Pipeline trenchless repair light-curing hose rolling device

Abstract

The present invention discloses a pipeline trenchless repair light-curing hose rolling device, including a conveying mechanism for conveying a dry material hose, a pressing roller group and a rolling roller are sequentially arranged on the conveying mechanism along the conveying direction of the dry material hose, and the pressing roller group firstly keeps stationary to roll the dry material hose of the first batch during the process of clamping and injecting glue to the dry material hose of the next batch, and then reciprocates relative to the stationary dry material hose to roll, and during the reciprocating movement of the rolling roller, the distance between the rolling roller and the dry material hose is adjusted at least once to shorten the distance between the two. The present invention not only realizes multiple rolling of the hose, but also gradually increases the rolling intensity of the hose, avoiding the hose being crushed and damaged due to one-time rolling and molding by the rolling roller, and the multiple rolling of the hose by the rolling roller will not affect the processing time of the entire hose.

Description

Technical Field

[0001] The invention relates to the field of trenchless pipeline repair, and in particular to a light-curing hose rolling device for trenchless pipeline repair. Background Art

[0002] At present, the manufacturing of UV-curable hoses mainly consists of two production lines, namely dry material production and glue injection. With the continuous advancement of science and technology, these two production lines have been able to be merged into one to form a complete automated production line. For example, a Chinese patent records a patent document with publication number CN116330720A, entitled A UV-curable pipeline repair lining hose and its winding production process. This technology combines the dry material production method of reinforced glass fiber winding with the vacuum glue injection method. The loading material is a dry reinforced glass fiber roll, and the unloading material is the finished hose.

[0003] The above-disclosed technical process includes three steps: winding tube making - vacuum glue injection - stacking packaging. The vacuum glue injection is specifically divided into a vacuum unit, a glue injection unit, and a rolling unit; the specific process steps are: S1. The two pairs of pressing rollers of the vacuum unit are closed to press the dry material, so that the dry material hose between the two pairs of pressing rollers is in a sealed state; S2. The tool cutting module cuts the outer film and the anti-seepage film at one end of the dry material hose in turn, and the vacuum pump of the appropriate size is automatically connected and inserted into the vacuum port to vacuum the dry material, so that the inner and outer films of the dry material hose between the two pairs of pressing rollers are in a vacuum state; S3. According to actual production needs, the knife The cutting module cuts the outer membrane and the anti-seepage membrane of the dry material hose at regular intervals, automatically inserts a glue injection head of appropriate size, injects the configured resin into the dry material in a quantitative manner, and injects the glue liquid in combination with vacuum negative pressure; S4, after glue injection, the tape is automatically sealed to bond and seal the cut damaged parts; S5, enters the rolling unit, and the rolling roller rolls the glue-injected hose to achieve uniform impregnation of the glue liquid. According to actual production needs, the gap between the rolling rollers is changed to control the thickness of the hose, and the end is sealed to form a finished hose.

[0004] According to the current records of the process, it can be known that after the glue is filled, the hose is passed through an adjusted rolling roller to achieve uniform spread of the glue and control of the thickness. The rolling roller only passively contacts the hose to exert force on it, and the hose is rolled after passing through the rolling roller. The rolling of the hose by the rolling roller is one-time and cannot achieve multiple rounds of rolling of the hose. The gap of the rolling roller is directly adjusted to the required thickness of the hose, and the hose is directly rolled to the target thickness from the moment the glue is filled. If there is no buffer during the whole process, but it is directly rolled to become thinner, it is very likely to cause the hose to be rolled and ruptured. Therefore, it is best for the rolling roller to go through multiple rounds and gradually apply rolling pressure until the hose is rolled to the target thickness. This is a safe and ideal way. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a light-curing hose rolling device for trenchless repair of pipelines.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipeline trenchless repair light-curing hose rolling device, comprising a conveying mechanism for conveying a dry material hose, a clamping roller group and a rolling roller are sequentially arranged on the conveying direction of the dry material hose, and during the process of the clamping roller group clamping and injecting glue into the first batch and the next batch of dry material hoses, the rolling roller first remains fixed to roll the first batch of dry material hoses, and then reciprocates relative to the fixed dry material hose to roll, and during the reciprocating motion of the rolling roller, the distance between it and the dry material hose is adjusted at least once to shorten the distance between the two.

[0007] Preferably, the top of the conveying mechanism is provided with two liner seats fixed on both sides thereof, wherein a threaded rod is rotatably mounted between the two liner seats, and a guide column is fixed between the other two liner seats, and sliders are connected to both ends of the rolling roller, wherein one slider is threadedly connected to the threaded rod, and the other slider is slidably connected to the guide column;

[0008] The upper end of the conveying mechanism is located on the moving path of the rolling roller and a supporting plate is fixed thereon.

[0009] Preferably, a floating frame is provided on the top of the slider, and an air-expansion shaft is provided inside the floating frame in the vertical direction. A lifting plate is slidably sleeved on the outside of the air-expansion shaft, and a fixed shaft is fixedly installed on the top of the lifting plate. The fixed shaft is connected to the roller shaft of the rolling roller through a bearing, and a spring is sleeved on the outside of the air-expansion shaft. The upper end of the spring is connected to the lifting plate, and the lower end is connected to the bottom of the floating frame. The gap between the rolling roller and the support plate is adjusted by driving the lifting plate to move up and down inside the floating frame.

[0010] Preferably, the pair of pressing rollers comprises mounting plates fixedly mounted on both sides of the conveying mechanism, two pairs of pressing rollers are arranged between the two mounting plates along the length direction of the conveying mechanism, guide grooves are provided at both ends of each mounting plate corresponding to the roller axis direction of the pressing roller, each group of guide grooves are symmetrically distributed along the height direction of the mounting plate and are obliquely distributed, and the roller axis of each pressing roller extends into the corresponding guide groove and is slidably connected thereto;

[0011] Sliding frames are also provided at both ends of the outside of each mounting plate, and two first limiting grooves are symmetrically provided in each sliding frame along the vertical direction, and the roller shaft of the pressing roller passes through the corresponding guide groove and then extends into the corresponding first limiting groove;

[0012] The two sliding frames located on the outside of the same mounting plate are fixedly connected by a connecting rod. A fixing seat is fixed on the outer wall of the mounting plate at a position corresponding to the connecting rod. The connecting rod is slidably connected to the fixing seat. A cylinder is also installed at one end of the fixing seat. The cylinder seat end of the cylinder is fixedly connected to the fixing seat, and the piston end is connected to the sliding frame.

[0013] Preferably, the tops of the two sliding frames close to the laminating roller are integrally connected with a first guide plate, the bottom of the first guide plate is an inclined structure, and the end of the first guide plate is in contact with the fixed shaft in the initial state.

[0014] Preferably, the floating frame is slidably mounted on the slider in the horizontal direction, a slide rail is fixed on the top of the slider towards the side of the pressing roller group, and the floating frame is arranged on the slide rail and slidably connected thereto;

[0015] A vertical plate is fixed on the top of the liner near one side of the mounting plate in the vertical direction, an electromagnet is installed on the side of the vertical plate facing the floating frame, and a magnetic block is fixed on the outer wall of the floating frame at a position corresponding to the electromagnet.

[0016] Preferably, two second guide plates are fixed to the upper end of the conveying mechanism, the two second guide plates are arranged toward one side of the pressing roller group, and their height is smaller than the first guide plates, and the bottoms of the two first guide plates are inclined.

[0017] Preferably, a rotating plate is rotatably connected to the outer wall of the floating frame, a second limiting groove penetrating the plate surface is provided in the middle of the rotating plate along its length direction, a sliding rod is fixedly connected to the lifting plate, the sliding rod extends to the inside of the second limiting groove and is slidably connected thereto, and the lifting plate drives the rotating plate to rotate with its bottom as the center when sliding up and down inside the floating frame, and when the roller shaft of the rolling roller contacts the second guide plate so that the distance between the rolling roller and the support plate reaches the preset thickness of the hose, the rotating plate is in a horizontal state;

[0018] A push rod is fixedly connected to the middle of the two sliding frames near the rolling roller side in the horizontal direction. When the sliding frame moves toward the rolling roller to the extreme position, the end of the push rod is flush with the plate surface of the rotating plate.

[0019] Compared with the prior art, the present invention provides a light-curing hose rolling device for trenchless pipeline repair, which has the following beneficial effects:

[0020] The curing hose rolling device proposed in the present invention, when the pressing roller group clamps and injects glue to the dry material hose, it first applies a force to the rolling roller to move the rolling roller downward in the vertical direction. After the first batch of dry material hoses are injected with glue, they are transported forward and contacted with the rolling roller to complete the first rolling. Then, during the injection of glue for the next batch of dry material hoses, the rolling roller will actively move back and forth relative to the previous batch of dry material hoses, and the gap will be adjusted twice during the movement, which not only realizes multiple rolling of the hose, but also gradually increases the rolling pressure of the hose, avoiding the hose being crushed and damaged by the rolling roller in one rolling. In addition, the multiple rolling of the hose by the rolling roller in the present invention is completed during the injection of glue for the next batch of dry material hoses, and will not affect the processing time of the entire hose. The cooperation between the pressing roller group and the rolling roller can realize the continuous production of the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 A schematic diagram of the three-dimensional structure of the entire device along the axonometric direction in the embodiment;

[0023] Figure 2 It is a front view structural schematic diagram of the entire device in the embodiment;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of the pressing roller set in the embodiment;

[0025] Figure 4 It is a schematic diagram of the installation of the support plate and the rolling roller on the conveying mechanism in the embodiment;

[0026] Figure 5 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0027] Figure 6 for Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0028] Figure 7 This is a schematic diagram of the distribution of magnetic blocks and electromagnets installed on the floating frame when the floating frame is in the initial state in the embodiment;

[0029] Figure 8 It is a schematic diagram of the assembly structure of the floating frame and the slider in the embodiment;

[0030] Fig. 9 It is a schematic diagram of the rotation state of the rotating plate relative to the floating frame when the lifting plate slides to the bottom of the floating frame in the embodiment.

[0031] In the figure: 1. conveying mechanism; 2. clamping roller group; 3. rolling roller; 4. support plate; 5. second guide plate; 6. mounting plate; 7. fixed seat; 8. sliding frame; 9. connecting rod; 10. cylinder; 11. first limit groove; 12. guide groove; 13. first guide plate; 14. push rod; 15. clamping roller; 16. threaded rod; 17. liner; 18. slider; 19. vertical plate; 20. floating frame; 21. fixed shaft; 22. rotating plate; 23. magnet; 24. electromagnet; 25. second limit groove; 26. slide rail; 27. air shaft; 28. lifting plate; 29. ​​spring; 30. slide rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the 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 belong to the scope of protection of the present invention.

[0033] This embodiment provides a pipeline trenchless repair light-curing hose rolling device, such as Figures 1 to 9As shown, it includes a conveying mechanism 1 for conveying a dry material hose, and a clamping roller group 2 and a rolling roller 3 are sequentially arranged on the conveying mechanism 1 along the conveying direction of the dry material hose, wherein the conveying mechanism 1 can adopt the currently existing belt conveying method, and there are two sets of clamping roller groups 2, each of which includes clamping rollers 15 arranged up and down, and the two clamping rollers 15 are distributed on the upper and lower sides of the top belt, and are used to clamp the dry material hose. When the dry material hose is conveyed forward to the area of ​​the clamping roller group 2 on the conveying mechanism 1, the dry material hose between the two pairs of clamping rollers 15 is in a sealed state, and then the dry material hose is vacuumed, and the glue injection head cooperates with the vacuum negative pressure to fill the glue liquid, and the filled hose is sealed and enters the area where the rolling roller 3 is located. In the process of the hose being conveyed forward, At this time, the rolling roller 3 remains stationary, and the hose continuously contacts the rolling roller 3 to complete the first round of rolling. When all the dry material hoses in the area of ​​the clamping roller group 2 are transported forward and out of the area, the clamping roller group 2 moves again to clamp the next batch of dry material hoses. At this time, the rolling roller 3 first moves downward for a distance in the vertical direction, and then the rolling roller 3 moves on the conveying mechanism 1 relative to the fixed hose. The rolling roller 3 rolls the hose for the second time, and stops moving after it completes the rolling of the entire hose. At this time, the rolling roller 3 moves downward for a distance again, and makes the gap of the rolling roller 3 consistent with the final required thickness of the hose, and then the rolling roller 3 moves in the opposite direction to the initial position, rolls the hose again, and finally forms the thickness of the hose. After the rolling roller 3 returns to its initial position, it can be reset in the vertical direction. After the next batch of dry material hoses in the area of ​​the clamping roller group 2 is injected with glue, the clamping roller group 2 releases the dry material hose, which is transported forward on the conveying mechanism 1, and the above process is repeated to complete the rolling, and this cycle is repeated until all the dry materials are processed into finished hoses.

[0034] Specifically, in the present embodiment, the clamping roller group 2 includes a mounting plate 6 fixedly mounted on both sides of the conveying mechanism 1, and two pairs of clamping rollers 15 are arranged between the two mounting plates 6 along the length direction of the conveying mechanism 1. Guide grooves 12 are provided at both ends of each mounting plate 6 in the roller axis direction of the clamping roller 15, and each group of guide grooves 12 is symmetrically distributed along the height direction of the mounting plate 6 and is inclinedly distributed. The roller axis of each clamping roller 15 extends into the corresponding guide groove 12 and is slidably connected thereto. Sliding frames 8 are also provided at both ends of the outside of each mounting plate 6, and two first limiting grooves 11 are symmetrically provided in each sliding frame 8 along the vertical direction. The roller axis of the clamping roller 15 passes through the corresponding guide groove 12 and then extends into the corresponding first limiting groove 11, and is located at the same The two sliding frames 8 on the outside of the mounting plate 6 are fixedly connected by a connecting rod 9, and a fixed seat 7 is fixed at a position corresponding to the connecting rod 9 on the outer wall of the mounting plate 6. The connecting rod 9 is slidably connected to the fixed seat 7. A cylinder 10 is also installed at one end of the fixed seat 7. The cylinder seat end of the cylinder 10 is fixedly connected to the fixed seat 7, and the piston end is connected to the sliding frame 8. One of the sliding frames 8 is driven by the cylinder 10 to slide relative to the mounting plate 6, thereby driving the other sliding frame 8 to move synchronously with it. When the sliding frame 8 slides, it will act on the roller shaft of the clamping roller 15. While the roller shaft slides in the guide groove 12, it also slides along the first limit groove 11, and finally the two clamping rollers 15 distributed up and down are synchronously moved toward or away from each other, so as to achieve the clamping and release of the dry material hose.

[0035] The rolling roller 3 in this embodiment can perform reciprocating motion on the conveying mechanism 1, so that during the glue injection process of the second batch of dry material hoses, it actively performs multiple rounds of repeated rolling on the hoses that have been injected with glue. The top of the conveying mechanism 1 is located on both sides of it and two liner seats 17 are fixed respectively, wherein a threaded rod 16 is rotatably installed between the two liner seats 17, and the threaded rod 16 is driven to rotate by a motor installed on the back of the liner seat 17, and a guide column is fixed between the other two liner seats 17. Slide blocks 18 are connected to both ends of the rolling roller 3, one of which is threadedly connected to the threaded rod 16, and the other is slidably connected to the guide column. The threaded rod 16 is driven to rotate by the motor, thereby driving the rolling roller 3 to perform reciprocating motion relative to the conveying mechanism 1. In addition, since the conveying mechanism 1 in this embodiment is a belt conveyor, and the rolling roller 3 needs to roll the hose, the belt has a certain flexibility. Therefore, a support plate 4 is fixed on the upper end of the conveying mechanism 1 on the moving path of the rolling roller 3. The top belt contacts the support plate 4 during transportation. When the rolling roller 3 rolls the hose, uniform rolling can be achieved by cooperating with the support plate 4 at the bottom of the belt.

[0036] Furthermore, since the rolling roller 3 needs to be able to move in the vertical direction to adjust the gap, a floating frame 20 is also provided on the top of the slider 18 in this embodiment, and an air expansion shaft 27 is provided inside the floating frame 20 along the vertical direction. The outside of the air expansion shaft 27 is slidably sleeved with a lifting plate 28, and a fixed shaft 21 is also fixedly installed on the top of the lifting plate 28. The fixed shaft 21 is connected to the roller shaft of the rolling roller 3 through a bearing, and a spring 29 is sleeved on the outside of the air expansion shaft 27. The upper end of the spring 29 is connected to the lifting plate 28, and the lower end is connected to the bottom of the floating frame 20. By driving the lifting plate 28 in the floating frame 2 0 moves up and down inside to adjust the gap between the rolling roller 3 and the support plate 4. The reason why the air expansion shaft 27 is rotatably installed inside the floating frame 20 in this embodiment is that after the height of the rolling roller 3 is adjusted, the rolling roller 3 needs to maintain this state to roll the hose (the friction force generated by the ribs inside the air expansion shaft 27 and the fixed shaft 21 after expansion is large enough to prevent the fixed shaft 21 from moving due to the action of the spring 29). The control and use of the air expansion shaft 27 and its internal structure are conventional means in the field, and will not be described in detail, and the focus will be on explaining the adjustment of the height of the rolling roller 3.

[0037] In the initial state, the rolling roller 3 is located at the top of the floating frame 20 under the action of the spring 29. At this time, the rolling roller 3 is flush with the clamping roller 15. When the first batch of dry material hoses are injected with glue in the area of ​​the clamping roller group 2, the cylinder 10 drives the two groups of sliding frames 8 to move toward the rolling roller 3. The tops of the two sliding frames 8 close to the rolling roller 3 are integrally formed with a first guide plate 13 connected thereto. The bottom of the first guide plate 13 is an inclined structure. In the initial state, the end of the first guide plate 13 is just in contact with the fixed shaft 21. As the sliding frame 8 moves toward the rolling roller 3, the first guide plate 13 gradually applies a force to the fixed shaft 21. Due to its inclined structure at the bottom, it acts on the fixed shaft 21 to slide downward inside the floating frame 20. When the sliding frame 8 moves to make the two clamping rollers 15 press the dry material hose After the clamping is formed (the roller axes of the two clamping rollers 15 slide toward each other to the extreme position inside the first limit groove 11), the air expansion shaft 27 moves to clamp the fixed shaft 21, so that the rolling roller 3 can always stay at this height. After the first batch of dry material hoses are injected with glue, the two sliding frames 8 return to the initial position, and the first guide plate 13 loses the force on the fixed shaft 21. At this time, the conveying mechanism 1 starts to convey the dry material hose forward, and the hose is crushed when passing through the rolling roller 3. When all the dry material hoses in the area of ​​the clamping roller group 2 are conveyed forward, the cylinder 10 drives the sliding frame 8 to move toward the rolling roller 3 again, so that the clamping roller 15 clamps the next batch of dry material hoses. At this time, the rolling roller 3 can adjust the height again during the injection process and actively move relative to the hose, thereby performing repeated crushing.

[0038] The gap adjustment of the rolling roller 3 is still carried out with the help of the first guide plate 13. The second adjustment of the height of the rolling roller 3 is achieved by moving the first guide plate 13 toward the rolling roller 3 again. In view of this, the present embodiment chooses to slide the floating frame 20 on the slider 18 in the horizontal direction. A slide rail 26 is fixed on the top of the slider 18 toward the side of the pressing roller group 2. The floating frame 20 is mounted on the slide rail 26 and is slidably connected thereto. When the floating frame 20 moves relative to the slider 18 toward the side of the pressing roller group 2, the first guide plate 13 acts on the fixed shaft 21 again. When the rolling roller 3 continues to move downward in the vertical direction, the power of the floating frame 20 sliding toward the side of the pressing roller group 2 is In this embodiment, the electromagnet 24 and the magnetic block 23 are matched, and the specific setting is: a vertical plate 19 is fixed on the top of the liner 17 near the side of the mounting plate 6 in the vertical direction, and the electromagnet 24 is installed on the side of the floating frame 20. The magnetic block 23 is fixed on the outer wall of the floating frame 20 at the position corresponding to the electromagnet 24. The electromagnet 24 conducts electricity to generate magnetic force to adsorb the magnetic block 23, so that the floating frame 20 slides relative to the slider 18, and the timing of the electromagnet 24 conducting electricity needs to be controlled. The electromagnet 24 in this embodiment is connected to the injection head signal. Every time the injection head completes the injection, the electromagnet 24 conducts electricity to generate magnetic force. Because once the injection head completes the injection, the two The first slide frame 8 will reset and release the dry material hose, waiting for the dry material hose to be transported forward. At this time, the electromagnet 24 cooperates with the magnetic block 23 to drive the floating frame 20 to slide toward the side of the clamping roller group 2, and wait for the next batch of dry material hoses to enter the area of ​​the clamping roller group 2. When the clamping roller 15 clamps it, since the floating frame 20 has completed sliding in advance, when the slide frame 8 moves toward the rolling roller 3, the first guide plate 13 acts on the fixed shaft 21 to make it continue to move downward inside the floating frame 20 until the two clamping rollers 15 clamp the dry material hose. At this time, the height of the rolling roller 3 changes relative to the first time. During the glue injection process of the next batch of dry material hoses, the motor drives The threaded rod 16 rotates, thereby driving the rolling roller 3 to slide relative to the hose on the conveying mechanism 1 (because the roller shaft of the rolling roller 3 is connected to the fixed shaft 21 through a bearing, the rolling roller 3 can always rotate relative to the hose during the movement), and the electromagnet 24 can continue to cooperate with the glue injection head when it is powered off. When the glue injection head starts to inject glue, the electromagnet 24 is powered off and loses its adsorption to the magnetic block 23. At this time, although the floating frame 20 can slide freely relative to the slider 18, since both the slider 18 and the floating frame 20 move in the direction of hose delivery, the friction generated between the rolling roller 3 and the hose will still cause the floating frame 20 to stay on the slider 18 near the end of the mounting plate 6.The rolling roller 3 and the floating frame 20 move forward synchronously relative to the conveying mechanism 1. Two second guide plates 5 are fixed at the upper end of the conveying mechanism 1. The two second guide plates 5 are arranged toward one side of the pressing roller group 2, and their height is less than the first guide plate 13. When the rolling roller 3 moves forward until it is about to complete the rolling with the hose, the roller shafts at both ends of the rolling roller 3 begin to contact with the second guide plates 5, and under the action of the second guide plates 5, the fixed shaft 21 is driven to continue to slide downward inside the floating frame 20. When the rolling roller 3 moves forward until the distance between it and the support plate 4 reaches the target value, it stops moving (at this time, the gap between the rolling roller 3 and the support plate 4 is the final thickness of the hose), and then the motor drives the threaded rod 16 to rotate in the opposite direction. During the process of the rolling roller 3 returning to the initial position, it rolls the hose again and rolls this part of the hose to the required thickness.

[0039] It should be noted that, when the rolling roller 3 returns to the initial position, due to the friction between the rolling roller 3 and the hose, the floating frame 20 will slide to the initial position relative to the slider 18 during this process. When the slider 18 returns to the initial position, the pressing roller 15 is still in a clamping state for the dry material hose (the glue injection head is in a glue injection state), and the fixed shaft 21 further moves downward for a distance under the action of the second guide plate 5. Therefore, the fixed shaft 21 will not contact the first guide plate 13. At this time, the floating frame 20 is needed. The initial position relative to the slider 18 remains stationary, and under the limiting action of the first guide plate 13, the air-inflating shaft 27 releases gas, and the friction between it and the fixed shaft 21 is reduced. The fixed shaft 21 slides upward under the action of the spring 29 to the position where the rolling roller 3 first descends, and then the air-inflating shaft 27 starts to work again to generate friction with the fixed shaft 21, so that the rolling roller 3 always remains at this height. When the second batch of dry material hoses inside the compression roller group 2 are injected with glue, they are again contacted with the rolling roller 3 at this height and rolled when they are transported forward on the conveying mechanism 1. In addition, as the glue injection of the second batch of dry material hoses is completed, the electromagnet 24 is also energized at the same time to adsorb the magnetic block 23, causing the floating frame 20 to slide relative to the slider 18. When the second batch of dry material hoses are injected with glue and the hoses are transported to the area where they are separated from the clamping roller group 2, the two sliding frames 8 move toward the rolling roller 3 again to clamp the third batch of dry material hoses. During the contact between the first guide plate 13 and the fixed shaft 21, the fixed shaft 21 can be driven to move downward inside the floating frame 20.

[0040] Under normal circumstances, when the slider 18 and the floating frame 20 move from the second guide plate 5 to the direction of the clamping roller set 2, due to the friction between the rolling roller 3 and the hose, the friction will drive the floating frame 20 to slide relative to the slider 18 to the initial relative position of the two. Even if the friction between the rolling roller 3 and the hose cannot completely reset the floating frame 20, when the two return to the slider 18 and contact the liner 17 equipped with the electromagnet 24, the gas inside the air expansion shaft 27 is released, and the fixed shaft 21 will slide upward under the action of the spring 29 and act on the first guide plate 13 (the clamping roller 15 is in a clamping state at this time). Under the action of the inclined surface of the first guide plate 13, the floating frame 20 will continue to slide to the fully reset position relative to the slider 18. However, in this embodiment, the rolling roller 3 can rotate freely. When it contacts the hose, rolling friction is generated between the two, and the adjustment range of the rolling roller 3 is not large. This requires that the inclination angle of the first guide plate 13 should not be too large. This will cause the fixed shaft 21 and the first guide plate 13 to apply insufficient force in the horizontal direction to the floating frame 20 when they contact. If the friction between the slider 18 and the floating frame 20 is large or there is obstruction, the rolling roller 3 cannot be accurately restored to the position of the first drop.

[0041] In order to avoid the above situation, in this embodiment, a rotating plate 22 is rotatably connected to the outer wall of the floating frame 20 below the magnetic block 23. A second limiting groove 25 is provided in the middle of the rotating plate 22 along its length direction and penetrates the plate surface. A sliding rod 30 is fixedly connected to the lifting plate 28. The sliding rod 30 extends to the inside of the second limiting groove 25 and is slidably connected thereto. When the lifting plate 28 slides up and down inside the floating frame 20, it drives the rotating plate 22 to rotate with its bottom as the center. The middle of the two sliding frames 8 near the rolling roller 3 is fixedly connected to the push rod 14 in the horizontal direction. The length of the push rod 14 is controlled so that when the sliding frame 8 moves toward the rolling roller 3 to the extreme position, the end of the push rod 14 is just flush with the plate surface of the rotating plate 22, which will not interfere with the downward movement of the fixed shaft 21, and the floating frame 20 can be accurately reset relative to the slider 18 through the cooperation of the push rod 14 and the rotating plate 22. The specific principle is: when the rolling roller 3 remains stationary relative to the conveying mechanism 1 and the gap is adjusted in the vertical direction, the lifting plate 28 drives the sliding rod 30 to act on the rotating plate 22, causing it to rotate from an initial inclined state toward a horizontal direction. When the slider 18 slides to the position of the second guide plate 5 relative to the conveying mechanism 1, the second guide plate 5 acts on the roller shaft of the rolling roller 3 to continue to drive the rotating plate 22 to rotate and finally rotate the rotating plate 22 to a horizontal position. When the slider 18 is reset to its initial position, the top rod 14 can definitely contact the rotating plate 22 in a horizontal state and ensure that the floating frame 20 can be fully reset relative to the slider 18.

[0042] In the description of the present invention, the terms "first", "second", "another", and "yet another" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A light-curing hose rolling device for trenchless pipeline repair, comprising a conveying mechanism (1) for conveying a dry material hose, wherein a pressing roller group (2) and a rolling roller (3) are sequentially arranged on the conveying mechanism (1) along the conveying direction of the dry material hose, and wherein: During the process of the pressing roller group (2) clamping and injecting glue into the first batch of dry material hoses and the next batch of dry material hoses, the rolling roller (3) first remains stationary to roll the first batch of dry material hoses, and then reciprocates relative to the stationary dry material hoses to roll them, and during the reciprocating movement of the rolling roller (3), the distance between the rolling roller (3) and the dry material hose is adjusted at least once to shorten the distance between the two; Two liner seats (17) are fixed on both sides of the top of the conveying mechanism (1), wherein a threaded rod (16) is rotatably mounted between the two liner seats (17), and a guide column is fixed between the other two liner seats (17). Slide blocks (18) are connected to both ends of the rolling roller (3), wherein one of the slide blocks (18) is threadedly connected to the threaded rod (16), and the other slide block (18) is slidably connected to the guide column. The upper end of the conveying mechanism (1) is located on the moving path of the rolling roller (3) and is fixed with a support plate (4); A floating frame (20) is arranged on the top of the slider (18), an air expansion shaft (27) is arranged inside the floating frame (20) in the vertical direction, a lifting plate (28) is slidably sleeved on the outside of the air expansion shaft (27), a fixed shaft (21) is fixedly installed on the top of the lifting plate (28), the fixed shaft (21) is connected to the roller shaft of the rolling roller (3) through a bearing, a spring (29) is sleeved on the outside of the air expansion shaft (27), the upper end of the spring (29) is connected to the lifting plate (28), and the lower end is connected to the bottom of the floating frame (20), and the gap between the rolling roller (3) and the support plate (4) is adjusted by driving the lifting plate (28) to move up and down inside the floating frame (20); The pair of clamping rollers (2) comprises mounting plates (6) fixedly mounted on both sides of the conveying mechanism (1), two pairs of clamping rollers (15) are arranged between the two mounting plates (6) along the length direction of the conveying mechanism (1), guide grooves (12) are provided at both ends of each mounting plate (6) in the roller axis direction of the clamping roller (15), each group of guide grooves (12) are symmetrically distributed along the height direction of the mounting plate (6) and are inclinedly distributed, and the roller axis of each clamping roller (15) extends into the corresponding guide groove (12) and is slidably connected thereto; Each mounting plate (6) is also provided with a sliding frame (8) at both ends of its exterior, and each sliding frame (8) has two first limiting grooves (11) symmetrically arranged in the vertical direction, and the roller shaft of the pressing roller (15) passes through the corresponding guide groove (12) and then extends into the corresponding first limiting groove (11); Two sliding frames (8) located outside the same mounting plate (6) are fixedly connected via a connecting rod (9); a fixing seat (7) is fixed on the outer wall of the mounting plate (6) at a position corresponding to the connecting rod (9); the connecting rod (9) is slidably connected to the fixing seat (7); a cylinder (10) is also installed at one end of the fixing seat (7); a cylinder seat end of the cylinder (10) is fixedly connected to the fixing seat (7), and a piston end is connected to the sliding frame (8); The tops of the two sliding frames (8) close to the rolling roller (3) are integrally formed with a first guide plate (13) connected thereto, the bottom of the first guide plate (13) being in an inclined structure, and the ends of the first guide plates (13) being in contact with the fixed shaft (21) in an initial state; The floating frame (20) is slidably mounted on the slider (18) in a horizontal direction, a slide rail (26) is fixed on the top of the slider (18) on a side facing the pressing roller set (2), and the floating frame (20) is mounted on the slide rail (26) and slidably connected thereto; A vertical plate (19) is fixed in the vertical direction on the top of the liner (17) near one side of the mounting plate (6); an electromagnet (24) is installed on the side of the vertical plate (19) facing the floating frame (20); and a magnetic block (23) is fixed on the outer wall of the floating frame (20) at a position corresponding to the electromagnet (24); A rotating plate (22) is rotatably connected to the outer wall of the floating frame (20), a second limiting groove (25) penetrating the plate surface is provided in the middle of the rotating plate (22) along its length direction, a sliding rod (30) is fixedly connected to the lifting plate (28), the sliding rod (30) extends to the inside of the second limiting groove (25) and is slidably connected thereto, the lifting plate (28) drives the rotating plate (22) to rotate with its bottom as the center when sliding up and down inside the floating frame (20), and when the roller shaft of the rolling roller (3) contacts the second guide plate (5) so that the distance between the rolling roller (3) and the support plate (4) reaches a preset thickness of the hose, the rotating plate (22) is in a horizontal state; A push rod (14) is fixedly connected in the horizontal direction to the middle of the two sliding frames (8) close to the rolling roller (3). When the sliding frames (8) move toward the rolling roller (3) to the extreme position, the end of the push rod (14) is flush with the plate surface of the rotating plate (22).

2. The pipeline trenchless repair light-curing hose rolling device according to claim 1 is characterized by: Two second guide plates (5) are also fixed to the upper end of the conveying mechanism (1), the two second guide plates (5) are arranged towards one side of the pressing roller set (2), and their height is smaller than that of the first guide plate (13).

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