CN113007460B - Continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe - Google Patents
Continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe Download PDFInfo
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- CN113007460B CN113007460B CN202110240897.5A CN202110240897A CN113007460B CN 113007460 B CN113007460 B CN 113007460B CN 202110240897 A CN202110240897 A CN 202110240897A CN 113007460 B CN113007460 B CN 113007460B
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- 239000000835 fiber Substances 0.000 title claims abstract description 35
- 239000004033 plastic Substances 0.000 claims abstract description 109
- 229920003023 plastic Polymers 0.000 claims abstract description 109
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 61
- 239000010410 layer Substances 0.000 claims description 43
- 238000001816 cooling Methods 0.000 claims description 41
- 238000001125 extrusion Methods 0.000 claims description 29
- 239000003365 glass fiber Substances 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 19
- 238000002788 crimping Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 229920001169 thermoplastic Polymers 0.000 claims description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000004023 plastic welding Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 229920000114 Corrugated plastic Polymers 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 239000002990 reinforced plastic Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
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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
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe, which comprises an inner plastic pressure-bearing pipe, wherein the inner plastic pressure-bearing pipe is provided with a plurality of corrugated pipesThe outer wall is wound with a corrugated reinforcing pipe, a reinforcing layer is arranged in a spacing area of the corrugated reinforcing pipe, and the reinforcing layer and the corrugated reinforcing pipe are fused and attached to the outer wall of the inner-layer plastic pressure-bearing pipe. The invention is integrally wound on the outer wall of the plastic inner layer pipe in a hooping ring mode, greatly improves the effects of the integral pressure resistance, deformation resistance, impact resistance and abrasion resistance of the corrugated pipe, and especially can meet the requirements of 1600-3000 mm ultra-large pipe diameter and SN 12-24 KN/m 2 Fills the blank of the plastic rain sewage pipe.
Description
Technical Field
The invention relates to the technical field of pipes, in particular to a continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe.
Background
In the rain sewage pipeline which is used in a large quantity at present, the technology adopted in a centralized way comprises the following steps: (1) Double-wall corrugated pipes made of plastic material reinforcement and clara pipes with reinforced outer-wall plastic pipelines; (2) A metal reinforced plastic steel strip winding corrugated pipe, a rectangular steel strip winding corrugated pipe and the like.
The rainwater sewage pipeline has smaller internal pressure, the pipeline mainly bears external pressure, in order to meet and improve the requirement of bearing the external pressure and save the production of the pipeline and reduce the cost, the common practice is to enlarge the thickness of the local pipe wall outside the pipeline to improve the moment of inertia value of the pipeline structure, and then to improve the external pressure bearing strength (ring stiffness) of the pipeline, and the double-wall corrugated pipe and the external wall plastic pipeline are reinforced carat pipes. Besides the moment of inertia, the improvement of the rigidity of the pipeline ring and the improvement of the elastic modulus of the material have the same effect, and the technology is that the metal reinforced plastic steel belt is wound on the corrugated pipe, the rectangular steel belt is wound on the corrugated pipe and the like.
However, the plastic material is used as the reinforcing material, and the elastic modulus of the material is low, so that the reinforcing effect is not very obvious by improving the thickness of the pipe wall, particularly, the effect of the pipe with the pipe diameter of more than 600mm is not obvious, and the cost performance is not high due to the fact that the used material is multiplied along with the increase of the pipe diameter.
If the metal material is used as the reinforcing material, the elastic modulus of the outer ring is up to 13000MPa, the rebound force of the metal ring is huge and is easy to corrode, the wound metal ring is bound by fusing the plastic layer coated outside the ring wall and the inner plastic pipe so as to achieve the purpose of steel-plastic composite, but the fusion of the metal ring and the inner plastic pipe is also poor due to the poor strength of the plastic material, and the rebound force of the metal ring cannot be restrained under long-term use, so that the separation phenomenon of the metal ring and the inner plastic pipe is caused, and the engineering use is influenced.
The invention of China patent application number CN202010216002.X discloses a circular arc prepreg tape plate reinforced winding corrugated pipe, which comprises a plastic pressure-bearing pipe and a corrugated outer pipe, wherein the plastic pressure-bearing pipe and the corrugated outer pipe are compositely bonded together, the circular arc prepreg tape plate reinforced winding corrugated pipe has limited external compressive stress resistance, is much smaller than a rectangular corrugated pipe, and is difficult to meet 1200mm and SN8 KN/m 2 The compressive property of the rain and sewage pipe is required.
The Chinese patent application No. CN201811058931.1 discloses a thermoplastic continuous fiber prepreg braided rope hot-melt winding corrugated pipe, which is characterized in that: the hot melt winding corrugated pipe is composed of a plastic inner layer pipe and a thermoplastic continuous fiber prepreg braided rope which is continuously wound on the outer wall of the inner layer pipe. The technology directly adopts the thermoplastic continuous fiber prepreg braided rope as the reinforcement and is wound on the outer wall of the plastic inner pipe, and the pipe diameter thick wall of the manufactured rainwater and sewage is smaller due to the lack of filling of the plastic elliptic pipe, the reinforced sewage ripple effect of the fiber rope bundles is not obvious, and the ripple pipeline is optimally suitable for DN 300-600 mm and SN8 KN/m 2 Strength use requirements.
Disclosure of Invention
The invention aims to provide a continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe, which solves the problem of insufficient external pressure resistance of the existing rain sewage pipeline.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe, which comprises an inner plastic pressure-bearing pipe, wherein a corrugated reinforcing pipe is wound on the outer wall of the inner plastic pressure-bearing pipe along the length direction, a reinforcing layer is arranged in a spacing area of the corrugated reinforcing pipe, and the reinforcing layer and the corrugated reinforcing pipe are fused and attached to the outer wall of the inner plastic pressure-bearing pipe;
the corrugated reinforced pipe comprises a plastic inner core, wherein a winding stirrup is arranged on the outer wall of the plastic inner core, and the winding stirrup is wound and fused on the outer wall of the plastic inner core in a single-layer unidirectional spiral winding compact arrangement state or a multi-layer crossed compact arrangement state by adopting thermoplastic continuous fiber prepreg ropes.
Further, the plastic inner core is a solid oval tube or a hollow oval tube.
Further, when the plastic inner core is a hollow elliptic pipe, a cross or vertical bar-shaped reinforcing rib is arranged in the hollow elliptic pipe.
Furthermore, the reinforcing layer is welded and stuck on the outer wall of the inner plastic pressure-bearing pipe by adopting a thermoplastic continuous fiber prepreg tape according to the winding angle of the corrugated reinforcing pipe.
Further, the outer wall of the inner plastic pressure-bearing pipe is provided with a spiral groove along the length direction, and the corrugated reinforcing pipe is wound in the spiral groove.
The manufacturing equipment of the continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe comprises a first extruder, a first cooling device, a plate tractor, a plate crimping machine, a plate seam plastic welding machine, a corrugated reinforced pipe processing device, a reinforced layer processing device, a second cooling device, a pipe cutting machine and a pipe material frame which are sequentially arranged according to the processing sequence; a melt pump and an extrusion flat die are arranged on the extrusion end of the first extruder;
the corrugated reinforced pipe processing device comprises a second extruder, a third cooling device, a prepreg rope bundle unreeling frame, a prepreg rope bundle disc crimping machine, a cooling water tank, a corrugated reinforced pipe tractor and a first heating device; a plastic inner core extrusion die is arranged on the extrusion end of the second extruder;
the reinforcing layer processing device comprises a third extruder glass fiber rope bundling reel and a second heating device; and the extrusion end of the third extruder is provided with a reinforcing layer extrusion die.
Further, the first cooling device is arranged as a cooling spray water tank with a plastic plate shaping sleeve;
the second cooling device is arranged to cool the spray nozzle.
The third cooling device is arranged as a cooling spray vacuum water tank with a built-in sizing sleeve;
the first heating device and the second heating device are arranged as heating guns.
A method for producing a continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe comprises the following steps:
step one, starting a first extruder, a melt pump connected with the first extruder and an extrusion flat die, and producing a plastic melt with a groove;
starting a first cooling device to cool and shape the plastic plate with the groove;
starting a plate traction machine to traction the plate;
starting a plate crimping machine, and crimping the plate into a circular tube;
starting a plate seam plastic welding machine, and welding a circular pipe seam to manufacture an inner layer plastic pressure-bearing pipe;
step two, starting a second extruder to produce an inner core melt in advance through a plastic inner core extrusion die, cooling and shaping the inner core melt through a third cooling device to form a plastic inner core, placing a glass fiber prepreg rope on a prepreg rope bundle unreeling frame, guiding the glass fiber prepreg rope and the cooled plastic inner core to a prepreg rope bundle disc crimping machine together for processing, and cooling and shaping through a cooling water tank to form a corrugated pipe; the corrugated pipe is conveyed to the outer wall of the inner-layer plastic pressure-bearing pipe under the action of the corrugated reinforced pipe tractor and is wound, melted and stuck on the outer wall of the inner-layer plastic pressure-bearing pipe through the first heating device.
Placing the glass fiber ropes on a glass fiber rope placing reel, starting a third extruder, extruding a plurality of glass fiber ropes and plastic connecting strips from a reinforcing layer extrusion die by using melt extruded by the third extruder, cooling to prepare continuous glass fiber rope belts arranged side by side, winding and fusing the continuous glass fiber rope belts on the outer wall of an inner plastic pressure-bearing pipe by using a second heating device;
step four, a second cooling device is started to cool and shape the continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe;
step five, starting a pipe cutting machine, and cutting the continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention is integrally wound on the outer wall of the plastic inner layer pipe in a hooping ring mode, greatly improves the effects of the integral pressure resistance, deformation resistance, impact resistance and abrasion resistance of the corrugated pipe, and especially can meet the requirements of 1600-3000 mm ultra-large pipe diameter and SN 12-24 KN/m 2 Fills the blank of the plastic rain sewage pipe.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a schematic view of a continuous fiber rope reinforced elliptical stirrup joint ring bellows of the present invention;
FIG. 2 is a schematic view of the structure of the corrugated reinforced pipe of the present invention;
FIG. 3 is a schematic diagram of the arrangement of the production facility of the present invention;
FIG. 4 is a schematic cross-sectional view of an extrusion flat die of the present invention;
FIG. 5 is a schematic diagram of the production equipment layout of the corrugated reinforcing pipe processing apparatus of the present invention;
FIG. 6 is a schematic cross-sectional view of a plastic core extrusion die with in-line ribs of the present invention;
FIG. 7 is a schematic cross-sectional view of a plastic core extrusion die with cross-shaped stiffening ribs of the present invention;
FIG. 8 is a schematic diagram of the production equipment layout of the enhancement layer processing apparatus of the present invention;
FIG. 9 is a schematic cross-sectional view of a reinforcing layer extrusion die of the present invention.
Reference numerals illustrate: 1. an inner plastic pressure-bearing pipe; 101. a spiral groove; 2. a corrugated reinforcing tube; 201. a plastic inner core; 202. winding stirrups; 3. a reinforcing layer; 4. a first extruder; 401. a melt pump; 402. extruding a flat die; 5. a first cooling device; 6. a sheet tractor; 7. a plate crimping machine; 8. a plate seam plastic welding machine; 9. a corrugated reinforcing pipe processing device; 901. a second extruder; 902. extruding a plastic inner core; 903. a third cooling device; 904. a presoaked rope bundle unreeling frame; 905. a presoaked rope bundle disc crimping machine; 906. a cooling water tank; 907. a bellows-type reinforced pipe tractor; 908. a first heating device; 10. a reinforcing layer processing device; 1001. a third extruder; 1002. a reinforcing layer extrusion die; 1003. a glass fiber rope reel; 1004. a second heating device; 11. a second cooling device; 12. a pipe cutting machine;
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 2, in this embodiment, a continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe is disclosed, which comprises an inner plastic pressure-bearing pipe 1, wherein a corrugated reinforcing pipe 2 is wound on the outer wall of the inner plastic pressure-bearing pipe 1 along the length direction, a reinforcing layer 3 is arranged in a spacing area of the corrugated reinforcing pipe 2, and the reinforcing layer 3 and the corrugated reinforcing pipe 2 are fused and attached on the outer wall of the inner plastic pressure-bearing pipe 1. The corrugated reinforced pipe 2 prevents the inner plastic pressure-bearing pipe 1 from deforming in a hoop mode, and then the purpose of improving the external pressure bearing strength (ring rigidity) of the pipeline is achieved.
In order to facilitate positioning when the corrugated reinforcing pipe 2 is wound, a spiral groove 101 is formed on the outer wall of the inner plastic pressure-bearing pipe 1 along the length direction, the corrugated reinforcing pipe 2 is wound in the spiral groove 101, and in this embodiment, the cross section of the spiral groove 101 is a rectangular groove.
The corrugated reinforced pipe 2 comprises a plastic inner core 201, and winding stirrups 202 are spirally wound on the outer wall of the plastic inner core 201. The winding stirrup 202 is wound and fused on the outer wall of the plastic inner core 201 in a single-layer unidirectional tight arrangement state or a multi-layer crossed tight arrangement state by using thermoplastic continuous fiber prepreg ropes. The winding stirrup 202 prevents the plastic core 201 from deforming in response to external forces.
The plastic core 201 is a solid oval tube or a hollow oval tube. The plastic core 201 is easily wound with the outer prepreg strands in an oval design and has the best mechanical properties under external pressure. When the plastic core 201 is a hollow oval tube, cross-shaped and vertical bar-shaped reinforcing ribs can be added in the hollow oval tube to improve the structural strength thereof.
The reinforcing layer 3 is formed by fusing thermoplastic continuous fiber prepreg ropes on the outer wall of the inner plastic pressure-bearing pipe 1 according to the winding angle of the corrugated reinforcing pipe 2. The reinforcing layer 3 limits the deformation of the inner plastic pressure-bearing pipe 1 in the form of stirrups, and simultaneously increases the wall thickness of the inner plastic pressure-bearing pipe 1, thereby greatly improving the overall rigidity of the corrugated pipe.
The thermoplastic continuous fiber prepreg rope bundles for manufacturing the reinforcing layer 3 are rectangular row strips which are formed by integrally dipping and coating fiber tows with the surfaces modified by a silane coupling agent with thermoplastic melt, and then are formed into round strips with the wire diameters of 10-30 mm or rectangular single strips with the wire diameters of (10-30) x (20-30) mm or rectangular single strips with the wire diameters of 5-10 rope bundles in a fusion manner.
As shown in fig. 3 and 4, the present embodiment also discloses a manufacturing apparatus for a continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe, which comprises a first extruder 4, a first cooling device 5, a plate tractor 6, a plate curler 7, a plate seam plastic welding machine 8, a corrugated reinforced pipe processing device 9, a reinforced layer processing device 10, a second cooling device 11, a pipe cutting machine 12 and a pipe material frame 13 which are sequentially arranged in the processing order.
A melt pump 401 and an extrusion flat die 402 are arranged on the extrusion end of the first extruder 4; the first cooling device 5 is arranged as a cooling spray water tank with a plastic plate shaping sleeve; the second cooling device 11 is arranged to cool the spray nozzle.
As shown in fig. 5, the bellows reinforcing pipe processing apparatus 9 includes a second extruder 901, a plastic inner core extrusion die 902, a third cooling apparatus 903, a prepreg strand unreeling frame 904, a prepreg strand disc crimper 905, a cooling water tank 906, a bellows reinforcing pipe tractor 907, and a first heating apparatus 908; a plastic core extrusion die 902 is mounted on the extrusion end of a second extruder 901.
The third cooling device 903 is provided as a cooling spray vacuum water tank 903 with a built-in sizing sleeve; a heating die with hollow circular holes is arranged at the center of the prepreg rope bundle disc crimping machine 905, and a plurality of hollow circular holes are arranged on the circumference of the heating die; the first heating device 908 is provided as a heating gun.
As can be seen from the foregoing, when the plastic core 201 is a hollow oval tube, cross-shaped and vertical bar-shaped reinforcing ribs can be added to the hollow oval tube as shown in fig. 6 and 7 to improve its structural strength, the plastic core extrusion die 902 includes an outer die and an inner core die.
As shown in fig. 8 and 9, the reinforcing layer processing apparatus 10 includes a third extruder 1001, a reinforcing layer extrusion die 1002, a glass fiber rope payout reel 1003, and a second heating apparatus 1004; the second heating device 1004 is provided as a heating gun. The reinforcing layer extrusion die 1002 is mounted on the extrusion end of the third extruder 1001.
The embodiment also discloses a production method of the continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe, which comprises the following steps:
step one, starting a first extruder 4, a melt pump 401 and an extrusion flat die 402 connected with the first extruder, and producing a plastic melt with grooves;
starting a first cooling device 5, and cooling and shaping the plastic plate with the groove;
starting a plate tractor 6 to draw the plate;
starting a plate crimping machine 7, and crimping the plate into a circular tube;
and starting a plate seam plastic welding machine 8, and welding a circular pipe seam to manufacture the inner plastic pressure-bearing pipe 1.
And step two, starting a corrugated reinforced pipe processing device 9, and winding and fusing the reinforced pipe on the outer wall of the inner plastic pressure-bearing pipe 1.
Specifically, a second extruder 901 is started to produce an inner core melt in advance through a plastic inner core extrusion die 902, the inner core melt is cooled and shaped through a third cooling device 903 to form a plastic inner core 201, a glass fiber prepreg rope is placed on a prepreg rope bundle unreeling frame 904, the glass fiber prepreg rope and the cooled plastic inner core 201 are guided to a prepreg rope bundle disc crimping machine 905 together for processing, and a corrugated pipe 2 is formed through cooling and shaping of a cooling water tank 906; the corrugated pipe 2 is conveyed to the outer wall of the inner plastic pressure-bearing pipe 1 under the action of the corrugated reinforcing pipe tractor 907, and is wound and fused on the outer wall of the inner plastic pressure-bearing pipe 1 through the first heating device 908. It should be noted that, the crimping machine 7 in the first step always drives the inner plastic pressure-bearing tube 1 to rotate, and the corrugated tube 2 is wound in the spiral groove 101 during the rotation of the inner plastic pressure-bearing tube 1.
And thirdly, starting the reinforcing layer processing device 10, and winding and fusing the reinforcing layer 3 on the outer wall of the inner layer plastic pressure-bearing pipe 1 in the gap of the corrugated reinforcing pipe 2.
Specifically, the third extruder 1001 is started, the melt extruded by the third extruder 1001 is coated with a plurality of glass fiber ropes and plastic connecting strips, the glass fiber ropes and the plastic connecting strips are extruded from the reinforced layer extrusion die 1002, the glass fiber ropes are cooled to be continuous glass fiber rope belts arranged side by side, and the continuous glass fiber rope belts are wound and fused on the outer wall of the inner plastic pressure-bearing pipe 1 through the second heating device 1004. The crimping machine 7 in the first step always drives the inner plastic pressure-bearing pipe 1 to rotate, and the continuous glass fiber rope belt is wound in the process of rotating the inner plastic pressure-bearing pipe 1.
Step four, starting a second cooling device 11, and cooling and shaping the continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe;
step five, starting a pipe cutting machine, and cutting the continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (4)
1. The utility model provides a continuous fiber strand reinforcing oval stirrup section ring bellows which characterized in that: the corrugated plastic pressure-bearing pipe comprises an inner plastic pressure-bearing pipe (1), wherein a corrugated reinforcing pipe (2) is wound on the outer wall of the inner plastic pressure-bearing pipe (1) along the length direction, a reinforcing layer (3) is arranged in a spacing area of the corrugated reinforcing pipe (2), and the reinforcing layer (3) and the corrugated reinforcing pipe (2) are fused and attached to the outer wall of the inner plastic pressure-bearing pipe (1);
the corrugated reinforced pipe (2) comprises a plastic inner core (201), wherein a winding stirrup (202) is arranged on the outer wall of the plastic inner core (201), and the winding stirrup (202) is wound and fused on the outer wall of the plastic inner core (201) in a single-layer unidirectional spiral winding compact arrangement state or a multi-layer crossed compact arrangement state by adopting thermoplastic continuous fiber prepreg ropes;
the outer wall of the inner plastic pressure-bearing pipe (1) is provided with a spiral groove (101) along the length direction, and the corrugated reinforcing pipe (2) is wound in the spiral groove (101);
the production method of the continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe is characterized by comprising the following steps of: the method comprises the following steps:
step one, starting a first extruder (4), and a melt pump (401) and an extrusion flat die (402) which are connected with the first extruder to produce a plastic melt with grooves;
starting a first cooling device (5) to cool and shape the plastic plate with the groove;
starting a plate traction machine (6) to draw the plate;
starting a plate crimping machine (7), wherein the crimped plate is a round tube;
starting a plate seam plastic welding machine (8), and welding a circular pipe seam to manufacture an inner layer plastic pressure-bearing pipe (1); the plate crimping machine (7) always drives the inner plastic pressure-bearing pipe (1) to rotate, the corrugated reinforcing pipe (2) is wound in the process of rotating the inner plastic pressure-bearing pipe (1), and the corrugated reinforcing pipe (2) is wound in the spiral groove (101);
step two, a second extruder (901) is started to produce an inner core melt in advance through a plastic inner core extrusion die (902), the inner core melt is cooled and shaped through a third cooling device (903) to form a plastic inner core (201), a glass fiber prepreg rope is placed on a prepreg rope bundle unreeling frame (904), the glass fiber prepreg rope and the cooled plastic inner core (201) are guided to a prepreg rope bundle disc crimping machine (905) together for processing, and a corrugated reinforcing pipe (2) is formed through cooling and shaping of a cooling water tank (906); the corrugated reinforced pipe (2) is conveyed to the outer wall of the inner-layer plastic pressure-bearing pipe (1) under the action of a corrugated reinforced pipe tractor (907), and is wound, melted and pasted on the outer wall of the inner-layer plastic pressure-bearing pipe (1) through a first heating device (908);
placing the glass fiber ropes on a glass fiber rope placing reel (1003), starting a third extruder (1001), extruding a plurality of glass fiber ropes and plastic connecting strips from a reinforcing layer extrusion die (1002) by using melt extruded by the third extruder (1001), cooling to prepare continuous glass fiber rope belts arranged side by side, winding and fusing the continuous glass fiber rope belts on the outer wall of an inner plastic pressure-bearing pipe (1) through a second heating device (1004);
step four, a second cooling device (11) is started to cool and shape the continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe;
step five, starting a pipe cutting machine, and cutting the continuous fiber rope bundle reinforced elliptical stirrup joint ring corrugated pipe;
the plastic inner core (201) is a solid oval tube or a hollow oval tube.
2. The continuous fiber strand reinforced elliptical stirrup joint bellows of claim 1, wherein: when the plastic inner core (201) is a hollow elliptic pipe, a cross or vertical bar-shaped reinforcing rib is arranged in the hollow elliptic pipe.
3. The continuous fiber strand reinforced elliptical stirrup joint bellows of claim 1, wherein: the reinforcing layer (3) is welded and stuck on the outer wall of the inner-layer plastic pressure-bearing pipe (1) according to the winding angle of the corrugated reinforcing pipe (2) by adopting a thermoplastic continuous fiber prepreg tape.
4. The continuous fiber strand reinforced elliptical stirrup joint bellows of claim 1, wherein:
the first cooling device (5) is arranged as a cooling spray water tank with a plastic plate shaping sleeve;
the second cooling device (11) is arranged to cool the spray nozzle;
the third cooling device (903) is arranged as a cooling spray vacuum water tank (903) with a built-in sizing sleeve;
the first heating device (908) and the second heating device (1004) are configured as heating guns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110240897.5A CN113007460B (en) | 2021-03-04 | 2021-03-04 | Continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110240897.5A CN113007460B (en) | 2021-03-04 | 2021-03-04 | Continuous fiber rope reinforced elliptical stirrup joint ring corrugated pipe |
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| CN113007460A CN113007460A (en) | 2021-06-22 |
| CN113007460B true CN113007460B (en) | 2023-05-05 |
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| GB1488975A (en) * | 1974-03-29 | 1977-10-19 | Muanyagipari Kutato Intezet | Flexible hose of high pressure-bearing capability and process for the production thereof |
| JP4557680B2 (en) * | 2004-11-05 | 2010-10-06 | エバック株式会社 | Drainage hose and manufacturing method thereof |
| WO2013070470A1 (en) * | 2011-11-09 | 2013-05-16 | Stryker Corporation | Medical device with bi-component fiber sleeve |
| CN203757206U (en) * | 2014-04-09 | 2014-08-06 | 张汝忠 | Steel belt spirally wrapped and welded corrugated steel-plastic composite pipe with holes and grooves |
| CN207454963U (en) * | 2017-05-17 | 2018-06-05 | 东莞市联谊管业有限公司 | An inner rib reinforced outer corrugated plastic winding structure wall pipe |
| CN108506594A (en) * | 2018-05-29 | 2018-09-07 | 凌志环保股份有限公司 | HDPE enhances ripple type plastic wall pipe |
| CN109027446B (en) * | 2018-09-12 | 2021-04-13 | 上海英泰塑胶股份有限公司 | Hot-melt winding corrugated pipe of thermoplastic continuous fiber prepreg braided rope and manufacturing equipment thereof |
| CN110630828A (en) * | 2019-10-10 | 2019-12-31 | 张家港戴恩机械有限公司 | A Hollow Wall Porous Reinforced Wound Bellows |
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2021
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