Duct piece production line

Abstract

The invention discloses a duct piece production line, and relates to the technical field of prefabricated duct piece production, the duct piece production line comprises a steam curing kiln body, a curing kiln body, a curing mechanism, a transfer mechanism and a plurality of steam curing mechanisms, the plurality of steam curing mechanisms are arranged at the top of the steam curing kiln body; the curing mechanisms are arranged above the shield segment mold at intervals and are mounted on the curing kiln body; the maintenance mechanism comprises a connecting end and a free end, and the free end is used for releasing the maintenance film at the maintenance position; the transfer mechanism is slidably arranged between the steam curing kiln body and the curing kiln body and is used for transferring the shield segment mold from the steam curing space to the curing space; through the synergistic effect of the steam curing kiln body and the curing kiln body, an efficient prefabricated shield segment production line is formed, the overall efficiency of steam curing and curing is optimized, non-uniformity caused by manual operation is remarkably reduced, and the production efficiency and quality of prefabricated shield segments are improved.

Description

Technical Field

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

[0002] As a key component manufacturing process in modern tunnel engineering, prefabricated shield segment technology has undergone a transformation from traditional manual production to mechanized production. With the acceleration of urbanization and the increasing demand for infrastructure construction such as subways and underground pipelines, the application of prefabricated shield segments has become more and more extensive.

[0003] At present, the production of prefabricated shield segments mainly adopts steam curing technology to improve the early strength and overall quality of concrete. This technology uses steam to make concrete reach the required strength standard in a short time, and then covers and cures it with a curing film, so that the prefabricated shield segments can meet the requirements of engineering construction.

[0004] However, due to poor curing effect, uneven curing of concrete is likely to occur, thus affecting the strength and durability of concrete, and prefabricated shield segments are prone to concrete quality problems. Therefore, in actual production, how to balance the curing effect with the management of the curing process to ensure the quality of concrete molding has become the main bottleneck restricting the current production efficiency and quality of prefabricated shield segments. This problem not only affects the production cost, but also has a serious impact on subsequent construction. Summary of the invention

[0005] The main purpose of the present invention is to propose a segment production line, aiming to solve the concrete quality problems caused by poor steam curing effect and uneven curing in the current production process of prefabricated shield segments.

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

[0007] The segment production line comprises:

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

[0009] A plurality of steaming curing mechanisms, each of which is accommodated in the steaming curing space, and each of which is arranged at intervals on the top of the steaming curing kiln body along the length direction of the shield segment mold;

[0010] A curing kiln body, wherein the curing kiln body is spaced apart from the steam curing kiln body, and the curing kiln body forms a curing space for accommodating the shield segment mold;

[0011] A support frame, the support frame is arranged in the maintenance space and framed outside the shield segment mold;

[0012] A curing mechanism, wherein the curing mechanism is arranged at intervals above the shield segment mold; the curing mechanism comprises a connecting end and a free end, wherein the connecting end is arranged on the support frame, and the free end is arranged between the connecting end and the shield segment mold, and the free end is detachably connected with a curing film, and the free end can move between an initial position upwardly away from the shield segment mold and a curing position downwardly close to the shield segment mold, and is used to release the curing film at the curing position;

[0013] A transfer mechanism, wherein the shield segment mold is detachably mounted on the transfer mechanism, the transfer mechanism is slidably disposed between the steaming kiln body and the curing kiln body, and is used to transfer the shield segment mold from the steaming space to the curing space.

[0014] In one embodiment, the concrete is coated with a segment steel cage and a plurality of reserved pipes, a side wall of the shield segment mold is provided with a plurality of reserved holes, the number of the reserved holes is consistent with the number of the reserved pipes and is arranged one-to-one, and each of the reserved holes is connected to the corresponding reserved pipe;

[0015] A bracket is arranged in the steaming space, the bracket is connected to the inner wall of the steaming kiln body, the bracket is arranged at intervals on the side of the shield segment mold where a plurality of the reserved holes are opened, a plurality of temperature measuring structures are arranged on the bracket, the number of the temperature measuring structures is consistent with the number of the reserved holes and is arranged one by one, each of the temperature measuring structures extends into the corresponding reserved hole and the corresponding reserved pipeline; the plurality of temperature measuring structures and the plurality of steaming mechanisms are electrically connected to the control mechanism.

[0016] In one embodiment, each of the temperature measuring structures includes a mounting tube and a temperature sensor, one end of the mounting tube is detachably connected to the bracket, the other end of the mounting tube is formed with a groove, the temperature sensor is inserted into the groove, the temperature sensor extends into the corresponding reserved hole and the corresponding reserved pipe, and the temperature sensor is electrically connected to the control mechanism.

[0017] In one embodiment, each of the steaming mechanisms includes a hanger, a mounting plate and a steam generating device, one end of the hanger is mounted on the top of the steaming kiln body, the other end of the hanger is connected to the mounting plate, the steam generating device is mounted on the mounting plate, and the steam generating device is electrically connected to the control mechanism.

[0018] In one embodiment, the mounting plate is spaced above the shield segment mold, the mounting plate has a curvature that matches the shield segment mold, and a plurality of ventilation holes are formed on the mounting plate, and the plurality of ventilation holes are connected to the steam generating device through pipes.

[0019] 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 supporting 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 mechanism 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.

[0020] In one embodiment, the maintenance frame includes a main frame and a plurality of mounting tubes, wherein the plurality of mounting tubes extend along the width direction of the shield segment mold, and the plurality of mounting tubes are installed on the main frame at intervals along the length direction of the shield segment mold, and 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.

[0021] 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 are 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.

[0022] 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.

[0023] 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.

[0024] The technical solution of the present invention forms an efficient prefabricated shield segment production line through the synergistic effect of the steaming kiln body and the curing kiln body. The multiple steaming mechanisms evenly arranged in the steaming kiln body can effectively provide steam for the concrete in the shield segment mold, ensuring that the concrete is evenly heated during the entire heating process, thereby improving its early strength and overall quality. The transfer mechanism transfers the steamed mold to the curing kiln. In the curing space, the support frame provides stable support for the curing mechanism to ensure the reliability of the curing process. The curing mechanism achieves efficient coverage of the curing film through the flexible movement of the free end, so that it can evenly cover the concrete surface, improving the uniformity and effectiveness of the curing. It not only optimizes the overall efficiency of steaming and curing, but also significantly reduces the unevenness caused by human operation, thereby improving the production efficiency and quality of prefabricated shield segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0026] Figure 1 A structural schematic diagram of an embodiment of a pipe segment production line provided by the present invention;

[0027] Figure 2 A schematic structural diagram of an embodiment of a steaming kiln body provided by the present invention;

[0028] Figure 3 A schematic structural diagram of another embodiment of the steaming kiln body provided by the present invention;

[0029] Figure 4 A schematic structural diagram of an embodiment of a shield segment mold provided by the present invention;

[0030] Figure 5 A schematic diagram of the structure of an embodiment of a control mechanism provided by the present invention;

[0031] Figure 6 A structural schematic diagram of another embodiment of a segment production line provided by the present invention;

[0032] Figure 7 A schematic structural diagram of an embodiment of a maintenance mechanism provided by the present invention;

[0033] Figure 8 A schematic structural diagram of an embodiment of a ventilation hole provided by the present invention.

[0034] Description of Figure Numbers:

[0035] 10. Shield segment mold; 11. Reserved hole; 20. Steaming kiln body; 21. Steaming space; 30. Steaming mechanism; 40. Temperature measurement structure; 50. Bracket; 60. Control mechanism; 41. Mounting cylinder; 42. Temperature sensor; 22. Hanging rack; 23. Mounting plate; 24. Steam generating device; 25. Ventilation hole; 26. Accommodating space;

[0036] 100, support frame; 200, maintenance mechanism; 210, connecting plate; 220, lifting drive member; 230, maintenance frame; 240, pick-and-place structure; 231, main frame; 232, mounting pipe; 211, guide groove; 233, frame body; 234, guide rod; 201, ventilation hole; 110, horizontal slide rail.

[0037] 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

[0038] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0039] 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 indication will also change accordingly.

[0040] 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 used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. 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 contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] At present, the production of prefabricated shield segments mainly adopts steam curing technology to improve the early strength and overall quality of concrete. This technology uses steam to make concrete reach the required strength standard in a short time, and then covers and cures it with a curing film, so that the prefabricated shield segments can meet the requirements of engineering construction.

[0042] However, due to poor curing effect, uneven curing of concrete is likely to occur, thus affecting the strength and durability of concrete, and prefabricated shield segments are prone to concrete quality problems. Therefore, in actual production, how to balance the curing effect with the management of the curing process to ensure the quality of concrete molding has become the main bottleneck restricting the current production efficiency and quality of prefabricated shield segments. This problem not only affects the production cost, but also has a serious impact on subsequent construction.

[0043] In order to solve this technical problem, the present invention proposes a segment production line.

[0044] See also Figures 1 to 8 In one embodiment of the present invention, the segment production line is used for a shield segment mold 10, and the shield segment mold 10 is filled with concrete; the segment production line includes a steaming kiln body 20, a curing kiln body, a support frame 100, a curing mechanism 200, a transfer mechanism and a plurality of steaming mechanisms 30, the steaming kiln body 20 forms a steaming space 21 for accommodating the shield segment mold 10; the plurality of steaming mechanisms 30 are all accommodated in the steaming space 21, and the plurality of steaming mechanisms 30 are arranged at intervals on the top of the steaming kiln body 20 along the length direction of the shield segment mold 10; the curing kiln body is arranged at intervals from the steaming kiln body 20, and 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 The shield segment mold 10 is in the space, and the frame is arranged 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 supporting frame 100, the free end is arranged between the connecting end and the shield segment mold 10, the free end is detachably connected with a curing film, the free end can move between an initial position away from the shield segment mold 10 upwards and a curing position close to the shield segment mold 10 downwards, and is used to release the curing film at the curing position; the shield segment mold 10 is detachably installed on the transfer mechanism, the transfer mechanism is slidably arranged between the steaming kiln body 20 and the curing kiln body, and is used to transfer the shield segment mold 10 from the steaming space 21 to the curing space.

[0045] It should be noted that the curing film and the free end can be detachably connected by negative pressure adsorption or bonding, wherein the negative pressure adsorption is achieved by a negative pressure device in the prior art, and the bonding is achieved by a pressure-sensitive adhesive in the prior art. The transport mechanism can be, but is not limited to, a transport vehicle or transport machinery in the prior art.

[0046] Specifically, the segment production line includes a steaming kiln body 20, a curing kiln body, a support frame 100, a curing mechanism 200, a transfer mechanism and a plurality of steaming mechanisms 30. The steaming kiln body 20 provides a steaming space 21 for accommodating the shield segment mold 10. The plurality of steaming mechanisms 30 are evenly arranged on the top of the steaming kiln along the length direction of the mold to ensure that the concrete is evenly heated during the entire heating process, thereby improving the steaming effect, making the heat distribution during the steaming process more uniform, and significantly improving the molding quality of the concrete.

[0047] In the curing stage, the transfer mechanism transfers the steam-cured concrete together with the shield segment mold 10 to the curing kiln, and the curing kiln forms a curing space for accommodating the shield segment mold 10. The support frame 100 is placed in the curing space to provide stable support for the curing mechanism 200. The curing mechanism 200 is arranged above the shield segment mold 10, and includes a connecting end and a free end. The connecting end is connected to the support frame 100, and the free end can drive the curing film detachably connected thereto to move up and down between the initial position and the release position. The curing film effectively covers the concrete to achieve uniform curing, further enhancing the strength and durability of the concrete.

[0048] In addition, the setting of the transfer mechanism ensures the smooth transfer of the mold, and moves the mold from the steaming space 21 to the curing space. Through the reasonable combination of these structures, the segment production line of the present invention not only improves production efficiency, but also ensures that the prefabricated shield segments meet high standards in terms of strength and durability.

[0049] More specifically, a plurality of steaming curing mechanisms 30 are arranged in the steaming curing space 21 and are arranged at intervals along the length direction of the shield segment mold 10. This ensures that the steam can be evenly distributed over the entire shield segment mold 10, thereby improving the uniformity of heating of the concrete during the steaming curing process. In addition, each steaming curing mechanism 30 can be operated independently, further enhancing the flexibility and adaptability of the steaming curing kiln, and helping to optimize the steaming curing for different production environments and concrete characteristics.

[0050] The support frame 100 enhances the overall structural stability of the curing kiln, and the frame is arranged outside the shield segment mold 10, ensuring that the shield segment mold 10 will not be displaced or deformed due to operation or transportation during the curing process. At the same time, the support frame 100 enables the curing mechanism 200 to operate more flexibly, thereby improving the curing efficiency of the poured concrete in the shield segment mold 10.

[0051] The maintenance mechanism 200 has a connecting end and a free end. The connecting end is fixed to the support frame 100, and the free end can move between the connecting end and the shield segment mold 10. The free end is detachably connected to the curing film so that the curing film can efficiently cover the concrete surface. During the curing process, the free end can move between the initial position and the curing position so that the curing film can be released to the concrete surface to ensure uniform coverage. When the free end of the maintenance mechanism 200 reaches the curing position, it releases the curing film to the surface of the shield segment mold 10, that is, the top surface of the concrete in the shield segment mold 10. This process significantly improves the coverage efficiency of the film and avoids the problems of unevenness and inefficiency caused by manual operation. In addition, the release and retraction of the curing film are automatically completed by the maintenance mechanism 200, eliminating the influence of human factors, thereby improving the automation level of prefabricated shield segment production.

[0052] In the technical solution provided by the present invention, an efficient prefabricated shield segment production line is formed through the synergistic effect of the steaming kiln body 20 and the curing kiln body. The multiple steaming curing mechanisms 30 evenly arranged in the steaming kiln body 20 can effectively provide steam for the concrete in the shield segment mold 10, ensuring that the concrete is evenly heated during the entire heating process, thereby improving its early strength and overall quality. The transfer mechanism transfers the steamed mold to the curing kiln. In the curing space, the support frame 100 provides stable support for the curing mechanism 200 to ensure the reliability of the curing process. The curing mechanism 200 achieves efficient coverage of the curing film through the flexible movement of the free end, so that it can evenly cover the concrete surface, improving the uniformity and effectiveness of the curing. Not only does it optimize the overall efficiency of steaming and curing, but it also significantly reduces the unevenness caused by human operation, thereby improving the production efficiency and quality of prefabricated shield segments.

[0053] As an optional implementation of this embodiment, the curing film is made of plastic.

[0054] 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.

[0055] Specifically, plastic parts are used as the material of the curing film mainly because plastic materials have good flexibility, lightness and water resistance, so that they can better adapt to concrete surfaces of different shapes in practical applications. Plastic curing film can effectively prevent water evaporation, maintain the humidity of concrete, and provide a good environment for concrete curing.

[0056] In addition, the anti-corrosion properties of plastic materials also enhance the applicability of the curing film in various environmental conditions, so that it will not be affected by chemicals during long-term use, maintaining its functionality and stability. The use of this material also facilitates the production and processing of the curing film, and the film of different thicknesses and sizes can be customized according to actual needs to meet the needs of different projects.

[0057] As another optional implementation of this embodiment, 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.

[0058] It should be noted that the orthographic projection area here means 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.

[0059] 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 can be 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.

[0060] More specifically, by completely covering the upper surface of the concrete in the shield segment mold 10 with the curing film, the curing film can effectively prevent the evaporation of water, provide a stable curing environment, and thus ensure that the concrete obtains a consistent humidity during the curing period, thereby improving the curing effect of the concrete in the same shield segment mold 10, and improving the strength and durability of the concrete.

[0061] In addition, complete coverage reduces the risk of cracks and insufficient strength that may result from local drying or uneven curing, ensuring the overall quality of the prefabricated shield segments.

[0062] Please continue reading Figure 1 , Figure 4 and Figure 5 In an embodiment of the present invention, concrete is coated with a segment steel cage and a plurality of reserved pipes, a side wall of a shield segment mold 10 is provided with a plurality of reserved holes 11, the number of the reserved holes 11 is consistent with the number of the reserved pipes and is arranged one-to-one, and each reserved hole 11 is connected to its corresponding reserved pipe; a bracket 50 is provided in the steaming space 21, the bracket 50 is connected to the inner wall of the steaming kiln body 20, the bracket 50 is arranged at intervals on one side of the shield segment mold 10 where the plurality of reserved holes 11 are opened, a plurality of temperature measuring structures 40 are provided on the bracket 50, the number of the temperature measuring structures 40 is consistent with the number of the reserved holes 11 and is arranged one-to-one, and each temperature measuring structure 40 extends into the corresponding reserved hole 11 and the corresponding reserved pipe; the plurality of temperature measuring structures 40 and the plurality of steaming mechanisms 30 are electrically connected to the control mechanism 60.

[0063] Specifically, a plurality of temperature measuring structures 40 are arranged on a bracket 50 and connected to the inner wall of the steaming kiln body 20. The number of the temperature measuring structures 40 is consistent with the number of the reserved holes 11 to ensure that each temperature measuring structure 40 can accurately monitor the temperature of the corresponding area. The temperature measuring structure 40 extends into the corresponding reserved hole 11 and the reserved pipe to obtain the temperature information of the concrete in real time, and transmits the data to the control mechanism 60 for processing. This real-time monitoring can effectively reflect the actual temperature change of the concrete during the steaming process, adjust the working state of the steaming mechanism 30 in time, and ensure that the temperature of each area of ​​the concrete is kept within the preset required range.

[0064] In addition, the multiple temperature measuring structures 40 and the multiple steaming curing mechanisms 30 are electrically connected to the control mechanism 60 to form a closed-loop control system. Through the intelligent adjustment of the control mechanism 60, the steaming kiln can automatically adjust the steam supply according to the real-time temperature data to achieve the goal of zoned steaming. The accuracy of steaming is significantly improved, and the crack problem caused by uneven temperature is avoided.

[0065] More specifically, multiple temperature measuring structures 40 can monitor the temperature changes of concrete in the shield segment mold 10 in real time and cooperate with multiple steaming mechanisms 30. They can not only capture the temperature information of each area in time, but also adjust the steam supply according to these data, thereby ensuring that the temperature of the concrete in each area of ​​the shield segment mold 10 is maintained within the preset temperature requirement range. The risk of concrete cracks caused by uneven temperature in traditional steaming methods is greatly reduced, and the overall performance and quality of prefabricated shield segments are significantly improved. In addition, this technical solution greatly reduces production defects caused by temperature fluctuations by improving the controllability of the steaming process, so that the strength and durability of the prefabricated shield segments are improved, which not only improves production efficiency, but also provides a guarantee for the long-term use safety of prefabricated shield segments.

[0066] Please continue reading Figure 1 , Figure 4 and Figure 5 In an embodiment of the present invention, each temperature measuring structure 40 includes a mounting tube 41 and a temperature sensor 42. One end of the mounting tube 41 is detachably connected to the bracket 50. The other end of the mounting tube 41 is formed with a groove. The temperature sensor 42 is inserted into the groove. The temperature sensor 42 extends into the corresponding reserved hole 11 and the corresponding reserved pipe. The temperature sensor 42 is electrically connected to the control mechanism 60.

[0067] It should be noted that the temperature sensor 42 may be, but is not limited to, an NTC thermistor sensor in the prior art.

[0068] Specifically, each temperature measurement structure 40 includes a mounting tube 41 and a temperature sensor 42. One end of the mounting tube 41 is detachably connected to the bracket 50 by a clamp or a bolt in the prior art, so that the maintenance and replacement of the temperature measurement structure 40 are more convenient. A groove is formed at the other end of the mounting tube 41, and the temperature sensor 42 is inserted into the groove, so that the temperature sensor 42 can remain stable in the mounting tube 41, ensuring that its position does not shift during the temperature measurement process, thereby improving the accuracy of temperature measurement.

[0069] More specifically, the temperature sensor 42 extends into the corresponding reserved hole 11 and the reserved pipe, and can effectively monitor the temperature change inside the concrete in the shield segment mold 10. Not only can the temperature sensor 42 accurately obtain the temperature data of each area of ​​the concrete, but also provide good conditions for subsequent data transmission and processing. The temperature sensor 42 is electrically connected to the control mechanism 60 to ensure that the acquired temperature information can be transmitted to the control mechanism 60 in real time for analysis and processing. The control mechanism 60 can quickly adjust the working state of the steaming mechanism 30 according to the real-time data of temperature changes to achieve accurate control of the concrete steaming process.

[0070] As an optional implementation of this embodiment, the outer diameter of the installation tube 41 is smaller than the inner diameter of the reserved hole 11. Ensure that the installation tube 41 can be smoothly inserted into the reserved hole 11 and maintain a sufficient gap when placed. This gap not only facilitates installation and removal, but also effectively prevents tightening due to potential thermal expansion or other external factors.

[0071] As another optional implementation of this embodiment, the outer sleeve of the installation tube 41 is provided with an insulation sleeve. The insulation sleeve is made of polyester fiber in the prior art to isolate the influence of high-temperature steam generated during the steaming process on the temperature measuring structure 40, thereby ensuring the measurement accuracy and stability of the temperature sensor 42. By wrapping the insulation sleeve on the outside of the installation tube 41, the interference of external heat sources on the temperature sensor 42 can be reduced, thereby improving the temperature measurement accuracy. The stability of the temperature measuring structure 40 during long-term operation is ensured, so that the real-time monitoring function is effective for a long time.

[0072] Please continue reading Figure 1 and Figure 5 In an embodiment of the present invention, each steaming mechanism 30 includes a rack 22, a mounting plate 23 and a steam generating device 24. One end of the rack 22 is mounted on the top of the steaming kiln body 20, and the other end of the rack 22 is connected to the mounting plate 23. The steam generating device 24 is mounted on the mounting plate 23, and the steam generating device 24 is electrically connected to the control mechanism 60.

[0073] It should be noted that the steam generating device 24 is a water-tube steam generator or an electrically heated steam generator in the prior art, and the control mechanism 60 is a prior art.

[0074] Specifically, each steaming mechanism 30 includes a rack 22, a mounting plate 23 and a steam generator 24. One end of the rack 22 is mounted on the top of the steaming kiln body 20, which ensures the stability and safety of the steaming mechanism 30, and also provides a good position for the uniform release of steam. The other end of the rack 22 is connected to the mounting plate 23, which serves as a support platform for the steam generator 24 to ensure the stability and continuous operation of the equipment. On this basis, the steam generator 24 is mounted on the mounting plate 23, which is mainly responsible for converting water into steam and releasing it evenly into the steaming space 21. It can effectively provide the required amount of steam, thereby meeting the heat demand during the concrete steaming process and ensuring uniform heating of the concrete.

[0075] More specifically, the steam generator 24 is electrically connected to the control mechanism 60, so that the steam curing process can be intelligently controlled. The control mechanism 60 automatically adjusts the working state of the steam generator 24, such as the amount of steam generated and the frequency of steam release, according to the real-time data collected by the temperature sensor 42, to ensure that the temperature of the concrete during the steam curing process remains within a preset temperature range. This closed-loop control system significantly improves the accuracy of the concrete during the steam curing process, can respond to temperature fluctuations in a timely manner, and avoids potential problems caused by uneven steam supply.

[0076] In an embodiment of the present invention, the mounting plate 23 is spaced apart above the shield segment mold 10, the mounting plate 23 has an arc adapted to the shield segment mold 10, and a plurality of ventilation holes 25 are formed on the mounting plate 23, and the plurality of ventilation holes 25 are connected to the steam generating device 24 through a pipeline.

[0077] Specifically, the spacing of the mounting plates 23 allows the steam to form an effective steam transmission channel between the shield segment mold 10 and the mounting plates 23, ensuring that the steam will not be blocked or blocked and can flow freely into the shield segment mold 10 to heat and moisten the concrete. This not only improves the utilization efficiency of the steam, but also helps to maintain the temperature uniformity in the mold.

[0078] At the same time, the curvature of the mounting plate 23 is adapted to the shield segment mold 10, so that the steam can better fit the top surface of the shield segment mold 10, reduce the occurrence of cold spots and hot spots, and help maintain the overall temperature consistency of the concrete. It ensures that the steam can effectively cover every area of ​​the mold, providing good conditions for uniform steam curing of the concrete.

[0079] More specifically, the arrangement of the plurality of vent holes 25 allows steam to be uniformly released from the mounting plate 23 into the shield segment mold 10, ensuring that the steam can cover every part of the shield segment mold 10, effectively avoiding the problem of uneven drying or insufficient hardening of concrete due to insufficient steam. This uniform steam distribution is essential for improving the strength and performance of concrete.

[0080] Each vent hole 25 is connected to the steam generating device 24 through a pipeline, so that the supply amount and flow rate of steam can be flexibly adjusted to further ensure uniform diffusion of steam in the shield segment mold 10.

[0081] As an optional implementation of this embodiment, a storage space 26 is formed between the mounting plate 23 and the top wall of the steam-curing kiln body 20, and the steam generator 24 is accommodated in the storage space 26. First, the storage space 26 provides an independent working area for the steam generator 24, which can effectively avoid the direct impact of high temperature and steam on other components, thereby improving the service life of the overall equipment. At the same time, it also reduces the leakage of steam, making the utilization efficiency of steam in the steam-curing space 21 higher. Secondly, the steam generator 24 is accommodated in the storage space 26, which can effectively reduce the external space occupied by the equipment, making the overall structure more compact, and improving the flexibility and adaptability of the steam-curing kiln. In addition, the storage space 26 also facilitates the maintenance and inspection of the steam generator 24. When maintenance is required, the operator can easily disassemble and assemble the steam generator 24 without disassembling other parts of the equipment, reducing the complexity and time cost of maintenance.

[0082] As another optional implementation of this embodiment, the bracket 50 is arched from bottom to top, and the bracket 50 has a curvature that matches the shield segment mold 10. First, the bracket 50 that arches from bottom to top can effectively improve the bearing capacity and stability of the bracket 50 itself, ensure that the load from the temperature measuring structure 40 can be evenly distributed during the steam curing process, and reduce deformation or damage caused by gravity. The overall strength of the bracket 50 is effectively improved, allowing it to maintain stability during long-term use. Secondly, the bracket 50 is adapted to the curvature of the shield segment mold 10, so that the bracket 50 can fit the shape of the shield segment mold 10 tightly, ensuring that the temperature measuring structure 40 can better match the reserved hole 11 of the shield segment mold 10, and improving the reliability of temperature monitoring during steam curing. In addition, the arched bracket 50 also provides a more ideal path for the flow of steam to a certain extent, which enables the steam to circulate and diffuse better inside the steam curing space 21, further improving the steam curing efficiency. This fluidity not only helps to promote heat transfer, but also effectively avoids the accumulation of moisture and ensures the steam curing quality of concrete.

[0083] Please continue reading Figure 6In an embodiment of the present invention, 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 mechanism 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.

[0084] Specifically, the connecting plate 210 is arranged on the support frame 100 to form a connecting end, providing stable support for the entire curing mechanism 200. The curing frame 230 is arranged below the connecting plate 210 and driven by the lifting drive 220, ensuring that the curing film can move smoothly between the initial position and the curing position, thereby curing the concrete in the shield segment mold 10.

[0085] More specifically, the output end of the lifting drive 220 is connected to the curing frame 230, which is responsible for driving the curing frame 230 to move up and down between the initial position and the curing position. When the curing frame 230 is lowered to the curing position, the curing film can quickly and evenly cover 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.

[0086] The pick-and-place structure 240 is installed on the curing frame 230 and is detachably connected to the curing film. The curing film can be quickly released and retracted during the curing process. This not only improves the operating efficiency, but also adapts to the needs of different molds and further optimizes the production process.

[0087] In addition, the connecting plate 210 provides additional stability for the release process of the curing film, ensuring that the free end does not shake or move during operation.

[0088] Please continue reading Figure 7 In an embodiment of the present invention, the maintenance frame 230 includes a main frame 231 and a plurality of mounting tubes 232, wherein the plurality of mounting tubes 232 extend along the width direction of the shield segment mold 10, and 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, and the main frame 231 is connected to the output end of the lifting drive 220, and each mounting tube 232 is installed with a pick-up and placement structure 240.

[0089] Specifically, a plurality of mounting tubes 232 extend along the width direction of the shield segment mold 10, and are installed on the main frame 231 at intervals along the length direction of the mold. The curing frame 230 can evenly distribute the curing film within a specified range, thereby ensuring that the film has a more uniform covering effect, avoiding the situation where the concrete in the shield segment mold 10 is partially lacking in curing, and ensuring that the curing frame 230 can evenly and comprehensively apply force when releasing the curing film to cover and protect the concrete in the shield segment mold 10, thereby improving the curing efficiency, and can effectively reduce the decrease in strength and durability of concrete caused by uneven curing, so as to improve the quality of the finished product of the prefabricated shield segment.

[0090] More specifically, the main frame 231 is connected to the output end of the lifting drive 220, so that the curing frame 230 can be moved up and down by the control of the lifting drive 220. This ability to move up and down enables the curing membrane to quickly switch between the initial and curing positions, and to evacuate or cover the concrete surface in time, thereby achieving an efficient curing process.

[0091] In addition, a pick-up and placement structure 240 is installed on each installation tube 232. The pick-up and placement structure 240 allows the curing film to be quickly released when needed, and the curing film can be quickly recovered after the curing is completed. This not only improves the operating efficiency, but also can adapt to the curing requirements of different shield segment molds 10, reducing the necessity of manual intervention.

[0092] Please continue reading Figure 7 In an embodiment of the present invention, 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 by one, 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.

[0093] Specifically, the connecting plate 210 is formed with a plurality of guide grooves 211 extending vertically, and 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 can effectively guide the curing frame 230 to maintain vertical alignment during lifting and lowering, so as to avoid 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.

[0094] More specifically, the main frame 231 includes a frame body 233 and a plurality of guide rods 234. The number of guide rods 234 is consistent with the number of guide slots 211 and is arranged one by one to ensure that each guide rod 234 can slide in the corresponding guide slot 211. It is ensured that the curing frame 230 can move up and down smoothly under the action of the lifting drive member 220, maintain the stability and accuracy of the structure, and further improve the covering efficiency and accuracy of the curing film.

[0095] The guide rod 234 is slidably installed in the guide groove 211 along the vertical direction, and can control the position of the curing frame 230 during the lifting process, avoiding alignment errors caused by free movement. In addition, the frame 233 is connected to the output end of the lifting drive 220, so that the entire curing frame 230 can be efficiently moved by the lifting drive 220. It ensures that the curing film can be quickly and evenly applied to the target surface when covering the concrete, reducing errors caused by manual operation.

[0096] In addition, a plurality of mounting tubes 232 are installed on the frame 233 at intervals along the length direction of the shield segment mold 10, so that the curing film can be evenly distributed throughout the mold. This not only increases the effective coverage area of ​​the curing film, but also ensures the uniformity of the curing of the concrete in the shield segment mold 10 during the curing process, effectively improves its curing effect, and avoids quality problems caused by insufficient local coverage.

[0097] As an optional implementation of this embodiment, the frame 233 is arched from bottom to top, and the frame 233 has an arc that is compatible with the shield segment mold 10.

[0098] Specifically, the frame 233 has a curvature that matches 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.

[0099] More specifically, the arched shape of the frame 233 can effectively reduce the tension of the curing film during the covering process when the curing film covers the concrete, reduce local drying caused by the lack of fit between the curing film and the concrete surface, and ensure that the curing film can function evenly throughout the entire curing process.

[0100] In addition, the curvature of the frame 233 not only matches the shape of the shield segment mold 10, but also provides good support for the suspension of the curing membrane, which can effectively prevent the curing membrane from sagging due to gravity, thereby avoiding the gap between the curing membrane and the concrete surface, ensuring the uniformity of the curing effect. The arch of the frame 233 also helps the curing membrane to be quickly deployed and retracted, improving the convenience and efficiency of the operation of the curing mechanism 200.

[0101] Please continue reading Figure 8In 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 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.

[0102] It should be noted that the fan is a prior art.

[0103] Specifically, the fan is used to blow air to each ventilation hole 201 through the air duct when the installation tube 232 is in the release position, so that the curing film is detached from the installation tube 232 toward the side of the shield segment mold 10. In this process, the fan continues to work, and the curing film toward the side of the installation tube 232 continues to receive the wind pressure of the fan and fits with 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 fit with 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 segment. When recovering the curing film, the wind pressure of the fan can also be used to adsorb 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.

[0104] 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.

[0105] 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.

[0106] In addition, the transverse slide rail 110 can also effectively reduce the error of the curing film during covering, so that the curing film can be more evenly applied to the upper surface of the concrete in the shield segment mold 10. The operator can more easily adjust the position of the curing mechanism 200 to ensure the covering effect of the curing film and ensure that the concrete in the shield segment mold 10 can obtain better moisture retention and strength improvement during the curing period.

[0107] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A segment production line, characterized in that: Used for shield segment mold, the shield segment mold is filled with concrete; The segment production line comprises: A steaming kiln body, wherein the steaming kiln body forms a steaming space for accommodating the shield segment mold; A plurality of steaming curing mechanisms, each of which is accommodated in the steaming curing space, and each of which is arranged at intervals on the top of the steaming curing kiln body along the length direction of the shield segment mold; A curing kiln body, wherein the curing kiln body is spaced apart from the steam curing kiln body, and 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 curing mechanism, wherein the curing mechanism is arranged at intervals above the shield segment mold; the curing mechanism comprises a connecting end and a free end, wherein the connecting end is arranged on the support frame, and the free end is arranged between the connecting end and the shield segment mold, and the free end is detachably connected with a curing film, and the free end can move between an initial position upwardly away from the shield segment mold and a curing position downwardly close to the shield segment mold, and is used to release the curing film at the curing position; A transfer mechanism, wherein the shield segment mold is detachably mounted on the transfer mechanism, the transfer mechanism is slidably disposed between the steaming kiln body and the curing kiln body, and is used to transfer the shield segment mold from the steaming space to the curing space.

2. The segment production line according to claim 1, characterized in that: The concrete is coated with a segment steel cage and a plurality of reserved pipes, a side wall of the shield segment mold is provided with a plurality of reserved holes, the number of the reserved holes is consistent with the number of the reserved pipes and is arranged one-to-one, and each of the reserved holes is connected to the corresponding reserved pipe; A bracket is arranged in the steaming space, the bracket is connected to the inner wall of the steaming kiln body, the bracket is arranged at intervals on the side of the shield segment mold where a plurality of the reserved holes are opened, a plurality of temperature measuring structures are arranged on the bracket, the number of the temperature measuring structures is consistent with the number of the reserved holes and is arranged one by one, each of the temperature measuring structures extends into the corresponding reserved hole and the corresponding reserved pipeline; the plurality of temperature measuring structures and the plurality of steaming mechanisms are electrically connected to the control mechanism.

3. The segment production line according to claim 2, characterized in that: Each of the temperature measuring structures includes a mounting tube and a temperature sensor. One end of the mounting tube is detachably connected to the bracket, and the other end of the mounting tube is formed with a groove. The temperature sensor is inserted into the groove. The temperature sensor extends into the corresponding reserved hole and the corresponding reserved pipe, and the temperature sensor is electrically connected to the control mechanism.

4. The segment production line according to claim 3, characterized in that: Each of the steaming mechanisms includes a hanger, a mounting plate and a steam generating device. One end of the hanger is mounted on the top of the steaming kiln body, and the other end of the hanger is connected to the mounting plate. The steam generating device is mounted on the mounting plate, and the steam generating device is electrically connected to the control mechanism.

5. The segment production line according to claim 4, characterized in that: The mounting plate is arranged above the shield segment mold at intervals, has an arc that matches the shield segment mold, and is formed with a plurality of vents, which are all connected to the steam generating device through pipelines.

6. The segment production line according to any one of claims 1 to 5, characterized in that: 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 supporting 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 mechanism 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.

7. The segment production line according to claim 6, characterized in that: 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.

8. The segment production line according to claim 7, 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.

9. The segment production line according to claim 7, 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.

10. The segment production line 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.

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