Segment mold pouring system with air bag buffering function

Abstract

The duct piece mold pouring system with the air bag buffering function comprises a conveying guide rail, a duct piece mold and at least one air bag, the conveying guide rail extends in the first direction, and the conveying guide rail comprises duct piece pouring sections; the duct piece mold is in sliding butt joint with the conveying guide rail and is supported by the conveying guide rail, the duct piece mold comprises a high-frequency vibrator, and the high-frequency vibrator is used for enabling the duct piece mold located on the pouring section to vibrate so as to enable a duct piece to be poured and formed; the air bag is at least installed on one side of the duct piece pouring section and used for pushing the duct piece mold so that the duct piece mold can be vertically separated from the conveying guide rail. According to the invention, rigid collision with a conveying track is avoided when the mold vibrates to cast the duct piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of segment pouring technology, and in particular to a segment mold pouring system with air bag buffer. BACKGROUND

[0002] In the current subway tunnel and other underground engineering, reinforced concrete segments as the key components of tunnel lining, the quality is directly related to the safety and durability of the overall structure. This kind of segment is usually poured and produced on an automatic assembly line using a special segment mold. When the mold is transported to the pouring station, the attached vibrator needs to be started to vibrate the mold strongly to ensure that the concrete is fully compacted, filled in place and reduce internal defects. However, during this high-frequency vibration process, a significant technical problem emerges: the vibration energy is transmitted to the fixed conveying track below through the mold, resulting in frequent and violent rigid collisions and impacts at the contact point between the two. This direct intermetallic impact not only produces loud noise, but also continuously damages the track structure, the mold itself and the trolley running mechanism, such as local deformation, loose bolts or fatigue microcracks, which will inevitably affect the equipment precision and service life, and indirectly endanger the forming quality of the segment.

[0003] Therefore, the present application provides a segment mold pouring system with air bag buffer to avoid rigid collision with the conveying track when the mold is vibrated to pour the segment. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide a segment mold pouring system with air bag buffer, which can avoid rigid collision with the conveying track when the mold is vibrated to pour the segment.

[0005] The purpose of the present application is achieved by the following technical solutions:

[0006] A segment mold pouring system with air bag buffer, comprising:

[0007] A conveying guide rail, the conveying guide rail is arranged to extend along a first direction, the conveying guide rail comprises a segment pouring section;

[0008] A segment mold, the segment mold is in sliding abutment with and supported by the conveying guide rail, the segment mold comprises a high-frequency vibrator, the high-frequency vibrator is used to vibrate the segment mold located in the pouring section to form a segment;

[0009] At least one air bag, the air bag is installed on at least one side of the segment pouring section, the air bag is used to push the segment mold to vertically separate the segment mold from the conveying guide rail.

[0010] Furthermore, the conveying guide rail is provided with at least two rails, which are arranged at intervals along the first direction.

[0011] Furthermore, the conveying guide rail includes a conveying groove and a plurality of conveying wheels. The conveying groove extends along a first direction and the opening of the conveying groove faces vertically upward. The plurality of conveying wheels are housed in the conveying groove and are distributed sequentially at intervals along the first direction. The conveying wheels slide against the segment mold. The airbag is installed between two of the conveying guide rails.

[0012] Furthermore, the contact surface between the segment mold and the conveying guide rail is provided with at least one arc-shaped positioning groove, the groove opening of the arc-shaped positioning groove facing downwards, and each arc-shaped positioning groove is provided between two conveying guide rails; at least one positioning element is provided between the two conveying guide rails, each positioning element extending along the direction of gravity, the positioning element including a first sleeve, a second sleeve and an elastic element, one end of the first sleeve being connected to the ground, the other end of the first sleeve and one end of the second sleeve being interlocked, the other end of the second sleeve being used to abut against the arc-shaped positioning groove to prevent the segment mold from deviating excessively from the casting segment, the elastic element being provided inside the first sleeve and the second sleeve, the elastic element extending along the direction of gravity, the two ends of the elastic element abutting against one end of the first sleeve and one end of the second sleeve respectively, and each arc-shaped positioning groove corresponds one-to-one with each positioning element.

[0013] Furthermore, the airbag has at least one clearance channel, which extends along the direction of gravity and passes through the opposite ends of the airbag, and each clearance channel is provided with a positioning element at intervals.

[0014] Furthermore, the segment mold also includes a limiting assembly, which includes a first base, a first hinge rod, a second base, a second hinge rod, a connecting block, a telescopic rod, and a limiting plate. The first base is slidably connected to the conveying guide rail. The first hinge rod is connected to the first base and extends in the direction of gravity. The second base is connected to the segment mold. The second hinge rod is connected to the second base and extends in the horizontal direction. Both ends of the connecting block are hinged to the first base and one end of the telescopic rod, respectively. The other end of the telescopic rod is hinged to the second hinge rod. The limiting plate is located on opposite sides of the first base to limit the maximum horizontal offset angle of the segment mold, which drives the connecting block around the first hinge rod via the telescopic rod.

[0015] Furthermore, there are at least two limiting components, which are symmetrically arranged at opposite ends of the segment mold.

[0016] Furthermore, the segment mold also includes a guide groove, which is located at the bottom of the segment mold and extends along a first direction. The opening of the guide groove is vertically downward, and the bottom of the guide groove is used to abut against the conveying guide rail.

[0017] Furthermore, hook edges are provided on opposite sides of the opening of the guide groove. The hook edges extend along the first direction and are away from the opening of the guide groove and bend upward along the anti-gravity direction. The hook edges are used to correct the deviation of the segment falling back to the conveying guide rail after the segment is vibrated and cast by the segment mold.

[0018] Furthermore, the guide groove is detachably connected to the segment mold.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The core benefit of the airbag design lies in eliminating the rigid connection between the mold and the conveyor rail, achieving vibration reduction, noise reduction, and equipment protection. In traditional processes, the enormous energy generated by the high-frequency vibrator is directly transmitted to the rigid rail through the mold, causing severe metallic impact noise and structural vibration. This invention uses an inflatable airbag to lift the entire mold, separating it from the rail and forming an elastic, air-filled isolation layer between them. When the vibration energy is transmitted to the airbag, it is largely absorbed and dissipated by the flexibility of its polymer material and the damping effect of the compressed air inside, preventing it from continuing to impact the rail foundation. This not only minimizes the harsh impact noise and improves the working environment but also alleviates repeated impacts on the conveyor rail and mold, effectively preventing bolt loosening, localized plastic deformation, and fatigue microcracks, extending the service life and maintenance cycle of the entire casting system. Compared to passive cushioning solutions such as rubber pads that may require frequent replacement, the airbag experiences minimal wear under normal operating conditions, has a longer lifespan, and lower maintenance costs.

[0021] 2. Furthermore, this design indirectly improves the final molding quality of reinforced concrete tunnel segments by ensuring the stability of the vibration process. When the mold is stably supported by airbags and in a "suspended" state, its vibration freedom is greater, and it is subject to less constraint and interference from the guide rails. This allows the vibration energy excited by the high-frequency vibrator to be transmitted and distributed more evenly and fully throughout the mold cavity, thereby ensuring that the concrete mixture can flow smoothly to every corner and effectively eliminate air bubbles and voids trapped inside. This is crucial for tunnel segments, which are key components of tunnel lining, because the improvement in their quality is directly related to the long-term safety and waterproof reliability of the entire underground engineering structure, thus improving the overall quality of the project from the source. Attached Figure Description

[0022] Figure 1This is a schematic diagram of a segment casting system with airbag cushioning according to the present invention;

[0023] Figure 2 for Figure 1 The enlarged view shown is A.

[0024] Figure 3 for Figure 1 Cross-sectional view;

[0025] Figure 4 for Figure 3 A magnified view of a portion of the image, B.

[0026] In the diagram: 1. Conveying guide rail; 101. Conveying trough; 102. Conveying wheel; 2. Segment mold; 3. Airbag; 301. Clearance channel; 4. Arc-shaped positioning groove; 5. Positioning component; 501. First sleeve; 502. Second sleeve; 503. Elastic component; 6. Limiting assembly; 601. First base; 602. First hinge rod; 603. Second base; 604. Second hinge rod; 605. Connecting block; 606. Telescopic rod; 607. Limiting plate; 7. Guide groove; 8. Hook edge. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] See Figures 1-4A preferred embodiment of the present invention provides a segment casting system with airbag cushioning, comprising a conveying guide rail 1, a segment mold 2, and at least one airbag 3. The conveying guide rail 1 extends along a first direction and includes a segment casting segment. The segment mold 2 slides against and is supported by the conveying guide rail 1. The segment mold 2 includes a high-frequency vibrator for vibrating the segment mold 2 located in the casting segment to cast the segment. The airbag 3 is installed on at least one side of the segment casting segment and is used to push the segment mold 2 so that the segment mold 2 is vertically detached from the conveying guide rail 1.

[0031] The working principle of this invention is as follows: When the segment mold 2 slides along the conveying guide rail 1 to the segment casting section, the system activates at least one airbag 3 installed on one side of the casting section. The airbag 3 inflates, generating an upward thrust that vertically lifts the segment mold 2, causing it to disengage from the conveying guide rail 1, thus creating a brief gap between the bottom of the mold and the guide rail. At this time, the high-frequency vibrator of the segment mold 2 is activated, strongly vibrating the mold and promoting thorough compaction and filling of the concrete within it. Since the mold has detached from the guide rail, the vibration energy cannot be directly transmitted to the guide rail; instead, it is absorbed and buffered by the elastic deformation of the airbag 3, effectively avoiding rigid collisions and impacts between the mold and the guide rail. After vibration, the airbag 3 deflates and contracts, and the mold falls back onto the conveying guide rail 1 under gravity, returning to its sliding contact state for continued movement to the next station. This process not only significantly reduces noise and structural damage risks but also ensures the long-term accuracy of the mold and guide rail, as well as the quality of the segment molding.

[0032] Clearly, the core benefit of the airbag 3 design lies in eliminating the rigid connection between the mold and the conveying guide rail 1, achieving vibration reduction, noise reduction, and equipment protection. In traditional processes, the enormous energy generated by the high-frequency vibrator is directly transmitted to the rigid rail through the mold, causing severe metallic impact noise and structural vibration. This invention uses an inflatable airbag 3 to lift the entire mold, separating it from the guide rail and forming an air-filled elastic isolation layer between them. When the vibration energy is transmitted to the airbag 3, it is largely absorbed and dissipated by the flexibility of its polymer material and the damping effect of the compressed air inside, preventing it from continuing to impact the rail foundation. This not only minimizes the harsh impact noise and improves the working environment but also alleviates repeated impacts on the conveying rail and mold, effectively preventing bolt loosening, localized plastic deformation, and fatigue microcracks, extending the service life and maintenance cycle of the entire casting system. Compared to passive buffering solutions such as rubber pads that may require frequent replacement, the airbag 3 experiences minimal wear under normal operating conditions, has a longer lifespan, and lower maintenance costs.

[0033] Furthermore, this design indirectly improves the final molding quality of reinforced concrete tunnel segments by ensuring the stability of the vibration process. When the mold is stably supported by airbag 3 and is in a "suspended" state, its vibration freedom is greater, and it is subject to less constraint and interference from the guide rail. This allows the vibration energy excited by the high-frequency vibrator to be transmitted and distributed more evenly and fully throughout the mold cavity, thereby ensuring that the concrete mixture can flow smoothly to every corner and effectively drive out air bubbles and voids trapped inside. This is crucial for tunnel segments, which are key components of tunnel lining, because the improvement in their quality is directly related to the long-term safety and waterproof reliability of the entire underground engineering structure, thus improving the overall quality of the project from the source.

[0034] In this invention, the conveying guide rail 1 can be a gear-rack driven guide rail. In this design, a continuous rack is integrated and installed on the side or in the middle of the conveying guide rail 1. Correspondingly, one or more drive motors are installed at the bottom of the segment mold 2, with gears on the motor output shaft precisely meshing with the rack on the guide rail. By driving the gears in both forward and reverse directions, the entire mold can be smoothly and precisely moved forward or backward on the guide rail. This transmission method provides high torque and accurate positioning, making it particularly suitable for automated casting production lines requiring frequent starts and stops and precise positioning. Alternatively, linear motor driven guide rails or a transmission belt composed of multiple conveying rollers can also be used.

[0035] More preferably, the conveying guide rail 1 has at least two rails, which are spaced apart along the first direction. In this embodiment, the multi-rail structure improves the stability and balance of the system support. The segment mold 2 and its internal concrete are extremely heavy and generate complex dynamic loads during vibration. The multiple guide rails expand the load-bearing surface from a single line to a wider support plane, effectively resisting the eccentric load and torsional moment caused by vibration, preventing the mold from overturning or laterally sliding during vibration, and creating stable and safe conditions for the airbag 3 to lift and buffer. This design optimizes the buffering efficiency of the airbag 3. The multiple guide rails clearly define the load-bearing support points of the mold, allowing the mold as a whole to more smoothly and synchronously detach from the track when the airbag 3 is lifted, avoiding jamming or local stress concentration that may occur with a single track due to uneven force distribution, ensuring that vibration energy is evenly absorbed by the airbag 3, thereby avoiding rigid collisions.

[0036] More preferably, the conveying guide rail 1 includes a conveying groove 101 and a plurality of conveying wheels 102. The conveying groove 101 extends along a first direction and its opening faces vertically upward. The plurality of conveying wheels 102 are housed within the conveying groove 101 and are distributed sequentially at intervals along the first direction. The conveying wheels 102 slide against the segment mold 2, and the airbag 3 is installed between two conveying guide rails 1. In this embodiment, the upward-opening groove structure provides a semi-enclosed receiving space for the conveying wheels 102, protecting them from direct influence from the external environment. In the production environment, if impurities such as concrete slurry, aggregate, or dust spilled from a height fall directly onto the rail, they will penetrate the bearings or raceways of the conveying wheels 102, causing them to wear rapidly, jam, or be damaged. The sidewalls and bottom of the conveying groove 101 form a protective barrier, reducing the probability of these contaminants falling directly onto the conveying wheels 102. Even if a small amount of debris falls into the trough, it will mostly accumulate at the bottom and is unlikely to come into contact with the continuously rolling conveyor wheel 102, thus ensuring that the conveyor wheel 102 operates in a relatively clean environment. In this design, the airbag 3 is positioned between the two conveyor rails, allowing it to directly contact and apply force to the wide central area at the bottom of the segment mold 2. This lifting method effectively avoids the mechanical interference that might occur if the airbag 3 were installed on the outside of the guide rails with the mold sidewalls, while ensuring that the lifting force is evenly applied to the main load-bearing structure of the mold. In addition, this position places the airbag 3 within the relatively sheltered space formed by the conveyor trough 101, reducing direct pollution and wear caused by concrete aggregate or dust spilled from the periphery of the production line, and improving the working reliability and service life of the airbag 3.

[0037] More preferably, the contact surface between the segment mold 2 and the conveying guide rail 1 is provided with at least one arc-shaped positioning groove 4, with the groove opening of the arc-shaped positioning groove 4 facing downwards. Each arc-shaped positioning groove 4 is provided between two conveying guide rails 1. At least one positioning element 5 is provided between the two conveying guide rails 1. Each positioning element 5 extends along the direction of gravity. The positioning element 5 includes a first sleeve 501, a second sleeve 502, and an elastic element 503. One end of the first sleeve 501 is connected to the ground, and the other end of the first sleeve 501 is fitted onto one end of the second sleeve 502. The other end of the second sleeve 502 is used to abut against the arc-shaped positioning groove 4 to prevent the segment mold 2 from deviating excessively from the casting segment. The elastic element 503 is provided inside the first sleeve 501 and the second sleeve 502. The elastic element 503 extends along the direction of gravity, and both ends of the elastic element 503 abut against one end of the first sleeve 501 and one end of the second sleeve 502, respectively. Each arc-shaped positioning groove 4 corresponds to each positioning element 5. When the mold is lifted by the airbag 3 and subjected to high-frequency vibration, the arc-shaped positioning groove 4 at its bottom engages with the second sleeve 502 at the top of the positioning component 5. The vertical elastic support provided by the elastic component 503 ensures that the second sleeve 502 remains in contact with the arc-shaped groove surface. This flexible contact effectively prevents the mold from excessively shifting or rotating during vibration through continuous lateral constraint, ensuring that it remains in the preset pouring position and guaranteeing pouring accuracy. It also avoids the hard collisions, noise, and wear that may occur with traditional rigid limiters. Furthermore, this elastic positioning mechanism allows the mold to generate slight adaptive floating during vibration, avoiding additional stress caused by forced locking. This protects both the mold and the positioning system itself, and makes the leveling and compaction of concrete more natural and uniform. Thus, while achieving precise positioning, it further improves the forming quality of the segments and the overall reliability of the production system.

[0038] More preferably, the airbag 3 has at least one clearance channel 301, which extends along the direction of gravity and passes through the opposite ends of the airbag 3. Each clearance channel 301 is spaced apart by a positioning element 5. This design superimposes the vertical rigid positioning function and the circumferential flexible buffering function in the vertical space, so that when the airbag 3 inflates and lifts the mold, the positioning element 5 can pass through the clearance channel 301 without interference and always maintain contact with the positioning groove at the bottom of the mold, thereby simultaneously realizing the two core functions of "vertical buffering" and "horizontal limiting" during vibration. This not only solves the problem of spatial interference that may occur between different mechanisms in the limited installation space (i.e., between the two conveying guide rails 1), avoiding the need to increase the guide rail spacing or change the mold structure to accommodate the positioning element 5, ensuring the compactness and rationality of the overall design; but also, by setting the positioning constraint point in the core area of ​​the airbag 3, it can most directly and effectively suppress the horizontal drift or rotation that the mold may generate during buffering vibration, ensuring the stability of the vibration posture. In the initial and later stages of inflatable lifting mold operation, the positioning component 5, acting as a relatively rigid vertical guide structure, effectively limits the excessive lateral expansion or twisting of the airbag 3 under internal air pressure, guiding it to expand and contract more regularly along the direction of gravity. This reduces the risk of accidental friction damage between the airbag 3 and surrounding components, and also ensures that the lifting force is always vertically upward, improving the reliability and repeatability of the operation. This built-in physical support acts like a "skeleton" for the airbag 3, extending its service life in harsh industrial vibration environments.

[0039] More preferably, the segment mold 2 further includes a limiting component 6, which includes a first base 601, a first hinge rod 602, a second base 603, a second hinge rod 604, a connecting block 605, a telescopic rod 606, and a limiting plate 607. The first base 601 is slidably connected to the conveying guide rail 1. The first hinge rod 602 is connected to the first base 601 and extends in the direction of gravity. The second base 603 is connected to the segment mold 2. The second hinge rod 604 is connected to the second base 603 and extends in the horizontal direction. The two ends of the connecting block 605 are respectively hinged to the first base 601 and one end of the telescopic rod 606. The other end of the telescopic rod 606 is hinged to the second hinge rod 604. The limiting plate 607 is provided on opposite sides of the first base 601 to limit the maximum horizontal offset angle of the segment mold 2, which drives the connecting block 605 around the first hinge rod 602 via the telescopic rod 606. When the mold is lifted by the airbag 3 and vibrates at high frequency, the resulting horizontal force is transmitted to the telescopic rod 606 through the second base 603 and the second hinge rod 604, thereby driving the connecting block 605 to swing around the first hinge rod 602 within a certain angle. This hinge mechanism transforms the potential rigid horizontal displacement of the mold into a controllable arc motion. At the same time, the limiting plates 607 set on both sides of the first base 601 physically block the swing stroke of the connecting block 605, strictly limiting the maximum allowable angle of the mold's rotation or horizontal sliding around the vertical axis, fundamentally preventing the risk of the mold colliding with surrounding equipment or deviating from the pouring position due to excessive amplitude. This organic combination of "flexible guidance" and "rigid limiting" not only ensures the compaction effect of concrete under moderate vibration, but also ensures the dynamic stability of the mold under complex excitation forces, improving pouring accuracy and system safety.

[0040] More preferably, there are at least two limiting components 6, symmetrically arranged at opposite ends of the segment mold 2. The two components work together to effectively suppress the torsion or deflection of the mold around its vertical axis during vibration, preventing "tail-wagging" phenomena. This symmetrical constraint ensures that the mold's posture can still be precisely controlled when subjected to asymmetrical excitation forces or internal concrete flow disturbances, thereby guaranteeing the casting accuracy and forming quality of the segments, while also enhancing the overall reliability of the buffer limiting system.

[0041] More preferably, the segment mold 2 also includes a guide groove 7, which is located at the bottom of the segment mold 2 and extends along the first direction. The opening of the guide groove 7 is vertically downward, and the bottom of the guide groove 7 is used to abut against the conveyor rail 1. In this embodiment, this design plays a role in automatic centering and anti-swaying during mold operation. The inner walls on both sides of the guide groove 7 can continuously make slight contact with the sides of the guide rail or maintain a very small gap, thereby continuously correcting the running trajectory of the mold and preventing it from lateral deviation or jamming, ensuring the stability and straightness of the mold's movement on the production line. This feature is particularly crucial when the mold is lifted and lowered by the airbag 3, as it can guide the mold to accurately fall back to the preset position, avoiding impact or structural damage caused by deviation in the falling position. At the same time, the guide groove 7 also isolates the bottom structure of the mold from any debris that may be present on the conveyor rail 1, providing good protection and playing an important role in improving operational stability, protecting equipment, and extending service life.

[0042] More preferably, hook edges 8 are provided on opposite sides of the opening of the guide groove 7. The hook edges 8 extend along the first direction, are away from the opening of the guide groove 7, and bend upward in the direction of anti-gravity. The hook edges 8 are used to correct the deviation when the segment mold 2 falls back to the conveying guide rail 1 after vibration casting of the segment. The upward bending hook edge 8 structure on both sides of the opening of the guide groove 7 provides a key deviation correction capability for the segment mold 2 during the process of falling back to the guide rail after casting. When the mold is released by the air bag 3 and falls after vibration, even if there is a slight horizontal position deviation, the inner inclined surface of the hook edge 8 will preferentially contact the upper edge of the conveying guide rail 1. Under the action of the mold's own weight, this inclined surface contact will immediately generate a guiding component force, forcing the mold to make a slight horizontal movement, thereby automatically "guiding" and "correcting" the mold to the correct position that is completely aligned with the conveying guide rail 1. This process effectively prevents the edges of the bottom guide groove 7 of the mold from rigidly colliding or jamming with the top surface of the conveyor rail 1, significantly reducing mechanical damage such as edge curling and surface pressure loss caused by falling impact, and protecting the precision of key mating surfaces. At the same time, this self-correcting mechanism reduces reliance on a precise positioning system, lowers the difficulty of centering operations and equipment adjustment time, and improves the smoothness of the production cycle and the reliability of the entire system.

[0043] More preferably, the guide groove 7 is detachably connected to the segment mold 2. As a key wear component in the system that continuously rubs against the guide rail, the detachable design means that when the guide groove 7 wears beyond its limit, there is no need to replace or repair the entire expensive segment mold 2 body; only the worn guide groove 7 component needs to be disassembled and replaced. This greatly reduces long-term maintenance costs and spare parts inventory costs, and minimizes production line downtime caused by maintenance, effectively improving equipment utilization and production efficiency.

[0044] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A duct piece mold casting system with air bag cushioning, characterized by, The utility model relates to a pipeline segment pouring device, which comprises: a conveying rail (1) extending along a first direction, the conveying rail (1) comprising a pipeline segment pouring section; a pipeline segment mold (2) in sliding contact with the conveying rail (1) and supported by the conveying rail (1), the pipeline segment mold (2) comprising a high-frequency vibrator for vibrating the pipeline segment mold (2) located on the pouring section to form a pipeline segment; at least one air bag (3) installed on at least one side of the pipeline segment pouring section, the air bag (3) being used to push the pipeline segment mold (2) to vertically separate the pipeline segment mold (2) from the conveying rail (1).

2. A duct piece formwork system with airbag cushioning according to claim 1, characterized in that, The conveying rail (1) comprises at least two conveying rails (1) arranged along the first direction and spaced apart.

3. A duct piece formwork system with airbag cushioning according to claim 2, characterized in that, The conveying rail (1) comprises a conveying groove (101) extending along the first direction and having an upwardly vertical groove opening, and a plurality of conveying wheels (102) contained in the conveying groove (101) and sequentially and spaced apart along the first direction, the conveying wheels (102) being in sliding contact with the pipeline segment mold (2), and the air bag (3) being installed between the two conveying rails (1).

4. A duct piece formwork system with airbag cushioning according to claim 3, characterized in that, The contact surface of the pipeline segment mold (2) and the conveying rail (1) is provided with at least one arc-shaped positioning groove (4) having a downward groove opening, each of the arc-shaped positioning grooves (4) being arranged between the two conveying rails (1); at least one positioning member (5) is arranged between the two conveying rails (1), each of the positioning members (5) extending along the direction of gravity, the positioning member (5) comprising a first sleeve (501), a second sleeve (502), and an elastic member (503), one end of the first sleeve (501) being connected to the ground, the other end of the first sleeve (501) and one end of the second sleeve (502) being mutually sleeved, the other end of the second sleeve (502) being used to abut against the arc-shaped positioning groove (4) to prevent the pipeline segment mold (2) from excessively deviating from the pouring section, the elastic member (503) being arranged in the first sleeve (501) and the second sleeve (502), the elastic member (503) extending along the direction of gravity, the two ends of the elastic member (503) being respectively in abutment with one end of the first sleeve (501) and one end of the second sleeve (502), and each of the arc-shaped positioning grooves (4) corresponding to each of the positioning members (5).

5. A duct piece formwork system with airbag cushioning according to claim 4, wherein, The air bag (3) has at least one avoiding passage (301) extending along the direction of gravity and penetrating through opposite ends of the air bag (3), each of the avoiding passages (301) being spaced apart from each other and provided with one positioning member (5).

6. A duct piece formwork system with airbag cushioning according to claim 1, characterized in that, The pipe piece mold (2) further comprises a limiting assembly (6), the limiting assembly (6) comprises a first base (601), a first hinged rod (602), a second base (603), a second hinged rod (604), a connecting block (605), an extension rod (606) and a limiting plate (607), the first base (601) is in sliding connection with the conveying guide rail (1), the first hinged rod (602) is connected with the first base (601) and is arranged to extend in the direction of gravity, the second base (603) is connected to the pipe piece mold (2), the second hinged rod (604) is connected with the second base (603) and is arranged to extend in the horizontal direction, the two ends of the connecting block (605) are respectively hinged with the first base (601) and one end of the extension rod (606), the other end of the extension rod (606) is hinged with the second hinged rod (604); the limiting plate (607) is arranged on the opposite sides of the first base (601) to limit the maximum deviation angle of the pipe piece mold (2) around the first hinged rod (602) in the horizontal direction by driving the connecting block (605) through the extension rod (606).

7. A duct piece formwork system with airbag cushioning according to claim 6, characterized in that, The limiting assembly (6) is at least two, and the two limiting assemblies (6) are symmetrically arranged at opposite ends of the pipe piece mold (2).

8. The duct piece mold pouring system with air bag cushioning of claim 1, wherein, The pipe piece mold (2) further comprises a guide groove (7), the guide groove (7) is arranged at the bottom of the pipe piece mold (2) and extends in the first direction, the groove opening of the guide groove (7) is vertically downward, and the groove bottom of the guide groove (7) is used for abutting against the conveying guide rail (1).

9. A duct piece formwork system with airbag cushioning according to claim 8, wherein, The opposite sides of the groove opening of the guide groove (7) are provided with hook edges (8), the hook edges (8) extend in the first direction, the hook edges (8) are bent upward away from the groove opening of the guide groove (7) and in the direction opposite to gravity, and the hook edges (8) are used for correcting the deviation of the pipe piece mold (2) after vibration casting of the pipe piece is completed and falling back to the conveying guide rail (1).

10. A duct piece formwork system with airbag cushioning according to claim 8, wherein, The guide groove (7) is detachably connected to the pipe piece mold (2).

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