A device for producing prefabricated elements for building works

Abstract

The application relates to the field of prefabricated part production, in particular to a prefabricated part production device for building engineering. The prefabricated part production device for building engineering comprises a mounting frame, a filling box, a front baffle, inner support columns and vibration motors; the upper side of the mounting frame is fixedly connected with the filling box; the front side of the filling box is slidably connected with the front baffle; a plurality of inner support columns arranged in sequence in the left-right direction are slidably connected to the front baffle; the mounting frame is provided with the same number of vibration motors as the inner support columns. The inner support columns are driven to vibrate by the vibration motors, the prefabricated part is vibrated together from the center part of the prefabricated part blank through the hollow pipe and the steel bar frame, under the limitation of the inner support columns on the hollow pipe, the vibration treatment of the prefabricated part production is effectively completed, and the large-range angle deviation of the hollow pipe and the steel bar frame is avoided.

Description

Technical Field

[0001] This invention relates to the field of prefabricated component production, and more particularly to a prefabricated component production apparatus for building engineering. Background Technology

[0002] Precast components are often used in construction projects for splicing building structures. This ensures sufficient structural strength while saving considerable time spent waiting for cement to be mixed and solidified during construction. For example, patent CN213329660U describes a seismic-resistant precast slab for buildings. Precast blanks, such as cement and other basic structural materials, are poured into a filling box. The precast blanks are shaped into precast blanks in the filling box. A steel frame and hollow tubes as internal supports are pre-placed in the filling box, allowing the steel frame and hollow tubes to be embedded inside the precast blank to form a complete precast component, thereby enhancing the overall structural strength of the precast component.

[0003] In the production process of the precast components described in the aforementioned patent, after the precast component blank is poured into the filling box, it is necessary to rely on the heating components on the filling box to heat and solidify the precast component blank to accelerate the solidification and molding of the precast component. However, the existing heating equipment used to accelerate the solidification of the precast component blank can only heat the surface of the precast component blank, which results in the surface solidification rate being greater than the internal solidification rate of the precast component blank. The surface is completely solidified while the inside is not completely solidified. If the precast component that is not completely solidified is directly removed from the mold, the internal steel reinforcement frame and hollow tube are easily displaced during the removal process, affecting the structural strength of the precast component.

[0004] In addition, during the process of pouring precast blanks into the filling box, the filling box needs to be vibrated by an external vibration device to make the precast blanks in the filling box vibrate evenly. At this time, since the steel frame and the hollow tube are not completely welded and fixed together, the hollow tube vibrating with the filling box is prone to large-scale angular displacement within the steel frame, which will also affect the structural strength of the precast component. Summary of the Invention

[0005] In order to overcome the disadvantage that the internal structure of a precast component may shift and affect its structural strength if it is removed before the interior of the precast component has fully solidified during the precast component production process, the present invention provides a precast component production device for building engineering.

[0006] This article describes a precast component production device for building engineering, comprising a mounting frame, a filling box, an electric heating base plate, a heat transfer plate, a front baffle, internal support columns, a heating controller, heating rods, and a vibration motor; the filling box is fixedly connected to the upper side of the mounting frame; a control panel is installed on the filling box; the electric heating base plate is installed at the bottom of the filling box; a heat transfer plate is provided on each of the two opposite side walls inside the filling box; both heat transfer plates are in close contact with the upper surface of the electric heating base plate; a front baffle is slidably connected to the front side of the filling box; several internal supports arranged sequentially in the left-right direction are slidably connected to the front baffle. Columns; all internal support columns are equipped with a main handle; the main handle contains a heating controller; each internal support column has a heating rod inserted inside; all heating rods are electrically connected to the heating controller; the mounting frame has the same number of vibration motors as the internal support columns; the filling box has the same number of vibration sleeves as the vibration motors; the vibration component of each vibration motor is fixedly connected to the adjacent vibration sleeve; the rear end of each internal support column is inserted into the adjacent vibration sleeve; heating is performed from the middle of the precast preform body using heating rods to ensure synchronous solidification inside and outside the precast preform body.

[0007] Furthermore, a tension spring is fixed to both the left and right sides of the front baffle and the filling box.

[0008] Furthermore, each inner support column has an air extraction pipe fixed to its upper and lower sides; each air extraction pipe has a venting sheet installed in the middle of the side away from the inner support column; two air pumps are installed on the mounting frame; an air collection pipe is fixed to the main handle; each air extraction pipe is connected to the air collection pipe; an air replenishment hole is opened on the air collection pipe; an insertion tube is connected to the left and right ends of the air collection pipe; the two insertion tubes are respectively inserted into the inlet end of the adjacent air pump.

[0009] Furthermore, each cannula is designed to be tapered, converging towards the air pump inlet.

[0010] Furthermore, air storage bladders are provided on the left and right sides of the filling box; each air storage bladder has an expansion section on the side near the heat transfer plate; each of the two air pumps has an air supply pipe connected to its outlet; and the two air supply pipes are connected to the adjacent air storage bladders respectively.

[0011] Furthermore, each of the two heat transfer plates is fixedly connected to several sliding rods, and each sliding rod is slidably connected to the filling box; several spring components are fixedly connected between the two heat transfer plates and the filling box, and the spring components are sleeved on the outer surface of the adjacent sliding rods; the two heat transfer plates are respectively in close contact with the adjacent air storage bags.

[0012] Furthermore, the gas storage bladder has several air jets on the side near the heat transfer plate; several plugs that penetrate the heat transfer plate are fixed to the heat transfer plate; each plug is inserted into the adjacent air jet.

[0013] Furthermore, each plug has several vent holes that penetrate the plug, and the vent holes are initially not connected to the air outlets of adjacent air reservoirs.

[0014] Furthermore, each jet nozzle is equipped with several plugs for blocking adjacent vent holes.

[0015] Furthermore, a slant plate is rotatably connected to the front side of the mounting bracket via a pivot; a torsion spring is fixed between each end of the slant plate and the mounting bracket, and the torsion spring is sleeved on the outer surface of the pivot of the slant plate.

[0016] Furthermore, each inner support column has a strip groove on its upper and lower sides; the air extraction pipe is embedded in the strip groove of the adjacent inner support column.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. This invention uses a vibrating motor to drive the inner support column to vibrate, allowing the precast component to vibrate together from the center of the precast component blank through the hollow tube and the steel reinforcement frame. Under the constraint of the inner support column on the hollow tube, the vibration treatment of the precast component production is effectively completed, and large-scale angular displacement of the hollow tube and the steel reinforcement frame is avoided.

[0019] 2. This invention uses an electric heating base plate in conjunction with a heat transfer plate to heat and solidify the outer surface of the preform. At the same time, a heating rod heats the inner support column, which transfers heat to the hollow tube, allowing the middle part of the preform blank to also undergo heating and solidification simultaneously. This effectively improves the overall heating and solidification efficiency of the preform, ensuring that the outer surface of the preform is heated and solidified while the interior of the preform is also effectively heated and solidified.

[0020] 3. The present invention uses an air extraction pipe to promptly remove air bubbles from inside the precast component and around the hollow tube, so that the precast component blank slurry around the hollow tube can be more tightly bonded to the hollow tube after solidification, thereby improving the overall structural strength of the precast component. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram illustrating a first perspective of the present invention according to an embodiment;

[0022] Figure 2 This is a schematic diagram illustrating a second perspective of the three-dimensional structure of the present invention according to an embodiment;

[0023] Figure 3 A cross-sectional view of the filling box of the present invention is shown according to an embodiment;

[0024] Figure 4 This is a three-dimensional structural diagram illustrating the front baffle, inner support column, and main handle of the present invention according to an embodiment;

[0025] Figure 5 Exploded views of the front baffle, inner support column, and main handle of the present invention are provided according to embodiments.

[0026] Figure 6 This is a schematic diagram illustrating the three-dimensional structure of the inner support column and the extraction pipe according to an embodiment of the present invention;

[0027] Figure 7 This is a three-dimensional structural diagram illustrating the extraction pipe and gas collecting pipe of the present invention according to an embodiment;

[0028] Figure 8 This is a schematic diagram illustrating the three-dimensional structure of the air pump and air reservoir of the present invention according to an embodiment;

[0029] Figure 9 This is a partial three-dimensional structural diagram illustrating the air storage bladder and filling box of the present invention according to an embodiment;

[0030] Figure 10 This is a partial cross-sectional view illustrating the heat transfer plate and plug of the present invention according to an embodiment;

[0031] Figure 11 This is a schematic diagram illustrating the three-dimensional structure of the steel reinforcement frame and hollow tube used in this invention, according to an embodiment.

[0032] Figure 12 This is a partial three-dimensional structural diagram of the steel reinforcement frame and hollow tube according to an embodiment of the present invention.

[0033] The meanings of the reference numerals in the attached diagram are as follows: 1-Mounting bracket, 11-Sloping plate, 12-Torsion spring, 2-Filling box, 21-Electric heating base plate, 22-Heat transfer plate, 221-Slide rod, 222-Spring component, 23-Front baffle, 231-Tension spring, 232-Secondary handle, 3-Inner support column, 30-Strip groove, 4-Main handle, 41-Heating controller, 42-Heating rod, 5-Vibration motor, 51-Vibration sleeve, 6-Ejection pipe, 60-Filter cotton, 61-Gas collection pipe, 611-Insertion tube, 612-Air replenishment hole, 62-Air pump, 63-Air delivery pipe, 7-Air storage bag, 70-Expansion section, 71-Air nozzle, 72-Plug, 8-Plug component, 81-Vent hole, 91-Reinforcing steel frame, 92-Hollow tube, 921-Vent hole. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Hollow tube 92 and steel reinforcement frame 91 will be as shown in the attached... Figure 11 In the position shown, it is placed in the precast blank. After the blank solidifies and takes shape, the hollow tube 92 and the steel frame 91 will become part of the precast component, strengthening the precast component.

[0036] A precast component production device for building construction, such as Figures 1-6 As shown, the assembly includes a mounting frame 1, a filling box 2, an electric heating base plate 21, a heat transfer plate 22, a front baffle 23, inner support columns 3, a heating controller 41, a heating rod 42, and a vibration motor 5. The upper side of the mounting frame 1 is bolted to the filling box 2. A control panel is installed on the filling box 2. The bottom of the filling box 2 is bolted to the electric heating base plate 21, which heats and solidifies the bottom of the precast component. A heat transfer plate 22 is located on the inner left and inner right sides of the filling box 2, and the electric heating base plate 21 heats and solidifies the left and right sides of the precast component through the two heat transfer plates 22. The front side of the filling box 2 is slidably connected to the front baffle 23 via a sliding rod 221. A tension spring 231 is fixed between the left and right sides of the front baffle 23 and the filling box 2. Several inner support columns 3 arranged sequentially in the left-right direction are slidably connected to the front baffle 23. The front ends of all the inner support columns 3 are connected together... A main handle 4 is bolted together; a heating controller 41 is installed inside the main handle 4; a heating rod 42 is inserted inside each inner support column 3, and the heating controller 41 heats each inner support column 3 through the heating rod 42. The heated inner support column 3 further transfers heat to the hollow tube 92, so that the middle part of the precast blank is also heated and solidified simultaneously; the rear side of the mounting frame 1 is bolted with the same number of vibration motors 5 as the inner support columns 3; the rear side of the filling box 2 is bolted with the same number of vibration sleeves 51 as the vibration motors 5; the rear end of the inner support column 3 is inserted into the adjacent vibration sleeve 51, and the vibration motor 5 drives the inner support column 3 to vibrate through the vibration sleeve 51. The inner support column 3 transmits the vibration to the hollow tube 92 and the steel frame 91, so that the precast blank in the central area of ​​the precast blank is vibrated evenly through the hollow tube 92 and the steel frame 91.

[0037] like Figure 4 As shown, the upper side of the front baffle 23 is bolted with a secondary handle 232, which facilitates the quick pulling out of the front baffle 23.

[0038] like Figure 1 As shown, the front side of the mounting frame 1 is rotatably connected to the inclined plate 11 via a pivot. A torsion spring 12 is fixed between each end of the inclined plate 11 and the mounting frame 1. The torsion spring 12 is sleeved on the outer surface of the pivot of the inclined plate 11. The inclined plate 11 supports the precast component that is pulled out. After the precast component is released, the precast component is quickly unloaded by pressing down on the inclined plate 11.

[0039] The precast component blank filling work for the precast component production equipment used in this construction project:

[0040] First, the operator pulls the main handle 4 and the auxiliary handle 232 forward to pull the front baffle 23, inner support column 3, heating controller 41, and heating rod 42 forward from the filling box 2. The front baffle 23 pulls the tension spring 231 forward. The operator then puts the assembled steel frame 91 and hollow tube 92 into the filling box 2. After aligning each inner support column 3 and inserting it into the adjacent hollow tube 92, the operator slowly releases the main handle 4 and the auxiliary handle 232, allowing the stretched tension spring 231 to drive the front baffle 23 back onto the filling box 2. The front baffle 23 then moves the inner support column 3, heating controller 41, and heating rod 42 back into the filling box 2 to reset, allowing the inner support column 3 to be fully inserted into the adjacent hollow tube 92, and allowing the rear end of the inner support column 3 to be inserted into the adjacent vibration sleeve 51, thus completing the placement and corresponding fixing of the steel frame 91 and hollow tube 92.

[0041] Next, the operator controls the external precast blank conveying equipment to pour precast blanks into the filling box 2. After the precast blanks fill two-thirds of the area of ​​the filling box 2, most of the area of ​​the steel bar frame 91 and the hollow tube 92 is covered by the precast blanks. At this time, the steel bar frame 91 and the hollow tube 92 are wrapped and limited by the precast blanks.

[0042] The operator then turns on the vibration motor 5. The vibration component of the vibration motor 5 drives the inner support column 3 to vibrate through the vibration sleeve 51. The inner support column 3 drives the hollow tube 92 and the connected steel reinforcement frame 91 to vibrate. As the precast blank is continuously poured into the filling box 2, the filling box 2 is gradually filled with the precast blank. The precast blank forms a precast blank body inside the filling box 2, allowing the hollow tube 92 and the steel reinforcement frame 91 to vibrate together from the center of the precast blank body. Under the limitation of the hollow tube 92 by the inner support column 3, the vibration treatment of the precast production is effectively completed. By fitting the hollow tube 92 onto the inner support column 3 and then connecting the steel reinforcement frame 91 to the hollow tube 92, the hollow tube 92 and the steel reinforcement frame 91 are bound together with the vibration source. This avoids the problem of the hollow tube 92 and the steel reinforcement frame 91 shifting away from the original installation area due to vibration during the vibration treatment of the precast blank, ensuring that the structural strength of the precast part produced is not damaged.

[0043] The solidification process of the precast blanks in the precast component production equipment used in this construction project:

[0044] After the precast blank filling is completed, the operator removes the precast blank conveying equipment and turns on the electric heating base plate 21. The electric heating base plate 21 directly heats and solidifies the bottom of the precast blank. At the same time, the heat generated by the electric heating base plate 21 is transferred to the two heat transfer plates 22, so that the two heat transfer plates 22 simultaneously heat and solidify the left and right sides of the outer surface of the precast blank.

[0045] At the same time, the heating controller 41 heats the inner support column 3 through the heating rod 42. The inner support column 3 transfers heat to the hollow tube 92 and the steel frame 91 connected to it. The hollow tube 92 and the steel frame 91 together heat the middle part of the precast blank, so that the middle part of the precast blank is also heated and solidified at the same time, which effectively improves the overall heating and solidification efficiency of the precast.

[0046] After the precast blank is heated and solidified, the hollow tube 92 and the steel frame 91 are wrapped and fixed inside the solidified precast blank to produce the precast body.

[0047] The unloading of precast components from the precast component production unit used in this construction project:

[0048] After the precast blank is heated and solidified, the operator first pulls the main handle 4 and the auxiliary handle 232 forward to pull the front baffle 23, the inner support column 3, the heating controller 41 and the heating rod 42 forward from the filling box 2. At the same time, the operator pushes the precast body forward with the other hand, so that the precast body produced by production moves forward synchronously with the inner support column 3. Then the precast body is pulled out from the filling box 2 and pulled out to the inclined plate 11. After that, the operator pulls the main handle 4 forward again. The main handle 4 drives the inner support column 3, the heating controller 41 and the heating rod 42 forward. At this time, the precast body is blocked by the front baffle 23, so that the inner support column 3 can be smoothly pulled out from the inside of the precast body. At the same time, the precast body supported by the inner support column 3 pushes the inclined plate 11 downward, causing the torsion spring 12 to flip downward. The precast body slides out along the downward inclined plate 11, completing the rapid unloading of the precast.

[0049] Example 2: Figure 11 and Figure 12 As shown, in this embodiment, during the prefabrication process, the hollow tube 92 used has several through-holes 921 on both its upper and lower sides. This embodiment is a further optimization based on Embodiment 1, such as... Figures 1-8 As shown, each inner support column 3 has an air extraction pipe 6 fixedly connected to its upper and lower sides; each air extraction pipe 6 has a filter cotton 60 in the middle of the side away from the inner support column 3; two air pumps 62 are bolted to the mounting bracket 1; an air collection pipe 61 is fixedly connected to the main handle 4; each air extraction pipe 6 is connected to the air collection pipe 61; each air collection pipe 61 has an insertion tube 611 connected to its left and right ends; the two insertion tubes 611 are respectively inserted into the inlet end of the adjacent air pump 62.

[0050] Each inner support column 3 has a front-to-back oriented strip groove 30 on its upper and lower sides; the exhaust pipe 6 can be easily embedded into the strip groove 30 of the adjacent inner support column 3, so that the upper and lower exhaust pipes 6 and the inner support column 3 together form a circular cross section that is compatible with the interior of the hollow tube 92.

[0051] While the heating controller 41 heats the inner support column 3 by controlling the heating rod 42, and the inner support column 3 heats the middle part of the precast blank through the hollow tube 92 and the steel frame 91, the air pump 62 draws air from the extraction pipe 6 through the air collection pipe 61. A small amount of billet slurry inside the precast blank and around the hollow tube 92, along with hot air from the air bubbles, enters the hollow tube 92 through the vent hole 921. The hot air entering the hollow tube 92 passes through the filter cotton 60 and enters the extraction pipe 6. The hot air then travels along the extraction pipe 6. Pipe 6, air collecting pipe 61, and insertion pipe 611 are extracted by air pump 62 to eliminate air bubbles mixed into the precast blank, making the slurry around the hollow pipe 92 more tightly bonded to the hollow pipe 92, thus ensuring the structural strength of the precast body. For the precast body, a portion of excess slurry is pre-injected as a reserve during the grouting process to replenish the portion of slurry that is removed during the air bubble removal process, ensuring that the amount of precast blank is not lower than the standard amount, and preventing the loss of some precast blank slurry from affecting the overall shape and strength of the blank.

[0052] The exhaust pipe 6 is equipped with a filter cotton 60. During the process of hot air being drawn in from the vent 921 and passing through the filter cotton 60, a small amount of precast blank slurry that enters the hollow tube 92 with the hot air will drip onto the filter cotton 60 and be intercepted by the filter cotton 60, thus preventing a small amount of precast blank slurry from being drawn into the exhaust pipe 6. After the precast part processing is completed, only the filter cotton 60 needs to be replaced periodically.

[0053] Each cannula 611 is designed to be tapered and contract towards the inlet end of the air pump 62. When the main handle 4 is pulled forward, the air collection tube 61 moves forward with the main handle 4, and the cannula 611 of the air collection tube 61 is pulled out from the air pump 62. During the process of the main handle 4 resetting backward, the cannula 611 is directly inserted into the inlet end of the air pump 62 through the tapered shape without the need for manual positioning, thus completing the rapid reset of the cannula 611.

[0054] Example 3: This example is a further optimization based on Example 2, such as... Figures 1-12 As shown, the filling box 2 has two upper and lower air storage bags 7 on the left and right sides respectively; each air storage bag 7 has an expansion part 70 on the side near the heat transfer plate 22; the outlet ends of the two air pumps 62 are each connected to an air supply pipe 63; the two air supply pipes 63 are respectively connected to the adjacent upper and lower air storage bags 7; and several air replenishment holes 612 are opened on the air collection pipe 61.

[0055] like Figure 8As shown, each of the two heat transfer plates 22 has two sliding rods 221 welded on it, and each sliding rod 221 is slidably connected to the filling box 2; two springs 222 are fixed between each of the two heat transfer plates 22 and the filling box 2, and the springs 222 are sleeved on the outer surface of the adjacent sliding rods 221; when gas is injected into the gas storage bag 7, the expansion part 70 of the gas storage bag 7 is supported, and the expanded expansion part 70 pushes the heat transfer plate 22 to squeeze the preform blank.

[0056] like Figure 9 and Figure 10 As shown, the air reservoir 7 has several air jets 71 on the side near the heat transfer plate 22; several plugs 8 are fixed to the heat transfer plate 22 and penetrate the heat transfer plate 22; each plug 8 is inserted into the adjacent air jet 71 and blocks the adjacent air jet 71 through the plug 8.

[0057] like Figure 10 As shown, each plug 8 has three vent holes 81 with different diameters on its upper and lower sides. The vent holes 81 penetrate the plug 8 in the left-right direction. Initially, the vent holes 81 are not connected to the air outlets 71 of the adjacent air storage bladder 7. When the expanding expansion part 70 pushes the heat transfer plate 22, the plug 8 is pulled out from the air outlet 71, and the vent holes 81 are connected to the air outlets 71. Each air outlet 71 is provided with a plug 72 corresponding to the vent hole 81. The plug 72 is inserted into the adjacent vent hole 81 to prevent a large amount of preform blank slurry from entering the vent hole 81 during the filling process of the preform blank.

[0058] As the outer surface of the preform is continuously heated and solidified, hot air can no longer be drawn from the preform through the vent 921. Instead, outside air is directly drawn into the air reservoir 7 through the air inlet 612. The expansion portion 70 of the air reservoir 7 is stretched and expands. The expanding portion 70 in the air reservoir 7 continuously pushes the heat transfer plate 22 to compress the preform inside the filling box 2, allowing the preform to form the size of a standard structural component. Moreover, the preform receives timely extrusion pressure from the heat transfer plates 22 on both sides, increasing the overall structural density of the preform and thus improving the overall structural strength of the preform body produced. The expanding portion 70 in the air reservoir 7... The expansion section 70 pushes the heat transfer plate 22 and its connected slide rod 221 to move towards the inside of the filling box 2. The heat transfer plate 22 drives the spring 222 to stretch. When the heat transfer plate 22 drives the plug 8 to disengage from the jet nozzle 71, the plug 72 disengages from the vent hole 81. The high-pressure hot air inside the air storage bag 7 is released through the jet nozzle 71 and the vent hole 81. The hot air released from the vent hole 81 continuously sprays onto the outer surface of the preform, so that the outer surface of the preform is separated from the heat transfer plate 22 by a layer of hot air, which accelerates the effect of peeling the preform from the surface of the heat transfer plate 22, making it easier to quickly remove the preform from the filling box 2 in subsequent steps.

[0059] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A precast component production device for building construction, comprising: a mounting frame (1), a filling box (2), an electric heating base plate (21), and a heat transfer plate (22). A filling box (2) is fixedly connected to the upper side of the mounting bracket (1); a control panel is installed on the filling box (2); an electric heating base plate (21) is installed at the bottom of the filling box (2); a heat transfer plate (22) is provided on each of the two opposite side walls inside the filling box (2); both heat transfer plates (22) are in close contact with the upper surface of the electric heating base plate (21); Its features are: It also includes a front baffle (23), an inner support column (3), a heating controller (41), a heating rod (42), and a vibration motor (5); A front baffle (23) is slidably connected to the front side of the filling box (2); the front baffle (23) is slidably connected to several inner support columns (3) arranged sequentially in the left and right directions; all the inner support columns (3) are equipped with a main handle (4); the main handle (4) is equipped with a heating controller (41); each inner support column (3) is equipped with a heating rod (42); all the heating rods (42) are electrically connected to the heating controller (41); the mounting frame (1) is equipped with the same number of vibration motors (5) as the inner support columns (3); the filling box (2) is equipped with the same number of vibration sleeves (51) as the vibration motors (5); the vibration component of each vibration motor (5) is fixedly connected to the adjacent vibration sleeve (51); the rear end of each inner support column (3) is connected to the adjacent vibration sleeve (51); the heating operation starts from the middle of the preform body through the heating rod (42) to ensure that the inside and outside of the preform body solidify synchronously.

2. The prefabricated component production device for building engineering according to claim 1, characterized in that: Each inner support column (3) has an air extraction pipe (6) fixed to its upper and lower sides; each air extraction pipe (6) has a layer of breathable sheet in the middle of the side away from the inner support column (3); the mounting bracket (1) is equipped with two air pumps (62); the main handle (4) is fixed to an air collection pipe (61); each air extraction pipe (6) is connected to the air collection pipe (61); the air collection pipe (61) has an air replenishment hole (612); the left and right ends of the air collection pipe (61) are each connected to an insertion tube (611); the two insertion tubes (611) are respectively inserted into the inlet end of the adjacent air pump (62).

3. The prefabricated component production device for building engineering according to claim 2, characterized in that: Each cannula (611) is configured to taper towards the inlet of the air pump (62).

4. The prefabricated component production device for building engineering according to claim 2, characterized in that: The filling box (2) is provided with air storage bladders (7) on the left and right sides respectively; each air storage bladder (7) is provided with an expansion part (70) on the side near the heat transfer plate (22); the outlet end of each of the two air pumps (62) is connected to an air supply pipe (63); the two air supply pipes (63) are connected to the adjacent air storage bladders (7) respectively.

5. The prefabricated component production device for building engineering according to claim 4, characterized in that: Several sliding rods (221) are fixedly connected to each of the two heat transfer plates (22), and each sliding rod (221) is slidably connected to the filling box (2); several spring pieces (222) are fixedly connected between the two heat transfer plates (22) and the filling box (2), and the spring pieces (222) are sleeved on the outer surface of the adjacent sliding rods (221); the two heat transfer plates (22) are respectively in close contact with the adjacent air storage bags (7).

6. The prefabricated component production device for building engineering according to claim 4, characterized in that: The air reservoir (7) has several air jets (71) on the side near the heat transfer plate (22); several plugs (8) that penetrate the heat transfer plate (22) are fixed on the heat transfer plate (22); each plug (8) is inserted into the adjacent air jet (71).

7. A prefabricated component production device for building engineering according to claim 6, characterized in that: Each plug (8) has several vent holes (81) that penetrate the plug (8).

8. A prefabricated component production device for building engineering according to claim 6, characterized in that: Each jet port (71) is provided with several plugs (72) for blocking adjacent vent holes (81).

9. A prefabricated component production device for building engineering according to claim 1, characterized in that: The front side of the mounting bracket (1) is rotatably connected to the inclined plate (11) via a pivot; a torsion spring (12) is fixed between each end of the inclined plate (11) and the mounting bracket (1), and the torsion spring (12) is sleeved on the outer surface of the pivot of the inclined plate (11).

10. A prefabricated component production device for building construction according to claim 2, characterized in that: Each inner support column (3) has a strip groove (30) on its upper and lower sides; the air extraction pipe (6) is embedded in the strip groove (30) of the adjacent inner support column (3).

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