Semi-structural in-situ cured pipe production line

Abstract

The present application discloses a semi-structural in-situ curing pipe production line, which includes a braided pipe and a coating layer coated on the outer peripheral wall of the braided pipe. The outer peripheral wall of the braided pipe includes a first wall, a second wall, and two connecting walls respectively connecting the first wall and the second wall at the same side ends. The semi-structural in-situ curing pipe production line includes a reeling device and a coating mechanism. The reeling device is used to wind the braided pipe. The coating mechanism includes a first coating device, a second coating device, and a side coating device. The braided pipe passes through the first coating device, the second coating device, and the side coating device in sequence along the conveying direction. The first coating device is used to press the molten material into the first wall and then roll and cool it into shape. The second coating device is used to press the molten material into the second wall and then roll and cool it into shape. The side coating device squeezes the molten material into the two connecting walls and then rolls and cools it into shape. Such an arrangement can make the coating material evenly cover the outer periphery of the braided pipe.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline repair, and in particular to a semi-structural in-situ cured pipe production line. Background Art

[0002] The structure of a semi-structural in-situ curing dry pipe is a fiber braided layer plus a polymer material coating. The current production methods are divided into extrusion, cast film, and hot melt. The extrusion method for producing semi-structural in-situ curing dry pipes requires the production of an extrusion mold according to the caliber. The high cost of mold production leads to high production costs for in-situ curing dry pipes. When using the cast film method to produce semi-structural in-situ curing dry pipes with thicker braided layers, the coating often cannot be completely laminated due to the thick braided layer. Therefore, it is necessary to provide a semi-structural in-situ curing pipe production line to solve the above problems. Summary of the Invention

[0003] The purpose of the present application is to provide a semi-structural in-situ curing pipe production line, which can make the coating material evenly cover the outer circumference of the braided pipe.

[0004] The present application discloses a semi-structural in-situ curing pipe production line, wherein the semi-structural in-situ curing pipe comprises a braided pipe and a coating layer coated on the outer peripheral wall of the braided pipe, wherein the outer peripheral wall of the braided pipe comprises a first wall, a second wall, and two connecting walls respectively connecting the first wall and the second wall at the same side ends, including:

[0005] an unwinding device for winding the braided tube;

[0006] The coating mechanism includes a first coating device, a second coating device, and a side coating device. The braided tube passes through the first coating device, the second coating device, and the side coating device in sequence along the conveying direction. The first coating device is used to press the molten material into the first wall and then roll and cool it to form. The second coating device is used to press the molten material into the second wall and then roll and cool it to form. The side coating device squeezes the molten material into the two connecting walls respectively and then rolls and cools it to form.

[0007] The first coating device includes a first material distributing assembly, a first electric furnace assembly, and a first forming assembly. The first material distributing assembly, the first electric furnace assembly, and the first forming assembly are sequentially arranged along the conveying direction of the braided tube. The first material distributing assembly evenly distributes the powdered material to the first wall. The first electric furnace assembly heats the material on the first wall into a molten state. The first forming assembly rolls into contact with the first wall and cools to form the material.

[0008] The first electric furnace assembly includes a first heating element and a first cooling element, wherein the first heating element faces the first wall, and the first cooling element faces the second wall;

[0009] The first molding assembly includes a first pair of pressing rollers and a first shaping roller. The first pair of pressing rollers is arranged below the first shaping roller in an up-down direction, and the up-down direction is perpendicular to the conveying direction. The first pair of pressing rollers is used to roll the molten material into the first wall, and the first shaping roller cools and shapes the molten material pressed into the first wall.

[0010] Furthermore, the first coating device is arranged on one side of the unwinding device, and the second coating device is arranged on the other side of the unwinding device relative to the first coating device; the semi-structural in-situ curing pipe production line also includes a first reversing mechanism, which is arranged downstream of the first forming assembly, and the first reversing mechanism includes a third bracket and a plurality of guide rollers arranged on the top of the third bracket, and the plurality of guide rollers span the first coating device and the unwinding device, and the first reversing mechanism is used to turn the braided tube to the second coating device.

[0011] Furthermore, the second coating device includes a second cloth assembly, a second electric furnace assembly and a second molding assembly. The second cloth assembly, the second electric furnace assembly and the second molding assembly are arranged in sequence along the conveying direction of the braided tube. The second cloth assembly has the same structure as the first cloth assembly, the second electric furnace assembly has the same structure as the first electric furnace assembly, and the second molding assembly has the same structure as the first molding assembly.

[0012] Furthermore, the semi-structural in-situ curing pipe production line also includes a correction mechanism, which includes a first correction device and a second correction device. The first correction device is arranged between the unwinding device and the first fabric component, and the second correction device is arranged between the output end of the guide roller and the second fabric component.

[0013] Furthermore, the side coating device includes a reversing assembly, the reversing assembly includes a first reversing roller and a second reversing roller, the axes of the first reversing roller and the second reversing roller are staggered; the braided tube output by the second forming assembly passes through the first reversing roller and the second reversing roller in sequence, and the first wall and the second wall of the braided tube are in the up and down direction before being conveyed to the reversing assembly, and the up and down direction is perpendicular to the conveying direction. The reversing assembly is used to flip the braided tube so that the two connecting walls are transformed into an up and down setting.

[0014] Furthermore, the side coating device also includes a third molding component, a fourth molding component and an extrusion die head. The third molding component is arranged downstream of the reversing component, and the fourth molding component is arranged between the reversing component and the third molding component. The two extrusion dies are respectively arranged at the input ends of the third molding component and the fourth molding component. The extrusion die head is used to extrude the molten material into the corresponding connecting wall and then shape it through the third molding component and the fourth molding component.

[0015] Furthermore, the semi-structural in-situ cured pipe production line also includes a winding device, which is arranged downstream of the side coating device and is used to wind up the coated braided pipe.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] This application discloses a semi-structural in-situ curing pipe production line. The production line comprises a first coating device, a second coating device, and a side coating device. The first coating device is used to press molten material into the first wall and then roll and cool it to form the tube. The second coating device is used to press molten material into the second wall and then roll and cool it to form the tube. The side coating device is used to press molten material into the two connecting walls and then roll and cool it to form the tube. This allows the coating material to evenly cover the outer circumference of the braided tube. Furthermore, the semi-structural in-situ curing pipe production line can produce semi-structural in-situ curing pipes of varying diameters, reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the semi-structural in-situ cured pipe production line of the present application;

[0019] Figure 2 This is a front view of the unwinding device, the first deviation-correcting device, the first coating device, and part of the first reversing mechanism in this application;

[0020] Figure 3 This is a front view of part of the first reversing mechanism, the second deviation correcting device, and the second coating device in this application;

[0021] Figure 4 is a front view of the side coating device in this application;

[0022] Figure 5 This is the main view of the first molding component in this application

[0023] Figure 6 This is a front view of the first reversing mechanism in this application;

[0024] Figure 7 is a top view of the reversing assembly in this application;

[0025] Figure 8 is a cross-sectional view of the braided tube in the present application in a first state;

[0026] Figure 9 2 is a cross-sectional view of the braided tube in the present application in the second state.

[0027] Component Symbol Description

[0028] 100 - Semi-structural in-situ cured pipe production line; 10 - Braided pipe; 102 - First wall; 103 - Second wall; 104 - Connecting wall; 1 - Unwinding device; 21 - First coating device; 211 - First fabric assembly; 2111 - First bracket; 2112 - First storage box; 2113 - First drive roller; 212 - First electric furnace assembly; 2121 - Second bracket; 2122 - First box; 213 - First forming assembly; 2131 - First pressing roller; 2132 - First shaping roller; 22 - Second coating device; 221 - Second fabric assembly; 2211 - Fourth bracket; 2212 - Second storage box; 2213 - Second drive roller; 222 - Second electric furnace assembly; 2221 - Fifth bracket; 2222 - Second box ;223-second molding assembly;2231-second counter-pressure roller;2232-second shaping roller;23-side coating device;231-reversing assembly;2311-first reversing roller;2312-second reversing roller;2313-sixth bracket;232-third molding assembly;2321-third counter-pressure roller;233-fourth molding assembly;2331-fourth counter-pressure roller;234-extrusion die;31-first deviation-correcting device;311-first substrate;312-first fixed bracket;313-first deviation-correcting roller;32-second deviation-correcting device;321-second substrate;322-second fixed bracket;-323 second deviation-correcting roller;4-unwinding device;5-first reversing mechanism;51-third bracket;52-guide roller;53-guide roller frame. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. If there are several specific embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present application; rather, they are merely examples of devices, products and / or methods that are consistent with some aspects of the present application and are described in the claims of the present application.

[0030] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of this application. The singular forms "a", "an", "the" or "the" used in the specification and claims of this application are also intended to include plural forms, unless the context clearly indicates otherwise.

[0031] It should be understood that the words used in the specification and claims of this application, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, "one" or "an" and similar words do not indicate a quantitative limitation, but rather indicate the presence of at least one. Unless otherwise indicated, the words "front", "back", "upper", "lower" and similar words appearing in this application are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprises" are open-ended expressions, meaning that the elements appearing before "include" or "comprises" include the elements appearing after "include" or "comprises" and their equivalents, which does not exclude that the elements appearing before "include" or "comprises" may also include other elements. If "several" appears in this application, it means two or more.

[0032] Please refer to Figures 1 to 9 The present application discloses a semi-structural in-situ curing pipe production line 100. The semi-structural in-situ curing pipe includes a braided pipe 10 and a coating layer coated on the outer peripheral wall of the braided pipe 10. The semi-structural in-situ curing pipe production line 100 includes a unwinding device 1, a coating mechanism, a correction mechanism, and a reeling device 4. The unwinding device 1 is used to wind the braided pipe 10. When the braided pipe 10 is output by the unwinding device 1, the braided pipe 10 is flat, and the outer peripheral wall of the braided pipe 10 along the conveying direction D1-D1 includes a first wall 102, a second wall 103, and two connecting walls 104 respectively connecting the same side ends of the first wall 102 and the second wall 103. The coating mechanism of the semi-structural in-situ curing pipe production line 100 coats the first wall 102, the second wall 103 and the two connecting walls 104 of the braided pipe 10 respectively, so that the coating layer on the outer periphery of the pipe wall of the semi-structural in-situ curing pipe can be coated evenly. Moreover, the semi-structural in-situ curing pipe production line 100 in the present application can meet the coating requirements of semi-structural in-situ curing pipes with different diameters and different wall thicknesses, thereby reducing production costs.

[0033] Please refer to Figures 2 to 4 、 Figures 8 and 9The coating mechanism includes a first coating device 21, a second coating device 22, and a side coating device 23. The braided tube 10 passes through the first coating device 21, the second coating device 22, and the side coating device 23 in sequence along the conveying direction D1-D1. In this embodiment, the conveying direction D1-D1 is a horizontal direction. The first coating device 21 is used to press the molten material into the first wall 102 and then roll and cool it into shape. The second coating device 22 is used to press the molten material into the second wall 103 and then roll and cool it into shape. The side coating device 23 squeezes the molten material into the two connecting walls 104 and then rolls and cools it into shape.

[0034] Please refer to Figure 2 、 Figure 8 The first coating device 21 includes a first material distribution assembly 211, a first electric furnace assembly 212, and a first molding assembly 213. The first material distribution assembly 211, the first electric furnace assembly 212, and the first molding assembly 213 are arranged in sequence along the conveying direction D1-D1 of the braided tube 10. The first material distribution assembly 211 evenly distributes the powdered material onto the first wall 102, the first electric furnace assembly 212 heats the material on the first wall 102 into a molten state, and the first molding assembly 213 rolls into contact with the first wall 102 and cools to form the material.

[0035] Please refer to Figure 2 、 Figure 5 、 Figure 8 The first fabric distribution assembly 211 includes a first bracket 2111 and a first storage box 2112 disposed on top of the first bracket 2111. The first storage box 2112 is used to store powdered material. The first storage box 2112 has a first discharge port on the side facing the first bracket 2111, from which the material is evenly distributed toward the top of the first bracket 2111. At least one first drive roller 2113 is also disposed on the top of the first bracket 2111, spaced apart from the first discharge port of the first storage box 2112. The first fabric distribution assembly 2111 also includes a first motor that drives the first drive roller 2113 to rotate. The at least one first drive roller 2113 is in rolling contact with the braided tube 10. The at least one first drive roller 2113 is spaced apart along the width direction D3-D3, which is perpendicular to the conveying direction D1-D1. Preferably, the width direction D3-D3 is the front-to-back direction of the device. The first motor drives at least one first drive roller 2113 to rotate, thereby driving the braided tube 10 to move along the conveying direction D1-D1. When the braided tube 10 passes through the first discharge port, the powdered material is sprinkled onto the first wall 102 of the braided tube 10 through the discharge port, so that the first wall 102 is evenly covered with the powdered material.

[0036] Please refer to Figure 2The first electric furnace assembly 212 includes a first heating element and a first cooling element. Specifically, the first electric furnace assembly 212 also includes a second bracket 2121 and a first box 2122 arranged on the top of the second bracket 2121. The first heating element and the first cooling element are respectively arranged in the first box 2122, and the first cooling element is arranged on the top of the second bracket 2121 and extends along the conveying direction D1-D1. The first heating element is arranged above the first cooling element along the up-down direction D2-D2, and the first heating element and the first cooling element are arranged at intervals, and the up-down direction D2-D2 is perpendicular to the conveying direction D1-D1. The braided tube 10 is arranged between the first heating element and the first cooling element. The first heating element faces the first wall 102, and the first cooling element faces the second wall 103. The second bracket 2121 is arranged at the downstream end of the first bracket 2111 along the conveying direction D1-D1 of the braided tube 10. The height of the second bracket 2121 is consistent with the height of the first bracket 2111, so that the braided tube 10 is conveyed smoothly and production efficiency is improved. When the braided tube 10 enters between the first heating element and the first cooling element along the conveying direction D1-D1, the powdered material on the first wall 102 of the braided tube 10 is heated into a molten state by the first heating element. At the same time, the first cooling element cools down the second wall 103 of the braided tube 10 so that the second wall 103 of the braided tube 10 will not be deformed due to high temperature.

[0037] Please refer to Figure 2 、 Figure 5The first molding assembly 213 includes a first pair of pressing rollers 2131 and a first shaping roller 2132. The first pair of pressing rollers 2131 is arranged below the first shaping roller 2132 along the up-down direction D2-D2, and the up-down direction D2-D2 is perpendicular to the conveying direction D1-D1. The first pair of pressing rollers 2131 is used to roll the molten material into the first wall 102, and the first shaping roller 2132 cools and shapes the molten material pressed into the first wall 102. Specifically, the axis of the first pair of pressing rollers 2131 and the axis of the first shaping roller 2132 are parallel to each other, the axis of the first pair of pressing rollers 2131 is perpendicular to the conveying direction D1-D1 of the braided tube 10, and the axis of the first shaping roller 2132 is perpendicular to the conveying direction D1-D1 of the braided tube 10. The first pair of pressing rollers 2131 and the first shaping roller 2132 are hollow, and cooling water flows through the rollers, allowing the first pair of pressing rollers 2131 and the first shaping roller 2132 to continuously shape and cool the molten material on the first wall 102. In this embodiment, there are two first pair of pressing rollers 2131, arranged along the vertical direction D2-D2. The braided tube 10 is in rolling contact with the two first pair of pressing rollers 2131. After the molten material on the first wall 102 is rolled by the two first pair of pressing rollers 2131, the material is evenly distributed on the first wall 102 and is not easily detached. There are three first shaping rollers 2132, which are staggered along the up and down direction D2-D2. The material on the first wall 102 rolls in contact with the three first shaping rollers 2132 and is cooled and shaped, so that the material can be coated on the first wall 102 more evenly and firmly.

[0038] Please refer to Figures 1 to 3 、 Figure 6 The semi-structural in-situ cured pipe production line 100 also includes a first reversing mechanism 5, which is disposed downstream of the first forming assembly 213. The first reversing mechanism 5 includes a third bracket 51 and a plurality of guide rollers 52 disposed on top of the third bracket 51. The plurality of guide rollers 52 span the first coating device 21 and the unwinding device 1. The first reversing mechanism 5 is used to redirect and convey the braided pipe 10 to the second coating device 22. Specifically, the first reversing mechanism 5 also includes a guide roller frame 53, which is arranged along the conveying direction D1-D1. The plurality of guide rollers 52 are spaced apart on the guide roller frame 53. The input end of the guide roller frame 53 is disposed on top of the third bracket 51, and the output end of the guide roller frame 53 spans the first coating device 21 and the unwinding device 1. The braided pipe 10 output from the first forming assembly 213 is redirected after passing through the plurality of guide rollers 52 and conveyed to the second coating device 22. At this time, the first wall 102 and the second wall 103 are transformed along the up-down direction D2 - D2 , and the second wall 103 is located above the first wall 102 , so that after the braided tube 10 enters the second coating device 22 , the tube wall of the second wall 103 is coated.

[0039] Please refer to Figure 3 The second coating device 22 has the same structure as the first coating device 21. In this embodiment, the first coating device 21 is arranged on one side of the unwinding device 1, and the second coating device 22 is arranged on the other side of the unwinding device 1 relative to the first coating device 21. The first coating device 21, the unwinding device 1, and the second coating device 22 are distributed in the same horizontal direction.

[0040] Please refer to Figure 3 The second coating device 22 includes a second fabric dispensing assembly 221, a second furnace assembly 222, and a second molding assembly 223. The second fabric dispensing assembly 221, the second furnace assembly 222, and the second molding assembly 223 are sequentially arranged along the conveying direction D1-D1 of the braided tube 10. The second fabric dispensing assembly 221 has the same structure as the first fabric dispensing assembly 211, the second furnace assembly 222 has the same structure as the first furnace assembly 212, and the second molding assembly 223 has the same structure as the first molding assembly 213. In this embodiment, the second fabric dispensing assembly 221, the second furnace assembly 222, and the second molding assembly 223 are sequentially arranged from the unwinding device 1.

[0041] Please refer to Figure 2 The semi-structural in-situ cured pipe production line 100 also includes a deflection correction mechanism for correcting lateral deviations of the braided pipe 10 during transport. The deflection correction mechanism includes a first deflection correction device 31. The first deflection correction device 31 is disposed between the unwinding device 1 and the first fabric assembly 211. The first deflection correction device 31 includes a first base plate 311 and a first fixed bracket 312 disposed on one side of the first base plate 311. The first fixed bracket 312 is disposed perpendicularly to the first fixed bracket 312 along the vertical direction D2-D2. The other side of the first base plate 311, opposite the first fixed bracket 312, is fixedly connected to the first bracket 2111. The first deflection correction device 31 also includes two first deflection correction rollers 313. The two first deflection correction rollers 313 are disposed at the bottom of the first base plate 311, with one first deflection correction roller 313 disposed near the first fixed bracket 312 and the other first deflection correction roller 313 disposed near the first bracket 2111. When the braided tube 10 passes through the unwinding device 1 and the first deviation correcting device 31 along the conveying direction D1-D1, the braided tube 10 rolls in contact with the two first deviation correcting rollers 313, which can prevent the braided tube 10 from deflecting, thereby improving the production efficiency of the braided tube 10 and reducing production costs.

[0042] Please refer to Figure 3The second distribution assembly 221 has the same structure as the first distribution assembly 211. The second distribution assembly 221 includes a fourth bracket 2211 and a second storage box 2212 mounted on top of the fourth bracket 2211. The second storage box 2212 is used to store powdered material. The second storage box 2212 has a second discharge port on the side facing the fourth bracket 2211, from which the material is evenly distributed toward the top of the fourth bracket 2211. At least one second drive roller 2213 is also mounted on top of the fourth bracket 2211, spaced apart from the second discharge port. The second distribution assembly 221 also includes a second motor that drives the second drive roller 2213. The at least one second drive roller 2213 is in rolling contact with the braided tube 10 and is spaced apart along the width direction D3-D3. The second motor drives the at least one second drive roller 2213 to rotate, thereby moving the braided tube 10 along the conveying direction D1-D1. When the braided tube 10 passes through the second discharge port, the powdered material is sprinkled toward the second wall 103 of the braided tube 10 through the discharge port, so that the second wall 103 is evenly covered with the powdered material.

[0043] Please refer to Figure 3 The deflection correction mechanism also includes a second deflection correction device 32, which has the same structure as the first deflection correction device 31. The second deflection correction device 32 is disposed between the output end of the guide roller frame 53 and the second fabric distribution assembly 221. The second deflection correction device 32 includes a second base plate 321 and a second fixed bracket 322. The second fixed bracket 322 is arranged along the vertical direction D2-D2 and disposed between the unwinding device 1 and the second base plate 321. One side of the second base plate 321 is perpendicularly disposed to the second fixed bracket 322. The other side of the second base plate 321 is fixedly connected to the second fabric distribution assembly 221. The second deflection correction device 32 also includes two second deflection correction rollers 323. The two second deflection correction rollers 323 are disposed at the bottom of the second base plate 321, one of which is located near the second fixed bracket 322, and the other is located near the second fabric distribution assembly 221. When the braided tube 10 passes through the second correcting device 32 along the conveying direction D1-D1 from the output end of the guide roller frame 53, the braided tube 10 rolls in contact with the two second correcting rollers 323, which can prevent the braided tube 10 from deviating, thereby improving the production efficiency of the braided tube 10 and reducing production costs.

[0044] Please refer to Figure 3 、 Figure 9, the second electric furnace assembly 222 includes a second heating element and a second cooling element. Specifically, the second electric furnace assembly 222 also includes a fifth bracket 2221 and a second box body 2222 arranged on the top of the fifth bracket 2221. The second heating element and the second cooling element are respectively arranged in the second box body 2222, the second cooling element is arranged on the top of the fifth bracket 2221, and the second cooling element extends along the conveying direction D1-D1 of the braided tube 10. The second heating element is arranged above the second cooling element along the up and down direction D2-D2, and the second heating element and the second cooling element are arranged at intervals. The braided tube 10 is arranged between the second heating element and the second cooling element. The second heating element faces the second wall 103, and the second cooling element faces the first wall 102. The fifth bracket 2221 is arranged at the downstream end of the fourth bracket 2211 along the conveying direction D1-D1 of the braided tube 10, and the height of the fifth bracket 2221 is consistent with the height of the fourth bracket 2211 to ensure smooth conveying of the braided tube 10. When the braided tube 10 enters between the second heating element and the second cooling element along the conveying direction D1-D1, the powdered material on the second wall 103 of the braided tube 10 is heated into a molten state by the second heating element. At the same time, the second cooling element cools down the first wall 102 of the braided tube 10 so that the first wall 102 of the braided tube 10 will not be deformed due to high temperature.

[0045] Please refer to Figure 3 、 Figure 9The second molding assembly 223 includes a second pair of pressing rollers 2231 and a second shaping roller 2232. The second pair of pressing rollers 2231 is used to roll the molten material into the second wall 103, and the second shaping roller 2332 cools and shapes the molten material pressed into the second wall 103. Specifically, the second pair of pressing rollers 2231 and the second shaping roller 2232 are arranged along the vertical direction D2-D2, and the second shaping roller 2232 is arranged above the second pair of pressing rollers 2231. The axis of the second pair of pressing rollers 2231 and the axis of the second shaping roller 2232 are parallel to each other, the axis of the second pair of pressing rollers 2231 is perpendicular to the conveying direction D1-D1 of the braided tube 10, and the axis of the second shaping roller 2232 is perpendicular to the conveying direction D1-D1 of the braided tube 10. The second pair of pressing rollers 2231 and the second shaping rollers 2232 are hollow, and cooling water flows through the rollers, allowing the second pair of pressing rollers 2231 and the second shaping rollers 2232 to continuously shape and cool the molten material on the second wall 103. In this embodiment, two second pair of pressing rollers 2231 are provided, arranged along the vertical direction D2-D2. The braided tube 10 is in rolling contact with the two second pair of pressing rollers 2231. After the molten material on the second wall 103 is rolled by the two second pair of pressing rollers 2231, the material is evenly distributed on the second wall 103 and is not easily detached. There are three second shaping rollers 2232, which are staggered along the up and down direction D2-D2. The material on the second wall 103 rolls in contact with the three second shaping rollers 2232 and is cooled and shaped, so that the material can be coated on the second wall 103 more evenly and firmly.

[0046] Please refer to Figure 4 、 Figures 7 to 9 The side coating device 23 includes a reversing assembly 231, which includes a first reversing roller 2311 and a second reversing roller 2312. The axes of the first reversing roller 2311 and the second reversing roller 2312 are staggered. The braided tube 10 output by the second forming assembly 223 passes through the first reversing roller 2311 and the second reversing roller 2312 in sequence. The reversing assembly 231 also includes a sixth bracket 2313. The sixth bracket 2313 has a rectangular frame structure. The first reversing roller 2311 is arranged at the top of the sixth bracket 2313 and is arranged along the diagonal line, and the second reversing roller 2312 is arranged at the bottom of the sixth bracket 2313. Before the braided tube 10 is conveyed to the reversing assembly 231, the first wall 102 and the second wall 103 are in the vertical direction D2-D2. The reversing assembly 231 is used to flip the braided tube 10. Specifically, when the braided tube 10 passes through the first reversing roller 2311 , the first reversing roller 2311 twists the braided tube 10 by 45° and then vertically transports it downward to the second reversing roller 2312 , so that the front-to-back arrangement of the two connecting walls 104 is transformed into an up-and-down arrangement.

[0047] The side coating device 23 also includes a third molding component 232, a fourth molding component 233 and an extrusion die 234. The third molding component 232 is arranged downstream of the reversing component 231, and the fourth molding component 233 is arranged between the reversing component 231 and the third molding component 232. Two extrusion dies 234 are respectively arranged at the input ends of the third molding component 232 and the fourth molding component 233. The extrusion die 234 is used to extrude the molten material into the corresponding connecting wall 104 and then shape it through the third molding component 232 and the fourth molding component 233. Specifically, the third molding component 232 includes two third pairs of pressure rollers 2321 arranged up and down, and the fourth molding component 233 includes two fourth pairs of pressure rollers 2331 arranged up and down. The two connecting walls 104 of the braided tube 10 are respectively in rolling contact with the two third pairs of pressure rollers 2321 and the two fourth pairs of pressure rollers 2331 and cooled and shaped. Before the braided tube 10 enters the third pair of pressure rollers 2321 from the output end of the second reversing roller 2312, the extrusion die 234 squeezes the molten material into the corresponding side connecting wall 104, and the third pair of pressure rollers 2321 cools and shapes the molten material in the connecting wall 104 located above. After cooling and shaping, the braided tube 10 is output to the fourth pair of pressure rollers 2331 around the third pair of pressure rollers 2321. At this time, the two connecting walls 104 are exchanged up and down, and the extrusion die 234 squeezes the molten material into the connecting wall 104, and the two fourth pairs of pressure rollers 2331 cool and shape the connecting wall 104. At this point, the outer peripheral wall of the braided tube 10 is coated with a coating layer to make a semi-structural in-situ cured tube. In this embodiment, the coating layer material is PE material. In other embodiments, it can be other polymer materials, which will not be repeated here.

[0048] Please refer to Figure 1 The semi-structural in-situ cured pipe production line 100 further includes a winding device 4, which is disposed downstream of the side coating device 23. Specifically, the winding device 4 is disposed downstream of the third molding assembly 232, and the winding device 4 is used to wind the coated braided pipe 10.

[0049] In summary, the semi-structural in-situ curing pipe production line 100 is provided with a first coating device 21, a second coating device 22, and a side coating device 23. The first coating device 21 is used to press the molten material into the first wall 102 and then roll and cool it into shape. The second coating device 22 is used to press the molten material into the second wall 103 and then roll and cool it into shape. The side coating device 23 is used to press the molten material into the two connecting walls 104 and then roll and cool it into shape, so that the coating material evenly covers the outer circumference of the braided pipe 10. At the same time, the semi-structural in-situ curing pipe production line 100 of the present application can meet the production needs of semi-structural in-situ curing pipes of different calibers, reducing production costs.

[0050] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present application. The understanding of this specification should be based on technical personnel in the relevant technical field. For example, the description of directions such as "front", "back", "left", "right", "up", and "down" has been described in detail in this specification with reference to the above embodiments. However, ordinary technical personnel in this field should understand that technical personnel in the relevant technical field can still modify or replace the present application with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered by the scope of the claims of the present application.

Claims

1. A semi-structural in-situ curing pipe production line, wherein the semi-structural in-situ curing pipe comprises a braided pipe (10) and a coating layer coated on the outer peripheral wall of the braided pipe (10), wherein the outer peripheral wall of the braided pipe (10) comprises a first wall (102), a second wall (103), and two connecting walls (104) respectively connecting the same side ends of the first wall (102) and the second wall (103), wherein: include: An unwinding device (1) for winding the braided tube (10); The coating mechanism comprises a first coating device (21), a second coating device (22) and a side coating device (23), wherein the braided tube (10) passes through the first coating device (21), the second coating device (22) and the side coating device (23) in sequence along the conveying direction, wherein the first coating device (21) is used to press the molten material into the first wall (102) and then roll and cool it to form, the second coating device (22) is used to press the molten material into the second wall (103) and then roll and cool it to form, and the side coating device (23) squeezes the molten material into the two connecting walls (104) respectively and then rolls and cools it to form; The first coating device (21) comprises a first material distributing component (211), a first electric furnace component (212) and a first molding component (213), wherein the first material distributing component (211), the first electric furnace component (212) and the first molding component (213) are sequentially arranged along the conveying direction of the braided tube (10), the first material distributing component (211) evenly distributes the powdered material to the first wall (102), the first electric furnace component (212) heats the material on the first wall (102) into a molten state, and the first molding component (213) rolls into contact with the first wall (102) and cools and forms the material; The first electric furnace assembly (212) comprises a first heating element and a first cooling element, wherein the first heating element faces the first wall (102) and the first cooling element faces the second wall (103); The first molding component (213) includes a first pair of pressing rollers (2131) and a first shaping roller (2132), wherein the first pair of pressing rollers (2131) is arranged below the first shaping roller (2132) in an up-down direction, wherein the up-down direction is perpendicular to the conveying direction, and the first pair of pressing rollers (2131) is used to roll the molten material into the first wall (102), and the first shaping roller (2132) cools and shapes the molten material pressed into the first wall (102).

2. The semi-structural in-situ cured pipe production line according to claim 1, characterized in that: The first coating device (21) is arranged on one side of the unwinding device (1), and the second coating device (22) is arranged on the other side of the unwinding device (1) relative to the first coating device (21); the semi-structural in-situ curing pipe production line also includes a first reversing mechanism (5), the first reversing mechanism (5) is arranged downstream of the first forming component (213), the first reversing mechanism (5) includes a third bracket (51) and a plurality of guide rollers (52) arranged on the top of the third bracket (51), the plurality of guide rollers (52) span the first coating device (21) and the unwinding device (1), and the first reversing mechanism (5) is used to turn the braided tube (10) to the second coating device (22).

3. The semi-structural in-situ cured pipe production line according to claim 2, characterized in that: The second coating device (22) includes a second cloth assembly (221), a second electric furnace assembly (222) and a second molding assembly (223). The second cloth assembly (221), the second electric furnace assembly (222) and the second molding assembly (223) are arranged in sequence along the conveying direction of the braided tube (10). The second cloth assembly (221) has the same structure as the first cloth assembly (211), the second electric furnace assembly (222) has the same structure as the first electric furnace assembly (212), and the second molding assembly (223) has the same structure as the first molding assembly (213).

4. The semi-structural in-situ cured pipe production line according to claim 3, characterized in that: The semi-structural in-situ cured pipe production line further includes a deviation correction mechanism, which includes a first deviation correction device (31) and a second deviation correction device (32), wherein the first deviation correction device (31) is arranged between the unwinding device (1) and the first fabric assembly (211), and the second deviation correction device (32) is arranged between the output end of the guide roller (52) and the second fabric assembly (221).

5. The semi-structural in-situ cured pipe production line according to claim 4, characterized in that: The side coating device (23) includes a reversing assembly (231), the reversing assembly (231) includes a first reversing roller (2311) and a second reversing roller (2312), the axes of the first reversing roller (2311) and the second reversing roller (2312) being arranged in a staggered manner; the braided tube (10) output by the second forming assembly (223) passes through the first reversing roller (2311) and the second reversing roller (2312) in sequence, and the first wall (102) and the second wall (103) of the braided tube (10) are in an up-down direction before being conveyed to the reversing assembly (231), and the up-down direction is perpendicular to the conveying direction, and the reversing assembly (231) is used to flip the braided tube (10) so that the two connecting walls (104) are transformed into an up-down arrangement.

6. The semi-structural in-situ cured pipe production line according to claim 5, characterized in that: The side coating device (23) further includes a third molding component (232), a fourth molding component (233) and an extrusion die (234), wherein the third molding component (232) is arranged downstream of the reversing component (231), and the fourth molding component (233) is arranged between the reversing component (231) and the third molding component (232). The two extrusion dies (234) are respectively arranged at the input ends of the third molding component (232) and the fourth molding component (233), and the extrusion die (234) is used to extrude the molten material into the corresponding connecting wall (104) and then shape it through the third molding component (232) and the fourth molding component (233).

7. The semi-structural in-situ cured pipe production line according to claim 6, characterized in that: The semi-structural in-situ cured pipe production line further comprises a winding device (4), which is arranged downstream of the side coating device (23), and the winding device (4) is used to wind the coated braided pipe (10).

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