Continuous winding forming device for socket type pipeline

Abstract

The invention discloses a socket type pipeline continuous winding forming device which comprises a winding forming mechanism and a feeding mechanism, the winding forming mechanism comprises a frame body and a forming cage, the forming cage comprises a suspension arm arranged on the frame body in a cantilever shape, the outer end of the suspension arm is provided with a fixed disc coaxially arranged, and the fixed disc is arranged on the frame body. Forming rollers parallel to the suspension supporting arm are rotatably arranged on the fixed disc, and a plurality of forming rollers are uniformly distributed in the circumferential direction of the suspension supporting arm; the forming roller comprises a main roller, the end, facing the frame body, of the main roller is sleeved with a sleeve roller capable of axially moving, and the end, away from the frame body, of the sleeve roller is a connection section with the diameter gradually decreased. A guide mechanism capable of transmitting torque in the circumferential direction is arranged between the main roller and the sleeve roller; the forming cage is provided with a feeding driving mechanism used for driving the sleeve roller to move in the axial direction of the main roller. The integrated winding device has the advantages of being reasonable in structural design, capable of continuously winding and forming the pipe body and the socket head, beneficial to reducing the production cost, improving the production efficiency and the like.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline production, in particular to a continuous winding forming device for a socket-and-spigot type pipeline. Background Art

[0002] Composite winding pipe is a new type of special-shaped structural wall pipe with the advantages of light weight, strong pressure bearing capacity, high interface quality, long life, corrosion resistance, high ring stiffness, convenient construction, etc. It is widely used in urban water supply, drainage, long-distance water transmission and farmland irrigation projects. Composite winding pipe is a strip profile spirally wound, and the adjacent sides of the latter circle of profiles and the previous circle of profiles are buckled and clamped to form a pipe. In order to increase the strength of the connection, it is usually connected with glue at the buckle.

[0003] At present, composite winding pipes are formed and manufactured through a continuous winding process. For example, a HDPE winding pipe production equipment disclosed in a Chinese patent document, with the publication number CN108000858A, uses a drive assembly and a roller, and a rotatable roller is set between the two end plates of the roller. The rollers are evenly distributed along the circumference. Each roller is driven by the drive assembly and rotates synchronously in the same direction. When the roller does not rotate as a whole, the belt wrapped around the roller is continuously wound and formed by the rotation of the roller. During the continuous forming process of the pipe body, it moves outward axially and grows continuously. In this way, the inner diameter of the pipe body must be consistent with the diameter of the circumscribed circle of multiple rollers.

[0004] However, during construction, the composite winding pipe is installed in sections, and the adjacent composite winding pipes at both ends need to be sealed and connected. For this reason, the existing composite winding pipe needs to be separately manufactured with a socket plug whose inner diameter matches the outer diameter of the composite winding pipe, and the socket plug is welded to one end of the composite winding pipe, so that the two sections of the pipe can be sealed and connected using the socket plug during construction. This post-welding socket plug requires additional socket plug processing equipment, and the welding can only be done manually, which not only affects production efficiency, but also increases production costs. Summary of the invention

[0005] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is: how to provide an integrated winding device with a reasonable structural design, which can continuously wind and form a pipe body and a socket, thereby helping to reduce production costs and improve production efficiency.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A continuous winding and forming device for a spigot-and-socket pipe comprises a winding and forming mechanism and a feeding mechanism for hot extruding a continuous strip, wherein the winding and forming mechanism comprises a frame and a cylindrical forming cage, wherein the feeding mechanism is located on one side of the forming cage so that the discharging end of the feeding mechanism can convey the continuous strip along the tangent of the forming cage; wherein the forming cage comprises a cantilever arm arranged on the frame in a cantilevered manner, wherein the outer end of the cantilever arm has a coaxially arranged fixed disk, wherein a forming roller parallel to the cantilever arm is rotatably arranged on the fixed disk, wherein a plurality of the forming rollers are evenly arranged along the circumference of the cantilever arm; wherein the forming The other end of the roller is rotatably arranged on the frame, and the frame is provided with a rotating drive mechanism for driving multiple forming rollers to rotate in the same direction; the forming rollers include a main roller, and the main roller is provided with an axially movable sleeve roller at one end facing the frame, the inner diameter of the sleeve roller is consistent with the diameter of the main roller, and the end away from the frame is a connecting section with a gradually decreasing diameter; a guide mechanism for circumferentially transmitting torque is provided between the main roller and the sleeve roller, and the guide mechanism is located at one end of the main roller and the sleeve roller facing the frame; the forming cage is provided with a feed drive mechanism for driving the sleeve roller to move along the axial direction of the main roller.

[0007] In the above structure, since the sleeve roller is sleeved on the main roller, its outer diameter must be greater than the diameter of the main roller, and the circumscribed circle diameter of the plurality of sleeve rollers must also be greater than the circumscribed circle diameter of the plurality of main rollers; since the sleeve roller has a connecting section with a smaller diameter at one end away from the frame, the circumscribed circle diameter at the connecting section also gradually decreases. During winding and forming, winding begins at the position where the plurality of main rollers are close to the sleeve roller, and the rotating drive mechanism allows the plurality of main rollers to rotate in the same direction, allowing the continuous strip to be wound around the outer cylindrical surface of the forming cage, and the formed tube body moves outward in the direction away from the frame, and the subsequent tube body is continuously formed. When the length of the tube body reaches the expected length, the sleeve roller is pushed outward at the speed of the tube body moving forward through the feed drive mechanism, and the newly wound continuous strip gradually forms an enlarged tube body under the action of the connecting section, and is finally wound around the sleeve roller and wound into a socket tube body.

[0008] Furthermore, the feed drive mechanism includes a push plate coaxially sleeved outside the cantilever arm, the push plate having a clearance hole corresponding to the main roller, and the end of the sleeve roller facing the frame body is rotatably engaged with the clearance hole through a bearing; the frame body has a linear telescopic mechanism arranged parallel to the cantilever arm, and the push plate is connected to the telescopic end of the linear telescopic mechanism.

[0009] The sleeve roller is installed on the clearance hole of the push plate through the bearing, so that the sleeve roller can rotate with the main roller and move along the axial direction of the main roller under the action of the push plate. All the sleeve rollers are connected together through the push plate, so that the linear telescopic mechanism can drive all the sleeve rollers to move together at the same time.

[0010] Furthermore, the push plate has a first reinforcing rib extending in the radial direction and a second reinforcing rib arranged in the circumferential direction, a plurality of the first reinforcing ribs are arranged in the circumferential direction of the push plate, and a plurality of the second reinforcing ribs are arranged in the radial direction.

[0011] In this way, the first reinforcing rib and the second reinforcing rib can increase the rigidity of the push plate, thereby preventing the push plate from being deformed during axial movement and affecting the smoothness of the movement, which is beneficial to extending the service life.

[0012] Furthermore, the push plate has a push rod arranged parallel to the cantilever arm on one side of the frame body, and multiple push rods are evenly distributed along the circumference of the push plate. Multiple push rods penetrate into the frame body and are installed with a push-pull plate; the telescopic end of the linear telescopic mechanism is connected to the push-pull plate.

[0013] In this way, the push-pull plate can evenly disperse the thrust or pull of the linear telescopic mechanism to the push plate through the push rods evenly distributed circumferentially, so that the push plate can move more smoothly, avoid damage due to unbalanced loading, and help extend its service life.

[0014] Furthermore, the linear telescopic mechanism is a hydraulic cylinder.

[0015] Furthermore, the guide mechanism is an external spline arranged on the main roller and an internal spline arranged on the sleeve roller.

[0016] In this way, power can be transmitted more smoothly through the cooperation of the internal spline and the external spline.

[0017] Furthermore, the sleeve roller includes a forming sleeve and a first guide sleeve, and the forming sleeve is integrally connected to the connecting section; the internal spline is arranged on the first guide sleeve, and the first guide sleeve is fixedly connected to the forming sleeve.

[0018] Furthermore, the main roller includes a roller body and a second guide sleeve sleeved on the roller body; the external spline is arranged on the second guide sleeve, and the second guide sleeve is fixed to the roller body by bolts.

[0019] By adopting this structure, the existing winding device can be easily upgraded, thereby greatly reducing the equipment cost.

[0020] Furthermore, one end of the main roller extends into the frame body, and the rotation drive mechanism includes a driven sprocket and a drive motor arranged on the main roller. The output end of the drive motor is provided with a driving sprocket, and the driving sprocket and multiple driven sprockets are connected with chains.

[0021] Furthermore, the sleeve roller has an insert shaft segment that matches the clearance hole, and the insert shaft segment is inserted into the clearance hole; the insert shaft segment has a relatively protruding retaining ring, and both sides of the clearance hole have thrust bearings sleeved on the insert shaft segment, one of the thrust bearings abuts between the retaining ring and the push plate, and the other thrust bearing is provided with a retaining ring on the side away from the push plate, and the retaining ring is fixedly mounted on the sleeve roller.

[0022] In this way, thrust bearings are arranged on both sides of the push plate, which can reduce the friction between the sleeve roller and the push plate during the pushing and pulling process of the push plate, thereby making the winding forming smoother.

[0023] In summary, the integrated winding device of the present invention has the advantages of reasonable structural design, and can continuously wind the formed pipe body and the socket, which is beneficial to reducing production costs, improving production efficiency, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0025] Figure 2 It is a schematic cross-sectional structural diagram of this embodiment.

[0026] Figure 3 It is a schematic diagram of the structure of the push plate and the forming roller.

[0027] Figure 4 for Figure 3 Schematic diagram of the decomposition structure.

[0028] Figure 5 Schematic diagram of the sprocket arrangement.

[0029] Figure 6 It is a schematic diagram of the overall structure of the pressure wheel mechanism.

[0030] Figure 7 It is a schematic diagram of the cross-sectional structure of the pressure wheel mechanism.

[0031] Figure 8 It is a structural schematic diagram of the pressure wheel frame.

[0032] Fig. 9 This is a schematic diagram of the disassembled structure of the pressure wheel frame. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with embodiments.

[0034] When implementing: Figure 1 to Figure 5As shown, a continuous winding forming device for a spigot-and-socket pipe comprises a winding forming mechanism and a feeding mechanism for hot extruding a continuous strip, wherein the winding forming mechanism comprises a frame 1 and a cylindrical forming cage 2, wherein the feeding mechanism is located on one side of the forming cage 2, so that the discharging end of the feeding mechanism can convey the continuous strip along the tangent of the forming cage 2; the forming cage 2 comprises a cantilever arm 21 arranged on the frame 1 in a cantilevered manner, wherein the outer end of the cantilever arm 21 has a coaxially arranged fixed disk 22, wherein a forming roller 23 parallel to the cantilever arm 21 is rotatably arranged on the fixed disk 22, wherein a plurality of the forming rollers 23 are evenly distributed along the circumference of the cantilever arm 21; and the other end of the forming roller 23 is rotatably arranged On the frame 1, there is a rotating drive mechanism 3 for driving multiple forming rollers 23 to rotate in the same direction; the forming rollers 23 include a main roller 231, and the main roller 231 is provided with an axially movable sleeve roller 232 at one end facing the frame 1, the inner diameter of the sleeve roller 232 is consistent with the diameter of the main roller 231, and the end away from the frame 1 is a connecting section 233 with a gradually decreasing diameter; there is a guide mechanism between the main roller 231 and the sleeve roller 232 that can transmit torque circumferentially, and the guide mechanism is located at the end of the main roller 231 and the sleeve roller 232 facing the frame 1; the forming cage 2 is provided with a feed drive mechanism 4 for driving the sleeve roller 232 to move axially along the main roller 231.

[0035] The feed drive mechanism 4 includes a push plate 41 coaxially sleeved outside the cantilever arm 21, and the push plate 41 has a clearance hole corresponding to the main roller 231, and the end of the sleeve roller 232 facing the frame body 1 is rotatably engaged with the clearance hole through a bearing; the frame body 1 has a linear telescopic mechanism arranged parallel to the cantilever arm 21, and the push plate 41 is connected to the telescopic end of the linear telescopic mechanism. The sleeve roller is installed on the clearance hole of the push plate through a bearing, so that the sleeve roller can rotate with the main roller and move along the axial direction of the main roller under the action of the push plate. All the sleeve rollers are connected together through the push plate, so that the linear telescopic mechanism can drive all the sleeve rollers to move together at the same time.

[0036] In order to increase the overall rigidity of the push plate 41, the push plate 41 has a first reinforcing rib extending in the radial direction and a second reinforcing rib arranged in the circumferential direction, wherein a plurality of the first reinforcing ribs are arranged in the circumferential direction of the push plate 41, and a plurality of the second reinforcing ribs are arranged in the radial direction. The first reinforcing ribs and the second reinforcing ribs can increase the rigidity of the push plate, prevent the push plate from deforming during the axial movement and affecting the smoothness of the movement, and help to extend the service life.

[0037] The push plate 41 has a push rod 42 arranged parallel to the cantilever arm 21 on one side of the frame 1. A plurality of push rods 42 are evenly arranged along the circumference of the push plate 41. The plurality of push rods 42 penetrate into the frame 1 and are installed with a push-pull plate 43. The telescopic end of the linear telescopic mechanism is connected to the push-pull plate 43. Figure 2 As shown in the figure, the linear telescopic mechanism is a hydraulic cylinder. The push-pull plate can evenly disperse the thrust or pull of the linear telescopic mechanism to the push plate through the push rods evenly arranged in the circumferential direction, so that the push plate can move more smoothly, avoid damage due to eccentric load, and help to extend the service life.

[0038] The guide mechanism is an external spline provided on the main roller 231 and an internal spline provided on the sleeve roller 232. Figure 3 and Figure 4 As shown, the sleeve roller 232 includes a forming sleeve and a first guide sleeve 234, the forming sleeve is integrally connected to the connecting section 233; the inner spline is arranged on the first guide sleeve 234, and the first guide sleeve 234 is fixedly connected to the forming sleeve. The main roller 231 includes a roller body and a second guide sleeve 235 sleeved on the roller body; the outer spline is arranged on the second guide sleeve 235, and the second guide sleeve 235 is fixed to the roller body by bolts.

[0039] In this way, the molding mechanism for continuously molded pipes with constant inner diameter in the prior art (such as the rotating roller in CN108000858A) can be improved. By installing a second guide sleeve on the main roller of the existing device, and matching the first guide sleeve and sleeve roller, and adding a push plate, a push rod and a hydraulic cylinder, the existing equipment can be transformed at a low cost, which not only reduces production costs but also improves production efficiency. In addition, the continuously wound socket and the pipe body have a higher connection strength, which can improve product quality and market competitiveness.

[0040] The sleeve roller 232 has an insert shaft section that matches the clearance hole, and the insert shaft section is inserted into the clearance hole; the insert shaft section has a relatively protruding retaining ring 236, and both sides of the clearance hole have thrust bearings 237 sleeved on the insert shaft section, one of the thrust bearings 237 abuts between the retaining ring 236 and the push plate 41, and the other thrust bearing 237 is provided with a retaining ring on the side away from the push plate 41, and the retaining ring is fixedly installed on the sleeve roller 232. In this way, the thrust bearings are provided on both sides of the push plate, which can reduce the friction between the sleeve roller and the push plate during the pushing and pulling process of the push plate, thereby making the winding molding smoother.

[0041] One end of the main roller 231 extends into the frame 1, and the rotation drive mechanism includes a driven sprocket and a driving motor arranged on the main roller 231. The output end of the driving motor is provided with a driving sprocket, and the driving sprocket and the plurality of driven sprockets are connected with chains, such as Figure 5 As shown, an auxiliary wheel is arranged between two adjacent main rollers 231, the chain passes through the driven sprocket and the auxiliary wheel in sequence, and at least one auxiliary wheel or driven sprocket is connected to the driving motor. That is, the auxiliary wheel or driven sprocket connected to the driving motor is a driving sprocket.

[0042] In the existing winding forming device, in order to adapt to the winding of pipes with different inner diameters, a groove extending radially outward is provided on the frame 1. With the cooperation of other adjustment mechanisms, all the main rollers can be uniformly expanded outward or contracted inward, thereby changing the circumscribed circle diameter of the main rollers. With respect to this structure, in specific implementation, an adjustment groove extending radially outward can be provided on the push plate 41, an adjustment block can be slidably engaged in the adjustment groove, and the clearance hole is provided through the adjustment block. In this way, it can adapt to the existing equipment for modification.

[0043] During continuous winding, in order to make the continuous strip fit better on the forming cage, a pressure wheel mechanism is usually added. Most existing pressure wheels are one-piece cylindrical structures, which are mainly used for continuous winding tubes with constant diameters. In this embodiment, the tube diameter is transitioned at the connecting section. During the winding process, the winding tube diameter of one part of the strip is smaller, and the winding tube diameter of the other part is larger. In order to make the continuous strip fit better on the connecting section and realize variable diameter winding, this embodiment adopts a pressure wheel mechanism with the following structure. Figure 6 to Figure 9 As shown, it includes a mounting frame and a pressure wheel frame 701 which is in the shape of a sheet as a whole, the mounting frame includes a support shaft 702, one end of the pressure wheel frame 701 is rotatably mounted on the support shaft 702, and the other end is rotatably provided with a pressure wheel plate 703, and the axis line of the pressure wheel plate 703 is parallel to the support shaft 702; multiple pressure wheel frames 701 are arranged side by side along the support shaft 702; the mounting frame includes side plates 704 connected to both ends of the support shaft 702, and two of the side plates 704 are tightly arranged on the outer sides of multiple pressure wheel frames 701; the side of the pressure wheel plate 703 protruding relative to the pressure wheel frame 701 in the circumferential direction of the support shaft 702 is the clamping side, and an elastic reset member 705 for rotating the pressure wheel frame 701 toward the clamping side is provided between each of the pressure wheel frames 701 and the mounting frame.

[0044] like Figure 6As shown, a limit plate 706 is connected between the two side plates 704, and the limit plate 706 is located on the side of the pressure wheel frame 701 away from the support shaft 702. The limit plate 706 has a limit bar protruding toward the pressure wheel frame 701, and the limit bar is located on the pressing side of the pressure wheel frame 701. A beam plate 707 is connected between the two side plates 704, and the beam plate 707 is located on the side of the support shaft 702 facing the pressing side; the elastic reset member 705 is a tension spring connected between the beam plate 707 and the pressure wheel frame 701.

[0045] like Figure 8 and Fig. 9 As shown, the pressure wheel frame 701 has a semicircular rolling groove, the diameter of which matches the diameter of the pressure wheel sheet 703, the pressure wheel sheet 703 can be relatively rotatably fitted in the rolling groove, and the thickness of the pressure wheel sheet 703 is consistent with the thickness of the pressure wheel frame 701. A limiting block 708 is installed on one side of the rolling groove, and the inner side of the limiting block 708 has an arc surface that is concentrically connected with the rolling groove, and the sum of the central angle of the arc surface and the central angle of the rolling groove is greater than 180°; the pressure wheel sheet 703 can be rotatably fitted on the arc surface. Specifically, a threaded hole is provided on one side of the rolling groove, and a bolt hole matching the threaded hole is provided through the limiting block 708, and the limiting block 708 is installed on the threaded hole by a bolt passing through the bolt hole. In order to make the pressure wheel piece rotate more smoothly, a rotatable ball is provided on the inner wall of the rolling groove, and a plurality of the ball is evenly distributed along the circumference of the rolling groove, and the outer circumferential surface of the pressure wheel piece 703 is matched with the plurality of the ball.

[0046] The pressure wheel structure of the present embodiment is adopted. Since the pressure wheel frame is in the shape of a sheet, multiple pressure wheel frames are arranged side by side on the support shaft, and each pressure wheel frame and the installation frame have an elastic reset part. In this way, the pressure wheel sheets on the multiple pressure wheel frames are combined into a pressure wheel. When the continuous strip is pressed against the surface of the forming cage, the reaction force borne by each pressure wheel frame is independent. As the outer diameter of the surface of the forming mold changes, the rotation angle of each pressure wheel frame relative to the support shaft is also different, so that it can adapt to forming molds of different diameters, so that the continuous strip is always in contact with the surface of the forming mold, which is beneficial to improving the forming quality of the winding tube.

[0047] The process of winding a spigot-and-socket pipe using the continuous winding forming device of this embodiment is as follows: 1. The continuous strip is pressed on the surface of the main roller by a pressing wheel mechanism. As the main roller rotates, it is continuously formed in a spiral shape around the forming cage; 2. When the length of the formed tube meets the preset length, the push plate is pushed outward by the hydraulic cylinder, and the pushing speed is controlled to be consistent with the feeding speed of the formed tube. At this time, the set roller and the tube are in synchronous movement, thus ensuring the stability and reliability of winding.

[0048] 3. After the winding length of the socket section meets the preset length, the continuous strip is cut and the end is shaped. The hydraulic cylinder retracts the sleeve roller by pulling the push plate to prepare for the next pipe winding.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous winding and forming device for a spigot-and-socket pipe, comprising a winding and forming mechanism and a feeding mechanism for hot extruding a continuous strip, the winding and forming mechanism comprising a frame (1) and a cylindrical forming cage (2), the feeding mechanism being located on one side of the forming cage (2) so that the discharge end of the feeding mechanism can convey the continuous strip along the tangent of the forming cage (2); characterized in that: The forming cage (2) comprises a cantilever arm (21) arranged on the frame (1) in a cantilevered shape, the outer end of the cantilever arm (21) has a coaxially arranged fixed disk (22), a forming roller (23) parallel to the cantilever arm (21) is rotatably arranged on the fixed disk (22), and a plurality of the forming rollers (23) are evenly distributed along the circumference of the cantilever arm (21); the other end of the forming roller (23) is rotatably arranged on the frame (1), and the frame (1) has a rotating drive mechanism (3) for driving the plurality of forming rollers (23) to rotate in the same direction; the forming rollers (23) include a main roller (231), the main rollers (232) and the main rollers (233). An axially movable sleeve roller (232) is sleeved on one end of the main roller (231) facing the frame (1); the inner diameter of the sleeve roller (232) is consistent with the diameter of the main roller (231), and the end away from the frame (1) is a connecting section (233) with a gradually decreasing diameter; a guide mechanism capable of circumferentially transmitting torque is provided between the main roller (231) and the sleeve roller (232); the guide mechanism is located at one end of the main roller (231) and the sleeve roller (232) facing the frame (1); and a feed drive mechanism (4) for driving the sleeve roller (232) to move axially along the main roller (231) is provided on the forming cage (2).

2. The continuous winding forming device for the spigot-and-socket pipe according to claim 1, characterized in that: The feed drive mechanism (4) comprises a push plate (41) coaxially sleeved outside the cantilever arm (21), the push plate (41) having a clearance hole arranged corresponding to the main roller (231), and one end of the sleeve roller (232) facing the frame body (1) is rotatably engaged with the clearance hole through a bearing; the frame body (1) has a linear telescopic mechanism arranged parallel to the cantilever arm (21), and the push plate (41) is connected to the telescopic end of the linear telescopic mechanism.

3. The continuous winding forming device for the spigot-and-socket pipe according to claim 2, characterized in that: The push plate (41) has a first reinforcing rib extending in a radial direction and a second reinforcing rib arranged in a circumferential direction, a plurality of the first reinforcing ribs are arranged in a circumferential direction of the push plate (41), and a plurality of the second reinforcing ribs are arranged in a radial direction.

4. The continuous winding forming device for the spigot-and-socket pipe according to claim 2, characterized in that: The push plate (41) has a push rod (42) arranged parallel to the cantilever arm (21) on one side of the push plate (41) facing the frame (1), and a plurality of push rods (42) are evenly distributed along the circumference of the push plate (41). The plurality of push rods (42) penetrate into the frame (1) and are installed with a push-pull plate (43); the telescopic end of the linear telescopic mechanism is connected to the push-pull plate (43).

5. The continuous winding forming device for the spigot-and-socket type pipe according to claim 4, characterized in that: The linear telescopic mechanism is a hydraulic cylinder.

6. The continuous winding forming device for the spigot-and-socket pipe according to claim 2, characterized in that: The guide mechanism is an external spline arranged on the main roller (231) and an internal spline arranged on the sleeve roller (232).

7. The continuous winding forming device for a spigot-and-socket type pipe according to claim 6, characterized in that: The sleeve roller (232) comprises a forming sleeve and a first guide sleeve (234), the forming sleeve being integrally connected to the connecting section (233); the internal spline is arranged on the first guide sleeve (234), and the first guide sleeve (234) is fixedly connected to the forming sleeve.

8. The continuous winding forming device for a spigot-and-socket type pipe according to claim 6, characterized in that: The main roller (231) comprises a roller body and a second guide sleeve (235) sleeved on the roller body; the external spline is arranged on the second guide sleeve (235), and the second guide sleeve (235) is fixed to the roller body by means of bolts.

9. The continuous winding forming device for a spigot-and-socket pipe according to claim 1, characterized in that: One end of the main roller (231) extends into the frame (1); the rotation drive mechanism (3) comprises a driven sprocket (31) and a drive motor arranged on the main roller (231); a driving sprocket (32) is arranged at the output end of the drive motor; and a chain (33) is connected to the driving sprocket (32) and the plurality of driven sprockets (31).

10. The continuous winding forming device for a spigot-and-socket type pipe according to claim 2, characterized in that: The sleeve roller (232) has an insert shaft section that matches the clearance hole, and the insert shaft section is inserted into the clearance hole; the insert shaft section has a relatively protruding retaining ring (236), and both sides of the clearance hole have thrust bearings (237) sleeved on the insert shaft section, one of the thrust bearings (237) abuts between the retaining ring (236) and the push plate (41), and the other thrust bearing (237) is provided with a retaining ring on the side away from the push plate (41), and the retaining ring is fixedly mounted on the sleeve roller (232).

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