A braided reinforced flexible composite pipe production line and production method

Abstract

The present invention discloses a braided reinforced flexible composite pipe production line and production method, belonging to the technical field of composite reinforced pipe production. It includes: an outer pipe mold, which is provided with an outer pipe extrusion channel; an inner pipe mold, which is movably arranged on a worktable and provided with a first inner pipe extrusion channel, a gap is left between the inner pipe mold and the outer pipe mold to form a reinforcement layer channel and a second inner pipe extrusion channel, the first inner pipe extrusion channel and the reinforcement layer channel are respectively connected with the second inner pipe extrusion channel; a braiding machine, which is used to braid and convey the reinforcement layer, the reinforcement layer passes through the reinforcement layer channel and extends into the second inner pipe extrusion channel, the outer pipe mold, the inner pipe mold and the braiding machine form a finished pipe extrusion assembly and can continuously produce finished pipes. The three independent devices of the outer pipe mold, the inner pipe mold and the braiding machine form a finished pipe extrusion assembly, control the outer pipe extruder, the inner pipe extruder and the braiding machine to discharge materials synchronously, and produce finished pipes with a multi-layer structure, thereby improving production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of composite reinforced pipe production, and specifically relates to a braided reinforced flexible composite pipe production line, and also relates to a braided reinforced flexible composite pipe production method. Background Art

[0002] The braided reinforced composite tube is mainly composed of an inner tube, an outer tube and a braided reinforcement layer between the inner and outer tubes. At present, the braided reinforced composite tube is generally manufactured in a discrete process, that is, the circular braided reinforcement layer is first processed and cut into a fixed length, and the plastic thin-walled inner tube is processed and cut into a fixed length. Then, the outer wall of the plastic thin-walled inner tube is coated with glue and inserted into the braided reinforcement layer. The two-end inflation heating method is used to make the outer wall of the thin-walled inner tube and the inner wall of the braided reinforcement layer firmly bonded, and then the assembly of the thin-walled inner tube and the braided reinforcement layer is formed on the outer wall tube extrusion production line.

[0003] It is precisely because of the discrete processing steps that the entire braided reinforced composite pipe cannot be produced continuously, resulting in problems such as low work production efficiency and large loss of raw materials. Summary of the invention

[0004] The present invention aims at the above-mentioned problems existing in the prior art and proposes a braided reinforced flexible composite pipe production line and a production method which can directly produce finished pipes.

[0005] The present invention can be achieved through the following technical solutions:

[0006] A braided reinforced flexible composite pipe production line, comprising:

[0007] An outer tube die, which is provided with an outer tube extrusion channel;

[0008] an inner tube mold, which is movably arranged on the worktable, the inner tube mold is provided with a first inner tube extrusion channel, the inner tube mold has a first position and a second position, when the inner tube mold is in the first position, the inner tube mold is separated from the outer tube mold, when the inner tube mold is in the second position, the inner tube mold is inserted into the inner cavity of the outer tube mold with a gap between the two and forming a reinforcement layer channel and a second inner tube extrusion channel, the first inner tube extrusion channel and the reinforcement layer channel are respectively connected to the second inner tube extrusion channel;

[0009] A braiding machine is used to braid and convey a reinforcing layer. When the inner tube mold is in a first position, the reinforcing layer is introduced into an inner cavity of the outer tube mold. When the inner tube mold moves to the second position, the reinforcing layer passes through the reinforcing layer channel and is located in the second inner tube extrusion channel. At this time, the outer tube mold, the inner tube mold and the braiding machine form a finished tube extrusion assembly and can continuously produce finished tubes.

[0010] As a further improvement of the present invention, the inner tube mold includes a first inner tube mold and a second inner tube mold, the first inner tube mold is connected to the second inner tube mold and the two are located on the same axis.

[0011] As a further improvement of the present invention, the first inner tube extrusion channel is formed between the first inner tube mold and the second inner tube mold.

[0012] As a further improvement of the present invention, when the inner tube mold is located at the second position, the second inner tube extrusion channel is formed between the second inner tube mold and the outer tube mold, and the reinforcement layer channel is formed between the first inner tube mold and the outer tube mold.

[0013] As a further improvement of the present invention, the width of the reinforcement layer channel is smaller than the width of the second inner tube extrusion channel.

[0014] As a further improvement of the present invention, the outer tube extrusion channel, the reinforcement layer channel and the second inner tube extrusion channel are respectively located as an outer layer, a middle layer and an inner layer.

[0015] As a further improvement of the present invention, it also includes an inner tube extrusion device, which has:

[0016] Guide rail platform;

[0017] an inner tube extruder, which is movably arranged on the guide rail platform, the inner tube extruder is connected to the first inner tube mold, and the extrusion port of the inner tube extruder is communicated with the first inner tube extrusion channel;

[0018] A driving unit is arranged on the inner tube extruder and is used to drive the inner tube extruder to move along the guide rail platform, and as the inner tube extruder moves, the first inner tube mold and the second inner tube mold are driven to move synchronously.

[0019] As a further improvement of the present invention, it also includes an outer tube extruder, which is detachably connected to the outer tube mold and communicated with the outer tube extrusion channel.

[0020] As a further improvement of the present invention, it also includes a vacuum shaping spray machine, a spray box, a traction machine and a coiler which are sequentially arranged at subsequent workstations of the finished pipe extrusion assembly. The traction machine pulls the molded pipe extruded from the finished pipe extrusion assembly, and the molded pipe enters the coiler for coiling and storage after being cooled and shaped by the vacuum shaping spray machine and the spray box.

[0021] The present invention also provides a method for producing a braided reinforced flexible composite pipe, comprising the following steps:

[0022] S1, moving the inner tube extruder and driving the inner tube mold to move to a first position, at which time the inner tube mold is separated from the outer tube mold;

[0023] S2, introducing the reinforcement layer woven by the braiding machine into the inner cavity of the outer tube mold;

[0024] S3, by moving the inner tube extruder and driving the inner tube die to move to a second position, a reinforcement layer channel is formed between the first inner tube die and the outer tube die, and a second inner tube extrusion channel is formed between the second inner tube die and the outer tube die, at which time the reinforcement layer passes through the reinforcement layer channel and is located in the second inner tube extrusion channel;

[0025] S4. When the inner tube mold moves to the second position, the outer tube mold, the inner tube mold and the braiding machine form a finished tube extrusion assembly. As the inner tube extruder, the braiding machine and the outer tube extruder discharge materials synchronously, the finished tube extrusion assembly continuously extrudes finished tubes.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The three independent devices of outer tube mold, inner tube mold and braiding machine form a finished pipe extrusion assembly. It only needs to control the synchronous discharge of the outer tube extruder, inner tube extruder and braiding machine to produce finished pipes with multi-layer structure, thereby improving production efficiency.

[0028] 2. In the process of producing finished pipes, the outer tube extruder and the inner tube extruder continuously discharge materials, while the braiding machine weaves online and continuously outputs the reinforcement layer, thereby continuously producing finished pipes. While improving production efficiency, it also achieves the purpose of producing finished pipes of sufficient length at one time.

[0029] 3. The inner tube mold can move along the axial direction and has a first position and a second position. When the inner tube mold is in the first position, the inner tube mold is separated from the outer tube mold. At this time, the reinforcement layer is introduced into the inner cavity of the outer tube mold, and then the inner tube mold is controlled to move to the second position. The inner tube mold, the outer tube mold and the braiding machine can form a finished pipe extrusion assembly and complete the preliminary preparation work. The operation is simple, and in the process of producing finished pipes from the finished pipe extrusion assembly, no human intervention is required, which reduces labor cost expenditure.

[0030] 4. Since the reinforcement layer is a braided layer, its thickness is relatively thin, and the reinforcement layer channel serves as an introduction channel for the reinforcement layer, and its width is set to match the size of the reinforcement layer, ensuring that the reinforcement layer will not loosen in the reinforcement layer channel and guiding the continuous conveying process of the reinforcement layer, thereby ensuring that the braiding machine can continuously and smoothly convey the reinforcement layer to the second inner tube extrusion channel and weld it with the inner tube.

[0031] 5. There is an angle between the part of the reinforcing layer outside the reinforcing layer channel and the part that has entered the reinforcing layer channel. The bend between the two parts will be close to the corner of the outer tube mold. The corner of the outer tube mold is set to be rounded to ensure that the corner of the outer tube mold will not damage the added layer. At the same time, the reinforcing layer channel is set at an angle, which plays a role in smooth transition of the transportation of the reinforcing layer.

[0032] 6. The outer tube mold is detachably connected to the outer tube extruder through a connecting tube. After the braiding machine is turned on, the operator needs to adjust it. At this time, move the outer tube mold away from the braiding machine to ensure that there is enough space for the operator to adjust the braiding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the braided reinforced flexible composite pipe production line of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the finished pipe extrusion assembly of the present invention;

[0035] Figure 3 The present invention Figure 2 A partial enlarged view of point A in the middle.

[0036] In the figure, 100, outer tube mold; 110, outer tube extrusion channel; 120, outer tube extruder; 130, connecting tube;

[0037] 200, inner tube mold; 201, first inner tube mold; 202, second inner tube mold; 210, first inner tube extrusion channel; 220, second inner tube extrusion channel; 230, reinforcement layer channel; 240, guide rail platform; 250, inner tube extruder; 260, drive unit;

[0038] 300, braiding machine; 310, reinforcement layer;

[0039] 400. Finished pipe extrusion assembly;

[0040] 500, vacuum setting spray machine; 600, spray box; 700, traction machine; 800, coiling machine. DETAILED DESCRIPTION

[0041] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0042] like Figure 1-3 As shown, the present invention provides a braided reinforced flexible composite pipe production line, comprising:

[0043] The outer tube mold 100 is provided with an outer tube extrusion channel 110. The outer tube material entering the outer tube mold 100 is gradually extruded into an outer tube in the outer tube extrusion channel 110. At this time, the outer tube is not formed and has a sufficient temperature for welding.

[0044] The inner tube mold 200 is movably arranged on the work surface. The inner tube mold 200 is provided with a first inner tube extrusion channel 210. Similarly, the inner tube material entering the inner tube mold 200 is gradually extruded into an inner tube in the first inner tube extrusion channel 210. At this time, the inner tube is not formed and has a sufficient temperature for welding.

[0045] Specifically, in this embodiment, the inner tube mold 200 has a first position and a second position. When the inner tube mold 200 is in the first position, the inner tube mold 200 is separated from the outer tube mold 100. When the inner tube mold 200 is in the second position, the inner tube mold 200 is inserted into the inner cavity of the outer tube mold 100. At this time, a gap is left between the outer wall of the inner tube mold 200 and the inner wall of the outer tube mold 100, and a reinforcement layer channel 230 and a second inner tube extrusion channel 220 are formed, wherein the first inner tube extrusion channel 210 and the reinforcement layer channel 230 are respectively connected to the second inner tube extrusion channel 220.

[0046] The braiding machine 300 is used to braid and transport the reinforcing layer 310. That is, the braiding machine 300 can weave the reinforcing layer 310 online, and the reinforcing layer 310 has been braided and formed when it is transported outward from the braiding machine 300. The specific structure of the reinforcing layer 310 can be designed according to actual needs, and only the corresponding braiding machine 300 needs to be replaced. Therefore, the specific structure of the braiding machine 300 and the reinforcing layer 310 is not described in detail in this embodiment;

[0047] In addition, it is worth mentioning that when the inner tube mold 200 is in the first position, since the inner tube mold 200 is separated from the outer tube mold 100, the reinforcing layer 310 can be smoothly introduced into the inner cavity of the outer tube mold 100. After the reinforcing layer 310 is introduced into the inner cavity of the outer tube mold 100, the inner tube mold 200 is controlled to move toward the direction of the outer tube mold 100 and gradually extend into the inner cavity of the outer tube mold 100. In this process, the inner tube mold 200 will gradually push the reinforcing layer 310 so that the reinforcing layer 310 is close to the inner wall of the outer tube mold 100 until the inner tube mold 200 is completely moved to the second position. The position of the reinforcing layer 310 is shown as first passing through the reinforcing layer channel 230 and then entering the second inner tube extrusion channel 220. At this time, the outer tube mold 100, the inner tube mold 200 and the braiding machine 300 are three independent parts to form a finished pipe extrusion assembly 400;

[0048] Specifically, after the finished tube extrusion assembly 400 has been formed, it is only necessary to control the external outer tube extrusion device, the inner tube extrusion device and the braiding machine 300 to discharge materials synchronously. In this process, the outer tube material is gradually extruded in the independent outer tube extrusion channel 110 to form an outer tube to be welded, and the inner tube material is also gradually extruded and formed into an inner tube to be welded in the process of passing through the first inner tube channel and entering the second inner tube channel, while the reinforcing layer 310 is continuously extruded and welded with the inner tube to be welded in the second inner tube channel.

[0049] Furthermore, since in the present embodiment, the outer tube extrusion channel 110 is located in the outer layer of the second inner tube extrusion channel 220, as the inner tube and the reinforcement layer 310 are extruded outward from the second inner tube extrusion channel 220, and at the same time the outer tube is extruded outward from the outer tube extrusion channel 110 and evenly falls on the reinforcement layer 310, the outer tube and the reinforcement layer 310 can be automatically welded at this time. After the outer tube, the reinforcement layer 310 and the inner tube are automatically welded, a reinforced composite tube with a three-layer structure, that is, a finished pipe, can be formed.

[0050] In summary, the present invention forms a combination of three originally independent devices through the coordination relationship among the inner tube mold 200, the outer tube mold 100 and the braiding machine 300. As the three devices discharge materials synchronously, the entire combination can directly produce a finished pipe with a three-layer structure. Moreover, since the external inner tube extrusion device, the outer tube extrusion device and the above-mentioned braiding machine 300 can continuously discharge materials, the entire combination can continuously produce finished pipes, and finally form a finished pipe with a sufficient length. Moreover, the entire production process is continuous. After the production starts, no manual intervention is required, which greatly improves the production efficiency and reduces the labor cost.

[0051] Preferably, the inner tube mold 200 includes a first inner tube mold 201 and a second inner tube mold 202, wherein the first inner tube mold 201 is connected to the second inner tube mold 202 and the two are located on the same axis, wherein the inner tube material first enters the first inner tube mold 201 and then enters the second inner tube mold 202, and is extruded and melted with the reinforcing layer 310 in the second inner tube mold 202.

[0052] Preferably, the internal channel of the first inner tube mold 201 and the gap between the first inner tube mold 201 and the second inner tube mold 202 form a complete first inner tube extrusion channel 210, and the inner tube material is extruded in the first inner tube extrusion channel 210 to form an inner tube to be welded.

[0053] Preferably, when the inner tube mold 200 is located in the second position, a second inner tube extrusion channel 220 is formed between the second inner tube mold 202 and the outer tube mold 100, and a reinforcement layer channel 230 is formed between the first inner tube mold 201 and the outer tube mold 100, wherein the reinforcement layer channel 230 is connected to the top of the second inner tube extrusion channel 220, that is, during the process of extruding and welding the inner tube and the reinforcement layer 310 to be welded in the second inner tube extrusion channel 220, the reinforcement layer 310 is covered on the outer layer of the inner tube to be welded.

[0054] Further preferably, the outer tube extrusion channel 110, the reinforcement layer channel 230 and the second inner tube extrusion channel 220 are respectively located in the outer layer, the middle layer and the inner layer. Therefore, the structure of the composite tube finally formed should be that the outer tube is located in the outer layer, the reinforcement layer 310 is located in the middle layer, and the inner tube is located in the inner layer. Thus, the reinforcement layer 310 can improve the pressure resistance of the entire composite tube.

[0055] Preferably, the width of the reinforcement layer channel 230 is smaller than the width of the second inner tube extrusion channel 220. Specifically, since the reinforcement layer 310 is a braided layer, its thickness is relatively thin. The reinforcement layer channel 230 serves as an introduction channel for the reinforcement layer 310, and its width is set to match the size of the reinforcement layer 310, ensuring that the reinforcement layer 310 will not loosen in the reinforcement layer channel 230, thereby ensuring that the braiding machine 300 can continuously and smoothly transport the reinforcement layer 310 into the second inner tube extrusion channel 220 and weld it with the inner tube.

[0056] In addition, in this embodiment, there is an angle between the portion of the reinforcing layer 310 located outside the reinforcing layer channel 230 and the portion that has entered the reinforcing layer channel 230, and the bend between the two portions will be close to the corners of the outer tube mold 100. Therefore, in order to ensure that the corners of the outer tube mold 100 will not damage the added layer, the corners of the outer tube mold 100 are set to be rounded, so that the above two portions of the reinforcing layer 310 can transition smoothly.

[0057] Furthermore, an acute angle is formed between the reinforcing layer channel 230 and the horizontal plane, that is, the reinforcing layer channel 230 is inclined, which also plays a role in smooth transition of the transportation of the reinforcing layer 310 .

[0058] Preferably, it also includes an inner tube extrusion device, which has:

[0059] Guide rail platform 240;

[0060] The inner tube extruder 250 is movably arranged on the guide rail platform 240, and the inner tube extruder 250 is connected to the first inner tube mold 201, so that the movement of the inner tube extruder 250 can drive the first inner tube mold 201 and the second inner tube mold 202 to move synchronously, thereby achieving the purpose of moving the inner tube mold 200 back and forth between the first position and the second position, and the extrusion port of the inner tube extruder 250 is connected to the first inner tube extrusion channel 210;

[0061] The driving unit 260 is arranged on the inner tube extruder 250 and is used to drive the inner tube extruder 250 to move along the guide rail platform 240. Since the driving unit 260 driving the inner tube extruder 250 to move along the guide rail platform 240 is the prior art, the specific structures of the inner tube extruder 250, the driving unit 260 and the guide rail platform 240 are not described in detail.

[0062] Preferably, an outer tube extruder 120 is further included, which is detachably connected to the outer tube die 100 and communicated with the outer tube extrusion channel 110. Specifically, in this embodiment, an additional connecting pipe 130 is provided between the extrusion port of the outer tube extruder 120 and the outer tube die 100. One end of the connecting pipe 130 is connected to the outer tube die 100 and the other end is detachably connected to the extrusion port of the outer tube extruder 120. That is, the operator only needs to remove the connecting pipe 130 from the extrusion port of the outer tube extruder 120 to adjust the position of the outer tube die 100.

[0063] The reason for this arrangement is that the position of the braiding machine 300 is fixed, and after the braiding machine 300 is turned on, the operator needs to adjust it. At this time, the outer tube mold 100 is moved away from the braiding machine 300 to ensure that there is enough space for the operator to adjust the braiding machine 300. After the adjustment is completed, the outer tube mold 100 is moved to its original position and the connecting tube 130 is connected to the extrusion port of the outer tube extruder 120.

[0064] It is also worth mentioning that in the present embodiment, the inner tube material is fed from the middle of the inner tube mold 200, and the outer tube material is fed from the top of the outer tube mold 100, but the specific feeding position can be adaptively adjusted according to actual needs. On this basis, the outer tube extruder 120, the outer tube mold 100 and the inner tube extruder 250, the inner tube mold 200 in the present embodiment are arranged at an angle of 90°, and this placement position can also be adaptively adjusted according to actual needs, so different placement positions should all fall within the protection scope of the present invention.

[0065] Preferably, it also includes a vacuum shaping spray machine 500, a spray box 600, a traction machine 700 and a coiling machine 800 which are sequentially arranged at the subsequent stations of the finished pipe extrusion assembly 400. Specifically, the traction machine 700 is used to pull the formed pipe extruded by the finished pipe extrusion assembly 400 forward, and the formed pipe enters the coiling machine 800 for coiling and storage after being cooled and shaped by the vacuum shaping spray machine 500 and the spray box 600.

[0066] It should be noted here that the specific equipment selection for cooling and shaping the finished pipe is not limited to the vacuum shaping spray machine 500 and the spray box 600, and the setting of the winder 800 is also an adaptive choice made due to the different specific products. For example, the reinforced composite pipe in this embodiment has inner and outer tubes made of rubber material, and the reinforcing layer 310 is woven. Therefore, the entire finished pipe has a certain flexibility and can be folded and coiled to reduce the space resources occupied by the finished pipe, which is convenient for subsequent transportation and installation. After being restored by external force, it can be used as a long-distance underground pipeline. Therefore, the winder 800 is set accordingly. If a rigid composite pipe is produced, the winder 800 can be set to other devices accordingly.

[0067] Based on the above-mentioned braided reinforced flexible composite pipe production line, the present invention also provides a braided reinforced flexible composite pipe production method, comprising the following steps:

[0068] S1, by moving the inner tube extruder 250 and driving the inner tube mold 200 to move to the first position, at which time the inner tube mold 200 is separated from the outer tube mold 100;

[0069] S2, introducing the reinforcement layer 310 woven by the braiding machine 300 into the inner cavity of the outer tube mold 100;

[0070] S3, by moving the inner tube extruder 250 and driving the inner tube mold 200 to move to the second position, a reinforcement layer channel 230 is formed between the first inner tube mold 201 and the outer tube mold 100, and a second inner tube extrusion channel 220 is formed between the second inner tube mold 202 and the outer tube mold 100, at which time the reinforcement layer 310 passes through the reinforcement layer channel 230 and is located in the second inner tube extrusion channel 220;

[0071] S4, moving the inner tube mold 200 to the second position, at which time the outer tube mold 100, the inner tube mold 200 and the braiding machine 300 form a finished tube extrusion assembly 400, and as the inner tube extruder 250, the braiding machine 300 and the outer tube extruder 120 discharge materials synchronously, the finished tube extrusion assembly 400 continuously extrude the finished tube;

[0072] S5, the finished pipe is transported forward under the traction of the traction machine 700, and is cooled and shaped by the vacuum shaping spray machine 500 and the spray box 600 in turn;

[0073] S6. After cooling and shaping, the finished pipe is sent to the coiler 800 under the traction of the traction machine 700, and the finished pipe is folded and coiled by the coiler 800.

[0074] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical schemes composed of any combination of the above technical features. The above is a specific implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

[0075] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0076] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A method for producing a braided reinforced flexible composite pipe, which is applied to a production line of a braided reinforced flexible composite pipe, characterized in that: The production line includes: An outer tube die, which is provided with an outer tube extrusion channel; An inner tube mold, which is movably arranged on a worktable, is provided with a first inner tube extrusion channel, and has a first position and a second position. When the inner tube mold is in the first position, the inner tube mold is separated from the outer tube mold. When the inner tube mold is in the second position, the inner tube mold is inserted into the inner cavity of the outer tube mold with a gap between the two to form a reinforcement layer channel and a second inner tube extrusion channel, and the first inner tube extrusion channel and the reinforcement layer channel are respectively connected to the second inner tube extrusion channel; A braiding machine, which is used to braid and convey the reinforcement layer. When the inner tube mold is in the first position, the reinforcement layer is introduced into the inner cavity of the outer tube mold. When the inner tube mold moves to the second position, the reinforcement layer passes through the reinforcement layer channel and is located in the second inner tube extrusion channel. At this time, the outer tube mold, the inner tube mold and the braiding machine form a finished tube extrusion assembly and can continuously extrude the finished tube; The inner tube mold comprises a first inner tube mold and a second inner tube mold, wherein the first inner tube mold is connected to the second inner tube mold and the two are located on the same axis; An inner tube extrusion device comprising: Guide rail platform; an inner tube extruder, which is movably arranged on the guide rail platform, the inner tube extruder is connected to the first inner tube mold, and the extrusion port of the inner tube extruder is communicated with the first inner tube extrusion channel; a driving unit, which is arranged on the inner tube extruder and is used to drive the inner tube extruder to move along the guide rail platform, and as the inner tube extruder moves, the first inner tube mold and the second inner tube mold are driven to move synchronously; It also includes a vacuum shaping spray machine, a spray box, a traction machine and a coiling machine which are sequentially arranged at the subsequent workstations of the finished pipe extrusion assembly, wherein the traction machine tractions the shaped pipe extruded from the finished pipe extrusion assembly, and the shaped pipe enters the coiling machine for folding and coiling after being cooled and shaped by the vacuum shaping spray machine and the spray box; It also includes an outer tube extruder, which is detachably connected to the outer tube die and communicates with the outer tube extrusion channel; The production method comprises: S1, moving the inner tube extruder and driving the inner tube mold to move to a first position, at which time the inner tube mold is separated from the outer tube mold; S2, introducing the reinforcement layer woven by the braiding machine into the inner cavity of the outer tube mold; S3, by moving the inner tube extruder and driving the inner tube die to move to a second position, a reinforcement layer channel is formed between the first inner tube die and the outer tube die, and a second inner tube extrusion channel is formed between the second inner tube die and the outer tube die, at which time the reinforcement layer passes through the reinforcement layer channel and is located in the second inner tube extrusion channel; S4, when the inner tube mold moves to the second position, the outer tube mold, the inner tube mold and the braiding machine form a finished tube extrusion assembly, and as the inner tube extruder, the braiding machine and the outer tube extruder discharge materials synchronously, the finished tube extrusion assembly continuously extrude the finished tube; S5. The finished pipe is transported forward under the traction of the traction machine, and is cooled and shaped by the vacuum shaping spray machine and the spray box in turn; S6. After cooling and shaping, the finished pipe is sent to the coiler under the traction of the traction machine, and the finished pipe is folded and coiled by the coiler.

2. The method for producing a braided reinforced flexible composite pipe according to claim 1, characterized in that: The inner channel of the first inner tube die and the gap between the first inner tube die and the second inner tube die form the first inner tube extrusion channel.

3. The method for producing a braided reinforced flexible composite pipe according to claim 2, characterized in that: When the inner tube mold is located at the second position, the second inner tube extrusion channel is formed between the second inner tube mold and the outer tube mold, and the reinforcement layer channel is formed between the first inner tube mold and the outer tube mold.

4. The method for producing a braided reinforced flexible composite pipe according to claim 1, characterized in that: The width of the reinforcement layer channel is smaller than the width of the second inner tube extrusion channel.

5. The method for producing a braided reinforced flexible composite pipe according to claim 1, characterized in that: The outer tube extrusion channel, the reinforcement layer channel and the second inner tube extrusion channel are respectively an outer layer, a middle layer and an inner layer in positional relationship.

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