Winding structure wall reinforced solid wall pipe, machining method and machining production line of winding structure wall reinforced solid wall pipe

Abstract

The invention discloses a winding structure wall reinforced solid wall pipe, a machining process and a machining production line thereof. The pipe comprises a solid wall inner wall pipe formed through extrusion, bell and spigot pipe fittings arranged at the two ends of the inner wall pipe and fixedly connected with the two ends of the inner wall pipe, and a composite rib pipe wound on the surface of the inner wall pipe and formed by annularly wrapping a corrugated pipe with a hot melt adhesive material. The inner wall pipe of the pipe is a seamless solid-wall pipe formed by extrusion, so that the stability and the structural strength of the pipe are greatly enhanced; the spiral welding seam quality risks, such as insufficient welding and sealing-off, possibly caused by the fact that a conventional winding technology is adopted for a traditional Krah pipe are avoided, and the quality problems that the pipe wall of the inner wall pipe is pressed thin, cracks, uneven in wall thickness and the like possibly caused by ribbed pipe under-pressure winding are solved. The structural strength and the welding quality between the composite rib pipe and the inner wall pipe are improved, the hot melting plastic layer can also serve as a protective layer of the pipe, and the compression resistance and impact resistance of the pipe are correspondingly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic pipe processing, in particular to a winding structure wall reinforced solid wall pipe with good processing quality, high efficiency and low cost, a processing technology and a processing production line thereof. BACKGROUND

[0002] In urban drainage engineering, plastic pipe is used more and more. In order to improve the performance of resisting external pressure and impact, different forms of reinforcing ribs are arranged on the outer periphery of the plastic pipe. There are two structures, one is directly extruded, such as double-wall corrugated pipe or axial hollow wall pipe, and the other is spiral wound, such as polyethylene winding structure wall pipe. The polyethylene winding structure wall pipe is a special structure wall pipe with high anti-external pressure capacity and structural strength, which is a hot process winding pipe with polyethylene single-wall corrugated pipe as an auxiliary support structure and an outer wall wound rib pipe. However, during the production of this pipe, a gas is repeatedly heated to shape the mold, the gas consumption is large, the cost is high, and there are many safety risks and uncertain factors. The process parameters are greatly affected by temperature and humidity, and the operator completely relies on experience to operate, so the product quality control is difficult. Moreover, due to the repeated heating and cooling of the shaping mold, deformation is inevitable, the size changes greatly, the product thickness control is unstable, the raw material consumption is large, the cost is high, and the product has defects such as weld opening, virtual welding and low welding strength. In order to overcome the existing problems, the production plant can only increase the inner wall thickness to improve the structural strength of the pipe and reduce or avoid the production of defective products. Thus, the product cost is greatly increased, and the production efficiency is also reduced.

[0003] In the traditional hot winding structure pipe process production, the hot plastic at the welding joint between the hot rib pipe and the inner wall is thinned under the pressure of the corrugated pipe rib pipe, which leads to fracture or defects such as cracking and virtual welding in the spiral weld, which also leads to the decline of the pipe quality. SUMMARY

[0004] The present application mainly solves the above-mentioned technical problems; a winding structure wall reinforced solid wall pipe with good processing quality, high efficiency and low cost, a processing technology and a processing production line thereof are provided.

[0005] In order to solve the above-mentioned technical problems, the present application mainly adopts the following technical solutions: This invention discloses a spiral-wound reinforced solid-wall pipe, comprising an inner wall tube, socket fittings and spigot fittings respectively located at and fixed to both ends of the inner wall tube, and an outer ribbed tube wound around the surface of the inner wall tube. The inner wall tube is an extruded seamless solid-wall tube, and the ribbed tube is a composite ribbed tube formed by annularly coating a corrugated tube with hot melt adhesive. The composite ribbed tube forms the outer wall reinforcement structure of the pipe. A hot melt adhesive tape connecting layer is wound around the connection between the end face of the inner wall tube and the inner end face of the socket / spigot fitting. The use of an extruded seamless solid-wall tube for the inner wall tube greatly enhances the stability and structural strength of the pipe, avoiding the quality risks of spiral welds such as incomplete welding and weld failure that may occur with conventional spiral winding processes for traditional corrugated pipes, as well as the quality problems such as thinning, cracking, leakage, and uneven wall thickness of the inner wall tube that may occur with pressure winding of the ribbed tube. This effectively improves the safety and reliability of the pipe.

[0006] Preferably, the inner wall tube surface is wrapped with a hot melt plastic layer with a thickness of 0.2 to 2 mm. Laying a hot melt plastic layer on the inner wall tube surface facilitates a more stable and reliable fusion between the inner wall tube and the composite rib tube, which is equivalent to adding a protective layer to the inner wall tube surface, thereby improving the structural strength and pressure and wear resistance of the tube.

[0007] Preferably, the inner wall tube surface is provided with indentations, the depth of which is 0.1 to 1 mm. Multiple indentations are processed on the outer surface of the inner wall tube to facilitate the molten rubber material to melt into the outer surface of the inner wall tube, thereby improving the connection strength between the inner wall tube and the hot melt plastic layer, and making the two bond more tightly and reliably.

[0008] A processing method for solid-wall pipes reinforced with spiral wound structure includes the following steps: S1, prefabricated solid-wall seamless inner wall pipe, prefabricated socket pipe fittings and spigot pipe fittings; S2, Install the inner wall pipe onto the steel mold pipe, and insert the socket fittings and spigot fittings onto the steel mold pipe respectively and position them at both ends of the inner wall pipe; S3, Place the steel mold tube, which is fitted with the inner wall tube, socket fitting, and spigot fitting, onto the support roller and let it roll along with the support roller. The cylinder rotates; S4. Wrap hot melt adhesive tape around the connection between the inner end of the pipe and the inner end of the socket / spipe fitting and heat weld it to the fitting. S5, roughen the surface of the inner wall tube to form multiple indentations on the surface of the inner wall tube; S6, the surface of the inner wall tube after roughening is heated with hot air to form a molten structure on the surface of the inner wall tube, wherein the hot air temperature is 120-150℃; S7, molten rubber material is wrapped and extruded on the inner wall tube surface to form a hot melt plastic layer on the inner wall tube surface; S8, rolling and flattening the hot melt plastic layer to make the molten plastic material extrude into the concave marks on the inner wall pipe surface, so that the hot melt plastic layer is better fused with the inner wall pipe surface; S9, winding the composite rib pipe on the hot melt plastic layer of the inner wall pipe to form a spiral rib pipe reinforcing structure layer of the outer wall of the pipe; S10, remove the steel mold pipe, cool and demold the formed pipe on the steel mold pipe, complete the processing and production of the winding structure wall reinforced solid wall pipe.

[0009] As preferred, the solid wall seamless inner wall pipe in step S1 is an extrusion formed seamless solid wall pipe, and the socket pipe fitting / insert pipe fitting is a socket pipe fitting / insert pipe fitting with a heating ring. The inner wall pipe adopts a seamless solid wall structure, which increases the structural strength of the inner wall pipe, facilitates the extrusion impact on the inner wall pipe during subsequent winding forming of the composite rib pipe, and avoids pipe wall rupture or spiral weld cracking, virtual welding and other defects caused by the winding forming of the inner wall pipe due to the thinning of the pipe wall under pressure, thereby improving the structural strength and pressure and wear resistance of the pipe.

[0010] As preferred, the roughening treatment in step S4 adopts a milling method to process spiral grooves on the surface of the inner wall pipe, and the groove depth is 0.1-1mm.

[0011] As preferred, the roughening treatment further includes surface cleaning treatment, and the surface cleaning treatment is air blowing dust removal. The inner wall pipe surface after roughening treatment is cleaned by air blowing to remove the milling debris, thereby improving the connection quality between the hot melt plastic layer and the inner wall pipe surface.

[0012] A winding structure wall reinforced solid wall pipe processing production line, comprising: an inner wall pipe forming device for extrusion forming of the inner wall pipe; a socket / insert pipe fitting forming device for forming of the socket pipe fitting and the insert pipe fitting; a pipe supporting device for positioning and supporting of the pipe, comprising a track, a supporting frame placed on the track and moving along the track, a supporting roller and a roller motor placed on the supporting frame, a steel mold pipe placed on the supporting roller and rotating with the supporting roller, and a hoisting equipment, wherein the inner wall pipe, the socket pipe fitting and the insert pipe fitting are respectively sleeved on the steel mold pipe and rotate with the steel mold pipe; a main machine comprising a machine frame and a rubber belt extrusion device, a rubber pad forming device, a composite rib pipe extrusion device, an inner wall pipe surface treatment device and an inner wall pipe surface heating device placed on the machine frame; wherein the rubber belt extrusion device is used to extrude hot melt rubber belt and wind and cover the splicing area between the end of the socket / insert pipe fitting and the end of the inner wall pipe; ​​The glue pad forming device comprises a plastic extrusion mechanism and a rolling mechanism, the plastic extrusion mechanism is used for extruding and winding hot melt plastic on the surface of the inner wall pipe, and the rolling mechanism is used for flattening and rolling the extruded hot melt plastic to form a flat and uniform hot melt plastic layer. The composite rib pipe extrusion device is used for extruding and winding a composite rib pipe on the hot melt plastic layer on the surface of the inner wall pipe to form an outer wall reinforcing structure of the pipe. The inner wall pipe surface treatment device is used for roughening treatment of the surface of the inner wall pipe. The inner wall pipe surface heating device is used for heating treatment of the surface of the inner wall pipe. The pipe cooling and demolding device is used for cooling and demolding the formed pipe from the steel mold pipe. The controller is used for controlling the operation of the devices, and the controller comprises a man-machine interactive interface.

[0013] As preferred, the inner wall pipe surface treatment device comprises a milling cutter and a milling cutter motor, the milling cutter corresponds to the surface of the inner wall pipe and mills multiple grooves on the surface of the inner wall pipe by the depth driving of the milling cutter motor, the inner wall pipe surface heating device comprises a hot air blower, the hot air blower performs hot air heating on the surface of the inner wall pipe, performs roughening treatment and heating on the surface of the inner wall pipe, the extrusion device extrudes molten glue and spirally winds and covers the surface of the inner wall pipe, and the molten glue layer formed by rolling is fused and welded with the surface of the inner wall pipe, which is convenient for subsequent winding and welding of the composite rib pipe on the hot melt plastic layer.

[0014] As preferred, the inner wall pipe surface treatment device further comprises a cold air blower for cleaning the surface of the inner wall pipe, the air outlet of the cold air blower corresponds to the roughened surface of the inner wall pipe and blows cold air, air flow blowing is performed on the surface of the inner wall pipe, dust generated in the milling process can be removed, and the cleanliness of the surface of the inner wall pipe is ensured.

[0015] The inner layer structure of the pipe adopts a seamless solid wall pipe formed by extrusion, which greatly enhances the stability and structural strength of the pipe, avoids the quality risks of the spiral welds such as virtual welding and welding caused by the conventional winding process of the traditional Krah pipe, and avoids the quality problems of the inner wall pipe wall caused by the rib pipe winding under pressure, such as thinning, cracking and uneven wall thickness, and a hot melt plastic layer is additionally arranged on the surface of the inner wall pipe, which improves the connection strength and welding quality between the composite rib pipe and the inner wall pipe, the hot melt plastic layer can also be used as a protective layer of the pipe, and the pressure resistance and impact resistance of the pipe are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the winding structure wall reinforced solid wall pipe of the present application.

[0017] Figure 2 is Figure 1A cross-sectional view of the structure.

[0018] Figure 3 is Figure 2 An enlarged view of A in the structure.

[0019] Figure 4 is a schematic diagram of a pipe processing production line of the present application.

[0020] Fig. 10. pipe, 101. inner wall pipe, 102. socket pipe fitting, 103. spigot pipe fitting, 104. composite rib pipe, 105. hot melt adhesive tape connecting layer, 106. hot melt plastic layer, 107. indentation, 20. pipe support device, 201. track, 202. support frame, 203. support roller, 204. steel mold pipe, 30. rack, 40. adhesive tape extrusion device, 50. rubber pad forming device, 501. plastic extrusion mechanism, 502. rolling mechanism, 60. composite rib pipe extrusion device, 70. inner wall pipe surface treatment device, 701. milling cutter, 702. cold air blower, 80. inner wall pipe surface heating device. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be further specifically described below by examples in conjunction with the drawings.

[0022] Example: A winding structure wall reinforced solid wall pipe of the present embodiment, as shown in Figure 1 , Figure 2 and Figure 3 , the pipe 10 includes an inner layer inner wall pipe 101, a socket pipe fitting 102 and a spigot pipe fitting 103 respectively arranged at both ends of the inner wall pipe and fixedly connected with both ends of the inner wall pipe, and an outer layer rib pipe 104 wound on the surface of the inner wall pipe. The above-mentioned inner wall pipe is a seamless solid wall pipe formed by extrusion molding, and the above-mentioned rib pipe is a composite rib pipe formed by annularly wrapping a hot melt adhesive material on a corrugated pipe, and the composite rib pipe is spirally wound to form an outer wall reinforcing structure of the pipe. A plurality of indentations 107 are processed on the surface of the inner wall pipe to form a roughened structure of the pipe wall, and the depth of the indentations is 0.2 mm. A layer of hot melt plastic layer 106 is wound on the surface of the roughened inner wall pipe. The thickness of the hot melt plastic layer is 1 mm. The inner wall pipe adopts a seamless solid wall pipe formed by extrusion molding, which greatly enhances the stability and structural strength of the pipe. The quality risks of the spiral weld such as virtual welding and separation that may be caused by the conventional winding process of the traditional Krah pipe are avoided, and the quality problems such as thinning, cracking and uneven wall thickness of the inner wall pipe that may be caused by the rib pipe under pressure winding are also avoided. The hot melt plastic layer cooperates with the roughened structure on the surface of the inner wall pipe to form a tight and firm fusion welding structure between the composite rib pipe and the surface of the inner wall pipe, which improves the structural strength and the pressure resistance and impact resistance of the pipe. The hot melt plastic layer can also serve as a protective layer of the pipe, which accordingly improves the pressure resistance and impact resistance of the pipe.

[0023] Based on the above-mentioned winding structure wall reinforced solid wall pipe processing technology, the steps are as follows: S1, prefabricated solid-wall seamless inner wall pipe, prefabricated socket pipe fittings and spigot pipe fittings; S2, Install the inner wall pipe onto the steel mold pipe, and insert the socket fittings and spigot fittings onto the steel mold pipe respectively and position them at both ends of the inner wall pipe; S3, Place the steel mold tube, which is fitted with the inner wall tube, socket fitting, and spigot fitting, onto the support roller and let it roll along with the support roller. The cylinder rotates; S4. Wrap hot melt adhesive tape around the connection between the inner end of the pipe and the inner end of the socket / spipe fitting and heat weld it to the fitting. S5, roughen the surface of the inner wall tube to form multiple indentations on the surface of the inner wall tube; S6, The surface of the inner wall tube after roughening is heated with hot air to form a molten structure on the surface of the inner wall tube, and the hot air temperature is 150°C. S7, molten rubber material is wrapped and extruded on the inner wall tube surface to form a hot melt plastic layer on the inner wall tube surface; S8, the hot-melt plastic layer is rolled flat, so that the molten rubber is squeezed into the grooves on the inner wall of the tube, allowing the hot... The fusion strength between the molten adhesive pad and the inner wall surface of the tube is better; S9, the composite ribbed tube is wound and wrapped around the hot-melt plastic layer of the inner wall tube to form a spiral ribbed tube reinforcement on the outer wall of the tube. Strong structural layer; S10, Remove the steel mold tube, cool and demold the formed tube on the steel mold tube, completing the winding structure wall reinforcement. Processing and manufacturing of wall-mounted pipes.

[0024] Production lines based on the above-mentioned spiral wound reinforced solid wall pipe processing technology, such as Figure 4 As shown, it includes: An inner wall tube forming device is used for extruding inner wall tubes, which are seamless solid wall tubes formed by extrusion. A socket / spipe fitting forming device is used for forming socket and spigot fittings, both of which are fittings with heating rings; Pipe support device 20, used for positioning and supporting pipes, includes a track 201, a support frame 202 placed on the track and moving along the track, a support roller 203 placed on the support frame and a roller motor, a steel mold pipe 204 placed on the support roller and rotating with the support roller, and hoisting equipment for hoisting the steel mold pipe and pipes. The inner wall pipe, socket fittings and spigot fittings are respectively sleeved on the steel mold pipe and rotate with the steel mold pipe. The main unit includes a frame 30 and a tape extrusion device 40, a pad forming device 50, a composite rib tube extrusion device 60, an inner wall tube surface treatment device 70, and an inner wall tube surface heating device 80 placed on the frame. A tape extruding device is used to extrude hot-melt tape and wrap the splicing area between the end of the socket / insert pipe and the end of the inner wall pipe. A rubber mat forming device is used to extrude and form the hot-melt plastic layer of the intermediate layer, which includes a plastic extruding mechanism 501 for extruding hot-melt plastic and wrapping the surface of the inner wall pipe, and a rolling mechanism 502 for rolling the extruded hot-melt plastic to form a flat and uniform hot-melt plastic layer. A composite rib pipe extruding device is used to extrude the composite rib pipe and wrap it on the hot-melt plastic layer on the surface of the inner wall pipe. An inner wall pipe surface processing device is used to roughen the surface of the inner wall pipe, which includes a milling cutter 701, a milling cutter motor, and a cold air blower 702. The milling cutter corresponds to the surface of the inner wall pipe and is driven by the milling cutter motor to mill multiple grooves on the surface of the inner wall pipe. The air outlet of the cold air blower corresponds to the roughened surface of the inner wall pipe and blows and cleans it. An inner wall pipe surface heating device is used to heat the surface of the inner wall pipe, which includes a hot air blower. The hot air blower heats the roughened and cleaned surface of the inner wall pipe, which facilitates the subsequent wrapping and forming of the composite rib pipe. A pipe cooling and demolding device is used to cool the formed pipe and demold it from the steel mold pipe. A controller is used to control the operation of the above devices, which includes a human-computer interaction interface.

[0025] In use, the operator first sets the extrusion-molded seamless solid-wall pipe on the steel mold pipe, then inserts the socket pipe fitting and the spigot pipe fitting on the steel mold pipe and positions them at the two ends of the inner-wall pipe, places the steel mold pipe on the supporting roller through hoisting equipment and rotates the supporting roller, then adjusts the position of the milling cutter, the cold air fan air port, the hot air fan air port and the composite rib pipe extrusion device die, the adhesive tape extrusion device die and the plastic extrusion device die through the control of the controller, next, controls the supporting frame to move on the track, aligns the die of the adhesive tape extrusion device with the connecting area of the end of the inner-wall pipe and the end of the socket pipe fitting, extrudes and winds the hot-melt adhesive tape on the above-mentioned splicing area, completes the lap hot-melt welding of the socket pipe fitting and the inner-wall pipe, next, the supporting frame continues to move along the track, at this time, the milling cutter motor drives the milling cutter to deepen, performs the roughening treatment on the surface of the inner-wall pipe, continuously processes multiple grooves on the surface of the inner-wall pipe, the groove depth is 0.2mm, at the same time, the cold air fan is started to blow and clean the milling processing part, removes the milling chips, continues to start the hot air fan to perform the heating treatment on the surface of the above-mentioned roughened inner-wall pipe, the hot air temperature is controlled at 150 DEG C, so that the surface of the inner-wall pipe generates a molten structure, at the same time, the die of the plastic extrusion device is aligned with the surface of the above-mentioned hot air heated inner-wall pipe, outputs the hot-melt plastic material and winds it on the surface of the inner-wall pipe, at the same time, the roller of the roller pressing device extrudes and flattens the hot-melt plastic material, forms a flat and uniform hot-melt plastic layer, at the same time, the die of the composite rib pipe extrusion device sends out the composite rib pipe and winds it on the above-mentioned hot-melt plastic layer, constitutes the outer-wall reinforcing structure layer of the pipe, next, when the supporting frame moves to the splicing area of the spigot pipe fitting and the end of the inner-wall pipe, the die of the adhesive tape extrusion device is aligned with the above-mentioned splicing area again, extrudes and winds the hot-melt adhesive tape on the above-mentioned splicing area, completes the lap hot-melt welding of the spigot pipe fitting and the end of the inner-wall pipe, when the forming and processing of the pipe are completed, each device returns to the original position, the supporting frame returns to the original position, the supporting roller stops rotating, the steel mold pipe is removed through the hoisting equipment, the pipe on the steel mold pipe is cooled and demolded, and finally the production of the above-mentioned winding structure wall reinforcing solid-wall pipe is completed.

[0026] In the description of the present application, the technical terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer" and the like represent the direction or position relationship based on the direction or position relationship shown in the drawings, which is only for the convenience of describing and understanding the technical solutions of the present application, and the above description is not a limitation on the present application, and the present application is not limited to the above examples, the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the present application should be regarded as the protection scope of the present application.

Claims

1. A reinforced solid wall pipe of wound structural wall construction characterised in that: The pipe (10) comprises an inner wall pipe (101) of an inner layer, a socket pipe fitting (102) and a spigot pipe fitting (103) respectively arranged at and fixed with both ends of the inner wall pipe, and a rib pipe (104) of an outer layer wound on the surface of the inner wall pipe. The inner wall pipe is a seamless solid wall pipe formed by extrusion. The rib pipe is a composite rib pipe formed by annularly wrapping a hot melt adhesive on a corrugated pipe. The composite rib pipe forms an outer wall reinforcing structure of the pipe. The end surface of the inner wall pipe is connected with the inner end surface of the socket pipe fitting / spigot pipe fitting, and a hot melt adhesive tape connecting layer (105) is wound and wrapped thereon.

2. A reinforced solid wall pipe of the wound structural wall type according to claim 1, characterized in that: The surface of the inner wall pipe (101) is wound and wrapped with a hot melt plastic layer (106), and the thickness of the hot melt plastic layer is 0.2-2 mm.

3. A spool of reinforced solid wall tubing of wound structural wall construction according to claim 2, characterised in that: The surface of the inner wall pipe is provided with a notch (107), and the depth of the notch is 0.1-1 mm.

4. A winding structure wall reinforcing solid wall pipe processing technology, the steps of which are as follows: S1, preform a solid wall seamless inner wall pipe, preform a socket pipe fitting and a spigot pipe fitting; S2, install the inner wall pipe on a steel mold pipe, and insert the socket pipe fitting and the spigot pipe fitting on the steel mold pipe and at both ends of the inner wall pipe; S3, place the steel mold pipe with the inner wall pipe, the socket pipe fitting and the spigot pipe fitting sleeved thereon on a supporting roller and rotate with the supporting roller; S4, wind a hot melt adhesive tape at the connection between the end of the inner wall pipe and the inner end of the socket pipe fitting / spigot pipe fitting, and integrate the hot melt adhesive tape with the pipe fitting; S5, perform a roughening treatment on the surface of the inner wall pipe to form a plurality of notches on the surface of the inner wall pipe; S6, perform hot air heating on the surface of the inner wall pipe after the roughening treatment to form a molten structure on the surface of the inner wall pipe, and the temperature of the hot air is 120-150°C; S7, wind and extrude molten adhesive on the surface of the inner wall pipe to form a hot melt plastic layer on the surface of the inner wall pipe; S8, roll and flatten the hot melt plastic layer to extrude the molten adhesive into the notches on the surface of the inner wall pipe, so that the hot melt plastic layer is better fused with the surface of the inner wall pipe; S9, wrap a composite rib pipe on the hot melt plastic layer of the inner wall pipe to form a spiral rib pipe reinforcing structure layer of the outer wall of the pipe; S10, remove the steel mold pipe, cool and demold the formed pipe on the steel mold pipe, and complete the processing and manufacturing of the winding structure wall reinforcing solid wall pipe.

5. The process for winding a structural wall-reinforced solid wall pipe according to claim 4, characterized in that: The solid wall seamless inner wall pipe (101) in step S1 is a seamless solid wall pipe formed by extrusion, and the socket pipe fitting (102) / spigot pipe fitting (103) is a socket pipe fitting / spigot pipe fitting with a heating ring.

6. The process for winding a structural wall-reinforced solid wall pipe according to claim 4, characterized in that: The roughening treatment in step S4 adopts a milling method to process spiral grooves on the surface of the inner wall pipe, and the groove depth is 0.1-1 mm.

7. The process for winding a structural wall-reinforced solid wall pipe according to claim 4 or 6, characterized in that: The roughening treatment further comprises a surface cleaning treatment, and the surface cleaning treatment is dust removal by blowing.

8. A winding structure wall reinforcing solid wall pipe processing production line, comprising: an inner wall pipe forming device for the extrusion forming of the inner wall pipe; a socket / spigot pipe fitting forming device for the forming of the socket pipe fitting and the spigot pipe fitting; The pipe supporting device (20) for positioning and supporting of the pipe comprises a track (201), a supporting frame (202) placed on the track and moving along the track, a supporting roller (203) placed on the supporting frame and rotating with the supporting frame, a steel mold pipe (204) placed on the supporting roller and rotating with the supporting roller, and a hoisting device, and the inner wall pipe, the socket pipe and the spigot pipe are respectively sleeved on the steel mold pipe and rotate with the steel mold pipe; The main machine comprises a rack (30) and a rubber belt extruding device (40), a rubber pad forming device (50), a composite rib pipe extruding device (60), an inner wall pipe surface treatment device (70), and an inner wall pipe surface heating device (80) placed on the rack; The rubber belt extruding device is used for extruding hot melt rubber belt and wrapping the joint area between the end of the socket / spigot pipe and the end of the inner wall pipe; The rubber pad forming device comprises a plastic extruding mechanism (501) and a rolling mechanism (502), the plastic extruding mechanism is used for extruding hot melt plastic and wrapping the surface of the inner wall pipe, and the rolling mechanism is used for flattening and rolling the extruded hot melt plastic to form a flat and uniform hot melt plastic layer; The composite rib pipe extruding device is used for extruding the composite rib pipe and wrapping it on the hot melt plastic layer on the surface of the inner wall pipe to form the outer wall reinforcing structure of the pipe; The inner wall pipe surface treatment device is used for roughening treatment of the surface of the inner wall pipe; The inner wall pipe surface heating device is used for heating treatment of the surface of the inner wall pipe; The pipe cooling and demolding device is used for cooling and demolding the formed pipe from the steel mold pipe; The controller is used for controlling the operation of the above devices, and the controller comprises a man-machine interface.

9. The process line for producing reinforced solid wall pipe with a structural wall according to claim 8, characterized in that: The inner wall pipe surface treatment device (70) comprises a milling cutter (701) and a milling cutter motor, the milling cutter corresponds to the surface of the inner wall pipe and mills multiple grooves on the surface of the inner wall pipe by the depth of the milling cutter motor, and the inner wall pipe surface heating device (80) comprises a hot air blower, and the hot air blower heats the surface of the inner wall pipe by hot air.

10. The process line for producing reinforced solid wall pipe with a structural wall according to claim 9, characterized in that: The inner wall pipe surface treatment device (70) further comprises a cold air blower (702) for cleaning the surface of the inner wall pipe, and the air inlet of the cold air blower corresponds to the surface of the inner wall pipe after roughening treatment and blows cold air.

Images