阅读说明：本技术 一种连续纤维预浸带内层壁增强波纹管及其生产设备 (Continuous fiber prepreg tape inner wall reinforced corrugated pipe and production equipment thereof ) 是由 谭燕 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种连续纤维预浸带内层壁增强波纹管,包括复合管体、管体熔接体和管端对接口,复合管体由连续纤维预浸带增强的复合内层壁和结构增刚波纹管构成,所述复合内层壁由抗腐蚀塑料内层、连续纤维预浸带增强层和过度塑料层组成,所述结构增刚波纹管由凹型结构塑料管和圆形结构塑料管构成,所述凹型结构塑料管由内置空心体、塑料支撑体构成,所述圆形结构塑料管由塑料圆管、增强内肋构成；管体熔接体包括端面对接型体与搭接熔接型体；管端对接口包括管接头与管承口,所述管接头由增强复合内层壁承压层内插入到管端塑料管体内壁熔接构成,所述管承口由管接头、防止管内介质渗漏的电熔密封带和经管端对接的电熔塑料熔合圈组成。(The invention discloses a continuous fiber prepreg tape inner layer wall reinforced corrugated pipe, which comprises a composite pipe body, a pipe body welding body and a pipe end butt joint, wherein the composite pipe body consists of a continuous fiber prepreg tape reinforced composite inner layer wall and a structure stiffening corrugated pipe; the pipe body welding body comprises an end face butt joint type body and a lap joint type body; the pipe end butt joint comprises a pipe joint and a pipe socket, wherein the pipe joint is formed by inserting a reinforced composite inner layer wall pressure bearing layer into the inner wall of a pipe end plastic pipe body in a welding mode, and the pipe socket is composed of the pipe joint, an electric melting sealing belt for preventing a medium in the pipe from leaking and an electric melting plastic fusion ring butted by the pipe end.)

1. The utility model provides a continuous fibers preimpregnation takes inlayer wall reinforcing bellows, includes composite pipe body (1), body heat sealing body (2) and pipe end interface (3), its characterized in that:

the composite pipe body (1) is composed of a composite inner layer wall (101) reinforced by a continuous fiber prepreg tape and a structural stiffening corrugated pipe (102), wherein the composite inner layer wall (101) is composed of an anti-corrosion plastic inner layer (1011), a continuous fiber prepreg tape reinforcing layer (1012) and a transition plastic layer (1013), the structural stiffening corrugated pipe (102) is composed of a concave structural plastic pipe (1021) and a circular structural plastic pipe (1022), the concave structural plastic pipe (1021) is composed of a built-in hollow body (10211) and a plastic support body (10212), and the circular structural plastic pipe (1022) is composed of a plastic circular pipe (10221) and a reinforcing inner rib (10222);

the pipe body welding body (2) comprises an end face butt joint type body (201) and an overlap welding type body (202);

the pipe end butt joint (3) comprises a pipe joint (301) and a pipe socket (302), the pipe joint (301) is formed by inserting the reinforced composite inner layer wall bearing layer (3011) into the inner wall of a pipe end plastic pipe body (3012) in a welding mode, and the pipe socket (302) is formed by the pipe joint, an electric melting band for preventing medium in the pipe from leaking and sealing and an electric melting plastic melting ring.

2. The production equipment for the continuous fiber prepreg tape inner layer wall reinforced corrugated pipe is characterized by comprising the following devices:

the manufacturing equipment of the concave corrugated pipe with the reinforced hollow inner cavity support rib on the inner layer wall of the continuous fiber prepreg tape comprises a concave corrugated pipe die (4) of the hollow inner cavity support rib of an extruder (401) and connected to the rearmost end of a production line, a vacuum box (5) of a sizing sleeve is arranged at the front end of the concave corrugated pipe die (4), a tractor (6) is arranged at the front end of the vacuum box (5), a prepreg tape composite forming machine (7) is arranged at the front end of the tractor (6), a crimping machine I (8) is arranged at the front end of the prepreg tape composite forming machine (7) in a 45-90-degree direction, a melt extrusion die head (9) of which the rear end is connected with a melt extruder (901) is arranged at the front end of the crimping machine I (8), a pipeline support I (10) is arranged at the front end of the melt extrusion die head (9), and a cooling spray head I (11) is arranged at the front end of the pipeline support I (10), a first pipeline cutting machine (12) is arranged at the front end of the first cooling spray header (11);

a continuous fiber prepreg tape inner layer wall reinforced hollow inner cavity support rib circular corrugated pipe manufacturing device is characterized in that a prepreg tape unreeling machine (13) is arranged at the rearmost end of a production line, a prepreg tape storage mechanism II (14) is arranged at the front end of the prepreg tape unreeling machine (13), a flat-opening die (15) of a composite thermoplastic material of an upper layer and a lower layer of a prepreg tape of which the side surfaces are connected with an extruder is arranged at the front end of the prepreg tape storage mechanism II (14), a spray water tank (16) is arranged at the front end of the flat-opening die (15), a crimping machine II (17) is arranged at the front end of the spray water tank (16) in a 45-90-degree direction, a heating drying gun I (18) is arranged on the front end side surface of the crimping machine II (17), a pipeline support II (19) is arranged at the front end side surface of the heating drying gun I (18), a hollow inner cavity support rib circular corrugated pipe forming machine (20) is arranged on the front end side surface of the pipeline support II (19), and a second cooling spray header (21) is arranged in front of the circular corrugated pipe forming machine (20), and a second cutting machine (22) is arranged in front of the second cooling spray header (21).

3. The production equipment of the continuous fiber prepreg tape inner layer wall reinforced corrugated pipe as claimed in claim 2, wherein the prepreg tape composite forming machine (7) comprises a prepreg tape unwinding double disc (701) arranged at the rearmost end, a prepreg tape storage mechanism I (702) is arranged at the front end of the prepreg tape unwinding double disc (701), and a prepreg tape heating gun (703) is arranged at the front end of the prepreg tape storage mechanism I (702).

4. The production equipment of the continuous fiber prepreg tape inner layer wall reinforced corrugated pipe is characterized in that the circular corrugated pipe forming machine (20) comprises a circular corrugated pipe extrusion die (2001) which is arranged at the rearmost end of the circular corrugated pipe extrusion die, the front end of the circular corrugated pipe extrusion die (2001) is provided with a vacuum cooling spray box (2002) with a built-in sizing sleeve, and the front end of the vacuum cooling spray box (2002) is provided with a second heating drying gun (2003).

Technical Field

The invention relates to a thermoplastic composite drain pipe, in particular to a continuous fiber prepreg belt inner layer wall reinforced corrugated pipe and production equipment thereof.

Background

The rainwater and sewage drainage pipe which is used in large quantity comprises a thermoplastic plastic double-flat-wall pipe, an inner rib pipe and a structural wall pipe, has the advantages of light weight, good rigidity, recoverability, reutilization, low cost and the like, and is widely applied to drainage pipe networks constructed in cities and towns and drainage pipe networks constructed in villages in China.

The problems are obvious when the thermoplastic double-flat-wall pipe, the inner rib pipe and the structural wall pipe are reused, such as:

firstly, the plastic wall of the bearing layer is too thin and is a pure plastic layer, the impact strength is very low, and the pipe is easy to damage and break due to no external collision and sharp object impact in the pipeline transportation and hoisting process and the backfilling process, so that the rainwater and sewage in the pipe are leaked;

secondly, the thermoplastic drain pipe which is not reinforced and compounded by fiber or metal has large linear expansion coefficient and is arranged at the pipe end in the inspection well, under the condition of not backfilling soil, the pipeline is shortened in a region with large temperature difference between day and night due to temperature reduction, and the pipe end can be pulled out from the inspection well to damage the installed thermoplastic drain pipe;

thirdly, in the prior art, the pipe end interface is prevented from leaking by adopting methods such as sealing of a socket spigot and socket rubber sealing ring, sealing of fusion of an electric melting band and sealing of a thermal shrinkage band (sleeve), and the like.

Disclosure of Invention

In order to solve the technical problems, the invention provides the following technical scheme:

the invention relates to a continuous fiber prepreg tape inner layer wall reinforced corrugated pipe and production equipment thereof, which comprises a composite pipe body, a pipe body welding body and a pipe end butt joint, wherein the composite pipe body consists of a continuous fiber prepreg tape reinforced composite inner layer wall and a structure stiffening corrugated pipe;

the pipe body welding body comprises an end face butt joint type body and a lap joint type body;

the pipe end butt joint comprises a pipe joint and a pipe socket, wherein the pipe joint is formed by inserting a reinforced composite inner wall pressure-bearing layer into the inner wall of a pipe end plastic pipe body in a welding mode, and the pipe socket is formed by the pipe joint, an electric melting belt for preventing a medium in the pipe from leaking and sealing and an electric melting plastic melting ring.

A production equipment of continuous fiber prepreg tape inner layer wall reinforced corrugated pipe comprises the following devices:

the manufacturing equipment of the continuous fiber prepreg tape inner layer wall reinforced hollow inner cavity support rib concave corrugated pipe comprises a concave corrugated pipe die of a hollow inner cavity support rib of an extruder, wherein the rearmost end of a production line is connected with the concave corrugated pipe die, the front end of the concave corrugated pipe die is provided with a vacuum box of a sizing sleeve, the front end of the vacuum box is provided with a tractor, the front end of the tractor is provided with a prepreg tape composite forming machine, the front end of the prepreg tape composite forming machine is provided with a first crimping machine in a 45-90-degree direction, the front end of the first crimping machine is provided with a melt extrusion die head of which the rear end is connected with a melt extruder, the front end of the melt extrusion die head is provided with a first pipeline support, the front end of the first pipeline support is provided with a first cooling spray head, and the front end of the first cooling spray head is provided with a first pipeline cutting machine;

the manufacturing equipment of the continuous fiber prepreg tape inner layer wall reinforced hollow inner cavity support rib circular corrugated pipe is characterized in that a prepreg tape unreeling machine is arranged at the rearmost end of a production line, a second prepreg tape storage mechanism is arranged at the front end of the second prepreg tape unreeling machine, a plain end die of the composite thermoplastic material of the upper and lower surface layers of the prepreg tape, the side surface of which is connected with an extruder, is arranged at the front end of the second prepreg tape storage mechanism, a spray water tank is arranged at the front end of the flat-mouth die, a second crimping machine is arranged at the front end of the spray water tank in a direction of 45-90 degrees, a first heating drying gun is arranged on the side face of the front end of the second crimping machine, a second pipeline support is arranged at the front end of the first heating drying gun, the side surface of the front end of the second pipeline bracket is provided with a hollow inner cavity supporting rib circular corrugated pipe forming machine, and a second cooling spray header is arranged in front of the circular corrugated pipe forming machine, and a second cutting machine is arranged in front of the second cooling spray header.

As a preferred technical scheme of the invention, the prepreg tape composite forming machine comprises a prepreg tape unwinding double disc arranged at the rearmost end, a prepreg tape storage mechanism I is arranged at the front end of the prepreg tape unwinding double disc, and a prepreg tape heating gun is arranged at the front end of the prepreg tape storage mechanism I.

As a preferable technical scheme of the invention, the circular corrugated pipe forming machine comprises a circular corrugated pipe extrusion die which is arranged at the rearmost end of the circular corrugated pipe extrusion die and connected with the circular corrugated pipe extrusion die, a vacuum cooling spray box with a built-in sizing sleeve is arranged at the front end of the circular corrugated pipe extrusion die, and a second heating drying gun is arranged at the front end of the vacuum cooling spray box.

The invention has the beneficial effects that:

1. the thermoplastic corrugated pipe is reinforced on the inner wall by using the continuous fiber prepreg tape, so that the linear expansion coefficient is greatly reduced, the size and temperature of the pipe body are further reached, the installed thermoplastic drain pipe is realized, and the pipe end cannot be pulled out of the inspection well;

2. the continuous fiber prepreg tape is arranged on the inner-layer wall reinforced thermoplastic corrugated pipe, and the high-strength and high-toughness glass fiber tape with the double-layer superposition of 0-90 degrees has a protection effect, so that the external impact stress can be greatly absorbed and then the effect of protecting a pressure-bearing layer is achieved, and external collision and impact damage of sharp objects are avoided;

3. on one hand, the hot melting butt joint port has low requirement on the size of the pipe end, and the butt joint port with a certain difference or error in the outer wall can also meet the long-term non-leakage use requirement of a pipe network, so that the leakage of the port caused by the size error of the pipe end in the manufacturing process can be avoided; on the other hand, the pipe end hot melting butt joint is suitable for integral welding, and the interface leakage phenomenon caused by interface deformation due to uneven settlement of a foundation can be avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic cross-sectional view of a plastic pipe with a concave structure, in which a continuous fiber prepreg tape with an inner wall reinforcing corrugated pipe is used;

FIG. 2 is a schematic cross-sectional view of a circular structure plastic pipe with an inner wall reinforcing corrugated pipe of a continuous fiber prepreg tape according to the present invention;

FIG. 3 is a schematic view of the end-to-end interface of a continuous fiber prepreg tape inner wall reinforced corrugated tubing of the present invention;

FIG. 4 is a schematic view of a manufacturing apparatus for a concave corrugated tube with inner layer wall reinforcing hollow cavity support ribs according to the present invention;

FIG. 5 is a schematic view of an apparatus for manufacturing a continuous fiber prepreg tape inner layer wall reinforced hollow cavity support rib circular corrugated tube of the present invention.

In the figure: 1. a composite pipe body; 101. a composite inner wall; 102. a structural stiffening bellows; 1011. an inner layer of corrosion resistant plastic; 1012. a continuous fiber prepreg tape reinforcement layer; 1013. a transition plastic layer; 1021. a plastic tube with a concave structure; 10211. a hollow body is arranged inside; 10212. a plastic support; 1022. a plastic pipe of circular structure; 10221. a plastic circular tube; 10222. enhancing the internal aid; 2. a pipe body welding body; 201. end surface butt joint type body; 202. lap welding the molded body; 3. a pipe end interface; 301. a pipe joint; 3011. reinforcing the composite inner wall bearing layer; 3012. a pipe end plastic pipe body; 302. a pipe bell mouth; 4. a concave bellows mold; 401. an extruder; 5. a vacuum box; 6. a tractor; 7. a prepreg tape composite forming machine; 701. the prepreg tape is unreeled on two disks; 702. a first prepreg tape storage mechanism; 703. a prepreg tape heating gun; 8. a first crimping machine; 9. a melt extrusion die head; 901. a melt extruder; 10. a first pipeline bracket; 11. cooling the spray header I; 12. a first cutting machine; 13. a prepreg tape unreeling machine; 14. a second prepreg tape storage mechanism; 15. a flat-end mold; 16. a spray water tank; 17. a second crimping machine; 18. heating the first baking gun; 19. a second pipeline bracket; 20. a circular corrugated pipe forming machine; 2001. a circular corrugated pipe extrusion die; 2002. vacuum cooling spray box; 2003. heating a second baking gun; 21. cooling the spray header II; 22. and a second cutting machine.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, the continuous fiber prepreg tape inner layer wall reinforced corrugated pipe and the production equipment thereof of the present invention comprises a composite pipe body 1, a pipe body fusion body 2 and a pipe end interface 3, wherein the composite pipe body 1 is composed of a continuous fiber prepreg tape reinforced composite inner layer wall 101 and a structural stiffening corrugated pipe 102, the composite inner layer wall 101 is composed of an anti-corrosion plastic inner layer 1011, a continuous fiber prepreg tape reinforcing layer 1012 and a transition plastic layer 1013, the structural stiffening corrugated pipe 102 is composed of a concave structural plastic pipe 1021 and a circular structural plastic pipe 1022, the concave structural plastic pipe 1021 is composed of a built-in hollow body 10211 and a plastic support 10212, and the circular structural plastic pipe 1022 is composed of a plastic circular pipe 10221 and a reinforcing inner rib 10222;

the pipe body welding body 2 comprises an end face butt joint type body 201 and a lap joint type body 202;

the pipe end butt joint 3 comprises a pipe joint 301 and a pipe socket 302, the pipe joint 301 is formed by inserting a reinforced composite inner layer wall pressure bearing layer 3011 into the inner wall of a pipe end plastic pipe body 3012 and welding, and the pipe socket 302 is composed of the pipe joint, an electric melting band for preventing medium in the pipe from leaking and sealing, and an electric melting plastic melting ring.

As shown in fig. 4 to 5, a production apparatus for continuous fiber prepreg tape inner layer wall reinforced corrugated pipe comprises the following devices:

the manufacturing equipment of the concave corrugated pipe with the reinforced hollow cavity supporting rib on the inner layer wall of the continuous fiber prepreg tape is characterized in that the rearmost end of a production line is connected with a concave corrugated pipe die 4 of the hollow cavity supporting rib of an extruder 401, the front end of the concave corrugated pipe mould 4 is provided with a vacuum box 5 of a sizing sleeve, the front end of the vacuum box 5 is provided with a tractor 6, the front end of the tractor 6 is provided with a prepreg tape composite forming machine 7, the front end of the prepreg tape composite forming machine 7 is provided with a crimping machine I8 in the direction of 45-90 degrees, the front end of the crimping machine I8 is provided with a melt extrusion die head 9 of which the rear end is connected with a melt extruder 901, a first pipeline support 10 is arranged at the front end of the melt extrusion die head 9, a first cooling spray header 11 is arranged at the front end of the first pipeline support 10, and a first pipeline cutting machine 12 is arranged at the front end of the first cooling spray header 11;

a continuous fiber prepreg tape inner layer wall reinforced hollow inner cavity support rib circular corrugated pipe manufacturing device is characterized in that a prepreg tape unreeling machine 13 is arranged at the rearmost end of a production line, a prepreg tape storage mechanism II 14 is arranged at the front end of the prepreg tape unreeling machine 13, a flat-mouth mold 15 of a composite thermoplastic material of an upper layer and a lower layer of a prepreg tape of an extruder is arranged at the front end of the prepreg tape storage mechanism II 14, a flat-mouth mold 15 of a composite thermoplastic material of an upper layer and a lower layer of the prepreg tape of which the side surfaces are connected with the extruder is arranged at the front end of the flat-mouth mold 15, a spray water tank 16 is arranged at the front end of the spray water tank 16, a crimping machine II 17 is arranged at the front end of the spray water tank 16 in a 45-90-degree direction, a heating drying gun I18 is arranged at the front end of the crimping machine II 17, a pipeline support II 19 is arranged at the front end of the pipeline support II 19, a hollow inner cavity support rib circular corrugated pipe forming machine 20 is arranged at the front of the circular corrugated pipe forming machine 20, and a cooling spray head II 21 is arranged in front of the circular corrugated pipe forming machine, and a second cutting machine 22 is arranged in front of the second cooling spray header 21.

The prepreg tape composite forming machine 7 comprises a prepreg tape unwinding double disc 701 arranged at the rearmost end, wherein a prepreg tape storage mechanism I702 is arranged at the front end of the prepreg tape unwinding double disc 701, and a prepreg tape heating gun 703 is arranged at the front end of the prepreg tape storage mechanism I702.

The circular corrugated pipe forming machine 20 comprises a circular corrugated pipe extrusion die 2001 connected to the rearmost end of the circular corrugated pipe extrusion die 2001, a vacuum cooling spray box 2002 with a built-in sizing sleeve is arranged at the front end of the circular corrugated pipe extrusion die 2001, and a second heating drying gun 2003 is arranged at the front end of the vacuum cooling spray box 2002.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.