Automatic demoulding mechanism for precast concrete parts and use method thereof
By designing an automated concrete prefabricated mold release mechanism, the problems of cumbersome demolding process and poor dimensional stability in concrete construction are solved, automatic demolding and dimensional stability are achieved, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202111302382.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-04
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2041-11-04
AI Technical Summary
In concrete construction, the demolding of the building inner holes requires all disassembly and joints, which is complicated to construct, and it is difficult to ensure shape and precision dimensions when forming molds. The existing demolding mechanism has problems such as poor self-locking force, poor versatility, and troubles to fix.
An automatic mold release mechanism for concrete prefabricated parts is designed, including a base system, a self-climbing system, a shrinkage system, a top cover system and a formwork system. A shrinkage system with a dual-drive power mechanism is adopted, combined with a self-climbing lifting and lifting mechanism to achieve compatibility between internal drive and external drive, with mechanical dead points to prevent loosening, and standard pin connections increase versatility.
Automatic mold release is achieved, reducing the complexity and time of manual operation, ensuring the dimensional stability and shape precision of concrete prefabricated parts, and improving construction efficiency and safety.
Smart Images

Figure CN113858401B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of concrete pouring, and in particular to an automatic demoulding mechanism for a prefabricated concrete part and a use method thereof. Background Art
[0002] When pouring concrete for internal hole-type buildings (septic tanks, pipe wells, bridge piers with internal holes, elevator shafts, etc.), demoulding of the internal holes of the building needs to be completely disassembled, which is cumbersome to construct and difficult to ensure the shape and its precise size when the mold is formed. The demoulding mechanism that can shrink in one piece has poor locking retention force. If there is no self-locking mechanism, it will loosen after a long period of vibration, resulting in a reduction in the molding size. In addition, special fasteners are required to connect the template and the drive mechanism, which have poor versatility and are difficult to fix. In addition, the demoulding shrinkage drive method is single, and demoulding cannot be driven from the inside. Lifting requires the help of external force, which has poor stability. The overhead crane cannot have a large load, and there are strict requirements on the weight of the mechanism itself. Summary of the invention
[0003] In view of the above-mentioned deficiencies, the present invention provides an automatic demoulding mechanism for a precast concrete part and a method for using the same.
[0004] The technical solution adopted by the present invention to solve the technical problem is: an automatic demoulding mechanism for precast concrete parts, including a base system, a self-climbing system, a shrinkage system, a top cover system and a template system;
[0005] The base system is arranged at the bottom of the formwork system, the top cover system is arranged at the top of the formwork system, and the shrinkage system is arranged at both sides of the formwork system;
[0006] The base system is used for supporting and adjusting the entire mechanism, the self-climbing system cooperates with the base system for lifting and lowering the entire mechanism, the contraction system and the formwork system are used for inward and outward support of the formwork during demoulding, and the top cover system is used for internal protection and introduction of concrete during pouring.
[0007] As an optimization, the base system includes a plurality of longitudinal support beams and transverse support beams overlapped with each other, and both ends of the transverse support beams are provided with retractable support legs, the retractable support legs are sleeved with first legs, and one side of the retractable support legs is provided with a support groove, and the first leg is fixedly connected to the retractable support legs by adjusting bolts;
[0008] The support groove is a wave-shaped groove, which is convenient for adjusting the extension length of the first leg;
[0009] A rotating frame is provided at the end of the retractable support leg, and a guide mechanism is provided on the rotating frame. The guide mechanism includes a guide bracket, and the guide bracket is rotatably connected to the rotating frame. A guide wheel is rotatably connected to the guide bracket, and a buffer spring is provided between the guide bracket and the retractable support leg.
[0010] The guide bracket rotatably connected to the rotating frame and the buffer spring arranged between the guide bracket and the retractable supporting leg both play a certain flexible buffering role.
[0011] As an optimization, the self-climbing system adopts a self-climbing lifting mechanism;
[0012] The self-climbing lifting mechanism includes a lifting chassis and a hydraulic power cylinder, the hydraulic power cylinder is arranged in the middle of the lifting chassis, the top of the hydraulic power cylinder is fixedly connected to the top cover system, the lifting chassis includes a mounting frame, one end of the mounting frame is provided with a connecting rod driving mechanism, and the other end is provided with a flexible guide wheel.
[0013] The connecting rod driving mechanism includes a driven rod, a driving rod and a second leg. One end of the driven rod is hinged to the mounting frame, and the other end is hinged to the driving rod. The second leg is also hinged to the driving rod. A pull rope mounting hole is provided on the driving rod. A sensor is provided under the connecting rod driving mechanism to detect whether the leg is retracted.
[0014] As an optimization, the self-climbing system adopts a self-climbing hoisting mechanism;
[0015] The self-climbing hoisting mechanism comprises a lifting and ejecting beam and a plurality of multi-stage hydraulic power cylinders arranged at the top of the prefabricated parts. The lifting and ejecting beam passes through the top cover system and is fixedly connected to the template system via a special connecting rod.
[0016] The upper and lower ends of the driving screw are both provided with a connecting rod pulling mechanism, the connecting rod pulling mechanism comprises a driving nut block and a pulling connecting rod, and the two ends of the pulling connecting rod are respectively hinged to the moving plate and the driving nut block;
[0017] Guide connecting blocks are arranged on both sides of the guide block, and a wedge-shaped locking piece is arranged between the guide connecting block and the movable plate.
[0018] When the driving screw rotates, the driving nut block moves downward, and reaches the balance point between the driving nut block and the pulling connecting rod, the movable plate is fully opened, and after the driving nut block passes the balance point, it is blocked by the guide block and cannot move downward. Since the driving nut block cannot be driven in the reverse direction after passing the balance point, the self-locking of the entire mechanism is achieved, thereby enhancing the stability of the fixation.
[0019] When the guide block and the guide connecting block are fully opened, a wedge-shaped locking piece is installed in the rectangular hole of the guide block to fix it.
[0020] As an optimization, the top cover system includes an outer frame, which is fixedly connected to the formwork system by pins; the cross-section of the outer frame is an isosceles right triangle, which is convenient for introducing concrete.
[0021] As an optimization, the movable plate and the template system are fixed by pins.
[0022] As an optimization, the cross section of the substrate is a right angle or a rounded angle.
[0023] A method for using an automatic demoulding mechanism for a precast concrete part comprises the following steps:
[0024] S1: Preparation work, first prepare the concrete wall with reserved holes and grooves, then place the device as a whole at the bottom of the concrete wall, adjust the shrinkage system so that the shrinkage system and the formwork system are fully opened, and fix it after reaching the required size;
[0025] S2: pouring base concrete, pouring concrete from top to bottom and waiting for the concrete to solidify;
[0026] S3: Demolding, the inner driving worm is driven to rotate manually or by a stepper motor, the inner driving worm rotates to drive the inner driving worm wheel, the inner driving worm wheel rotates to drive the driving screw, the driving screw rotates to drive the nut block to move up and down, and then drives the pulling connecting rod, and finally drives the moving plate to open or shrink, that is, to realize the opening or shrinking of the template system, and the shrinking of the template system can realize demoulding;
[0027] S4: The mechanism climbs upward as a whole. When the self-climbing lifting mechanism is adopted, the first leg located in the reserved hole groove of the concrete wall is firstly retracted, and then the hydraulic power cylinder is started to make the mechanism rise as a whole, so that the first leg reaches the position of the next reserved hole groove of the concrete wall, and the first leg is inserted into it and fixed, and then the pull rope is pulled to make the driving rod drive the second leg to be retracted from the reserved hole groove of the concrete wall, and the hydraulic power cylinder is contracted to make the second leg reach the position of the next reserved hole groove of the concrete wall, and the driving rod is pressed to make the second leg inserted into it and fixed;
[0028] When the self-climbing lifting mechanism is used, the first leg located in the reserved hole groove of the concrete wall is first retracted, and then the hydraulic power cylinder is started to make the mechanism rise as a whole, so that the first leg reaches the position of the next reserved hole groove of the concrete wall, and the first leg is inserted into it and fixed, and the multi-stage hydraulic power cylinder is started to drive the lifting of the ejection beam. The lifting of the ejection beam is achieved by lifting the template system, the base system and the separation drive system through the special connecting rod to move upward as a whole to achieve climbing;
[0029] S5: pour a new layer of concrete. After the mechanism is fixed and self-locked, pour concrete from top to bottom again and wait for the concrete to solidify.
[0030] S6: loop the steps from S3 to S5.
[0031] The present invention has the following beneficial effects:
[0032] 1. The retraction system adopts a dual-drive power mechanism compatible with internal drive and external drive, which can realize the operation of personnel above the top cover system and also realize the operation of personnel in the operation cavity of the mechanism;
[0033] 2. Use a shrinking system with a mechanical dead point to prevent loosening, to prevent the shrinking system from shrinking inwards due to non-active driving caused by vibration and other reasons, thus avoiding changes in the size of the prefabricated parts;
[0034] 3. The connection between the formwork system and the formwork system, and the connection between the shrinkage system and the formwork system are all connected by standard pins, which increases versatility and reduces installation difficulty;
[0035] 4. The self-climbing system adopts a rigid and flexible guiding mechanism to ensure stability during lifting and prevent the entire mechanism from being scratched and damaged by the prefabricated wall, thereby damaging the wall or the entire mechanism;
[0036] 5. The base system adopts a special support mechanism to ensure the stability of the whole set of support;
[0037] 6. The base system and the self-climbing system adopt a double-insurance support mechanism, which acts as different fulcrums when the system is lifted;
[0038] 7. The self-climbing system uses hydraulic pressure as the climbing power, which has stable movement and can provide a large load-bearing capacity;
[0039] 8. The top of the top cover system is connected by arc transitions, which is conducive to the introduction of concrete and reduces the residue on the cover. The positioning pins are used for positioning, which is conducive to the rapid installation of the top cover system.
[0040] 9. The overall frame is mostly made of aluminum alloy extrusion profiles, which reduces processing difficulty, reduces manufacturing costs, reduces its own weight, and improves structural strength;
[0041] 10. The external formwork of the formwork system adopts standard aluminum formwork to increase the versatility in the industry. At the same time, aluminum film plates of different widths are used to facilitate free combination of sizes to meet the size requirements of construction;
[0042] 11. By replacing the substrates of different shapes of the shrinking system, the forming of different chamfer shapes can be achieved, such as right angles, chamfers, large arc angles, etc.
[0043] 12. During overall lifting, all operators operate inside the equipment operation room, ensuring the safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0045] Figure 2 It is a schematic diagram of the base system and the self-climbing lifting mechanism of the present invention;
[0046] Figure 3 for Figure 2 A magnified schematic diagram of part A;
[0047] Figure 4 It is a schematic diagram of the self-climbing hoisting mechanism of the present invention;
[0048] Figure 5 It is a schematic diagram of the retractable support leg and the guide mechanism of the present invention;
[0049] Figure 6 It is a schematic diagram of the guide mechanism of the present invention;
[0050] Figure 7 It is a schematic diagram of the connection between the shrinkage system and the template system of the present invention;
[0051] Figure 8 is a schematic top view of the contraction system of the present invention;
[0052] Fig. 9 is a front view schematic diagram of the contraction system of the present invention;
[0053] Fig.10 It is a detailed schematic diagram of the contraction system of the present invention;
[0054] Fig.11 for Figure 4 A magnified schematic diagram of part B;
[0055] Fig.12 is a schematic diagram of a right-angle substrate of the present invention;
[0056] Fig.13 is a schematic diagram of a rounded corner substrate of the present invention;
[0057] Fig.14 Schematic diagram of a chamfered substrate of the present invention.
[0058] Among them, 1. Base system, 2. Self-climbing system, 3. Retraction system, 4. Top cover system, 5. Formwork system, 101. Longitudinal support beam, 102. Transverse support beam, 103. Retractable support leg, 104. Guide mechanism, 1031. Support groove, 1032. First support leg, 1033. Adjustment bolt, 1041. Rotating frame, 1042. Buffer spring, 1043. Guide wheel, 1044. Guide bracket, 201. Hydraulic power cylinder, 202. Lifting chassis, 203. Multi-stage hydraulic power cylinder, 204. Lifting and disengaging Beam, 2021, mounting frame, 2022, driven rod, 2023, driving rod, 2024, second leg, 2025, sensor, 2026, flexible guide wheel, 2041, special connecting rod, 301, base plate, 302, moving plate, 303, driving screw, 304, driving nut block, 305, pulling connecting rod, 306, guide block, 307, guide connecting block, 308, wedge-shaped locking piece, 309, inner drive worm gear, 310, inner drive clutch block, 311, inner drive worm, 401, outer frame, 402, pin. DETAILED DESCRIPTION
[0059] In order to make the technical means, technical features, invention objectives and technical effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific illustrations.
[0060] Embodiment 1:
[0061] like Figure 1 — Figure 3 as well as Figure 5 — Fig.12 As shown, the present invention provides an automatic demoulding mechanism for precast concrete parts, comprising a base system 1, a self-climbing system 2, a shrinking system 3, a top cover system 4 and a formwork system 5;
[0062] The base system 1 is arranged at the bottom of the formwork system 5, the top cover system 4 is arranged at the top of the formwork system 5, and the shrinkage system 3 is arranged at both sides of the formwork system 5;
[0063] The base system 1 is used for supporting and adjusting the entire mechanism, the self-climbing system 2 cooperates with the base system 1 for lifting and lowering the entire mechanism, the retraction system 3 and the formwork system 5 are used for inward and outward support of the formwork during demoulding, and the top cover system 4 is used for internal protection and introduction of concrete during pouring.
[0064] In this embodiment, the base system 1 includes a plurality of longitudinal support beams 101 and transverse support beams 102 overlapped with each other, and both ends of the transverse support beams 102 are provided with retractable support legs 103, and the retractable support legs 103 are sleeved with first support legs 1032, and one side of the retractable support legs 103 is provided with support grooves 1031, and the first support legs 1032 are fixedly connected to the retractable support legs 103 by adjusting bolts 1033;
[0065] The support groove 1031 is a wave-shaped groove, which is convenient for adjusting the extension length of the first leg 1032;
[0066] A rotating frame 1041 is provided at the end of the retractable support leg 103, and a guide mechanism 104 is provided on the rotating frame 1041. The guide mechanism 104 includes a guide bracket 1044, and the guide bracket 1044 is rotatably connected to the rotating frame 1041. A guide wheel 1043 is rotatably connected to the guide bracket 1044, and a buffer spring 1042 is provided between the guide bracket 1044 and the retractable support leg 103.
[0067] The guide bracket 1044 rotatably connected to the rotating frame 1041 and the buffer spring 1042 arranged between the guide bracket 1044 and the retractable support leg 103 both play a certain flexible buffering role.
[0068] In this embodiment, the self-climbing system 2 adopts a self-climbing lifting mechanism;
[0069] The self-climbing lifting mechanism includes a lifting chassis 202 and a hydraulic power cylinder 201. The hydraulic power cylinder 201 is arranged in the middle of the lifting chassis 202. The top of the hydraulic power cylinder 201 is fixedly connected to the top cover system 4. The lifting chassis 202 includes a mounting frame 2021. A connecting rod driving mechanism is arranged at one end of the mounting frame 2021, and a flexible guide wheel 2026 is arranged at the other end.
[0070] The connecting rod driving mechanism includes a driven rod 2022, a driving rod 2023 and a second leg 2024. One end of the driven rod 2022 is hinged to the mounting frame 2021, and the other end is hinged to the driving rod 2023. The second leg 2024 is also hinged to the driving rod 2023. A pull rope mounting hole is provided on the driving rod 2023. A sensor 2025 is provided under the connecting rod driving mechanism for detecting whether the leg is retracted.
[0071] In this embodiment, the contraction system 3 includes a base plate 301 and a moving plate 302. Guide blocks 306 are provided at both upper and lower ends of the base plate 301. A driving screw 303 is rotatably connected between the two guide blocks 306. An internal driving worm gear 309 is provided in the middle of the driving screw 303. An internal driving worm 311 is rotatably connected to the base plate 301. The internal driving worm 311 is meshed with the internal driving worm gear 309. An internal driving clutch block 310 is provided on the internal driving worm gear 309. The internal driving clutch block 310 is sleeved on the driving screw 303.
[0072] The upper and lower ends of the driving screw rod 303 are both provided with a connecting rod pulling mechanism, and the connecting rod pulling mechanism includes a driving nut block 304 and a pulling connecting rod 305, and the two ends of the pulling connecting rod 305 are respectively hinged to the moving plate 302 and the driving nut block 304;
[0073] The left and right sides of the guide block 306 are both provided with guide connection blocks 307 , and a wedge-shaped locking piece 308 is provided between the guide connection block 307 and the movable plate 302 .
[0074] When the driving screw 303 rotates and the driving nut block 304 moves downward, and reaches the balance point between the driving nut block 304 and the pulling connecting rod 305, the movable plate 302 is fully opened. After the driving nut block 304 passes the balance point, it is blocked by the guide block 306 and cannot move downward. Since the driving nut block 304 cannot be driven in the reverse direction after passing the balance point, the self-locking of the entire mechanism is achieved, thereby enhancing the stability of the fixation.
[0075] When the guide block 306 and the guide connecting block 307 are fully opened, a wedge-shaped locking piece 308 is installed in the rectangular hole of the guide block 306 for fixing.
[0076] In this embodiment, the top cover system 4 includes an outer frame 401, and the outer frame 401 is fixedly connected to the formwork system 5 through pins 402; the cross-section of the outer frame 401 is an isosceles right triangle, which is convenient for concrete introduction.
[0077] In this embodiment, the movable plate 302 and the template system 5 are fixed by pins 402 .
[0078] like Fig.12 — Fig.14 As shown, the cross section of the substrate 301 is a right angle or a rounded angle.
[0079] Embodiment 2:
[0080] like Figure 4 As shown, different from the embodiment 1, in this embodiment, the self-climbing system 2 adopts a self-climbing hoisting mechanism;
[0081] The self-climbing lifting mechanism includes a lifting and ejecting beam 204 and a plurality of multi-stage hydraulic power cylinders 201 arranged at the top of the prefabricated parts. The lifting and ejecting beam 204 passes through the top cover system 4 and is fixedly connected to the formwork system 5 via a dedicated connecting rod 2041.
[0082] A method for using an automatic demoulding mechanism for a precast concrete part comprises the following steps:
[0083] S1: Preparation work, first prepare a concrete wall with reserved holes and grooves, then place the device as a whole at the bottom of the concrete wall, adjust the shrinkage system 3 so that the shrinkage system 3 and the formwork system 5 are fully opened, and fix them after reaching the required size;
[0084] S2: pouring base concrete, pouring concrete from top to bottom and waiting for the concrete to solidify;
[0085] S3: demoulding, manually or by a stepper motor driving the inner driving worm 311 to rotate, the inner driving worm 311 rotates to drive the inner driving worm wheel 309 to rotate, the inner driving worm wheel 309 rotates to rotate the driving screw 303, the driving screw 303 rotates to realize the up and down movement of the driving nut block 304, and then drives the pulling connecting rod 305, and finally drives the moving plate 302 to open or shrink, that is, to realize the opening or shrinking of the template system 5, and the shrinking of the template system 5 can realize demoulding;
[0086] S4: The mechanism as a whole climbs upward. When the self-climbing lifting mechanism is adopted, the first leg 1032 located in the reserved hole groove of the concrete wall is firstly retracted, and then the hydraulic power cylinder 201 is started to make the mechanism as a whole rise, so that the first leg 1032 reaches the position of the next reserved hole groove of the concrete wall, and the first leg 1032 is inserted therein and fixed, and then the pull rope is pulled to make the driving rod 2023 drive the second leg 2024 to be retracted from the reserved hole groove of the concrete wall, and the hydraulic power cylinder 201 is contracted to make the second leg 2024 reach the position of the next reserved hole groove of the concrete wall, and the driving rod 2023 is pressed to make the second leg 2024 inserted therein and fixed;
[0087] When the self-climbing lifting mechanism is used, the first leg 1032 located in the reserved hole groove of the concrete wall is first retracted, and then the hydraulic power cylinder 201 is started to make the mechanism rise as a whole, so that the first leg 1032 reaches the position of the next reserved hole groove of the concrete wall, and the first leg 1032 is inserted into it and fixed, and the multi-stage hydraulic power cylinder 201 is started to drive the lifting of the escape beam 204. The lifting of the escape beam 204 lifts the formwork system 5, the base system 1 and the separation drive system to move upward as a whole through the special connecting rod 2041 to achieve climbing;
[0088] S5: pour a new layer of concrete. After the mechanism is fixed and self-locked, pour concrete from top to bottom again and wait for the concrete to solidify.
[0089] S6: loop the steps from S3 to S5.
[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should belong to the technical scope of the present invention.
Claims
1. An automatic demoulding mechanism for a precast concrete part, characterized in that: Including base system, self-climbing system, retraction system, top cover system and formwork system; The base system is arranged at the bottom of the formwork system, the top cover system is arranged at the top of the formwork system, and the shrinkage system is arranged at both sides of the formwork system; The base system is used for supporting and adjusting the whole mechanism, the self-climbing system cooperates with the base system for lifting and lowering the whole mechanism, the contraction system and the formwork system are used for inward and outward support of the formwork during demoulding, and the top cover system is used for internal protection and introduction of concrete during pouring; The base system comprises a plurality of longitudinal support beams and transverse support beams overlapped with each other, and both ends of the transverse support beams are provided with retractable support legs, the retractable support legs are sleeved with first legs, one side of the retractable support legs is provided with a support groove, and the first leg is fixedly connected to the retractable support legs by adjusting bolts; The support groove is a wave-shaped groove, which is convenient for adjusting the extension length of the first leg; A rotating frame is provided at the end of the retractable support leg, and a guide mechanism is provided on the rotating frame. The guide mechanism includes a guide bracket, and the guide bracket is rotatably connected to the rotating frame. A guide wheel is rotatably connected to the guide bracket, and a buffer spring is provided between the guide bracket and the retractable support leg.
2. The automatic demoulding mechanism for precast concrete parts according to claim 1, characterized in that: The self-climbing system adopts a self-climbing lifting mechanism; The self-climbing lifting mechanism includes a lifting chassis and a hydraulic power cylinder, the hydraulic power cylinder is arranged in the middle of the lifting chassis, the top of the hydraulic power cylinder is fixedly connected to the top cover system, the lifting chassis includes a mounting frame, one end of the mounting frame is provided with a connecting rod driving mechanism, and the other end is provided with a flexible guide wheel. The connecting rod driving mechanism includes a driven rod, a driving rod and a second leg. One end of the driven rod is hinged to the mounting frame, and the other end is hinged to the driving rod. The second leg is also hinged to the driving rod. A pull rope mounting hole is provided on the driving rod. A sensor is provided under the connecting rod driving mechanism to detect whether the leg is retracted.
3. The automatic demoulding mechanism for precast concrete parts according to claim 1, characterized in that: The self-climbing system adopts a self-climbing hoisting mechanism; The self-climbing hoisting mechanism comprises a lifting and ejecting beam and a plurality of multi-stage hydraulic power cylinders arranged at the top of the prefabricated parts. The lifting and ejecting beam passes through the top cover system and is fixedly connected to the template system via a special connecting rod.
4. The automatic demoulding mechanism for precast concrete parts according to any one of claims 2 or 3, characterized in that: The contraction system includes a base plate and a moving plate, wherein guide blocks are arranged at both upper and lower ends of the base plate, a driving screw is rotatably connected between the two guide blocks, an inner driving worm wheel is arranged in the middle of the driving screw, an inner driving worm is rotatably connected to the base plate, the inner driving worm is meshed with the inner driving worm wheel, an inner driving clutch block is arranged on the inner driving worm wheel, and the inner driving clutch block is sleeved on the driving screw; The upper and lower ends of the driving screw are both provided with a connecting rod pulling mechanism, the connecting rod pulling mechanism comprises a driving nut block and a pulling connecting rod, and the two ends of the pulling connecting rod are respectively hinged to the moving plate and the driving nut block; Guide connecting blocks are arranged on both sides of the guide block, and a wedge-shaped locking piece is arranged between the guide connecting block and the movable plate.
5. The automatic demoulding mechanism for precast concrete parts according to claim 4, characterized in that: The top cover system comprises an outer frame, and the outer frame is fixedly connected to the formwork system through pins; the cross section of the outer frame is an isosceles right triangle, which is convenient for concrete introduction.
6. The automatic demoulding mechanism for precast concrete parts according to claim 5, characterized in that: The movable plate is fixed to the template system via pins.
7. The automatic demoulding mechanism for precast concrete parts according to claim 6, characterized in that: The cross section of the substrate is a right angle or a rounded angle.
8. The method for using the automatic demoulding mechanism for precast concrete parts according to any one of claims 2 to 7, comprising the following steps: S1: Preparation work, first prepare the concrete wall with reserved holes and grooves, then place the device as a whole at the bottom of the concrete wall, adjust the shrinkage system so that the shrinkage system and the formwork system are fully opened, and fix it after reaching the required size; S2: pouring base concrete, pouring concrete from top to bottom and waiting for the concrete to solidify; S3: Demolding, the inner driving worm is driven to rotate manually or by a stepper motor, the inner driving worm rotates to drive the inner driving worm wheel, the inner driving worm wheel rotates to drive the driving screw, the driving screw rotates to drive the nut block to move up and down, and then drives the pulling connecting rod, and finally drives the moving plate to open or shrink, that is, to realize the opening or shrinking of the template system, and the shrinking of the template system can realize demoulding; S4: The mechanism climbs upward as a whole. When the self-climbing lifting mechanism is adopted, the first leg located in the reserved hole groove of the concrete wall is firstly retracted, and then the hydraulic power cylinder is started to make the mechanism rise as a whole, so that the first leg reaches the position of the next reserved hole groove of the concrete wall, and the first leg is inserted into it and fixed, and then the pull rope is pulled to make the driving rod drive the second leg to be retracted from the reserved hole groove of the concrete wall, and the hydraulic power cylinder is contracted to make the second leg reach the position of the next reserved hole groove of the concrete wall, and the driving rod is pressed to insert the second leg into it and fix it; When the self-climbing lifting mechanism is used, the first leg located in the reserved hole groove of the concrete wall is first retracted, and then the hydraulic power cylinder is started to make the mechanism rise as a whole, so that the first leg reaches the position of the next reserved hole groove of the concrete wall, and the first leg is inserted into it and fixed, and the multi-stage hydraulic power cylinder is started to drive the lifting of the ejection beam. The lifting of the ejection beam is achieved by lifting the template system, the base system and the separation drive system through the special connecting rod to move upward as a whole to achieve climbing; S5: pour a new layer of concrete. After the mechanism is fixed and self-locked, pour concrete from top to bottom again and wait for the concrete to solidify. S6: loop the steps from S3 to S5.
Citation Information
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