Production mold for precast slab of composite floor slab

Abstract

The present invention discloses a production mold for precast slabs of composite floors, which relates to building construction. The key technical points of its technical solution are as follows: It includes four flexible belts, four groups of distance adjustment components and a mold table. The distance adjustment component includes two tensioning columns that adjust positions on a horizontal plane. The flexible belt is tightened by the two tensioning columns to form a concrete edge stop. The four concrete edge stops are arranged in a square shape and the ends of adjacent concrete edge stops are in tight contact. A pouring groove for accommodating concrete is formed between the four concrete edge stops and the mold table. A steel bar groove is arranged along the length direction of the flexible belt. By adjusting the positions of the tensioning columns on the horizontal plane in the present invention, the length of the concrete edge stop can be adjusted steplessly and the position can move along with the movement of the tensioning column, forming a pouring groove with arbitrarily adjustable dimensions. The steel bars can pass through the steel bar groove, enabling the mold to be universal for various projects in the case of inconsistent components.

Description

Technical Field

[0001] The present invention relates to building construction, and more particularly to a production mold for precast slabs of composite floor slabs. Background Art

[0002] Composite floor slabs are a kind of precast component with the largest proportion in building construction. They are assembled monolithic floor slabs formed by laminating precast slabs and cast-in-place reinforced concrete layers. Among them, the precast slabs are generally rectangular structures. However, due to the inability to unify the dimensions, bar-out density, and bar-out distance of the composite slab precast components of various buildings, the proportion of molds for composite slab types in each project is also very large. In the case of non-unified components, the molds of each project cannot be universal.

[0003] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a production mold for precast slabs of composite floor slabs.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A production mold for precast slabs of composite floor slabs includes four flexible belts, four groups of distance adjustment components, and a mold table. The distance adjustment component includes two tension columns that adjust positions on a horizontal plane. The flexible belt is tensioned by the two tension columns to form a concrete retaining edge. The four concrete retaining edges are arranged in a square shape, and the ends of adjacent concrete retaining edges are in tight contact. A pouring groove for containing concrete is formed between the four concrete retaining edges and the mold table. Reinforcing bar grooves are provided on the flexible belt along its length direction.

[0006] The present invention is further provided as: The distance adjustment component further includes an inner guide rail and a plurality of parallel lifting guide rails. An inner guide rail slider is slidably connected to the lifting guide rail. A plurality of the inner guide rail sliders are fixedly connected to the inner guide rail. Two tension column sliders are slidably connected to the inner guide rail. The tension column sliders are fixedly connected to the tension columns.

[0007] The present invention is further provided as: It further includes four fixing components that adjust positions on a horizontal plane. The fixing components are used to fix the two ends of one flexible belt.

[0008] The present invention is further provided as: The fixing component includes an outer guide rail and two fixing rod sliders. An outer guide rail slider is slidably connected to the lifting guide rail. A plurality of the outer guide rail sliders are fixedly connected to the outer guide rail. A fixing rod fixedly connected to one end of the flexible belt is fixedly connected to the fixing rod slider.

[0009] The present invention is further provided as: It further includes a plurality of abutting plates located between the two tension columns and with variable positions. The abutting plates are used to abut against one side of the flexible belt.

[0010] The present invention is further configured such that: a plurality of abutting plate sliders are slidably connected to the inner guide rail slider, and the abutting plates are fixedly connected to the abutting plate sliders.

[0011] The present invention is further configured such that: a positioning groove for accommodating the passing through of steel bars is formed in the center of the abutting plate.

[0012] The present invention is further configured such that: a plurality of lifting rods are fixedly connected to the lifting guide rail.

[0013] In summary, the present invention has the following beneficial effects: By adjusting the position of the tensioning column on the horizontal plane, the length of the concrete retaining edge can be adjusted steplessly and the position can move along with the movement of the tensioning column, so that the ends of the four concrete retaining edges can always abut against each other, thereby forming a pouring groove with arbitrarily adjustable dimensions. The steel bars can pass through the steel bar groove. Since the steel bar groove is arranged along the length direction of the flexible belt, steel bars of any size can be accommodated, and the steel bar density and the steel bar distance can be adjusted arbitrarily, enabling the mold to be universal for various projects in the case of inconsistent components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention;

[0015] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0016] Figure 3 is a partial structural schematic diagram of the present invention.

[0017] In the figure: 1, flexible belt; 2, formwork table; 3, tensioning column; 4, concrete retaining edge; 5, steel bar groove; 6, inner guide rail; 7, lifting guide rail; 8, inner guide rail slider; 9, tensioning column slider; 10, outer guide rail; 11, fixed rod slider; 12, outer guide rail slider; 13, fixed rod; 14, abutting plate; 15, abutting plate slider; 16, positioning groove; 17, lifting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present invention will be described in detail below with reference to the drawings and embodiments.

[0019] Embodiment:

[0020] A production mold for precast slabs of composite floor slabs, as shown in Figure 1 and Figure 2As shown in the figure, it includes four flexible belts 1, four sets of distance adjustment components, a mold table 2, and four fixing components for adjusting positions on a horizontal plane. The flexible belt 1 is made of nitrile rubber and has a thickness of 5 cm. The fixing components are used to fix both ends of a flexible belt 1. The distance adjustment component includes two tensioning columns 3 for adjusting positions on a horizontal plane. The flexible belt 1 is tightened by the two tensioning columns 3 to form a concrete edge 4. Specifically, after the fixing components fix both ends of a flexible belt 1, the tensioning columns 3 abut against the flexible belt 1 and move away from both ends of the flexible belt 1, thereby tightening the flexible belt 1. The four concrete edges 4 are arranged in a square shape and the ends of adjacent concrete edges 4 are abutted tightly. A pouring groove for accommodating concrete is formed between the four concrete edges 4 and the mold table 2. The mold table 2 and the concrete edges 4 are coated with a release agent and then concrete can be poured. A steel bar groove 5 is provided on the flexible belt 1 along its length direction. The steel bar groove 5 is formed by cutting a slit in the center of the flexible belt 1. The inner walls on both sides of the steel bar belt abut against each other in the natural state. After the fixing components fix both ends of a flexible belt 1 and keep the positions unchanged, the two tensioning columns 3 move away from both ends of the flexible belt 1, and the distance between the two tensioning columns 3 decreases, so that while the flexible belt 1 can be kept tightened, the length of the concrete edge 4 can be reduced. On the contrary, the two tensioning columns 3 move towards both ends of the flexible belt 1 and the distance between the two tensioning columns 3 increases, so that the length of the concrete edge 4 can be increased. Furthermore, by adjusting the positions of the tensioning columns 3 on a horizontal plane, the length of the concrete edge 4 can be adjusted steplessly, and the position of the concrete edge 4 can move along with the movement of the tensioning columns 3. After the length of the concrete edge 4 changes, the distance adjustment components and the fixing components can be moved synchronously in the same direction and at the same distance, so as to control the movement of the flexible belt 1 without changing its shape, so that the ends of the four concrete edges 4 can be easily abutted tightly against each other, playing a role in closing the flow of concrete, thereby forming a pouring groove with arbitrarily adjustable dimensions. Steel bars can pass through the steel bar groove 5. The steel bars push open the parts of the flexible belt 1 close to both sides of the steel bar groove 5, realizing the penetration of the steel bars through the steel bar groove 5. Since the concrete edge 4 is in a tightened state and the flexible belt 1 can be deformed, the gaps of the parts where the steel bars pass through are small. At the same time, due to the weak fluidity of the concrete, it does not affect the sealing effect of the flexible belt 1, and the burrs generated on the parts where the steel bars pass through the steel bar groove 5 can be removed by post-treatment and grinding. Since the steel bar groove 5 is provided along the length direction of the flexible belt 1, steel bars of any size can be accommodated, and the steel bar density and the steel bar distance can be adjusted arbitrarily, making the mold universal for various projects in the case of inconsistent components.

[0021] As Figure 1 and Figure 2As shown in the figure, the distance adjustment component further includes an inner guide rail 6 and two parallel hoisting guide rails 7. Two hoisting rods 17 are fixed to the hoisting guide rail 7 by bolts. The hoisting rods 17 are used for hoisting the hoisting guide rail 7. An inner guide rail slider 8 is slidably connected to the hoisting guide rail 7. A number of inner guide rail sliders 8 are fixed to the inner guide rail 6 by bolts. Two tensioning column sliders 9 are slidably connected to the inner guide rail 6. A base one is welded to the top end of the tensioning column 3. The tensioning column slider 9 and the base one are fixed by bolts. By sliding the tensioning column slider 9 on the inner guide rail 6, the distance between the two tensioning columns 3 can be changed. By sliding the inner guide rail slider 8 on the hoisting guide rail 7, the inner guide rail 6 can be moved, and then the two tensioning columns 3 can be moved synchronously, which is convenient for adjusting the distance between the tensioning column 3 and one end of the flexible belt 1, and is convenient for arbitrarily adjusting the length and position of the concrete edge 4.

[0022] As Figure 1 and Figure 2 shown in the figure, the fixing component includes an outer guide rail 10 and two fixing rod sliders 11. An outer guide rail slider 12 is slidably connected to the hoisting guide rail 7. A number of outer guide rail sliders 12 are fixed to the outer guide rail 10 by bolts. A fixing rod 13 fixed to one end of the flexible belt 1 is fixed to the fixing rod slider 11 by bolts. A through groove vertically arranged and penetrating the flexible belt 1 is formed in the fixing rod 13. A number of positioning bolts are threadedly connected to the fixing rod 13. The positioning bolts penetrate the flexible belt 1. By sliding the outer guide rail slider 12 on the hoisting guide rail 7, the position of the outer guide rail 10 and the two fixing rods 13 can be changed, and then it is convenient to adjust the positions of both ends of the flexible belt 1. By sliding the fixing rod slider 11 on the outer guide rail 10, the two fixing rods 13 can move towards each other or away from each other, which is convenient for adjusting the concrete edge 4 of different lengths. When demoulding is required, the two tensioning columns 3 move towards the fixing rod 13, and the two fixing rod sliders 11 are quickly moved, so that the two fixing rod sliders 11 move away from each other, thereby pulling both ends of the flexible belt 1, and enabling the flexible belt 1 to obtain a force for separating from the precast slab, which is convenient for the precast slab to be quickly demoulded.

[0023] Furthermore, as Figure 2 and Figure 3As shown, the composite floor prefabricated panel production mold also includes a number of position-variable abutment plates 14 located between the two tensioning columns 3. Specifically, a number of abutment plate sliders 15 are slidably connected to the inner guide rail slider 8. A base 2 is welded on the abutment plate 14, and the base 2 is fixed to the abutment plate slider 15 by bolts. The abutment plate 14 is used to resist one side of the flexible belt 1. The abutment plate 14 can share the pressure of the concrete on the flexible belt 1 when it is not solidified, thereby better maintaining the shape of the flexible belt 1, making the edge of the prefabricated panel more regular, and reducing the deformation of the flexible belt 1, protecting the flexible belt 1, and improving the service life of the mold. The abutment plate slider 15 slides on the inner guide rail slider 8, thereby driving the abutment plate 14 to move, so that the abutment plate 14 can be evenly distributed on one side of the flexible belt 1, and the effect of sharing the pressure is better.

[0024] Further, such as Figure 3 As shown, a positioning groove 16 for accommodating the passage of steel bars is provided in the center of the support plate 14. The steel bars can pass through part or all of the positioning grooves 16 on the support plate 14. The positioning grooves 16 can limit the steel bars, making the position of the steel bars more stable. When the steel bars pass through the positioning grooves 16, the support plate 14 is pressed against both sides of the reinforcement part of the flexible belt 1, which can play a sealing role to prevent part of the steel bars from leaking out from the reinforcement part. The support plate slider 15 slides on the inner guide rail slider 8, so that the positioning grooves 16 can adapt to different steel bar spacings, and multiple support plates 14 can also adapt to different reinforcement densities.

[0025] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A mold for producing prefabricated composite floor panels, characterized by: The invention comprises four flexible belts (1), four sets of distance adjustment components and a formwork platform (2), wherein the distance adjustment component comprises two tensioning columns (3) for adjusting positions on a horizontal plane, the flexible belt (1) is tightened by the two tensioning columns (3) to form a concrete rib (4), the four concrete ribs (4) are arranged in a square shape and the ends of adjacent concrete ribs (4) are pressed against each other, and a casting trough for accommodating concrete is formed between the four concrete ribs (4) and the formwork platform (2), the flexible belt (1) is provided with a steel bar groove (5) arranged along its length direction, the distance adjustment component further comprises an inner guide rail (6) and a plurality of parallel hoisting guide rails (7), the hoisting guide rail (7) is slidably connected to an inner guide rail slider (8), and the plurality of inner guide rail sliders (8) are fixedly connected to the inner guide rail (6), the inner guide rail (6) is slidably connected to two tensioning column sliders (9), and the tensioning column slider (9) is fixedly connected to the tensioning column (3).

2. The mold for producing composite floor prefabricated panels according to claim 1, characterized in that: It also includes four fixing components for adjusting positions on a horizontal plane, and the fixing components are used to fix the two ends of a flexible belt (1).

3. The mold for producing composite floor precast panels according to claim 2, characterized in that: The fixing assembly includes an outer guide rail (10) and two fixing rod sliders (11), the outer guide rail slider (12) is slidably connected to the lifting guide rail (7), a plurality of the outer guide rail sliders (12) are fixedly connected to the outer guide rail (10), and the fixing rod slider (11) is fixedly connected to a fixing rod (13) fixed to one end of the flexible belt (1).

4. The mold for producing composite floor precast panels according to claim 1, characterized in that: It also includes a plurality of abutment plates (14) located between the two tensioning columns (3) and having variable positions. The abutment plates (14) are used to abut against one side of the flexible belt (1).

5. The mold for producing composite floor prefabricated panels according to claim 4, characterized in that: A plurality of abutment slide blocks (15) are slidably connected to the inner guide rail slide block (8), and the abutment plate (14) is fixedly connected to the abutment slide blocks (15).

6. The mold for producing composite floor precast panels according to claim 4, characterized in that: A positioning groove (16) for accommodating a steel bar passing therethrough is provided in the center of the abutment plate (14).

7. The mold for producing composite floor precast panels according to claim 1, characterized in that: A plurality of lifting rods (17) are fixedly connected to the lifting guide rail (7).

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