is movably mounted on the support frame 1 along the vertical direction, a lifting motor 3 is fixedly mounted at the top of the support frame 1, a threaded rod 4 is rotatably mounted on the support frame 1, the output shaft end of the lifting motor 3 is fixedly connected with the top end of the threaded rod 4, the threaded rod 4 is in threaded connection with the lifting plate 2, two ends of the lifting plate 2 are fixedly connected with pull ropes 8, one ends of the two pull ropes 8 are respectively fixed with a fixing ring 7, the two fixing rings 7 are respectively sleeved on a tube inlet tube seat 5 and a mounting seat 6, and mounting holes penetrating through the end faces of the two ends of the tube inlet seat 5 are formed in the tube inlet;
a rotating head 9 is rotatably mounted on the inner wall of one side of the mounting seat 6, a brush roll 10 and a fixed ring plate 11 are fixedly mounted at one end of the rotating head 9, a polishing brush 12 is fixedly mounted on the inner circumferential surface of the fixed ring plate 11, and a polishing motor 13 for driving the rotating head 9 to rotate is fixedly mounted on the inner wall of one side of the mounting seat 6;
the inboard fixed mounting of mount pad 6 has grip slipper 15, fixed mounting has centre gripping motor 16 on the grip slipper 15, the output shaft fixed mounting of centre gripping motor 16 has gear two, rotate on the grip slipper 15 and install ring gear two 17, screw thread has been seted up to one side of ring gear two 17, gear two and the meshing of ring gear two 17, there is three grip block 18 along radial slidable mounting on the grip slipper 15, ring gear two 17 respectively with the 18 screw-thread fit of three grip block.
An output shaft end of the grinding motor 13 is fixedly provided with a first gear, a first gear ring 14 is sleeved on the rotating head 9, and the first gear is meshed with the first gear ring 14.
The brush roller 10 is fixedly installed in the middle of one end face of the rotating head 9, and the fixed ring plate 11 is fixedly installed at the edge of the outer peripheral face of one end face of the rotating head 9.
The fixed plate 20 is horizontally arranged below the lifting plate 2, the fixed plate 20 is fixedly connected with the support frame 1 through four guide rods 19, and the lifting plate 2 is respectively connected with the four guide rods 19 in a sliding mode.
The three clamping blocks 18 are distributed on the clamping seat 15 in an equal radian circumferential array.
The working method of the tube head grinding device specifically comprises the following steps:
starting a lifting motor 3, the lifting motor 3 drives a threaded rod 4 to rotate, the threaded rod 4 drives a lifting plate 2 to lift, the lifting plate 2 drives an inlet pipe seat 5 and a mounting seat 6 to lift through a pull rope 8 and a fixing ring 7, the heights of the inlet pipe seat 5 and the mounting seat 6 are adjusted, one end of a mounting hole of the inlet pipe seat 5 is aligned with one end of a green body of a protective sleeve, the green body of the protective sleeve is inserted into the inlet pipe seat 5 and sequentially passes through the inlet pipe seat 5 and a clamping seat 15, one end of the green body of the protective sleeve is positioned between a brush roll 10 and a polishing brush 12, a clamping motor 16 is started, the clamping motor 16 drives a gear II to rotate, the gear II drives a gear ring II 17 meshed with the gear II to rotate, the gear ring II 17 drives three clamping blocks 18 in threaded fit with the gear ring II to radially move along the clamping seat 15, so that the three clamping blocks 18 clamp the green body of the, The first gear ring 14 drives the rotating head 9 to rotate and drives the brush roll 10 and the polishing brush 12 to rotate, and the head of the green body of the sheath tube is polished through the brush roll 10 and the polishing brush 12.
According to the invention, polytetrafluoroethylene powder, graphene, polypropylene short fibers and rock wool fibers are added into the raw materials for preparing the protective sleeve, so that the strength of the protective sleeve is effectively improved, the zinc oxide is added, ultraviolet rays can be shielded, the service life of the protective sleeve is ensured, the flame retardant property of the protective sleeve is improved, the mechanical strength of the protective sleeve is ensured, the tensile strength and the elongation at break of the protective sleeve are tested according to the GB/T1040.1-2006 standard, the oxygen index of the protective sleeve is tested according to the GB/T2406-1993 standard, the flame retardant grade of the protective sleeve is tested according to the GB12666.5 standard, the tensile strength of the protective sleeve is 36-38MPa, the elongation at break is 895-905%, the oxygen index is 39-40%, the flame retardant grade is A grade, and the strength of the outdoor high-strength flame retardant PVC protective sleeve is high, the flame retardant property is good;
the invention relates to a device for clamping a protecting sleeve blank, which is characterized in that a lifting motor 3 drives a threaded rod 4 to rotate, the threaded rod 4 drives a lifting plate 2 to lift, the lifting plate 2 drives a pipe inlet seat 5 and a mounting seat 6 to lift through a pull rope 8 and a fixing ring 7, the heights of the pipe inlet seat 5 and the mounting seat 6 are adjusted, one end of a mounting hole of the pipe inlet seat 5 is aligned with one end of the protecting sleeve blank, the protecting sleeve blank is inserted into the pipe inlet seat 5, the protecting sleeve blank sequentially passes through the pipe inlet seat 5 and a clamping seat 15, one end of the protecting sleeve blank is positioned between a brush roll 10 and a polishing brush 12, a gear II is driven to rotate through a clamping motor 16, the gear II drives a gear ring II 17 meshed with the gear II to rotate, the gear ring II 17 drives three clamping blocks 18 in threaded fit with the gear II to radially move along the clamping seat 15, so that the three clamping blocks 18 clamp the, the brush roll 10 and the polishing brush 12 are driven to rotate, the head of the sheathed tube blank is polished by the brush roll 10 and the polishing brush 12, and the prepared sheathed tube blank head can be ensured to be flat and smooth, so that the subsequent thread processing of the sheathed tube and the butt joint work between the sheathed tubes are facilitated, and the working efficiency is improved.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The outdoor high-strength flame-retardant PVC protective sleeve is characterized by being prepared from the following raw materials in parts by weight:
25-30 parts of polyvinyl chloride, 13-15 parts of polytetrafluoroethylene powder, 5-7 parts of bentonite, 6-9 parts of graphene, 5-6 parts of octyl triethoxysilane, 4-7 parts of stearic acid, 4-8 parts of zinc oxide, 3-7 parts of sodium alginate, 8-9 parts of polypropylene short fiber, 6-7 parts of rock wool fiber, 4-6 parts of wood powder, 3-8 parts of hexa phenoxy cyclotriphosphazene, 5-8 parts of gum arabic and 7-9 parts of white carbon black;
the sheath tube is prepared by the following steps:
step one, adding polyvinyl chloride, polytetrafluoroethylene powder, bentonite, graphene, octyltriethoxysilane, stearic acid, zinc oxide, sodium alginate, polypropylene short fiber, rock wool fiber, wood powder and hexaphenoxycyclotriphosphazene into a reaction kettle, stirring for 20-30min at the speed of 500-;
adding the mixed materials into a double-screw extruder for blending extrusion, then granulating to obtain granules, adding the granules into a basic forming machine for forming, sizing, drawing and cutting to obtain a sheath tube blank;
step three, starting a lifting motor (3) of the tube head polishing device, driving a threaded rod (4) to rotate by the lifting motor (3), driving a lifting plate (2) to lift by the threaded rod (4), driving a tube inlet seat (5) and a mounting seat (6) to lift by the lifting plate (2) through a pull rope (8) and a fixing ring (7), adjusting the heights of the tube inlet seat (5) and the mounting seat (6), aligning one end of a mounting hole of the tube inlet seat (5) with one end of a sheath tube blank, inserting the sheath tube blank into the tube inlet seat (5), enabling the sheath tube blank to sequentially pass through the tube inlet seat (5) and a clamping seat (15), enabling one end of the sheath tube blank to be located between a brush roller (10) and a polishing brush (12), starting a clamping motor (16), driving a gear II to rotate by the clamping motor (16), driving a gear II (17) to rotate, driving three clamping blocks (18) in threaded fit with the gear II to radially move along the clamping seat (15), the three clamping blocks (18) are enabled to clamp the sheathing tube blank body tightly, the polishing motor (13) is started, the polishing motor (13) drives the rotating head (9) to rotate through the first gear and the first gear ring (14), the brush roll (10) and the polishing brush (12) are driven to rotate, the tube head of the sheathing tube blank body is polished through the brush roll (10) and the polishing brush (12), and the outdoor high-strength flame-retardant PVC sheathing tube is obtained.
2. The preparation method of the outdoor high-strength flame-retardant PVC sheath pipe is characterized by comprising the following steps:
step one, adding polyvinyl chloride, polytetrafluoroethylene powder, bentonite, graphene, octyltriethoxysilane, stearic acid, zinc oxide, sodium alginate, polypropylene short fiber, rock wool fiber, wood powder and hexaphenoxycyclotriphosphazene into a reaction kettle, stirring for 20-30min at the speed of 500-;
adding the mixed materials into a double-screw extruder for blending extrusion, then granulating to obtain granules, adding the granules into a basic forming machine for forming, sizing, drawing and cutting to obtain a sheath tube blank;
step three, starting a lifting motor (3) of the tube head polishing device, driving a threaded rod (4) to rotate by the lifting motor (3), driving a lifting plate (2) to lift by the threaded rod (4), driving a tube inlet seat (5) and a mounting seat (6) to lift by the lifting plate (2) through a pull rope (8) and a fixing ring (7), adjusting the heights of the tube inlet seat (5) and the mounting seat (6), aligning one end of a mounting hole of the tube inlet seat (5) with one end of a sheath tube blank, inserting the sheath tube blank into the tube inlet seat (5), enabling the sheath tube blank to sequentially pass through the tube inlet seat (5) and a clamping seat (15), enabling one end of the sheath tube blank to be located between a brush roller (10) and a polishing brush (12), starting a clamping motor (16), driving a gear II to rotate by the clamping motor (16), driving a gear II (17) to rotate, driving three clamping blocks (18) in threaded fit with the gear II to radially move along the clamping seat (15), the three clamping blocks (18) are enabled to clamp the sheathing tube blank body tightly, the polishing motor (13) is started, the polishing motor (13) drives the rotating head (9) to rotate through the first gear and the first gear ring (14), the brush roll (10) and the polishing brush (12) are driven to rotate, the tube head of the sheathing tube blank body is polished through the brush roll (10) and the polishing brush (12), and the outdoor high-strength flame-retardant PVC sheathing tube is obtained.
3. The preparation method of the outdoor high-strength flame-retardant PVC sheathing tube according to claim 2, it is characterized in that the tube head polishing device comprises a support frame (1), a lifting plate (2) is movably arranged on the support frame (1) along the vertical direction, the top of the support frame (1) is fixedly provided with a lifting motor (3), the support frame (1) is rotatably provided with a threaded rod (4), the output shaft end of the lifting motor (3) is fixedly connected with the top end of the threaded rod (4), the threaded rod (4) is in threaded connection with the lifting plate (2), pull ropes (8) are fixedly connected to two ends of the lifting plate (2), fixing rings (7) are fixed to one ends of the two pull ropes (8), the two fixing rings (7) are respectively sleeved on the tube inlet seat (5) and the mounting seat (6), and mounting holes penetrating through end faces of two ends of the tube inlet seat (5) are formed in the tube inlet seat;
a rotating head (9) is rotatably mounted on the inner wall of one side of the mounting seat (6), a brush roller (10) and a fixed ring plate (11) are fixedly mounted at one end of the rotating head (9), a polishing brush (12) is fixedly mounted on the inner circumferential surface of the fixed ring plate (11), and a polishing motor (13) for driving the rotating head (9) to rotate is fixedly mounted on the inner wall of one side of the mounting seat (6);
inboard fixed mounting of mount pad (6) has grip slipper (15), fixed mounting has centre gripping motor (16) on grip slipper (15), the output shaft fixed mounting of centre gripping motor (16) has gear two, it installs ring gear two (17) to rotate on grip slipper (15), the screw thread has been seted up to one side of ring gear two (17), gear two and ring gear two (17) meshing, there are three grip block (18) along radial slidable mounting on grip slipper (15), ring gear two (17) respectively with three grip block (18) screw-thread fit.
4. The method for preparing the outdoor high-strength flame-retardant PVC sheath pipe according to claim 3, wherein a first gear is fixedly installed at an output shaft end of the grinding motor (13), a first gear ring (14) is sleeved on the rotating head (9), and the first gear is meshed with the first gear ring (14).
5. The method for preparing the outdoor high-strength flame-retardant PVC sheathing tube according to claim 3, wherein the brush roller (10) is fixedly installed in the middle of one end surface of the rotating head (9), and the fixed ring plate (11) is fixedly installed at the edge of the outer circumferential surface of one end surface of the rotating head (9).
6. The preparation method of the outdoor high-strength flame-retardant PVC sheathing tube according to claim 3, wherein a fixing plate (20) is horizontally arranged below the lifting plate (2), the fixing plate (20) is fixedly connected with the supporting frame (1) through four guide rods (19), and the lifting plate (2) is respectively connected with the four guide rods (19) in a sliding manner.
7. The method for preparing the outdoor high-strength flame-retardant PVC sheathing tube according to claim 3, wherein the three clamping blocks (18) are distributed on the clamping seat (15) in an equal-radian circumferential array.
8. The preparation method of the outdoor high-strength flame-retardant PVC sheathing tube as claimed in claim 3, wherein the working method of the tube head grinding device specifically comprises the following steps:
starting a lifting motor (3), driving a threaded rod (4) to rotate by the lifting motor (3), driving a lifting plate (2) to lift by the threaded rod (4), driving a tube inlet seat (5) and a mounting seat (6) to lift by the lifting plate (2) through a pull rope (8) and a fixing ring (7), adjusting the heights of the tube inlet seat (5) and the mounting seat (6), aligning one end of a mounting hole of the tube inlet seat (5) with one end of a sheath tube blank, inserting the sheath tube blank into the tube inlet seat (5), enabling the sheath tube blank to sequentially pass through the tube inlet seat (5) and a clamping seat (15), enabling one end of the sheath tube blank to be positioned between a brush roller (10) and a polishing brush (12), starting a clamping motor (16), driving a gear II to rotate by the gear II, driving a gear ring (17) meshed with the gear II to rotate, driving three clamping blocks (18) in threaded fit with the gear ring II to radially move along the clamping seat (15) by the gear ring (17), the three clamping blocks (18) are used for clamping the sheathed tube blank, the grinding motor (13) is started, the grinding motor (13) drives the rotating head (9) to rotate through the first gear and the first gear ring (14), the brush roll (10) and the grinding brush (12) are driven to rotate, and the tube head of the sheathed tube blank is ground through the brush roll (10) and the grinding brush (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957805.0A CN111995829A (en) | 2020-09-12 | 2020-09-12 | Outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010957805.0A CN111995829A (en) | 2020-09-12 | 2020-09-12 | Outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111995829A true CN111995829A (en) | 2020-11-27 |
Family
ID=73469985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010957805.0A Withdrawn CN111995829A (en) | 2020-09-12 | 2020-09-12 | Outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111995829A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734354A (en) * | 2022-06-13 | 2022-07-12 | 中铁三局集团有限公司 | Automatic cleaning system for pier column die |
-
2020
- 2020-09-12 CN CN202010957805.0A patent/CN111995829A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734354A (en) * | 2022-06-13 | 2022-07-12 | 中铁三局集团有限公司 | Automatic cleaning system for pier column die |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111995829A (en) | Outdoor high-strength flame-retardant PVC (polyvinyl chloride) protective sleeve and preparation method thereof | |
| CN109994290B (en) | Flame-retardant power cable processing system and method | |
| CN111697492B (en) | Electric power iron tower high-voltage line preloading device | |
| CN114400113A (en) | Environment-friendly insulating cable and processing technology thereof | |
| CN111890778B (en) | Production and processing method of composite geotextile | |
| CN214175729U (en) | Photoelectric composite cable for water | |
| CN213679220U (en) | Overhead conductor take-up device based on traction of winching machine | |
| CN210594644U (en) | Cable arrangement equipment for 5G base station controller | |
| CN211733427U (en) | Wire and cable winding device | |
| CN213923564U (en) | Quick coiling mechanism of finished product rope is used in rope processing | |
| CN221328472U (en) | Auxiliary device for cable laying | |
| CN106298093A (en) | A kind of actinobacillus device of the band back twist function of sea cable vertical cable-former | |
| CN217577872U (en) | Pulley type telescopic frame for retracting and releasing underground cable | |
| CN215808102U (en) | Special safe voltage lighting device of geotechnique's grid striping machine production is moulded to steel | |
| CN111416303A (en) | Power engineering cable laying method and stranding and grinding machine for laying | |
| CN206920665U (en) | The non-concentric formula high speed bundling machine that a kind of yarn group separates with cable center | |
| CN219906495U (en) | Wire rope and cable winding device | |
| CN214956222U (en) | Outer wall abrasionproof decreases formula silicone resin glass fiber sleeve pipe | |
| CN214733203U (en) | Waterproofing membrane transmission is used in production | |
| CN212530714U (en) | Protective equipment for hydraulic engineering | |
| CN219652643U (en) | Steel structure climbing device | |
| CN221071777U (en) | Ring spinning machine traction assembly for spinning core-spun yarn | |
| CN219385530U (en) | Chemical fiber rope net braiding twisting machine | |
| CN215071364U (en) | Traction device for pulling out cable in pipeline | |
| CN212571925U (en) | Electric wire poling device for water and electricity construction |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201127 |