CN113201182A - Heat-resistant reinforced HDPE double-wall corrugated pipe - Google Patents
Heat-resistant reinforced HDPE double-wall corrugated pipe Download PDFInfo
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- CN113201182A CN113201182A CN202110578475.9A CN202110578475A CN113201182A CN 113201182 A CN113201182 A CN 113201182A CN 202110578475 A CN202110578475 A CN 202110578475A CN 113201182 A CN113201182 A CN 113201182A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
- B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
- B26D1/18—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
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- 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
- B29D22/00—Producing hollow articles
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The invention discloses a heat-resistant reinforced HDPE double-wall corrugated pipe, which is prepared by selecting components such as wood powder, titanate coupling agent, ethylene propylene diene monomer, HDPE resin, glass fiber and the like, has good low-temperature impact toughness, meanwhile, the prepared HDPE double-wall corrugated pipe has good rigidity, high ring rigidity and strong creep resistance by limiting the Mooney value and the ethylene-propylene ratio of the ethylene-propylene-diene monomer rubber, the heat-resistant and wear-resistant performance of the corrugated pipe is further improved by adding an anti-aging agent, dibenzofuran and a dispersing agent, the heat-resistant and insulating master batch is prepared by processing raw materials such as block copolymer polypropylene resin, a surface synergist, a hyper-dispersant and the like, the heat-resistant and insulating functions of the surface of the HDPE double-wall corrugated pipe are effectively improved, the Vicat softening point of the prepared heat-resistant reinforced HDPE double-wall corrugated pipe is 159-168 ℃ according to the test of GB/T8802-2001.
Description
Technical Field
The invention relates to the technical field of pipe preparation, in particular to a heat-resistant reinforced HDPE double-wall corrugated pipe.
Background
HDPE is one of 5 common plastics in the world, is widely used in view of good toughness and processability, and can be widely applied to municipal water supply and drainage pipelines, and the conventional HDPE double-wall corrugated pipe generally adopts talcum powder and calcium carbonate as reinforcing materials, so that the strength is low, the weight is large, and the wear resistance and the heat resistance of the surface are poor. The HDPE double-wall corrugated pipe that has now need cool off the processing after extruding, and prior art has two kinds of modes to cool off usually now, and the first kind is spray cooling, and the second kind is soaking cooling, and the second kind is put into the cooling trough with the pipe fitting and cools off, and current cooling trough just needs darker degree of depth if need satisfy the key cooling of a large amount, and it is very big like this, not only can cause the waste of cooling water, but also needs very big area.
Disclosure of Invention
The invention aims to provide a heat-resistant reinforced HDPE double-wall corrugated pipe, which solves the following technical problems: (1) the reinforced HDPE double-wall corrugated pipe prepared by selecting the components of wood powder, titanate coupling agent, ethylene propylene diene monomer, HDPE resin, glass fiber and the like not only has good low-temperature impact toughness, meanwhile, the prepared HDPE double-wall corrugated pipe has good rigidity, high ring rigidity and strong creep resistance by limiting the Mooney value and the ethylene-propylene ratio of the ethylene-propylene-diene monomer rubber, the heat-resistant and wear-resistant performance of the corrugated pipe is further improved by adding an anti-aging agent, dibenzofuran and a dispersing agent, the heat-resistant and insulating master batch is prepared by processing raw materials such as block copolymer polypropylene resin, a surface synergist, a hyper-dispersant and the like, the heat-resistant and insulating functions of the surface of the HDPE double-wall corrugated pipe are effectively improved, according to the determination of GB/T8802-2001, the Vicat softening point of the prepared heat-resistant reinforced HDPE double-wall corrugated pipe is 159-168 ℃; (2) adding the mixture into a feeding hopper of an extrusion cooling device, feeding the mixture into an extrusion cylinder through the feeding hopper, driving the extrusion screw to rotate by an output shaft of an extrusion motor, extruding the mixture by the extrusion screw to obtain a preformed pipe fitting, feeding the preformed pipe fitting into a guide cylinder below the inner wall of one of the rotary cylinders, driving a cutting frame downwards by a cutting cylinder piston rod, driving a cutting disc to rotate by the output shaft of the cutting motor, cutting the preformed pipe fitting by the cutting disc, driving the output shaft of the driving motor to drive a gear to rotate, driving the rotary cylinders to rotate by the gear in cooperation with a toothed ring, driving a plurality of guide cylinders of the inner wall to circularly lift by the rotary cylinders, repeating the operations, cutting the rest preformed pipe fittings, remaining in the guide cylinders, driving a ball screw to rotate by an output shaft of a lateral shifting motor, driving a lateral shifting plate to horizontally slide by the ball screw, and driving the extrusion cylinder to horizontally slide by the lateral shifting plate, the extrusion cylinder moves to one side of the other rotary cylinder, the operation is repeated, the preformed pipe fittings which are cut subsequently are left in the guide cylinders in the other rotary cylinders, the extrusion cooling equipment in the heat-resistance-enhanced HDPE double-wall corrugated pipe processing technology is designed through the rotatable rotary cylinder, the preformed pipe fittings which are obtained after cutting are left in the guide cylinders of the rotary cylinders, the technical problem that the occupied space of a large number of the preformed pipe fittings which are cut are arranged on the ground or on a production line is large is effectively solved, the horizontal movement of the extrusion cylinder is further met through the design of the side shifting plate which can move in a translation mode, and the extrusion cylinder can automatically keep the preformed pipe fittings in the guide cylinders on the parallel rotary cylinders; (3) a piston rod of a horizontal cylinder pushes a first push plate, the push plate drives a movable frame to move horizontally, the movable frame drives a guide strip to slide along a guide block, the movable frame moves into a lifting chamber, then a piston rod of a lifting cylinder pushes the guide block downwards, the guide block drives the movable frame to descend, a guide cylinder below the inner wall of a rotary drum on the movable frame enters a cooling water tank, cooling water in the cooling water tank cools preformed pipes through holes in the guide cylinder, the preformed pipes are cooled to obtain heat-resistance-enhanced HDPE double-wall corrugated pipes, a driving motor output shaft drives a gear to rotate, the gear is matched with a toothed ring to drive the rotary drum to rotate, a plurality of guide cylinders on the inner wall of the rotary drum circularly lift and enter the cooling water tank, the cooling water cools the preformed pipes in the other guide cylinders, and after all the preformed pipes are cooled, the two piston rods of the horizontal cylinder push the moving frame to move to the initial position through the two push plates, the extrusion cooling equipment in the heat-resistant reinforced HDPE double-wall corrugated pipe machining process can automatically cool a plurality of preformed pipe fittings, and the continuous rotation of the rotary cylinder greatly reduces the depth required by the cooling water tank, so that the size required by the cooling water tank is reduced, and the practicability is high.
The purpose of the invention can be realized by the following technical scheme:
the HDPE double-wall corrugated pipe with the enhanced heat resistance is prepared from the following raw materials in parts by weight: 110-130 parts of HDPE resin, 50-65 parts of wood powder, 2-4 parts of titanate coupling agent, 8-12 parts of ethylene propylene diene monomer, 20-35 parts of glass fiber, 0.5-3 parts of heat-resistant insulating master batch, 1-3 parts of anti-aging agent, 0.4-1.2 parts of dibenzofuran and 0.6-0.8 part of dispersing agent;
the heat-resistant reinforced HDPE double-wall corrugated pipe is prepared by the following steps:
drying wood flour by adopting two-stage combined pulse airflow, drying for 0.8-3.6 hours at 140-200 ℃ to enable the water content to be lower than 250mg/kg, cooling to normal temperature, mixing with a titanate coupling agent, heating to 60-80 ℃, stirring and dispersing for 6-8 minutes at the speed of 800-1100 rpm, adding ethylene propylene diene monomer rubber, stirring uniformly, automatically cooling to obtain a master batch, uniformly mixing the master batch with HDPE resin, glass fiber, heat-resistant insulating master batch, an anti-aging agent, dibenzofuran and a dispersing agent to obtain a mixture, adding the mixture into a feeding hopper of an extrusion cooling device, feeding the mixture into an extrusion cylinder through the feeding hopper, driving an extrusion screw rod to rotate by an output shaft of an extrusion motor, extruding the mixture by the extrusion screw rod to obtain a preformed pipe fitting, feeding the preformed pipe fitting into a guide cylinder below the inner wall of one rotary cylinder, then a piston rod of a cutting cylinder pushes a cutting frame downwards, an output shaft of a cutting motor drives a cutting disc to rotate, the cutting disc cuts preformed pipe fittings, after cutting, an output shaft of a driving motor drives a gear to rotate, the gear is matched with a toothed ring to drive a rotary cylinder to rotate, the rotary cylinder drives a plurality of guide cylinders of an inner wall to circularly lift, then the operation is repeated, the rest preformed pipe fittings are left in the guide cylinders after being cut, then an output shaft of a lateral shifting motor drives a ball screw to rotate, the ball screw drives a lateral shifting plate to horizontally slide along an installation frame, the lateral shifting plate moves an extrusion cylinder to horizontally slide, and further the extrusion cylinder moves to one side of another rotary cylinder, the operation is repeated, the subsequently cut preformed pipe fittings are left in the guide cylinders in the rest rotary cylinders, then a piston rod of a horizontal cylinder pushes a first push plate, the push plate drives the moving frame to horizontally move, and the moving frame drives the guide bars to slide along the guide blocks, remove the frame and remove to in the lift chamber, then lift cylinder piston rod promotes the guide block downwards, the guide block drives and removes the frame decline, remove the guide cylinder of spin drum inner wall below on the frame and get into the cooling trough, the cooling water in the cooling trough cools off the preforming pipe fitting through the through-hole on the guide cylinder, obtain heat resistance reinforcing HDPE double-walled bellows after the preforming pipe fitting cooling, driving motor output shaft drives gear revolve, gear cooperation ring gear drives the rotary cylinder rotatory, a plurality of guide cylinder circulative lifting of rotary cylinder inner wall get into the cooling trough in, the cooling water cools off the preforming pipe fitting in all the other guide cylinders, the whole cooling completion back of preforming pipe fitting, lift cylinder piston rod shrink drives and removes the frame and rises, two piston rods of horizontal cylinder promote through push pedal two and remove the frame and remove to initial position.
Further, the heat-resistant insulating functional master batch is prepared by the following steps: surface processing is carried out on the nanometer red powder by using a surface synergist and a hyperdispersant in an atomizing and spraying mode, the nanometer red powder is dried to obtain the pretreated nanometer red powder for standby, 35-60 parts of block copolymerization polypropylene resin, 2-4 parts of the pretreated nanometer red powder, 2-4 parts of nanometer yellow powder, 3-6 parts of a lubricant, 3-6 parts of a processing aid, 0.8-2.4 parts of an antioxidant, 1.5-5 parts of a light stabilizer, 4-10 parts of molybdenum dioxide and 4-10 parts of chromium dioxide are weighed according to parts by weight, the heat-resistant insulating master batch is prepared by banburying, extrusion and granulation, the banburying process temperature is 145-170 ℃, the granulation temperature is 185-205 ℃, the lubricant is polyolefin oligomer, the processing aid is ethylene copolymer, the antioxidant is hindered phenol antioxidant, and the light stabilizer is benzotriazole ultraviolet absorbent, the hyper-dispersant is water-soluble polymer dispersant, and the surface synergist is titanate.
Further, the anti-aging agent is diphenylamine, thiodipropionic acid diester and pentaerythritol ester in a mass ratio of 2: 1: 3 in the presence of a carrier.
Further, the dispersant is one of methylpentanol, polyacrylamide, guar gum and triethylhexyl phosphoric acid.
Further, the extrusion cooling equipment comprises a supporting table, a mounting frame is arranged above the supporting table, a side shifting plate is arranged above the mounting frame, an extruding cylinder is arranged above the side shifting plate, a positioning frame is arranged at the top of one side of the extruding cylinder, a cutting cylinder is arranged on the positioning frame, a cutting frame is arranged at the end part of a piston rod of the cutting cylinder, a cutting disc is rotatably arranged on the cutting frame, a first horizontal cylinder is arranged below the mounting frame, a first push plate is arranged at the end part of a piston rod of the first horizontal cylinder, a second horizontal cylinder is arranged at the top of the supporting table, a second push plate is arranged at the end part of a piston rod of the second horizontal cylinder, the first horizontal cylinder and the second horizontal cylinder are oppositely arranged, a moving frame is arranged between the first horizontal cylinder and the second horizontal cylinder, the moving frame penetrates through a lifting chamber, and a lifting cylinder is arranged at the top of the outer wall of the lifting chamber, the lifting cylinder piston rod end portion installs the guide block, guide block slidable mounting is on the guide strip, the guide strip is fixed in and removes a frame outer wall top, remove a frame inner wall top and install a plurality of driving motor, driving motor output shaft connects the gear, gear engagement connects the ring gear, the ring gear is installed in the rotatory section of thick bamboo outer wall, rotatory section of thick bamboo outer wall is installed two rotatory rings, rotatory ring both sides are provided with two bearing frames, rotate on the bearing frame and install the leading wheel, the leading wheel contacts with rotatory ring, a supporting bench below is provided with the cooling trough, a plurality of guide cylinders are installed to radians such as rotatory section of thick bamboo inner wall, a plurality of through-holes have been seted up on the guide cylinder surface.
Furthermore, the side moving plate is slidably mounted at the top of the mounting frame, a side moving motor is arranged on one side of the top of the mounting frame, an output shaft of the side moving motor is connected with a ball screw, and the ball screw is in threaded connection with the side moving plate.
Furthermore, a feeding hopper is arranged above the extruding cylinder, the extruding cylinder is communicated with the feeding hopper, an extruding motor is arranged at one end of the extruding cylinder, an output shaft of the extruding motor is connected with an extruding screw rod, and the extruding screw rod is arranged in the extruding cylinder.
Furthermore, a cutting motor is installed on the cutting frame, an output shaft of the cutting motor is connected with the cutting disc, and the cooling water tank is arranged below the lifting chamber.
The invention has the beneficial effects that:
(1) the reinforced HDPE double-wall corrugated pipe prepared by selecting the components of wood powder, titanate coupling agent, ethylene propylene diene monomer, HDPE resin, glass fiber and the like has good low-temperature impact toughness, meanwhile, the prepared HDPE double-wall corrugated pipe has good rigidity, high ring rigidity and strong creep resistance by limiting the Mooney value and the ethylene-propylene ratio of the ethylene-propylene-diene monomer rubber, the heat-resistant and wear-resistant performance of the corrugated pipe is further improved by adding an anti-aging agent, dibenzofuran and a dispersing agent, the heat-resistant and insulating master batch is prepared by processing raw materials such as block copolymer polypropylene resin, a surface synergist, a hyper-dispersant and the like, the heat-resistant and insulating functions of the surface of the HDPE double-wall corrugated pipe are effectively improved, according to GB/T8802-2001, the Vicat softening point of the prepared heat-resistant reinforced HDPE double-wall corrugated pipe is 159-168 ℃;
(2) adding the mixture into a feeding hopper of an extrusion cooling device, feeding the mixture into an extrusion cylinder through the feeding hopper, driving the extrusion screw to rotate by an output shaft of an extrusion motor, extruding the mixture by the extrusion screw to obtain a preformed pipe fitting, feeding the preformed pipe fitting into a guide cylinder below the inner wall of one of the rotary cylinders, driving a cutting frame downwards by a cutting cylinder piston rod, driving a cutting disc to rotate by the output shaft of the cutting motor, cutting the preformed pipe fitting by the cutting disc, driving the output shaft of the driving motor to drive a gear to rotate, driving the rotary cylinders to rotate by the gear in cooperation with a toothed ring, driving a plurality of guide cylinders of the inner wall to circularly lift by the rotary cylinders, repeating the operations, cutting the rest preformed pipe fittings, remaining in the guide cylinders, driving a ball screw to rotate by an output shaft of a lateral shifting motor, driving a lateral shifting plate to horizontally slide by the ball screw, and driving the extrusion cylinder to horizontally slide by the lateral shifting plate, the extrusion cylinder moves to one side of the other rotary cylinder, the operation is repeated, the preformed pipe fittings which are cut subsequently are left in the guide cylinders in the other rotary cylinders, the extrusion cooling equipment in the heat-resistance-enhanced HDPE double-wall corrugated pipe processing technology is designed through the rotatable rotary cylinder, the preformed pipe fittings which are obtained after cutting are left in the guide cylinders of the rotary cylinders, the technical problem that the occupied space of a large number of the preformed pipe fittings which are cut are arranged on the ground or on a production line is large is effectively solved, the horizontal movement of the extrusion cylinder is further met through the design of the side shifting plate which can move in a translation mode, and the extrusion cylinder can automatically keep the preformed pipe fittings in the guide cylinders on the parallel rotary cylinders;
(3) a piston rod of a horizontal cylinder pushes a first push plate, the push plate drives a movable frame to move horizontally, the movable frame drives a guide strip to slide along a guide block, the movable frame moves into a lifting chamber, then a piston rod of a lifting cylinder pushes the guide block downwards, the guide block drives the movable frame to descend, a guide cylinder below the inner wall of a rotary drum on the movable frame enters a cooling water tank, cooling water in the cooling water tank cools preformed pipes through holes in the guide cylinder, the preformed pipes are cooled to obtain heat-resistance-enhanced HDPE double-wall corrugated pipes, a driving motor output shaft drives a gear to rotate, the gear is matched with a toothed ring to drive the rotary drum to rotate, a plurality of guide cylinders on the inner wall of the rotary drum circularly lift and enter the cooling water tank, the cooling water cools the preformed pipes in the other guide cylinders, and after all the preformed pipes are cooled, the piston rod of the lifting cylinder contracts and drives the movable frame to ascend, the piston rod of the horizontal cylinder II pushes the moving frame to move to the initial position through the push plate II, the extrusion cooling equipment in the heat-resistance-enhanced HDPE double-wall corrugated pipe machining process can automatically cool a plurality of preformed pipe fittings, meanwhile, the rotary cylinder continuously rotates to greatly reduce the depth required by the cooling water tank, further reduce the volume required by the cooling water tank, and the practicability is high.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structure of an extrusion cooling apparatus of the present invention;
FIG. 2 is an internal structural view of the mobile frame of the present invention;
FIG. 3 is a view showing the internal structure of the extruding cylinder of the present invention;
FIG. 4 is a schematic view of the positioning frame of the present invention;
FIG. 5 is a schematic view of the construction of the rotary cylinder of the present invention;
fig. 6 is an internal structure view of the cage according to the present invention.
In the figure: 1. a support table; 2. a mounting frame; 3. a first horizontal cylinder; 4. a side shift plate; 5. an extrusion cylinder; 6. an extrusion motor; 7. feeding into a hopper; 8. a ball screw; 9. a side shift motor; 10. extruding a screw; 11. a positioning frame; 12. cutting the air cylinder; 13. a cutting frame; 14. cutting the motor; 15. cutting the disc; 16. a lifting chamber; 17. a cooling water tank; 18. pushing a first plate; 19. a second horizontal cylinder; 20. a second push plate; 21. a lifting cylinder; 22. a guide block; 23. a movable frame; 24. a guide strip; 25. a drive motor; 26. a gear; 27. a rotary drum; 28. a toothed ring; 29. a rotating ring; 30. a bearing seat; 31. a guide wheel; 32. and a guide cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to FIGS. 1-6
Example 1
The HDPE double-wall corrugated pipe with the enhanced heat resistance is prepared from the following raw materials in parts by weight: 110 parts of HDPE resin, 50 parts of wood powder, 2 parts of titanate coupling agent, 8 parts of ethylene propylene diene monomer, 20 parts of glass fiber, 0.5 part of heat-resistant insulating functional master batch, 1 part of age resister, 0.4 part of dibenzofuran and 0.6 part of dispersant;
the heat-resistant reinforced HDPE double-wall corrugated pipe is prepared by the following steps:
the method comprises the following steps: drying wood flour by adopting two-stage combined pulse airflow, drying for 0.8 hour at 140 ℃ to ensure that the moisture content is lower than 250mg/kg, cooling to normal temperature, mixing with titanate coupling agent, heating to 60 ℃, stirring and dispersing for 6 minutes at 800 rpm, then adding ethylene propylene diene monomer, stirring uniformly, then automatically cooling to obtain master batch, then uniformly mixing the master batch with HDPE resin, glass fiber, heat-resistant insulating functional master batch, anti-aging agent, dibenzofuran and dispersing agent to obtain mixture, adding the mixture into a feeding hopper 7 of extrusion cooling equipment, feeding the mixture into an extrusion barrel 5 through the feeding hopper 7, driving an output shaft of an extrusion motor 6 to rotate an extrusion screw 10, extruding the mixture by the extrusion screw 10 to obtain a preformed pipe fitting, feeding the preformed pipe fitting into a guide barrel 32 below the inner wall of one rotary barrel 27, and then pushing a cutting frame 13 downwards by a piston rod of a cutting cylinder 12, the output shaft of the cutting motor 14 drives the cutting disc 15 to rotate, the cutting disc 15 cuts the preformed pipe, the output shaft of the driving motor 25 drives the gear 26 to rotate after cutting, the gear 26 is matched with the toothed ring 28 to drive the rotary cylinder 27 to rotate, the rotary cylinder 27 drives the guide cylinders 32 on the inner wall to circularly lift, the operation is repeated, the rest preformed pipe is left in the guide cylinders 32 after cutting, the output shaft of the lateral shifting motor 9 drives the ball screw 8 to rotate, the ball screw 8 drives the lateral shifting plate 4 to horizontally slide along the mounting rack 2, the lateral shifting plate 4 drives the extrusion cylinder 5 to horizontally slide, the extrusion cylinder 5 is further moved to one side of the other rotary cylinder 27, the operation is repeated, the subsequently cut preformed pipe is left in the guide cylinders 32 in the rest rotary cylinders 27, the piston rod of the horizontal cylinder I3 pushes the push plate I18, and the push plate I18 drives the shifting rack 23 to horizontally move, the movable frame 23 drives the guide strip 24 to slide along the guide block 22, the movable frame 23 moves into the lifting chamber 16, then the piston rod of the lifting cylinder 21 pushes the guide block 22 downwards, the guide block 22 drives the moving frame 23 to descend, the guide cylinder 32 below the inner wall of the rotary cylinder 27 on the moving frame 23 enters the cooling water tank 17, the cooling water in the cooling water tank 17 cools the preformed pipe through the through hole on the guide cylinder 32, the preformed pipe is cooled to obtain the heat-resistant reinforced HDPE double-wall corrugated pipe, the output shaft of the driving motor 25 drives the gear 26 to rotate, the gear 26 is matched with the toothed ring 28 to drive the rotary cylinder 27 to rotate, the guide cylinders 32 on the inner wall of the rotary cylinder 27 circularly lift and enter the cooling water tank 17, the cooling water cools the preformed pipe in the rest guide cylinders 32, and after the preformed pipe is completely cooled, the piston rod of the lifting cylinder 21 contracts and drives the moving frame 23 to ascend, and the piston rod of the horizontal cylinder II 19 pushes the moving frame 23 to move to the initial position through the push plate II 20.
Specifically, the heat-resistant insulating functional master batch is prepared by the following steps: the preparation method comprises the following steps of carrying out surface treatment on nano red powder in an atomizing and spraying mode by using a surface synergist and a hyper-dispersant, drying to obtain pre-treated nano red powder, weighing 35 parts by weight of block copolymerization polypropylene resin, 2 parts by weight of the pre-treated nano red powder, 2 parts by weight of nano yellow powder, 3 parts by weight of a lubricant, 3 parts by weight of a processing aid, 0.8 part by weight of an antioxidant, 1.5 parts by weight of a light stabilizer, 4 parts by weight of molybdenum dioxide and 4 parts by weight of chromium dioxide, carrying out banburying, extrusion and granulation to obtain a heat-resistant insulating functional master batch, wherein the banburying process temperature is 145 ℃, the granulation temperature is 185 ℃, the lubricant is a polyolefin oligomer, the processing aid is an ethylene copolymer, the antioxidant is a hindered phenol antioxidant, the light stabilizer is a benzotriazole ultraviolet absorbent, the hyper-dispersant is a water-soluble polymer dispersant, and the surface synergist is titanate. The anti-aging agent is diphenylamine, thiodipropionic acid diester and pentaerythritol ester in a mass ratio of 2: 1: 3 in the presence of a carrier. The dispersant is methyl amyl alcohol.
The vicat softening point of the heat-resistant reinforced HDPE double-wall corrugated pipe of example 1 was 159 ℃.
Example 2
The HDPE double-wall corrugated pipe with the enhanced heat resistance is prepared from the following raw materials in parts by weight: 130 parts of HDPE resin, 65 parts of wood powder, 4 parts of titanate coupling agent, 12 parts of ethylene propylene diene monomer, 35 parts of glass fiber, 3 parts of heat-resistant insulating master batch, 3 parts of anti-aging agent, 1.2 parts of dibenzofuran and 0.8 part of dispersing agent;
the heat-resistant reinforced HDPE double-wall corrugated pipe is prepared by the following steps:
the method comprises the following steps: drying wood powder by adopting two-stage combined pulse airflow, drying for 3.6 hours at 200 ℃ until the moisture content is lower than 250mg/kg, cooling to normal temperature, mixing with titanate coupling agent, heating to 80 ℃, stirring and dispersing for 8 minutes at 1100 r/min, and the rest steps are the same as those of the example 1.
The heat-resistant insulating functional master batch is prepared by the following steps: the preparation method comprises the following steps of carrying out surface treatment on nanometer red powder in an atomizing and spraying mode by using a surface synergist and a hyperdispersant, drying to obtain pretreated nanometer red powder, weighing 60 parts by weight of block copolymerization polypropylene resin, 4 parts by weight of pretreated nanometer red powder, 4 parts by weight of nanometer yellow powder, 6 parts by weight of a lubricant, 6 parts by weight of a processing aid, 2.4 parts by weight of an antioxidant, 5 parts by weight of a light stabilizer, 10 parts by weight of molybdenum dioxide and 10 parts by weight of chromium dioxide, carrying out banburying, extrusion and granulation to obtain a heat-resistant insulating functional master batch, wherein the banburying process temperature is 170 ℃, the granulation temperature is 205 ℃, the lubricant is a polyolefin oligomer, the processing aid is an ethylene copolymer, the antioxidant is a hindered phenol antioxidant, the light stabilizer is a benzotriazole ultraviolet synergistic absorbent, the hyperdispersant is a water-soluble polymer dispersant, and the surface agent is titanate. The anti-aging agent is diphenylamine, thiodipropionic acid diester and pentaerythritol ester in a mass ratio of 2: 1: 3 in the presence of a carrier. The dispersant is triethyl hexyl phosphoric acid.
The vicat softening point of the heat-resistant enhanced HDPE double-wall corrugated pipe of example 2 was 168 ℃.
The extrusion cooling equipment comprises a supporting table 1, a mounting frame 2 is arranged above the supporting table 1, a side shifting plate 4 is arranged above the mounting frame 2, an extrusion cylinder 5 is arranged above the side shifting plate 4, a positioning frame 11 is arranged at the top of one side of the extrusion cylinder 5, a cutting cylinder 12 is arranged on the positioning frame 11, a cutting frame 13 is arranged at the end part of a piston rod of the cutting cylinder 12, a cutting disc 15 is rotatably arranged on the cutting frame 13, a horizontal cylinder I3 is arranged below the mounting frame 2, a push plate I18 is arranged at the end part of the piston rod of the horizontal cylinder I3, a horizontal cylinder II 19 is arranged at the top of the supporting table 1, a push plate II 20 is arranged at the end part of the piston rod of the horizontal cylinder II 19, the horizontal cylinder I3 and the horizontal cylinder II 19 are oppositely arranged, a moving frame 23 is arranged between the horizontal cylinder I3 and the horizontal cylinder II 19, the moving frame 23 penetrates through a lifting chamber 16, and a lifting cylinder 21 is arranged at the top of the outer wall of the lifting chamber 16, guide block 22 is installed to lift cylinder 21 piston rod end, guide block 22 slidable mounting is on gib block 24, gib block 24 is fixed in and removes 23 outer wall tops, remove 23 inner wall tops and install a plurality of driving motor 25, driving motor 25 output shaft connects gear 26, gear 26 meshing connects ring gear 28, ring gear 28 is installed in rotatory section of thick bamboo 27 outer wall, rotatory section of thick bamboo 27 outer wall is installed two and is rotated the ring gear 29, rotatory ring gear 29 both sides are provided with two bearing frames 30, it installs leading wheel 31 to rotate on the bearing frame 30, leading wheel 31 contacts with rotatory ring gear 29, it is provided with cooling trough 17 to prop up supporting bench 1 below, a plurality of guide cylinders 32 are installed to radians such as rotatory section of thick bamboo 27 inner wall, a plurality of through-holes have been seted up on guide cylinder 32 surface.
A feeding hopper 7 is arranged above the extruding cylinder 5, the extruding cylinder 5 is communicated with the feeding hopper 7, an extruding motor 6 is arranged at one end of the extruding cylinder 5, an output shaft of the extruding motor 6 is connected with an extruding screw rod 10, and the extruding screw rod 10 is arranged in the extruding cylinder 5.
The cutting frame 13 is provided with a cutting motor 14, the output shaft of the cutting motor 14 is connected with a cutting disc 15, and a cooling water tank 17 is arranged below the lifting chamber 16.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. The HDPE double-wall corrugated pipe with the enhanced heat resistance is characterized by being prepared from the following raw materials in parts by weight: 110-130 parts of HDPE resin, 50-65 parts of wood powder, 2-4 parts of titanate coupling agent, 8-12 parts of ethylene propylene diene monomer, 20-35 parts of glass fiber, 0.5-3 parts of heat-resistant insulating master batch, 1-3 parts of anti-aging agent, 0.4-1.2 parts of dibenzofuran and 0.6-0.8 part of dispersing agent;
the heat-resistant reinforced HDPE double-wall corrugated pipe is prepared by the following steps:
drying wood flour by adopting two-stage combined pulse airflow, cooling to normal temperature, mixing with a titanate coupling agent, heating to 60-80 ℃, stirring and dispersing for 6-8 minutes at the speed of 800-1100 r/min, then adding ethylene propylene diene monomer, stirring uniformly, then automatically cooling to obtain a master batch, then uniformly mixing the master batch with HDPE resin, glass fiber, heat-resistant insulating master batch, an anti-aging agent, dibenzofuran and a dispersing agent to obtain a mixture, adding the mixture into an extrusion cooling device, cooling and extruding.
2. The heat-resistant reinforced HDPE double-wall corrugated pipe as claimed in claim 1, wherein the wood flour is dried by two-stage combined pulse airflow at 140-200 ℃ for 0.8-3.6 hours, so that the water content is lower than 250 mg/kg.
3. The double-wall corrugated pipe with enhanced heat resistance and HDPE as claimed in claim 1, wherein the heat-resistant insulation functional masterbatch is prepared by the following steps: carrying out surface treatment on the nano red powder by using a surface synergist and a hyperdispersant in an atomizing and spraying manner, drying to obtain the pretreated nano red powder for later use, weighing 38-65 parts by weight of block copolymerization polypropylene resin, 3-5 parts by weight of the pretreated nano red powder, 3-5 parts by weight of nano yellow powder, 3-8 parts by weight of a lubricant, 3-8 parts by weight of a processing aid, 0.8-3 parts by weight of an antioxidant, 2-6 parts by weight of a light stabilizer, 4-12 parts by weight of molybdenum dioxide and 4-12 parts by weight of chromium dioxide, and carrying out banburying, extrusion and granulation to obtain the heat-resistant and insulating functional master batch.
4. The heat-resistant reinforced HDPE double-wall corrugated pipe as claimed in claim 3, wherein the banburying process temperature is 150-175 ℃, the granulation temperature is 185-210 ℃, the lubricant is polyolefin oligomer, the processing aid is ethylene copolymer, the antioxidant is hindered phenol antioxidant, the light stabilizer is benzotriazole ultraviolet absorbent, the hyper-dispersant is water-soluble polymer dispersant, and the surface synergist is titanate.
5. The double-wall corrugated pipe with enhanced heat resistance made of HDPE as claimed in claim 1, wherein the aging inhibitor is diphenylamine, thiodipropionic acid diester and pentaerythritol ester in a mass ratio of 2: 1: 3 in the presence of a carrier.
6. The double wall corrugated pipe of HDPE with enhanced heat resistance as recited in claim 1, wherein the dispersant is one of methylpentanol, polyacrylamide, guar gum and triethylhexylphosphoric acid.
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Application publication date: 20210803 |