Energy-saving mold of composite floor slab

Abstract

The invention relates to the technical field of floor slab manufacturing molds, in particular to an energy-saving mold of a composite floor slab, which comprises a mold table base, a module body group, an air bag driving piece and a locking mechanism, the module body set comprises a plurality of module bodies which are arranged on the mold table base and can ascend and descend independently, and the module bodies are used for selectively ascending to form a pouring area for containing materials to be formed. The airbag driving part is mounted at the lower part of the module body and replaces the vibration table while controlling the lifting of the module body through the airbag driving part; the locking mechanism is arranged at the connecting position of the air bag driving piece and the mold table base. The composite floor slabs of different specifications and sizes and different shapes can be produced through the modular mold table structural design, one-way heat conduction is achieved through the composite heat preservation structure of the module body, and energy needed for reducing the concrete cooling speed subsequently is saved; the problems that a traditional mold cannot adapt to a special shape, the room temperature needs to be increased to slow down the cooling speed of a prefabricated layer in winter due to the fact that a solid steel structure is used, and consequently energy consumption is increased are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of floor manufacturing molds, in particular to an energy-saving mold for composite floor. BACKGROUND

[0002] The composite floor is a kind of floor technology combining prefabrication and cast-in-place, which mainly consists of a prefabricated layer and a cast-in-place layer. The prefabricated layer is a thin concrete layer prefabricated by a mold, which is internally configured with a steel mesh and a truss steel bar, and the top chord of the truss steel bar extends out of the surface of the prefabricated layer. The cast-in-place layer is formed by casting concrete on the prefabricated layer and is tightly combined under the connecting action of the truss steel bar.

[0003] At present, the prefabricated layer manufacturing method used in factories mainly uses a mold composed of a large mold table and four surrounding edge molds to manufacture the prefabricated layer. After applying release agent on the mold table, the edge molds are fixed according to the size of the floor to be manufactured. After assembly, the bottom steel mesh and truss steel bar are placed, and the line box, sleeve, and other embedded parts are placed as needed. Then the mixed concrete is poured into the mold, and the vibrator under the mold table is started to make the concrete dense and eliminate bubbles. After completing the dense smoothing, the entire mold is sent into a steam curing kiln to accelerate the hardening of the concrete by heating and humidifying. Finally, the edge molds are removed, and the prefabricated composite floor is lifted off the mold table. However, this method has poor universality, and the appropriate edge molds need to be selected according to the size specifications of different composite floors, resulting in a large number of molds that cannot be used in the next project with different sizes after the completion of one project, causing great waste and storage pressure. To solve this problem, the existing technology proposes a modular splicing method and a hierarchical adjustable method. The former decomposes the edge mold into several segments and splices modules of different lengths to achieve the desired size. The latter uses a frame composed of four adjustable mold blocks. Each block has a fixed track and a moving block inside. By adjusting the position of the moving block in the track, the length of the single side can be changed.

[0004] Although the existing technology solves the problem of traditional molds that cannot adapt to composite floors of different sizes, it still has the following problems. Even if the traditional mold is improved, it can only process rectangular composite floors of different sizes. For some special-shaped composite floors, special edge molds are still needed, which will still cause storage pressure and increase the cost of materials. In addition, the current mold is usually a large solid steel mold, which has strong heat conduction ability. In winter, when the mold is removed after curing, the indoor temperature needs to be raised to ensure that the prefabricated composite floor does not cool down quickly during demolding, thereby preventing the strength of the concrete prefabricated floor from decreasing and micro-cracks from occurring. This process increases energy consumption.

[0005] In view of the above, in order to overcome the above technical problems, the present application designs an energy-saving mold for composite floor. SUMMARY

[0006] The present application provides an energy-saving mold for composite floor, which solves the problem that the traditional mold cannot adapt to special shapes and the use of solid steel structure leads to the need to increase the room temperature in winter to slow down the cooling speed of the prefabricated layer, thereby increasing energy consumption. By abandoning the design of the traditional side mold and adopting a modular mold table design, a freely liftable module group is arranged on the mold table base, which can adapt to composite floors of different size specifications and shapes. The lifting of the module group is driven by an air bag driving element, and the traditional vibration table is replaced by a high-frequency air injection and air release method to enhance the compactness and save energy. In addition, the module body is modified into a one-way heat conduction structure to achieve the effect of rapid heating and slow cooling, further improving the energy-saving effect.

[0007] To achieve the above purpose, the present application provides the following technical scheme:

[0008] An energy-saving mold for composite floor, comprising a mold table base, a module group, an air bag driving element and a locking mechanism; the module group comprises a plurality of independently liftable module bodies arranged on the mold table base, used to selectively lift to form a pouring area for containing the material to be formed; the air bag driving element is installed at the lower part of the module body, and when the air bag driving element is inflated, it pushes the module body to move upward; the locking mechanism is arranged at the connection position of the air bag driving element and the mold table base, used to seal the air bag driving element and keep the module body in the lifted state.

[0009] Preferably, a plurality of lifting openings are formed in the mold table base; guide grooves are formed on both sides of the lifting openings; and a sliding block is slidably installed in the guide groove on the lower side of the module body.

[0010] In the above scheme, by abandoning the design of the side mold and adopting a pixel dot matrix structure, compared with the traditional side mold structure, it can adapt to different size specifications and can also be used for processing other special shapes other than rectangular shapes. Although the air bag driving element can exert stable vertical thrust on the module body, it is a flexible structure and cannot effectively resist horizontal lateral force. During the concrete pouring and high-frequency vibration process, the module body will be subjected to uneven lateral pressure and impact force. If there is no constraint, the module body will shake, tilt or even dislocate, resulting in boundary deformation and joint failure. The guide groove and the sliding block can realize stable vertical lifting movement of the module body and will not tilt under the action of lateral force, which can ensure the flatness of the surface forming of the composite floor.

[0011] Preferably, the module body comprises a metal shell, a heat preservation core layer and a force bearing frame; the metal shell is used to contact with the material to be formed; the heat preservation core layer is arranged at the lower side of the metal shell; and the force bearing frame is arranged at the lower side of the heat preservation core layer.

[0012] In the above scheme, the traditional solid steel structure of the mold is abandoned, and a composite three-layer structure is adopted, from top to bottom: the uppermost metal shell, which is made of high-strength stainless steel plate with a wall thickness of 2mm to 4mm, needs to be precisely polished on its surface to ensure the smoothness and dimensional accuracy of the bottom surface and side wall of the prefabricated layer since it is in direct contact with the concrete; the middle layer is the heat preservation core layer, which is made of lightweight hard thermal insulation material with extremely low thermal conductivity, such as high-density polyurethane foam or phenolic foam, to achieve the effect of heat preservation and prevent the occurrence of micro-cracks in the interior of the prefabricated layer due to the excessive cooling speed after moving out of the curing kiln; and the lowermost layer is the force bearing frame, which is composed of lightweight high-strength metal profiles (such as aluminum alloy or hollow steel) to provide sufficient rigidity and strength to the whole body to withstand the weight of the concrete above.

[0013] Preferably, the module body further comprises a one-way heat pipe; the one-way heat pipe is connected between the metal shell and the force bearing frame through the heat preservation core layer, the one-way heat pipe is of a gravity-assisted structure, and the condensing end of the one-way heat pipe is connected with the metal shell, and the evaporation end is connected with the force bearing frame.

[0014] In the above scheme, through the combination of the metal shell, the heat preservation core layer and the one-way heat pipe, when the external high-temperature steam contacts the lower end of the mold in the curing kiln, the high-temperature steam will heat the evaporation end of the one-way heat pipe, the working medium in the one-way heat pipe will be vaporized, the working medium steam will rise to the condensing end in contact with the top of the metal shell due to the pressure difference, and will be condensed back to liquid state, releasing a huge latent heat of vaporization, thereby efficiently and quickly transferring heat to the concrete, so that the heat can quickly bypass the heat preservation core layer to heat the concrete, thereby improving the heating efficiency. Compared with the traditional solid steel mold which relies on slow overall heat conduction, the heat transport speed of the one-way heat pipe array is extremely fast, which can make the concrete reach the curing temperature faster and more uniformly, thereby shortening the entire curing period, saving curing energy consumption, and reducing the weight of the mold table, thereby reducing the energy consumption of lifting and transferring on the entire production line; and during the heat preservation and demolding stages (i.e. when the temperature at the top of the module body is higher than that at the bottom), since the condensed liquid working medium in the one-way heat pipe cannot flow back to the hot end above due to gravity, its heat transfer function is approximately closed at this time, and the thermal performance of the mold is dominated by the heat preservation core layer, which can slow down the cooling speed of the concrete and reduce the loss of heat. This fast heating and slow cooling heat management method can improve energy utilization rate and improve the quality of the prefabricated layer of the composite floor slab.

[0015] Preferably, the air bag driving member is a multi-section curved air bag, and a metal end cover is arranged at the top of the air bag driving member.

[0016] In the above scheme, the multi-section curved air bag is selected as the driving source, which can provide large stroke and high carrying capacity, and in the process of manufacturing the prefabricated layer of the composite floor, the air bag driving part is inflated to expand, so that the module body can move upward, and the air bag driving part below the concrete pouring area can be quickly and slightly inflated and deflated, so that the module body in the pouring area can perform high-frequency and small-amplitude vertical reciprocating motion to realize the vibration and compaction function, which can save the vibration table needed in the original compaction process, and compared with the global vibration transmitted from the edge of the platform by the vibration table, this vibration and compaction method can more efficiently compact the concrete, more effectively remove air bubbles, obtain more uniform compaction effect, improve the quality of the prefabricated layer, and also reduce invalid vibration to make the vibration and compaction more efficient.

[0017] Preferably, the locking mechanism comprises an inflation groove, a sealing disc and a pressure spring; the inflation groove is arranged at the connection position of the air bag driving part and the mold table base, and an inflation hole is formed in the middle of the inflation groove; the sealing disc is slidingly installed in the inflation groove; and the pressure spring is connected between the sealing disc and the inflation groove.

[0018] In the above scheme, after inflation is completed, the external inflation device can be removed for the module body that has been raised and serves as a side form, at this time the sealing disc will move downward under the action of the pressure spring (the external inflation device needs to maintain inflation during the removal process, that is, maintain the air pressure), and when the external inflation device moves to a position where the sealing disc is below the inflation hole, the air bag driving part will be sealed, at this time the module body will remain in the raised state, thereby ensuring that the concrete does not leak, and the raised module body is mainly subjected to pressure from the side wall, which will be shared by the lifting port, the guide groove, the sliding block and the adjacent module body, without causing the module body to drop.

[0019] Preferably, the air bag driving part is made of hydrogenated nitrile rubber.

[0020] In the above scheme, since the air bag driving part also enters the curing kiln together with the mold table base, the air bag driving part needs to be in an environment of 70 to 80 degrees Celsius for a long time, and the use of ordinary rubber material will cause it to age, harden and crack quickly, and the mold table base needs to be coated with a release agent, which may come into contact with the air bag driving part, while the hydrogenated nitrile rubber can work in an environment of 130 to 150 degrees Celsius for a long time and can resist the corrosion of various industrial oils and chemicals. In addition, the air bag driving part also needs to participate in high-frequency vibration, and the hydrogenated nitrile rubber also has good tear resistance and wear resistance, which can ensure that it is not prone to fatigue cracks and wear under long-term and high-frequency dynamic flexing, thereby prolonging its dynamic working life.

[0021] Preferably, the base of the mould base and the force bearing frame are treated as black surfaces with high heat absorption rate, and the side of the metal shell is treated as a bright surface with low radiation rate.

[0022] In the above scheme, the heat absorption efficiency in the curing heating stage can be improved by surface treatment, and in the curing kiln, the blackened base of the mould base and the force bearing frame can more fully and quickly absorb the heat radiation energy from the environment, and cooperate with the internal one-way heat pipe structure to efficiently transfer the energy to the concrete, thereby shortening the heating time; in addition, the heat loss rate in the heat preservation and cooling stage can be reduced, and the bright surface of the metal shell side wall can inhibit the heat loss in the form of radiation, and enhance the overall heat preservation effect.

[0023] Compared with the prior art, the beneficial effects of the present application are:

[0024] 1、Compared with the existing composite floor mold, the present application discards the traditional fixed size side mold, adopts a pixel point array structure composed of a plurality of independently liftable module bodies, so that a set of molds can adapt to different specifications and sizes even special-shaped prefabricated components production, at the same time, through high-frequency and small-amplitude reciprocating motion of the air bag driving element below the pouring area, local precise vibration of the concrete is realized, compared with the global vibration transmitted from the platform edge of the traditional vibration table, bubbles can be more efficiently removed, more uniform and dense effect is obtained, the quality of the prefabricated layer is improved, and independent vibration table equipment is also saved, which significantly reduces the power consumption and equipment investment of the vibration process.

[0025] 2、The module body is designed as a composite three-layer structure composed of a metal shell, a heat preservation core layer and a force bearing frame, and a one-way heat pipe as a gravity assisted structure is arranged in the heat preservation core layer, so that in the curing kiln heating stage, the one-way heat pipe as an efficient heat channel can quickly bypass the heat preservation core layer to directly transfer external heat to the concrete, greatly shortening the heating time and curing period; in the heat preservation and demolding stage, the heat transfer function of the one-way heat pipe is approximately closed, and the heat preservation core layer dominates the thermal performance, effectively slowing down the cooling speed of the concrete and preventing micro-cracks caused by excessive temperature difference. This "fast heating and slow cooling" feature maximizes energy utilization, saves energy consumption, and significantly improves the quality of the prefabricated layer.

[0026] 3、The application ensures that the module body can still stably vertically lift when bearing lateral pressure and impact force of concrete, prevents shaking and tilting, guarantees forming precision and protects the air bag driving part; in addition, the air bag driving part selects hydrogenated nitrile rubber with excellent high-temperature resistance, chemical corrosion resistance, tear resistance and wear resistance as a manufacturing material, ensures that the air bag driving part is not prone to aging, cracking and wear in the high-temperature and high-humidity environment of steam curing and the harsh working conditions of high-frequency dynamic flexing, prolongs the dynamic working life of the air bag driving part and guarantees long-term stable operation of the entire production system. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0028] Figure 1 is the overall structural diagram of the present application;

[0029] Figure 2 is the exploded view of the present application;

[0030] Figure 3 is the schematic diagram of the mold table base structure of the present application;

[0031] Figure 4 is the sectional view of the present application;

[0032] Figure 5 is the structure enlarged view of A in the figure; Figure 4

[0033] Figure 6 is the structure enlarged view of B in the figure; Figure 5

[0034] Figure 7 is the state diagram of the locking mechanism when injecting gas.

[0035] In the figure: 1, mold table base; 11, lifting port; 12, guide groove;

[0036] 2, module body group; 21, module body; 211, metal shell; 212, heat preservation core layer; 213, force bearing frame; 214, one-way heat pipe; 22, sliding block;

[0037] 3, air bag driving part; 31, metal end cover;

[0038] 4, locking mechanism; 41, gas injection groove; 411, gas injection hole; 42, sealing disc; 43, pressure spring. DETAILED DESCRIPTION​​

[0039] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0040] Please refer to Figures 1 to 7 , the present application provides a kind of energy-saving mould of composite floor, technical scheme as follows:

[0041] As a specific embodiment of the present application, refer to Figure 1 、 Figure 2 And Figure 3 , a kind of energy-saving mould of composite floor, including mould base 1, module body group 2, gas bag driving element 3 and locking mechanism 4;The module body group 2 includes multiple independently liftable module bodies 21 arranged on the mould base 1, and the pouring area for containing the material to be formed can be formed by selectively lifting the module body 21;The gas bag driving element 3 is installed at the lower part of the module body 21, and the gas bag driving element 3 pushes the module body 21 to rise when it is inflated;The locking mechanism 4 is arranged at the connecting position of the gas bag driving element 3 and the mould base 1, for sealing the gas bag driving element 3 and keeping the module body 21 in the raised state.

[0042] As a specific embodiment of the present application, refer to Figure 1 、 Figure 2 And Figure 3 , a plurality of lifting openings 11 are formed in the mould base 1;The lifting opening 11 is provided with a guide groove 12 on both sides;The lower side of the module body 21 is provided with a sliding block 22 slidingly installed in the guide groove 12, and the sliding block 22 sliding in the vertically formed guide groove 12 can drive the module body 21 to move vertically. By abandoning the design of side mould, pixel dot matrix structure is adopted, which can be used for processing non-rectangular special shapes while adapting to different size specifications compared with traditional side mould structure;Although the gas bag driving element 3 can exert stable vertical thrust on the module body 21, it is a flexible structure and cannot effectively resist horizontal lateral force, and in the process of concrete pouring and high-frequency vibration, the module body 21 will be subjected to uneven lateral pressure and impact force, and if not constrained, the module body 21 will shake, tilt or even dislocate, resulting in boundary deformation and joint failure, the stable vertical lifting movement of the module body 21 can be realized through the guide groove 12 and the sliding block 22, and the module body 21 will not tilt under the action of lateral force, which can ensure the flatness of the surface of the composite floor.

[0043] As a specific embodiment of the present application, refer to Figure 4 And Figure 5The module body 21 comprises a metal shell 211, a heat preservation core layer 212 and a force bearing frame 213; the metal shell 211 is used to contact with the material to be formed; the heat preservation core layer 212 is arranged at the lower side of the metal shell 211; the force bearing frame 213 is arranged at the lower side of the heat preservation core layer 212; the three layers of the metal shell 211, the heat preservation core layer 212 and the force bearing frame 213 are a composite structure, the three layers can be bonded by phenolic foam, the long-term use temperature of the phenolic foam can reach 150 degrees Celsius, and the phenolic foam has excellent water vapor permeability and dimensional stability, and almost does not shrink and deform in a high temperature and high humidity environment. The traditional solid steel structure of the mold is abandoned, and a composite three-layer structure is adopted, from top to bottom: the uppermost metal shell 211 adopts a high-strength stainless steel plate with a wall thickness of 2mm-4mm, since the metal shell 211 directly contacts with the concrete, the surface of the metal shell 211 needs to be precisely polished to ensure the smoothness and dimensional accuracy of the bottom surface and the side wall of the prefabricated layer; the middle layer is the heat preservation core layer 212, which adopts a lightweight and hard heat preservation material with extremely low thermal conductivity, such as high-density polyurethane foam or phenolic foam, to achieve the heat preservation effect and prevent the internal micro-cracks of the prefabricated layer caused by the excessive cooling speed after the subsequent removal from the curing kiln; the lowermost layer is the force bearing frame 213, which is composed of lightweight and high-strength metal profiles (such as aluminum alloy or hollow steel), to provide sufficient rigidity and strength for the whole to bear the weight of the concrete above.

[0044] As a specific embodiment of the present application, reference is made to Figure 4 and Figure 5The module body 21 further comprises a one-way heat pipe 214; the one-way heat pipe 214 is connected between the metal shell 211 and the force bearing frame 213 through the heat preservation core layer 212, the one-way heat pipe 214 is a gravity-assisted structure, and the condensing end of the one-way heat pipe 214 is connected with the metal shell 211, and the evaporation end is connected with the force bearing frame 213. Through the combination of the metal shell 211, the heat preservation core layer 212 and the one-way heat pipe 214, when the mold is in the curing kiln, the high-temperature steam outside will heat the evaporation end of the one-way heat pipe 214 when the high-temperature steam contacts the lower end of the mold, the working medium in the one-way heat pipe 214 will be evaporated, and the working medium steam will rise to the condensing end in contact with the top of the metal shell 211 due to the pressure difference, and be condensed back to the liquid state, releasing a large amount of latent heat of vaporization, thereby efficiently and quickly transferring heat to the concrete, so that the heat can quickly bypass the heat preservation core layer 212 to heat the concrete, thereby improving the heating efficiency. Compared with the traditional solid steel mold which relies on slow overall heat conduction, the heat transport speed of the one-way heat pipe 214 array is extremely fast, which can make the concrete reach the curing temperature faster and more uniformly, thereby shortening the entire curing period, saving curing energy consumption, and reducing the weight of the mold table, thereby reducing the energy consumption of lifting and transferring on the entire production line; and in the heat preservation stage and the demolding stage (i.e. when the temperature at the top of the module body 21 is higher than that at the bottom), due to the condensed liquid working medium in the one-way heat pipe 214, it cannot flow back to the hot end under the action of gravity, so its heat transfer function is approximately closed at this time, and the thermal performance of the mold is dominated by the heat preservation core layer 212, which can slow down the cooling speed of the concrete and reduce the loss of heat. This fast heating and slow cooling heat management method can improve energy utilization and improve the quality of the precast layer of the composite floor slab.

[0045] As a specific embodiment of the present application, reference is made to Figure 4 and Figure 5The airbag driver 3 is a multi-section curved airbag, and a metal end cap 31 is provided on the top of the airbag driver 3. The multi-section curved airbag is selected as the driving source, which can provide a large stroke and high load-bearing lifting capacity. In the process of manufacturing the precast layer of the composite floor slab, the airbag driver 3 is injected with air to expand it, so that the module body 21 can move upward, and the airbag driver 3 below the concrete pouring area can be quickly injected and evacuated with a small amount of air, so that the module body 21 in the pouring area can perform high-frequency, small-amplitude vertical reciprocating motion to achieve the vibration compaction function, which can save the vibration table required in the original compaction process, and compared with the global vibration transmitted from the edge of the platform by the vibration table, this vibration compaction method can compact the concrete more efficiently, eliminate bubbles more effectively, obtain a more uniform compaction effect, improve the quality of the precast layer, and reduce invalid vibration, making the vibration compaction more efficient; the airbag driver 3 can be externally injected with air to form a compaction device. The control system of the external gas injection device is composed of multiple bus valve islands, PLC controllers, cylinders and connecting pipes. Through the multiple solenoid valves integrated on each bus valve island, free control of gas injection for any airbag driver 3 can be achieved, thereby achieving free control of the free lifting and lowering of a single module body 21. In a preferred layout, a bus valve island can be configured for each row or column of the array. The number of valve positions of each bus valve island corresponds to the number of module bodies 21 in the row or column. A cylinder is used as the main air source to distribute compressed air to the air inlet of each bus valve island, and then the PLC controller opens the solenoid valve by sending digital instructions to the specific valve position of the specific bus valve island, thereby achieving precise control of any airbag driver 3. This method simplifies electrical wiring and improves the integration and response speed of the system.

[0046] As a specific embodiment of the present invention, refer to Figure 2 、 Figure 6 and Figure 7The locking mechanism 4 comprises an air injection groove 41, a sealing disc 42 and a pressure spring 43. The air injection groove 41 is arranged at the connecting position of the air bag driving element 3 and the mould base 1, and an air injection hole 411 is formed in the middle of the air injection groove 41. The sealing disc 42 is slidingly arranged in the air injection groove 41. The pressure spring 43 is connected between the sealing disc 42 and the air injection groove 41. After air injection is completed, the external air injection device can be removed for the mould body 21 which has been lifted and functions as a side mould. At this time, the sealing disc 42 will be lowered under the action of the pressure spring 43. The external air injection device needs to keep air injection during the removal process, i.e. keep the air pressure. When the external air injection device is moved to the position where the sealing disc 42 is lower than the air injection hole 411, the air bag driving element 3 will be sealed, and at this time, the mould body 21 will be kept in the lifted state, thereby ensuring that the concrete will not leak, and the lifted mould body 21 is mainly subjected to the pressure from the side wall, which is shared by the lifting opening 11, the guide groove 12, the sliding block 22 and the adjacent mould body 21, and will not cause the mould body 21 to descend. The end of each connecting pipeline can be provided with a quick connector. The sealing disc 42 is pushed upward to the position where the air injection hole 411 is air injected by inserting the quick connector into the bottom of the air injection groove 41. When it is needed to lower the mould body 21, the corresponding electromagnetic valve is opened by the PLC controller, and then air suction is performed, so that the air bag driving element 3 in the mould body 21 can return to the initial state.

[0047] As a specific embodiment of the present application, refer to Figure 5 and Figure 6 The air bag driving element 3 selects hydrogenated nitrile rubber as the manufacturing material. Since the air bag driving element 3 also enters the curing kiln together with the mould base 1, the air bag driving element 3 needs to be in the environment of 70 to 80 degrees Celsius for a long time. The use of ordinary rubber material will cause it to age, harden and crack quickly. The mould base 1 needs to be coated with a release agent, and the release agent may come into contact with the air bag driving element 3. The hydrogenated nitrile rubber can work in the environment of 130 to 150 degrees Celsius for a long time, and can also resist the erosion of various industrial oils and chemicals. In addition, the air bag driving element 3 needs to participate in high-frequency vibration. The hydrogenated nitrile rubber also has good tear resistance and wear resistance, which can ensure that fatigue cracks and wear are not easy to occur under long-term and high-frequency dynamic flexing, thereby prolonging the dynamic working life.

[0048] As a specific embodiment of the present application, refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The bottom of the mold base 1 and the bottom surface of the force bearing frame 213 are treated as black surfaces with high heat absorption rate, and the side of the metal shell 211 is treated as a bright surface with low radiation rate. The surface treatment can improve the heat absorption efficiency in the curing heating stage. In the curing kiln, the blackened mold base 1 and the force bearing frame 213 can more fully and quickly absorb the thermal radiation energy from the environment, and cooperate with the structure of the one-way heat pipe 214 inside to efficiently transfer the energy to the concrete, thereby shortening the heating time; in addition, it can also reduce the heat loss rate in the insulation and cooling stage, and the bright surface of the side wall of the metal shell 211 can inhibit the heat loss in the form of radiation, thereby enhancing the overall insulation effect.

[0049] Workflow: The operator selects the module body 21 that needs to be raised according to the size and shape of the design drawing of the composite floor to be produced, and controls the system to inject gas into the air bag driving element 3 below the module body 21 at the specified boundary position. The air bag driving element 3 expands and stably pushes the module body 21 upward. Under the constraint of the guide groove 12 and the sliding block 22, the module body 21 realizes precise vertical lifting until the predetermined height is reached; the reinforcement mesh and truss reinforcement are placed in the area surrounded by the module body 21, and then the concrete is poured; after pouring is completed, the air bag driving element 3 in the module body 21 below the pouring area is quickly and slightly injected and pumped, at which time the module body 21 will perform high-frequency and small-amplitude vertical reciprocating motion, thereby vibrating the concrete and removing air bubbles in the concrete, achieving efficient and uniform vibration and compaction effect;

[0050] After pouring and vibrating are completed, the entire mold base 1 together with the module body group 2 thereon is moved into the curing kiln, the high-temperature steam in the kiln contacts the mold base 1 and the force bearing frame 213, the heat is transferred to the evaporation end of the one-way heat pipe 214, the working medium in the pipe is evaporated, the steam rises to the condensation end in contact with the metal shell 211 and releases a large amount of latent heat of vaporization, the heat quickly bypasses the insulation core layer 212, efficiently and uniformly heating the concrete; during the insulation and cooling stage, the heat transfer function of the one-way heat pipe 214 is approximately closed, at which time the insulation core layer 212 of the module body 21 becomes the main heat barrier, effectively slowing down heat loss and ensuring slow and uniform cooling of the concrete;

[0051] After curing is completed, the mold and the precast layer are removed as a whole, the external quick connector for gas injection is connected again with the gas injection groove 41, the control system pumps the air bag driving element 3 in the module body 21 acting as a side mold, injects the air bag driving element 3 in the module body 21 below the precast layer, and cooperates with the hoisting equipment above to complete demolding; after demolding is completed, the surface of the metal shell 211 of all module bodies 21 is cleaned and brushed with a release agent, preparing for the next production cycle.

[0052] The foregoing merely illustrates the principles of the application and application of its more prominent features. Various modifications and enhancements are possible without departing from the spirit and scope of the application. Accordingly, what has been described above and illustrated in the accompanying drawings is a broad exposition of the more notable and principle features of the application. It is the intention of the inventors that what has been described above and that will be claimed below is a complete description of the inventive principles of the application and that the application is defined by the following claims and their equivalents.

Claims

1. An energy-saving mold for composite floor slabs, characterized by: The invention comprises a die table base (1), a module body group (2), an airbag driving component (3) and a locking mechanism (4); the module body group (2) comprises a plurality of independently liftable module bodies (21) arranged on the die table base (1), and used for selectively lifting to form a casting area for accommodating materials to be molded; the airbag driving component (3) is installed at the lower part of the module body (21), and when the airbag driving component (3) is injected with air and expanded, it pushes the module body (21) to move upward; the locking mechanism (4) is arranged at the connection position between the airbag driving component (3) and the die table base (1), and is used for sealing the airbag driving component (3) to keep the module body (21) in a raised state.

2. The energy-saving mold for composite floor slab according to claim 1, characterized in that: The mold platform base (1) is provided with a plurality of lifting openings (11); guide grooves (12) are provided on both sides of the lifting openings (11); and a sliding block (22) is provided on the lower side of the module body (21) and is slidably installed in the guide groove (12).

3. The energy-saving mold for composite floor slab according to claim 1, characterized in that: The module body (21) comprises a metal shell (211), a heat-insulating core layer (212), and a load-bearing frame (213); the metal shell (211) is used for contacting the material to be formed; the heat-insulating core layer (212) is arranged on the lower side of the metal shell (211); and the load-bearing frame (213) is arranged on the lower side of the heat-insulating core layer (212).

4. The energy-saving mold for composite floor slab according to claim 3, characterized in that: The module body (21) further comprises a one-way heat pipe (214); the one-way heat pipe (214) penetrates the heat-insulating core layer (212) and is connected between the metal shell (211) and the load-bearing frame (213); the one-way heat pipe (214) is a gravity-assisted structure; the condensation end of the one-way heat pipe (214) is connected to the metal shell (211), and the evaporation end is connected to the load-bearing frame (213).

5. The energy-saving mold for composite floor slab according to claim 1, characterized in that: The airbag driving component (3) is a multi-section curved airbag, and a metal end cover (31) is provided on the top of the airbag driving component (3).

6. The energy-saving mold for composite floor slab according to claim 5, characterized in that: The locking mechanism (4) comprises an air injection groove (41), a sealing disc (42) and a pressure spring (43); the air injection groove (41) is arranged at the connection position between the airbag driving component (3) and the mold base (1), and an air injection hole (411) is opened in the middle of the air injection groove (41); the sealing disc (42) is slidably installed in the air injection groove (41); and the pressure spring (43) is connected between the sealing disc (42) and the air injection groove (41).

7. The energy-saving mold for composite floor slab according to claim 5, characterized in that: The airbag driving component (3) is made of hydrogenated nitrile rubber.

8. The energy-saving mold for composite floor slab according to claim 3, characterized in that: The bottom surface of the mold platform base (1) and the bottom surface of the load-bearing frame (213) are processed into black surfaces with high heat absorption rate, and the side surface of the metal shell (211) is processed into a bright surface with low emissivity.

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