Semi-structure in-situ curing pipe production line

Abstract

The invention discloses a semi-structure in-situ curing pipe production line, a semi-structure in-situ curing pipe comprises a braided pipe and a coating layer coated on the peripheral pipe wall of the braided pipe, and the peripheral pipe wall of the braided pipe comprises a first wall, a second wall and two connecting walls respectively connected with the same side ends of the first wall and the second wall. The semi-structure in-situ curing pipe production line comprises an unwinding device and a coating mechanism. And the unwinding device is used for winding the braided tube. The coating mechanism comprises a first coating device, a second coating device and a side coating device, the braided tube sequentially passes through the first coating device, the second coating device and the side coating device in the conveying direction, and the first coating device is used for pressing a molten material into the first wall and then rolling, cooling and forming; the second coating device is used for pressing the molten material into the second wall and then rolling, cooling and forming; and the side coating device is used for respectively extruding the molten material into the two connecting walls and then rolling, cooling and forming. Through the arrangement, the coating material can uniformly cover the periphery of the braided tube.

Description

TECHNICAL FIELD

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

[0002] The structure of the semi-structural in-situ curing pipe is a fiber woven layer plus a polymer material coating. The current production method includes extrusion, flow casting and hot melting. The semi-structural in-situ curing pipe produced by the extrusion method needs to be made according to the diameter of the extrusion mold, and the high cost of the mold leads to high production cost of the in-situ curing pipe. The semi-structural in-situ curing pipe with a thick woven layer produced by the flow casting method often cannot be completely compounded due to the thick woven layer. Therefore, it is necessary to provide a semi-structural in-situ curing pipe production line to solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a semi-structural in-situ curing pipe production line which can uniformly cover the outer periphery of the woven pipe with coating material.

[0004] The present application discloses a semi-structural in-situ curing pipe production line, the semi-structural in-situ curing pipe comprising a woven pipe and a coating layer coated on the outer periphery of the woven pipe, the outer periphery of the woven pipe comprising a first wall, a second wall and two connecting walls respectively connecting the same side ends of the first wall and the second wall, comprising: A winding device is used to wind the woven pipe; A coating mechanism comprising a first coating device, a second coating device and a side coating device, the woven pipe passing through the first coating device, the second coating device and the side coating device in turn along the conveying direction, the first coating device being used to press the molten material into the first wall and then roll and cool to form, the second coating device being used to press the molten material into the second wall and then roll and cool to form, and the side coating device being used to extrude the molten material into the two connecting walls and then roll and cool to form; The first coating device comprises a first material distribution assembly, a first electric furnace assembly and a first forming assembly, which are arranged in turn along the conveying direction of the woven pipe, the first material distribution assembly uniformly distributing the powdered material to the first wall, the first electric furnace assembly heating the material on the first wall into a molten state, and the first forming assembly being in rolling contact with the first wall and being cooled to form; The first electric furnace assembly comprises a first heating member and a first cooling member, the first heating member facing the first wall, and the first cooling member facing the second wall; The first forming assembly comprises a first pair of compression rollers and a first sizing roller, the first pair of compression rollers is arranged below the first sizing roller along an up-down direction, the up-down direction is perpendicular to the conveying direction, and the first pair of compression rollers is used for rolling the molten material into the first wall, and the first sizing roller is used for cooling and sizing the molten material in the first wall.

[0005] Further, the first coating device is arranged on one side of the unwinding device, 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 further comprises a first reversing mechanism, the first reversing mechanism is arranged downstream of the first forming assembly, the first reversing mechanism comprises a third support and a plurality of guide rollers arranged on the top of the third support, the plurality of guide rollers span the first coating device and the unwinding device, and the first reversing mechanism is used for diverting the braided pipe to the second coating device.

[0006] Further, the second coating device comprises a second material distributing assembly, a second electric furnace assembly and a second forming assembly, the second material distributing assembly, the second electric furnace assembly and the second forming assembly are sequentially arranged along the conveying direction of the braided pipe, the second material distributing assembly is the same in structure as the first material distributing assembly, the second electric furnace assembly is the same in structure as the first electric furnace assembly, and the second forming assembly is the same in structure as the first forming assembly.

[0007] Further, the semi-structural in-situ curing pipe production line further comprises a deviation rectifying mechanism, the deviation rectifying mechanism comprises a first deviation rectifying device and a second deviation rectifying device, the first deviation rectifying device is arranged between the unwinding device and the first material distributing assembly, and the second deviation rectifying device is arranged between the output end of the guide roller and the second material distributing assembly.

[0008] Further, the side coating device comprises a reversing assembly, the reversing assembly comprises a first reversing roller and a second reversing roller, and the axes of the first reversing roller and the second reversing roller are arranged in a staggered manner; the braided pipe output by the second forming assembly sequentially passes through the first reversing roller and the second reversing roller, the first wall and the second wall of the braided pipe are arranged in an up-down direction before being conveyed to the reversing assembly, the up-down direction is perpendicular to the conveying direction, and the reversing assembly is used for turning over the braided pipe, so that the two connecting walls are arranged in an up-down manner.

[0009] Further, the side coating device further comprises a third forming assembly, a fourth forming assembly and an extrusion die, the third forming assembly is arranged downstream of the reversing assembly, the fourth forming assembly is arranged between the reversing assembly and the third forming assembly, and two extrusion dies are arranged at the input ends of the third forming assembly and the fourth forming assembly respectively, and the extrusion dies are used to extrude the molten material into the corresponding connecting wall and then pass through the third forming assembly and the fourth forming assembly for shaping.

[0010] Further, the semi-structural in-situ curing pipe production line further comprises a winding device arranged downstream of the side coating device, and the winding device is used to wind the coated woven pipe.

[0011] Compared with the prior art, the semi-structural in-situ curing pipe production line has the following beneficial effects: The semi-structural in-situ curing pipe production line disclosed by the application comprises a first coating device, a second coating device and a side coating device, the first coating device is used to press the molten material into the first wall and then roll and cool to form, the second coating device is used to press the molten material into the second wall and then roll and cool to form, and the side coating device is used to press the molten material into the two connecting walls and then roll and cool to form, so that the coating material uniformly covers the outer periphery of the woven pipe. At the same time, the semi-structural in-situ curing pipe production line can meet the production of semi-structural in-situ curing pipes with different diameters, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a front view of the semi-structural in-situ curing pipe production line of the application; Figure 2 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 the application; Figure 3 is a front view of part of the first reversing mechanism, the second deviation correcting device and the second coating device in the application; Figure 4 is a front view of the side coating device in the application; Figure 5 is a front view of the first forming assembly in the application Figure 6 is a front view of the first reversing mechanism in the application; Figure 7 is a top view of the reversing assembly in the application; Figure 8 is a sectional view of the woven pipe in the first state in the application; Figure 9 is a sectional view of the woven pipe in the second state in the application.

[0013] ELEMENT SYMBOL EXPLANATION 100 - semi-structured in-situ curing pipe production line; 10 - braided pipe; 102 - first wall; 103 - second wall; 104 - connecting wall; 1 - unwinding device; 21 - first coating device; 211 - first material distribution assembly; 2111 - first support; 2112 - first storage box; 2113 - first drive roller; 212 - first electric furnace assembly; 2121 - second support; 2122 - first box body; 213 - first forming assembly; 2131 - first pair of compression rollers; 2132 - first shaping roller; 22 - second coating device; 221 - second material distribution assembly; 2211 - fourth support; 2212 - second storage box; 2213 - second drive roller; 222 - second electric furnace assembly; 2221 - fifth support; 2222 - second box body; 223 - second forming assembly; 2231 - second pair of compression rollers; 2232 - second shaping roller; 23 - side coating device; 231 - reversing assembly; 2311 - first reversing roller; 2312 - second reversing roller; 2313 - sixth support; 232 - third forming assembly; 2321 - third pair of compression rollers; 233 - fourth forming assembly; 2331 - fourth pair of compression rollers; 234 - extrusion die; 31 - first deviation rectifying device; 311 - first base plate; 312 - first fixed support; 313 - first deviation rectifying roller; 32 - second deviation rectifying device; 321 - second base plate; 322 - second fixed support; 323 - second deviation rectifying roller; 4 - unwinding device; 5 - first reversing mechanism; 51 - third support; 52 - guide roller; 53 - guide roller bracket. DETAILED DESCRIPTION

[0014] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. If there are several embodiments, the features of the embodiments can be combined with each other when there is no conflict. When the description refers to the drawings, the same numbers on different drawings represent the same or similar elements unless otherwise specified. The description of the exemplary embodiments described below does not represent all embodiments consistent with the present application; rather, they are merely examples of devices, products, and / or methods consistent with some aspects of the present application as recited in the claims of the present application.

[0015] The terms used in the present application are for the purpose of describing the exemplary embodiments only and are not intended to limit the scope of the present application. As used in the specification and the claims of the present application, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0016] It should be understood that the use of terms such as "first" or "second", etc. in the description and claims of this application does not denote any order, quantity, or importance, but is only used to distinguish the characteristics. Similarly, "one" or "a" and the like do not denote a quantity limitation, but mean the presence of at least one. Unless otherwise indicated, "before", "after", "upper", "lower" and the like appearing in this application are for ease of description only, and are not limited to a particular position or spatial orientation. "Include" or "contain" and the like are open-ended expressions, meaning that the elements appearing before "include" or "contain" cover the elements appearing after "include" or "contain" and their equivalents, which do not exclude the possibility that the elements appearing before "include" or "contain" can also contain other elements. If "several" appears in this application, it means two or more.

[0017] Please refer to Figures 1 to 9 The application discloses a semi-structural in-situ curing pipe production line 100. The semi-structural in-situ curing pipe comprises a woven pipe 10 and a coating layer coated on the peripheral wall of the woven pipe 10. The semi-structural in-situ curing pipe production line 100 comprises an unwinding device 1, a coating mechanism, a deviation rectifying mechanism and a winding device 4. The unwinding device 1 is used to wind the woven pipe 10. When the woven pipe 10 is output by the unwinding device 1, the woven pipe 10 is in a flat state, and the peripheral wall of the woven pipe 10 along the conveying direction D1-D1 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. The coating mechanism of the semi-structural in-situ curing pipe production line 100 respectively coats the first wall 102, the second wall 103 and the two connecting walls 104 of the woven pipe 10, so that the coating layer on the peripheral wall of the pipe wall of the semi-structural in-situ curing pipe can be uniformly coated. Moreover, the semi-structural in-situ curing pipe production line 100 in the application can meet the coating requirements of semi-structural in-situ curing pipes with different diameters and different thicknesses of pipe walls, and can reduce the production cost.

[0018] Please refer to Figures 2 to 4 , Figures 8 to 9 The coating mechanism comprises a first coating device 21, a second coating device 22 and a side coating device 23. The woven pipe 10 passes through the first coating device 21, the second coating device 22 and the side coating device 23 in turn along the conveying direction D1-D1. In the embodiment, the conveying direction D1-D1 is the horizontal direction. The first coating device 21 is used to press the molten material into the first wall 102 and then roll and cool to form, the second coating device 22 is used to press the molten material into the second wall 103 and then roll and cool to form, and the side coating device 23 is used to extrude the molten material into the two connecting walls 104 respectively and then roll and cool to form.

[0019] Please refer to Figure 2 ,Figure 8 The first coating device 21 comprises a first material distributing assembly 211, a first electric furnace assembly 212, and a first forming assembly 213. The first material distributing assembly 211, the first electric furnace assembly 212, and the first forming assembly 213 are sequentially arranged along the conveying direction D1-D1 of the braided tube 10. The first material distributing assembly 211 uniformly distributes the powdered material to 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 forming assembly 213 is in rolling contact with the first wall 102 and is cooled and formed.

[0020] Please refer to Figure 2 , Figure 5 , Figure 8 The first material distributing assembly 211 comprises a first support 2111 and a first storage box 2112 arranged on the top of the first support 2111. The first storage box 2112 is used to store the powdered material, and the side of the first storage box 2112 facing the first support 2111 has a first discharge port. The material is uniformly sprayed from the first discharge port to the top of the first support 2111. The top of the first support 2111 is further provided with at least one first driving roller 2113, and the at least one first driving roller 2113 is arranged in a spaced manner with the first discharge port of the first storage box 2112. The first material distributing assembly 211 further comprises a first motor which drives the first driving roller 2113 to rotate. The at least one first driving roller 2113 is in rolling contact with the braided tube 10. The at least one first driving roller 2113 is arranged in a spaced manner along the width direction D3-D3 which is perpendicular to the conveying direction D1-D1. Preferably, the width direction D3-D3 is the front-rear direction of the device. The first motor drives the at least one first driving 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 sprayed to the first wall 102 of the braided tube 10 through the discharge port, so that the first wall 102 is uniformly covered with the powdered material.

[0021] Please refer to Figure 2The first electric furnace assembly 212 comprises a first heating member and a first cooling member. Specifically, the first electric furnace assembly 212 further comprises a second support 2121 and a first box 2122 arranged on the top of the second support 2121. The first heating member and the first cooling member are arranged in the first box 2122 respectively. The first cooling member is arranged on the top of the second support 2121 and extends along the conveying direction D1-D1. The first heating member is arranged above the first cooling member along the up-down direction D2-D2. The first heating member and the first cooling member are arranged in a spaced manner. The up-down direction D2-D2 is perpendicular to the conveying direction D1-D1. The braided tube 10 is arranged between the first heating member and the first cooling member. The first heating member faces the first wall 102, and the first cooling member faces the second wall 103. The second support 2121 is arranged at the downstream end of the first support 2111 along the conveying direction D1-D1 of the braided tube 10. The height of the second support 2121 is consistent with the height of the first support 2111, so that the conveying of the braided tube 10 is stable, and the production efficiency is improved. When the braided tube 10 enters between the first heating member and the first cooling member along the conveying direction D1-D1, the powdery material on the first wall 102 of the braided tube 10 is heated to a molten state by the first heating member. At the same time, the first cooling member cools 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.

[0022] Please refer to Figure 2 、 Figure 5The first forming device 213 includes a first pair of compression rollers 2131 and a first sizing roller 2132. The first pair of compression rollers 2131 is arranged below the first sizing roller 2132 along the up-down direction D2-D2, which is perpendicular to the conveying direction D1-D1. The first pair of compression rollers 2131 is used to roll the molten material into the first wall 102, and the first sizing roller 2132 is used to cool and size the molten material in the first wall 102. Specifically, the axes of the first pair of compression rollers 2131 and the first sizing roller 2132 are parallel to each other, and the axes of the first pair of compression rollers 2131 and the first sizing roller 2132 are perpendicular to the conveying direction D1-D1 of the braided tube 10. The rollers of the first pair of compression rollers 2131 and the first sizing roller 2132 are hollow, and cooling water is circulated in the rollers of the first pair of compression rollers 2131 and the first sizing roller 2132, so that the first pair of compression rollers 2131 and the first sizing roller 2132 can continuously cool and size the molten material on the first wall 102. In this embodiment, there are two first pair of compression rollers 2131, which are arranged along the up-down direction D2-D2, and the braided tube 10 is in rolling contact with the two first pair of compression rollers 2131. After the molten material on the first wall 102 passes through the two first pair of compression rollers 2131, the material on the first wall 102 can be evenly coated and is not easy to fall off. The first sizing roller 2132 has three rollers, which are arranged along the up-down direction D2-D2 in a staggered manner, and the material on the first wall 102 is in rolling contact with the three first sizing rollers 2132 and is cooled and sized, so that the material can be more evenly and firmly coated on the first wall 102.

[0023] Please refer to Figures 1 to 3 、 Figure 6 The semi-structural in-situ curing tube production line 100 further includes a first reversing mechanism 5 arranged downstream of the first forming assembly 213. The first reversing mechanism 5 includes a third support 51 and a plurality of guide rollers 52 arranged on the top of the third support 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 divert and convey the braided tube 10 to the second coating device 22. Specifically, the first reversing mechanism 5 further includes a guide roller frame 53 arranged along the conveying direction D1-D1, and the plurality of guide rollers 52 are arranged on the guide roller frame 53 in a spaced manner. The input end of the guide roller frame 53 is arranged on the top of the third support 51, and the output end of the guide roller frame 53 spans the first coating device 21 and the unwinding device 1. After passing through the plurality of guide rollers 52, the braided tube 10 output from the first forming assembly 213 is diverted and conveyed to the second coating device 22. At this time, the first wall 102 and the second wall 103 are changed along the up-down direction D2-D2, and the second wall 103 is located above the first wall 102, so that the braided tube 10 enters the second coating device 22 to coat the tube wall of the second wall 103.

[0024] Please refer to Figure 3 The second coating device 22 has the same structure as the first coating device 21. In the 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.

[0025] Please refer to Figure 3 The second coating device 22 includes a second material feeding assembly 221, a second electric furnace assembly 222, and a second forming assembly 223. The second material feeding assembly 221, the second electric furnace assembly 222, and the second forming assembly 223 are arranged in sequence along the conveying direction D1-D1 of the braided tube 10. The second material feeding assembly 221 has the same structure as the first material feeding assembly 211, the second electric furnace assembly 222 has the same structure as the first electric furnace assembly 212, and the second forming assembly 223 has the same structure as the first forming assembly 213. In the embodiment, the second material feeding assembly 221, the second electric furnace assembly 222, and the second forming assembly 223 are arranged in sequence from the unwinding device 1.

[0026] Please refer to Figure 2 The semi-structural in-situ curing tube production line 10 further includes a deviation rectifying mechanism for rectifying side error of the braided tube 10 generated in the conveying process. The deviation rectifying mechanism includes a first deviation rectifying device 31. The first deviation rectifying device 31 is arranged between the unwinding device 1 and the first material feeding assembly 211. The first deviation rectifying device 31 includes a first base plate 311 and a first fixed support 312 arranged on one side of the first base plate 311. The first fixed support 312 is arranged vertically to the first base plate 311 along the up-down direction D2-D2. The first base plate 311 is fixedly connected to the first support 2111 on the other side of the first fixed support 312. The first deviation rectifying device 31 further includes two first deviation rectifying rollers 313. The two first deviation rectifying rollers 313 are respectively arranged at the bottom of the first base plate 311, one of which is arranged close to the first fixed support 312, and the other of which is arranged close to the first support 2111. When the braided tube 10 passes through the first deviation rectifying device 31 along the conveying direction D1-D1 through the unwinding device 1, the braided tube 10 is in rolling contact with the two first deviation rectifying rollers 313, so that the braided tube 10 cannot deviate, thereby improving the production efficiency of the braided tube 10 and reducing the production cost.

[0027] Please refer to Figure 3The second cloth assembly 221 is structurally identical to the first cloth assembly 211. The second cloth assembly 221 comprises a fourth support 2211 and a second storage box 2212 arranged on the top of the fourth support 2211. The second storage box 2212 is used to store powder materials. The second storage box 2212 has a second discharge port on one side of the fourth support 2211, and the materials are uniformly sprayed onto the top of the fourth support 2211 from the second discharge port. The top of the fourth support 2211 is further provided with at least one second driving roller 2213, which is arranged at a distance from the second discharge port. The second cloth assembly 221 further comprises a second motor which drives the second driving roller 2213 to rotate. The at least one second driving roller 2213 is in rolling contact with the woven tube 10, and the at least one second driving roller 2213 is arranged at a distance along the width direction D3-D3. The second motor drives the at least one second driving roller 2213 to rotate, thereby driving the woven tube 10 to move along the conveying direction D1-D1. When the woven tube 10 passes through the second discharge port, the powder materials are sprayed onto the second wall 103 of the woven tube 10 through the discharge port, so that the second wall 103 is uniformly covered with the powder materials.

[0028] Please refer to Figure 3 The deviation correction mechanism further comprises a second deviation correction device 32 which is structurally identical to the first deviation correction device 31. The second deviation correction device 32 is arranged between the output end of the guide roller frame 53 and the second cloth assembly 221. The second deviation correction device 32 comprises a second base plate 321 and a second fixed support 322 which is arranged in the up-down direction D2-D2. The second fixed support 322 is arranged between the unwinding device 1 and the second base plate 321, and one side of the second base plate 321 is arranged vertically on the second fixed support 322. The other side of the second base plate 321 is fixedly connected to the second cloth assembly 221. The second deviation correction device 32 further comprises two second deviation correction rollers 323. The two second deviation correction rollers 323 are arranged at the bottom of the second base plate 321, one of which is arranged close to the second fixed support 322, and the other of which is arranged close to the second cloth assembly 221. When the woven tube 10 passes through the second deviation correction device 32 along the conveying direction D1-D1 from the output end of the guide roller frame 53, the woven tube 10 is in rolling contact with the two second deviation correction rollers 323, which can prevent the woven tube 10 from deviating, thereby improving the production efficiency of the woven tube 10 and reducing the production cost.

[0029] Please refer to Figure 3 , Figure 9The second electric furnace assembly 222 comprises a second heating member and a second cooling member. Specifically, the second electric furnace assembly 222 further comprises a fifth support 2221 and a second box 2222 arranged on the top of the fifth support 2221. The second heating member and the second cooling member are arranged in the second box 2222 respectively. The second cooling member is arranged on the top of the fifth support 2221 and extends along the conveying direction D1-D1 of the braided tube 10. The second heating member is arranged above the second cooling member along the up-down direction D2-D2 and is spaced apart from the second cooling member. The braided tube 10 is arranged between the second heating member and the second cooling member. The second heating member faces the second wall 103, and the second cooling member faces the first wall 102. The fifth support 2221 is arranged at the downstream end of the fourth support 2211 along the conveying direction D1-D1 of the braided tube 10. The height of the fifth support 2221 is consistent with the height of the fourth support 2211, which ensures the stable conveying of the braided tube 10. When the braided tube 10 enters between the second heating member and the second cooling member 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 member, and at the same time, the first wall 102 of the braided tube 10 is cooled by the second cooling member, so that the first wall 102 of the braided tube 10 will not be deformed due to high temperature.

[0030] Please refer to Figure 3 , Figure 9The second forming assembly 223 includes a second pair of pressing rollers 2231 and a second sizing roller 2232. The second pair of pressing rollers 2231 is used to roll press the molten material into the second wall 103, and the second sizing roller 2232 is used to cool and size the molten material in the second wall 103. Specifically, the second pair of pressing rollers 2231 and the second sizing roller 2232 are arranged along the up-down direction D2-D2, and the second sizing roller 2232 is arranged above the second pair of pressing rollers 2231. The axis of the second pair of pressing rollers 2231 is parallel to the axis of the second sizing roller 2232, and the axis of the second pair of pressing rollers 2231 and the axis of the second sizing roller 2232 are perpendicular to the conveying direction D1-D1 of the braided tube 10. The rollers of the second pair of pressing rollers 2231 and the second sizing roller 2232 are hollow, and the inside of the rollers of the second pair of pressing rollers 2231 and the second sizing roller 2232 is supplied with cooling water, so that the second pair of pressing rollers 2231 and the second sizing roller 2232 can continuously cool and size the molten material on the second wall 103. In this embodiment, there are two second pair of pressing rollers 2231, and the two second pair of pressing rollers 2231 are arranged along the up-down direction D2-D2, and 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 passes through the two second pair of pressing rollers 2231, the material on the second wall 103 can be evenly distributed and is not easy to fall off. The second sizing roller 2232 has three rollers, and the three rollers of the second sizing roller 2232 are arranged along the up-down direction D2-D2 in a staggered manner, and the material on the second wall 103 is in rolling contact with the three rollers of the second sizing roller 2232 and is cooled and sized, so that the material can be more evenly and firmly coated on the second wall 103.

[0031] Please refer to Figure 4 , Figures 7 to 9 The side coating device 23 includes a reversing assembly 231, and 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 are 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. The reversing assembly 231 further includes a sixth support 2313. The sixth support 2313 has a rectangular frame structure. The first reversing roller 2311 is arranged at the top of the sixth support 2313 along the diagonal, and the second reversing roller 2312 is arranged at the bottom of the sixth support 2313. The first wall 102 and the second wall 103 of the braided tube 10 are arranged in the up-down direction D2-D2 before being conveyed to the reversing assembly 231, and the reversing assembly 231 is used to turn over 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 downwardly conveys the braided tube 10 to the second reversing roller 2312, so that the two connecting walls 104 are changed from being arranged in front of and behind each other to being arranged above and below each other.

[0032] The side coating device 23 further comprises a third forming assembly 232, a fourth forming assembly 233, and an extrusion die head 234. The third forming assembly 232 is arranged downstream of the reversing assembly 231, and the fourth forming assembly 233 is arranged between the reversing assembly 231 and the third forming assembly 232. Two extrusion die heads 234 are respectively arranged at the input ends of the third forming assembly 232 and the fourth forming assembly 233, and the extrusion die heads 234 are used to extrude the molten material into the corresponding connecting wall 104 and then pass through the third forming assembly 232 and the fourth forming assembly 233 for shaping. Specifically, the third forming assembly 232 comprises two third pairs of rollers 2321 arranged in an upper and lower manner, the fourth forming assembly 233 comprises two fourth pairs of rollers 2331 arranged in an upper and lower manner, and the two connecting walls 104 of the braided tube 10 are in rolling contact with and cooled and shaped by the two third pairs of rollers 2321 and the two fourth pairs of rollers 2331, respectively. Before the braided tube 10 enters the third pair of rollers 2321 from the output end of the second reversing roller 2312, the extrusion die head 234 extrudes the molten material into the corresponding connecting wall 104 on one side, and the third pair of rollers 2321 cools and shapes the molten material in the connecting wall 104 located above. The braided tube 10 after cooling and shaping passes around the third pair of rollers 2321 to the fourth pair of rollers 2331. At this time, the two connecting walls 104 are exchanged in an upper and lower manner, the extrusion die head 234 extrudes the molten material into the connecting wall 104, and the two fourth pairs of rollers 2331 cool and shape the connecting wall 104. At this time, the outer peripheral wall of the braided tube 10 is coated with a coating layer to form a semi-structural in-situ cured tube. In this embodiment, the coating layer material is PE material. In other embodiments, it can be other high polymer materials, which will not be described here.

[0033] Please refer to Figure 1 The semi-structural in-situ cured tube production line 100 further comprises a winding device 4 arranged downstream of the side coating device 23. Specifically, the winding device 4 is arranged downstream of the third forming assembly 232, and the winding device 4 is used to wind the coated braided tube 10.

[0034] In summary, the semi-structural in-situ cured tube production line 100 is provided with the first coating device 21, the second coating device 22, and the 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 to form, the second coating device 22 is used to press the molten material into the second wall 103 and then roll and cool to form, and the side coating device 23 is used to press the molten material into the two connecting walls 104 and then roll and cool to form, so that the coating material uniformly covers the outer periphery of the braided tube 10. At the same time, the semi-structural in-situ cured tube production line 100 of the present application can meet the production of semi-structural in-situ cured tubes of different diameters, and the production cost is reduced.

[0035] The above examples are only used to illustrate the present application and not to limit the technical solutions described in the present application. The understanding of the present specification should be based on the skilled person in the art. For example, the directional description such as "front", "back", "left", "right", "up", "down" and the like. Although the present specification has been described in detail with reference to the above examples, it should be understood by those skilled in the art that the skilled person in the art can still modify or equivalently replace the present application, and all technical solutions and improvements which do not deviate from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A semi-structured in-situ curing tube production line, wherein the semi-structured in-situ curing tube comprises a braided tube (10) and a coating layer applied to the outer peripheral wall of the braided tube (10), the outer peripheral wall of the braided tube (10) comprising 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), characterized in that, include: Unwinding device (1) for winding the braided tube (10); The coating mechanism includes a first coating device (21), a second coating device (22), and a side coating device (23). The braided tube (10) passes sequentially through the first coating device (21), the second coating device (22), and the side coating device (23) along the conveying direction. 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 a shape. 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 a shape. The side coating device (23) extrudes the molten material into the two connecting walls (104) respectively and then rolls and cools it to form a shape. The first coating device (21) includes a first fabric assembly (211), a first electric furnace assembly (212), and a first molding assembly (213). The first fabric assembly (211), the first electric furnace assembly (212), and the first molding assembly (213) are arranged sequentially along the conveying direction of the braided tube (10). The first fabric assembly (211) distributes the powdered material evenly onto the first wall (102). The first electric furnace assembly (212) heats the material on the first wall (102) into a molten state. The first molding assembly (213) rolls and contacts the first wall (102) and cools and shapes it. The first electric furnace assembly (212) includes a first heating element and a first cooling element, the first heating element facing the first wall (102) and the first cooling element facing the second wall (103). The first forming component (213) includes a first pair of pressure rollers (2131) and a first shaping roller (2132). The first pair of pressure rollers (2131) is arranged below the first shaping roller (2132) in a vertical direction, which is perpendicular to the conveying direction. The first pair of pressure rollers (2131) is used to roll 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). The first reversing mechanism (5) is located downstream of the first forming assembly (213). The first reversing mechanism (5) includes a third support (51) and a plurality of guide rollers (52) disposed on the top of the third support (51). The plurality of guide rollers (52) span the first coating device (21) and the unwinding device (1). The second coating device (22) includes a second fabric assembly (221), a second electric furnace assembly (222), and a second forming assembly (223), which are arranged sequentially along the conveying direction of the braided tube (10); The correction mechanism includes a first correction device (31) and a second correction device (32). The first correction device (31) is disposed between the unwinding device (1) and the first fabric assembly (211), and the second correction device (32) is disposed between the output end of the guide roller (52) and the second fabric assembly (221).

2. The semi-structure in-situ curing tube production line as described in claim 1, characterized in that: The first fabric assembly (211) includes a first support (2111) and a first storage box (2112) disposed on the top of the first support (2111); the first storage box (2112) is used to store powdered material, and the first storage box (2112) has a first discharge port on the side facing the first support (2111), and the material is evenly sprinkled from the first discharge port onto the top of the first support (2111); at least one first drive roller (2113) is also disposed on the top of the first support (2111), and at least one first drive roller (2113) is spaced apart from the first discharge port of the first storage box (2112).

3. The semi-structure in-situ curing tube production line as described in claim 2, characterized in that: The first fabric assembly (211) also includes a first motor, which drives the first drive roller (2113) to rotate, and at least one of the first drive rollers (2113) is in rolling contact with the braided tube (10); at least one of the first drive rollers (2113) is arranged at intervals along the width direction D3-D3, and the width direction D3-D3 is perpendicular to the conveying direction D1-D1.

4. The semi-structure in-situ curing tube production line as described in claim 2, characterized in that: The first correction device (31) includes a first substrate (311) and a first fixing bracket (312) disposed on one side of the first substrate (311). The first fixing bracket (312) is arranged along the vertical direction D2-D2, and the first substrate (311) is vertically disposed on the first fixing bracket (312). The other side of the first substrate (311) opposite to the first fixing bracket (312) is fixedly connected to the first bracket (2111).

5. The semi-structure in-situ curing tube production line as described in claim 4, characterized in that: The first correction device (31) further includes two first correction rollers (313), which are respectively disposed at the bottom of the first substrate (311). One of the first correction rollers (313) is disposed near the first fixed bracket (312), and the other of the first correction rollers (313) is disposed near the first bracket (2111).

6. The semi-structure in-situ curing tube production line as described in claim 5, characterized in that: The second correction device (32) includes a second base plate (321) and a second fixing bracket (322). The second fixing bracket (322) is arranged along the vertical direction D2-D2 and is located between the unwinding device (1) and the second base plate (321). One side of the second base plate (321) is vertically arranged on the second fixing bracket (322), and the other side of the second base plate (321) is fixedly connected to the second fabric assembly (221).

7. The semi-structure in-situ curing tube production line as described in claim 6, characterized in that: The second correction device (32) further includes two second correction rollers (323), which are respectively disposed at the bottom of the second substrate (321). One of the second correction rollers (323) is disposed near the second fixed bracket (322), and the other second correction roller (323) is disposed near the second fabric assembly (221).

8. The semi-structure in-situ curing tube production line as described in claim 1, characterized in that: The first electric furnace assembly (212) further includes a second support (2121) and a first housing (2122) disposed on the top of the second support (2121); the first heating element and the first cooling element are respectively disposed in the first housing (2122), the first cooling element is disposed on the top of the second support (2121) and extends along the conveying direction D1-D1; the first heating element is disposed above the first cooling element along the vertical direction D2-D2, the first heating element and the first cooling element are spaced apart, and the vertical direction D2-D2 is perpendicular to the conveying direction D1-D1; the braided tube (10) is disposed between the first heating element and the first cooling element.

9. The semi-structure in-situ curing tube production line as described in claim 1, characterized in that: The first reversing mechanism (5) further includes a guide roller frame (53), which is arranged along the conveying direction D1-D1. A plurality of guide rollers (52) are spaced apart on the guide roller frame (53). The input end of the guide roller frame (53) is located on the top of the third support (51). The output end of the guide roller frame (53) spans the first coating device (21) and the unwinding device (1). The braided tube (10) output from the first forming assembly (213) turns after passing through the plurality of guide rollers (52) and is conveyed to the second coating device (22).

10. The semi-structure in-situ curing tube production line as described in claim 1, characterized in that: The second fabric assembly (221) includes a fourth support (2211) and a second storage box (2212) disposed on the top of the fourth support (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 support (2211), and the material is evenly sprinkled from the second discharge port onto the top of the fourth support (2211). At least one second drive roller (2213) is also disposed on the top of the fourth support (2211). The second drive roller (2213) is spaced apart from the second discharge port; the second fabric assembly (221) also includes a second motor, which drives the second drive roller (2213) to rotate, at least one second drive roller (2213) is in rolling contact with the braided tube (10), at least one second drive roller (2213) is spaced apart along the width direction D3-D3, and the second motor drives at least one second drive roller (2213) to rotate, thereby driving the braided tube (10) to move along the conveying direction D1-D1.

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