CN110588032B - Thermal state winding solid corrugated pipe and section bar thereof and manufacturing method thereof - Google Patents

Abstract

The invention relates to a thermal-state winding solid corrugated pipe, a section bar thereof and a manufacturing method thereof. Comprises a first section bar and a second section bar; the first section bar comprises supporting ribs and a first thermal state coating layer; the first section bar comprises a connecting bar, a first half-wave crest bar and a second half-wave crest bar; the second section bar comprises a buckle plate and a second thermal state coating layer; the middle part of the second section bar is provided with a buckling groove, and the shape and the size of the buckling groove are matched with those of the outer wall of the small wave crest structure formed by the first half wave crest strip and the second half wave crest strip which are spliced together. The section bar adopts the first section bar and the second section bar with solid wall structures, and the section bar can facilitate the cooling and forming of the pipe, improve the production speed of the pipe and improve the welding quality of the pipe; the solid corrugated pipe is of a solid wall structure, has high ring rigidity, good impact damage resistance and excellent ring flexibility; the manufacturing method of the corrugated pipe adopts thermal state winding to compound all units together, has high welding strength and basically has no residual stress problem.

Description

Thermal state winding solid corrugated pipe and section bar thereof and manufacturing method thereof

Technical Field

The invention relates to the field of pipes, in particular to a thermal-state winding solid corrugated pipe, a section bar thereof and a manufacturing method thereof.

Background

At present, the pipes in the fields of water drainage, sewage discharge and the like are generally steel-plastic composite spiral corrugated pipes and HDPE double-wall corrugated pipes, wherein the steel-plastic composite spiral corrugated pipes have the following defects: 1. the adhesion between steel and plastic is poor, and in the processing process, the steel belt has extremely large internal stress, so that the steel and plastic are seriously separated due to the influence of factors such as thermal expansion and cold contraction after the pipe is placed outdoors for a certain time, and the ring rigidity of the pipe is seriously reduced after the pipe is buried, thereby causing engineering accidents; 2. because the corrosion resistance of the steel belt is poor, the steel belt is easy to corrode in the production and construction processes, so that the pipe is damaged to cause engineering accidents; 3. the impact performance is poor, and when the steel-plastic composite pipe is impacted by external force, the steel-plastic is easy to delaminate; 4. the damage resistance is poor, the wave crest of the pipe is of a single-wave crest structure, so long as the wave crest is damaged by external force, water liquid or foreign matters enter the wave cavity, corrode the steel belt and damage the inner layer, and finally the whole damage of the pipe is caused.

HDPE double-wall bellows have the following disadvantages: 1. the wave crest of the pipe is of a single-layer and single-wave crest structure, the wall thickness of the inner layer and the wall thickness of the outer layer are thinner, the whole wave form is hollow, and the impact resistance and the damage resistance are poor; 2 factor wave The peak is single-layer and single-wave peak structure, the compressive property of the pipe is poor, thus the integral ring stiffness is low, and is generally not more than 8kN/m ² If the ring rigidity is required to be improved, the unit material consumption is required to be greatly increased, and the cost is high; 3. the investment of production equipment is high, which is generally more than 8 times of that of the threaded corrugated pipe equipment, and the larger the caliber is, the more limited the production is, so that the production cost is high; meanwhile, the technology is limited, and the pipe with the diameter exceeding 1500mm cannot be produced at present.

In addition, the production method of the pipe is complicated, the process operation is complex, and the quality stability of the product is poor; the requirements on materials are high, the material selection range is narrow, serious product quality hidden trouble can be brought about by slight fluctuation of the materials, even products are scrapped, and the production cost is high; the equipment has poor safety, the equipment adopts a continuous uninterrupted extrusion design, the speed matching of the main and auxiliary materials is very important, and the product wall thickness is insufficient but cannot be detected due to the slightly different speeds, so that great potential safety hazards are buried for engineering application; in addition, the equipment adopts a continuous extrusion design, and a plurality of rotating parts exist in each link, so serious safety accidents are possibly caused by a little carelessness, and hidden danger is brought to property and personal safety.

Disclosure of Invention

The invention aims at: the section bar of the corrugated pipe adopts a first section bar and a second section bar with solid wall structures, the section bar can facilitate the cooling and forming of the pipe, the production speed of the pipe is improved, the production cost is reduced, and in addition, each section bar contains a thermal state coating layer, so that the welding quality of the pipe can be improved, and the welding strength of the pipe is improved; the solid corrugated pipe is of a solid wall structure, has high ring rigidity, good impact damage resistance and excellent ring flexibility, can not generate reverse bending condition, and has the ring flexibility of more than 70 percent; the manufacturing method of the corrugated pipe combines all units together by adopting thermal state winding, has high welding strength, basically has no residual stress problem, and is simple and convenient to operate and stable in process.

The invention is realized in the following way:

scheme one:

the utility model provides a section bar of solid bellows of hot winding which characterized in that: comprises a first section bar and a second section bar which extend along the longitudinal direction in a straight line; the first section bar comprises a solid supporting rib and a first thermal state coating layer wrapping the outer wall of the supporting rib; on a cross section transversely cut along a first section, the first section comprises a connecting bar which is positioned in the middle and horizontally arranged transversely, a first half-wave crest bar fixedly arranged at one transverse end of the connecting bar, and a second half-wave crest bar fixedly arranged at the other transverse end of the connecting bar; the top position of the first half wave crest strip is level with the top position of the second half wave crest strip, the bottom of the first half wave crest strip is horizontally connected to one transverse end of the bottom of the connecting strip, the bottom of the second half wave crest strip is horizontally connected to the other transverse end of the bottom of the connecting strip, the side surface of the first half wave crest strip, which is far away from the transverse side of the connecting strip, is a first splicing surface, and the side surface of the second half wave crest strip, which is far away from the transverse side of the connecting strip, is a second splicing surface; in the process of winding the first section bar along the spiral direction, a first splicing surface in a first half wave crest strip of the first section bar wound to the next circle can be spliced with a second splicing surface in a second half wave crest strip of the first section bar of the previous circle to form a small wave crest structure of the corrugated pipe;

The second section bar comprises a solid buckle plate and a second thermal state coating layer coated on the outer wall of the buckle plate; on the cross section of transversely cutting along the second section bar, the second section bar upwards protrudes and is big crest form, and the middle part of second section bar is equipped with the lock groove of downwardly opening and extending along its longitudinal direction, the shape size of lock groove cooperatees with the shape size of the outer wall of the little crest structure that first half crest strip and second half crest strip that splice together formed, so that the second section bar is in the winding process along the spiral direction, and the second section bar can just in time lock on the little crest structure that first half crest strip and second half crest strip that splice together formed and bond each other and form a big crest structure of bellows.

Preferably, in a cross section taken transversely along the first profile, the first profile further comprises a reinforcing peak strip disposed above the connecting strip and located between the first half-wave peak strip and the second half-wave peak strip, the top position of the reinforcing peak strip being lower than the top position of the first half-wave peak strip in the vertical direction.

Scheme II:

the utility model provides a solid bellows of hot winding which characterized in that: the corrugated pipe comprises a corrugated pipe body, wherein the corrugated pipe body is formed by winding and bonding a first section bar and a second section bar along a spiral direction and is provided with a continuous staggered peak structure and a trough structure, the first section bar is wound to a first half peak strip of the next circle in the spiral direction winding process, a first splicing surface in the first half peak strip of the next circle is spliced with a second splicing surface in a second half peak strip of the last circle and is bonded with the second splicing surface of the second half peak strip of the last circle to form a small peak structure of the corrugated pipe body, the second section bar is buckled and bonded to the small peak structure to form a large peak structure of the corrugated pipe body in the spiral direction winding process, the small peak structure and the large peak structure are combined to form the peak structure of the corrugated pipe body, and the trough structure is formed between two adjacent peak structures.

Preferably, the thermal state winding solid corrugated pipe further comprises a socket section arranged at one axial end of the corrugated pipe body and a socket section arranged at the other axial end of the corrugated pipe body and used for being connected with the socket section of the other corrugated pipe in a matched mode; the socket section comprises a socket transition section, a socket matching section and a socket limiting section which are sequentially arranged from the corrugated pipe body to the side where the port of the socket section is located along the axial extension direction of the socket section; the outer peripheral walls of the socket matching section and the socket limiting section are in truncated conical shapes, and the outer diameter of one side close to the port of the socket section is smaller than the outer diameter of one side far away from the port of the socket section; the inclination of the outer peripheral wall of the socket limiting section is larger than that of the outer peripheral wall of the socket matching section, and the socket transition section is in transitional connection between the corrugated pipe body and the socket matching section; the bellmouth section comprises a bellmouth transition section, a bellmouth limiting section and a bellmouth matching section which are sequentially arranged from the bellows body to the side where the port of the bellmouth section is located along the axial extension direction of the bellmouth section; the shape and the size of the inner peripheral walls of the socket matching section and the socket limiting section are respectively in one-to-one correspondence with the shape and the size of the outer peripheral walls of the socket matching section and the socket limiting section, the inner peripheral walls of the socket matching section and the socket limiting section are in truncated cone shapes, and the outer diameter of one side close to the port of the socket section is larger than the outer diameter of one side far away from the port of the socket section; the inclination of the inner peripheral wall of the bellmouth limiting section is larger than that of the inner peripheral wall of the bellmouth matching section, the bellmouth transition section is in transitional connection between the corrugated pipe body and the bellmouth limiting section, the inner peripheral wall of the bellmouth matching section is further provided with more than one sealing ring mounting groove which is coaxially arranged on the inner peripheral wall of the bellmouth matching section in a surrounding mode and is used for placing sealing rings in an axial direction interval distribution mode, and the thermal-state winding solid corrugated pipe further comprises an anti-falling assembly which is used for preventing the spigot section from falling out along the axial direction after the socket section and the bellmouth section are matched and connected.

Preferably, the anti-drop assembly comprises more than two spiral guide lines which are arranged on the outer peripheral wall of the socket matching section, which is close to the position of the socket transition section, and uniformly distributed along the same circumferential direction at intervals, and spiral guide grooves which are arranged on the inner peripheral wall of the socket matching section, which is close to the port position, and are corresponding to the spiral guide lines in shape, size and number and are used for facilitating the screwing in of the spiral guide lines and preventing the socket section from being dropped out along the axial direction.

Preferably, the spiral angle of the spiral guide line is 2-15 degrees and is the same as the spiral direction of the corrugated pipe body.

Scheme III:

a manufacturing method of a hot winding solid corrugated pipe is characterized in that: the method comprises the following steps:

(1) melting the materials of the supporting ribs and the pinch plates, and extruding the supporting ribs and the pinch plates through two extruders respectively;

(2) penetrating the supporting rib into a cladding mold cavity provided with a thermal cladding molten material, and performing thermal cladding to wrap the first thermal cladding on the outer wall of the supporting rib, so as to manufacture a first section bar; in addition, the feeding device is started to drive the supporting ribs to continuously enter the coating layer mould while hot coating, the supporting ribs are wound on the outer wall of the inner sizing mould and do spiral motion along with the operation of the inner sizing mould, so that the adjacent first half-wave crest strips and second half-wave crest strips are mutually spliced and are adhered together through the first hot coating layer of the first splicing surface and the second splicing surface, and the corrugated pipe body forms a small crest structure and a trough structure which are continuously staggered;

(3) Penetrating the pinch plate into an inner cavity of a cladding mold provided with a thermal cladding molten material, and performing thermal cladding to wrap a second thermal cladding on the outer wall of the pinch plate, thereby manufacturing a second section bar; the feeding device is started to drive the buckle plate to continuously enter the coating layer mould while the thermal state is coated, so that the manufactured second section bar is continuously molded and output from the coating layer mould, the buckling groove of the second section bar is buckled on the small peak structure which is molded in a winding way, the small peak structure is buckled with the first thermal state coating layer of the small peak structure through the second thermal state coating layer of the second section bar in a spiral way along with the operation of the internal diameter mould, and the large peak structure buckled on the small peak structure is formed by the corrugated pipe body;

(4) cutting off the supporting ribs and the pinch plates and closing the feeding device after the corrugated pipe body is wound to the required length;

(5) and (3) after the pipe prepared in the step (4) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe. Wherein the shaping is mainly performed on the ports of the pipes.

Scheme IV:

a manufacturing method of a hot winding solid corrugated pipe is characterized in that: the method comprises the following steps:

(1) melting the materials of the supporting ribs and the pinch plates, and extruding the supporting ribs and the pinch plates through two extruders respectively;

(2) extruding a hot blank for manufacturing the socket section of the corrugated pipe, winding the hot blank around the periphery of the socket end of an inner sizing die, heating the surface of the inner sizing die in the winding operation process, controlling the temperature to be 180-250 ℃, and winding the hot blank to the thickness and length required by the socket section to generate the socket section;

(3) penetrating the supporting rib into a cladding mold cavity provided with a thermal cladding molten material, and performing thermal cladding to wrap the first thermal cladding on the outer wall of the supporting rib, so as to manufacture a first section bar; starting a feeding device to drive a supporting rib to continuously enter a cladding layer die while hot cladding, enabling a first splicing surface of a first half wave crest strip of a manufactured first section to be clung to a socket section port formed by winding, continuing winding on the outer wall of an inner sizing die, and performing spiral movement along with the operation of the inner sizing die; in the spiral movement process of the first section bar, adjacent first half-wave crest strips and second half-wave crest strips are spliced with each other and are bonded together through a first thermal state coating layer of a first splicing surface and a second splicing surface, so that the corrugated pipe body forms a small crest structure and a trough structure which are continuously staggered; extruding a thermal state material blank to wrap and cover the first half wave crest strip at the head end of the corrugated pipe body while continuing to wrap after the first splicing surface of the first half wave crest strip of the manufactured first section is clung to the port of the wrapped and formed socket section;

(4) Penetrating the pinch plate into an inner cavity of a cladding mold provided with a thermal cladding molten material, and performing thermal cladding to wrap a second thermal cladding on the outer wall of the pinch plate, thereby manufacturing a second section bar; the feeding device is started to drive the buckle plate to continuously enter the coating layer mould while the thermal state is coated, so that the manufactured second section bar is continuously molded and output from the coating layer mould, the buckling groove of the second section bar is buckled on the small peak structure which is molded in a winding way, the small peak structure is buckled with the first thermal state coating layer of the small peak structure through the second thermal state coating layer of the second section bar in a spiral way along with the operation of the internal diameter mould, and the large peak structure buckled on the small peak structure is formed by the corrugated pipe body;

(5) cutting off the supporting ribs and the pinch plates and closing the feeding device after the corrugated pipe body is wound to the required length, extruding a thermal state blank for manufacturing the socket section, tightly wrapping the thermal state blank on the periphery of a second half wave crest strip at the tail end of the corrugated pipe body, and continuously winding the second half wave crest strip on the outer wall of the inner sizing die to manufacture the socket section of the corrugated pipe;

(6) And (3) after the pipe prepared in the step (5) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe. Wherein the modification mainly comprises modification of the bell mouth section, the spigot section, the spiral guide groove and the spiral guide grain on the bell mouth section and the spigot section.

Scheme five:

a manufacturing method of a hot winding solid corrugated pipe is characterized in that: the method comprises the following steps:

(1) melting the materials of the supporting ribs and the pinch plates, and extruding the supporting ribs and the pinch plates through two extruders respectively;

(2) penetrating the supporting rib into a cladding mold cavity provided with a thermal cladding molten material, and performing thermal cladding to wrap the first thermal cladding on the outer wall of the supporting rib, so as to manufacture a first section bar; in addition, the feeding device is started to drive the supporting ribs to continuously enter the cladding layer mould while the hot cladding is carried out, and then the supporting ribs are wound on the outer wall of the inner sizing mould and do spiral movement along with the operation of the inner sizing mould; in the spiral movement process of the first section bar, adjacent first half-wave crest strips and second half-wave crest strips are spliced with each other and are bonded together through a first thermal state coating layer of a first splicing surface and a second splicing surface, so that the corrugated pipe body forms a small crest structure and a trough structure which are continuously staggered;

(3) Penetrating the pinch plate into an inner cavity of a cladding mold provided with a thermal cladding molten material, and performing thermal cladding to wrap a second thermal cladding on the outer wall of the pinch plate, thereby manufacturing a second section bar; the feeding device is started to drive the buckle plate to continuously enter the coating layer mould while the thermal state is coated, so that the manufactured second section bar is continuously molded and output from the coating layer mould, the buckling groove of the second section bar is buckled on the small peak structure which is molded in a winding way, the small peak structure is buckled with the first thermal state coating layer of the small peak structure through the second thermal state coating layer of the second section bar in a spiral way along with the operation of the internal diameter mould, and the large peak structure buckled on the small peak structure is formed by the corrugated pipe body;

(4) cutting off the supporting ribs and the pinch plates and closing the feeding device after the corrugated pipe body is wound to the required length;

(5) extruding a thermal state blank for manufacturing the socket section of the corrugated pipe, and continuously winding the thermal state blank on the outer wall of the inner sizing die to manufacture the socket section of the corrugated pipe after the thermal state blank is tightly wrapped on the periphery of the second half wave crest strip at the tail end of the corrugated pipe body; the surface of the inner diameter-fixed die is subjected to surface treatment by heating in the winding operation process of the step, and the temperature is controlled at 180-250 ℃;

(6) Extruding a thermal state blank for manufacturing the bellmouth section of the corrugated pipe, winding the thermal state blank around the periphery of the bellmouth end of the inner sizing die, and winding the thermal state blank around the periphery of a first half wave crest strip wrapped at the head end of the corrugated pipe body to generate the bellmouth section; the surface of the inner diameter-fixed die is subjected to surface treatment by heating in the winding operation process of the step, and the temperature is controlled at 180-250 ℃;

(7) and (3) after the pipe prepared in the step (6) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe. Wherein the modification mainly comprises modification of the bell mouth section, the spigot section, the spiral guide groove and the spiral guide grain on the bell mouth section and the spigot section.

The most core of the manufacturing method is that the prefabricated supporting ribs and the buckle plates are adopted, so that the shaping performance is good, the cooling shaping is fast, and the production speed is improved when the pipe is produced; meanwhile, the problem of the inherent bending stress of the original prefabricating and secondary forming process is solved by combining the thermal-state coating layer, the bending stress of the supporting ribs and the buckling plates is strictly controlled during production, and the bending stress of the pipe is greatly reduced through the coating of the thermal-state coating layer during pipe forming, so that the cooling production speed is improved on one hand, and various performances of the pipe are ensured through the thermal-state forming on the other hand. The prepared pipe has the characteristics of high ring stiffness, good ring flexibility, high welding strength and excellent shock resistance.

Compared with the prior art, the invention has the beneficial effects that:

1. compared with the prior hot winding Kela pipe, the section adopts the first section and the second section with solid wall structures, thereby facilitating the cooling and forming of the pipe, improving the production speed of the pipe, reducing the production cost, and improving the welding quality of the pipe by arranging the coating layers on the sections.

2. The support rib further comprises a reinforcing rib for protecting the support rib when the support rib is bent in a molding mode, so that the longitudinal strength of the support rib is enhanced, and the condition that the support rib is folded is avoided.

3. The hot winding solid corrugated pipe in the invention has a solid wall structure, and has high ring stiffness which can reach 20kN/m at most ² The ring has good impact damage resistance and excellent flexibility, reverse bending is avoided, and the flexibility of the ring can reach more than 70%.

4. The hot winding solid corrugated pipe is formed by hot winding, the welding seam strength is high, meanwhile, the joint seam is buckled in a hot mode by adopting the buckle plate, the welding strength is further improved, and the problem of later fracture of the pipe caused by secondary welding is avoided.

5. The thermal-state winding solid corrugated pipe has good low-temperature impact resistance: the pipe is cooled for 4 hours at the temperature of minus 10 ℃, then a hammer head with the weight of 20kg and the diameter of 90mm is used for falling from the height of 5 meters, and the pipe is free from cracking.

6. The thermal state winding solid corrugated pipe has high tensile strength: the sample blocks with the width of 50mm and the length of not less than 3 waves are taken along the longitudinal direction of the pipe, the tensile strength of the sample blocks is not less than 20Mpa, and the breaking position cannot be found at the joint of the welding seams of the pipe.

7. According to the invention, the bell mouth section and the spigot section are respectively arranged at the two axial ends of the corrugated pipe body, so that the corrugated pipes can be conveniently connected, the screw guide lines are arranged on the spigot matching section, and the screw guide grooves and the sealing ring mounting grooves are arranged on the bell mouth matching section. When the corrugated pipe is installed, the sealing ring is firstly matched in the sealing ring installation groove of the socket matching section, then the spiral guide lines are matched with the spiral guide grooves through external force, the pipe is pushed into place along the spiral angles of the spiral guide grooves and the spiral guide lines, and finally the sealing ring is tightly matched with the sealing ring, meanwhile, the spiral guide lines are under the action of the spiral guide grooves (similar to the principle that a screw is screwed into a nut), the joint of the pipe cannot fall off when the pipe is subjected to geological settlement, the pipe moves along the axial direction instead of spiral movement when the pipe falls off when the pipe is subjected to geological settlement, and after the pipe is buried, the gravity and extrusion force of soil are arranged around the pipe, so that the pipe is unlikely to cause spiral movement and the socket section to fall off.

8. The manufacturing method of the hot winding solid corrugated pipe is a hot overmoulding process, and has the advantages of small forming stress, basically no residual stress problem, contribution to ensuring the long-term performance of the pipe and the like compared with the existing cold winding pipe production process, such as a hollow wall pipe.

Drawings

FIG. 1 is a schematic view of a first profile of the present invention;

FIG. 2 is a cross-sectional view of a first profile of the present invention;

FIG. 3 is a schematic view of the structure of the support bar according to the present invention;

FIG. 4 is a cross-sectional view of a brace in accordance with the present invention;

FIG. 5 is a schematic view of a second profile according to the present invention;

FIG. 6 is a cross-sectional view of a second profile of the present invention;

FIG. 7 is a schematic view of the buckle plate according to the present invention;

figure 8 is a cross-sectional view of the gusset of the invention;

FIG. 9 is a schematic view of a thermal state wrapped solid corrugated tube in accordance with the present invention;

FIG. 10 is an enlarged view of part of B in FIG. 9;

FIG. 11 is a schematic illustration of the connection of a socket segment and a spigot segment in accordance with the invention;

fig. 12 is a schematic three-dimensional structure of the socket and spigot segments of the invention.

Description of the reference numerals: 1-first section bar, 11-supporting rib, 111-first half crest strip, 1111-first splicing surface, 112-second half crest strip, 1121-second splicing surface, 113-connecting strip, 114-reinforced crest strip, 12-first thermal state coating layer, 2-second section bar, 21-buckle plate, 211-buckling groove, 22-second thermal state coating layer, 3-corrugated pipe body, 31-trough structure, 32-crest structure, 321-small crest structure, 322-large crest structure, 4-socket section, 41-socket transition section, 42-socket fitting section, 43-socket limiting section, 5-socket section, 51-socket transition section, 52-socket limiting section, 53-socket fitting section, 531-sealing ring mounting groove, 6-anti-falling component, 61-spiral guide groove, 62-spiral guide groove and 7-sealing ring.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

embodiment one:

as shown in fig. 1 to 10, a profile for hot winding a solid corrugated tube is characterized in that: comprising a first profile 1 and a second profile 2 extending straight in the longitudinal direction; the first section bar 1 comprises a solid supporting rib 11 and a first thermal state coating layer 12 wrapping the outer wall of the supporting rib 11; on a cross section cut along the transverse direction of the first section bar 1, the first section bar 1 comprises a connecting bar 113 which is positioned in the middle and horizontally arranged in the transverse direction, a first half wave crest bar 111 fixedly arranged at one transverse end of the connecting bar 113, and a second half wave crest bar 112 fixedly arranged at the other transverse end of the connecting bar 113; the top position of the first half-wave crest strip 111 is level with the top position of the second half-wave crest strip 112, the bottom of the first half-wave crest strip 111 is horizontally connected to one lateral end of the bottom of the connecting strip 113, the bottom of the second half-wave crest strip 112 is horizontally connected to the other lateral end of the bottom of the connecting strip 113, the side surface of the first half-wave crest strip 111, which is far from the lateral side of the connecting strip 113, is a first splicing surface 1111, and the side surface of the second half-wave crest strip 112, which is far from the lateral side of the connecting strip 113, is a second splicing surface 1121; during the process of winding the first section bar 1 along the spiral direction, the first splicing surface 1111 of the first half crest strip 111 of the first section bar 1 wound to the next round can be spliced with the second splicing surface 1121 of the second half crest strip 112 of the first section bar 1 of the previous round to form a small crest structure 321 of the corrugated pipe;

The second section bar 2 comprises a solid pinch plate 21 and a second thermal state coating layer 22 coated on the outer wall of the pinch plate 21; on the cross section cut along the transverse direction of the second section bar 2, the second section bar 2 protrudes upwards to form a large peak shape, the middle part of the second section bar 2 is provided with a buckling groove 211 which is opened downwards and extends along the longitudinal direction of the buckling groove 211, and the shape and the size of the buckling groove 211 are matched with the shape and the size of the outer wall of a small peak structure 321 formed by the first half peak strip 111 and the second half peak strip 112 which are spliced together, so that the second section bar 2 can be just buckled on the small peak structure 321 formed by the first half peak strip 111 and the second half peak strip 112 which are spliced together and are mutually bonded to form a large peak structure 322 of the corrugated pipe in the spiral direction winding process of the second section bar 2.

Preferably, in a cross section taken transversely to the first profile 1, said first profile 1 further comprises a reinforcing peak strip 114 arranged above the connecting strip 112 and between the first half peak strip 111 and the second half peak strip 112, the top position of the reinforcing peak strip 114 being lower than the top position of the first half peak strip 111 in the vertical direction.

Embodiment two:

as shown in fig. 1-10, a thermal state winding solid corrugated tube is characterized in that: the corrugated pipe comprises a corrugated pipe body 3, wherein the corrugated pipe body 3 is a corrugated pipe which is formed by winding and bonding a first section bar 1 and a second section bar 2 along a spiral direction and provided with a continuous staggered peak structure 32 and a trough structure 31, the first section bar 1 is just spliced with a second splicing surface 1121 in a second half peak bar 112 of the previous circle to form a small peak structure 321 of the corrugated pipe body 3 in the first splicing surface 1111 of the first half peak bar 111 wound to the next circle in the winding process along the spiral direction, the second section bar 2 is just buckled and bonded on the small peak structure 321 in the winding process along the spiral direction to form a large peak structure 322 of the corrugated pipe body 3, the small peak structure 321 and the large peak structure 322 are jointly formed into the peak structure 32 of the corrugated pipe body 3, and the trough structure 31 is formed between two adjacent peak structures 32. The reinforcing crest strips 114 form reinforcing crests 33 of the corrugated pipe body 3 in the spiral winding process, and the reinforcing crests 33 are far away from the two crest structures 32 to play a role in reinforcing the strength of the pipe.

Preferably, the thermal state winding solid corrugated pipe further comprises a socket section 4 arranged at one axial end of the corrugated pipe body 3 and a socket section 5 arranged at the other axial end of the corrugated pipe body 3 and used for being in matched connection with the socket section 4 of the other corrugated pipe; the socket section 4 comprises a socket transition section 41, a socket matching section 42 and a socket limiting section 43 which are sequentially arranged from the corrugated pipe body 3 to the side where the port of the socket section 4 is located along the axial extension direction of the socket section; the outer peripheral walls of the socket matching section 42 and the socket limiting section 43 are in truncated conical shapes, and the outer diameter of the side close to the port of the socket section 4 is smaller than the outer diameter of the side far from the port of the socket section 4; the inclination of the outer peripheral wall of the socket limiting section 43 is larger than that of the outer peripheral wall of the socket matching section 42, and the socket transition section 41 is in transitional connection between the corrugated pipe body 3 and the socket matching section 42; the socket section 5 comprises a socket transition section 51, a socket limiting section 52 and a socket matching section 53 which are sequentially arranged from the corrugated pipe body 3 to the side of the port of the socket section 5 along the axial extension direction; the shape and the size of the inner peripheral walls of the socket matching section 53 and the socket limiting section 52 are respectively corresponding to those of the outer peripheral walls of the socket matching section 42 and the socket limiting section 43 one by one, the inner peripheral walls of the socket matching section 53 and the socket limiting section 52 are in truncated cone shapes, and the outer diameter of the side close to the port of the socket section 5 is larger than the outer diameter of the side far from the port of the socket section 5; the inclination of the inner peripheral wall of the bellmouth limiting section 52 is larger than that of the inner peripheral wall of the bellmouth matching section 53, the bellmouth transition section 51 is in transitional connection between the corrugated pipe body 3 and the bellmouth limiting section 52, the inner peripheral wall of the bellmouth matching section 53 is further provided with more than one sealing ring mounting groove 531 coaxially surrounding the inner peripheral wall and distributed at intervals along the axial direction of the inner peripheral wall, the thermal state winding solid corrugated pipe further comprises an anti-falling assembly 6 for preventing the socket section 4 from falling out along the axial direction after the socket section 4 and the bellmouth section 5 are matched and connected.

Preferably, the anti-disengaging assembly 6 includes more than two spiral guide grooves 61 disposed on the outer peripheral wall of the socket mating section 42 near the socket transition section 41 and uniformly distributed along the same circumferential direction at intervals, and spiral guide grooves 62 disposed on the inner peripheral wall of the socket mating section 53 near the port and having a shape and number corresponding to those of the spiral guide grooves 61, for facilitating screwing of the spiral guide grooves 61 and preventing disengagement of the socket section 4 along the axial direction.

Preferably, the spiral angle of the spiral guide 61 is 2 ° -15 ° and the same spiral direction as the bellows body 3.

Preferably, the spiral guide groove 62 has a horn shape with a large front and a small rear, so that the spiral guide groove is conveniently screwed into the spiral guide groove during installation.

Particularly, the supporting ribs and the buckle plates are made of modified polyethylene or modified polypropylene, the bending modulus is 1200-1600 MPa, the tensile strength is more than or equal to 25MPa, the elongation is more than 50%, and the Vicat heat-resistant temperature is more than 130 ℃;

the material of the coating layer is high-density polyethylene or polypropylene copolymer, the flexural modulus is 800-1300 MPa, the tensile strength is more than or equal to 20MPa, the elongation is more than 300%, and the normal-temperature impact strength is more than 50KJ/m.

The bending force of each specification of supporting rib and buckling plate is as follows:

And (3) injection:

the bending force detection method comprises the following steps: taking a supporting rib or buckle plate section bar corresponding to the specification, wherein the length of the supporting rib or buckle plate section bar is half of the circumference of the pipe material corresponding to the specification (such as DN300 pipe material, namely, the inner diameter is pi/2, 0.3 is 3.14/2=0.471 m is obtained), and measuring the force value of the section bar wrapped on a circular mold with the outer diameter corresponding to the specification of the section bar along the circumferential direction in the normal temperature state (so as to simulate the bending forming property of the section bar during pipe material production, the larger the bending force is, the worse the forming property is, the larger the residual bending stress at the later stage is, the long-term property of the pipe material is not facilitated, the smaller the bending force is, the better the forming property is, and the smaller the residual bending stress at the later stage is, and the long-term property of the pipe material is facilitated.

Embodiment III:

a manufacturing method of a hot winding solid corrugated pipe is characterized in that: the method comprises the following steps:

(1) melting the materials of the supporting ribs 11 and the pinch plates 21, and extruding the supporting ribs 11 and the pinch plates 21 through two extruders respectively;

(2) penetrating the supporting rib 11 into the inner cavity of a cladding mold provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the supporting rib 11 is wrapped with a first thermal cladding 12, and thus the first section bar 1 is manufactured; in addition, the feeding device is started to drive the supporting ribs 11 to continuously enter the coating layer mould while hot coating, the supporting ribs are wound on the outer wall of the inner sizing mould and do spiral motion along with the operation of the inner sizing mould, so that the adjacent first half-wave crest strips 111 and second half-wave crest strips 112 are mutually spliced and are adhered together through the first hot coating layer 12 of the first splicing surface 1111 and the second splicing surface 1121, and the corrugated pipe body 3 forms a small crest structure 321 and a trough structure 31 with continuous staggering;

(3) Penetrating the pinch plate 21 into the inner cavity of a cladding mold provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the pinch plate 21 is wrapped with a second thermal cladding 22, thereby manufacturing a second section bar 2; moreover, the feeding device is started to drive the buckle plate 21 to continuously enter the cladding layer mould while the thermal state cladding is carried out, so that the manufactured second section bar 2 is continuously molded and output from the cladding layer mould, the buckling groove 211 of the second section bar 2 is buckled on the small peak structure 321 which is molded by winding and spirally moves along with the operation of the internal diameter mould, the small peak structure 321 is buckled and bonded with the first thermal state cladding layer 12 of the small peak structure 321 through the second thermal state cladding layer 22 of the second section bar 2, the bellows body 3 forms a large peak structure 322 buckled on the small peak structure 321, and finally the small peak structure 321 and the large peak structure 322 jointly form a peak structure 32 of the bellows body 3;

(4) after the corrugated pipe body 3 is wound to a required length, the supporting ribs 11 and the pinch plates 21 are cut off and the feeding device is closed;

(5) and (3) after the pipe prepared in the step (4) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe.

Embodiment four:

a manufacturing method of a hot winding solid corrugated pipe is characterized in that: the method comprises the following steps:

(1) melting the materials of the supporting ribs 11 and the pinch plates 21, and extruding the supporting ribs 11 and the pinch plates 21 through two extruders respectively;

(2) extruding a hot blank for manufacturing the bellmouth section 5 of the corrugated pipe, winding the hot blank around the periphery of the bellmouth end of an inner sizing die, heating the surface of the inner sizing die in the winding operation process, controlling the temperature to be 180-250 ℃, and winding the hot blank to the thickness and the length required by the bellmouth section 5 to generate the bellmouth section 5;

(3) penetrating the supporting rib 11 into the inner cavity of a cladding mold provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the supporting rib 11 is wrapped with a first thermal cladding 12, and thus the first section bar 1 is manufactured; moreover, the feeding device is started to drive the supporting ribs 11 to continuously enter the cladding layer mould while hot cladding is carried out, so that the first splicing surface 1111 of the first half crest strip 111 of the manufactured first section bar 1 is clung to the port of the winded bell mouth section 4, then the first half crest strip is continuously winded on the outer wall of the inner sizing mould and spirally moves along with the operation of the inner sizing mould; during the spiral movement of the first section bar 1, the adjacent first half-wave crest strips 111 and second half-wave crest strips 112 are mutually spliced and bonded together through the first thermal state coating layers 12 of the first splicing surface 1111 and the second splicing surface 1121, so that the corrugated pipe body 3 forms a small crest structure 321 and a trough structure 31 with continuous interlacing; extruding a thermal state material blank to wrap and cover the first half crest strip 111 at the head end of the corrugated pipe body 3 while continuing to wrap after the first splicing surface 1111 of the first half crest strip 111 of the manufactured first section bar 1 is clung to the port of the winded and formed socket section 4;

(4) Penetrating the pinch plate 21 into the inner cavity of a cladding mold provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the pinch plate 21 is wrapped with a second thermal cladding 22, thereby manufacturing a second section bar 2; moreover, the feeding device is started to drive the buckle plate 21 to continuously enter the cladding layer mould while the thermal state cladding is carried out, so that the manufactured second section bar 2 is continuously molded and output from the cladding layer mould, the buckling groove 211 of the second section bar 2 is buckled on the small peak structure 321 which is molded by winding and spirally moves along with the operation of the internal diameter mould, the small peak structure 321 is buckled and bonded with the first thermal state cladding layer 12 of the small peak structure 321 through the second thermal state cladding layer 22 of the second section bar 2, the bellows body 3 forms a large peak structure 322 buckled on the small peak structure 321, and finally the small peak structure 321 and the large peak structure 322 jointly form a peak structure 32 of the bellows body 3;

(5) cutting off the supporting ribs 11 and the pinch plates 21 after the corrugated pipe body 3 is wound to the required length, closing a feeding device of the corrugated pipe body, extruding a thermal state blank for manufacturing the socket section 4, tightly wrapping the thermal state blank on the periphery of the second half-wave peak strip 112 at the tail end of the corrugated pipe body 3, and continuously winding the outer wall of an inner sizing die to manufacture the socket section 4 of the corrugated pipe;

(6) And (3) after the pipe prepared in the step (5) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe.

Fifth embodiment:

a manufacturing method of a hot winding solid corrugated pipe is characterized in that: the method comprises the following steps:

(1) melting the materials of the supporting ribs 11 and the pinch plates 21, and extruding the supporting ribs 11 and the pinch plates 21 through two extruders respectively;

(2) penetrating the supporting rib 11 into the inner cavity of a cladding mold provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the supporting rib 11 is wrapped with a first thermal cladding 12, and thus the first section bar 1 is manufactured; in addition, the feeding device is started to drive the supporting ribs 11 to continuously enter the cladding layer mould while the hot cladding is carried out, and then the supporting ribs are wound on the outer wall of the inner sizing mould and do spiral movement along with the operation of the inner sizing mould; during the spiral movement of the first section bar 1, the adjacent first half-wave crest strips 111 and second half-wave crest strips 112 are mutually spliced and bonded together through the first thermal state coating layers 12 of the first splicing surface 1111 and the second splicing surface 1121, so that the corrugated pipe body 3 forms a small crest structure 321 and a trough structure 31 with continuous interlacing;

(3) Penetrating the pinch plate 21 into the inner cavity of a cladding mold provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the pinch plate 21 is wrapped with a second thermal cladding 22, thereby manufacturing a second section bar 2; moreover, the feeding device is started to drive the buckle plate 21 to continuously enter the cladding layer mould while the thermal state cladding is carried out, so that the manufactured second section bar 2 is continuously molded and output from the cladding layer mould, the buckling groove 211 of the second section bar 2 is buckled on the small peak structure 321 which is molded by winding and spirally moves along with the operation of the internal diameter mould, the small peak structure 321 is buckled and bonded with the first thermal state cladding layer 12 of the small peak structure 321 through the second thermal state cladding layer 22 of the second section bar 2, the bellows body 3 forms a large peak structure 322 buckled on the small peak structure 321, and finally the small peak structure 321 and the large peak structure 322 jointly form a peak structure 32 of the bellows body 3;

(4) after the corrugated pipe body 3 is wound to a required length, the supporting ribs 11 and the pinch plates 21 are cut off and the feeding device is closed;

(5) extruding a thermal state blank for manufacturing the corrugated pipe socket section 4, and continuously winding the thermal state blank on the outer wall of an inner sizing die to manufacture the corrugated pipe socket section 4 after the thermal state blank is tightly wrapped on the periphery of the second half-wave peak strip 112 at the tail end of the corrugated pipe body 3; the surface of the inner diameter-fixed die is subjected to surface treatment by heating in the winding operation process of the step, and the temperature is controlled at 180-250 ℃;

(6) Extruding a thermal state blank for manufacturing the bellmouth section 5 of the corrugated pipe, winding the thermal state blank around the periphery of the bellmouth end of the inner sizing die, and winding the thermal state blank around the periphery of a first half wave crest strip 111 wrapped at the head end of the corrugated pipe body 3 to generate the bellmouth section 5; the surface of the inner diameter-fixed die is subjected to surface treatment by heating in the winding operation process of the step, and the temperature is controlled at 180-250 ℃;

(7) and (3) after the pipe prepared in the step (6) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe.

While the invention has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be appreciated that various changes and modifications can be made therein without departing from the spirit of the invention. It is, therefore, to be understood that the invention is not to be in any way limited except by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a section bar of solid bellows of hot winding which characterized in that: comprises a first profile (1) and a second profile (2) extending in a straight line in the longitudinal direction; the first section bar (1) comprises a solid supporting rib (11) and a first thermal state coating layer (12) wrapping the outer wall of the supporting rib (11); on a cross section transversely cut along a first section (1), the first section (1) comprises a connecting strip (113) which is positioned in the middle and horizontally arranged transversely, a first half crest strip (111) fixedly arranged at one transverse end of the connecting strip (113), and a second half crest strip (112) fixedly arranged at the other transverse end of the connecting strip (113); the top position of the first half-wave crest strip (111) is level with the top position of the second half-wave crest strip (112), the bottom of the first half-wave crest strip (111) is horizontally connected to one transverse end of the bottom of the connecting strip (113), the bottom of the second half-wave crest strip (112) is horizontally connected to the other transverse end of the bottom of the connecting strip (113), the side surface of the first half-wave crest strip (111) at the transverse side far from the connecting strip (113) is a first splicing surface (1111), and the side surface of the second half-wave crest strip (112) at the transverse side far from the connecting strip (113) is a second splicing surface (1121); during the process of winding the first section bar (1) along the spiral direction, a first splicing surface (1111) in a first half crest strip (111) of the first section bar (1) wound to the next circle can be spliced with a second splicing surface (1121) in a second half crest strip (112) of the first section bar (1) of the previous circle to form a small crest structure (321) of the corrugated pipe;

The second section bar (2) comprises a solid buckle plate (21) and a second thermal state coating layer (22) coated on the outer wall of the buckle plate (21); on the cross section of transversely cutting along second section bar (2), second section bar (2) upwards protrudes and is big crest form, and the middle part of second section bar (2) is equipped with down open-ended and along lock groove (211) that its longitudinal direction extends, the shape size of lock groove (211) and the shape size of the outer wall of the little crest structure (321) that first half crest strip (111) and second half crest strip (112) that splice together formed cooperate, so that second section bar (2) are in the winding process along spiral direction, and second section bar (2) can just in time lock on the little crest structure (321) that first half crest strip (111) and second half crest strip (112) that splice together and bond each other and form a big crest structure (322) of bellows.

2. The profile of a thermally wrapped solid corrugated tube according to claim 1, wherein: the first profile (1) further comprises a reinforcing peak strip (114) arranged above the connecting strip (112) and between the first half peak strip (111) and the second half peak strip (112) in a cross section taken transversely to the first profile (1), the top position of the reinforcing peak strip (114) being lower than the top position of the first half peak strip (111) in the vertical direction.

3. The utility model provides a solid bellows of hot winding which characterized in that: the corrugated pipe comprises a corrugated pipe body (3), wherein the corrugated pipe body (3) is formed by winding and bonding a section bar of the thermal-state winding solid corrugated pipe in a spiral direction and provided with a continuously staggered peak structure (32) and a trough structure (31), the first splicing surface (1111) of the first half peak strip (111) wound to the next circle is just spliced with the second splicing surface (1121) of the second half peak strip (112) of the previous circle in the winding process of the spiral direction, the second section bar (2) is just buckled and bonded on the small peak structure (321) to form a large peak structure (322) of the corrugated pipe body (3), the small peak structure (321) and the large peak structure (322) are combined into the peak structure (32) of the corrugated pipe body (3), and the small peak structure (32) and the large peak structure (322) are mutually bonded to form the trough structure (31) of the corrugated pipe body (3) in the winding process of the spiral direction.

4. A thermally wrapped solid corrugated tube in accordance with claim 3, wherein: the hot winding solid corrugated pipe further comprises a socket section (4) arranged at one axial end of the corrugated pipe body (3) and a socket section (5) arranged at the other axial end of the corrugated pipe body (3) and used for being connected with the socket section (4) of the other corrugated pipe in a matched mode; the socket section (4) comprises a socket transition section (41), a socket matching section (42) and a socket limiting section (43) which are sequentially arranged from the corrugated pipe body (3) to the side of the port of the socket section (4) along the axial extension direction of the socket section; the outer peripheral walls of the socket matching section (42) and the socket limiting section (43) are in truncated conical shapes, and the outer diameter of the side, close to the port of the socket section (4), is smaller than the outer diameter of the side, far away from the port of the socket section (4); the inclination of the outer peripheral wall of the socket limiting section (43) is larger than that of the outer peripheral wall of the socket matching section (42), and the socket transition section (41) is in transitional connection between the corrugated pipe body (3) and the socket matching section (42); the bellmouth section (5) comprises a bellmouth transition section (51), a bellmouth limiting section (52) and a bellmouth matching section (53) which are sequentially arranged from the corrugated pipe body (3) to the side of the port of the bellmouth section (5) along the axial extension direction of the bellmouth section; the shape and the size of the inner peripheral walls of the socket matching section (53) and the socket limiting section (52) are respectively corresponding to the shape and the size of the outer peripheral walls of the socket matching section (42) and the socket limiting section (43), the inner peripheral walls of the socket matching section (53) and the socket limiting section (52) are in a truncated cone shape, and the outer diameter of one side close to the port of the socket section (5) is larger than the outer diameter of one side far away from the port of the socket section (5); the inclination of the inner peripheral wall of the bellmouth limiting section (52) is larger than the inclination of the inner peripheral wall of the bellmouth matching section (53), the bellmouth transition section (51) is in transitional connection between the corrugated pipe body (3) and the bellmouth limiting section (52), the inner peripheral wall of the bellmouth matching section (53) is further provided with more than one sealing ring mounting groove (531) which is coaxially arranged on the inner peripheral wall of the bellmouth matching section (53) in a surrounding manner and is distributed at intervals along the axial direction of the inner peripheral wall of the bellmouth matching section, and the thermal-state winding solid corrugated pipe further comprises an anti-falling assembly (6) which is used for preventing the bellmouth section (4) from falling off along the axial direction after the bellmouth section (4) and the bellmouth section (5) are matched and connected.

5. The thermally wrapped solid corrugated tube of claim 4, wherein: the anti-drop assembly (6) comprises more than two spiral guide lines (61) which are arranged on the outer peripheral wall of the socket matching section (42) close to the socket transition section (41) and uniformly distributed along the same circumferential direction at intervals, and spiral guide grooves (62) which are arranged on the inner peripheral wall of the socket matching section (53) close to the port and are corresponding to the spiral guide lines (61) in shape, size and number and are used for facilitating the screwing in of the spiral guide lines (61) and preventing the socket section (4) from falling off along the axial direction.

6. The thermally wrapped solid corrugated tube of claim 5, wherein: the spiral angle of the spiral guide lines (61) is 2-15 degrees and is the same as the spiral direction of the corrugated pipe body (3).

7. A method of manufacturing the thermally wound solid corrugated tubing of claim 3, wherein: the method comprises the following steps:

(1) melting the materials of the supporting ribs (11) and the pinch plates (21), and extruding the supporting ribs (11) and the pinch plates (21) through two extruders respectively;

(2) penetrating the supporting rib (11) into a cladding mold cavity provided with a thermal cladding molten material for thermal cladding, so that the outer wall of the supporting rib (11) is wrapped with a first thermal cladding (12), and then the first section bar (1) is manufactured; moreover, the feeding device is started to drive the supporting ribs (11) to continuously enter the coating layer mould while hot coating, the supporting ribs are wound on the outer wall of the inner sizing mould and do spiral motion along with the operation of the inner sizing mould, so that the adjacent first half crest strips (111) and second half crest strips (112) are mutually spliced and are bonded together through the first hot coating layer (12) of the first splicing surface (1111) and the second splicing surface (1121), and the corrugated pipe body (3) forms a small crest structure (321) and a trough structure (31) which are continuously staggered;

(3) Penetrating the pinch plate (21) into a cladding mold cavity provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the pinch plate (21) is wrapped with a second thermal cladding (22), and a second section bar (2) is manufactured; moreover, the feeding device is started to drive the buckle plate (21) to continuously enter the cladding layer die while the thermal state cladding is carried out, after the manufactured second section bar (2) is continuously molded and output from the cladding layer die, the buckling groove (211) of the second section bar (2) is buckled on the small wave crest structure (321) which is formed by winding and spirally moves along with the operation of the internal diameter die, the small wave crest structure (321) is buckled and bonded with the first thermal state cladding layer (12) of the small wave crest structure (321) through the second thermal state cladding layer (22) of the second section bar (2), so that the corrugated pipe body (3) forms a large wave crest structure (322) buckled on the small wave crest structure (321), and finally the small wave crest structure (321) and the large wave crest structure (322) jointly form the wave crest structure (32) of the corrugated pipe body (3);

(4) after the corrugated pipe body (3) is wound to the required length, the supporting ribs (11) and the pinch plates (21) are cut off, and the feeding device is closed;

(5) and (3) after the pipe prepared in the step (4) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe.

8. A method of manufacturing a thermally wrapped solid corrugated tube as claimed in claim 4, wherein: the method comprises the following steps:

(1) melting the materials of the supporting ribs (11) and the pinch plates (21), and extruding the supporting ribs (11) and the pinch plates (21) through two extruders respectively;

(2) extruding a hot blank for manufacturing the bellmouth section (5) of the corrugated pipe, winding the hot blank around the periphery of the bellmouth end of an inner sizing die, heating the surface of the inner sizing die in the winding operation process, controlling the temperature to be 180-250 ℃, and winding the hot blank to the thickness and the length required by the bellmouth section (5) to generate the bellmouth section (5);

(3) penetrating the supporting rib (11) into a cladding mold cavity provided with a thermal cladding molten material for thermal cladding, so that the outer wall of the supporting rib (11) is wrapped with a first thermal cladding (12), and then the first section bar (1) is manufactured; moreover, the feeding device is started to drive the supporting ribs (11) to continuously enter the cladding layer mould while hot cladding is carried out, so that a first splicing surface (1111) of a first half wave crest strip (111) of the manufactured first section bar (1) is tightly attached to the port of the wound and formed socket section (4), and then the first section bar is continuously wound on the outer wall of the inner sizing mould and spirally moves along with the operation of the inner sizing mould; in the spiral movement process of the first section bar (1), adjacent first half crest strips (111) and second half crest strips (112) are spliced with each other and are bonded together through a first thermal state coating layer (12) of a first splicing surface (1111) and a second splicing surface (1121), so that the corrugated pipe body (3) forms a small crest structure (321) and a trough structure (31) which are continuously staggered; extruding a thermal state blank to wrap and cover the first half crest strip (111) at the head end of the corrugated pipe body (3) while continuing to wrap after the first splicing surface (1111) of the first half crest strip (111) of the manufactured first section bar (1) is clung to the port of the wrapped and formed socket section (4);

(4) Penetrating the pinch plate (21) into a cladding mold cavity provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the pinch plate (21) is wrapped with a second thermal cladding (22), and a second section bar (2) is manufactured; moreover, the feeding device is started to drive the buckle plate (21) to continuously enter the cladding layer die while the thermal state cladding is carried out, after the manufactured second section bar (2) is continuously molded and output from the cladding layer die, the buckling groove (211) of the second section bar (2) is buckled on the small wave crest structure (321) which is formed by winding and spirally moves along with the operation of the internal diameter die, the small wave crest structure (321) is buckled and bonded with the first thermal state cladding layer (12) of the small wave crest structure (321) through the second thermal state cladding layer (22) of the second section bar (2), so that the corrugated pipe body (3) forms a large wave crest structure (322) buckled on the small wave crest structure (321), and finally the small wave crest structure (321) and the large wave crest structure (322) jointly form the wave crest structure (32) of the corrugated pipe body (3);

(5) cutting off the supporting ribs (11) and the pinch plates (21) after the corrugated pipe body (3) is wound to the required length, closing the feeding device of the corrugated pipe body, extruding a thermal state blank for manufacturing the socket section (4), tightly wrapping the thermal state blank on the periphery of the second half wave crest strip (112) at the tail end of the corrugated pipe body (3), and continuously winding the outer wall of the inner sizing die to manufacture the socket section (4) of the corrugated pipe;

(6) And (3) after the pipe prepared in the step (5) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe.

9. A method of manufacturing a thermally wrapped solid corrugated tube as claimed in claim 4, wherein: the method comprises the following steps:

(1) melting the materials of the supporting ribs (11) and the pinch plates (21), and extruding the supporting ribs (11) and the pinch plates (21) through two extruders respectively;

(2) penetrating the supporting rib (11) into a cladding mold cavity provided with a thermal cladding molten material for thermal cladding, so that the outer wall of the supporting rib (11) is wrapped with a first thermal cladding (12), and then the first section bar (1) is manufactured; moreover, the feeding device is started to drive the supporting ribs (11) to continuously enter the cladding layer mould while the thermal state cladding is carried out, and then the supporting ribs are wound on the outer wall of the inner sizing mould and do spiral movement along with the operation of the inner sizing mould; in the spiral movement process of the first section bar (1), adjacent first half crest strips (111) and second half crest strips (112) are spliced with each other and are bonded together through a first thermal state coating layer (12) of a first splicing surface (1111) and a second splicing surface (1121), so that the corrugated pipe body (3) forms a small crest structure (321) and a trough structure (31) which are continuously staggered;

(3) Penetrating the pinch plate (21) into a cladding mold cavity provided with a thermal cladding molten material to perform thermal cladding, so that the outer wall of the pinch plate (21) is wrapped with a second thermal cladding (22), and a second section bar (2) is manufactured; moreover, the feeding device is started to drive the buckle plate (21) to continuously enter the cladding layer die while the thermal state cladding is carried out, after the manufactured second section bar (2) is continuously molded and output from the cladding layer die, the buckling groove (211) of the second section bar (2) is buckled on the small wave crest structure (321) which is formed by winding and spirally moves along with the operation of the internal diameter die, the small wave crest structure (321) is buckled and bonded with the first thermal state cladding layer (12) of the small wave crest structure (321) through the second thermal state cladding layer (22) of the second section bar (2), so that the corrugated pipe body (3) forms a large wave crest structure (322) buckled on the small wave crest structure (321), and finally the small wave crest structure (321) and the large wave crest structure (322) jointly form the wave crest structure (32) of the corrugated pipe body (3);

(4) after the corrugated pipe body (3) is wound to the required length, the supporting ribs (11) and the pinch plates (21) are cut off, and the feeding device is closed;

(5) extruding a thermal state blank for manufacturing the corrugated pipe socket section (4), and tightly wrapping the thermal state blank on the periphery of a second half wave crest strip (112) at the tail end of the corrugated pipe body (3), and continuously winding the thermal state blank on the outer wall of an inner sizing die to manufacture the corrugated pipe socket section (4); the surface of the inner diameter-fixed die is subjected to surface treatment by heating in the winding operation process of the step, and the temperature is controlled at 180-250 ℃;

(6) Extruding a hot blank for manufacturing the bellmouth section (5) of the corrugated pipe, winding the hot blank around the periphery of the bellmouth end of the inner sizing die, and winding the hot blank around the periphery of a first half wave crest strip (111) wrapped to the head end of the corrugated pipe body (3), so as to generate the bellmouth section (5); the surface of the inner diameter-fixed die is subjected to surface treatment by heating in the winding operation process of the step, and the temperature is controlled at 180-250 ℃;

(7) and (3) after the pipe prepared in the step (6) is cooled, lifting the pipe and the mould to a shaping table, shaping the pipe, and demoulding to obtain the hot winding solid corrugated pipe.