A building concrete precast slab forming machine
By designing linkage and lifting components, the problem that existing precast concrete slab forming machines can only process fixed sizes has been solved. This enables adjustable and fixed molds and convenient demolding, improving the practicality and processing efficiency of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HEXING CONSTR TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
Existing precast concrete slab forming machines can only process precast slabs of fixed sizes, which has low practicality. Furthermore, it is difficult to remove the mold after forming, resulting in inconvenience in demolding.
The linkage component and the limiting component are used to make the clamping block move synchronously and fix the forming mold. Combined with the lifting component, the mold can be adjusted and fixed and can be easily demolded.
It enables the fixing of molding molds of different sizes, improves the practicality of the device, simplifies the mold installation and demolding process, and improves the processing efficiency of precast panels.
Smart Images

Figure CN224391484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of precast slab forming machines, specifically a precast concrete slab forming machine for buildings. Background Technology
[0002] Precast slabs are the floor slabs used in early buildings. They are the modules or panels used in engineering projects. Because they are precast concrete components produced and processed in a prefabrication yard and then transported directly to the construction site for installation, they are called precast slabs. A type of precast concrete slab forming machine is needed to produce precast slabs.
[0003] In the prior art, such as the announcement number CN221834602U, a precast concrete slab forming machine for building is proposed. This technical solution relates to the field of precast slab processing technology and discloses a precast concrete slab forming machine for building, including a base plate, and further including: electric slide rails are horizontally installed on both the front and rear sides of the top outer wall of the base plate, and sliders are slidably engaged on one side of the outer wall of each electric slide rail. The same forming mechanism is installed on the opposite side outer wall of the two sliders. A fixing frame is installed near the center of the front and rear outer walls of the base plate, and a material box is installed at the center of the top outer wall of the fixing frame. A driving mechanism is set at the center of the top outer wall of the material box, and one end of the driving mechanism is located inside the material box. The present invention starts the motor, the motor drives the screw to rotate, causing the screw sleeve to rotate, driving the sealing column to move upward, and at the same time driving the stirring rod to rotate, stirring the material to make it more uniformly mixed. After the sealing column opens the discharge pipe, the material can be discharged into the forming mold for the production of precast slabs.
[0004] However, when using the existing precast concrete slab forming machine, the forming mold needs to be clamped into the installation groove. Since the size of the installation groove cannot be adjusted, the device can only be fixed to a forming mold of a fixed size. This means that the device can only process precast concrete slabs of a fixed size, resulting in low practicality. Moreover, after the concrete is formed inside the forming mold, it is difficult for workers to remove the forming mold from the support base, making it inconvenient for workers to demold the precast slabs.
[0005] To address the aforementioned issues, this application proposes a precast concrete slab forming machine. Utility Model Content
[0006] The present invention aims to provide a precast concrete slab forming machine for building construction, which is mainly used to solve the problem that the existing precast concrete slab forming machines can only process precast concrete slabs of fixed size, resulting in low practicality of the device. Moreover, after the concrete is formed inside the forming mold, it is difficult for workers to remove the forming mold from the support base, which makes it inconvenient for workers to demold the precast slabs.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] A precast concrete slab forming machine includes a base plate, a fixed frame, a material box, and a sliding support base on the base plate. Symmetrical clamping blocks are slidably connected to the top of the support base, and symmetrical T-shaped blocks are fixedly connected to the bottom of each clamping block. A T-shaped groove matching the T-shaped block is opened on the top of the support base. A linkage component for synchronous movement of the two clamping blocks is set inside the T-shaped groove. A limiting component for fixing one of the clamping blocks is set at the bottom of the clamping block. A lifting component is set at the center of the top of the support base.
[0009] The working principle and beneficial effects of this utility model:
[0010] Working principle: When using this device, the molding die is placed on the support base. Pushing one of the clamping blocks causes the other clamping block to move synchronously under the action of the linkage component. After the two clamping blocks clamp the molding die, the clamping blocks are fixed by the limiting component, thus fixing the molding die on the support base. At this point, starting the device will allow it to operate normally. (When concrete is poured into the material box, the solenoid valve closes the discharge pipe. Then, the motor is started to drive the mixing rod to rotate and mix the material. After mixing is completed, the sealing column is positioned at the position inserted into the discharge pipe. Then, the electric slide rail is started to move it to the bottom of the material box, and then the solenoid valve controls the descent.) The material is fed at a certain speed, the motor is started, the motor drives the screw to rotate, causing the screw sleeve to rotate, which in turn drives the sealing column to move upward, and at the same time drives the stirring rod to rotate, stirring the material to make it more uniformly mixed. After the sealing column opens the discharge pipe, the material can be discharged into the molding mold to make the precast slab. After the material is discharged, the solenoid valve is closed, and the electric slide rail continues to drive the slider to move. (The part in parentheses is prior art, which is not described in detail in this application document.) During the process of the support seat moving to the right side of the fixed frame, the molding mold can be raised by the operation of the lifting component, which makes it convenient for the staff to take out the molding mold and demold the concrete precast slab.
[0011] Beneficial effects: When using this device, the two clamping blocks on the support base can move synchronously through the linkage component. After the two clamping blocks clamp the forming mold, the clamping blocks are fixed by the limiting component, thus fixing the forming mold on the support base. This not only makes it easier to fix the forming mold, but also allows for fixing forming molds of different sizes, thereby effectively improving the practicality of the device. During the movement of the support base to the right side of the fixing frame, the forming mold can be raised by the operation of the lifting component, which makes it convenient for workers to remove the forming mold and demold the precast concrete slab, which can also effectively improve the processing efficiency of the precast slab.
[0012] Preferably, the linkage component includes a first gear rotatably connected inside the T-slot. Two T-blocks inside the T-slot are each fixedly connected to a first rack on opposite sides. The first rack meshes with the first gear. Sliding one of the clamping blocks causes the corresponding first rack to slide via the T-block fixed to it. When the first rack slides, it causes the first gear meshing with it to rotate. The rotation of the first gear causes the other first rack inside the T-slot to slide. This sliding of the first rack, via the T-block fixed to it, causes the corresponding clamping block to move, thus achieving synchronous movement of the two clamping blocks. This makes the installation of the molding die more convenient.
[0013] Preferably, the limiting component includes a sliding cavity at the bottom of one of the clamping blocks, a movable block slidably connected inside the sliding cavity, multiple teeth fixedly connected to the bottom of the movable block, multiple tooth grooves matching the teeth on the top of the support base, a sliding rod fixedly connected to the top of the movable block, a clamping block extending from the upper end of the sliding rod and a pull block fixedly connected thereto, and the sliding rod and clamping block slidably connected, multiple springs fixedly connected to the top of the movable block on both sides of the sliding rod, the upper ends of the springs fixedly connected to the top of the inner wall of the sliding cavity, the molding mold is placed on the support base, the clamping block is slid towards the molding mold, the teeth are driven by the upward force of the tooth grooves to drive the movable block to slide upward, when the two clamping blocks clamp the molding mold, the movable block will be locked by the teeth and tooth grooves under the action of the springs inside the sliding cavity, thus fixing the molding mold on the support base, the pull block is pulled upward to drive the movable block to slide upward through the sliding rod, when the teeth disengage from the tooth grooves, the clamping block can be moved away from the molding mold, thus facilitating the disassembly of the molding mold.
[0014] Preferably, the lifting assembly includes a rectangular groove at the center of the top of the support base, a rectangular block slidably connected inside the rectangular groove, and sliders fixedly connected to the bottom of both sides of the rectangular block. The inner wall of the rectangular groove is provided with a sliding groove that matches the slider. The bottom of the support base is provided with a drive assembly for lifting the rectangular block. When the support base moves to the right of the fixed frame, the drive assembly can make the rectangular block move upward. When the rectangular block moves upward, it can push the forming mold upward and away from the support base, which makes it convenient for workers to remove the forming mold and demold the precast concrete slab.
[0015] Preferably, the drive assembly includes a second gear rotatably connected to the bottom of the support base, a threaded rod fixedly connected to the shaft at the top of the second gear, the upper end of the threaded rod passing through the support base and extending into the interior of the rectangular groove, and the threaded rod rotatably connected to the support base, and the threaded rod threadedly connected to the rectangular block. A second rack matching the second gear is fixedly connected to the top of the base plate on the right side of the fixed frame, and the second rack meshes with the second gear. During the movement of the support base to the right side of the fixed frame, when the second gear contacts the second rack, the support base continues to move, and the second gear will rotate under the action of the second rack. The rotation of the second gear can cause the threaded rod to rotate, and the rotation of the threaded rod can cause the rectangular block threadedly connected to it to move upward. When the support base moves in the opposite direction, the rectangular block will move downward.
[0016] Preferably, the bottom of the T-shaped block is rotatably connected to multiple ball bearings, which are distributed in a linear array at equal intervals on the T-shaped block. When the clamping block is slidable, the T-shaped block will slide inside the T-groove. The multiple ball bearings at the bottom of the T-shaped block can effectively reduce the friction between the T-shaped block and the inner wall of the T-groove, making it easier and less strenuous for the operator to slide the clamping block.
[0017] Preferably, rubber pads are fixedly connected to the opposite sides of the two clamping blocks, and anti-slip textures are provided on the rubber pads. This can effectively increase the friction between the clamping blocks and the molding mold after the two clamping blocks clamp the molding mold, thereby achieving a better fixing effect on the molding mold. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0019] Figure 2 This is a cross-sectional structural diagram of the entire utility model;
[0020] Figure 3 This is a top sectional view of the support base of this utility model.
[0021] Figure 4 This is a partially enlarged cross-sectional structural diagram of the present invention;
[0022] Figure 5 This is a schematic diagram of the overall structure of the clamping block of this utility model;
[0023] Figure 6 This utility model Figure 2 A magnified structural diagram of point A in the middle.
[0024] In the diagram: 1. Base plate; 2. Fixing frame; 3. Material box; 4. Support base; 5. Clamping block; 6. T-shaped block; 7. T-shaped groove; 8. First gear; 9. First rack; 10. Sliding cavity; 11. Moving block; 12. Tooth; 13. Tooth groove; 14. Sliding rod; 15. Pulling block; 16. Spring; 17. Rectangular groove; 18. Rectangular block; 19. Sliding block; 20. Sliding groove; 21. Threaded rod; 22. Second gear; 23. Second rack; 24. Rubber pad; 25. Ball bearing. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-6 A precast concrete slab forming machine includes a base plate 1, a fixed frame 2, a material box 3, and a sliding support base 4 on the base plate 1. Symmetrical clamping blocks 5 are slidably connected to the top of the support base 4. The two clamping blocks 5 can clamp and fix the forming mold. Rubber pads 24 are fixedly connected to opposite sides of each clamping block 5, and the rubber pads 24 have anti-slip textures. This effectively increases the friction between the clamping blocks 5 and the forming mold after clamping, thus providing a better fixing effect. Symmetrical T-shaped blocks 6 are fixedly connected to the bottom of each clamping block 5. The top of the support base 4 has T-shaped grooves 7 that match the T-shaped blocks 6, which improves the stability of the clamping blocks 5 when sliding on the support base 4. Multiple ball bearings 25 are rotatably connected to the bottom of the T-shaped blocks 6, and the ball bearings 25 are linearly arrayed and equidistantly distributed on the T-shaped blocks 6. The friction between the T-block 6 and the inner wall of the T-slot 7 is reduced, making it easier and less strenuous for workers to slide the clamping block 5. The T-slot 7 is equipped with a linkage component for the synchronous movement of the two clamping blocks 5. When the molding mold is placed on the support base 4 and one of the clamping blocks 5 is pushed, the other clamping block 5 will move synchronously under the action of the linkage component. The bottom of one of the clamping blocks 5 is equipped with a limiting component for fixing it. After the two clamping blocks 5 clamp the molding mold, the clamping block 5 is fixed by the limiting component, thus fixing the molding mold on the support base 4. At this time, the device can be started to operate normally. A lifting component is set at the center of the top of the support base 4. When the support base 4 moves to the right side of the fixing frame 2, the molding mold can be raised by the operation of the lifting component, which makes it convenient for workers to take out the molding mold and demold the precast concrete slab.
[0027] like Figure 1 and Figure 3 As shown, the linkage component includes a first gear 8 rotatably connected inside the T-slot 7. Two T-blocks 6 inside the T-slot 7 are each fixedly connected to a first rack 9 on opposite sides. The first rack 9 meshes with the first gear 8. Sliding one of the clamping blocks 5 causes the corresponding first rack 9 to slide via the T-block 6 fixed to it. When the first rack 9 slides, it causes the first gear 8 to rotate. The rotation of the first gear 8 causes the other first rack 9 inside the T-slot 7 to slide. This sliding of the first rack 9, via the T-block 6 fixed to it, causes the corresponding clamping block 5 to move, thus achieving the effect of synchronous movement of the two clamping blocks 5. This makes the installation of the molding die more convenient.
[0028] like Figure 2 , Figure 4 and Figure 6 As shown, the limiting assembly includes a sliding cavity 10 at the bottom of one of the clamping blocks 5. A movable block 11 is slidably connected inside the sliding cavity 10. Multiple teeth 12 are fixedly connected to the bottom of the movable block 11. Multiple toothed grooves 13 matching the teeth 12 are opened on the top of the support base 4. A sliding rod 14 is fixedly connected to the top of the movable block 11. The upper end of the sliding rod 14 extends out of the clamping block 5 and is fixedly connected to a pull block 15. The sliding rod 14 is slidably connected to the clamping block 5. Multiple springs 16 are fixedly connected to both sides of the top of the movable block 11 on the sliding rod 14. The upper ends of the springs 16 are fixed to the top of the inner wall of the sliding cavity 10. The mold is placed on the support base 4. The clamping block 5 is slid towards the mold. The tooth 12 is subjected to the upward force of the tooth groove 13, which can drive the moving block 11 to slide upward. After the two clamping blocks 5 clamp the mold, the moving block 11 will be engaged with the tooth 12 and the tooth groove 13 under the action of the spring 16 inside the slide cavity 10, thus fixing the mold on the support base 4. Pulling the pull block 15 upward will drive the moving block 11 to slide upward through the slide rod 14. When the tooth 12 is disengaged from the tooth groove 13, the clamping block 5 can be moved away from the mold, thus facilitating the disassembly of the mold.
[0029] like Figure 2 As shown, the lifting assembly includes a rectangular groove 17 opened at the center of the top of the support base 4. A rectangular block 18 is slidably connected inside the rectangular groove 17. Slider blocks 19 are fixedly connected to the bottom of both sides of the rectangular block 18. The inner wall of the rectangular groove 17 is provided with a sliding groove 20 that matches the slider 19. The bottom of the support base 4 is provided with a drive assembly for lifting the rectangular block 18. During the movement of the support base 4 to the right of the fixed frame 2, the drive assembly can make the rectangular block 18 move upward. When the rectangular block 18 moves upward, it can push the forming mold upward and away from the support base 4. This makes it convenient for workers to remove the forming mold and demold the precast concrete slab.
[0030] like Figure 1 and Figure 2As shown, the drive assembly includes a second gear 22 rotatably connected to the bottom of the support base 4. A threaded rod 21 is fixedly connected to the shaft at the top of the second gear 22. The upper end of the threaded rod 21 passes through the support base 4 and extends into the interior of the rectangular groove 17. The threaded rod 21 is rotatably connected to the support base 4 and threadedly connected to the rectangular block 18. A second rack 23 matching the second gear 22 is fixedly connected to the top of the base plate 1 on the right side of the fixing frame 2. The second rack 23 meshes with the second gear 22. During the movement of the support base 4 to the right side of the fixing frame 2, when the second gear 22 contacts the second rack 23, the support base 4 continues to move. The second gear 22 will rotate under the action of the second rack 23. The rotation of the second gear 22 can cause the threaded rod 21 to rotate. The rotation of the threaded rod 21 can cause the rectangular block 18 threadedly connected to it to move upward. When the support base 4 moves in the opposite direction, the rectangular block 18 will move downward.
[0031] As can be seen from the above, the specific embodiments of this utility model are as follows:
[0032] When using this device, the molding die is placed on the support base 4, and one of the clamping blocks 5 is pushed. This clamping block 5 drives the corresponding first rack 9 to slide through the T-shaped block 6 fixed to it. When the first rack 9 slides, it causes the first gear 8 meshing with it to rotate. The rotation of the first gear 8 causes the other first rack 9 inside the T-shaped groove 7 to slide. The sliding of the first rack 9 drives the corresponding clamping block 5 to move through the T-shaped block 6 fixed to it, thereby achieving the effect of synchronous movement of the two clamping blocks 5. When the clamping block 5 slides towards the molding die, the teeth 12 are subjected to the upward force of the tooth groove 13, which can drive the moving block 11 to slide upward. After the two clamping blocks 5 clamp the molding die, the moving block 11 will be engaged with the teeth 12 and the tooth groove 13 by the action of the spring 16 inside the sliding cavity 10, thus fixing the molding die on the support base 4. At this time, the device can be started to operate normally. (Pour concrete into the material box, the solenoid valve closes the discharge pipe, and then the motor is started to drive the stirring rod to rotate and stir the material. After stirring, the sealing column is positioned at the position inserted into the discharge pipe, and then the electric sliding block is started.) The rail drives it to move to the bottom of the material box, and then the discharge speed is controlled by the solenoid valve. The motor is started, and the motor drives the screw to rotate, which causes the screw sleeve to rotate, which drives the sealing column to move upward. At the same time, it drives the stirring rod to rotate, which agitates the material and makes it more uniformly mixed. After the sealing column opens the discharge pipe, the material can be discharged into the molding mold for the production of precast slabs. After the material is discharged, the solenoid valve is closed, and the electric slide rail continues to drive the slider to move. (The part in parentheses is prior art, which is not described in detail in this application.) During the movement of the support seat 4 to the right of the fixed frame 2, when the second gear 22 contacts the second rack 23, the support seat 4 continues to move. The second gear 22 will rotate under the action of the second rack 23. The rotation of the second gear 22 can cause the threaded rod 21 to rotate. The rotation of the threaded rod 21 can cause the rectangular block 18 connected to it to move upward. When the rectangular block 18 moves upward, it can push the molding mold to move upward and away from the support seat 4. This makes it easier for the workers to take out the molding mold and demold the concrete precast slab, thereby effectively improving the processing efficiency of the concrete precast slab.
[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A precast concrete slab forming machine, comprising a base plate (1), a fixing frame (2), a material box (3), and a sliding support seat (4) on the base plate (1), characterized in that, The top of the support base (4) is slidably connected to symmetrical clamping blocks (5), and the bottom of each clamping block (5) is fixedly connected to symmetrical T-shaped blocks (6). The top of the support base (4) is provided with a T-shaped groove (7) that matches the T-shaped block (6). The interior of the T-shaped groove (7) is provided with a linkage component for making the two clamping blocks (5) move synchronously. The bottom of one of the clamping blocks (5) is provided with a limiting component for fixing it. A lifting component is provided at the center of the top of the support base (4).
2. The precast concrete slab forming machine according to claim 1, characterized in that: The linkage component includes a first gear (8) rotatably connected inside the T-slot (7), and a first rack (9) fixedly connected to one side of each of the two T-blocks (6) inside the T-slot (7), and the first rack (9) meshing with the first gear (8).
3. The precast concrete slab forming machine according to claim 1, characterized in that: The limiting component includes a sliding cavity (10) at the bottom of one of the clamping blocks (5). A movable block (11) is slidably connected inside the sliding cavity (10). Multiple teeth (12) are fixedly connected to the bottom of the movable block (11). Multiple tooth grooves (13) matching the teeth (12) are opened on the top of the support base (4). A slide rod (14) is fixedly connected to the top of the movable block (11). The upper end of the slide rod (14) extends out of the clamping block (5) and is fixedly connected to a pull block (15). The slide rod (14) is slidably connected to the clamping block (5). Multiple springs (16) are fixedly connected to both sides of the top of the movable block (11) on the slide rod (14). The upper end of the springs (16) is fixedly connected to the top of the inner wall of the sliding cavity (10).
4. The precast concrete slab forming machine according to claim 1, characterized in that: The lifting assembly includes a rectangular groove (17) at the center of the top of the support base (4), a rectangular block (18) is slidably connected inside the rectangular groove (17), and sliders (19) are fixedly connected to the bottom of both sides of the rectangular block (18). The inner wall of the rectangular groove (17) is provided with a sliding groove (20) that matches the slider (19). The bottom of the support base (4) is provided with a drive assembly for lifting the rectangular block (18).
5. A precast concrete slab forming machine according to claim 4, characterized in that: The drive assembly includes a second gear (22) rotatably connected to the bottom of the support base (4), a threaded rod (21) fixedly connected to the shaft at the top of the second gear (22), the upper end of the threaded rod (21) passing through the support base (4) and extending into the interior of the rectangular groove (17), and the threaded rod (21) rotatably connected to the support base (4), and the threaded rod (21) threadedly connected to the rectangular block (18), and a second rack (23) matching the second gear (22) fixedly connected to the top of the base plate (1) on the right side of the fixing frame (2).
6. A precast concrete slab forming machine according to claim 1, characterized in that: The bottom of the T-shaped block (6) is rotatably connected to multiple balls (25), and the balls (25) are distributed in a linear array at equal intervals on the T-shaped block (6).
7. A precast concrete slab forming machine according to claim 1, characterized in that: Both clamps (5) are fixedly connected to rubber pads (24) on opposite sides, and anti-slip textures are provided on the rubber pads (24).
Citation Information
Patent Citations
CN221834602U