Forming process of large-diameter corrugated pipe sealing ring

Abstract

The present application relates to the technical field of bellows processing, and discloses a forming process for a sealing ring of a large-diameter bellows, which comprises adjusting the spacing of two corresponding bellows supporting rollers in a first supporting roller frame and a second supporting roller frame in the bellows supporting roller frame according to a preset spacing adjustment strategy; a die head fixedly arranged on a discharge port of a sealing ring extrusion mechanism is aligned with a position to be processed of the large-diameter bellows, the die head is provided with a discharge through hole in the direction of the discharge port, and a vertical flow guide groove is arranged on the die head and communicates with the discharge through hole; the bellows heating mechanism is also aligned with the position to be processed of the large-diameter bellows; a first motor on the first supporting roller frame is started to drive one of the bellows supporting rollers to rotate; the sealing ring extrusion mechanism and the bellows heating mechanism are started, and the position to be processed of the large-diameter bellows is sequentially heated by the bellows heating mechanism and adhered with sealing material by the sealing ring extrusion mechanism in the process of rotation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of corrugated pipe processing, in particular to a large-diameter corrugated pipe sealing ring forming process. BACKGROUND

[0002] In the field of industrial manufacturing, especially in the construction of pipeline systems, large-diameter corrugated pipes, as key components, play an indispensable role in the oil, chemical, marine and aerospace industries due to their excellent flexibility, corrosion resistance and pressure-bearing performance. Given the need for frequent splicing in practical applications, the challenge of ensuring good sealing between large-diameter corrugated pipes has become increasingly prominent.

[0003] Traditional solutions usually rely on the addition of sealing rings and the use of special fixing parts to achieve sealing, which has certain effectiveness but also exposes several limitations:

[0004] 1. The use of additional sealing rings and fixing parts undoubtedly increases the difficulty of assembly, lengthens the production timeline, and inevitably raises the overall manufacturing cost.

[0005] 2. Such sealing rings locked by fixing parts may experience stress concentration during long-term service, leading to structural distortion and even failure, which seriously weakens the sealing efficiency and service life of large-diameter corrugated pipes.

[0006] Therefore, there is an urgent need for a large-diameter corrugated pipe sealing ring forming process that can firmly combine the sealing ring to the surface of the large-diameter corrugated pipe during the production process, achieving the integration of the large-diameter corrugated pipe and the sealing ring, thereby solving the problems of complex assembly, heavy economic burden and shortened service life caused by reliance on fixing devices under the current technical framework. SUMMARY

[0007] One of the purposes of the present application is to provide a large-diameter corrugated pipe sealing ring forming process that can firmly combine the sealing ring to the surface of the large-diameter corrugated pipe during the production process, achieving the integration of the large-diameter corrugated pipe and the sealing ring, thereby solving the problems of complex assembly, heavy economic burden and shortened service life caused by reliance on fixing devices under the current technical framework.

[0008] In order to achieve the above purpose, a large-diameter corrugated pipe sealing ring forming process is provided, comprising the following steps:

[0009] S1, determining the diameter value of the large-diameter corrugated pipe to be processed;

[0010] S2, according to the determined diameter value of the large-diameter corrugated pipe to be processed, adjusting the distance between the two corrugated pipe support rollers corresponding to the first support roller frame and the second support roller frame in the adjustable distance corrugated pipe support roller frame respectively according to the preset distance adjustment strategy;

[0011] S3、in the respective adjustment of the first support roller frame and the second support roller frame each corresponding to two corrugated pipe support roller spacing after the adjustment, the processed large diameter corrugated pipe ends are placed horizontally on the two corrugated pipe support roller of the first support roller frame, and the two corrugated pipe support roller of the second support roller frame respectively;

[0012] S4, the sealing ring extrusion molding machine in the sealing ring extrusion mechanism in the discharge port on the fixed setting of the die head corresponding to the processed position of the large diameter corrugated pipe to be processed, the die head is provided with a corresponding discharge hole along the direction of the discharge port, and the die head is provided with a vertical flow guide groove communicated with the discharge hole;

[0013] S5, the corrugated pipe heating mechanism in the sealing ring extrusion molding machine is also aligned with the corresponding processing position of the large diameter corrugated pipe to be processed;

[0014] S6, start the first motor on the first support roller frame, drive one of the corrugated pipe support roller on the first support roller frame to rotate;

[0015] S7, start the sealing ring extrusion mechanism and the corrugated pipe heating mechanism, in the process of rotating the large diameter corrugated pipe to be processed, the processed position is heated in turn by the corrugated pipe heating mechanism and adhered by the sealing ring extrusion mechanism;

[0016] The sealing material adhered by the sealing ring extrusion mechanism includes the following steps:

[0017] The sealing ring extrusion mechanism is heated by the sealing material and is extruded through the discharge port and the discharge hole and adhered to the processed position;

[0018] With the rotation of the large diameter corrugated pipe to be processed, the sealing material with the same shape as the discharge hole will be extruded by the vertical flow guide groove, so that the sealing material changes from the same shape as the discharge hole to the same shape as the vertical flow guide groove and excludes the air bubbles in the sealing material.

[0019] The technical principle and effect of the scheme: in the scheme, by measuring the diameter of the large diameter corrugated pipe to be processed, the first support roller frame and the second support roller frame in the adjustable spacing corrugated pipe support roller frame are adjusted according to the preset spacing adjustment strategy to adjust the spacing of the two corrugated pipe support rollers corresponding to each other, so as to ensure that the corrugated pipe maintains stable position during processing, which is the basis of the whole process.

[0020] The die head and the corrugated pipe heating mechanism of the sealing ring extrusion molding machine are accurately aligned with the processed position, which ensures that the subsequent heating and extrusion operation can be accurately applied to the required area.

[0021] The first support roller frame drives the corrugated pipe to move, and the sealing ring extrusion mechanism and the corrugated pipe heating mechanism are opened. In this way, during the rotation of the corrugated pipe, each processing position will be sequentially subjected to heating and extrusion treatment, forming a tightly fitted sealing layer. During the extrusion process, the sealing material is first extruded through the discharge hole of the die, and then changes shape under the action of the vertical flow guide groove, while expelling the internal air, ensuring that the formed sealing ring is bubble-free, improving the sealing quality and stability. That is, the wave pipe heating mechanism heats the processing position on the large-diameter corrugated pipe where the sealing ring is to be set. With rotation, the processing position heated by the corrugated pipe heating mechanism will rotate to the discharge port of the sealing ring extrusion mechanism. At this time, a die is provided on the discharge port, and the discharge hole of the die is in communication with the discharge port. At this time, the sealing ring extrusion mechanism will heat the sealing ring material and be extruded out through the discharge port and the discharge hole and adhere to the just-heated processing position of the large-diameter corrugated pipe. Since the corresponding vertical flow guide groove is connected to the discharge hole, and the large-diameter corrugated pipe to be processed is rotating, the sealing material with the same shape as the discharge hole will be extruded by the vertical flow guide groove, so that the sealing material changes from the same shape as the discharge hole to the same shape as the vertical flow guide groove and expels the bubbles in the sealing material. Limit the amount of sealing ring material on the large-diameter corrugated pipe, and the vertical flow guide groove can also limit and extrude the excess sealing ring material to the left and right, so that the bubbles in the sealing ring material adhered to the large-diameter corrugated pipe are extruded, thereby realizing the exclusion of bubbles in the sealing material.

[0022] 1. The vertical flow guide groove on the die changes the shape of the sealing ring material adhered to the large-diameter corrugated pipe to be processed from the same shape as the discharge hole to the same shape as the vertical flow guide groove, and the vertical flow guide groove also extrudes the sealing ring material in multiple directions, thereby realizing the exclusion of bubbles in the sealing ring, further improving the connection stability and firmness between the sealing ring and the large-diameter corrugated pipe.

[0023] 2. The corrugated pipe heating mechanism preheats the corrugated pipe locally, and the sealing ring extrusion mechanism precisely extrudes the sealing ring material to the heated part, ensuring good adhesion between the sealing ring and the corrugated pipe and improving the sealing quality and durability.

[0024] 3. Through the cooperation between the adjustable distance corrugated pipe supporting roller frame and the sealing ring extrusion molding machine, seamless fusion of the sealing ring and the large-diameter corrugated pipe is realized at the initial stage of production. Compared with the prior art, the sealing ring needs to be fixed by a fixing device, and after installation is completed, it only needs to be simply docked with the corrugated pipe to put into use, greatly improving the speed and convenience of assembly, and significantly reducing the complexity of assembly work. Moreover, since the sealing ring and the corrugated pipe form a complete unit, not only the balanced distribution of the sealing ring under pressure is guaranteed, but also the service life of the sealing ring is greatly prolonged, thereby reducing the overall manufacturing cost. That is, the sealing ring can be firmly combined to the surface of the large-diameter corrugated pipe at the production link, realizing the integration of the large-diameter corrugated pipe and the sealing ring, thereby solving the problems of complicated assembly, heavy economic burden and shortened service life caused by relying on the fixing device under the current technical framework.

[0025] Further, the first supporting roller frame and the second supporting roller frame each include a supporting roller frame body, left and right sides of an upper end surface of the supporting roller frame body are each provided with a rolling support mechanism, the rolling support mechanism includes tracks provided on the left and right sides of the upper end surface of the supporting roller frame body, the tracks are each provided with a sliding block in sliding fit with the track, the two sliding blocks are fixedly connected through a fixed plate, left and right sides of an upper end surface of the fixed plate are provided with supporting frames, a rotating shaft is provided between the two supporting frames, and a corrugated pipe supporting roller is sleeved on the rotating shaft;

[0026] A fixed block is provided on a lower end surface of the fixed plate, a rotating hole for the rotating rod to extend into is formed in a left end surface of the fixed block, an inner wall of the rotating hole is provided with an internal thread, and an external thread is formed in an outer surface of the rotating rod;

[0027] An outermost side of the upper end surface of the supporting roller frame body is provided with a fixed seat for the rotating rod to extend into;

[0028] A first motor is provided on a lower end surface of the fixed plate of one of the rolling support mechanisms of the first supporting roller frame, the first motor is arranged directly below the rotating shaft, a first gear is sleeved on a motor shaft of the first motor, a second gear is sleeved on the rotating shaft, an installation through hole is formed in the fixed plate directly below the second gear, and the first gear and the second gear are driven through a chain.

[0029] Beneficial effects: the fixed block can move back and forth on the rotating rod by rotating the rotating rod, the positions of the sliding blocks on the tracks can be changed, and the distance between the two groups of supporting roller frames can be adjusted to adapt to corrugated pipes of different diameters.

[0030] Only one of the four rollers on the two support roller frames is controlled by the first motor. Specifically, the first motor is installed at the lower part of the fixed plate of one of the rolling support mechanisms, and a first gear is installed on the motor shaft. The first gear is connected to a second gear on the rotating shaft through a chain. When the first motor is started, the rotating shaft is driven to rotate through the chain transmission, thereby rotating the rollers and further driving the corrugated pipe to rotate.

[0031] 1. The distance between the two rollers on each support roller frame can be adjusted by rotating the rotating rod, which can accommodate corrugated pipes of different diameters and expand the application range of the device.

[0032] 2. The introduction of the first motor and chain transmission mechanism allows precise control of the speed and direction of the rotating shaft through electric means, thereby controlling the rotation speed of the corrugated pipe, which is beneficial to automation production and efficiency improvement.

[0033] 3. The threaded connection design of the rotating rod with the fixed block and the fixed seat makes it simple and fast to adjust the distance of the support roller frame, and is also beneficial to daily maintenance and troubleshooting.

[0034] Further, the preset distance adjustment strategy is:

[0035] S20. According to the diameter value of the large-diameter corrugated pipe to be processed, rotate the rotating rod of one of the rolling support mechanisms on the left and right sides of the support roller frame body;

[0036] S21. The rotation of the rotating rod will drive the fixed block to move in the length direction of the rotating rod;

[0037] S22. The movement of the fixed block in the length direction of the rotating rod will drive the fixed plate and the two sliding blocks arranged on the lower end surface of the fixed plate to move in the length direction of the rotating rod;

[0038] S23. The movement of the fixed plate in the length direction of the rotating rod will drive the two support frames on the fixed plate to move in the length direction of the rotating rod;

[0039] S24. The movement of the two support frames in the length direction of the rotating rod will drive the corrugated pipe support rollers between the two support frames to move in the length direction of the rotating rod;

[0040] S25. Repeat S20 to S24 to adjust the position of the corrugated pipe support rollers on the other rolling support mechanism on the support roller frame body until the distance between the corrugated pipe support rollers of the two rolling support mechanisms on the support roller frame body meets the requirements of supporting the large-diameter corrugated pipe to be processed.

[0041] Beneficial effects: Through meticulous adjustment steps, the spacing of the bellows support roller frame can be accurately matched with bellows of different diameters, providing stable support during processing and avoiding product quality problems caused by unstable support.

[0042] This strategy allows quick and convenient adjustment of the spacing of the support roller frame, which means that it can quickly respond to different bellows sizes, greatly improving the flexibility and adaptability of the production line.

[0043] Precise spacing adjustment helps maintain the stability of the bellows during processing, reducing the risk of seal ring deformation or damage on the bellows caused by improper support, ensuring the quality of the finished product.

[0044] Further, a rotating handle is arranged on the end of the rotating rod away from the fixed block.

[0045] Beneficial effects: The arrangement of the rotating handle can make it easier to adjust the spacing between the rollers.

[0046] Further, in S7, when the seal ring extrusion mechanism and the bellows heating mechanism are started, the corresponding rotation logic of the large-diameter bellows to be processed during rotation is:

[0047] According to the started seal ring extrusion mechanism and the bellows heating mechanism, the seal ring material ratio in the seal ring extrusion mechanism, the extrusion speed of the seal ring material being extruded from the discharge hole, and the heating temperature of the bellows heating mechanism are collected in real time;

[0048] According to the collected seal ring material ratio in the seal ring extrusion mechanism, the extrusion speed of the seal ring material being extruded from the discharge hole, and the heating temperature of the bellows heating mechanism, and the determined diameter value of the large-diameter bellows to be processed in S1, the corresponding bellows preset speed is retrieved from the bellows speed table in the database, and the speed of the large-diameter bellows to be processed is controlled to reach the bellows preset speed through the first motor.

[0049] The bellows speed table is the bellows preset speed corresponding to each seal ring material ratio, extrusion speed, heating temperature, and diameter value.

[0050] Beneficial effects: When the sealing ring extrusion mechanism and the corrugated pipe heating mechanism are activated, the system continuously monitors key parameters such as the ratio of sealing ring materials, extrusion speed, and heating temperature to obtain real-time feedback of the current processing conditions. The collected data are compared with a known corrugated pipe rotation speed table, which is a database that comprehensively considers various variables such as material properties, processing speed, heating conditions, and corrugated pipe diameter, and stores optimal corrugated pipe rotation speed recommendations for different situations. Based on the comparison results, the system selects the most appropriate corrugated pipe preset rotation speed and controls the first motor to make the rotation speed of the large-diameter corrugated pipe to be processed reach this ideal value. This process ensures that the corrugated pipe is in the optimal operating state throughout the entire processing period, thereby maximizing processing efficiency and product quality.

[0051] 1. By adjusting the rotation speed of the corrugated pipe in real time, the processing process can be more accurately controlled, reducing processing defects caused by inappropriate rotation speed, and improving the consistency and reliability of the finished product.

[0052] 2. Reasonably allocate processing resources to avoid excessive heating or insufficient extrusion, which can ensure processing quality and effectively save energy and raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 Flowchart of large-diameter corrugated pipe sealing ring forming process in embodiment one of the present application.

[0054] Figure 2 Structural schematic diagram of the sealing ring extrusion forming machine in embodiment one of the present application.

[0055] Figure 3 Enlarged structural schematic diagram of A in embodiment one of the present application. Figure 1

[0056] Figure 4 Front view of the die in embodiment one of the present application.

[0057] Figure 5 Overall structural schematic diagram of the first support roller frame in embodiment one of the present application. DETAILED DESCRIPTION

[0058] The following will be further described in detail through specific embodiments:

[0059] The markers in the drawings of the specification include: support roller frame body 1, track 2, sliding block 3, fixed plate 4, support frame 5, rotating shaft 6, roller 7, rotating rod 8, fixed seat 9, mounting through hole 10, sealing ring extrusion forming machine 11, discharge pipe 12, die 13, vertical flow guide groove 14, discharge through hole 15.

[0060] Embodiment one ​

[0061] The large-diameter corrugated pipe sealing ring forming process basically as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , comprising the following steps:

[0062] S1, determine the caliber value of the large-diameter corrugated pipe to be processed;

[0063] S2, according to the caliber value of the large-diameter corrugated pipe to be processed, the first support roller frame and the second support roller frame in the adjustable pitch corrugated pipe support roller frame are respectively adjusted according to the preset pitch adjustment strategy. The pitch of the two corrugated pipe support roller wheels 7 corresponding to each other;

[0064] As shown in Figure 5 , the adjustable pitch corrugated pipe support roller frame includes a first support roller frame and a second support roller frame, and the first support roller frame and the second support roller frame each include a support roller frame body 1, and the left and right sides of the upper end surface of the support roller frame body 1 are provided with rolling support mechanisms;

[0065] The rolling support mechanism includes tracks 2 arranged on the front and rear sides of the upper end surface of the support roller frame body 1, and the tracks 2 are fixedly connected with the upper end surface of the support roller frame through bolts and nuts.

[0066] The tracks 2 are each provided with a sliding block 3 that slides with the track 2;

[0067] The two sliding blocks 3 are fixedly connected by a fixed plate 4, and the front and rear sides of the upper end surface of the fixed plate 4 are provided with support frames 5, which are fixedly welded to the upper end surface of the fixed plate 4 in this embodiment.

[0068] A rotating shaft 6 is arranged between the two support frames 5, and a roller 7 is arranged on the rotating shaft 6;

[0069] The lower end surface of the fixed plate 4 is provided with a fixed block, which is fixedly welded to the fixed plate 4 in this embodiment.

[0070] A rotating hole is formed in the left end surface of the fixed block for the rotating rod 8 to extend into, an inner thread is arranged on the inner wall of the rotating hole, and an outer thread is arranged on the outer surface of the rotating rod 8; the rotating rod 8 and the fixed block are threadedly connected through the outer thread on the rotating rod 8 and the inner thread on the fixed block.

[0071] The outermost side of the upper end surface of the support roller frame body 1 is provided with a fixed seat 9 for the rotating rod 8 to extend into; in this embodiment, the fixed seat 9 is fixedly welded to the upper end surface of the support roller frame body 1, and the hole in the fixed seat 9 for the rotating rod 8 to extend into is at the same height as the rotating hole in the fixed block.

[0072] The lower end surface of the fixed plate 4 of one of the rolling support mechanisms of the first support roller frame is provided with a first motor, the first motor is arranged directly below the rotating shaft 6, a first gear is sleeved on the motor shaft of the first motor, a second gear is sleeved on the rotating shaft 6, a mounting through hole 10 is formed on the fixed plate 4 directly below the second gear, and the first gear and the second gear are driven by a chain.

[0073] The sealing ring extrusion molding machine 11 comprises a sealing ring extrusion mechanism for heating and extruding sealing ring materials and a corrugated pipe heating mechanism for preheating large-diameter corrugated pipes.

[0074] A die head 13 is fixedly arranged on the discharge port of the sealing ring extrusion mechanism, the die head 13 is provided with a discharge through hole 15 along the direction of the discharge port, and a vertical flow guide groove 14 is arranged on the die head 13 and communicates with the discharge through hole 15. In this embodiment, the discharge pipe 12 corresponding to the discharge port is fixed with the die head 13 by screws.

[0075] The preset spacing adjustment strategy is:

[0076] S20, according to the diameter value of the large-diameter corrugated pipe to be processed, rotating the rotating rod 8 of one of the rolling support mechanisms on the left and right sides of the support roller frame body 1;

[0077] S21, the rotation of the rotating rod 8 drives the fixed block to move in the length direction of the rotating rod 8;

[0078] S22, the movement of the fixed block in the length direction of the rotating rod 8 drives the fixed plate 4 and the two sliding blocks 3 arranged on the lower end surface of the fixed plate 4 to move in the length direction of the rotating rod 8;

[0079] S23, the movement of the fixed plate 4 in the length direction of the rotating rod 8 drives the two support frames 5 on the fixed plate 4 to move in the length direction of the rotating rod 8;

[0080] S24, the movement of the two support frames 5 in the length direction of the rotating rod 8 drives the corrugated pipe support roller 7 between the two support frames 5 to move in the length direction of the rotating rod 8;

[0081] S25, repeating S20 to S24 to adjust the position of the corrugated pipe support roller 7 on the other rolling support mechanism of the support roller frame body 1, until the spacing of the corrugated pipe support rollers 7 of the two rolling support mechanisms on the support roller frame body 1 meets the requirements of supporting the large-diameter corrugated pipe to be processed.

[0082] In the embodiment, in order to make the rotation of the rotating rod 8 more labor-saving, a rotating handle is arranged on the end of the rotating rod 8 away from the fixed block.

[0083] S3, after adjusting the distance between the two corrugated pipe support rollers 7 corresponding to the first support roller frame and the second support roller frame respectively, the two ends of the large-diameter corrugated pipe to be processed are respectively placed horizontally on the two corrugated pipe support rollers 7 of the first support roller frame and the two corrugated pipe support rollers 7 of the second support roller frame;

[0084] S4, the die head 13 fixedly arranged on the discharge port of the sealing ring extrusion forming mechanism in the sealing ring extrusion forming machine 11 is aligned with the corresponding processing position of the large-diameter corrugated pipe to be processed, the die head 13 is provided with a corresponding discharge hole 15 along the direction of the discharge port, and the die head 13 is provided with a vertical flow guide groove 14 in communication with the discharge hole 15;

[0085] S5, the corrugated pipe heating mechanism in the sealing ring extrusion forming machine 11 is also aligned with the corresponding processing position of the large-diameter corrugated pipe to be processed;

[0086] S6, start the first motor on the first support roller frame to drive one of the corrugated pipe support rollers 7 on the first support roller frame to rotate;

[0087] S7, start the sealing ring extrusion forming mechanism and the corrugated pipe heating mechanism, in the process of rotating the large-diameter corrugated pipe to be processed, the processing position is sequentially heated by the corrugated pipe heating mechanism and adhered by the sealing material of the sealing ring extrusion forming mechanism;

[0088] The sealing material adhered by the sealing ring extrusion forming mechanism includes the following steps:

[0089] The sealing ring extrusion forming mechanism heats the sealing material and extrudes and adheres it to the processing position through the discharge port and the discharge hole 15;

[0090] As the large-diameter corrugated pipe to be processed rotates, the sealing material with the same shape as the discharge hole 15 is extruded by the vertical flow guide groove 14, so that the sealing material changes from the same shape as the discharge hole 15 to the same shape as the vertical flow guide groove 14 and the air bubbles in the sealing material are excluded.

[0091] In S7, when the sealing ring extrusion forming mechanism and the corrugated pipe heating mechanism are started, the corresponding rotation logic of the large-diameter corrugated pipe to be processed in the rotating process is:

[0092] According to the sealing ring extrusion mechanism and the bellows heating mechanism after starting, the sealing ring material ratio corresponding to the sealing ring extrusion mechanism, the extrusion speed corresponding to the sealing ring material being extruded from the discharge through hole 15, and the heating temperature corresponding to the bellows heating mechanism are collected in real time;

[0093] According to the sealing ring material ratio corresponding to the sealing ring extrusion mechanism, the extrusion speed corresponding to the sealing ring material being extruded from the discharge through hole 15, and the heating temperature corresponding to the bellows heating mechanism collected, and the diameter value of the large-diameter bellows to be processed determined in S1, the corresponding bellows preset speed is retrieved from the bellows speed table corresponding in the database, and the speed of the large-diameter bellows to be processed reaches the bellows preset speed through the control of the first motor.

[0094] The bellows speed table is the bellows preset speed corresponding to each sealing ring material ratio, extrusion speed, heating temperature, and diameter value. In this embodiment, a large number of bellows preset speeds corresponding to different sealing ring material ratios, extrusion speeds, heating temperatures, and diameter values are stored in the database.

[0095] The above is only an embodiment of the present application, and the common knowledge of specific structures and characteristics in the scheme is described too much. The ordinary skilled person in the art knows all the ordinary technical knowledge in the field of the application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date. The ordinary skilled person in the art can improve and implement the present scheme based on their own ability under the guidance of the present application. Some typical known structures or known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be noted that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be considered as the protection scope of the present application. The scope of protection claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. The large-diameter bellows seal forming process is characterized by: The following steps are involved: S1. Determine the diameter of the large-diameter corrugated pipe to be processed; S2. Based on the determined caliber of the large-diameter corrugated pipe to be processed, adjusting the spacing between the two corresponding corrugated pipe support rollers of the first support roller stand and the second support roller stand in the adjustable-spacing corrugated pipe support roller stand according to a preset spacing adjustment strategy; S3. After adjusting the spacing between the two corrugated pipe support rollers corresponding to the first support roller stand and the second support roller stand, the two ends of the large-diameter corrugated pipe to be processed are horizontally placed on the two corrugated pipe support rollers of the first support roller stand and the two corrugated pipe support rollers of the second support roller stand, respectively. S4. Aligning a die head fixedly mounted on a discharge port of a sealing ring extrusion mechanism in a sealing ring extrusion molding machine with a position corresponding to the large-diameter corrugated pipe to be processed, wherein the die head is provided with a corresponding discharge through-hole along the direction of the discharge port, and a vertical guide groove connected to the discharge through-hole is provided on the die head; S5, aligning the bellows heating mechanism in the sealing ring extrusion molding machine with the processing position corresponding to the large-diameter bellows to be processed; S6. Start the first motor on the first support roller frame to drive one of the bellows support rollers on the first support roller frame to rotate; S7, starting the sealing ring extrusion mechanism and the bellows heating mechanism, so that when the large-diameter bellows to be processed is rotating, the processing position is sequentially heated by the bellows heating mechanism and adhered with sealing material by the sealing ring extrusion mechanism; The sealing material is adhered by the sealing ring extrusion mechanism, comprising the following steps: The sealing ring extrusion mechanism heats the sealing material and extrudes it through the discharge port and the discharge through hole and adheres it to the position to be processed; As the large-diameter corrugated pipe to be processed rotates, the sealing material with the same shape as the discharge hole will be squeezed by the vertical guide groove, so that the sealing material changes from the same shape as the discharge hole to the same shape as the vertical guide groove and eliminates bubbles in the sealing material.

2. The large-diameter bellows sealing ring forming process according to claim 1 is characterized in that: The first support roller frame and the second support roller frame each include a support roller frame body, and rolling support mechanisms are provided on the left and right sides of the upper end surface of the support roller frame body, and the rolling support mechanism includes tracks provided on the front and rear sides of the upper end surface of the support roller frame body, and sliders are provided on the tracks that slide with the tracks, and the two sliders are fixedly connected by a fixing plate, and support frames are provided on the front and rear sides of the upper end surface of the fixing plate, and a rotating shaft is provided between the two support frames, and a bellows supporting roller is sleeved on the rotating shaft; The lower end surface of the fixing plate is provided with a fixing block, the left end surface of the fixing block is provided with a rotating hole for the rotating rod to extend into, the inner wall of the rotating hole is provided with an internal thread, and the outer surface of the rotating rod is provided with an external thread; A fixing seat for the rotating rod to extend into is provided on the outermost side of the upper end surface of the supporting roller frame body; A first motor is provided on the lower end surface of the fixed plate of one of the rolling support mechanisms of the first support roller frame. The first motor is arranged directly below the rotating shaft. A first gear is sleeved on the motor shaft of the first motor. A second gear is sleeved on the rotating shaft. A mounting through hole is provided on the fixed plate directly below the second gear. The first gear and the second gear are driven by a chain.

3. The large-diameter bellows sealing ring forming process according to claim 2 is characterized in that: The preset spacing adjustment strategy is: S20, rotating a rotating rod of one of the rolling support mechanisms on the left and right sides of a supporting roller frame body according to the diameter of the large-diameter corrugated pipe to be processed; S21, the rotation of the rotating rod will drive the fixed block to move in the length direction of the rotating rod; S22, the fixed block moves in the length direction of the rotating rod, which drives the fixed plate and the two sliders provided on the lower end surface of the fixed plate to move in the length direction of the rotating rod; S23, the movement of the fixed plate in the length direction of the rotating rod will drive the two support frames on the fixed plate to move in the length direction of the rotating rod; S24, the movement of the two support frames in the length direction of the rotating rod will drive the bellows support roller between the two support frames to move in the length direction of the rotating rod; S25. Repeat S20 to S24 to adjust the position of the corrugated pipe support roller on another rolling support mechanism on a certain support roller frame body until the spacing between the corrugated pipe support rollers of the two rolling support mechanisms on a certain support roller frame body meets the requirements for supporting the large-diameter corrugated pipe to be processed.

4. The large-diameter bellows sealing ring forming process according to claim 3 is characterized in that: A rotating handle is provided on one end of the rotating rod away from the fixed block.

5. The large-diameter bellows sealing ring forming process according to claim 4 is characterized in that: When the sealing ring extrusion mechanism and the bellows heating mechanism are started in S7, the corresponding rotation logic of the large-diameter bellows to be processed during the rotation process is: According to the activated sealing ring extrusion mechanism and the bellows heating mechanism, the sealing ring material ratio corresponding to the sealing ring extrusion mechanism, the extrusion speed corresponding to the sealing ring material being extruded from the discharge through hole, and the heating temperature corresponding to the bellows heating mechanism are collected in real time; According to the collected sealing ring material ratio corresponding to the sealing ring extrusion mechanism, the extrusion speed corresponding to the sealing ring material being extruded from the discharge through hole, the heating temperature corresponding to the bellows heating mechanism, and the caliber value of the large-diameter bellows to be processed determined in S1, the corresponding bellows preset speed is retrieved from the corresponding bellows speed table in the database, and the speed of the large-diameter bellows to be processed reaches the bellows preset speed by controlling the first motor; The bellows speed table is a preset bellows speed table corresponding to each sealing ring material ratio, extrusion speed, heating temperature and caliber value.

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