CN114801269A - Preparation method and detection equipment of MPVE corrugated pipe with high extrusion resistance characteristic - Google Patents
Preparation method and detection equipment of MPVE corrugated pipe with high extrusion resistance characteristic Download PDFInfo
- Publication number
- CN114801269A CN114801269A CN202110123958.XA CN202110123958A CN114801269A CN 114801269 A CN114801269 A CN 114801269A CN 202110123958 A CN202110123958 A CN 202110123958A CN 114801269 A CN114801269 A CN 114801269A
- Authority
- CN
- China
- Prior art keywords
- pair
- pipe
- operating platform
- frame
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 64
- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 19
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 19
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 238000007493 shaping process Methods 0.000 claims abstract description 15
- 238000004806 packaging method and process Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 57
- 230000000670 limiting effect Effects 0.000 claims description 49
- 238000003825 pressing Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 17
- 239000000725 suspension Substances 0.000 claims description 17
- 235000021355 Stearic acid Nutrition 0.000 claims description 16
- 239000002274 desiccant Substances 0.000 claims description 16
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 16
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 16
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 16
- 239000008117 stearic acid Substances 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 14
- 239000004595 color masterbatch Substances 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 11
- 239000000155 melt Substances 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000009778 extrusion testing Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000008520 organization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004642 transportation engineering Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a preparation method of an MPVE corrugated pipe with high extrusion resistance, which comprises the following operation steps: step S1, preparing raw materials; step S2, mixing the raw materials; step S3, dosing; step S4, extrusion molding; step S5, cooling and shaping; step S6, cutting the pipe; step S7, extrusion detection; and step S8, packaging and leaving factory, wherein the production of the MPVE corrugated pipe is carried out by the ratio of the grafted polyethylene resin to the polyvinyl chloride resin, the high extrusion resistance characteristic of the produced pipe is detected, during the detection, the auxiliary feeding mechanism is used for automatically feeding the sample pipe, the sample pipe can be automatically fed onto the operation table, the extrusion test of the pipe is carried out by the extrusion testing mechanism on the operation table, the test result is collected, the structure is simple, and the automation degree is high.
Description
Technical Field
The invention relates to the technical field of MPVE corrugated pipes, in particular to a preparation method and detection equipment of an MPVE corrugated pipe with high extrusion resistance.
Background
At present, a large-caliber pipeline applied to buried drainage and pollution discharge is various and has use defects, such as a PVC-U double-wall corrugated pipe, poor low-temperature brittleness and limitation of the caliber of a product to 600 mm; the PE double-wall corrugated pipe has low rigidity, is easy to deform, has large backfill engineering quantity and is easy to cause road collapse; the concrete pipe has short service life, easy corrosion and leakage and large installation and transportation engineering quantity; the steel pipe is high in cost, easy to corrode and large in installation and transportation engineering quantity, and in view of the problems, the scheme is generated by deep research aiming at the problems.
Disclosure of Invention
The invention aims to solve the problems, designs a preparation method and detection equipment of the MPVE corrugated pipe with high extrusion resistance, solves the problems that the existing large-caliber blow-off pipe is poor in low-temperature brittleness, low in rigidity, easy to deform, large in backfill engineering amount and easy to cause road collapse and the like, and can quantitatively detect the high extrusion resistance of the MPVE corrugated pipe through the detection equipment so as to judge the toughness and the strength of the MPVE corrugated pipe.
The technical scheme of the invention for realizing the aim is as follows: the preparation method of the MPVE corrugated pipe with high extrusion resistance comprises the following operation steps: step S1, preparing raw materials; step S2, mixing the raw materials; step S3, dosing; step S4, extrusion molding; step S5, cooling and shaping; step S6, cutting the pipe; step S7, extrusion detection; step S8, packaging and leaving factory;
step S1: preparing raw materials of the outer wall pipe: 35-45% of grafted polyethylene resin, 40-50% of polyvinyl chloride resin, 3-4% of recycled materials, 6-8% of fixed fillers, 3-4% of stearic acid, 3-6% of drying agents, 3-5% of dark green color master batches and 5-7% of talcum powder; preparing inner wall tube raw materials: 33-47% of grafted polyethylene resin, 35-45% of polyvinyl chloride resin, 3-4% of recycled materials, 6-8% of fixed fillers, 3-4% of stearic acid, 3-6% of drying agents, 3-5% of dark green color master batches and 5-7% of talcum powder;
step S2: respectively mixing the outer wall pipe raw material and the inner wall pipe raw material, and putting the raw material prepared in the step S1 into a double mixer for mixing, wherein the raw material is divided into an inner material and an outer material;
step S3: forcibly feeding materials into the feeding machines regularly and quantitatively by a vacuum feeding machine, wherein the rotating speed of the feeding machines is set to be 24-28 r/min, the two feeding machines are used for continuously feeding materials, and the set weight is 260-280 kg/h;
step S4: putting the mixed materials into a double-cone double-screw extruder, wherein the rotating speed control range is as follows: the outer wall pipe is 29-32 r/min, the inner wall pipe is 18-22 r/min, the melt mixed material is extruded through an extrusion die at the temperature of 200-210 ℃ and the melt pressure of 19MPa, the extrusion die is divided into an inner opening die and an outer opening die, the inner opening die and the outer opening die are provided with adjusting screws, and the wall thickness is adjusted according to requirements;
step S5: controlling and shaping traction on the extruded and molded tube blank on a forming machine in a segmented mode, simultaneously carrying out a flaring molding process, wherein the flaring starting length is 90-110mm, the flaring ending length is 340-360mm, the forming machine is provided with at least eight segments of molding processes, the molding speed is set between 500-6000mm, the speed range is 95-100m/s, and cooling and shaping are carried out on the molded pipeline through a cooling machine;
step S6: cutting the formed corrugated pipe material by a cutting machine, and stacking the cut corrugated pipe material after the cutting is finished;
step S7: randomly picking a certain number of corrugated pipes from the produced corrugated pipes, and detecting the high extrusion resistance characteristics of the corrugated pipes through detection equipment;
step S8: packaging the finished product and leaving the factory after the corrugated pipe is detected to be qualified;
selecting outer wall pipe raw materials, wherein the proportion of grafted polyethylene resin is 37%, the proportion of polyvinyl chloride resin is 40%, the proportion of recycled materials is 3%, the proportion of fixed fillers is 6%, the proportion of stearic acid is 3%, the proportion of drying agents is 3%, the proportion of dark green color master is 3% and the proportion of talcum powder is 5%; selecting outer wall pipe raw materials, wherein the proportion of grafted polyethylene resin is 35%, the proportion of polyvinyl chloride resin is 42%, the proportion of recycled materials is 3%, the proportion of fixed fillers is 6%, the proportion of stearic acid is 3%, the proportion of drying agents is 3%, the proportion of dark green color master is 3% and the proportion of talcum powder is 5%.
In the step S3, the rotating speed of the feeders is set to be 25 r/min, the two feeders are used for continuous feeding, and the set weight is 260 kg/h.
And S4, putting the mixed materials into a double-cone double-screw extruder, and controlling the rotating speed of the double-cone double-screw extruder, wherein the outer wall pipe is 30 revolutions per minute, and the inner wall pipe is 20 revolutions per minute.
In step S5, the flaring start length is 90mm, and the flaring end length is 340 mm.
The detection equipment for the MPVE corrugated pipe with the high extrusion resistance characteristic comprises a support frame and an operating platform, wherein the operating platform is arranged on the support frame, an auxiliary feeding mechanism is arranged on one side of the operating platform, an auxiliary fixing mechanism is arranged on the operating platform, and a pressure testing mechanism is arranged above the auxiliary fixing mechanism;
the supplementary feed mechanism includes: the device comprises a conveying belt, a grabbing control structure and a pushing feeding structure;
the conveying belt is arranged on one side of the operating platform, the grabbing control structure is arranged on one end of the conveying belt, and the pushing and feeding structure is arranged on one end of the conveying belt and is connected with the grabbing control structure;
the propelling feeding structure comprises a pair of pushing parts with the same structure, the pushing parts are arranged on the two side wall surfaces of the operating platform respectively, and the pushing parts comprise: the fixing frame, the first hydraulic cylinder and the connecting block;
the fixed frame is arranged on the side wall of the conveying belt, the first hydraulic cylinder is arranged in the fixed frame along the horizontal direction, the movable end extends out of the fixed frame, and the connecting block is embedded on the movable end of the first hydraulic cylinder;
the grabbing control structure comprises a pair of grabbing parts with the same structure, and the grabbing parts are respectively arranged on the pair of pushing parts and connected with the connecting block; the grasping portion includes: the auxiliary frame, the first electric push rod and the pneumatic clamping jaw;
the auxiliary frame is arranged on the connecting block, the first electric push rod is arranged on the auxiliary frame along the horizontal direction, and the pneumatic clamping jaw is embedded on the movable end of the first electric push rod.
The auxiliary fixing mechanism includes: the overturning clamping structure and the auxiliary discharging structure are arranged;
the overturning clamping structure comprises a pair of overturning limiting parts with the same structure, and the pair of overturning limiting parts are respectively arranged on the operating platform and correspond to each other in position; a pair of rectangular grooves with the same structure are formed in the operating platform, and the positions of the rectangular grooves correspond to those of the operating platform; the overturning limiting assembly is embedded in the rectangular groove;
the spacing subassembly of upset includes: the first servo motor, the rotating wheel and the arc-shaped buckle plate;
the first servo motor is arranged in the rectangular groove, the rotating wheel is embedded on the driving end of the first servo motor, and one end of the arc-shaped pinch plate is embedded on the rotating wheel and is positioned in the rectangular groove;
the auxiliary discharging structure comprises a pair of pushing discharging parts with the same structure, a pair of square through holes with the same structure are formed in the lower end face of the operating platform, and the pair of pushing discharging parts are respectively embedded in the pair of square through holes; the top pushes away the portion of unloading and includes: the suspension, the second electric push rod, the second hydraulic cylinder and the push plate;
the suspension is embedded in the square through hole, the upper end of the suspension is fixedly connected with the operating platform, the second electric push rod is arranged in the suspension along the vertical direction, the second hydraulic cylinder is arranged on the movable end of the second electric push rod along the horizontal direction, and the push plate is embedded on the movable end of the second hydraulic cylinder.
The extrusion test mechanism includes: the device comprises a door-shaped frame, a moving plate, a pressing plate, a power control structure and a data measurement structure;
the door-shaped frame is arranged on the operating table, the movable plate is arranged on the door-shaped frame and is movably connected with the inner walls of two sides of the door-shaped frame, the pressing plate is arranged in the door-shaped frame and is positioned below the movable plate, the power control structures are arranged on two ends of the door-shaped frame and are respectively connected with the movable plate and the pressing plate, and the data measurement structure is arranged on the pressing plate;
the power control structure includes: a pair of limit sliding parts and a lifting control part with the same structure; the pair of limiting sliding parts are respectively arranged on the inner side wall surface of the door-shaped frame and connected with the moving plate, and the lifting control part is arranged on the lower side of the operating platform, penetrates through the operating platform and is connected with the moving plate and the pressing plate;
the limiting sliding part comprises a sliding groove and a sliding block, the sliding groove is embedded on the inner side wall surface of the door-shaped frame, and the sliding block is sleeved in the sliding groove and connected with the moving plate.
The lift control portion includes: the device comprises a second servo motor, a bracket, a rotating shaft, a pair of first bevel gears with the same structure and a pair of thread rotating assemblies with the same structure;
the second servo motor is arranged on the lower side wall surface of the operating platform, the support is arranged on the lower side wall surface of the operating platform and located on one side of the second servo motor, the rotating shaft is sleeved in the support, the pair of first bevel gears are respectively embedded on two ends of the rotating shaft, and the pair of thread rotating assemblies respectively penetrate through the operating platform, the pressing plate and the moving plate and are respectively movably connected with the pair of first bevel gears;
the screw thread rotating assembly includes: the rotating shaft, the second bevel gear, the first thread sleeve, the telescopic rod and the threaded rod are arranged on the rotating shaft;
the axis of rotation run through in the operation panel, the second bevel gear inlay dress in on the axis of rotation lower extreme, and with first bevel gear meshes mutually, first thread bush inlay dress in on the movable plate, telescopic link one end install in on the movable plate downside wall, and the other end with the clamp plate is connected, the threaded rod spiral run through in first thread bush, the threaded rod lower extreme with the axis of rotation is connected, the threaded rod upper end with door type frame downside wall swing joint.
The data measurement structure includes: a pressure measuring unit and a height measuring unit; the pressure measuring part is arranged on the pressure plate and connected with the lower side wall surface of the moving plate, and the height measuring part is arranged on the side wall of the pressure plate;
the pressure measurement section includes: the device comprises a pressure sensor, a signal collection module and a signal transmitting module;
the pressure sensor is arranged on the pressing plate and is in contact with the lower side wall surface of the moving plate, the signal collecting module is arranged on the pressing plate and is connected with the pressure sensor, and the signal transmitting module is arranged on one side of the signal collecting module and is connected with the signal collecting module;
the height measuring section includes: the device comprises a limiting frame, a limiting roller and a measuring scale;
the limiting frame is arranged on the side wall of the pressing plate, the limiting roller is embedded in the limiting frame, two ends of the limiting roller are respectively movably connected with the limiting frame, and the measuring ruler is inserted in the limiting frame and is attached to the limiting roller.
The MPVE corrugated pipe with high extrusion resistance and the detection equipment thereof are produced by the technical proposal of the invention, the production of the MPVE corrugated pipe is carried out by the ratio of the grafted polyethylene resin and the polyvinyl chloride resin, and the detection of the high extrusion resistance of the produced pipe is carried out, during the detection, an auxiliary feeding mechanism is used for automatically feeding the sample pipe, the sample pipe can be automatically fed onto an operation table, and the pipe to be detected is auxiliarily fixed by matching with an auxiliary fixing mechanism on the operation table, thereby reducing the influence of the shaking deviation of the pipe on the test result in the extrusion test process, and the pipe is extruded and tested by an extrusion testing mechanism on the operation table, and the test result is collected and processed, the structure is simple, the automation degree is high, the produced MPVE corrugated pipe is good in toughness and large in strength, the problems that an existing large-diameter blow-off pipe is poor in low-temperature brittleness, low in rigidity, easy to deform, large in backfill engineering quantity and easy to cause road collapse and the like are solved, and the high extrusion resistance characteristic of the MPVE corrugated pipe can be quantitatively detected through the detection equipment, so that the toughness and the strength of the MPVE corrugated pipe are judged.
Drawings
Fig. 1 is a schematic front view structure diagram of the manufacturing method of the MPVE corrugated tube with high extrusion resistance and the detection device according to the present invention.
Fig. 2 is a schematic front view cross-sectional structure diagram of the method for manufacturing the MPVE corrugated tube with high extrusion resistance and the detection equipment according to the present invention.
Fig. 3 is a schematic side view of the testing apparatus and the method for manufacturing the MPVE corrugated tube with high extrusion resistance according to the present invention.
Fig. 4 is a schematic side view of a sectional structure of an MPVE corrugated tube with high extrusion resistance and a detection apparatus according to the present invention.
Fig. 5 is a schematic top view of the inspection equipment and the method for manufacturing the MPVE corrugated tube with high extrusion resistance according to the present invention.
Fig. 6 is a schematic diagram of a partially enlarged structure of the detection apparatus and the method for manufacturing the MPVE corrugated tube with high extrusion resistance according to the present invention.
Fig. 7 is a schematic view of an enlarged structure of a position a of the detection device and the method for manufacturing the MPVE corrugated tube with high extrusion resistance according to the present invention.
Fig. 8 is a schematic view of a b-position enlarged structure of the detection device and the method for manufacturing the MPVE corrugated tube with high extrusion resistance according to the present invention.
Fig. 9 is a schematic view of a c-position enlarged structure of the detection device and the method for manufacturing the MPVE corrugated tube with high extrusion resistance according to the present invention.
Fig. 10 is a schematic structural diagram of the manufacturing method of the MPVE corrugated tube with high extrusion resistance and the pressing state of the extrusion testing mechanism of the testing apparatus according to the present invention.
In the figure: 1-a support frame; 2-an operation table; 3-a conveyor belt; 4-a fixing frame; 5-a first hydraulic cylinder; 6-connecting blocks; 7-an auxiliary frame; 8-a first electric push rod; 9-a pneumatic clamping jaw; 10-a first servo motor; 11-a rotating wheel; 12-an arc buckle plate; 13-a suspension; 14-a second electric push rod; 15-a second hydraulic cylinder; 16-a push plate; 17-a gantry; 18-moving the plate; 19-pressing plate; 20-a second servo motor; 21-a scaffold; 22-a rotating shaft; 23-a first bevel gear; 24-a rotating shaft; 25-a second bevel gear; 26-a first threaded sleeve; 27-a second threaded sleeve; 28-threaded rod; 29-a pressure sensor; 30-a signal collection module; 31-a signal transmitting module; 32-a limiting frame; 33-a spacing roller; 34-measuring scale.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, and as shown in fig. 1 to 10, a method for manufacturing an MPVE corrugated tube with high extrusion resistance characteristics includes the following steps: step S1, preparing raw materials; step S2, mixing the raw materials; step S3, dosing; step S4, extrusion molding; step S5, cooling and shaping; step S6, cutting the pipe; step S7, extrusion detection; step S8, packaging and leaving factory; step S1: preparing raw materials of the outer wall pipe: 35-45% of grafted polyethylene resin, 40-50% of polyvinyl chloride resin, 3-4% of recycled materials, 6-8% of fixed fillers, 3-4% of stearic acid, 3-6% of drying agents, 3-5% of dark green color master batches and 5-7% of talcum powder; preparing inner wall tube raw materials: 33-47% of grafted polyethylene resin, 35-45% of polyvinyl chloride resin, 3-4% of recycled materials, 6-8% of fixed fillers, 3-4% of stearic acid, 3-6% of drying agents, 3-5% of dark green color master batches and 5-7% of talcum powder; step S2: respectively mixing the outer wall pipe raw material and the inner wall pipe raw material, and putting the raw material prepared in the step S1 into a double mixer for mixing, wherein the raw material is divided into an inner material and an outer material; step S3: forcibly feeding materials into the feeding machines regularly and quantitatively by a vacuum feeding machine, wherein the rotating speed of the feeding machines is set to be 24-28 r/min, the two feeding machines are used for continuously feeding materials, and the set weight is 260-280 kg/h; step S4: putting the mixed materials into a double-cone double-screw extruder, wherein the rotating speed control range is as follows: the outer wall pipe is 29-32 r/min, the inner wall pipe is 18-22 r/min, the melt mixed material is extruded through an extrusion die at the temperature of 200-210 ℃ and the melt pressure of 19MPa, the extrusion die is divided into an inner opening die and an outer opening die, the inner opening die and the outer opening die are provided with adjusting screws, and the wall thickness is adjusted according to requirements; step S5: controlling and shaping traction on the extruded and molded tube blank on a forming machine in a segmented mode, simultaneously carrying out a flaring molding process, wherein the flaring starting length is 90-110mm, the flaring ending length is 340-360mm, the forming machine is provided with at least eight segments of molding processes, the molding speed is set between 500-6000mm, the speed range is 95-100m/s, and cooling and shaping are carried out on the molded pipeline through a cooling machine; step S6: cutting the formed corrugated pipe material by a cutting machine, and stacking the cut corrugated pipe material after the cutting is finished; step S7: randomly picking a certain number of corrugated pipes from the produced corrugated pipes, and detecting the high extrusion resistance characteristics of the corrugated pipes through detection equipment; step S8: after the corrugated pipe is qualified, packaging the finished product, and leaving the factory, selecting the raw materials of the outer wall pipe, wherein the proportion of the grafted polyethylene resin is 37%, the proportion of the polyvinyl chloride resin is 40%, the proportion of the recycled material is 3%, the proportion of the fixed filler is 6%, the proportion of stearic acid is 3%, the proportion of the drying agent is 3%, the proportion of the dark green color master batch is 3%, and the proportion of the talcum powder is 5%; selecting raw materials of an outer wall pipe, wherein the grafted polyethylene resin accounts for 35%, the polyvinyl chloride resin accounts for 42%, the recycled material accounts for 3%, the fixed filler accounts for 6%, the stearic acid accounts for 3%, the drying agent accounts for 3%, the blackish green color master batch accounts for 3% and the talcum powder accounts for 5%, setting the rotating speed of the feeding machines to be 25 r/min and two feeding machines to be continuously feeding with the set weight of 260kg/h in step S3, putting the mixed materials into a double-cone double-screw extruder in step S4, controlling the rotating speed of the double-cone double-screw extruder, setting the outer wall pipe to be 30 r/min and the inner wall pipe to be 20 r/min, setting the initial flaring length to be 90mm and the final flaring length to be 340mm in step S5, and providing detection equipment of the MPVE corrugated pipe with high extrusion resistance characteristics, wherein the operation table 2 is arranged on the support frame 1, an auxiliary feeding mechanism is arranged on one side of the operating platform 2, an auxiliary fixing mechanism is arranged on the operating platform 2, and a pressure testing mechanism is arranged above the auxiliary fixing mechanism; the supplementary feed mechanism includes: the device comprises a conveyor belt 3, a grabbing control structure and a pushing feeding structure; the conveyor belt 3 is arranged on one side of the operating platform 2, the grabbing control structure is arranged at one end of the conveyor belt 3, and the pushing and feeding structure is arranged at one end of the conveyor belt 3 and is connected with the grabbing control structure; the propelling feeding structure comprises a pair of pushing parts with the same structure, the pushing parts are arranged on the two side wall surfaces of the operating platform 2 respectively, and the pushing parts comprise: the device comprises a fixed frame 4, a first hydraulic cylinder 5 and a connecting block 6; the fixed frame 4 is arranged on the side wall of the conveyor belt 3, the first hydraulic cylinder 5 is arranged in the fixed frame 4 along the horizontal direction, the movable end of the first hydraulic cylinder extends out of the fixed frame 4, and the connecting block 6 is embedded on the movable end of the first hydraulic cylinder 5; the grabbing control structure comprises a pair of grabbing parts with the same structure, and the grabbing parts are respectively arranged on the pair of pushing parts and are connected with the connecting block 6; the grasping portion includes: the auxiliary frame 7, a first electric push rod 8 and a pneumatic clamping jaw 9; the auxiliary frame 7 is installed on the connecting block 6, the first electric push rod 8 is installed on the auxiliary frame 7 along the horizontal direction, the pneumatic clamping jaw 9 is embedded on the movable end of the first electric push rod 8, and the auxiliary fixing mechanism comprises: the overturning clamping structure and the auxiliary discharging structure are arranged; the overturning clamping structure comprises a pair of overturning limiting parts with the same structure, and the pair of overturning limiting parts are respectively arranged on the operating platform 2 and correspond to each other in position; a pair of rectangular grooves with the same structure are formed in the operating platform 2, and the positions of the rectangular grooves correspond to those of the operating platform; the overturning limiting component is embedded in the rectangular groove; the spacing subassembly of upset includes: the device comprises a first servo motor 10, a rotating wheel 11 and an arc-shaped buckle plate 12; the first servo motor 10 is arranged in the rectangular groove, the rotating wheel 11 is embedded on the driving end of the first servo motor 10, and one end of the arc-shaped buckle plate 12 is embedded on the rotating wheel 11 and is positioned in the rectangular groove; the auxiliary discharging structure comprises a pair of pushing discharging parts with the same structure, a pair of square through holes with the same structure are formed in the lower end face of the operating platform 2, and the pair of pushing discharging parts are respectively embedded in the pair of square through holes; the top pushes away the portion of unloading and includes: a suspension 13, a second electric push rod 14, a second hydraulic cylinder 15 and a push plate 16; the suspension 13 inlay dress in the square through-hole, and the upper end with operation panel 2 fixed connection, second electric putter 14 along the vertical direction install in the suspension 13, second pneumatic cylinder 15 along the horizontal direction install on second electric putter 14's activity end, push pedal 16 inlays dress on second pneumatic cylinder 15's activity end, the extrusion accredited testing organization includes: a gantry 17, a moving plate 18, a pressing plate 19, a power control structure and a data measurement structure; the gantry 17 is installed on the operating table 2, the moving plate 18 is installed on the gantry 17 and movably connected with the inner walls of two sides of the gantry 17, the pressing plate 19 is installed in the gantry 17 and located below the moving plate 18, the power control structures are installed on two ends of the gantry 17 and respectively connected with the moving plate 18 and the pressing plate 19, and the data measurement structure is installed on the pressing plate 19; the power control structure includes: a pair of limit sliding parts and a lifting control part with the same structure; the pair of limiting sliding parts are respectively arranged on the inner side wall surface of the door-shaped frame 17 and connected with the moving plate 18, and the lifting control part is arranged at the lower side of the operating table 2, penetrates through the operating table 2 and is connected with the moving plate 18 and the pressing plate 19; the limiting sliding part comprises a sliding groove and a sliding block, the sliding groove is embedded on the inner side wall surface of the door-shaped frame 17, the sliding block is sleeved in the sliding groove and connected with the moving plate 18, and the lifting control part comprises: the device comprises a second servo motor 20, a bracket 21, a rotating shaft 22, a pair of first bevel gears 23 with the same structure and a pair of threaded rotating components with the same structure; the second servo motor 20 is installed on the lower side wall surface of the operation table 2, the bracket 21 is installed on the lower side wall surface of the operation table 2 and located on one side of the second servo motor 20, the rotating shaft 22 is sleeved in the bracket 21, the pair of first bevel gears 23 are respectively embedded on two ends of the rotating shaft 22, and the pair of thread rotating assemblies respectively penetrate through the operation table 2, the pressing plate 19 and the moving plate 18 and are respectively movably connected with the pair of first bevel gears 23; the screw thread rotating assembly includes: axis of rotation 24, second bevel gear 25, first thread bush 26, telescopic link 27 and threaded rod 28, axis of rotation 24 run through in operation panel 2, second bevel gear 25 inlay in on the 24 lower extremes of axis of rotation, and with first bevel gear 23 meshes mutually, first thread bush 26 inlay in on the movable plate 18, telescopic link 27 one end install in on the movable plate 18 lower side wall, and the other end with clamp plate 19 is connected, threaded rod 28 spiral run through in first thread bush 26, the 28 lower extreme of threaded rod with axis of rotation 24 is connected, the 28 upper end of threaded rod with door type frame 17 lower side wall swing joint, the data measurement structure includes: a pressure measuring unit and a height measuring unit; the pressure measuring part is arranged on the pressure plate 19 and connected with the lower side wall surface of the moving plate 18, and the height measuring part is arranged on the side wall of the pressure plate 19; the pressure measurement section includes: a pressure sensor 29, a signal collection module 30 and a signal transmission module 31; the pressure sensor 29 is installed on the pressing plate 19 and contacts with the lower side wall surface of the moving plate 18, the signal collection module 30 is installed on the pressing plate 19 and is connected with the pressure sensor 29, and the signal emission module 31 is installed on one side of the signal collection module 30 and is connected with the signal collection module 30; the height measuring section includes: a limiting frame 32, a limiting roller 33 and a measuring scale 34; the limiting frame 32 is arranged on the side wall of the pressing plate 19, the limiting roller 33 is embedded in the limiting frame 32, two ends of the limiting roller are respectively movably connected with the limiting frame 32, and the measuring ruler 34 is inserted in the limiting frame 32 and attached to the limiting roller 33.
The implementation scheme is characterized by comprising the following operation steps: step S1, preparing raw materials; step S2, mixing the raw materials; step S3, dosing; step S4, extrusion molding; step S5, cooling and shaping; step S6, cutting the pipe; step S7, extrusion detection; step S8, packaging and leaving factory; step S1: preparing raw materials of the outer wall pipe: 35-45% of grafted polyethylene resin, 40-50% of polyvinyl chloride resin, 3-4% of recycled materials, 6-8% of fixed fillers, 3-4% of stearic acid, 3-6% of drying agents, 3-5% of dark green color master batches and 5-7% of talcum powder; preparing inner wall tube raw materials: 33-47% of grafted polyethylene resin, 35-45% of polyvinyl chloride resin, 3-4% of recycled materials, 6-8% of fixed fillers, 3-4% of stearic acid, 3-6% of drying agents, 3-5% of dark green color master batches and 5-7% of talcum powder; step S2: respectively mixing the outer wall pipe raw material and the inner wall pipe raw material, and putting the raw material prepared in the step S1 into a double mixer for mixing, wherein the raw material is divided into an inner material and an outer material; step S3: forcibly feeding materials into the feeding machines regularly and quantitatively by a vacuum feeding machine, wherein the rotating speed of the feeding machines is set to be 24-28 r/min, the two feeding machines are used for continuously feeding materials, and the set weight is 260-280 kg/h; step S4: putting the mixed materials into a double-cone double-screw extruder, wherein the rotating speed control range is as follows: the outer wall pipe is 29-32 r/min, the inner wall pipe is 18-22 r/min, the melt mixed material is extruded through an extrusion die at the temperature of 200-210 ℃ and the melt pressure of 19MPa, the extrusion die is divided into an inner opening die and an outer opening die, the inner opening die and the outer opening die are provided with adjusting screws, and the wall thickness is adjusted according to requirements; step S5: controlling and shaping traction on the extruded and molded tube blank on a forming machine in a segmented mode, simultaneously carrying out a flaring molding process, wherein the flaring starting length is 90-110mm, the flaring ending length is 340-360mm, the forming machine is provided with at least eight segments of molding processes, the molding speed is set between 500-6000mm, the speed range is 95-100m/s, and cooling and shaping are carried out on the molded pipeline through a cooling machine; step S6: cutting the formed corrugated pipe material by a cutting machine, and stacking the cut corrugated pipe material after the cutting is finished; step S7: randomly picking a certain number of corrugated pipes from the produced corrugated pipes, and detecting the high extrusion resistance characteristics of the corrugated pipes through detection equipment; step S8: packaging the finished product and leaving the factory after the corrugated pipe is detected to be qualified; the method for preparing the MPVE corrugated pipe with the high extrusion resistance characteristic and the detection equipment have the advantages that the production of the MPVE corrugated pipe is carried out through the proportion of the grafted polyethylene resin and the polyvinyl chloride resin, the high extrusion resistance characteristic of the produced pipe is detected, during the detection, the auxiliary feeding mechanism is utilized to automatically feed the sample pipe, the sample pipe can be automatically fed onto the operation table, meanwhile, the auxiliary fixing mechanism on the operation table is matched to assist and fix the pipe to be detected, the influence on the test result caused by the shaking deviation of the pipe in the extrusion test process is further reduced, the pipe is extruded and tested through the extrusion testing mechanism on the operation table, the test result is collected and processed, the structure is simple, the automation degree is high, the toughness and the strength of the produced MPVE corrugated pipe are good, and the problems of low-temperature brittleness difference of the existing large-caliber sewage discharge pipe are solved, The rigidity is low, yielding, and backfill engineering volume is big, causes the road problem such as sink easily, and can carry out quantitative determination to MPVE bellows's high extrusion resistance characteristic through this check out test set to judge MPVE bellows's toughness and intensity.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
Example (b): MPVE corrugated pipe with high extrusion resistance is produced according to the following steps, and the specific operation steps are as follows:
step S1: preparing raw materials of the outer wall pipe: 37 percent of grafted polyethylene resin, 40 percent of polyvinyl chloride resin, 3 to 4 percent of recycled material, 6 to 8 percent of fixed filler, 3 to 4 percent of stearic acid, 3 to 6 percent of drying agent, 3 to 5 percent of dark green color master batch and 5 to 7 percent of talcum powder; preparing inner wall tube raw materials: 35% of grafted polyethylene resin, 42% of polyvinyl chloride resin, 3% -4% of recycled materials, 6% -8% of fixed fillers, 3% -4% of stearic acid, 3% -6% of drying agents, 3% -5% of dark green color master batches and 5% -7% of talcum powder;
step S2: respectively mixing the outer wall pipe raw material and the inner wall pipe raw material, and putting the raw material prepared in the step S1 into a double mixer for mixing, wherein the raw material is divided into an inner material and an outer material;
step S3: forcibly feeding materials into the feeding machines regularly and quantitatively by a vacuum feeding machine, wherein the rotating speed of the feeding machines is set to be 25 r/min, the two feeding machines are used for continuous feeding, and the set weight is 260 kg/h;
step S4: putting the mixed materials into a double-cone double-screw extruder, wherein the rotating speed control range is as follows: the outer wall pipe is 30 revolutions per minute, the inner wall pipe is 20 revolutions per minute, and the melted and mixed materials are extruded out through an extrusion die at the temperature of 200 ℃ and the melt pressure of 19MPa, the extrusion die is divided into an inner opening die and an outer opening die, the inner opening die and the outer opening die are provided with adjusting screws, and the wall thickness is adjusted according to requirements;
step S5: controlling shaping traction on the extruded and molded tube blank in a forming machine in a segmented mode, simultaneously carrying out a flaring molding process, setting the flaring starting length to be 90mm and the flaring ending length to be 340mm, setting at least eight sections of molding processes on the forming machine, setting the molding speed to be 4500mm/s and the speed to be 95m/s, and cooling and shaping the molded pipeline through a cooling machine;
step S6: cutting the formed corrugated pipe material by a cutting machine, and stacking the cut corrugated pipe material after the cutting is finished;
step S7: in the produced corrugated pipes, a certain number of corrugated pipes are randomly picked, and the high extrusion resistance of the corrugated pipes is detected by detection equipment.
Step S8: and packaging the finished product and leaving the factory after the corrugated pipe is detected to be qualified.
As can be known from fig. 1 to 10 of the specification, in the extrusion detection in step S7, in the specific implementation process, 8 tubes with a length of 1m are selected and placed on the conveyor belt 3 in the detection device for MPVE corrugated tube with high extrusion resistance, the first electric push rod 8 on the auxiliary frame 7 is controlled to expand, the pneumatic clamping jaw 9 on the movable end of the first electric push rod 8 is pushed to move towards the tube to be detected, the side wall of the tube is grabbed and fixed by the pneumatic clamping jaw 9, after grabbing, the movable end of the first hydraulic cylinder 5 on the fixed frame 4 is controlled to expand, the connecting block 6 is pushed to move towards the operation table 2, and the tube is moved onto the operation table 2 on the support frame 1, and the auxiliary fixing mechanism on the operation table 2 is controlled to clamp the tube, and the auxiliary fixing mechanism includes: the overturning clamping structure and the auxiliary discharging structure are arranged; the overturning clamping structure comprises a pair of overturning limiting parts with the same structure, and the pair of overturning limiting parts are respectively arranged on the operating platform 2 and correspond to each other in position; the operating platform 2 is provided with a pair of rectangular grooves with the same structure and the positions of the rectangular grooves are corresponding to each other; the spacing subassembly of upset inlays to be adorned in the rectangular channel, and the spacing subassembly of upset includes: first servo motor 10, runner 11 and arc buckle 12, its position relation and relation of connection are as follows, first servo motor 10 is installed in the rectangular channel, runner 11 inlays the dress on first servo motor 10's drive end, 12 one end inlays the dress on runner 11 of arc buckle, and be located the rectangular channel, when using, start first servo motor 10, the drive end of control first servo motor 10 rotates, drive 11 rotations of runner on its drive end, and drive 12 upsets of arc buckle on the runner 11, it is fixed to carry out the joint to the tubular product, control extrusion accredited testing organization pushes down, above-mentioned extrusion accredited testing organization includes: door type frame 17, movable plate 18, clamp plate 19, power control structure and data measurement structure, and position relation and relation of connection are as follows, door type frame 17 installs on operation panel 2, movable plate 18 installs on door type frame 17, and with door type frame 17 both sides inner wall swing joint, clamp plate 19 installs in door type frame 17, and be located movable plate 18 below, power control structure installs on door type frame 17 both ends, and be connected with movable plate 18 and clamp plate 19 respectively, data measurement structure is installed on clamp plate 19, wherein power control structure includes: a pair of limit sliding parts and a lifting control part with the same structure; a pair of spacing slider do not is installed on the wall surface in door type frame 17 inside, and is connected with movable plate 18, and the lift control portion installs in operation panel 2 downside, and runs through in operation panel 2, and is connected with movable plate 18 and clamp plate 19, and wherein spacing slider includes spout and slider, and the spout inlays and adorns on the wall surface in door type frame 17 inside, and the slider suit is in the spout, and is connected with movable plate 18, and above-mentioned lift control portion includes: a second servo motor 20, a bracket 21, a rotating shaft 22, a pair of first bevel gears 23 with the same structure and a pair of thread rotating components with the same structure, the position relationship and the connection relationship are as follows, the second servo motor 20 is installed on the lower side wall surface of the operating platform 2, the bracket 21 is installed on the lower side wall surface of the operating platform 2 and is positioned at one side of the second servo motor 20, the rotating shaft 22 is sleeved in the bracket 21, the pair of first bevel gears 23 are respectively embedded at two ends of the rotating shaft 22, the pair of thread rotating components respectively penetrate through the operating platform 2, the pressing plate 19 and the moving plate 18 and are respectively movably connected with the pair of first bevel gears 23, wherein the thread rotating components comprise: a rotating shaft 24, a second bevel gear 25, a first threaded sleeve 26, an expansion link 27, and a threaded rod 28, the positional relationship and the connection relationship of which are as follows, the rotating shaft 24 penetrates through the console 2, the second bevel gear 25 is embedded on the lower end of the rotating shaft 24 and is engaged with the first bevel gear 23, the first threaded sleeve 26 is embedded on the moving plate 18, one end of the expansion link 27 is installed on the lower side wall surface of the moving plate 18, and the other end of the expansion link is connected with the pressing plate 19, the threaded rod 28 is spirally penetrated through the first threaded sleeve 26, the lower end of the threaded rod 28 is connected with the rotating shaft 24, the upper end of the threaded rod 28 is movably connected with the lower side wall surface of the door-shaped frame 17, a height measuring part is installed on the side wall of the pressing plate 19, the positional relationship and the connection relationship of which are as follows, and the pressure measuring part includes: the pressure sensor 29, the signal collection module 30 and the signal emission module 31 are arranged in the following position relation and connection relation, the pressure sensor 29 is arranged on the pressing plate 19 and contacts with the lower side wall surface of the moving plate 18, the signal collection module 30 is arranged on the pressing plate 19 and is connected with the pressure sensor 29, and the signal emission module 31 is arranged on one side of the signal collection module 30 and is connected with the signal collection module 30; the height measuring unit includes: the limiting device comprises a limiting frame 32, a limiting roller 33 and a measuring scale 34, wherein the limiting frame 32 is arranged on the side wall of the pressing plate 19, the limiting roller 33 is embedded in the limiting frame 32, two ends of the limiting roller are respectively movably connected with the limiting frame 32, and the measuring scale 34 is inserted in the limiting frame 32 and is attached to the limiting roller 33;
when the device is used, the second servo motor 20 is started, the driving end of the second servo motor 20 is controlled to rotate, the rotating shaft 22 on the bracket 21 is driven to rotate, the first bevel gear 23 on the rotating shaft 22 is driven to rotate, the first bevel gear 23 drives the second bevel gear 25 on the lower end of the rotating shaft 24 engaged with the first bevel gear to rotate, the second bevel gear 25 drives the rotating shaft 24 to rotate, so as to drive the threaded rod 28 on the rotating shaft 24 to rotate, the threaded rod 28 rotates to drive the moving plate 18 to move downwards along the sliding grooves and the sliding blocks on the two sides of the door-shaped frame 17 under the limiting action of the first threaded sleeve 26, so that the pipe is extruded on the lower side wall surface of the pressing plate 19, at the moment, the pressure sensor 29 between the moving plate 18 and the pressing plate 19 senses a pressure signal and sends a corresponding electrical signal to the signal collecting module 30, the electrical signal received by the signal collecting module 30 is amplified by the signal sending module 31 and then sent to the central controller for storage, recording the pressure change conditions of each stage in the extrusion process to obtain a corresponding pressure value, comparing the pressure value with the existing data index to determine the high extrusion resistance characteristic of the MPVE corrugated pipe, and starting an auxiliary discharging structure after detection is finished, wherein the auxiliary discharging structure comprises a pair of pushing discharging parts with the same structure, a pair of square through holes with the same structure are formed in the lower end surface of the operating platform 2, and the pair of pushing discharging parts are respectively embedded in the pair of square through holes; the top pushes away the portion of unloading and includes: the suspension 13 is embedded in the square through hole, the upper end of the suspension is fixedly connected with the operating platform 2, the second electric push rod 14 is installed in the suspension 13 along the vertical direction, the second hydraulic cylinder 15 is installed on the movable end of the second electric push rod 14 along the horizontal direction, the push plate 16 is embedded on the movable end of the second hydraulic cylinder 15, when the suspension is used, the second electric push rod 14 in the suspension 13 is started, the movable end of the second electric push rod 14 is expanded, the second hydraulic cylinder 15 on the second electric push rod is pushed to move upwards, the second hydraulic cylinder 15 is pushed to the upper side of the plane of the operating platform 2, the expansion of the movable end of the second hydraulic cylinder 15 is controlled, the push plate 16 on the movable end of the second hydraulic cylinder 15 pushes the squashed waste materials after testing from the operating platform 2, and the operations are repeated to carry out continuous testing,
the produced MPVE corrugated pipe is subjected to extrusion test according to specific operation steps in the embodiment, and then the detection result is recorded, so that the pipe is not broken and layered even when the pipe is pressed to the inner diameter of more than 50%, and the flow is ensured to be lasting and smooth.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (10)
1. The preparation method of the MPVE corrugated pipe with high extrusion resistance is characterized by comprising the following operation steps: step S1, preparing raw materials; step S2, mixing the raw materials; step S3, dosing; step S4, extrusion molding; step S5, cooling and shaping; step S6, cutting the pipe; step S7, extrusion detection; step S8, packaging and leaving factory;
step S1: preparing raw materials of the outer wall pipe: 35-45% of grafted polyethylene resin, 40-50% of polyvinyl chloride resin, 3-4% of recycled materials, 6-8% of fixed fillers, 3-4% of stearic acid, 3-6% of drying agents, 3-5% of dark green color master batches and 5-7% of talcum powder; preparing inner wall tube raw materials: 33-47% of grafted polyethylene resin, 35-45% of polyvinyl chloride resin, 3-4% of recycled materials, 6-8% of fixed fillers, 3-4% of stearic acid, 3-6% of drying agents, 3-5% of dark green color master batches and 5-7% of talcum powder;
step S2: respectively mixing the outer wall pipe raw material and the inner wall pipe raw material, and putting the raw material prepared in the step S1 into a double mixer for mixing, wherein the raw material is divided into an inner material and an outer material;
step S3: forcibly feeding materials into the feeding machines regularly and quantitatively by a vacuum feeding machine, wherein the rotating speed of the feeding machines is set to be 24-28 r/min, the two feeding machines are used for continuously feeding materials, and the set weight is 260-280 kg/h;
step S4: putting the mixed materials into a double-cone double-screw extruder, wherein the rotating speed control range is as follows: the outer wall pipe is 29-32 r/min, the inner wall pipe is 18-22 r/min, the melt mixed material is extruded through an extrusion die at the temperature of 200-210 ℃ and the melt pressure of 19MPa, the extrusion die is divided into an inner opening die and an outer opening die, the inner opening die and the outer opening die are provided with adjusting screws, and the wall thickness is adjusted according to requirements;
step S5: controlling and shaping traction on the extruded and molded tube blank on a forming machine in a segmented mode, simultaneously carrying out a flaring molding process, wherein the flaring starting length is 90-110mm, the flaring ending length is 340-360mm, the forming machine is provided with at least eight segments of molding processes, the molding speed is set between 500-6000mm, the speed range is 95-100m/s, and cooling and shaping are carried out on the molded pipeline through a cooling machine;
step S6: cutting the formed corrugated pipe material by a cutting machine, and stacking the cut corrugated pipe material after the cutting is finished;
step S7: randomly picking a certain number of corrugated pipes from the produced corrugated pipes, and detecting the high extrusion resistance characteristics of the corrugated pipes through detection equipment;
step S8: and packaging the finished product and leaving the factory after the corrugated pipe is detected to be qualified.
2. The method for preparing MPVE corrugated pipe with high extrusion resistance as claimed in claim 1, wherein the raw material of the outer wall pipe is selected, wherein the grafted polyethylene resin accounts for 37%, the polyvinyl chloride resin accounts for 40%, the recycled material accounts for 3%, the fixed filler accounts for 6%, the stearic acid accounts for 3%, the drying agent accounts for 3%, the dark green color master batch accounts for 3%, and the talcum powder accounts for 5%; selecting outer wall pipe raw materials, wherein the proportion of grafted polyethylene resin is 35%, the proportion of polyvinyl chloride resin is 42%, the proportion of recycled materials is 3%, the proportion of fixed fillers is 6%, the proportion of stearic acid is 3%, the proportion of drying agents is 3%, the proportion of dark green color master is 3% and the proportion of talcum powder is 5%.
3. The method of claim 1, wherein the rotation speed of the feeders in step S3 is set to 25 rpm, two feeders are continuously fed, and the set weight is 260 kg/h.
4. The method of claim 1, wherein the step S4 is to place the mixture into a twin-cone twin-screw extruder, and to control the rotation speed of the twin-screw extruder, wherein the outer wall tube is 30 rpm and the inner wall tube is 20 rpm.
5. The method for preparing MPVE corrugated tube with high extrusion resistance as claimed in claim 1, wherein in step S5, the flaring start length is 90mm and the flaring end length is 340 mm.
6. The detection equipment for the MPVE corrugated pipe with the high extrusion resistance characteristic comprises a support frame (1) and an operating platform (2), and is characterized in that the operating platform (2) is arranged on the support frame (1), an auxiliary feeding mechanism is arranged on one side of the operating platform (2), an auxiliary fixing mechanism is arranged on the operating platform (2), and a pressure testing mechanism is arranged above the auxiliary fixing mechanism;
the supplementary feed mechanism includes: the device comprises a conveying belt (3), a grabbing control structure and a pushing feeding structure;
the conveying belt (3) is arranged on one side of the operating platform (2), the grabbing control structure is arranged on one end of the conveying belt (3), and the pushing and feeding structure is arranged on one end of the conveying belt (3) and connected with the grabbing control structure;
the propelling feeding structure comprises a pair of pushing parts with the same structure, the pushing parts are arranged on the two side wall surfaces of the operating platform (2) respectively, and the pushing parts comprise: the device comprises a fixed frame (4), a first hydraulic cylinder (5) and a connecting block (6);
the fixed frame (4) is arranged on the side wall of the conveyor belt (3), the first hydraulic cylinder (5) is arranged in the fixed frame (4) along the horizontal direction, the movable end of the first hydraulic cylinder extends out of the fixed frame (4), and the connecting block (6) is embedded on the movable end of the first hydraulic cylinder (5);
the grabbing control structure comprises a pair of grabbing parts with the same structure, and the grabbing parts are respectively arranged on the pair of pushing parts and are connected with the connecting block (6); the grasping portion includes: the device comprises an auxiliary frame (7), a first electric push rod (8) and a pneumatic clamping jaw (9);
the auxiliary frame (7) is arranged on the connecting block (6), the first electric push rod (8) is arranged on the auxiliary frame (7) along the horizontal direction, and the pneumatic clamping jaw (9) is embedded on the movable end of the first electric push rod (8).
7. A test apparatus for MPVE bellows with high crush resistance as claimed in claim 6, wherein the auxiliary securing mechanism comprises: the overturning clamping structure and the auxiliary discharging structure are arranged;
the overturning clamping structure comprises a pair of overturning limiting parts with the same structure, and the pair of overturning limiting parts are respectively arranged on the operating platform (2) and correspond to each other in position; a pair of rectangular grooves with the same structure are formed in the operating platform (2) and correspond to each other in position; the overturning limiting assembly is embedded in the rectangular groove;
the spacing subassembly of upset includes: the device comprises a first servo motor (10), a rotating wheel (11) and an arc-shaped buckle plate (12);
the first servo motor (10) is arranged in the rectangular groove, the rotating wheel (11) is embedded on the driving end of the first servo motor (10), and one end of the arc-shaped buckle plate (12) is embedded on the rotating wheel (11) and is positioned in the rectangular groove;
the auxiliary discharging structure comprises a pair of pushing discharging parts with the same structure, a pair of square through holes with the same structure are formed in the lower end face of the operating platform (2), and the pair of pushing discharging parts are respectively embedded in the pair of square through holes; the top pushes away the portion of unloading and includes: a suspension (13), a second electric push rod (14), a second hydraulic cylinder (15) and a push plate (16);
the suspension (13) is embedded in the square through hole, the upper end of the suspension is fixedly connected with the operating platform (2), the second electric push rod (14) is arranged in the suspension (13) along the vertical direction, the second hydraulic cylinder (15) is arranged on the movable end of the second electric push rod (14) along the horizontal direction, and the push plate (16) is embedded on the movable end of the second hydraulic cylinder (15).
8. The apparatus of claim 6, wherein the crush testing mechanism comprises: the device comprises a door-shaped frame (17), a moving plate (18), a pressing plate (19), a power control structure and a data measurement structure;
the door-shaped frame (17) is arranged on the operating table (2), the moving plate (18) is arranged on the door-shaped frame (17) and is movably connected with the inner walls of two sides of the door-shaped frame (17), the pressing plate (19) is arranged in the door-shaped frame (17) and is positioned below the moving plate (18), the power control structures are arranged on two ends of the door-shaped frame (17) and are respectively connected with the moving plate (18) and the pressing plate (19), and the data measurement structure is arranged on the pressing plate (19);
the power control structure includes: a pair of limit sliding parts and a lifting control part with the same structure; the pair of limiting sliding parts are respectively arranged on the inner side wall surface of the door-shaped frame (17) and connected with the moving plate (18), and the lifting control part is arranged on the lower side of the operating table (2), penetrates through the operating table (2) and is connected with the moving plate (18) and the pressing plate (19);
the limiting sliding part comprises a sliding groove and a sliding block, the sliding groove is embedded on the inner side wall surface of the door-shaped frame (17), and the sliding block is sleeved in the sliding groove and connected with the moving plate (18).
9. The apparatus of claim 8, wherein the elevation control part comprises: the device comprises a second servo motor (20), a bracket (21), a rotating shaft (22), a pair of first bevel gears (23) with the same structure and a pair of thread rotating assemblies with the same structure;
the second servo motor (20) is arranged on the lower side wall surface of the operating platform (2), the support (21) is arranged on the lower side wall surface of the operating platform (2) and located on one side of the second servo motor (20), the rotating shaft (22) is sleeved in the support (21), the pair of first bevel gears (23) are respectively embedded on two ends of the rotating shaft (22), and the pair of thread rotating assemblies respectively penetrate through the operating platform (2), the pressing plate (19) and the moving plate (18) and are respectively movably connected with the pair of first bevel gears (23);
the screw thread rotating assembly includes: a rotating shaft (24), a second bevel gear (25), a first thread sleeve (26), a telescopic rod (27) and a threaded rod (28);
rotation axis (24) run through in operation panel (2), second bevel gear (25) inlay in on rotation axis (24) lower extreme, and with first bevel gear (23) mesh mutually, first thread bush (26) inlay in on moving plate (18), telescopic link (27) one end install in on moving plate (18) downside wall, and the other end with clamp plate (19) are connected, threaded rod (28) spiral run through in first thread bush (26), threaded rod (28) lower extreme with rotation axis (24) are connected, threaded rod (28) upper end with door type frame (17) downside wall swing joint.
10. The apparatus of claim 8, wherein the data measurement structure comprises: a pressure measuring unit and a height measuring unit; the pressure measuring part is arranged on the pressure plate (19) and connected with the lower side wall surface of the moving plate (18), and the height measuring part is arranged on the side wall of the pressure plate (19);
the pressure measurement section includes: the pressure sensor (29), the signal collection module (30) and the signal emission module (31);
the pressure sensor (29) is arranged on the pressing plate (19) and is in contact with the lower side wall surface of the moving plate (18), the signal collecting module (30) is arranged on the pressing plate (19) and is connected with the pressure sensor (29), and the signal transmitting module (31) is arranged on one side of the signal collecting module (30) and is connected with the signal collecting module (30);
the height measuring section includes: a limiting frame (32), a limiting roller (33) and a measuring scale (34);
spacing (32) install in on clamp plate (19) lateral wall, spacing roller (33) inlay dress in spacing (32), and both ends respectively with spacing (32) swing joint, dipperstick (34) cartridge in spacing (32), and with spacing roller (33) laminate mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110123958.XA CN114801269A (en) | 2021-01-29 | 2021-01-29 | Preparation method and detection equipment of MPVE corrugated pipe with high extrusion resistance characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110123958.XA CN114801269A (en) | 2021-01-29 | 2021-01-29 | Preparation method and detection equipment of MPVE corrugated pipe with high extrusion resistance characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114801269A true CN114801269A (en) | 2022-07-29 |
Family
ID=82526053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110123958.XA Pending CN114801269A (en) | 2021-01-29 | 2021-01-29 | Preparation method and detection equipment of MPVE corrugated pipe with high extrusion resistance characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114801269A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211453147U (en) * | 2019-11-12 | 2020-09-08 | 天津市旺盛工贸有限公司 | Steel pipe resistance to compression testing arrangement in frame production |
| CN211905023U (en) * | 2020-04-15 | 2020-11-10 | 大连职业技术学院 | Silane cement based composite impermeability detection device |
-
2021
- 2021-01-29 CN CN202110123958.XA patent/CN114801269A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211453147U (en) * | 2019-11-12 | 2020-09-08 | 天津市旺盛工贸有限公司 | Steel pipe resistance to compression testing arrangement in frame production |
| CN211905023U (en) * | 2020-04-15 | 2020-11-10 | 大连职业技术学院 | Silane cement based composite impermeability detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2796219B1 (en) | Apparatus for manufacturing a seamless pipe | |
| CN113695664B (en) | Full-automatic intelligent control's electronic steel pipe cutting machine device | |
| CN112157850B (en) | Automatic processing system for hot melt adhesive rod forming | |
| CN114801269A (en) | Preparation method and detection equipment of MPVE corrugated pipe with high extrusion resistance characteristic | |
| CN111497313B (en) | Double-layer powder pressing method and double-layer hybrid power press | |
| CN109927265B (en) | Continuous processing and forming equipment and process for Kela pipe | |
| CN113560885B (en) | Automatic padlock assembling machine and processing method thereof | |
| CN115207743B (en) | Production process of large-diameter conductive slip ring | |
| CN206344478U (en) | A kind of full-automatic making sheet former of plastic cement | |
| CN110861333B (en) | Preparation method and detection equipment of MPVE corrugated pipe with high impact resistance characteristic | |
| CN209755802U (en) | Rubber mixer | |
| CN110901117B (en) | Preparation method and detection equipment of MPVE corrugated pipe with compression resistance characteristic | |
| CN1966170A (en) | Automatic tooth mesh device for burnishing | |
| CN210702030U (en) | Thin wall tooth hub spin forming die | |
| CN114813362A (en) | Preparation method and detection equipment for sand and stone resistance of MPVE corrugated pipe | |
| CN214290174U (en) | Sheet material die mould device of processing tubular pile | |
| CN220215804U (en) | Automatic detection device for cylindrical workpiece | |
| CN110818980B (en) | Preparation method and detection equipment of MPVE double-wall corrugated pipe with high rolling resistance | |
| CN112895062A (en) | Domestic ceramic throwing machine | |
| CN110883558A (en) | Output shaft processing equipment | |
| CN220261398U (en) | Brick making machine | |
| CN218966239U (en) | Four seasons cold piece production facility | |
| CN210880971U (en) | Plastic bottom plate weldless overlapping forming equipment | |
| CN110815764B (en) | Detection equipment for MPVE double-wall corrugated pipe with high bending strength resistance | |
| CN215359321U (en) | ABS plastic granule manufacturing machine convenient to quick connection |
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 |