CN111438963A - Preparation method of continuously-wound glass fiber reinforced plastic ribbed pipe - Google Patents
Preparation method of continuously-wound glass fiber reinforced plastic ribbed pipe Download PDFInfo
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- CN111438963A CN111438963A CN202010293616.8A CN202010293616A CN111438963A CN 111438963 A CN111438963 A CN 111438963A CN 202010293616 A CN202010293616 A CN 202010293616A CN 111438963 A CN111438963 A CN 111438963A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/382—Automated fiber placement [AFP]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Abstract
The invention discloses a preparation method of a continuously wound glass fiber reinforced plastic ribbed pipe, which comprises the steps of calculating the body laying layer of a continuous pipe (1) and the size and distribution of reinforcing ribs (4) according to the design requirements on internal pressure and rigidity, reasonably distributing reinforcing rib winding materials (2), and linking a reinforcing rib winding platform (3) and continuous pipe production equipment to finally obtain the continuously wound ribbed pipe (5). The method adopts a reinforcement mode to replace the traditional sand inclusion process, reduces the winding thickness of the continuous pipe body, improves the infiltration speed and the production speed of the pipeline body, solves the layering problem in the traditional production process and the problem of insufficient platform width of platform winding and blanking of the traditional equipment platform, shortens the width of the inner and outer fiber winding layers, and can produce the continuous winding pipe with higher rigidity and larger thickness in the limited equipment space.
Description
Technical Field
The invention relates to a preparation process of a reinforced pipe, in particular to a production and manufacturing process of a reinforced pipe continuously wound with glass fiber reinforced plastics.
Background
The continuous winding production technology for the glass fiber reinforced plastic pipeline is a new domestic technology, continuous production can be realized by means of unique production equipment, and the product performance, the production stability and the production efficiency are superior to those of fixed-length winding technology.
The continuous winding forming process is a forming mode that a steel belt is pushed by a cam disc or a mould is pushed by other modes to continuously run to form a pipe winding inner core mould which circularly runs back and forth, and then raw materials such as resin, a surface felt, continuous fibers, chopped fibers and/or quartz sand are continuously layered by adopting methods such as hoop winding, cutting and blanking according to a certain proportion requirement, so that the technical processes such as pipeline winding, compounding, sand adding, reinforcing, curing and the like are continuously completed until the pipe with a certain length is cut. In the continuous winding production mode, fillers or reinforcing materials such as chopped yarns, continuous fibers, resin, quartz sand and the like are fed in a blanking mode in the forming process, and are subjected to high-temperature curing after being stacked layer by layer, so that the continuous winding production mode is called a quasi-three-dimensional structure.
The principle of the steel belt type propulsion system is that every time a steel belt advances, the mould rotates for a circle, so that one-time blanking is completed until the steel belt is stacked layer by layer to reach the designed thickness. This type of winding of the layer-by-layer stack faces a new problem, i.e. when the design thickness of the continuous pipe is required to be thicker due to high rigidity, the number of layers of the material stack increases, which results in too much material to be fed and poor infiltration, especially when manufacturing the pipe with high rigidity. When the fiber infiltration is poor, the quality problems of layering, burst and the like can occur in the pipeline. Therefore, the conventional manufacturing process avoids the production of high-rigidity continuous pipes or adopts a new production process method to solve the problem.
Disclosure of Invention
The purpose of the invention is as follows: a new continuous winding pipeline is developed, a traditional sand inclusion process is replaced by a reinforcement mode, the winding thickness of a continuous pipe body is reduced, the infiltration speed and the production speed of a pipeline body are improved, and the layering problem of the traditional production process is solved; the product is diversified, and different requirements of different customers are met; the problem of insufficient platform width in the traditional equipment platform winding and blanking process is solved, the width of the inner and outer fiber winding layers is shortened, a continuous winding pipe with higher rigidity and larger thickness can be produced in a limited equipment space, and the application range and market of the continuous winding pipe are expanded; but also is beneficial to the technical innovation of the domestic glass fiber reinforced plastic industry, promotes the popularization and application of the continuous winding technology, and fills a gap in the aspect of the domestic and foreign continuous winding technology.
The technical scheme is as follows: in order to realize the purpose of the invention, the invention adopts the technical scheme that:
a preparation method of a continuously wound glass reinforced plastic ribbed pipe comprises the following steps:
A. iteratively calculating the number of layers of the body of the continuous pipe under the designed internal pressure according to the ultimate hoop tensile strength and the ultimate axial tensile strength of the layers wound by the continuous fibers and the chopped fibers;
B. b, obtaining the rigidity of the body of the continuous pipe according to the number of the layers of the body of the continuous pipe in the step A, subtracting the rigidity of the body of the continuous pipe from a rigidity design value to obtain the required rigidity of the reinforcing ribs, and then iteratively calculating the size and the distribution spacing of the reinforcing ribs according to a neutral axis theory;
C. distributing and arranging the winding materials of the reinforcing ribs through a yarn comb to ensure that the distribution width of the winding yarns on the yarn comb does not exceed the width of the reinforcing ribs (4), and calculating the number of strands of the winding yarns according to the distribution width of the winding yarns on the yarn comb; for example, when the width of the reinforcing bar is 100mm, the yarn comb distribution width of the winding yarn should not exceed 100mm, thereby reversely deducing the number of strands of the winding yarn. (the width of the comb of the wound yarn is generally proportional to the number of strands, and is commonly used by I.A. 4mm spacing, i.e. a comb distribution width of 100mm for 25 strands of wound yarn).
D. The P L C controller is additionally arranged between the reinforcing rib winding platform and the continuous pipe production equipment for linkage, when reinforcing ribs need to be wound, the linkage switch is opened, the speed signal of the continuous pipe production equipment is transmitted to the reinforcing rib winding platform, and the synchronization of the propulsion speed of the reinforcing rib winding platform and the reinforcing rib winding platform is realized;
E. the continuous pipe is always in a rotating state in the production process, and when the continuous pipe reaches the position of the reinforcing rib winding platform, the winding material is hung on the outer surface of the continuous pipe, and the continuous pipe rotates together with the winding material; the reinforcing rib winding platform and the continuous pipe production equipment are linked, the continuous pipe rotates for a circle, the winding material is wound for one layer until the number of wound layers meets the requirement of the design height of the reinforcing rib, the winding material is cut off, the next reinforcing rib is wound according to the steps, and the continuously wound reinforcing rib pipe is obtained finally.
Preferably, in the above method for manufacturing a continuously wound glass fiber reinforced plastic ribbed pipe, the reinforcing rib winding platforms are distributed on one side or two sides of the continuous pipe, move along with the movement of the winding pipe, the moving speed is synchronous with the advancing speed of the continuous pipe, and the reinforcing rib winding platforms can reciprocate cyclically, and the number of the reinforcing rib winding platforms is more than one.
Preferably, in the above method for manufacturing a continuously wound glass fiber reinforced plastic ribbed pipe, the reinforcing rib is obtained by winding and curing a winding material in a circumferential direction, and the cross section of the reinforcing rib is rectangular, oval or semicircular.
Preferably, in the above method for manufacturing a continuously wound glass fiber reinforced plastic ribbed pipe, the winding material is carbon fiber, glass fiber or a blend fiber of carbon fiber and glass fiber, which is pre-impregnated with epoxy resin.
As a preferred scheme, the reinforcing rib winding platform is a platform device for winding reinforcing ribs on a continuous pipe body, and comprises a winding creel, a yarn penetrating hole, a resin adhesive tank, resin adhesive liquid, a yarn pressing roller, a central console, a yarn dividing comb and a running track; the yarn penetrating hole is formed in one side of the resin glue groove, the yarn dividing comb is located on the other side of the resin glue groove, the resin glue solution is arranged in the resin glue groove, and the yarn pressing roller is arranged in the resin glue groove; the bottom of the resin rubber groove is provided with a driving wheel which is positioned on the running track and connected with the central console; winding materials are placed on the winding creel;
when the continuous pipe reaches the position of the winding platform, a linkage switch on the central control platform is opened, so that the winding platform receives a moving signal fed back by continuous pipe production equipment and synchronously moves forward along with the continuous pipe; at the moment, the winding material on the fixed winding creel enters the resin glue solution in the resin glue groove through the yarn penetrating hole, then the winding material is pressed by the yarn pressing roller to be fully soaked in the resin glue solution, and finally the width of the winding material is adjusted by the yarn dividing comb and led out to the tube body of the continuous tube, so that the winding of the reinforcing ribs is realized.
The continuous pipe production equipment comprises a production equipment platform, a pipeline winding machine supported on the production equipment platform, an inner winding layer upper layer blanking platform, an inner winding layer lower layer blanking platform, an outer winding layer upper layer blanking platform, an outer winding layer lower layer blanking platform, a sand inclusion layer blanking platform and a resin blanking platform;
the inner winding layer upper layer blanking platform is positioned above the inner winding layer lower layer blanking platform, and the inner winding layer upper layer blanking platform and the inner winding layer lower layer blanking platform are positioned on one side of the sand inclusion layer blanking platform, which is close to the production equipment platform, and are positioned above the side of the pipeline winding machine; the outer winding layer upper layer blanking platform is positioned above the outer winding layer lower layer blanking platform, and the outer winding layer upper layer blanking platform and the outer winding layer lower layer blanking platform are positioned on one side of the sand inclusion layer blanking platform, which is far away from the production equipment platform, and are positioned above the side of the pipeline winding machine; the outer winding layer upper layer blanking platform, the outer winding layer lower layer blanking platform, the inner winding layer upper layer blanking platform and the inner winding layer lower layer blanking platform are at the same height; the sand inclusion layer blanking platform and the resin blanking platform are respectively positioned at two sides of the pipeline winding machine;
the inner winding layer upper layer blanking platform is a winding layer lower layer blanking platform, and the outer winding layer upper layer blanking platform and the outer winding layer lower layer blanking platform are of threaded rod structures;
the blanking width of the inner winding layer upper layer blanking platform is more than or equal to that of the inner winding layer lower layer blanking platform; the blanking width of the blanking platform on the upper layer of the outer winding layer is more than or equal to that of the blanking platform on the lower layer of the outer winding layer;
and circulating glue spraying holes are arranged on the resin blanking platforms to provide resin for each blanking platform.
Has the advantages that: compared with the prior art, the preparation method of the continuously wound glass fiber reinforced plastic ribbed pipe has the following advantages:
the invention develops a new continuous winding pipeline, adopts a reinforcing rib mode to replace the traditional sand inclusion process, improves the rigidity, reduces the winding thickness of a continuous pipe body, improves the infiltration speed and the production speed of a pipeline body, can solve the layering problem in the traditional production process, can solve the problem of insufficient platform width in the platform winding and blanking of the traditional equipment, shortens the width of an inner fiber winding layer and an outer fiber winding layer, can produce continuous winding pipes with higher rigidity and larger thickness in a limited equipment space, can meet different requirements of different customers, expands the application range and the market of the continuous winding pipes, is beneficial to technical innovation of the domestic glass fiber reinforced plastic industry, promotes the popularization and the application of the continuous winding technology, and fills a blank in the aspect of the domestic and foreign continuous winding technology.
Drawings
FIG. 1 is a schematic view of a method for manufacturing a continuously wound glass fiber reinforced plastic ribbed pipe according to the present invention.
Fig. 2 is a schematic structural view of a reinforcing bar winding platform.
FIG. 3 is a schematic view of the structure of a continuous pipe production apparatus.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
Example 1
As shown in FIG. 1, the technical scheme of the invention is specifically illustrated by taking DN2000-PN6-SN10000 ribbed tube as an example:
A. inputting DN2000, PN6 and SN10000 according to design, wherein under the condition of not adding sand, the ultimate hoop tensile strength of the layering is 457MPa, the ultimate axial tensile strength is 53MPa, and the thickness of the pipe body is calculated to be not less than 10mm according to the strength principle; in order to ensure the deformation resistance of the pipeline when no reinforcement is added, the rigidity of the body of the pipeline is not less than 1250Pa, and the thickness of the pipeline body is not less than 17.4mm according to the calculation. The thickness of the two is 17.4 mm. Accordingly, the required number of structural winding strands is 234 strands of 2400TEX winding yarn, requiring 23.4 layers to be wound in total.
B. And B, obtaining a rigidity design value of the continuous pipe, namely SN10000 Pa, according to the number of the paving layers of the body of the continuous pipe in the step A, wherein the rigidity of the body is 1250Pa, the rigidity required to be provided by the reinforcing rib is 10000- & lt 1250=8750Pa, and the size of the reinforcing rib is calculated according to a neutral axis theory as follows: the height is 45mm, the width is 90mm, and the distance is 1000 mm;
(① according to the theory of neutral axis, the theoretical position of the neutral axis x is calculated as Eb × Ap × (t/2 + x) = Er × Ar × (h/2-x), Eb is bending elastic modulus of pipe body ring = 245843 MPa, Er is bending elastic modulus of reinforcing rib ring =27000MPa, Ap = pipe wall thickness t × spacing L =17400mm2Ar = reinforcing rib width a × height h =4050mm2And x = -2.34mm is calculated.
② calculating the rigidity of the reinforced pipe, Ej = [ Eb × (t ^3 ×L/12 + Ap × C1^2) + Er × (h ^3 × a/12+ Ar × C2^2) ]/L, wherein C1= t/2+ x =6.36mm, C2= h/2-x =24.84mm, and substituting the data to obtain Ej =113973N · m.
③ calculating rigidity according to the rigidity of the reinforced pipe, wherein SN = Ej/D ^3, D =2046-17.4+1.5=2030.1mm, and calculating SN =13622Pa according to the rigidity.
④ ribs provide a reduction in stiffness since the ribs actually wound are not rectangular, and may be trapezoidal or semi-elliptical, and therefore need to be reduced in shape, with the semi-elliptical shape being the most conservative, the reduction is based on a reduction factor of pi/4 =0.7854, and the ribs provide a stiffness of 13622-.
⑤, calculating the final reinforced rigidity of 9717+1250=10976Pa, according with the design requirements.)
C. Since the width of the reinforcing rib is 90mm, when a 4mm yarn comb pitch is adopted, it is necessary to arrange 22 strands of winding yarns (glass fibers impregnated with resin) or so. The threading and the arrangement of the material then take place accordingly. Meanwhile, before the pipeline does not reach the reinforcing rib winding platform, the position of the reinforcing rib is calibrated, and winding is facilitated.
D. The method comprises the steps of adding a P L C controller between a reinforcing rib winding platform 3 and continuous pipe production equipment for linkage, opening a linkage switch, ensuring that the production speed of the reinforcing rib winding platform and the production speed of the continuous pipe production equipment are synchronous, hanging a winding material 2 at a position marked on the outer surface of the continuous pipe, and then synchronously winding the winding material 2 along with the continuous pipe, wherein the thickness of each winding layer is 0.45mm, so that the height of the reinforcing rib of 45mm needs 100 layers of hoop winding, and because each winding layer is in the hoop direction, the continuous pipe rotates for one circle, the continuous pipe moves forwards by the width of one steel belt (about 40 mm), so that the hoop direction of 100 layers of winding needs to be pushed by 4000mm, 4 reinforcing rib winding platforms 3 can be used, or the winding material 2 can be overlapped in double layers, so that the effect of 0.9mm in thickness of each winding layer is achieved, and one winding platform 3 is distributed on each side of the continuous pipe.
As shown in fig. 2, the reinforcing rib winding platform 3 is a platform device for winding reinforcing ribs on the tube body of the continuous tube 1, and comprises a winding creel 3-1, a yarn penetrating hole 3-2, a resin glue tank 3-3, a resin glue solution 3-4, a yarn pressing roller 3-5, a center console 3-6, a yarn dividing comb 3-7 and a running track 3-8; the yarn penetrating hole 3-2 is formed in one side of the resin glue groove 3-3, the yarn dividing comb 3-7 is located on the other side of the resin glue groove 3-3, the resin glue solution 3-4 is arranged in the resin glue groove 3-3, and the yarn pressing roller 3-5 is arranged in the resin glue groove 3-3; the bottom of the resin glue tank 3-3 is provided with a driving wheel 3-9, the driving wheel 3-9 is positioned on the running track 3-8, and the driving wheel 3-9 is connected with the central console 3-6; a winding material 2 is placed on the winding creel 3-1;
when the coiled tubing 1 reaches the position of the winding platform 3, a linked switch on the central console 3-6 is opened, so that the winding platform 3 receives a moving signal fed back by the coiled tubing production equipment and synchronously moves forward along with the coiled tubing 1; at the moment, the winding material 2 on the fixed winding creel 3-1 enters the resin glue solution 3-4 in the resin glue groove 3-3 through the yarn through hole 3-2, then the winding material 2 is pressed by the yarn pressing roller 3-5 to be fully soaked in the resin glue solution 3-4, and finally the width is adjusted by the yarn dividing comb 3-7 to be led out to the tube body of the continuous tube 1, so that the winding of the reinforcing ribs is realized.
As shown in FIG. 3, the continuous pipe production equipment comprises a production equipment platform 6-1, a pipeline winding machine 6-2 supported on the production equipment platform 6-1, an inner winding layer upper layer blanking platform 6-3, an inner winding layer lower layer blanking platform 6-4, an outer winding layer upper layer blanking platform 6-8, an outer winding layer lower layer blanking platform 6-9, a sand inclusion layer blanking platform 6-6 and a resin blanking platform 6-10;
the inner winding layer upper layer blanking platform 6-3 is positioned above the inner winding layer lower layer blanking platform 6-4, and the inner winding layer upper layer blanking platform and the inner winding layer lower layer blanking platform are positioned on one side, close to the production equipment platform 6-1, of the sand inclusion layer blanking platform 6-6 and positioned above the side of the pipeline winding machine 6-2; the outer winding layer upper layer blanking platform 6-8 is positioned above the outer winding layer lower layer blanking platform 6-9, and the outer winding layer upper layer blanking platform and the outer winding layer lower layer blanking platform are positioned on one side of the sand inclusion layer blanking platform 6-6, which is far away from the production equipment platform 6-1, and are positioned above the side of the pipeline winding machine 6-2; the upper layer blanking platform 6-8 and the lower layer blanking platform 6-9 of the outer winding layer are at the same height as the upper layer blanking platform 6-3 and the lower layer blanking platform 6-4 of the inner winding layer; the sand inclusion layer blanking platform 6-6 and the resin blanking platform 6-10 are respectively positioned at two sides of the pipeline winding machine 6-2;
the upper layer blanking platform 6-3 of the inner winding layer, the lower layer blanking platform 6-4 of the inner winding layer, the upper layer blanking platform 6-8 of the outer winding layer and the lower layer blanking platform 6-9 of the outer winding layer are all of threaded rod structures;
the blanking width of the inner winding layer upper layer blanking platform 6-3 is more than or equal to that of the inner winding layer lower layer blanking platform 6-4; the blanking width of the blanking platform 6-8 at the upper layer of the outer winding layer is more than or equal to the blanking width of the blanking platform 6-9 at the lower layer of the outer winding layer;
and circulating glue spraying holes 6-11 are arranged on the resin blanking platforms 6-10 to provide resin for the blanking platforms. The pipe winding machine can adopt a CFW-2600 pipe winding machine.
2. And (3) performance detection:
the winding thickness of the glass reinforced plastic reinforced pipe prepared by the method is 17.5-19 mmmm, and the rigidity can reach 10500-11500 Pa.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The preparation method of the continuously wound glass fiber reinforced plastic ribbed pipe is characterized by comprising the following steps of:
A. iteratively calculating the number of layers of the body of the continuous pipe (1) under the designed internal pressure according to the ultimate hoop tensile strength and the ultimate axial tensile strength of the layers wound by the continuous fibers and the chopped fibers;
B. obtaining the rigidity of the body of the continuous pipe (1) according to the number of the body laying layers of the continuous pipe (1) in the step A, then obtaining the required rigidity of the reinforcing ribs after subtracting the rigidity of the body of the continuous pipe (1) from a rigidity design value, and then iteratively calculating the size and the distribution spacing of the reinforcing ribs (4) according to a neutral axis theory;
C. distributing and arranging the winding materials (2) of the reinforcing ribs (4) through a yarn comb to ensure that the distribution width of the winding yarns on the yarn comb does not exceed the width of the reinforcing ribs (4), and calculating the number of strands of the winding yarns according to the distribution width of the winding yarns on the yarn comb;
D. a P L C controller is additionally arranged between the reinforcing rib winding platform (3) and the continuous pipe production equipment for linkage, when reinforcing ribs (4) need to be wound, a linkage switch is opened, speed signals of the continuous pipe production equipment are transmitted to the reinforcing rib winding platform (3), and the synchronization of the propelling speed between the reinforcing rib winding platform and the reinforcing rib winding platform is realized;
E. the continuous pipe is always in a rotating state in the production process, when the continuous pipe reaches the position of the reinforcing rib winding platform (3), the winding material (2) is hung on the outer surface of the continuous pipe, and the continuous pipe drives the winding material (2) to rotate together; the reinforcing rib winding platform (3) and the continuous pipe production equipment are linked, the continuous pipe rotates for a circle, the winding material (2) is wound for one layer until the number of wound layers meets the requirement of the design height of the reinforcing rib, the winding material (2) is cut off at last, the next reinforcing rib is wound according to the steps, and the continuous winding reinforcing rib pipe (5) is obtained finally.
2. The method for preparing the continuously wound glass reinforced plastic reinforced pipe according to claim 1, wherein the reinforcing rib winding platforms (3) are distributed on one side or two sides of the continuous pipe (1), move along with the movement of the winding pipe, the moving speed is synchronous with the advancing speed of the continuous pipe (1), and the reinforcing rib winding platforms (3) can reciprocate circularly, and the number of the reinforcing rib winding platforms (3) is more than one.
3. The method for preparing the continuously wound FRP-stiffened pipe according to claim 1, wherein the reinforcing ribs (4) are obtained by winding and solidifying a winding material (2) in a circumferential direction, and have a rectangular, elliptical or semicircular cross section.
4. The method for preparing the continuously wound FRP-reinforced pipe according to claim 1, wherein the winding material (2) is carbon fiber, glass fiber or blended fiber of carbon fiber and glass fiber presoaked with epoxy resin.
5. The method for preparing the continuously wound glass reinforced plastic reinforced pipe according to claim 1, wherein the reinforcing rib winding platform (3) is a platform device for winding reinforcing ribs on the pipe body of the continuous pipe (1) and comprises a winding creel (3-1), a yarn penetrating hole (3-2), a resin glue groove (3-3), resin glue liquid (3-4), a yarn pressing roller (3-5), a central control table (3-6), a yarn separating comb (3-7) and a running track (3-8); the yarn penetrating hole (3-2) is formed in one side of the resin glue groove (3-3), the yarn dividing comb (3-7) is located on the other side of the resin glue groove (3-3), the resin glue solution (3-4) is arranged in the resin glue groove (3-3), and the yarn pressing roller (3-5) is arranged in the resin glue groove (3-3); the bottom of the resin glue groove (3-3) is provided with a driving wheel (3-9), the driving wheel (3-9) is positioned on the running track (3-8), and the driving wheel (3-9) is connected with the central console (3-6); a winding material (2) is placed on the winding creel (3-1);
when the coiled tubing reaches the position of the winding platform (3), a linked switch on the central console (3-6) is opened, so that the winding platform (3) receives a moving signal fed back by the coiled tubing production equipment and synchronously moves forward along with the coiled tubing (1); at the moment, the winding material (2) on the winding creel (3-1) enters the resin glue solution (3-4) in the resin glue groove (3-3) through the yarn penetrating hole (3-2), then the winding material (2) is pressed by the yarn pressing roller (3-5) to be fully soaked in the resin glue solution (3-4), and finally the width is adjusted by the yarn dividing comb (3-7) to be led out to the tube body of the continuous tube (1), so that the winding of the reinforcing ribs is realized.
6. The method for preparing the continuously wound glass reinforced plastic ribbed pipe according to claim 1, wherein the continuous pipe production equipment comprises a production equipment platform (6-1), a pipeline winding machine (6-2) supported on the production equipment platform (6-1), an inner winding layer upper layer blanking platform (6-3), an inner winding layer lower layer blanking platform (6-4), an outer winding layer upper layer blanking platform (6-8), an outer winding layer lower layer blanking platform (6-9), a sand inclusion layer blanking platform (6-6) and a resin blanking platform (6-10);
the inner winding layer upper layer blanking platform (6-3) is positioned above the inner winding layer lower layer blanking platform (6-4), and the inner winding layer upper layer blanking platform and the inner winding layer lower layer blanking platform are positioned on one side, close to the production equipment platform (6-1), of the sand inclusion layer blanking platform (6-6) and positioned above the side of the pipeline winding machine (6-2); the outer winding layer upper layer blanking platform (6-8) is positioned above the outer winding layer lower layer blanking platform (6-9), and the outer winding layer upper layer blanking platform and the outer winding layer lower layer blanking platform are positioned on one side, far away from the production equipment platform (6-1), of the sand inclusion layer blanking platform (6-6) and positioned above the side of the pipeline winding machine (6-2); the outer winding layer upper layer blanking platform (6-8), the outer winding layer lower layer blanking platform (6-9), the inner winding layer upper layer blanking platform (6-3) and the inner winding layer lower layer blanking platform (6-4) are at the same height; the sand inclusion layer blanking platform (6-6) and the resin blanking platform (6-10) are respectively positioned at two sides of the pipeline winding machine (6-2);
the upper layer blanking platform (6-3) of the inner winding layer and the lower layer blanking platform (6-4) of the inner winding layer are of threaded rod structures, and the upper layer blanking platform (6-8) of the outer winding layer and the lower layer blanking platform (6-9) of the outer winding layer are of threaded rod structures;
the blanking width of the inner winding layer upper layer blanking platform (6-3) is more than or equal to that of the inner winding layer lower layer blanking platform (6-4); the blanking width of the blanking platform (6-8) at the upper layer of the outer winding layer is more than or equal to that of the blanking platform (6-9) at the lower layer of the outer winding layer;
and circulating glue spraying holes (6-11) are arranged on the resin blanking platforms (6-10) to provide resin for each blanking platform.
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| CN202010293616.8A CN111438963B (en) | 2020-04-15 | 2020-04-15 | Preparation method of continuously-wound glass fiber reinforced plastic ribbed pipe |
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| CN202010293616.8A CN111438963B (en) | 2020-04-15 | 2020-04-15 | Preparation method of continuously-wound glass fiber reinforced plastic ribbed pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113232326A (en) * | 2021-04-30 | 2021-08-10 | 刘方海 | Glass fiber composite pipe dipping treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113232326A (en) * | 2021-04-30 | 2021-08-10 | 刘方海 | Glass fiber composite pipe dipping treatment system |
| CN113232326B (en) * | 2021-04-30 | 2023-01-10 | 青宸新材料科技(山东)有限公司 | Glass fiber composite pipe dipping treatment system |
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