High-performance composite PET-PE water supply pipe and preparation method thereof

Abstract

Wire winding equipment comprises a rotating disc, a plurality of winches are rotationally arranged on the rotating disc, the winches are evenly distributed in the circumferential direction of the rotating disc, the rotating disc is used for containing steel wire coils, a wire dividing sleeve is arranged at the circle center of the rotating disc, and the wire dividing sleeve is connected with the rotating disc in a sleeving mode. A pipe material penetrates through the wire separating sleeve; the moving speed of the pipe material is monitored in real time to adjust the rotating speed of the rotating disc, so that reasonable matching of the pipe material and the rotating disc is ensured, a steel wire mesh framework is uniformly distributed, uniform thickness and qualified strength of the produced high-performance composite PET-PE water supply pipe are ensured, and meanwhile, steel wire raw materials can be saved; according to the high-performance composite PET-PE water supply pipe, the steel wires are compounded on the pipe wall to form the reinforced steel wire layer, the steel wire layer is compounded in the pipe wall through inner and outer plastic coating, the steel wires are prevented from being corroded by media, the steel wire layer plays a main role in pressure resistance of the pipe, the plastic consumption can be reduced, the cost is low, and the strength is high.

Description

Technical Field

[0001] The invention belongs to the technical field of composite water supply pipes, and in particular relates to a high-performance composite PET-PE water supply pipe and a preparation method thereof. Background Art

[0002] When the existing steel wire composite skeleton water supply pipe is coated with the steel wire skeleton, it is impossible to control the uniform speed of the pipe material to be pulled, resulting in uneven coating of the steel wire skeleton, causing the strength of the produced water supply pipe to fail to meet the standards. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention aims to provide a high-performance composite PET-PE water supply pipe and a preparation method thereof.

[0004] The technical solution adopted by the present invention is:

[0005] A high-performance composite PET-PE water supply pipe and a preparation method thereof, comprising the following steps:

[0006] S1. Inner lining molding: using PET material, the inner lining is molded by using a pipe extruder, and after the molded inner lining is cooled, a traction device is used to contact the outer wall of the inner lining so that the inner lining is continuously transported along the length direction;

[0007] S2, one-time gluing: using modified adhesive resin, using gluing equipment, evenly gluing the outer wall of the inner lining layer to form a second glue layer, and under the action of the traction equipment, the second glue layer and the inner lining layer are continuously transported along their length direction;

[0008] S3, covering the skeleton; after the second rubber layer is cooled to a certain temperature, a wire winding device is used to sequentially wind clockwise and counterclockwise steel wires on the outer wall of the second rubber layer to form a skeleton, and under the action of the traction device, the skeleton, the second rubber layer and the inner lining layer are continuously transported along their length direction; the wire winding device comprises a rotating disk, on which a plurality of capstans are rotatably arranged, and the plurality of capstans are evenly distributed along the circumference of the rotating disk, the rotating disk is used to place the steel wire roll, and a wire dividing sleeve is arranged at the center of the rotating disk, and the wire dividing sleeve and the pipe material pass through the wire dividing sleeve; a fixed wire is arranged on one side of the rotating disk A fixed frame, a rotating gear is rotatably provided on the fixed frame, the rotating gear is fixedly connected to the rotating disk, a control gear ring is provided on the side of the rotating gear away from the rotating disk, the rotating gear and the control gear ring are rotatably connected, a monitoring device is detachably installed on one side of the fixed frame, the monitoring device is used to detect the relative rotation of the rotating gear and the control gear ring, the rotation speed of the control gear ring is affected by the speed of the pipe material moving in the length direction; the monitoring device is used to control the rotation speed of the rotating disk to match the speed of the pipe material moving in the length direction;

[0009] S4, secondary glue coating: using modified adhesive resin, using glue coating equipment, evenly coating the outer wall of the frame to form a first glue layer, under the action of the traction equipment, the first glue layer, the frame, the second glue layer and the inner lining layer are continuously transported along the length direction, after being heated and cooled by the electric heating ring, the first glue layer, the frame and the second glue layer form a glue layer, under the action of the traction equipment, the glue layer and the inner lining layer are transported along the length direction;

[0010] S5. Forming the outer layer: Using HDPE material, forming the outer layer on the outer wall of the rubber layer to obtain a high-performance composite PET-PE water supply pipe.

[0011] As a preferred embodiment of the present invention, a driving motor is fixedly provided on one side of the fixed frame, and a driving gear is fixedly provided on the output shaft of the driving motor, and the driving gear is meshed with the rotating gear; the driving motor drives the rotating disk to rotate, and the steel wires on the multiple capstans are synchronously wound on the rubber layer 2, and the winding of the clockwise and counterclockwise steel wires is achieved by using the two wire winding devices with opposite rotation directions.

[0012] As a preferred embodiment of the present invention, a transition ring is provided on the outer side of the wire dividing sleeve, and the transition ring is fixedly connected to the rotating disk. The capstan is connected to the rotating disk through a torsion spring, and a plurality of wire dividing grooves are provided at one end of the wire dividing sleeve away from the rotating disk. The plurality of wire dividing grooves are evenly distributed along the circumference of the wire dividing sleeve; the wire dividing grooves form an angle with the bottom surface of the wire dividing sleeve, and the transition ring and the wire dividing grooves are used to guide the winding direction of the wire.

[0013] As a preferred embodiment of the present invention, a control shaft is rotatably provided on the fixed frame, and a friction wheel and a transmission bevel gear are detachably mounted on the control shaft, the friction wheel cooperates with the side wall of the pipe material, a driving bevel gear is provided on one side of the transmission bevel gear, the transmission bevel gear is meshed with the driving bevel gear, the driving bevel gear is rotatably connected to the fixed frame, and the driving bevel gear is meshed with the inner side of the control gear ring.

[0014] As a preferred embodiment of the present invention, the control shaft includes two connecting rods, one of which is rotatably connected to the fixed frame, and the other connecting rod is rotatably connected to the mounting frame, and the mounting frame is fixedly connected to the fixed frame, and the friction wheel includes a control wheel and a retaining wheel, and the control wheel and the retaining wheel are respectively mounted on the two connecting rods; the connecting rod close to the retaining wheel side is connected to the transmission bevel gear.

[0015] As a preferred embodiment of the present invention, a fixing sleeve is fixedly provided at one end of the two connecting rods close to each other, and the two fixing sleeves are respectively covered on the outside of the two connecting rods, a control spring is respectively provided on the circumferential side of the two fixing sleeves, a flange is fixedly provided at one end of the two fixing sleeves away from each other, and a mounting plate is respectively provided at one end of the two fixing sleeves close to each other, and the two mounting plates are respectively spline-connected to the two connecting rods.

[0016] As a preferred embodiment of the present invention, the control wheel and the retaining wheel are respectively threadedly connected to the corresponding mounting plates, and the circumferences of the control wheel and the retaining wheel are arc-shaped; the control wheel and the retaining wheel fit with the side wall of the pipe material after cooperation.

[0017] As a preferred embodiment of the present invention, one end of the two mounting plates close to each other is respectively fixed with one, and the two end faces are matched. After the two end faces are matched, the control wheel and the retaining wheel rotate synchronously.

[0018] As a preferred embodiment of the present invention, the two are respectively located in the control wheel and the retaining wheel, and the control wheel, the retaining wheel and the two are all hollow structures.

[0019] A high-performance composite PET-PE water supply pipe comprises an inner lining layer, a glue layer and an outer layer which are bonded together from the inside to the outside, wherein the inner lining layer is made of PET material, the glue layer is composed of a modified bonding resin and the skeleton, and the outer layer is made of HDPE material; the thickness of the inner lining layer is 0.1-1 mm, the thickness of the glue layer is 0.5-3 mm, and the thickness of the outer layer is 5-30 mm.

[0020] The beneficial effects of the present invention are as follows: as a high-performance composite PET-PE water supply pipe and a preparation method thereof, the present invention monitors the moving speed of the pipe material in real time to adjust the rotation speed of the rotating disk, ensuring that the two are reasonably coordinated, so that the steel wire mesh skeleton is evenly distributed, ensuring that the high-performance composite PET-PE water supply pipe produced has uniform thickness and qualified strength, and can save steel wire raw materials at the same time; the high-performance composite PET-PE water supply pipe steel wire of the present invention is compounded with the pipe wall to form a reinforced steel wire layer, and the inner and outer plastic coatings compound the steel wire layer therein to prevent the steel wire from being corroded by the medium, and the steel wire layer plays the main role of the pressure resistance of the pipe, and can reduce the amount of plastic used, with low cost and high strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Figure 1 This is a schematic diagram of the structure of the high-performance composite PET-PE water supply pipe of the present invention;

[0023] Figure 2It is a schematic diagram of the structure of the wire winding equipment of the present invention;

[0024] Figure 3 The present invention Figure 2 A schematic diagram of the front view structure of

[0025] Figure 4 The present invention Figure 2 A schematic diagram of a top view structure;

[0026] Figure 5 The present invention Figure 2 Schematic diagram of the explosion structure;

[0027] Figure 6 The present invention Figure 2 A schematic structural diagram of another embodiment of a friction wheel;

[0028] Figure 7 The present invention Figure 6 A schematic cross-sectional structure diagram of ;

[0029] Figure 8 The present invention Figure 6 Schematic diagram of the structure after the upper part of the parts are hidden. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0032] Combine the following Figure 1-8 The specific implementation mode of the present invention is described. In one embodiment of the present invention, a method for preparing a high-performance composite PET-PE water supply pipe comprises the following steps:

[0033] S1, inner lining molding: using PET material, using a pipe extruder to mold the inner lining 35, after the molded inner lining 35 is cooled, using a traction device to contact the outer wall of the inner lining 35, so that the inner lining 35 is continuously transported along the length direction; the traction device is a contact conveyor belt, through which the rough belt of the conveyor belt contacts the outer wall of the pipe material 11, and the pipe material 11 is pulled to move along the length direction. In this step, the unformed inner lining 35 of the high-performance composite PET-PE water supply pipe is the pipe material 11;

[0034] S2, one-time glue coating; using a modified adhesive resin, using a glue coating device, evenly coating the outer wall of the inner lining layer 35 to form a second glue layer 34, under the action of a traction device, the second glue layer 34 and the inner lining layer 35 are continuously transported along their length direction;

[0035] S3, covering the skeleton; after the second rubber layer 34 is cooled to a certain temperature, the wire winding device is used to sequentially wind the clockwise steel wire and the counterclockwise steel wire on the outer wall of the second rubber layer 34 to form a skeleton 33. Under the action of the traction device, the skeleton 33, the second rubber layer 34 and the inner lining layer 35 are continuously transported along their length direction;

[0036] S4, secondary glue coating; using modified adhesive resin, using glue coating equipment, evenly coating the outer wall of the frame 33 to form a glue layer 1 32, under the action of the traction device, the glue layer 1 32, the frame 33, the glue layer 2 34 and the inner lining layer 35 are continuously transported along the length direction thereof, after being heated and cooled by the electric heating ring 14, the glue layer 1 32, the frame 33 and the glue layer 2 34 form a glue layer, under the action of the traction device, the glue layer and the inner lining layer 35 are transported along the length direction thereof;

[0037] S5, outer layer molding; using HDPE material, the outer layer 31 is molded on the outer wall of the rubber layer to obtain a high-performance composite PET-PE water supply pipe;

[0038] The wire winding device comprises a rotating disk 12, on which a plurality of capstans 13 are rotatably arranged, and the plurality of capstans 13 are evenly distributed along the circumference of the rotating disk 12, and the rotating disk 12 is used to place the wire roll, and a wire dividing sleeve 25 is arranged at the center of the rotating disk 12, and the pipe material 11 passes through the wire dividing sleeve 25; a fixed frame 15 is arranged on one side of the rotating disk 12, and a rotating gear 17 is rotatably arranged on the fixed frame 15, and the rotating gear 17 is fixedly connected to the rotating disk 12, and the rotating gear 17 is remote. A control gear ring 18 is provided on one side away from the rotating disk 12, and the rotating gear 17 and the control gear ring 18 are rotatably connected. A monitoring device 28 is detachably installed on one side of the fixing frame 15, and the monitoring device 28 is used to detect the relative rotation of the rotating gear 17 and the control gear ring 18. The rotation speed of the control gear ring 18 is affected by the speed of the pipe material 11 moving in the length direction. In step S2, the monitoring device 28 is used to control the rotation speed of the rotating disk 12 to match the speed of the pipe material 11 moving in the length direction. The monitoring device 28 is used to monitor the moving speed of the pipe material 11 in real time to adjust the rotation speed of the rotating disk 12, ensure that the two are reasonably matched, so that the steel wire mesh skeleton is evenly distributed, and the high-performance composite PET-PE water supply pipe produced is uniform in thickness and qualified in strength, and steel wire raw materials can be saved at the same time.

[0039] Advantageously, a driving motor 16 is fixedly provided on one side of the fixing frame 15, and a driving gear 23 is fixedly provided on the output shaft of the driving motor 16, and the driving gear 23 is meshed with the rotating gear 17; the driving motor 16 drives the rotating disk 12 to rotate, and the steel wires on the plurality of capstans 13 are synchronously wound on the second rubber layer 34, and the winding of the steel wires in clockwise and counterclockwise directions is realized by using the two winding devices with opposite rotation directions. The pipe material 11 passes through the two winding devices in sequence, and the distance between the two winding devices is small, so that no heating is required when winding the second layer of steel wire.

[0040] Advantageously, a transition ring 26 is provided on the outer side of the wire separation sleeve 25, the transition ring 26 is fixedly connected to the rotating disk 12, the capstan 13 is connected to the rotating disk 12 via a torsion spring, a plurality of wire separation grooves 27 are provided at one end of the wire separation sleeve 25 away from the rotating disk 12, and the plurality of wire separation grooves 27 are evenly distributed along the circumference of the wire separation sleeve 25; the wire separation grooves 27 are at an angle to the bottom surface of the wire separation sleeve 25, and the transition ring 26 and the wire separation grooves 27 are used to guide the direction of wire winding. The inclination direction of the wire separation grooves 27 is adapted to the rotation direction of the rotating disk 12.

[0041] Advantageously, a control shaft 21 is rotatably provided on the fixed frame 15, and a friction wheel 19 and a transmission bevel gear 20 are detachably mounted on the control shaft 21, the friction wheel 19 cooperates with the side wall of the pipe material 11, and a driving bevel gear 24 is provided on one side of the transmission bevel gear 20, and the transmission bevel gear 20 is meshed with the driving bevel gear 24, and the shaft on which the driving bevel gear 24 is located is rotatably connected to the fixed frame 15, and the driving bevel gear 24 is meshed with the inner side of the control gear ring 18, and the inner ring of the control gear ring 18 has teeth.

[0042] In another embodiment of the present invention, the control shaft 21 includes two connecting rods 41, one of which is rotatably connected to the fixing frame 15, and the other connecting rod 41 is rotatably connected to the mounting frame 22, and the mounting frame 22 is fixedly connected to the fixing frame 15, and the friction wheel 19 includes a control wheel 44 and a retaining wheel 45, and the control wheel 44 and the retaining wheel 45 are respectively mounted on the two connecting rods 41; the connecting rod 41 close to the retaining wheel 45 is connected to the transmission bevel gear 20. The control wheel 44 and the retaining wheel 45 are made of different materials, the friction coefficient between the control wheel 44 and the pipe material 11 is large, the transmission is more accurate, but the wear is fast, and the friction coefficient between the retaining wheel 45 and the pipe material 11 is small, the transmission is more accurate, but the wear is slow.

[0043] Advantageously, a fixing sleeve 43 is fixedly provided at one end of the two connecting rods 41 close to each other, and the two fixing sleeves 43 are respectively covered on the outside of the two connecting rods 41, and a control spring 48 is respectively provided on the circumference of the two fixing sleeves 43, and a flange 42 is fixedly provided at one end of the two fixing sleeves 43 away from each other, and a mounting piece 47 is respectively provided at one end of the two fixing sleeves 43 close to each other, and the two mounting pieces 47 are respectively spline-connected with the two connecting rods 41. The control spring 48 is used for resetting, and its two ends are respectively in contact with the mounting piece 47 and the flange 42.

[0044] Advantageously, the control wheel 44 and the retaining wheel 45 are respectively threadedly connected to the corresponding mounting plate 47, and the circumferential sides of the control wheel 44 and the retaining wheel 45 are arc-shaped; the control wheel 44 and the retaining wheel 45 fit with the side wall of the pipe material 11 after cooperation, and in this state, the splicing plane of the control wheel 44 and the retaining wheel 45 passes through the axis of the pipe material 11.

[0045] Advantageously, a coupling member 50 is fixedly provided at one end of the two mounting pieces 47 close to each other, and the end faces of the two coupling members 50 match, and after the two coupling members 50 match, the control wheel 44 and the retaining wheel 45 rotate synchronously. The end face of the coupling member 50 is a wedge-shaped structure, and when the two coupling members 50 are close to each other, they will gradually fit together at any angle.

[0046] Advantageously, the two coupling members 50 are respectively located in the control wheel 44 and the retaining wheel 45 . The control wheel 44 , the retaining wheel 45 and the two coupling members 50 are all hollow structures. When the mounting plate 47 slides, the control wheel 44 and the coupling member 50 can pass through the fixing sleeve 43 .

[0047] A high-performance composite PET-PE water supply pipe, comprising an inner lining layer 35, a glue layer and an outer layer 31 which are bonded together from the inside to the outside, wherein the inner lining layer 35 is made of PET, the glue layer is composed of a modified bonding resin and the skeleton 33, and the outer layer 31 is made of HDPE; the thickness of the inner lining layer 35 is 0.1 mm, the thickness of the glue layer is 0.5 mm, and the thickness of the outer layer 31 is 5 mm.

[0048] In another embodiment of the present invention, the thickness of the inner lining layer 35 is 1 mm, the thickness of the adhesive layer is 3 mm, and the thickness of the outer surface layer 31 is 30 mm.

[0049] Working principle of the present invention:

[0050] The inner lining layer is formed; PET material is used and the inner lining layer 35 is formed by a pipe extruder. The formed inner lining layer 35 has a stable shape after cooling. After the thickness is detected to be up to standard, a traction device is used to contact the outer wall of the inner lining layer 35 so that the inner lining layer 35 is continuously transported along the length direction; the pipe material 11 is a high-performance composite PET-PE water supply pipe that is not fully formed or has been fully formed.

[0051] Apply glue once; use modified adhesive resin and glue coating equipment to evenly apply glue on the outer wall of the inner lining layer 35 to form a second glue layer 34. Under the action of the traction equipment, the second glue layer 34 and the inner lining layer 35 are continuously transported along their length direction; the second glue layer 34 does not need to be completely cooled and also has a certain shape to meet the transportation requirements.

[0052] After the second rubber layer 34 is cooled to a certain temperature, the wire winding device is used to sequentially wind the clockwise steel wire and the counterclockwise steel wire on the outer wall of the second rubber layer 34 to form a skeleton 33. Under the action of the traction device, the skeleton 33, the second rubber layer 34 and the inner lining layer 35 are continuously transported along their length direction;

[0053] The winding principle of clockwise and counterclockwise wire is the same. It is only necessary to set up two wire winding devices with opposite driving directions. Take one of the wire winding devices as an example, refer to the attached Figure 2-5First, the ends of the steel wires on the multiple capstans 13 are fixed on the outer wall of the pipe material 11, and the driving motor 16 is started to drive the driving gear 23 to rotate. The driving gear 23 drives the rotating gear 17 to rotate through meshing, and the rotating disk 12 rotates together with the rotating gear 17. The pipe material 11 continues to move under the action of the traction equipment, and multiple strands of steel wire are synchronously wound on the surface of the pipe material 11, and a section at the fixed position of the end is subsequently cut off.

[0054] During the winding process, the outer side of the tube material 11 contacts the friction wheel 19, driving the friction wheel 19 to rotate, the friction wheel 19 drives the control shaft 21 to rotate, the transmission bevel gear 20 rotates along with the control shaft 21, the transmission bevel gear 20 drives the driving bevel gear 24 to rotate through meshing, and the driving bevel gear 24 drives the control gear ring 18 to rotate through meshing;

[0055] Under ideal conditions, the pipe material 11 moves at a uniform speed, and the driving motor 16 controls the rotating disk 12 to rotate at a uniform speed corresponding to the uniform movement of the pipe material 11, so that the steel wire wrapped on the surface of the pipe material 11 is evenly distributed. The rotation speed of the rotating disk 12 and the moving speed ratio of the pipe material 11 affect the winding angle of the steel wire; however, in the actual production process, the traction speed of the pipe material 11 is affected by the contact friction coefficient and temperature between the traction equipment and the outer wall of the pipe material 11. Before the pipe material 11 is fully formed, the pipe material 11 cannot be subjected to excessive pressure. Therefore, the actual moving speed of the pipe material 11 is non-uniform, and the rotation speed of the control ring gear 18 is non-uniform. The monitoring device 28 is used to detect the rotation speed of the control ring gear 18 relative to the rotating gear 17, and the feedback is given to the driving motor 16. The driving motor 16 actually adjusts the rotation speed of the rotating gear 17 to match the control ring gear 18, so that the rotation speed of the rotating disk 12 matches the non-uniformly moving pipe material 11, ensuring that when the pipe material 11 moves at a non-uniform speed, the steel wire is still evenly wound on the surface of the pipe material 11. The monitoring device 28 is provided with two contact wheels, which are in contact with the rotating gear 17 and the control gear ring 18 respectively, reflecting the speed difference between the rotating gear 17 and the control gear ring 18. If the pipe material 11 moves at a uniform speed at an ideal speed, there is no relative rotation between the rotating gear 17 and the control gear ring 18. On the contrary, if the rotating gear 17 rotates too fast or too slow relative to the control gear ring 18, the feedback drive motor 16 needs to be adjusted.

[0056] Secondary gluing: using modified adhesive resin, using gluing equipment, evenly apply glue on the outer wall of the skeleton 33 to form a glue layer 32. Under the action of the traction equipment, the glue layer 32, the skeleton 33, the glue layer 2 34 and the inner lining layer 35 are continuously transported along their length direction. After heating and cooling by the electric heating ring 14, the glue layer 32, the skeleton 33 and the glue layer 2 34 form a glue layer. Under the action of the traction equipment, the glue layer and the inner lining layer 35 are transported along their length direction.

[0057] The outer layer is molded; using HDPE material, the outer layer 31 is molded on the outer wall of the rubber layer, and the inner lining layer 35, the rubber layer and the outer layer 31 are heated and cooled and then solidified into one, thereby obtaining a high-performance composite PET-PE water supply pipe.

[0058] In addition, during the production process, the friction wheel 19 used to contact the outer wall of the pipe material 11 to detect its movement is worn and needs to be replaced regularly; Figure 6-8 The replacement operation is divided into replacement without stopping the machine and replacement with stopping the machine.

[0059] During operation, the control wheel 44 and the retaining wheel 45 contact the outer wall of the pipe material 11, driving the two connecting rods 41 to rotate, and then driving the transmission bevel gear 20 to rotate. During this process, the control wheel 44, the retaining wheel 45, the coupling 50, the fixing sleeve 43, and the mounting plate 47 rotate synchronously.

[0060] When replacing without stopping the machine, the shift fork is inserted into the gap between the control wheel 44 and the mounting plate 47. In the initial stage of the shift fork insertion, the shift fork does not affect the rotation of the control wheel 44; when the shift fork shifts the mounting plate 47, the two coupling members 50 are separated instantly, the mounting plate 47 and the fixing sleeve 43 slide, the control wheel 44 is no longer in contact with the outer wall of the pipe material 11, and the parts on one side of the control wheel 44 stop rotating, but the parts on the side of the wheel 45 continue to work, and the transmission bevel gear 20 can still be driven to rotate; then the connecting rod 41 is clamped to limit its rotation, and the control wheel 44 is twisted to separate the control wheel 44 and the mounting plate 47, and then a new control wheel 44 is replaced;

[0061] After the new control wheel 44 is installed, the shift fork is released, and under the action of the control spring 48, the mounting plate 47 and the control wheel 44 are reset. After the two coupling members 50 come into contact, the wedge-shaped structures of the end faces of the two gradually fit together, and the new control wheel 44 can come into contact with the outer wall of the pipe material 11, thereby restoring the detection function.

[0062] Usually, the retaining wheel 45 is replaced once after the control wheel 44 is replaced multiple times. The main function of the retaining wheel 45 is that when the control wheel 44 is replaced, the machine can be operated without stopping, thereby ensuring production efficiency;

[0063] When the machine is stopped for replacement, the control wheel 44 and the retaining wheel 45 are replaced at the same time, which is the same as the above principle. However, the production line needs to be suspended at this time because the control wheel 44 and the retaining wheel 45 are away from the pipe material 11 at the same time, and the moving speed of the pipe material 11 cannot be detected.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A high-performance composite PET-PE water supply pipe and a preparation method thereof, characterized in that: The following steps are involved: S1. Inner lining molding: using PET material, using a pipe extruder to mold the inner lining, after the molded inner lining is cooled, using a traction device to contact the outer wall of the inner lining, so that the inner lining is continuously transported along the length direction; S2, one-time glue coating: using modified adhesive resin, using glue coating equipment, evenly coating the outer wall of the inner lining layer to form a second glue layer, and under the action of the traction equipment, the second glue layer and the inner lining layer are continuously transported along their length direction; S3, covering the skeleton; after the second rubber layer is cooled to a certain temperature, a wire winding device is used to sequentially wind clockwise and counterclockwise steel wires on the outer wall of the second rubber layer to form a skeleton, and under the action of the traction device, the skeleton, the second rubber layer and the inner lining layer are continuously transported along their length direction; the wire winding device comprises a rotating disk, on which a plurality of capstans are rotatably arranged, and the plurality of capstans are evenly distributed along the circumference of the rotating disk, the rotating disk is used to place the steel wire roll, and a wire dividing sleeve is arranged at the center of the rotating disk, and the wire dividing sleeve and the pipe material pass through the wire dividing sleeve; a fixed wire is arranged on one side of the rotating disk A fixed frame, a rotating gear is rotatably provided on the fixed frame, the rotating gear is fixedly connected to the rotating disk, a control gear ring is provided on the side of the rotating gear away from the rotating disk, the rotating gear and the control gear ring are rotatably connected, a monitoring device is detachably installed on one side of the fixed frame, the monitoring device is used to detect the relative rotation of the rotating gear and the control gear ring, the rotation speed of the control gear ring is affected by the speed of the pipe material moving in the length direction; the monitoring device is used to control the rotation speed of the rotating disk to match the speed of the pipe material moving in the length direction; S4, secondary gluing; Using modified adhesive resin, using glue coating equipment, evenly coating the outer wall of the frame to form a first glue layer, under the action of traction equipment, the first glue layer, the frame, the second glue layer and the inner lining layer are continuously transported along the length direction, after being heated and cooled by the electric heating ring, the first glue layer, the frame and the second glue layer form a glue layer, under the action of traction equipment, the glue layer and the inner lining layer are transported along the length direction; S5. Forming the outer layer: Using HDPE material, forming the outer layer on the outer wall of the rubber layer to obtain a high-performance composite PET-PE water supply pipe.

2. A high-performance composite PET-PE water supply pipe and a preparation method thereof according to claim 1, characterized in that: A driving motor is fixedly provided on one side of the fixing frame, and a driving gear is fixedly provided on the output shaft of the driving motor, and the driving gear is meshed with the rotating gear; the driving motor drives the rotating disk to rotate, and the steel wires on the multiple capstans are synchronously wound on the rubber layer 2, and the winding of the clockwise steel wire and the counterclockwise steel wire is realized by using the two wire winding devices with opposite rotation directions.

3. A high-performance composite PET-PE water supply pipe and a preparation method thereof according to claim 2, characterized in that: A transition ring is provided on the outer side of the wire dividing sleeve, and the transition ring is fixedly connected to the rotating disk. The capstan is connected to the rotating disk through a torsion spring. A plurality of wire dividing grooves are provided at one end of the wire dividing sleeve away from the rotating disk. The plurality of wire dividing grooves are evenly distributed along the circumference of the wire dividing sleeve. The wire dividing grooves form an angle with the bottom surface of the wire dividing sleeve, and the transition ring and the wire dividing grooves are used to guide the winding direction of the steel wire.

4. A high-performance composite PET-PE water supply pipe and a preparation method thereof according to claim 2, characterized in that: A control shaft is rotatably provided on the fixed frame, and a friction wheel and a transmission bevel gear are detachably mounted on the control shaft. The friction wheel cooperates with the side wall of the pipe material, and a driving bevel gear is provided on one side of the transmission bevel gear. The transmission bevel gear is meshed with the driving bevel gear, and the driving bevel gear is rotatably connected to the fixed frame, and the driving bevel gear is meshed with the inner side of the control gear ring.

5. A high-performance composite PET-PE water supply pipe and a preparation method thereof according to claim 4, characterized in that: The control shaft includes two connecting rods, one of which is rotatably connected to the fixed frame, and the other connecting rod is rotatably connected to the mounting frame, and the mounting frame is fixedly connected to the fixed frame. The friction wheel includes a control wheel and a retaining wheel, and the control wheel and the retaining wheel are respectively installed on the two connecting rods; the connecting rod close to the retaining wheel is connected to the transmission bevel gear.

6. A high-performance composite PET-PE water supply pipe and a preparation method thereof according to claim 5, characterized in that: A fixing sleeve is fixedly provided at one end of the two connecting rods close to each other, and the two fixing sleeves are respectively covered on the outside of the two connecting rods. A control spring is respectively provided on the circumferential side of the two fixing sleeves. A flange is fixedly provided at one end of the two fixing sleeves away from each other, and a mounting plate is respectively provided at one end of the two fixing sleeves close to each other, and the two mounting plates are respectively spline-connected to the two connecting rods.

7. A high-performance composite PET-PE water supply pipe and a preparation method thereof according to claim 6, characterized in that: The control wheel and the retaining wheel are respectively threadedly connected to the corresponding mounting plates, and the peripheral sides of the control wheel and the retaining wheel are arc-shaped; the control wheel and the retaining wheel fit with the side wall of the pipe material after being matched.

8. A high-performance composite PET-PE water supply pipe and a preparation method thereof according to claim 7, characterized in that: A coupling piece is fixedly provided at one end of the two mounting pieces close to each other, and the end faces of the two coupling pieces match. After the two coupling pieces match, the control wheel and the retaining wheel rotate synchronously.

9. A high-performance composite PET-PE water supply pipe and a preparation method thereof according to claim 8, characterized in that: The two combining members are respectively located in the control wheel and the retaining wheel, and the control wheel, the retaining wheel and the two combining members are all hollow structures.

10. A high-performance composite PET-PE water supply pipe, produced by a high-performance composite PET-PE water supply pipe according to any one of claims 1 to 9 and a preparation method thereof, comprising the inner lining layer, the adhesive layer and the outer layer bonded together from the inside to the outside, the inner lining layer is made of PET material, the adhesive layer is composed of a modified adhesive resin and the skeleton, and the outer layer is made of HDPE material; the thickness of the inner lining layer is 0.1-1mm, the thickness of the adhesive layer is 0.5-3mm, and the thickness of the outer layer is 5-30mm.

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