CN111089201B - Polyethylene double-wall corrugated pipe with excellent antibacterial property and preparation method thereof - Google Patents
Polyethylene double-wall corrugated pipe with excellent antibacterial property and preparation method thereof Download PDFInfo
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- CN111089201B CN111089201B CN201911379711.3A CN201911379711A CN111089201B CN 111089201 B CN111089201 B CN 111089201B CN 201911379711 A CN201911379711 A CN 201911379711A CN 111089201 B CN111089201 B CN 111089201B
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 39
- -1 Polyethylene Polymers 0.000 title claims abstract description 27
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 26
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims description 57
- 230000007246 mechanism Effects 0.000 claims description 43
- 239000003963 antioxidant agent Substances 0.000 claims description 24
- 230000003078 antioxidant effect Effects 0.000 claims description 24
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 17
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 12
- 239000003431 cross linking reagent Substances 0.000 claims description 11
- 239000000314 lubricant Substances 0.000 claims description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- 239000003242 anti bacterial agent Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 8
- 239000012745 toughening agent Substances 0.000 claims description 8
- 229910021536 Zeolite Inorganic materials 0.000 claims description 7
- 239000010457 zeolite Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 230000000670 limiting effect Effects 0.000 claims description 4
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical group CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 229940057995 liquid paraffin Drugs 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000004480 active ingredient Substances 0.000 description 4
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241000195493 Cryptophyta Species 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/18—Pleated or corrugated hoses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/20—Double-walled hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L31/00—Arrangements for connecting hoses to one another or to flexible sleeves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/16—Screw-threaded joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
Abstract
The invention discloses a polyethylene double-wall corrugated pipe with excellent antibacterial property and a preparation method thereof, wherein the polyethylene double-wall corrugated pipe comprises a corrugated pipe body, double-wall flaring holes, double-wall necking holes and reinforcing ribs; the corrugated pipe comprises a corrugated pipe body and is characterized in that a double-wall flaring opening which is flared outwards is arranged at one end of the corrugated pipe body, a double-wall necking opening which is shrunk inwards is arranged at the other end of the corrugated pipe body, three reinforcing ribs are arranged between the double-wall necking opening and the double-wall flaring opening at equal angles, and the double-wall flaring opening is matched with the double-wall necking opening; through the setting of double-walled flaring and double-walled throat, the connection between the bellows of being convenient for, convenient dismantlement through the setting of strengthening rib, is convenient for increase the intensity of bellows simultaneously, improves its life.
Description
Technical Field
The invention relates to the technical field of corrugated pipes, in particular to a polyethylene double-wall corrugated pipe with excellent antibacterial property and a preparation method thereof.
Background
The corrugated pipe is a pipe with an outer wall with an annular structure and a smooth inner wall. The outer wall is of an annular corrugated structure, so that the annular rigidity of the pipe is greatly enhanced, the resistance of the pipeline to soil load is enhanced, and a better soil body effect is achieved. And the weight of the corrugated pipe is lighter than that of a cement pipe, so that the corrugated pipe is very convenient to carry and construct.
The method is widely applied to drainage engineering;
the existing Polyethylene (PE) double-wall corrugated pipe is mainly used for buried drainage or industrial drainage and pollution discharge. The water quality is poor, bacteria and microorganism algae are easy to breed, and the water is accumulated for a long time to cause pipeline blockage; in addition, in the process of preparing the corrugated pipe, because the corrugated pipe is longer, the corrugated pipe is easy to bend or break in the forming process because no supporting and guiding structure is arranged, and the product quality and the working efficiency are reduced; and the existing forming equipment has low automation degree and troublesome operation, and is inconvenient to be suitable for forming corrugated pipes with different diameters.
Disclosure of Invention
In order to overcome the above technical problems, an object of the present invention is to provide a polyethylene double-wall corrugated pipe having excellent antibacterial properties and a method for preparing the same:
through the setting of double-walled flaring and double-walled throat, the connection between the bellows of being convenient for, convenient dismantlement through the setting of strengthening rib, is convenient for increase the intensity of bellows simultaneously, improves its life.
Zn-zeolite is selected in the antibacterial master batch and matched with nano zinc oxide powder to construct a nano zinc oxide sterilization system; wherein, Zn-zeolite can be used as an antioxidant of the nano zinc oxide powder, thus improving the lasting effect of the nano zinc oxide powder; the antibacterial master batch has antibacterial active ingredients, such as nano silver ions or zinc ions, so that the corrugated pipe has the antibacterial and bactericidal effects, bacteria on the inner wall of the pipe are prevented from breeding, meanwhile, an antioxidant and an auxiliary antioxidant are added to prevent the antibacterial active ingredients from being rapidly oxidized, the antioxidant capacity is improved, and the antibacterial aging is prolonged; the inorganic nano titanium antibacterial agent takes anatase titanium dioxide crystal material as a main body, and causes bacteria and microbial cells to die through photocatalysis; the problem of pipeline blockage caused by breeding of bacteria and microorganism algae in an HDPE double-wall corrugated pipeline for underground drainage or pollution discharge is reduced;
according to the invention, the heights of the cylinder five and the clamping disc are adjusted, so that the device is convenient to adapt to equipment with different heights, the clamping disc is convenient to fix corrugated pipes with different diameters, and the practicability is strong; the corrugated pipe is pulled to move, and is longer, so that the corrugated pipe is prevented from being bent or broken in the forming process;
the corrugated pipe is fixed under the action of the first clamp, the second clamp and the third clamp, and is cut, so that the problem that the corrugated pipe shakes in the cutting process to cause poor and inaccurate cutting effect is avoided, meanwhile, the first clamp, the second clamp and the third clamp can play a certain supporting role in the movement process of the corrugated pipe by the stretching mechanism, and the corrugated pipes with different diameters can be conveniently fixed; through under the effect of rocking arm one, rocking arm two, drive the cutting knife and be elevating movement, and then the cutting for under the effect of rocking arm one, rocking arm two, it is more stable that the cutting knife goes up and down, and the cutting effect is better. The forming equipment is high in automation degree, simple in operation, convenient and suitable for forming corrugated pipes with different diameters, meanwhile, the formed corrugated pipe is prevented from being damaged, and the product quality and the working efficiency are improved
The purpose of the invention can be realized by the following technical scheme:
a polyethylene double-wall corrugated pipe with excellent antibacterial property comprises a corrugated pipe body, a double-wall flaring, a double-wall necking and reinforcing ribs; the corrugated pipe comprises a corrugated pipe body and is characterized in that a double-wall flaring opening which is flared outwards is arranged at one end of the corrugated pipe body, a double-wall necking opening which is shrunk inwards is arranged at the other end of the corrugated pipe body, three reinforcing ribs are arranged between the double-wall necking opening and the double-wall flaring opening at equal angles, and the double-wall flaring opening is matched with the double-wall necking opening;
the corrugated pipe body is prepared from the following raw materials in parts by weight: 100 portions of 105 portions of polyethylene, 7 to 9 portions of inorganic nano reinforcing powder, 2 to 5 portions of toughening agent, 1 to 3 portions of antibacterial master batch, 1 to 2 portions of inorganic nano titanium antibacterial agent, 0.3 to 0.5 portion of antioxidant, 0.2 to 0.3 portion of auxiliary antioxidant, 1 to 2 portions of lubricant, 1 to 2 portions of cross-linking agent and 1 to 2 portions of nano zinc oxide powder.
As a further scheme of the invention: the outer wall of the corrugated pipe body is of a trapezoidal hollow structure which is arranged at equal intervals.
As a further scheme of the invention: the inner wall of the double-wall flaring is provided with internal threads, the outer wall of the double-wall necking is provided with external threads, and the internal threads are meshed with the external threads.
As a further scheme of the invention: the lubricant is pentaerythritol stearate; the cross-linking agent is di-tert-butyl peroxide.
As a further scheme of the invention: the antibacterial master batch comprises 50-85 parts by weight of thermoplastic resin; 5-15 parts by weight of Zn-A zeolite; 5-15 parts by weight of a mildew inhibitor; 0.2-0.4 parts by weight of a coupling agent; 0.05-0.2 weight parts of auxiliary agent; 2-3 parts by weight of liquid paraffin.
As a further scheme of the invention: the preparation method of the corrugated pipe comprises the following steps:
weighing 105 parts by weight of polyethylene, 7-9 parts by weight of inorganic nano reinforcing powder, 2-5 parts by weight of toughening agent, 1-3 parts by weight of antibacterial master batch, 1-2 parts by weight of inorganic nano titanium antibacterial agent, 0.3-0.5 part by weight of antioxidant, 0.2-0.3 part by weight of auxiliary antioxidant, 1-2 parts by weight of lubricant, 1-2 parts by weight of cross-linking agent and 1-2 parts by weight of nano zinc oxide powder raw materials, mixing the raw materials, then placing the mixture into an internal mixer, carrying out internal mixing at 190 ℃, carrying out extrusion granulation, putting the granulated material into a feeding hopper in a single screw extruder, starting a first driving motor, driving a screw to rotate through a coupler, and carrying out extrusion molding on a corrugated pipe;
step two, driving a servo motor II to drive a belt to rotate, driving a sliding block to move by the belt, further driving a bottom plate to slide on a guide rail, further driving a clamping disc and a cylinder five to move, then driving the cylinder five, pushing the clamping disc to move through a piston rod until a formed corrugated pipe is inserted into a groove, and then pulling the corrugated pipe to move through a stretching mechanism;
step three, when the length of the corrugated pipe needs to be cut, the stretching mechanism stops working, the cylinder II and the cylinder III are driven simultaneously, the cylinder II pushes the moving plate to move horizontally, the clamp I is further pushed to move horizontally, the cylinder III pushes the lifting plate to descend vertically, the clamp II is further pushed to descend, and the corrugated pipe is fixed under the action of the clamp I, the clamp II and the clamp III; then, a second driving motor and the first air cylinder are started to work, the second driving motor drives the cutting knife to rotate for cutting, the air cylinder drives the connecting rod to lift, and the first rocker arm and the second rocker arm drive the cutting knife to lift and move under the action of the first rocker arm and the second rocker arm, so that cutting is achieved.
As a further scheme of the invention: the working steps of the extruding unit are as follows:
step one, driving a servo motor I to drive a screw rod to rotate, driving a lifting platform to lift by the screw rod, further driving a cylinder five to lift by a balance rope, adjusting the heights of the cylinder five and a clamping disc, then adding various raw materials into a feeding hopper, starting a driving motor I, driving the screw rod to rotate by a coupler, and extruding and molding a corrugated pipe;
secondly, driving a servo motor II to drive a belt to rotate, driving a sliding block to move by the belt, further driving a bottom plate to slide on a guide rail, further driving a clamping disc and a cylinder to move, then driving the cylinder to move, pushing the clamping disc to move through a piston rod until the formed corrugated pipe is inserted into the groove, and then pulling the corrugated pipe to move through a stretching mechanism;
step three, when the length of the corrugated pipe needs to be cut, the stretching mechanism stops working, the cylinder II and the cylinder III are driven simultaneously, the cylinder II pushes the moving plate to move horizontally, the clamp I is further pushed to move horizontally, the cylinder III pushes the lifting plate to descend vertically, the clamp II is further pushed to descend, and the corrugated pipe is fixed under the action of the clamp I, the clamp II and the clamp III; then, a second driving motor and the first air cylinder are started to work, the second driving motor drives the cutting knife to rotate for cutting, the air cylinder drives the connecting rod to lift, and the first rocker arm and the second rocker arm drive the cutting knife to lift and move under the action of the first rocker arm and the second rocker arm, so that cutting is achieved.
As a further scheme of the invention: the extruder set comprises a base, a first driving motor, a cutting mechanism, a fixed clamp and a stretching mechanism, wherein the first driving motor is fixedly installed at one end of the top of the base, an output shaft of the first driving motor is connected with a screw rod through a coupler, a threaded cylinder is arranged outside the screw rod, a shell is installed outside the threaded cylinder, four heaters are fixedly installed at the top of the base and below the threaded cylinder, a feeding hopper is fixedly installed at the top of the shell, the cutting mechanism is fixedly installed at the top of the base, the cutting mechanism is located on one side, far away from the first driving motor, of the threaded cylinder, the fixed clamp is fixedly installed at the other side of the cutting mechanism, and the stretching mechanism is arranged at the other side of the fixed clamp;
the cutting mechanism comprises a first air cylinder and a second driving motor, the first air cylinder is obliquely arranged on the top of the base, the end part of a piston rod of the first air cylinder is connected with the center of a horizontally arranged connecting rod, two ends of the connecting rod are movably connected with a first rocker arm, the other end of the first rocker arm is provided with a second rocker arm, the second rocker arm is rotatably connected with a supporting plate, the supporting plate is vertically arranged on the top of the base, the other end of the second rocker arm is connected with the second driving motor, the second driving motor drives a cutting knife to rotate, and the cutting knife is vertically arranged with the corrugated pipe; connecting plates are symmetrically arranged on two sides of the first air cylinder, a first guide rod is movably connected to each connecting plate, and the top of each first guide rod is connected with the corresponding first guide rod through a Y-shaped joint;
the fixing clamp comprises a first support and a third support, a plurality of first supports are vertically arranged on the top of the base, an installation plate is horizontally arranged on the top of the first supports, and a plurality of third clamps are uniformly arranged on one side of the installation plate; the lifting plate is vertically arranged on the bottom of a piston rod of the cylinder III, a plurality of lifting plates are vertically and uniformly arranged on the bottom of the lifting plate, the clamps I, the clamps II and the clamps III are all arc-shaped structures, and rubber pads are arranged on one sides of the clamps I, the clamps II and the clamps III;
the stretching mechanism comprises guide rails and four supports, the two guide rails are fixedly installed vertically on the top of the base and are arranged in parallel, the guide rails are connected with the rollers in a sliding mode, the rollers are installed at four corners of the bottom plate, the four supports are fixedly installed at the top of the bottom plate, a top plate is fixedly installed at the tops of the four supports, a first servo motor is vertically installed at the center of the top plate, an output shaft of the first servo motor penetrates through the top plate and is connected with a lead screw, the lead screw penetrates through the lifting platform and is in threaded connection with the lifting platform, two guide rods are vertically installed at four corners of the bottom of the top plate, the two guide rods penetrate through the lifting platform, and a limiting block is fixedly installed at the bottoms of the; the two ends of the top of the lifting platform are fixedly provided with balance ropes, the balance ropes are obliquely arranged, the other ends of the balance ropes are connected with a cylinder five, the cylinder five is arranged in parallel with the guide rail, the two sides of the cylinder five are slidably connected with a support frame four, the end part of a piston rod of the cylinder five is fixedly provided with a clamping disc, the other side of the clamping disc is provided with a circular groove, the periphery of the clamping disc is provided with a cylinder four, and a piston rod of the cylinder four extends into the groove;
a second servo motor is fixedly installed between the two guide rails and drives the belt to rotate, the belt is sleeved with a sliding block, and the top of the sliding block is connected with the bottom of the bottom plate.
The invention has the beneficial effects that: through the setting of double-walled flaring and double-walled throat, the connection between the bellows of being convenient for, convenient dismantlement through the setting of strengthening rib, is convenient for increase the intensity of bellows simultaneously, improves its life.
Zn-zeolite is selected in the antibacterial master batch and matched with nano zinc oxide powder to construct a nano zinc oxide sterilization system; wherein, Zn-zeolite can be used as an antioxidant of the nano zinc oxide powder, thus improving the lasting effect of the nano zinc oxide powder; the antibacterial master batch has antibacterial active ingredients, such as nano silver ions or zinc ions, so that the corrugated pipe has the antibacterial and bactericidal effects, bacteria on the inner wall of the pipe are prevented from breeding, meanwhile, an antioxidant and an auxiliary antioxidant are added to prevent the antibacterial active ingredients from being rapidly oxidized, the antioxidant capacity is improved, and the antibacterial aging is prolonged; the inorganic nano titanium antibacterial agent takes anatase titanium dioxide crystal material as a main body, and causes bacteria and microbial cells to die through photocatalysis; the problem of pipeline blockage caused by breeding of bacteria and microorganism algae in an HDPE double-wall corrugated pipeline for underground drainage or pollution discharge is reduced; the corrugated pipe in the design is measured by adopting the national standard of GB/T19472.1, the impact performance TIR of the corrugated pipe is less than or equal to 10, the creep ratio is less than or equal to 4, and the corrugated pipe has no leakage, no bubble, no delamination and no cracking;
the first servo motor is driven to drive the screw rod to rotate, the screw rod drives the lifting platform to lift, the fifth air cylinder is driven to lift through the balance rope, the heights of the fifth air cylinder and the clamping disc are adjusted, the first servo motor is convenient to adapt to equipment with different heights, corrugated pipes with different diameters can be fixed through the clamping disc, the practicability is high, various raw materials are added into a feeding hopper, the first servo motor is started, the screw rod is driven to rotate through the coupler, and the corrugated pipes are extruded and molded; then, a servo motor II is driven to drive a belt to rotate, the belt drives a sliding block to move, and further drives a bottom plate to slide on a guide rail, so that a clamping disc and a cylinder V are driven to move, then the cylinder V is driven, the clamping disc is pushed to move through a piston rod until a formed corrugated pipe is inserted into a groove, a cylinder IV is driven, the corrugated pipe is fixed, and then the corrugated pipe is pulled to move rightwards through a stretching mechanism; the corrugated pipe is pulled to move, and is longer, so that the corrugated pipe is prevented from being bent or broken in the forming process;
when the length of the corrugated pipe needs to be cut, the stretching mechanism stops working, the second air cylinder and the third air cylinder are driven simultaneously, the second air cylinder pushes the moving plate to move horizontally, the first clamp is further pushed to move horizontally, the third air cylinder pushes the lifting plate to descend vertically, the second clamp is further pushed to descend, the corrugated pipe is fixed under the action of the first clamp, the second clamp and the third clamp, the corrugated pipe is fixed and cut, the problem that the corrugated pipe shakes in the cutting process to cause poor cutting effect and inaccuracy is avoided, meanwhile, the first clamp, the second clamp and the third clamp can play a certain supporting role in the stretching mechanism in the corrugated pipe movement process, and the corrugated pipes with different diameters can be fixed conveniently; then start driving motor two and the work of cylinder one, driving motor two drives the cutting knife and rotates and cut, and the cylinder drives the connecting rod and goes up and down, under the effect of rocking arm one, rocking arm two, drives the cutting knife and is elevating movement, and then the cutting for under the effect of rocking arm one, rocking arm two, it is more stable that the cutting knife goes up and down, and the cutting effect is better. This former, degree of automation is high, and easy operation conveniently is suitable for the bellows shaping of different diameters, avoids fashioned bellows to damage simultaneously, improves product quality and work efficiency.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall construction of a double-walled bellows according to the present invention;
FIG. 2 is a schematic view of the overall structure of an extruder block according to the present invention;
FIG. 3 is a schematic view of the internal structure of the housing of the present invention;
FIG. 4 is a schematic view of the overall structure of the cutting mechanism of the present invention;
FIG. 5 is a schematic view of the overall structure of the fixing clip of the present invention;
FIG. 6 is a schematic view of the overall structure of the stretching mechanism according to the present invention;
FIG. 7 is a side view of the drawing mechanism of the present invention.
In the figure: 100. a bellows body; 200. double-wall flaring; 300. double-wall necking; 400. reinforcing ribs; 1. a base; 2. driving a motor I; 3. a housing; 4. a feed hopper; 5. a cutting mechanism; 6. fixing the clamp; 7. a stretching mechanism; 8. a coupling; 9. a threaded barrel; 10. a screw; 11. a heater; 51. a first cylinder; 52. a first guide rod; 53. a connecting plate; 54. a support plate; 55. a first rocker arm; 56. a second rocker arm; 57. a cutting knife; 58. a second driving motor; 59. a connecting rod; 61. a first bracket; 62. a lifting plate; 63. moving the plate; 64. a first clamp; 65. a second bracket; 66. a second air cylinder; 67. a third bracket; 68. a third air cylinder; 69. a second clamp; 610. a third clamp; 611. mounting a plate; 71. a guide rail; 72. a fourth bracket; 73. a base plate; 74. a cylinder IV; 75. a groove; 76. clamping the disc; 77. a fifth cylinder; 78. a balancing rope; 79. a second guide rod; 710. a lifting platform; 711. a top plate; 712. a first servo motor; 713. a servo motor II; 714. a belt; 715. a slider; 716. and a roller.
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.
Example 1:
referring to fig. 1 to 7, a polyethylene double-wall corrugated pipe with excellent antibacterial property includes a corrugated pipe body 100, a double-wall flared opening 200, a double-wall necking opening 300, and reinforcing ribs 400; an outward-opened double-wall flared opening 200 is arranged at one end of the corrugated pipe body 100, an inward-contracted double-wall necking 300 is arranged at the other end of the corrugated pipe body 100, three reinforcing ribs 400 are arranged between the double-wall necking 300 and the double-wall flared opening 200 at equal angles, and the double-wall flared opening 200 is matched with the double-wall necking 300;
the corrugated pipe body is prepared from the following raw materials in parts by weight: 105 parts of polyethylene, 7 parts of inorganic nano reinforced powder, 5 parts of toughening agent, 1 part of antibacterial master batch, 1 part of inorganic nano titanium antibacterial agent, 0.5 part of antioxidant, 0.2 part of auxiliary antioxidant, 1 part of lubricant, 2 parts of crosslinking agent and 2 parts of nano zinc oxide powder raw material.
The outer wall of the corrugated pipe body 100 is in a trapezoidal hollow structure arranged at equal intervals, and has high strength and high external pressure resistance.
The inner wall of the double-walled flaring 200 is provided with internal threads, the outer wall of the double-walled necking 300 is provided with external threads, and the internal threads are meshed with the external threads.
The lubricant is pentaerythritol stearate; the cross-linking agent is di-tert-butyl peroxide.
The antibacterial master batch comprises 50 parts by weight of thermoplastic resin; 15 parts by weight of Zn-A zeolite; 15 parts by weight of a mildew preventive;0.4 parts by weight of a coupling agent; 0.2 parts by weight of an auxiliary agent; 3 parts by weight of liquid paraffin.
The preparation method of the corrugated pipe comprises the following steps:
weighing 105 parts of polyethylene, 7 parts of inorganic nano reinforcing powder, 5 parts of toughening agent, 1 part of antibacterial master batch, 1 part of inorganic nano titanium antibacterial agent, 0.5 part of antioxidant, 0.2 part of auxiliary antioxidant, 1 part of lubricant, 2 parts of cross-linking agent and 2 parts of nano zinc oxide powder raw materials in parts by weight, mixing the raw materials, putting the mixture into an internal mixer, carrying out internal mixing at 190 ℃, carrying out extrusion granulation, putting the granulated material into a feeding hopper 4 in a single-screw extruder set, starting a driving motor I2, driving a screw 10 to rotate through a coupler 8, and carrying out extrusion molding on a corrugated pipe;
step two, driving a servo motor 713 to drive a belt 714 to rotate, driving a sliding block 715 to move by the belt 714, further driving a bottom plate 73 to slide on a guide rail 71, further driving a clamping disc 76 and a cylinder five 77 to move, then driving the cylinder five 77, pushing the clamping disc 76 to move through a piston rod until the formed corrugated pipe is inserted into the groove 75, and then pulling the corrugated pipe to move through a stretching mechanism 7;
step three, when the length of the corrugated pipe needs to be cut, the stretching mechanism 7 stops working, the second air cylinder 66 and the third air cylinder 68 are driven simultaneously, the second air cylinder 66 pushes the moving plate 63 to move horizontally, the first clamp 64 is pushed to move horizontally, the third air cylinder 68 pushes the lifting plate 62 to descend vertically, the second clamp 69 is pushed to descend, and the corrugated pipe is fixed under the action of the first clamp 64, the second clamp 69 and the third clamp 610; then, the second driving motor 58 and the first cylinder 51 are started to work, the second driving motor 58 drives the cutting knife 57 to rotate for cutting, the first cylinder 51 drives the connecting rod 59 to ascend and descend, and the cutting knife 57 is driven to ascend and descend under the action of the first rocker arm 55 and the second rocker arm 56, so that cutting is performed.
The working steps of the extruding unit are as follows:
step one, a servo motor I712 is driven to drive a screw rod to rotate, the screw rod drives a lifting platform 710 to lift, then a balance rope 78 drives a cylinder five 77 to lift, the heights of the cylinder five 77 and a clamping disc 76 are adjusted, then various raw materials are added into a feeding hopper 4, a driving motor I2 is started, a coupling 8 drives a screw rod 10 to rotate, and the corrugated pipe is extruded and molded;
step two, then driving a servo motor 713 to drive a belt 714 to rotate, driving a sliding block 715 to move by the belt 714, further driving a bottom plate 73 to slide on a guide rail 71, further driving a clamping disc 76 and a cylinder five 77 to move, then driving the cylinder five 77, pushing the clamping disc 76 to move through a piston rod until the formed corrugated pipe is inserted into the groove 75, and then pulling the corrugated pipe to move through a stretching mechanism 7;
step three, when the length of the corrugated pipe needs to be cut, the stretching mechanism 7 stops working, the second air cylinder 66 and the third air cylinder 68 are driven simultaneously, the second air cylinder 66 pushes the moving plate 63 to move horizontally, the first clamp 64 is pushed to move horizontally, the third air cylinder 68 pushes the lifting plate 62 to descend vertically, the second clamp 69 is pushed to descend, and the corrugated pipe is fixed under the action of the first clamp 64, the second clamp 69 and the third clamp 610; then, the second driving motor 58 and the first cylinder 51 are started to work, the second driving motor 58 drives the cutting knife 57 to rotate for cutting, the first cylinder 51 drives the connecting rod 59 to ascend and descend, and the cutting knife 57 is driven to ascend and descend under the action of the first rocker arm 55 and the second rocker arm 56, so that cutting is performed.
Example 2:
the preparation method of the corrugated pipe comprises the following steps:
weighing 100 parts of polyethylene, 7 parts of inorganic nano reinforcing powder, 2 parts of toughening agent, 1 part of antibacterial master batch, 1 part of inorganic nano titanium antibacterial agent, 0.3 part of antioxidant, 0.2 part of auxiliary antioxidant, 1 part of lubricant, 1 part of cross-linking agent and 1 part of nano zinc oxide powder raw material in parts by weight, mixing the raw materials, putting the mixture into an internal mixer, carrying out internal mixing at 160 ℃, carrying out extrusion granulation, putting the granulated material into a feeding hopper 4 in a single-screw extruder set, starting a driving motor I2, driving a screw 10 to rotate through a coupler 8, and carrying out extrusion molding on a corrugated pipe;
step two and step three are the same as example 1.
Example 3:
the preparation method of the corrugated pipe comprises the following steps:
firstly, weighing 105 parts of polyethylene, 9 parts of inorganic nano reinforced powder, 5 parts of toughening agent, 3 parts of antibacterial master batch, 2 parts of inorganic nano titanium antibacterial agent, 0.5 part of antioxidant, 0.3 part of auxiliary antioxidant, 2 parts of lubricant, 2 parts of cross-linking agent and 2 parts of nano zinc oxide powder raw materials in parts by weight, mixing the raw materials, putting the mixture into an internal mixer, carrying out internal mixing at 190 ℃, carrying out extrusion granulation, putting the granulated material into a feeding hopper 4 in a single-screw extruder set, starting a driving motor I2, driving a screw 10 to rotate through a coupler 8, and carrying out extrusion molding on a corrugated pipe;
step two and step three are the same as example 1.
The corrugated pipe in the design is measured by adopting the national standard of GB/T19472.1, and the results are as follows:
| item | Index (I) |
| Ring stiffness, KM/m2 | SN4≥4、SN8≥8、SN10≥10、SN12.5≥12.5 |
| Impact performance of% | TIR≤10 |
| Flexibility of the ring | Smooth pipeline, no reverse bending, no cracking and no separation of two walls |
| Oven test | No bubble, no delamination, no cracking |
| Creep ratio | ≤4 |
| System tightness | Without leakage |
The extruder set comprises a base 1, a first driving motor 2, a cutting mechanism 5, a fixed clamp 6 and a stretching mechanism 7, wherein the first driving motor 2 is fixedly installed at one end of the top of the base 1, an output shaft of the first driving motor 2 is connected with a screw rod 10 through a coupler 8, a threaded cylinder 9 is arranged outside the screw rod 10, a shell 3 is installed outside the threaded cylinder 9, four heaters 11 are fixedly installed at the top of the base 1 and below the threaded cylinder 9, a feeding hopper 4 is fixedly installed at the top of the shell 3, the cutting mechanism 5 is fixedly installed at the top of the base 1, the cutting mechanism 5 is located on one side, far away from the first driving motor 2, of the threaded cylinder 9, the fixed clamp 6 is fixedly installed at the other side of the cutting mechanism 5, and the stretching mechanism 7 is arranged at the other side of the fixed clamp 6;
the cutting mechanism 5 comprises a first air cylinder 51 and a second driving motor 58, the first air cylinder 51 is obliquely arranged on the top of the base 1 and is convenient for driving the cutting knife 57 to reciprocate in the vertical direction through the first rocker arm and the second rocker arm to lift and cut, the end part of a piston rod of the first air cylinder 51 is connected with the center of a horizontally arranged connecting rod 59, two ends of the connecting rod 59 are movably connected with a first rocker arm 55, an angle of 30-60 degrees is formed between the first rocker arm 55 and the connecting rod 59, the first rocker arm 55 and the second rocker arm 56 are convenient for driving the cutting knife 57 to move, the second rocker arm 56 is arranged at the other end of the first rocker arm 55, the second rocker arm 56 is rotatably connected with a supporting plate 54, the supporting plate 54 is vertically arranged on the top of the base 1, the supporting plate 54 has a supporting function and ensures that the whole device can completely operate, the other, the cutting knife 57 is arranged perpendicular to the corrugated pipe, so that the corrugated pipe can be conveniently cut; the two sides of the first cylinder 51 are symmetrically and parallelly provided with connecting plates 53, the connecting plates 53 are movably connected with first guide rods 52, and the tops of the first guide rods 52 are connected with the first guide rods 52 through Y joints, so that the first guide rods 52 can guide the workpiece more stably;
the fixing clamp 6 comprises a first support 61 and a third support 67, wherein the first supports 61 are vertically arranged at the top of the base 1, an installation plate 611 is horizontally arranged at the top of the first supports 61, and a plurality of clamps 610 are uniformly arranged on one side of the installation plate 611; the two supports 65 are vertically arranged at the top of the base 1, the two cylinders 66 are horizontally arranged at the top of the two supports 65, the moving plate 63 is fixedly arranged at the end part of a piston rod of each cylinder 66, a plurality of first clamps 64 are uniformly arranged on the other side of the moving plate 63, the first clamps 64 are symmetrically arranged with the third clamps 610, the third support 67 is vertically arranged at the top of the two supports 65, the three cylinders 68 are vertically arranged on the third support 67, the lifting plate 62 is fixedly arranged at the bottom of a piston rod of each cylinder 68, the second clamps 69 are vertically and uniformly arranged at the bottom of the lifting plate 62, the first clamps 64, the second clamps 69 and the third clamps 610 are all arc-shaped structures and are conveniently matched with and fixed on the corrugated pipe, rubber pads are arranged on one sides of the first clamps 64, the second clamps 69 and the third clamps 610, so that the corrugated pipe is protected from being damaged, the service life of the device is prolonged; meanwhile, the first clamp 64, the second clamp 69 and the third clamp 610 are convenient for fixing corrugated pipes with different diameters, and the use is convenient;
the stretching mechanism 7 comprises a guide rail 71 and four brackets 72, wherein the two guide rails 71 are fixedly installed at the top of the base 1 vertically, the two guide rails 71 are arranged in parallel, the guide rail 71 is connected with a roller 716 in a sliding manner, the roller 716 can slide on the guide rail 71 conveniently, the roller 716 is installed at four corners of the bottom plate 73, the four brackets 72 are fixedly installed at the top of the bottom plate 73, a top plate 711 is fixedly installed at the top of the four brackets 72, a first servo motor 712 is vertically installed at the center of the top plate 711, an output shaft of the first servo motor 712 penetrates through the top plate 711 and is connected with a screw rod, the screw rod penetrates through the lifting platform 710 and is in threaded connection with the lifting platform 710, two guide rods 79 are vertically installed at four corners of the bottom of the top plate 711, the two guide rods 79 penetrate through the lifting platform 710, the lifting platform 710 is ensured to be lifted more stably, and the bottom of the second guide rod 79 is fixedly provided with a limiting block, so that a good limiting effect is achieved; the two ends of the top of the lifting platform 710 are fixedly provided with balance ropes 78, the balance ropes 78 are obliquely arranged, the other ends of the balance ropes 78 are connected with a fifth cylinder 77, the fifth cylinder 77 is parallel to the guide rail 71, two sides of the fifth cylinder 77 are slidably connected with a fourth support 72, the fifth cylinder 77 is ensured to lift more stably through the balance ropes 78 and the sliding arrangement, a clamping disc 76 is fixedly arranged at the end part of a piston rod of the fifth cylinder 77, a circular groove 75 is formed in the other surface of the clamping disc 76, the circular groove 75 is matched with a corrugated pipe to facilitate corrugated pipe fixing, the four sides of the clamping disc 76 are provided with a fourth cylinder 74, and the piston rod of the fourth cylinder 74 extends into the groove 75 to facilitate corrugated pipe fixing;
a second servo motor 713 is fixedly installed between the two guide rails 71, the second servo motor 713 drives the belt 714 to rotate, a sliding block 715 is sleeved on the belt 714, and the top of the sliding block 715 is connected with the bottom of the bottom plate 73.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (6)
1. A preparation method of a polyethylene double-wall corrugated pipe with excellent antibacterial property is characterized by comprising the following steps:
weighing 105 parts of polyethylene, 7-9 parts of inorganic nano reinforcing powder, 2-5 parts of toughening agent, 1-3 parts of antibacterial master batch, 1-2 parts of inorganic nano titanium antibacterial agent, 0.3-0.5 part of antioxidant, 0.2-0.3 part of auxiliary antioxidant, 1-2 parts of lubricant, 1-2 parts of cross-linking agent and 1-2 parts of nano zinc oxide powder raw materials in parts by weight, mixing the raw materials, putting the mixture into an internal mixer, carrying out internal mixing at 190 ℃ of 160 ℃., extruding and granulating, putting the granulated material into a feeding hopper (4) in a single screw extruder, starting a driving motor I (2), driving a screw (10) to rotate through a coupler (8), and extruding and molding a corrugated pipe;
step two, driving a servo motor II (713) to drive a belt (714) to rotate, driving a sliding block (715) to move by the belt (714), further driving a bottom plate (73) to slide on a guide rail (71), further driving a clamping disc (76) and a cylinder five (77) to move, then driving the cylinder five (77), pushing the clamping disc (76) to move through a piston rod until the formed corrugated pipe is inserted into the groove (75), and then pulling the corrugated pipe to move through a stretching mechanism (7);
step three, when the length of the corrugated pipe needs to be cut, the stretching mechanism (7) stops working, a second air cylinder (66) and a third air cylinder (68) are driven simultaneously, the second air cylinder (66) pushes the moving plate (63) to move horizontally, the first clamp (64) is further pushed to move horizontally, the third air cylinder (68) pushes the lifting plate (62) to descend vertically, the second clamp (69) is further pushed to descend, and the corrugated pipe is fixed under the action of the first clamp (64), the second clamp (69) and the third clamp (610); then, a driving motor II (58) and a cylinder I (51) are started to work, the driving motor II (58) drives the cutting knife (57) to rotate for cutting, the cylinder I (51) drives the connecting rod (59) to lift, and the cutting knife (57) is driven to lift under the action of the rocker arm I (55) and the rocker arm II (56) so as to cut;
the extruder set comprises a base, a first driving motor, a cutting mechanism, a fixed clamp and a stretching mechanism, wherein the first driving motor is fixedly installed at one end of the top of the base, an output shaft of the first driving motor is connected with a screw rod through a coupler, a threaded cylinder is arranged outside the screw rod, a shell is installed outside the threaded cylinder, four heaters are fixedly installed at the top of the base and below the threaded cylinder, a feeding hopper is fixedly installed at the top of the shell, the cutting mechanism is fixedly installed at the top of the base, the cutting mechanism is located on one side, far away from the first driving motor, of the threaded cylinder, the fixed clamp is fixedly installed at the other side of the cutting mechanism, and the stretching mechanism is arranged at the other side of the fixed clamp;
the cutting mechanism comprises a first air cylinder and a second driving motor, the first air cylinder is obliquely arranged on the top of the base, the end part of a piston rod of the first air cylinder is connected with the center of a horizontally arranged connecting rod, two ends of the connecting rod are movably connected with a first rocker arm, the other end of the first rocker arm is provided with a second rocker arm, the second rocker arm is rotatably connected with a supporting plate, the supporting plate is vertically arranged on the top of the base, the other end of the second rocker arm is connected with the second driving motor, the second driving motor drives a cutting knife to rotate, and the cutting knife is vertically arranged with the corrugated pipe; connecting plates are symmetrically arranged on two sides of the first air cylinder, a first guide rod is movably connected to each connecting plate, and the top of each first guide rod is connected with the corresponding first guide rod through a Y-shaped joint;
the fixing clamp comprises a first support and a third support, a plurality of first supports are vertically arranged on the top of the base, an installation plate is horizontally arranged on the top of the first supports, and a plurality of third clamps are uniformly arranged on one side of the installation plate; the lifting plate is vertically arranged on the bottom of a piston rod of the cylinder III, a plurality of lifting plates are vertically and uniformly arranged on the bottom of the lifting plate, the clamps I, the clamps II and the clamps III are all arc-shaped structures, and rubber pads are arranged on one sides of the clamps I, the clamps II and the clamps III;
the stretching mechanism comprises guide rails and four supports, the two guide rails are fixedly installed vertically on the top of the base and are arranged in parallel, the guide rails are connected with the rollers in a sliding mode, the rollers are installed at four corners of the bottom plate, the four supports are fixedly installed at the top of the bottom plate, a top plate is fixedly installed at the tops of the four supports, a first servo motor is vertically installed at the center of the top plate, an output shaft of the first servo motor penetrates through the top plate and is connected with a lead screw, the lead screw penetrates through the lifting platform and is in threaded connection with the lifting platform, two guide rods are vertically installed at four corners of the bottom of the top plate, the two guide rods penetrate through the lifting platform, and a limiting block is fixedly installed at the bottoms of the; the two ends of the top of the lifting platform are fixedly provided with balance ropes, the balance ropes are obliquely arranged, the other ends of the balance ropes are connected with a cylinder five, the cylinder five is arranged in parallel with the guide rail, the two sides of the cylinder five are slidably connected with a support frame four, the end part of a piston rod of the cylinder five is fixedly provided with a clamping disc, the other side of the clamping disc is provided with a circular groove, the periphery of the clamping disc is provided with a cylinder four, and a piston rod of the cylinder four extends into the groove;
a second servo motor is fixedly installed between the two guide rails and drives the belt to rotate, the belt is sleeved with a sliding block, and the top of the sliding block is connected with the bottom of the bottom plate.
2. A polyethylene double-wall corrugated pipe with excellent antibacterial property is characterized by comprising a corrugated pipe body (100), double-wall flaring openings (200), double-wall necking openings (300) and reinforcing ribs (400); one end of the corrugated pipe body (100) is provided with a double-wall flared opening (200) which is flared outwards, the other end of the corrugated pipe body (100) is provided with a double-wall necking opening (300) which is shrunk inwards, three reinforcing ribs (400) are arranged between the double-wall necking opening (300) and the double-wall flared opening (200) at equal angles, and the double-wall flared opening (200) is matched with the double-wall necking opening (300);
the corrugated pipe body is prepared from the following raw materials in parts by weight: 100 portions of 105 portions of polyethylene, 7 to 9 portions of inorganic nano reinforcing powder, 2 to 5 portions of toughening agent, 1 to 3 portions of antibacterial master batch, 1 to 2 portions of inorganic nano titanium antibacterial agent, 0.3 to 0.5 portion of antioxidant, 0.2 to 0.3 portion of auxiliary antioxidant, 1 to 2 portions of lubricant, 1 to 2 portions of cross-linking agent and 1 to 2 portions of nano zinc oxide powder;
wherein the polyethylene double-wall corrugated pipe is prepared by the preparation method of the polyethylene double-wall corrugated pipe with excellent antibacterial property according to claim 1.
3. The polyethylene double-wall corrugated pipe with excellent antibacterial property according to claim 2, wherein the outer wall of the corrugated pipe body (100) is arranged equidistantly and has a trapezoidal hollow structure.
4. The polyethylene double-wall corrugated pipe with excellent antibacterial property according to claim 2, wherein the inner wall of the double-wall flaring (200) is provided with an internal thread, the outer wall of the double-wall necking (300) is provided with an external thread, and the internal thread is meshed with the external thread.
5. The polyethylene double-wall corrugated pipe with excellent antibacterial property as claimed in claim 2, wherein the lubricant is pentaerythritol stearate; the cross-linking agent is di-tert-butyl peroxide.
6. The polyethylene double-wall corrugated pipe with excellent antibacterial property according to claim 2, wherein the antibacterial masterbatch is prepared from 50 to 85 parts by weight of a thermoplastic resin; 5-15 parts by weight of Zn-A zeolite; 5-15 parts by weight of a mildew inhibitor; 0.2-0.4 parts by weight of a coupling agent; 0.05-0.2 weight parts of auxiliary agent; 2-3 parts of liquid paraffin.
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| CN113563654A (en) * | 2021-06-21 | 2021-10-29 | 安徽杰蓝特新材料有限公司 | High-strength antibacterial PE double-wall corrugated pipe and processing technology thereof |
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