Curing kiln and production line

Abstract

The utility model discloses a curing kiln and a production line, and relates to the technical field of prefabricated shield segment production, the curing kiln comprises a curing kiln body, a support frame and a curing mechanism, the curing kiln body forms a curing space for accommodating a shield segment mold; the support frame is arranged in the maintenance space; the maintenance mechanisms are arranged above the shield segment mold at intervals; the maintenance mechanism comprises a connecting end and a free end, the free end is detachably connected with a maintenance film, and the free end can move between an initial position upwards far away from the shield segment mold and a maintenance position downwards close to the shield segment mold and is used for releasing the maintenance film at the maintenance position; by means of the curing mechanism, the curing efficiency and quality of concrete in the production process of the prefabricated shield segment are remarkably improved, and the problem that film covering is uneven due to manual film covering operation is effectively solved. Not only is the requirement for manual operation obviously reduced, but also the production efficiency and the forming quality of the prefabricated shield segment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated shield segment production, in particular to a curing kiln and a production line. Background Art

[0002] With the acceleration of urbanization, the demand for underground engineering construction is increasing. Shield machines, as crucial tunnel construction equipment, produce shield segments that play a crucial role in preventing ground subsidence and the stability of infrastructure such as urban subways. During the prefabrication of shield segments, concrete curing technology has gradually evolved to become a key component in ensuring concrete strength and durability. Traditional concrete curing techniques primarily rely on natural curing and water curing. However, with advances in materials science and process technology, membrane curing technology is gaining increasing attention due to its superior curing effectiveness and efficiency.

[0003] Currently, the technology for covering and curing concrete in shield segment molds mainly uses plastic film or moisturizing materials to cover the concrete surface to retain its moisture and prevent moisture evaporation.

[0004] However, in practical applications, since the membrane covering method is mostly manual, the covering efficiency is low, resulting in low production efficiency of prefabricated shield segments. Utility Model Content

[0005] The main purpose of the utility model is to provide a curing kiln and a production line, aiming to solve the technical problem of low production efficiency of prefabricated shield segments in traditional curing methods.

[0006] To achieve the above-mentioned purpose, the curing kiln proposed in the present invention is used for a shield segment mold, wherein the shield segment mold is filled with concrete;

[0007] The curing kiln comprises:

[0008] A curing kiln body, wherein the curing kiln body forms a curing space for accommodating the shield segment mold;

[0009] A support frame, the support frame is arranged in the maintenance space and framed outside the shield segment mold;

[0010] A maintenance mechanism is arranged at intervals above the shield segment mold; the maintenance mechanism includes a connecting end and a free end, the connecting end is arranged on the support frame, the free end is arranged between the connecting end and the shield segment mold, the free end is detachably connected to a maintenance film, and the free end can move between an initial position upward away from the shield segment mold and a maintenance position downward close to the shield segment mold, and is used to release the maintenance film at the maintenance position.

[0011] In one embodiment, the curing mechanism includes a connecting plate, a lifting drive, a curing frame and a pick-and-place structure. The connecting plate is arranged on the support frame and forms the connecting end. The curing frame is arranged below the connecting plate. The pick-and-place structure is installed on the curing frame. The pick-and-place structure is detachably connected to the curing film. The pick-and-place structure and the curing frame jointly form the free end. The lifting drive is installed on the connecting plate. The output end of the lifting drive is connected to the curing frame and is used to drive the curing frame and the pick-and-place structure to move between the initial position and the curing position.

[0012] In one embodiment, the maintenance frame includes a main frame and multiple mounting tubes, the multiple mounting tubes extend along the width direction of the shield segment mold, and the multiple mounting tubes are installed on the main frame at intervals along the length direction of the shield segment mold. The main frame is connected to the output end of the lifting drive component, and each of the mounting tubes is installed with the picking and placing structure.

[0013] In one embodiment, the connecting plate is formed with a plurality of guide grooves extending vertically, and the plurality of guide grooves are arranged at intervals along the circumference of the connecting plate; the main frame includes a frame body and a plurality of guide rods, the number of the guide rods is consistent with the number of the guide grooves and is arranged one-to-one, each of the guide rods is slidably installed in the guide groove along the vertical direction, the frame body is connected to the output end of the lifting drive member, and the plurality of mounting pipes are installed on the frame body at intervals along the length direction of the shield segment mold.

[0014] In one embodiment, the frame is arched from bottom to top, and has a curvature that matches the shield segment mold.

[0015] In one embodiment, each of the mounting tubes is formed with a plurality of ventilation holes on one side facing the shield segment mold; the picking and placing structure includes a fan and an air duct, the fan is installed on the main frame, the air duct is installed in each of the mounting tubes, and each of the ventilation holes is connected to the fan through the air duct.

[0016] In one embodiment, the support frame includes a transverse slide rail, which extends along the length direction of the shield segment mold, and the connecting end of the maintenance mechanism is slidably mounted on the transverse slide rail along the length direction of the shield segment mold.

[0017] In one embodiment, the curing film is made of plastic.

[0018] In one embodiment, the orthographic projection area of ​​the curing film at the bottom of the curing kiln body is A, the orthographic projection area of ​​the shield segment mold at the bottom of the curing kiln body is B, and A>B.

[0019] The utility model also provides a production line, which uses the above-mentioned curing kiln.

[0020] The technical solution of this utility model significantly improves the curing efficiency and quality of concrete during the production of precast shield segments through the use of a curing mechanism. The free end of the curing mechanism allows the curing film to evenly cover the surface of the concrete in the shield segment mold, effectively avoiding the problem of uneven coating caused by manual coating operations. In addition, the curing kiln can provide a stable curing environment for the concrete in the precast shield segment mold. This not only significantly reduces the need for manual operation, but also improves the production efficiency of precast shield segments, reduces the workload of operators, and improves the molding quality of precast shield segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of an embodiment of a curing kiln provided by the present invention;

[0023] Figure 2 A structural diagram of an embodiment of a main frame provided by the present utility model;

[0024] Figure 3 This is a structural schematic diagram of an embodiment of a ventilation hole provided by the present invention.

[0025] Description of Figure Numbers:

[0026] 10. Shield segment mold;

[0027] 100. Support frame; 200. Maintenance mechanism; 210. Connecting plate; 220. Lifting drive member; 230. Maintenance frame; 240. Pick-up and placement structure; 231. Main frame; 232. Mounting pipe; 211. Guide groove; 233. Frame; 234. Guide rod; 201. Ventilation hole; 110. Horizontal slide rail.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] Currently, the technology for covering and curing concrete in shield segment molds mainly uses plastic film or moisturizing materials to cover the concrete surface to retain its moisture and prevent moisture evaporation.

[0033] However, in practice, the low efficiency of membrane application, often due to manual application, leads to low production efficiency of precast segments. Manual membrane application is not only time-consuming and labor-intensive, but also prone to uneven coverage, resulting in inconsistent concrete curing and, in turn, impacting the strength and durability of the precast shield segments. Furthermore, air pockets form during contact between the membrane and concrete, reducing the concrete's moisture retention capacity and causing quality issues such as surface cracking in the precast shield segments.

[0034] In order to solve this technical problem, the utility model proposes a curing kiln and a production line.

[0035] See also Figures 1 to 3In one embodiment of the present invention, the curing kiln is used for a shield segment mold 10, and the shield segment mold 10 is filled with concrete;

[0036] The curing kiln includes a curing kiln body, a support frame 100 and a curing mechanism 200. The curing kiln body forms a curing space for accommodating the shield segment mold 10; the support frame 100 is arranged in the curing space and framed outside the shield segment mold 10; the curing mechanism 200 is arranged at intervals above the shield segment mold 10; the curing mechanism 200 includes a connecting end and a free end, the connecting end is arranged on the support frame 10, and the free end is arranged between the connecting end and the shield segment mold 10. The free end is detachably connected to a curing film, and the free end can move between an initial position upward away from the shield segment mold 10 and a curing position downward close to the shield segment mold 10, and is used to release the curing film at the curing position.

[0037] It should be noted that the detachable connection method between the curing film and the free end can be, but is not limited to, negative pressure adsorption or bonding. Negative pressure adsorption is achieved by a negative pressure device in the prior art, and bonding is achieved by a pressure-sensitive adhesive in the prior art.

[0038] Specifically, the curing kiln is used for shield segment molds 10 and comprises a kiln body, a support frame 100, and a curing mechanism 200. The kiln body forms a curing space specifically designed to house the shield segment molds 10, effectively isolating them from the external environment and ensuring consistent curing conditions. This prevents adverse effects of external factors on concrete curing and improves the production stability of prefabricated shield segments.

[0039] The support frame 100 enhances the overall structural stability of the curing kiln. Positioned outside the shield segment mold 10, it prevents displacement or deformation of the shield segment mold 10 during curing due to handling or transportation. Furthermore, the support frame 100 enables more flexible operation of the curing mechanism 200, thereby improving the efficiency of curing the concrete poured into the shield segment mold 10.

[0040] The curing mechanism 200 has a connecting end and a free end. The connecting end is fixed to the support frame 100, while the free end is movable between the connecting end and the shield segment mold 10. The free end is detachably connected to the curing film, allowing the film to efficiently cover the concrete surface. During the curing process, the free end can be moved between an initial position and a curing position, allowing the curing film to be released onto the concrete surface, ensuring uniform coverage.

[0041] More specifically, when the free end of the curing mechanism 200 reaches the curing position, it releases the curing film onto the surface of the shield segment mold 10, i.e., the top surface of the concrete within the shield segment mold 10. This process significantly improves film coverage efficiency and avoids the unevenness and inefficiency associated with manual operation. Furthermore, the release and retraction of the curing film are both automatically performed by the curing mechanism 200, eliminating the influence of human factors and further enhancing the automation level of prefabricated shield segment production.

[0042] In the technical solution provided by the present invention, the curing efficiency and quality of concrete during the production of precast shield segments are significantly improved through the curing mechanism 200. The free end of the curing mechanism 200 enables the curing film to evenly cover the surface of the concrete in the shield segment mold 10, effectively avoiding the problem of uneven film coating caused by manual film coating operations. In addition, the curing kiln can provide a stable curing environment for the concrete in the precast shield segment mold 10. This not only significantly reduces the need for manual operation, but also improves the production efficiency of precast shield segments, reduces the workload of operators, and improves the molding quality of precast shield segments.

[0043] Please continue reading Figure 1 In an embodiment of the present utility model, the curing mechanism 200 includes a connecting plate 210, a lifting drive member 220, a curing frame 230 and a pick-and-place structure 240. The connecting plate 210 is arranged on the support frame 100 and forms a connecting end. The curing frame 230 is arranged below the connecting plate 210. The pick-and-place structure 240 is installed on the curing frame 230. The pick-and-place structure 240 is detachably connected to the curing film. The pick-and-place structure 240 and the curing frame 230 jointly form a free end. The lifting drive member 220 is installed on the connecting plate 210. The output end of the lifting drive member 220 is connected to the curing frame 230 and is used to drive the curing frame 230 and the pick-and-place structure 240 to move between the initial position and the curing position.

[0044] Specifically, the connecting plate 210 is mounted on the support frame 100, forming a connecting end and providing stable support for the entire curing mechanism 200. The curing frame 230 is located below the connecting plate 210 and is driven by the lifting drive 220, ensuring that the curing membrane can move smoothly between the initial position and the curing position, thereby curing the concrete in the shield segment mold 10.

[0045] More specifically, the output end of the lift drive 220 is connected to the curing frame 230, driving the frame 230 up and down between its initial position and its curing position. When the curing frame 230 descends to the curing position, the curing film quickly and evenly covers the upper surface of the concrete in the shield segment mold 10, thereby improving the curing effect and ensuring the strength and durability of the concrete in the shield segment mold 10.

[0046] The access mechanism 240 is mounted on the curing frame 230 and is detachably connected to the curing film. This allows for quick release and retraction of the curing film during the curing process. This not only improves operational efficiency but also adapts to the needs of different molds, further optimizing the production process.

[0047] In addition, the connecting plate 210 provides additional stability for the release process of the curing film, ensuring that the free end does not wobble or move during operation.

[0048] Please continue reading Figure 2 In an embodiment of the present utility model, the curing frame 230 includes a main frame 231 and a plurality of mounting tubes 232. The plurality of mounting tubes 232 extend along the width direction of the shield segment mold 10. The plurality of mounting tubes 232 are installed on the main frame 231 at intervals along the length direction of the shield segment mold 10. The main frame 231 is connected to the output end of the lifting drive 220. Each mounting tube 232 is installed with a pick-up and placement structure 240.

[0049] Specifically, multiple mounting tubes 232 extend along the width of the shield segment mold 10 and are installed at intervals along the length of the mold on the main frame 231. The curing frame 230 evenly distributes the curing film within a specified range, ensuring more uniform coverage. This prevents the concrete in the shield segment mold 10 from being partially undercured. It also ensures that the curing frame 230 applies force evenly and comprehensively when releasing the curing film to cover and protect the concrete in the shield segment mold 10, thereby improving curing efficiency and effectively reducing the loss of concrete strength and durability caused by uneven curing, thereby enhancing the quality of the finished prefabricated shield segments.

[0050] More specifically, the main frame 231 is connected to the output end of the elevating drive 220, allowing the curing frame 230 to move up and down under the control of the elevating drive 220. This ability to move up and down allows the curing membrane to quickly switch between the initial and curing positions, allowing for timely removal or covering of the concrete surface, thereby achieving an efficient curing process.

[0051] Furthermore, each mounting tube 232 is equipped with a pick-and-place mechanism 240. This mechanism allows for the rapid release of the curing film when needed and the rapid recovery of the film after curing. This not only improves operational efficiency but also adapts to the curing requirements of different shield segment molds 10, reducing the need for manual intervention.

[0052] Please continue reading Figure 2In an embodiment of the present utility model, the connecting plate 210 is formed with a plurality of guide grooves 211 extending vertically, and the plurality of guide grooves 211 are arranged at intervals along the circumference of the connecting plate 210; the main frame 231 includes a frame body 233 and a plurality of guide rods 234, the number of the guide rods 234 is consistent with the number of the guide grooves 211 and is arranged one-to-one, and each guide rod 234 is slidably installed in the guide groove 211 along the vertical direction, the frame body 233 is connected to the output end of the lifting drive member 220, and a plurality of mounting pipes 232 are installed on the frame body 233 at intervals along the length direction of the shield segment mold 10.

[0053] Specifically, the connecting plate 210 is formed with a plurality of guide grooves 211 extending vertically. These guide grooves 211 are arranged at intervals along the circumference of the connecting plate 210 to make the movement of the curing frame 230 more stable and to effectively guide the curing frame 230 to maintain vertical alignment during lifting and lowering, thereby avoiding the curing film being in an offset state when released due to tilting or swinging, resulting in the concrete in the shield segment mold 10 not being evenly covered by the curing film.

[0054] More specifically, the main frame 231 includes a frame body 233 and a plurality of guide rods 234. The number of guide rods 234 matches the number of guide slots 211, and they are arranged in a one-to-one correspondence to ensure that each guide rod 234 can slide within its corresponding guide slot 211. This ensures that the curing frame 230 can move up and down smoothly under the action of the lifting drive 220, maintaining the stability and accuracy of the structure, and further improving the efficiency and accuracy of the curing film coverage.

[0055] Guide rods 234 are vertically slidably mounted within guide slots 211, controlling the position of curing frame 230 during the lifting process and preventing alignment errors caused by free movement. Furthermore, frame 233 is connected to the output end of lift drive 220, enabling efficient movement of the entire curing frame 230. This ensures that the curing film is quickly and evenly applied to the target surface during concrete coating, minimizing errors caused by manual operation.

[0056] Furthermore, multiple mounting tubes 232 are installed on the frame 233 at intervals along the length of the shield segment mold 10, ensuring that the curing film is evenly distributed throughout the mold. This not only increases the effective coverage of the curing film but also ensures uniform curing of the concrete in the shield segment mold 10 during the curing process, effectively improving the curing effect and avoiding quality issues caused by insufficient local coverage.

[0057] In the embodiment of the present invention, the frame 233 is arched upward from bottom to top, and has a curvature that matches the shield segment mold 10 .

[0058] Specifically, the frame 233 has a curvature that is adapted to the shield segment mold 10, ensuring that the curing frame 230 can better fit the top surface shape of the concrete in the shield segment mold 10 to provide a more uniform curing effect.

[0059] More specifically, the arched shape of the frame 233 effectively reduces the tension of the curing film during the covering process when covering the concrete, reduces local drying caused by the lack of contact between the curing film and the concrete surface, and ensures that the curing film can function evenly throughout the entire curing process.

[0060] Furthermore, the curvature of frame 233 not only conforms to the shape of the shield segment mold 10 but also provides excellent support for the suspension of the curing membrane, effectively preventing the membrane from sagging due to gravity. This eliminates gaps between the curing membrane and the concrete surface, ensuring uniform curing. The arch of frame 233 also facilitates the rapid deployment and retraction of the curing membrane, improving the ease and efficiency of operation of the curing mechanism 200.

[0061] Please continue reading Figure 3 In an embodiment of the present invention, each mounting tube 232 is formed with a plurality of ventilation holes 201 on one side facing the shield segment mold 10; the pick-up and placement structure 240 includes a fan and an air duct, the fan is installed on the main frame 231, and an air duct is installed in each mounting tube 232, and each ventilation hole 201 is connected to the fan through the air duct.

[0062] It should be noted that the fan is existing technology.

[0063] Specifically, the fan is used to blow air through the air duct to each ventilation hole 201 when the mounting tube 232 is in the release position, so that the curing film is detached from the mounting tube 232 toward the side of the shield segment mold 10. During this process, the fan continues to work, and the curing film toward the side of the mounting tube 232 continues to receive the wind pressure of the fan and adheres to the concrete surface in the shield segment mold 10, thereby reducing the air interlayer between the curing film and the concrete surface in the shield segment mold 10. By guiding the airflow, the release of the curing film and its adhesion to the concrete surface are improved, which not only improves the moisture retention capacity of the concrete, but also improves the quality of the prefabricated shield segments. When recovering the curing film, the wind pressure of the fan can also be used to absorb the curing film covering the shield segment mold 10 from the release position and move it to the initial position, thereby completing the recovery of the curing film, improving the recovery efficiency of the curing film, and further optimizing the curing process of the concrete in the shield segment mold 10.

[0064] In an embodiment of the present invention, the support frame 100 includes a transverse slide rail 110, which extends along the length direction of the shield segment mold 10, and the connecting end of the maintenance mechanism 200 is slidably installed on the transverse slide rail 110 along the length direction of the shield segment mold 10.

[0065] Specifically, the transverse slide rail 110 enables the maintenance mechanism 200 to move along the length direction of the shield segment mold 10, so that the maintenance mechanism 200 can flexibly adjust its position in different positions and different shapes of the shield segment mold 10 to achieve more precise maintenance operations.

[0066] Furthermore, the transverse slide rails 110 can effectively reduce errors in the curing film during application, allowing the film to be more evenly applied to the upper surface of the concrete in the shield segment mold 10. Operators can more easily adjust the position of the curing mechanism 200 to ensure the proper coverage of the curing film, ensuring that the concrete in the shield segment mold 10 achieves optimal moisture retention and strength improvement during curing.

[0067] In an embodiment of the present invention, the curing film is made of plastic.

[0068] It should be noted that the curing film is a polyethylene (PE) film, a polyvinyl chloride (PVC) film, a polypropylene (PP) film or a composite material film in the prior art.

[0069] Specifically, plastic is used as the curing membrane material primarily because of its flexibility, lightness, and water resistance, making it adaptable to various concrete surfaces. Plastic curing membranes effectively prevent water evaporation, maintaining concrete moisture and providing a favorable environment for concrete curing.

[0070] Furthermore, the plastic's corrosion resistance enhances the film's suitability for a wide range of environmental conditions, protecting it from chemical influences over extended periods of use while maintaining its functionality and stability. This material also facilitates the production and processing of the film, enabling customization of film thicknesses and sizes to meet the specific needs of individual projects.

[0071] In the embodiment of the present invention, the orthographic projection area of ​​the curing film at the bottom of the curing kiln body is A, and the orthographic projection area of ​​the shield segment mold 10 at the bottom of the curing kiln body is B, and A>B.

[0072] It should be noted that the orthographic projection area here represents that after the free end releases the curing film at the curing position, the curing film can completely cover the top surface of the concrete in the shield segment mold 10.

[0073] Specifically, since the curing film can completely cover the concrete surface in the shield segment mold 10 (i.e., the part exposed on the top surface of the shield segment mold 10), uneven coverage is avoided, so that the concrete in the same shield segment mold 10 has a consistent curing effect, thereby improving the strength and durability of the prefabricated shield segments.

[0074] More specifically, by completely covering the upper surface of the concrete in the shield segment mold 10 with a curing membrane, the membrane effectively prevents moisture evaporation, providing a stable curing environment and ensuring consistent moisture levels throughout the curing period. This improves the curing effect of the concrete within the same shield segment mold 10, enhancing its strength and durability.

[0075] In addition, complete coverage reduces the risk of cracks and insufficient strength caused by local drying or uneven curing, ensuring the overall quality of the precast shield segments.

[0076] The present invention also proposes a production line that utilizes the aforementioned curing kiln. The specific structure of the curing kiln is similar to that of the aforementioned embodiments. Since this production line utilizes all of the technical solutions of all of the aforementioned embodiments, it possesses at least all of the beneficial effects brought about by the technical solutions of the aforementioned embodiments, which will not be detailed here. The production line includes multiple automated processes, such as concrete pouring, installation and release of curing membranes, and monitoring and adjustment of the curing environment, ensuring the efficiency and consistency of the production process. Combined with the aforementioned curing kiln, this production line enables full-process monitoring and curing of shield segments, thereby improving the quality and production capacity of prefabricated shield segments and meeting the needs of various projects.

[0077] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A curing kiln, characterized in that: Used for shield segment mold, the shield segment mold is filled with concrete; The curing kiln comprises: A curing kiln body, wherein the curing kiln body forms a curing space for accommodating the shield segment mold; A support frame, the support frame is arranged in the maintenance space and framed outside the shield segment mold; A maintenance mechanism is arranged at intervals above the shield segment mold; the maintenance mechanism includes a connecting end and a free end, the connecting end is arranged on the support frame, the free end is arranged between the connecting end and the shield segment mold, the free end is detachably connected to a maintenance film, and the free end can move between an initial position upward away from the shield segment mold and a maintenance position downward close to the shield segment mold, and is used to release the maintenance film at the maintenance position.

2. The curing kiln according to claim 1, wherein: The curing mechanism includes a connecting plate, a lifting drive, a curing frame and a pick-and-place structure. The connecting plate is arranged on the support frame and forms the connecting end. The curing frame is arranged below the connecting plate. The pick-and-place structure is installed on the curing frame. The pick-and-place structure is detachably connected to the curing film. The pick-and-place structure and the curing frame together form the free end. The lifting drive is installed on the connecting plate. The output end of the lifting drive is connected to the curing frame and is used to drive the curing frame and the pick-and-place structure to move between the initial position and the curing position.

3. The curing kiln according to claim 2, wherein: The maintenance frame includes a main frame and multiple mounting tubes, the multiple mounting tubes extend along the width direction of the shield segment mold, and the multiple mounting tubes are installed on the main frame at intervals along the length direction of the shield segment mold. The main frame is connected to the output end of the lifting drive component, and each of the mounting tubes is installed with the pick-up and placement structure.

4. The curing kiln according to claim 3, characterized in that: The connecting plate is formed with a plurality of guide grooves extending vertically, and the plurality of guide grooves are arranged at intervals along the circumference of the connecting plate; the main frame includes a frame body and a plurality of guide rods, the number of the guide rods is consistent with the number of the guide grooves and is arranged one-to-one, each of the guide rods is slidably installed in the guide groove along the vertical direction, the frame body is connected to the output end of the lifting drive member, and the plurality of mounting pipes are installed on the frame body at intervals along the length direction of the shield segment mold.

5. The curing kiln according to claim 4, characterized in that: The frame is arched upward from bottom to top, and has a curvature that matches the shield segment mold.

6. The curing kiln according to claim 3 or 4, characterized in that: Each of the mounting tubes is formed with a plurality of ventilation holes on one side facing the shield segment mold; the pick-up and placement structure includes a fan and an air duct, the fan is installed on the main frame, the air duct is installed in each of the mounting tubes, and each of the ventilation holes is connected to the fan through the air duct.

7. The curing kiln according to any one of claims 1 to 5, characterized in that: The support frame includes a transverse slide rail, which extends along the length direction of the shield segment mold. The connecting end of the maintenance mechanism is slidably installed on the transverse slide rail along the length direction of the shield segment mold.

8. The curing kiln according to any one of claims 1 to 5, characterized in that: The curing film is made of plastic.

9. The curing kiln according to any one of claims 1 to 5, characterized in that: The orthographic projection area of ​​the curing film at the bottom of the curing kiln body is A, and the orthographic projection area of ​​the shield segment mold at the bottom of the curing kiln body is B, and A>B.

10. A production line, characterized in that: The curing kiln according to any one of claims 1 to 9 is used.

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