Prefabricated part quick demolding device suitable for fabricated building
By using a rapid demolding device in prefabricated buildings, which utilizes left-right swaying and pushing mechanisms, the problems of time-consuming, labor-intensive, and easily damaged demolding of prefabricated components are solved, achieving efficient and stable demolding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-06
AI Technical Summary
In prefabricated buildings, the traditional demolding process for prefabricated components is time-consuming and labor-intensive, and can easily lead to damage to the components, affecting production efficiency and quality.
A rapid demolding device is adopted, which uses a combination of left and right swaying and pushing mechanism, with the cooperation of springs and cylinders, to realize the relative movement between the inner and outer boxes of the mold, loosen the connection between the precast component and the mold, and precisely push the component to demold through the mechanical device.
It achieves an efficient and stable demolding process, reduces the risk of component damage, and improves production efficiency and quality.
Smart Images

Figure CN223971885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated building technology, and in particular to a rapid demolding device for prefabricated components suitable for prefabricated buildings. Background Technology
[0002] Prefabricated components in prefabricated buildings are building parts that are precisely manufactured in a factory according to the design and then transported to the construction site for assembly. Examples include structural components such as columns, beams, and floor slabs; enclosing components such as interior and exterior walls; and functional components such as staircases. Compared to traditional construction, standardized factory production ensures stable and reliable quality, significantly shortens the construction cycle, effectively reduces on-site wet work and construction waste, achieves energy conservation and environmental protection, and comprehensively improves the construction efficiency of the construction industry.
[0003] A Chinese utility model patent with authorization announcement number CN 218803057U and patent name "A Precast Component Production Equipment for Buildings" discloses a precast component production equipment for buildings, including a base plate, two support plates fixedly connected to the top of the base plate, a mold fixedly connected to the top of the two support plates, a mold cover provided on the top of the mold, a pull ring fixedly connected to the top of the mold cover, and a release mold provided inside the mold.
[0004] However, in the traditional production process of prefabricated building components, when large prefabricated components are manually demolded, workers need to spend a lot of time and energy to remove the components. The operation is extremely cumbersome and inefficient. Furthermore, direct removal may damage the components, which seriously affects production efficiency and product quality. Utility Model Content
[0005] The purpose of this invention is to provide a rapid demolding device for prefabricated components suitable for prefabricated buildings, which can shorten demolding time and reduce demolding damage rate.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quick demolding device for prefabricated components suitable for prefabricated buildings, including a base, the base including a bottom plate and two side plates, the bottom plate and the two side plates being fixedly connected, a left and right reciprocating mechanism being slidably connected on the two side plates, a pushing reciprocating mechanism being fixedly connected on both sides above the left and right reciprocating mechanism, the pushing reciprocating mechanism penetrating through the bottom of the mold, and its top end being on the same plane as the bottom of the mold near the inside, the two sides of the mold being connected to the left and right reciprocating mechanism through a fixing rod;
[0007] The lifting reciprocating mechanism includes a slider and a slide groove. A limit block is provided through the lower part of the slider. The two ends of the limit block are fixedly connected to the inner side of the slide groove. A spring is wound around the limit block on both sides of the slider. The two ends of the spring are connected to the two sides of the slide groove and the lower part of the slider. The bottom of the slide groove is fixedly connected to the telescopic shaft of the cylinder. The bottom of the cylinder is fixedly connected to the left and right reciprocating mechanism. The mold includes an outer box and an inner box. The inner box is placed inside the outer box. The bottom of the inner box is movably fitted with the bottom of the outer box. The inner side of the outer box, which is connected to the fixed rod, is connected to the opposite outer side of the inner box through a spring. The other two sides of the outer box are movably fitted with the inner box. The upper part of the slider is embedded in the bottom of the inner box, and the slider is slidably connected with the inner box.
[0008] By adopting the above technical solution, during the left and right reciprocating process, the left and right reciprocating mechanism can drive the upper lifting reciprocating mechanism and the mold as a whole to sway left and right. The inertial motion causes the spring in the lifting reciprocating mechanism to play its role, driving the slider to slide left and right on the limit block. When the slider slides left and right, since the inner box and outer box in the mold are connected by the spring, the sliding of the slider causes the inner box in contact with it to move left and right together. The movement of the inner box causes the spring to undergo elastic deformation, and the spring then generates a reverse elastic force. Since the bottom of the inner box is in contact with the bottom of the outer box, and the other two sides of the outer box are also in contact with the inner box, the inner box slides left and right along the direction allowed by the contact surface with the outer box under the action of the elastic force, causing the inner box and the outer box to form relative movement. The left and right swaying of the inner box causes the contact state between the precast component and the two side walls of the inner box to loosen, thereby achieving the effect of loosening the two.
[0009] During the lifting process, when the cylinder's telescopic shaft extends, the slide moves upward, and the slider inside the slide is affected by it, generating upward thrust. The slider slides relative to the inner box, causing the slider to leave the bottom of the inner box. This thrust is precisely applied to the precast component, smoothly pushing it towards the outside of the mold. When the cylinder's telescopic shaft retracts, the slider and slide return to their original positions, preparing for the next demolding operation. This cycle achieves an efficient and stable demolding effect.
[0010] By swaying left and right, the precast components are effectively prevented from sticking together and are loosened from the connection with the inner box of the mold. Then, they are pushed upward to make the precast components move smoothly to the outside. When the cylinder retracts, the relevant parts return to their original positions. The whole process is precisely executed by the mechanical device, which achieves the effect of saving time and effort in mechanical demolding, while reducing damage to the components.
[0011] A further feature of this invention is that the reciprocating mechanism includes a support plate and an eccentric wheel. The two ends of the support plate are slidably connected to the side plate via support rods. The second fixed rod below the support plate is fixedly connected to the dual shafts of the eccentric wheel. The two sides of the second fixed rod are fixedly connected to the support plate. The transmission shaft of the eccentric wheel is connected to the output shaft of the drive motor. The drive motor is fixed on the base plate.
[0012] By adopting the above technical solution, the output shaft of the drive motor drives the transmission shaft to rotate, thereby causing the eccentric wheel to make circular motion. Due to its eccentric structure, the eccentric wheel generates variable force when rotating, which is transmitted to the support plate through the fixed rod. The two ends of the support plate are slidably connected to the side plate by the support rod. Under the action of the variable force transmitted from the eccentric wheel, it slides back and forth left and right under the constraint of the side plate, realizing the function of converting the rotational motion of the motor into linear reciprocating motion.
[0013] A further feature of this invention is that the slider is T-shaped, and the corresponding areas of the inner and outer boxes below the T-shaped slider are hollow.
[0014] By adopting the above technical solution, the hollow structure provides ample space for the slider to slide left and right under the action of the spring, which can easily drive the inner box and the outer box to move relative to each other.
[0015] A further feature of this invention is that the limiting block is a square block.
[0016] By adopting the above technical solution, the square-structured limiting block can effectively restrict the movement of the slider. When the slider rises to a specific height and leaves the bottom of the mold, the limiting block can prevent the slider from wobbling back and forth, ensuring that it can return to its initial position smoothly and steadily after completing the action.
[0017] The beneficial effects of this utility model are:
[0018] 1. By swaying left and right, the precast components are effectively prevented from sticking together and are loosened from the connection with the inner box of the mold. Then, they are pushed upward to make the precast components move smoothly to the outside. When the cylinder retracts, the relevant parts return to their original positions. The whole process is precisely executed by the mechanical device, which achieves the effect of saving time and effort in mechanical demolding, while reducing damage to the components.
[0019] 2. During the left-right reciprocating process, the left-right reciprocating mechanism can drive the upper pushing reciprocating mechanism and the mold as a whole to sway left and right. The inertial motion causes the spring in the pushing reciprocating mechanism to play its role, driving the slider to slide left and right on the limit block. When the slider slides left and right, since the inner box and outer box in the mold are connected by the second spring, the sliding of the slider causes the inner box in contact with it to move together. The movement of the inner box causes the second spring to undergo elastic deformation, and the second spring then generates a reverse elastic force. Since the bottom of the inner box is in contact with the bottom of the outer box, and the other two sides of the outer box are also in contact with the inner box, the inner box slides left and right in the direction allowed by the contact surface with the outer box under the action of the elastic force, causing the inner box and the outer box to form relative movement. The left-right swaying of the inner box causes the contact state between the precast component and the two side walls of the inner box to loosen, achieving the effect of loosening the two, thereby reducing the damage to the component when the precast component is ejected.
[0020] 3. During the lifting process, when the cylinder's telescopic shaft extends, the slide rail moves upward, and the slider inside the slide rail is affected by it, generating upward thrust. The slider slides relative to the inner box, causing the slider to leave the bottom of the inner box. This thrust is precisely applied to the precast component, smoothly pushing it towards the outside of the mold. When the cylinder's telescopic shaft retracts, the slider and slide rail also return to their original positions, preparing for the next demolding operation. This cycle achieves an efficient and stable demolding effect.
[0021] 4. The output shaft of the drive motor drives the transmission shaft to rotate, which in turn causes the eccentric wheel to make circular motion. Due to its eccentric structure, the eccentric wheel generates variable force when rotating, which is transmitted to the support plate through the fixed rod. The two ends of the support plate are slidably connected to the side plate by the support rod. Under the action of the variable force transmitted from the eccentric wheel, it slides back and forth left and right under the constraint of the side plate, realizing the function of converting the motor's rotational motion into linear reciprocating motion. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a three-dimensional structural diagram of a rapid demolding device for prefabricated components applicable to prefabricated buildings, according to this utility model.
[0024] Figure 2 This is a front sectional view of the lifting reciprocating mechanism and mold of a prefabricated component quick demolding device applicable to prefabricated buildings according to this utility model.
[0025] Figure 3This is a partial perspective view of the lifting and reciprocating mechanism of a rapid demolding device for prefabricated components applicable to prefabricated buildings, according to this utility model.
[0026] Figure 4 This is a top view of a prefabricated component quick demolding device applicable to prefabricated buildings, according to this utility model.
[0027] Figure 5 This is an exploded view of the left-right reciprocating mechanism of a rapid demolding device for prefabricated components applicable to prefabricated buildings, according to this utility model.
[0028] In the diagram, 1. Base plate; 2. Side plate; 3. Mold; 4. Fixing rod one; 5. Slider; 6. Slide groove; 7. Limiting block; 8. Spring one; 9. Cylinder; 10. Outer box; 11. Inner box; 12. Spring two; 13. Support plate; 14. Eccentric wheel; 15. Support rod; 16. Fixing rod two; 17. Drive motor. Detailed Implementation
[0029] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0030] like Figure 1 As shown, a rapid demolding device for prefabricated components suitable for prefabricated buildings includes a base, which includes a bottom plate 1 and two side plates 2. The bottom plate 1 and the two side plates 2 are fixedly connected. A left-right reciprocating mechanism is slidably connected to the two side plates 2. A lifting reciprocating mechanism is fixedly connected to both sides above the left-right reciprocating mechanism. The lifting reciprocating mechanism passes through the bottom of the mold 3, and its top is on the same plane as the bottom of the mold 3 near the inside. The two sides of the mold 3 are connected to the left-right reciprocating mechanism through a fixed rod 4. The left-right reciprocating mechanism drives the upper lifting reciprocating mechanism and the mold 3 to shake left and right, causing the large prefabricated component inside the mold 3 to loosen between itself and the two side walls of the mold 3. Then, the lifting reciprocating mechanism pushes the large prefabricated component towards the outside of the mold 3, so that the large prefabricated component can be demolded smoothly. The robotic arm clamps the large prefabricated component, then smoothly picks it up and transfers it to a designated area for subsequent use.
[0031] like Figure 2 , 3As shown in Figure 4, the lifting reciprocating mechanism includes a slider 5 and a slide 6. A limit block 7 is provided through the lower part of the slider 5. The two ends of the limit block 7 are fixedly connected to the inner side of the slide 6. Springs 8 are wound around the limit blocks 7 on both sides of the slider 5. The two ends of the springs 8 are connected to the lower part of the slider 5 and the two sides of the slide 6 respectively. The bottom of the slide 6 is fixedly connected to the telescopic shaft of the cylinder 9. The bottom of the cylinder 9 is fixedly connected to the left and right reciprocating mechanism. The mold 3 includes an outer box 10 and an inner box 11. The inner box 11 is placed inside the outer box 10. The bottom of the inner box 11 is movably fitted with the bottom of the outer box 10. The inner side of the outer box 10, which is connected to the fixed rod 4, is connected to the outer side of the inner box 11 opposite to it through springs 12. The other two sides of the outer box 10 are movably fitted with the inner box 11. The upper part of the slider 5 is embedded in the bottom of the inner box 11. The top of the slider 5 is on the same plane as the bottom of the mold 3 near the inside. The slider 5 is slidably connected with the inner box 11. The slider 5 and the inner box 11 can slide up and down relative to each other.
[0032] During the reciprocating motion, the spring 8 of the reciprocating mechanism, driven by inertia, causes the slider 5 to slide left and right on the limit block 7. The sliding of slider 5 causes the inner box 11, which is in contact with it, to move left and right together. There is no relative displacement between the inner box 11 and slider 5 in the left and right directions. The movement of the inner box 11 causes the spring 12 to undergo elastic deformation, and the spring 12 then generates a reverse elastic force. Under the action of this elastic force, the inner box 11 slides left and right along the direction allowed by the contact surface with the outer box 10, causing relative motion between the inner box 11 and the outer box 10. The left side of the inner box 11... The rightward swaying loosens the fit between the precast component and the two side walls of the inner box 11, which helps reduce damage to the component when it is ejected. During the lifting process, when the telescopic shaft of the cylinder 9 extends, the slide 6 moves and drives the slider 5 located in the slide 6 to generate upward thrust. The slider 5 leaves the bottom of the inner box 11 and pushes the large precast component smoothly towards the outside of the mold 3. When the telescopic shaft of the cylinder 9 retracts, the slider 5 and the slide 6 also return to their original positions, preparing for the next demolding operation. This cycle achieves efficient and stable demolding.
[0033] like Figure 5 As shown, the reciprocating mechanism includes a support plate 13 and an eccentric wheel 14. The two ends of the support plate 13 are slidably connected to the side plate 2 via support rods 15. The two sides of the fixed rod 16 are fixedly connected to the support plate 13. The fixed rod 16 below the support plate 13 is fixedly connected to the dual shafts of the eccentric wheel 14. The transmission shaft of the eccentric wheel 14 is connected to the drive motor 17. The drive motor 17 is fixed on the base plate 1. The output shaft of the drive motor 17 drives the transmission shaft to rotate, thereby causing the eccentric wheel 14 to perform circular motion. The force generated by the circular motion is transmitted to the support plate 13 through the fixed rod 16. The two ends of the support plate 13 are slidably connected to the side plate 2 via support rods 15. It is constrained by the side plate 2 and slides left and right, converting the rotational motion of the motor into linear reciprocating motion.
[0034] The slider 5 is T-shaped. The area of the inner box 11 and the outer box 10 below the T-shaped slider 5 is hollow. The limiting block 7 is square. With the help of the ample space provided by the hollow structure, the slider 5 slides left and right under the action of the spring 8, which drives the inner box 11 and the outer box 10 to move relative to each other. When the slider 5 rises to a certain height and leaves the bottom of the mold, the limiting block 7 with square structure can prevent the slider from wobbling back and forth, and ensure that it can return to the initial position smoothly and smoothly when the telescopic shaft of the cylinder 9 retracts.
[0035] The working process of this utility model's rapid demolding device for prefabricated components in prefabricated buildings is as follows:
[0036] S1. First, pour the concrete material into the inner box 11. After a period of drying and solidification, start the drive motor 17. The output shaft of the drive motor 17 drives the transmission shaft to rotate, which in turn causes the eccentric wheel 14 to make a circular motion. The force generated by the circular motion is transmitted to the support plate 13 through the fixed rod 16. The two ends of the support plate 13 are slidably connected to the side plate 2 by the support rod 15. It is constrained by the side plate 2 and slides back and forth, which drives the lifting reciprocating mechanism and the mold 3, which are fixedly connected to the support plate 13, to move back and forth as a whole.
[0037] S2. When the lifting reciprocating mechanism and the mold 3 move back and forth as a whole, under the action of inertia, the spring 8 drives the slider 5 to slide left and right on the limit block 7, which drives the inner box 11 in contact with it to move left and right together. The movement of the inner box 11 causes the spring 12 to undergo elastic deformation. The spring 12 then generates a reverse elastic force. Under the action of the elastic force, the inner box 11 slides left and right in the direction allowed by the contact surface with the outer box 10, causing the large prefabricated component to loosen from the left and right sides of the inner box 11.
[0038] S3. After the large precast component is loosened, the drive motor 17 is turned off, the left and right reciprocating motion stops, and then the pushing motion begins. At the same time, the two cylinders 9 are activated, and the telescopic shafts of the cylinders 9 extend upward, pushing the connected slide 6 upward. This causes the slider 5 located in the slide 6 to generate upward thrust. The slider 5 slides up and down relative to the inner box 11. The slider 5 leaves the bottom of the inner box 11, pushing the large precast component smoothly towards the outside of the mold 3. When most of the large precast component has come out of the inner box 11, the robotic arm clamps the large precast component, then smoothly picks it up and transfers it to the designated area for subsequent use.
[0039] S4. Then, both cylinders 9 are closed simultaneously. The telescopic shafts of cylinders 9 retract downwards, and sliders 5 and slides 6 also return to their original positions, preparing for the next demolding operation. This cycle achieves efficient and stable demolding.
Claims
1. A prefabricated component rapid demolding device suitable for fabricated buildings, comprising a base, the base comprising a bottom plate (1) and two side plates (2), the bottom plate (1) and the two side plates (2) are fixedly connected, characterized in that: Two side plates (2) on the slide connection has left and right reciprocating mechanism, the left and right reciprocating mechanism above both sides are fixedly connected with a push up reciprocating mechanism, the push up reciprocating mechanism penetrates the mold (3) bottom, and its top and mold (3) bottom near the inside side are in the same plane, the both sides of the mold (3) are connected with left and right reciprocating mechanism through fixed rod one (4); The push up reciprocating mechanism includes a sliding block (5) and a sliding groove (6), the lower part of the sliding block (5) penetrates the limiting block (7), the limiting block (7) is fixedly connected with the inner side of the sliding groove (6) at both ends, the limiting block (7) on both sides of the sliding block (5) is wound with spring one (8), both ends of the spring one (8) are connected to the lower part of the sliding block (5) and the both sides of the sliding groove (6), the bottom of the sliding groove (6) is fixedly connected with the telescopic shaft of the air cylinder (9), the bottom of the air cylinder (9) is fixedly connected with the left and right reciprocating mechanism, the mold (3) includes an outer box (10) and an inner box (11), the inner box (11) is placed in the outer box (10), the bottom of the inner box (11) is movably attached to the bottom of the outer box (10), the inner side of the outer box (10) connected with the fixed rod one (4) is connected with the outer side of the opposite inner box (11) through the spring two (12), the other two sides of the outer box (10) are movably attached to the inner box (11), the upper part of the sliding block (5) is embedded in the bottom of the inner box (11), and the sliding block (5) is movably connected with the inner box (11).
2. The quick demolding device for prefabricated components for fabricated buildings according to claim 1, characterized in that: The left and right reciprocating mechanism includes a support plate (13) and an eccentric wheel (14), the both ends of the support plate (13) are slidably connected with the side plate (2) through the support rod (15), the fixed rod two (16) below the support plate (13) is fixedly connected with the double shaft of the eccentric wheel (14), the both sides of the fixed rod two (16) are fixedly connected with the support plate (13), the transmission shaft of the eccentric wheel (14) is connected with the output shaft of the driving motor (17), and the driving motor (17) is fixed on the bottom plate (1).
3. The quick demolding device for prefabricated components for fabricated buildings according to claim 1, characterized in that: The shape of the sliding block (5) is T-shaped, and the corresponding area of the inner box (11) below the T-shaped sliding block (5) and the outer box (10) is hollow.
4. The quick demolding device for prefabricated components for fabricated buildings according to claim 1, characterized in that: The shape of the limiting block (7) is a square block.
Citation Information
Patent Citations
A prefabricated building component production equipment
CN218803057U