CN114193803A

CN114193803A - Forming equipment for reinforced and toughened composite pipe

Info

Publication number: CN114193803A
Application number: CN202111509852.XA
Authority: CN
Inventors: 孙华丽; 汪鹏跃; 李海超; 徐军标; 王超峰
Original assignee: Yonggao Co Ltd
Current assignee: Yonggao Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-03-18
Anticipated expiration: 2041-12-10
Also published as: CN114193803B; WO2023103229A1

Abstract

The invention provides a forming device of a reinforced and toughened composite pipe, and belongs to the technical field of composite pipelines. It has solved the weak problem of compound pipeline intensity among the prior art. This forming equipment of compound pipe is toughened in reinforcing includes forming die, outer tube support, the outer tube that the level set up and can stretch into forming die with the reinforcing fiber cladding coiling machine on the outer tube periphery wall, in the tail end of outer tube stretches into forming die, and reinforcing fiber on the outer tube outer wall can stretch out from forming die's export with the compound pipeline that forms of the melting material that injects in the forming die, the head end of outer tube is connected on the outer tube support, and the bottom of outer tube support is connected with the embedding piece, the embedding piece has the hook portion that is located the outer tube support below. The composite pipeline produced by the forming equipment has the advantages of high strength and good toughness.

Description

Forming equipment for reinforced and toughened composite pipe

Technical Field

The invention belongs to the technical field of pipeline production equipment, relates to a fastener, and particularly relates to a locknut.

Background

With the continuous expansion of cities and the continuous exploitation of petroleum and natural gas, the demand on transportation pipelines is also increasing. Traditional steel pipelines are poor in corrosion resistance and difficult to carry, and cannot meet the current requirements. Meanwhile, most of the main petroleum and natural gas in China are distributed in deserts, swamps or mountainous areas, the natural environment is severe, the steel pipelines are seriously influenced by the natural environment when being laid, and the conveying pipelines are extremely easy to damage due to ground settlement, mountain landslides and the like. The fiber reinforced composite pipeline has small density, high strength and excellent mechanical properties, such as good processing performance, good chemical stability resistance, heat resistance and the like, and can still be stably used for a long time in some complex environments, so the fiber reinforced composite pipeline is widely applied.

The existing fiber reinforced composite pipe generally comprises an inner layer, a reinforcing layer and an outer layer of three-layer structure from inside to outside in sequence, wherein the inner layer is a pipe blank extruded by a plastic extruder, the reinforcing layer is reinforcing fibers wound on the inner layer in a winding mode so as to achieve the purpose of improving the structural strength of the plastic pipeline, and the outer layer is a plastic layer attached outside the reinforcing layer. The existing equipment for manufacturing the reinforced fiber composite pipeline has different structures, but the manufacturing principle is basically consistent, and the reinforced fiber composite pipeline is mainly formed by firstly extruding a pipe blank through an extruder, then winding reinforced fibers on the surface of the pipe blank through a winding machine and bonding the reinforced fibers through a bonding agent. For example, a plastic pipe forming line (application No. 201811640324.6; application publication No. CN109664479A) disclosed in chinese patent document is configured such that an outflow line passes through a plasticized material in a first extruder, enters a forming mold, forms the plasticized material into an inner pipe, moves through a first shaping machine to shape and cool the inner pipe, and then sequentially passes through a tape laying machine and a winding machine, the tape laying machine axially attaches a first reinforcing tape to the surface of the inner pipe, and the winding machine spirally winds a second reinforcing tape to the surface of the inner pipe. And then, the inner pipe moves through the composite die, a second extruder coats the plasticized raw materials on the inner pipe and forms the composite pipe, and finally the composite pipe moves through a second forming machine and is formed and cooled. The composite pipeline produced by the equipment needs to ensure that the prepared pipeline reaches the required strength, multiple layers of winding is usually needed, the thickness of continuous fibers is very small, the bonding layer formed by directly winding the continuous fibers on the surface of the inner pipe is very small, and meanwhile, the bonding force of the contact area between the fibers is limited or not bonded at all due to the fact that the fibers are sequentially wound, so that the bonding between the layers is not firm, and the effect of improving the quality, particularly the strength, of the composite pipeline is limited.

Disclosure of Invention

The invention aims to provide a forming device of a reinforced and toughened composite pipe aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to make the composite pipe produced by the forming device have higher strength and quality.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a former of compound pipe is toughened in reinforcing, includes forming die, its characterized in that, this former still includes outer tube support, the outer tube of level setting and can be with the coiling machine of reinforcing fiber cladding on the outer tube periphery wall, the tail end of outer tube stretches into in the forming die, and reinforcing fiber on the outer tube outer wall can form compound pipeline and stretch out from forming die's export with the melten material complex that pours into in the forming die, the head end of outer tube is connected on the outer tube support, the bottom of outer tube support is connected with the embedding piece, the embedding piece has the hook portion that is located outer tube support below.

In the process of pipeline production, a tractor is required to pull the manufactured and formed pipeline forward, so that the pipeline continuously extends out of the forming die, and continuous production is realized. In the molding equipment, the winding machine directly coats the reinforcing fibers on the peripheral wall of the outer tube, the reinforcing fibers are combined with the molten materials in the molding die, then a fiber reinforced composite pipeline is formed and extends into the molding die from the outlet end of the molding die, and then the molding and cooling are carried out. Obviously, the production principle of this compound pipe's former is totally different with current equipment, this former is not earlier through extruder extrusion pipe, then rethread coiler with reinforcing fiber winding on the pipe surface, but with melting material and continuous reinforcing fiber one step of shaping for compound pipeline in forming die, the melting material can be compatible, the infiltration with reinforcing fiber in forming die like this, consequently, the bonding effect is better, intensity is higher, and the problem that the interlayer bonding that does not exist the compound pipeline of current equipment production is not durable and causes the weakening of pipeline intensity.

And aiming at the special pipeline forming mode of the forming equipment, the traction force of the tractor is very large and can usually reach dozens of tons, and meanwhile, the continuous reinforced fibers are coated on the peripheral wall of the outer pipe, so the traction force can be transmitted to the outer pipe through the reinforced fibers, and the outer pipe has the tendency of moving. At this moment, through setting up the outer tube support, not only the installation of outer tube head end has been realized, and connect the embedding piece through the bottom at the outer tube support, and the embedding piece has the hook portion that is located the outer tube support below, be carrying out equipment fixing's in-process like this, alright pour the embedding piece in advance in the concrete floor, and then have stronger land fertility of grabbing, make the outer tube support have higher stability and can not appear horizontal translation because of the effect of tractive power, guarantee that the removal can not appear in the outer tube of equipment operation in-process, keep higher cooperation precision between outer tube and the forming die, and then guarantee the quality of product.

In the above molding apparatus for the reinforced and toughened composite pipe, the bottom of the outer pipe bracket has a bottom plate horizontally arranged, the insert includes a rod-shaped portion vertically arranged and a hook portion connected to the lower end of the rod-shaped portion, and the upper end of the rod-shaped portion is fixedly connected to the bottom plate. The rod-shaped part is convenient to be connected with the bottom plate on one hand, and on the other hand, the hook part can be embedded into a deeper position below the ground, so that the ground is prevented from cracking under the condition of shallow embedding.

In the above apparatus for forming a reinforced and toughened composite pipe, the bottom plate is rectangular and the inserts are disposed on at least two sides of the bottom plate. The forming die, the winding machine, the outer tube supporting frame and the extruder are sequentially arranged along the axis direction of the outer tube. Preferably, at least one of the above-mentioned inserts is provided on each of the side edges of the bottom plate in the direction toward the mold and the left and right side edges. Make many sides of bottom plate all receive the fixed of embedding piece through this design, and then further promote the stability of outer tube support through the embedding piece of a plurality of different positions, avoid the pulling force effect to arouse that the condition that outer tube support and outer tube appear removing, guarantee product quality high.

In the above forming apparatus for the reinforced and toughened composite pipe, the bottom plate is provided with a through hole through which the upper end of the rod-shaped portion passes, and the upper end of the rod-shaped portion is in threaded connection with a first nut tightly pressed on the top surface of the bottom plate. The design can facilitate the installation of the embedded part, so that the manufacture is convenient and the cost is low.

In foretell reinforcing and toughening composite pipe's former, this former still includes the extruder and wears to establish the core pipe in the outer tube, forming die includes outer die sleeve and mandrel, is formed with the shaping chamber between outer die sleeve and the mandrel and says, be connected with the discharging pipe on the discharge gate of extruder, the head end fixed connection of core pipe just is linked together with the discharging pipe on the outer tube support, the tail end of core pipe is linked together in stretching into forming die and saying with forming die's shaping chamber, outer tube and core pipe all set up with the axle center with outer die sleeve. The core pipe is communicated with the extruder, so that the molten material extruded by the extruder can enter the core pipe, and the molten material flowing out of the core pipe finally enters a forming cavity of the forming die. And set up the core pipe through the outer tube for core pipe, outer tube and outer die sleeve are with the axle center setting, and the molten material that the core pipe flowed out is unanimous with reinforcing fiber's mode of movement like this, can make the molten material in the shaping chamber say with reinforcing fiber better combination, and the molten material distributes evenly on the shaping chamber says that the week, and then makes the compound pipeline of making of high quality.

In foretell strengthening and toughening composite pipe's former, the outer tube support still includes the support body, and the head end of outer tube and the head end of core pipe are all connected on the support body, the bottom of support body has the backup pad that the level set up, the rubber pad has been laid between backup pad and the bottom plate, the adjusting bolt of a plurality of vertical settings is worn to be equipped with at the border of backup pad, be equipped with a plurality of and each adjusting bolt one-to-one's nut two on the bottom plate, the two threaded connection of nut that backup pad and correspond are passed to each adjusting bolt's pole portion, and adjusting bolt's head supports and leans on the top surface of backup pad. The forming die for forming the pipe is usually horizontally disposed, so that the outer tube and the core tube should be concentric with the outer jacket of the forming die, and the levelness of the outer tube and the core tube should be ensured firstly. At this moment, through this design, aim at makes the height of support body can adjust, and then adjusts the height of outer tube and core pipe head end to guarantee the levelness of outer tube and core pipe. Specifically, the rubber pad can be pressed downwards by screwing the adjusting bolt, and at the moment, the supporting plate is slightly displaced downwards by virtue of slight deformation of the rubber pad, and the head ends of the outer tube and the core tube are slightly lowered downwards; on the contrary, when the adjusting bolt is unscrewed, the rubber pad can rebound and deform to jack the supporting plate upwards, so that the head ends of the outer tube and the core tube are lifted upwards slightly.

In the above-mentioned forming equipment for the reinforced and toughened composite pipe, the support plate is rectangular and at least two sides parallel to each other of the support plate are respectively provided with the above-mentioned adjusting bolt, the bottom surface of the bottom plate is provided with a plurality of counter bores corresponding to the second nuts one by one, the second nuts are arranged in the corresponding counter bores, and a gasket is further arranged between the second nuts and the bottoms of the counter bores. Preferably, the side edge of the supporting plate close to the mold direction and the left and right side edges are respectively provided with three adjusting bolts. The pulling force of the tractor can be transmitted to the frame body through the outer pipe, so the connection between the bottom plate and the supporting plate also needs to be capable of bearing the action of the pulling force. The supporting plate is connected with the bottom plate through more adjusting bolts, so that on one hand, the connection stability between the bottom plate and the supporting plate is good by means of the adjusting bolts, and the situation of looseness caused by the action of a pulling force is avoided; on the other hand, the design also enables that in the adjusting process, according to the actual situation, the adjusting bolts of the adjusting part can be selected to adjust the height or the levelness of the supporting plate, so that higher adjusting precision is achieved, and higher concentricity among the outer pipe, the core pipe and the outer die sleeve can be ensured after adjustment.

In foretell forming equipment of reinforcing and toughening composite pipe, the head end of outer tube has flange one, the connecting plate of vertical setting has been linked firmly on the outer tube support, flange one's terminal surface pastes mutually with the side of connecting plate and leans on, flange one goes up to be equipped with a plurality of bolts one with connecting plate threaded connection along circumference. Due to the connecting structure between the outer pipe and the outer pipe bracket, the effect of the pulling force also needs to be borne. Consequently, through the vertical connecting plate that sets up on the outer tube support, set up flange one at the head end of outer tube simultaneously, flange one is connected through a plurality of bolts with the connecting plate, guarantees that connection stability is good between outer tube and the outer tube support, and then can resist great pulling force and the not hard up condition can not appear, avoids because the outer tube that becomes flexible, the aversion of outer tube arouses and the reduction of forming die cooperation precision to guarantee that product quality is good.

In the forming equipment of the reinforced and toughened composite pipe, the connecting plate is provided with a mounting hole, the head end of the core pipe is provided with a second connecting flange, the head end of the core pipe is inserted into the mounting hole, the second connecting flange is attached to the side surface of the connecting plate, a plurality of second bolts in threaded connection with the connecting plate are arranged on the second connecting flange along the circumferential direction, and the outlet end of the discharge pipe extends into the mounting hole and is inserted into the port of the core pipe. The head end of core pipe is pegged graft in the mounting hole, and the mounting hole has the location effect to the core pipe, and on this basis, the second flange of connection of core pipe head end passes through bolt two to be connected on the connecting plate, can further promote the stability of core pipe, makes equipment in the operation, and core pipe stability is good, can effectively guarantee its and outer tube and the concentricity between the outer die sleeve, and then guarantees that the melting material distributes evenly on the shaping chamber way week, and then the composite pipe wall that makes is even, of high quality.

In foretell reinforced and toughened composite pipe's former, the mounting hole is the step hole, have the annular bellying of pegging graft with the heavy-calibre section cooperation in step hole on the terminal surface of flange two, the internal diameter of annular bellying is the same with the internal diameter of the small-bore section in step hole, the exit end of discharging pipe matches with the small-bore section in step hole and annular bellying and pegs graft. The stepped hole is matched with the annular bulge, so that the stepped hole supports and radially positions the core pipe, the installation stability of the core pipe is good, and the influence of core pipe displacement on the forming quality of the composite pipeline is avoided. The inner diameter of the annular bulge part is the same as that of the small-caliber section of the step hole, so that the outlet end of the discharge pipe is in matched splicing with the small-caliber section of the step hole and the annular bulge part, the design enables the discharge pipe to have large splicing depth, the stability is good, and the discharge pipe can be guaranteed to stably convey molten materials to the core pipe.

Compared with the prior art, the forming equipment for the reinforced and toughened composite pipe has the following advantages:

1. this former is through one step of shaping compound pipeline with melting material and continuous reinforcing fiber in forming die, and the melting material can be compatible, the infiltration with reinforcing fiber in forming die like this, consequently combines the effect better, and intensity is higher, and does not have the problem that the interlayer bonding that the compound pipeline that current equipment produced exists is insecure to cause the weak of pipeline strength.

2. Through set up on outer tube support bury underground in the underground embedment for outer tube support has higher stability and can not appear horizontal translation owing to the effect of tractive power, guarantees that equipment operation in-process china and abroad pipe can not appear removing, keeps higher cooperation precision between outer tube and the forming die, and then guarantees the quality of product.

3. The molding equipment is manufactured and molded by a one-step method, has the advantage of high production efficiency, and can shorten the length of a production line, so that the equipment occupies a small space.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial cross-sectional view of the present invention.

FIG. 3 is a schematic view showing the connection of the outer tube holder and the outer tube according to the present invention.

Figure 4 is a cross-sectional view of the bottom of the outer tube support of the present invention.

FIG. 5 is a second cross-sectional view of the bottom of the outer tube support of the present invention.

Fig. 6 is an enlarged view at a in fig. 5.

FIG. 7 is an enlarged partial view of the top of the outer tube support of the present invention.

Fig. 8 is a sectional view of the molding die of the present invention.

In the figure, 1, a forming die; 1a, an outer die sleeve; 1b, a core mold; 1c, forming a cavity; 1d, a shunt; 1e, an annular cavity; 2. an outer tube support; 21. a base plate; 211. a via hole; 212. a counter bore; 22. a frame body; 23. a support plate; 24. a rubber pad; 25. a connecting plate; 251. mounting holes; 3. an outer tube; 31. a first connecting flange; 4. a winding machine; 5. an insert; 51. a rod-shaped portion; 52. a hook portion; 6. a first nut; 7. an extruder; 8. a discharge pipe; 9. adjusting the bolt; 10. a gasket; 11. a first bolt; 12. a core tube; 121. a second connecting flange; 122. an annular boss; 13. a second bolt; 14. a support sleeve; 15. a supporting seat; 16. a roller; 17. and a second screw cap.

Detailed Description

The following is a specific embodiment of the present invention and is further described with reference to the accompanying drawings, but the present invention is not limited to this embodiment.

As shown in fig. 1 and 2, the forming apparatus for the reinforced and toughened composite pipe includes a forming mold 1, an extruder 7, an outer pipe support 2, a horizontally arranged outer pipe 3, and a winding machine 4 capable of coating reinforcing fibers on the outer peripheral wall of the outer pipe 3, wherein a core pipe 12 penetrates through the outer pipe 3, a discharge pipe 8 is connected to a discharge port of the extruder 7, the head end of the core pipe 12 is communicated with the discharge pipe 8, and the core pipe 12 is communicated with the extruder 7 and then can provide molten materials, such as PE of the molten materials, into the forming mold. The tail end of the outer pipe 3 extends into the forming die 1, the reinforced fibers on the outer wall of the outer pipe 3 can be compounded with the melt injected into the forming die 1 to form a composite pipeline and extend out of the outlet of the forming die 1, and the head end of the outer pipe 3 is connected to the outer pipe support 2.

As shown in fig. 3, the outer tube bracket 2 further includes a frame body 22 and a bottom plate 21 horizontally disposed at the bottom, the bottom plate 21 is rectangular, the head ends of the outer tube 3 and the core tube 12 are both connected to the frame body 22, the bottom plate 21 is connected with 6 embedded parts 5 buried underground, and specifically, the side edge of the bottom plate 21 close to the direction of the mold, the left side edge of the bottom plate 21 and the right side plate of the bottom plate 21 are respectively provided with two embedded parts 5. Make many sides of bottom plate 21 all receive the fixed of insert 5 through this design, and then insert 5 through a plurality of different positions further promotes outer tube support 2's stability, avoids the pulling force effect to arouse that outer tube support 2 and outer tube 3 appear the condition of removing, guarantees product quality high.

As shown in fig. 4, the insert 5 includes a rod-shaped portion 51 vertically disposed and a hook portion 52 connected to a lower end of the rod-shaped portion 51, and an upper end of the rod-shaped portion 51 penetrates through the ground to be fixedly connected with the bottom plate 21. Specifically, the bottom plate 21 is provided with a through hole 211 through which the upper end of the rod-shaped portion 51 passes, and the upper end of the rod-shaped portion 51 is in threaded connection with a first nut 6 tightly pressed on the top surface of the bottom plate 21. The arrangement of the hook part 52 improves the ground gripping force, so that the embedded part 5 can bear large pulling force without moving, and the arrangement of the rod part 51 enables the hook part 52 to be embedded in a deep position below the ground, thereby avoiding the situation that the ground is cracked under the condition of shallow embedding.

As shown in fig. 5, the bottom of the frame body 22 is provided with a horizontally arranged support plate 23, the support plate 23 is rectangular, a rubber pad 24 is laid between the support plate 23 and the bottom plate 21, nine vertically arranged adjusting bolts 9 are penetrated at the edge of the support plate 23, a plurality of second nuts 17 corresponding to the adjusting bolts 9 one by one are arranged on the bottom plate 21, the rod part of each adjusting bolt 9 penetrates through the support plate 23 to be in threaded connection with the corresponding second nut 17, and the head part of the adjusting bolt 9 abuts against the top surface of the support plate 23. Specifically, as shown in fig. 4, three adjusting bolts 9 are respectively arranged on the side edge of the supporting plate 23 close to the mold direction and the left and right side edges, as shown in fig. 6, a plurality of counter bores 212 corresponding to the second nuts 17 one to one are arranged on the bottom surface of the bottom plate 21, the second nuts 17 are arranged in the corresponding counter bores 212, a gasket 10 is further arranged between the second nuts 17 and the hole bottoms of the counter bores 212, and the gasket 10 is preferably a loose gasket 10. The rubber pad 24 can be pressed downwards by screwing the adjusting bolt 9, and at the moment, the supporting plate 23 is slightly displaced downwards by virtue of slight deformation of the rubber pad 24, and the head ends of the outer tube 3 and the core tube 12 are slightly lowered downwards; on the contrary, when the adjusting bolt 9 is loosened, the rubber pad 24 can rebound and deform to jack the support plate 23 upwards, so that the head ends of the outer tube 3 and the core tube 12 are slightly raised upwards. Through this design, the purpose is to make the height of support body 22 can adjust, and then adjusts the height of outer tube 3 and core pipe 12 head end to guarantee the levelness of outer tube 3 and core pipe 12. Preferably, as shown in fig. 2, a support 15 is further provided between the forming die 1 and the winding machine 4, a roller 16 is provided on the support 15, a rotation axis of the roller 16 is perpendicular to an axis of the outer tube 3, and the reinforcing fibers on the outer circumferential wall of the outer tube 3 can be supported by the rotation of the roller 16.

As shown in FIG. 7, a first connecting flange 31 is arranged at the head end of the outer pipe 3, a vertically arranged connecting plate 25 is fixedly connected to the outer pipe support 2, the end face of the first connecting flange 31 is attached to the side face of the connecting plate 25, and a plurality of first bolts 11 in threaded connection with the connecting plate 25 are circumferentially arranged on the first connecting flange 31. The first connecting flange 31 is connected with the first connecting plate 25 through the first bolts 11, so that the stability of connection between the outer tube 3 and the outer tube support 2 is guaranteed to be good, further, larger pulling force can be resisted, the situation that looseness cannot occur is avoided, the reduction of the matching precision of the outer tube 3 and the forming die 1 caused by looseness and displacement of the outer tube 3 is avoided, and the good product quality is guaranteed.

As shown in fig. 7, a mounting hole 251 is formed in the connecting plate 25, a second connecting flange 121 is arranged at the head end of the core tube 12, the head end of the core tube 12 is inserted into the mounting hole 251, the second connecting flange 121 abuts against the side surface of the connecting plate 25, a plurality of second bolts 13 in threaded connection with the connecting plate 25 are circumferentially arranged on the second connecting flange 121, and the outlet end of the discharge tube 8 extends into the mounting hole 251 and is inserted into the port of the core tube 12. Further, the mounting hole 251 is a stepped hole, an annular protrusion 122 which is in matched insertion connection with the large-caliber section of the stepped hole is arranged on the end face of the second connecting flange 121, the inner diameter of the annular protrusion 122 is the same as that of the small-caliber section of the stepped hole, and the outlet end of the discharge pipe 8 is in matched insertion connection with the small-caliber section of the stepped hole and the annular protrusion 122. The inner diameter of the annular convex part 122 is the same as that of the small-caliber section of the stepped hole, so that the outlet end of the discharge pipe 8 is in matched insertion connection with the small-caliber section of the stepped hole and the annular convex part 122, the design enables the discharge pipe 8 to have larger insertion connection depth and good stability, and the stable melt conveying of the discharge pipe to the core pipe 12 can be guaranteed.

As shown in fig. 8, the forming mold 1 includes an outer mold sleeve 1a, a core mold 1b and a flow divider 1d fixedly connected to a front end of the core mold 1b are disposed in the outer mold sleeve 1a, the flow divider 1d is connected to a support sleeve 14 at a tail end of a core tube 12 through a bolt, and both the outer tube 3 and the core tube 12 are coaxially disposed with the outer mold sleeve 1 a. A forming cavity 1c is formed between the outer mold sleeve 1a and the core mold 1b, and the tail end of the core tube 12 extends into the forming mold 1 and is opposite to the flow divider 1d, so that the molten material flowing out of the core tube 12 can be divided by the flow divider 1d to be radially diffused all around so as to uniformly flow into the forming cavity 1 c. An annular cavity channel 1e which is opposite to the forming cavity channel 1c is formed between the outer peripheral wall of the outer pipe 3 and the inner peripheral wall of the outer die sleeve 1a, so that the reinforced fiber layer on the outer peripheral wall of the outer pipe 3 can penetrate through the forming cavity channel 1c and is combined with the molten material in the forming cavity channel 1 c.

When the production equipment of the reinforced and toughened composite pipe is manufactured, the formed composite pipe needs to be continuously pulled out of the forming die 1 by a tractor so as to realize continuous production. The tractor is prior art and not shown in the figures. The extruder 7 extrudes the molten material, for example, into the core tube 12 and flows into the molding die 1. Meanwhile, the winding machine 4 winds the continuous reinforcing fibers of the continuous reinforcing fibers on the peripheral wall of the outer tube 3 along the circumferential direction, the reinforcing fibers coated on the peripheral wall of the outer tube 3 continuously enter the forming die 1 under the action of the tractor, are combined with the molten material flowing out of the core tube 12 in the forming cavity 1c, then form a fiber reinforced composite pipeline, stretch into the fiber reinforced composite pipeline from the outlet end of the forming cavity 1c, and then are shaped and cooled. In the actual manufacturing process, an axial yarn feeding structure can be further arranged, the axial yarn feeding structure enables a plurality of continuous reinforcing fibers axially arranged along the outer tube 3 to be coated on the outer peripheral wall of the outer tube 3 to form an axial fiber layer, and the winding machine 4 winds the continuous reinforcing fibers on the outer portion of the axial fiber layer along the circumferential direction.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although 1, a forming die is used more herein; 1a, an outer die sleeve; 1b, a core mold; 1c, forming a cavity; 1d, a shunt; 1e, an annular cavity; 2. an outer tube support; 21. a base plate; 211. a via hole; 212. a counter bore; 22. a frame body; 23. a support plate; 24. a rubber pad; 25. a connecting plate; 251. mounting holes; 3. an outer tube; 31. a first connecting flange; 4. a winding machine; 5. an insert; 51. a rod-shaped portion; 52. a hook portion; 6. a first nut; 7. an extruder; 8. a discharge pipe; 9. adjusting the bolt; 10. a gasket; 11. a first bolt; 12. a core tube; 121. a second connecting flange; 122. an annular boss; 13. a second bolt; 14. a support sleeve; 15. a supporting seat; 16. a roller; 17. nut, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a former of compound pipe is toughened in reinforcing, includes forming die (1), its characterized in that, this former still includes outer tube support (2), outer tube (3) that the level set up and can stretch into forming die (1) with reinforcing fiber cladding coiling machine (4) on outer tube (3) periphery wall, the tail end of outer tube (3) stretches into forming die (1) in, and reinforcing fiber on outer tube (3) outer wall can form compound pipeline and stretch out from the export of forming die (1) with the melting material complex that injects in forming die (1), the head end of outer tube (3) is connected on outer tube support (2), the bottom of outer tube support (2) is connected with embedding piece (5), embedding piece (5) have curved hook portion (52) that are located outer tube support (2) below.

2. The forming device of the reinforced and toughened composite pipe as claimed in claim 1, wherein the bottom of the outer pipe bracket (2) is provided with a horizontally arranged bottom plate (21), the insert (5) further comprises a vertically arranged rod-shaped part (51), the hook part (52) is connected to the lower end of the rod-shaped part (51), and the upper end of the rod-shaped part (51) is fixedly connected with the bottom plate (21).

3. The apparatus for forming reinforced and toughened composite pipes as claimed in claim 2, wherein said bottom plate (21) is rectangular and said inserts (5) are provided on at least two sides of said bottom plate (21).

4. The forming equipment of the reinforced and toughened composite pipe as claimed in claim 2, wherein the bottom plate (21) is provided with a through hole (211) for the upper end of the rod-shaped part (51) to pass through, and the upper end of the rod-shaped part (51) is in threaded connection with a first nut (6) pressed on the top surface of the bottom plate (21).

5. The forming device of the reinforced and toughened composite pipe as claimed in any one of claims 2 to 4, wherein the forming device further comprises an extruder (7) and a core pipe (12) inserted into the outer pipe (3), the forming die (1) comprises an outer die sleeve (1a) and a core die (1b), a forming cavity (1c) is formed between the outer die sleeve (1a) and the core die (1b), a discharge pipe (8) is connected to a discharge port of the extruder (7), a head end of the core pipe (12) is fixedly connected to the outer pipe bracket (2) and communicated with the discharge pipe (8), a tail end of the core pipe (12) extends into the forming die (1) and is communicated with a forming cavity (1c) of the forming die (1), and the outer pipe (3) and the core pipe (12) are coaxially arranged with the outer die sleeve (1 a).

6. The forming equipment of the composite pipe with the functions of strengthening and toughening according to claim 5, wherein the outer pipe support (2) further comprises a support body (22), a supporting plate (23) horizontally arranged is arranged at the bottom of the support body (22), a rubber pad (24) is laid between the supporting plate (23) and the bottom plate (21), a plurality of vertically arranged adjusting bolts (9) are arranged at the edge of the supporting plate (23), a plurality of nut pairs (17) corresponding to the adjusting bolts (9) one by one are arranged on the bottom plate (21), the rod part of each adjusting bolt (9) penetrates through the supporting plate (23) and the corresponding nut pair (17) to be in threaded connection, and the head part of each adjusting bolt (9) is abutted against the top surface of the supporting plate (23).

7. The forming equipment of the reinforced and toughened composite pipe as claimed in claim 6, wherein said support plate (23) is rectangular and is provided with said adjusting bolts (9) on at least two parallel sides thereof, said bottom plate (21) is provided with a plurality of counter bores (212) corresponding to said nuts two (17) one to one, said nuts two (17) are disposed in the corresponding counter bores (212), and a spacer (10) is further disposed between said nuts two (17) and the bottoms of the counter bores (212).

8. The forming equipment for the reinforced and toughened composite pipe as claimed in claim 5, wherein the head end of the outer pipe (3) is provided with a first connecting flange (31), the outer pipe support (2) is fixedly connected with a vertically arranged connecting plate (25), the end surface of the first connecting flange (31) is attached to the side surface of the connecting plate (25), and a plurality of first bolts (11) which are in threaded connection with the connecting plate (25) are circumferentially arranged on the first connecting flange (31).

9. The forming equipment of the reinforced and toughened composite pipe as claimed in claim 8, wherein a mounting hole (251) is formed in the connecting plate (25), a second connecting flange (121) is arranged at the head end of the core pipe (12), the head end of the core pipe (12) is inserted into the mounting hole (251), the second connecting flange (121) is attached to the side surface of the connecting plate (25), a plurality of second bolts (13) in threaded connection with the connecting plate (25) are circumferentially arranged on the second connecting flange (121), and the outlet end of the discharge pipe (8) extends into the mounting hole (251) and is inserted into the port of the core pipe (12).

10. The forming equipment of the reinforced and toughened composite pipe as claimed in claim 9, wherein the mounting hole (251) is a stepped hole, the end face of the second connecting flange (121) is provided with an annular convex portion (122) which is matched and spliced with the large-caliber section of the stepped hole, the inner diameter of the annular convex portion (122) is the same as that of the small-caliber section of the stepped hole, and the outlet end of the discharge pipe (8) is matched and spliced with the small-caliber section of the stepped hole and the annular convex portion (122).