A precast beam-type thin plate staircase production device

Abstract

The present invention discloses a production device for precast beam-type thin-slab stairs, which includes a base, a bottom mold, an operation platform, a fixed mold, a left end mold, a right end mold, a movable mold, a tensioning tooling and a transverse cylinder. The bottom mold, the operation platform and the fixed mold are fixedly arranged on the base, the movable mold is slidably arranged on the base, and a tensioning tooling is arranged on the upper surface of the fixed mold. The left end mold and the right end mold are respectively detachably arranged on the left and right sides of the fixed mold; the movable mold includes a movable mold A, a movable mold B, a movable mold C and a vertical cylinder. The movable mold A, the movable mold B and the movable mold C are sequentially arranged on the movable mold from bottom to top. The movable mold B is movably lapped on the movable mold A through the vertical cylinder, and the movable mold C is movably arranged on the movable mold B. The movable mold of the production device for precast beam-type thin-slab stairs designed by the present invention adopts a segmented mode design. The design of the three separate movable molds facilitates mold assembly and disassembly, reduces the difficulty of producing precast beam-type thin-slab stairs, and makes mold closing and mold disassembly simpler and more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of production equipment for prefabricated stairs in construction engineering, and particularly relates to a production device for precast beam-type thin-plate stairs. Background Art

[0002] With the advancement of prefabricated buildings, the development of industrialization in the construction industry, and the implementation of the three-panel system, more and more projects are adopting precast stairs. However, due to the large unit weight of concrete, it is often difficult for on-site tower cranes to meet the lifting conditions of precast stairs. Therefore, it is currently a feasible cost-saving solution to design plate-type stairs and plate-type scissors stairs with a large number of steps as beam-type thin-plate stairs. However, the shape of beam-type thin-plate stairs is relatively complex, and it is difficult to produce high-quality beam-type thin-plate stairs using the production methods of conventional vertical or horizontal casting production devices for plate-type stairs. Therefore, it is imperative to invent a production device for precast beam-type thin-plate stairs to improve the quality of components. Summary of the Invention

[0003] In view of the above deficiencies of the prior art, the present invention invents a production device for precast beam-type thin-plate stairs.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A production device for precast beam-type thin-plate stairs includes a base, a bottom mold, an operation platform, a fixed mold, a left end mold, a right end mold, a tensioning tooling, and a moving mold. The bottom mold, the operation platform, and the fixed mold are fixedly arranged on the base. The moving mold is slidably arranged on the base. A tensioning tooling for tensioning with the upper surface of the moving mold is arranged on the upper surface of the fixed mold. The left end mold and the right end mold are detachably arranged on the left and right sides of the fixed mold respectively. The moving mold includes moving mold A, moving mold B, moving mold C, and a vertical cylinder. The moving mold is sequentially provided with moving mold A, moving mold B, and moving mold C from bottom to top. Moving mold B is movably lapped on moving mold A through the vertical cylinder, and moving mold C is movably arranged on moving mold B.

[0006] The moving mold of the production device for precast beam-type thin-plate stairs designed by the present invention adopts a segmented mode design. The design of the three separate moving molds facilitates mold assembly and disassembly, and reduces the difficulty of producing precast beam-type thin-plate stairs.

[0007] Furthermore, it further includes a horizontal cylinder. The moving mold is slidably arranged on the base through the horizontal cylinder, realizing electric control-driven mold closing and reducing the labor output of workers.

[0008] Furthermore, the bottom of the vertical cylinder is fixedly installed on moving mold A, and the top of the vertical cylinder is connected to moving mold B, realizing convenient mold closing and disassembly.

[0009] Furthermore, a stair anti-slip strip is arranged on the fixed mold.

[0010] Furthermore, a first toothed plate and a second toothed plate are provided on the moving mold A. The first toothed plate and the second toothed plate are welded to form a forming mold for the bottom surface of the beam - type staircase step, which reduces the production materials without affecting the overall structure and strength of the staircase and saves the production cost.

[0011] Furthermore, the operating platform is fixed on the base and located behind the fixed mold. With an integrated design, it has strong stability and will not shake when production personnel stand on it during the operation process.

[0012] The advantages of the present invention are as follows: 1. Demolding is convenient. The production device realizes vertical and horizontal demolding methods, reducing the adsorption force between the component and the production device, and making demolding easy; 2. Positioning is accurate. Both the moving mold B and the moving mold A are hydraulically controlled, and a limiting device is provided at the same time, with fast and accurate positioning; 3. High utilization rate. Reducing the adsorption force between the component and the production device, avoiding violent demolding and improving the utilization rate of the production device; 4. Good apparent quality of the component. When pouring and vibrating concrete, the concrete is conducive to exhausting air, and at the same time, less manual finishing is required, resulting in good apparent quality of the component; 5. Easy production control. The design of the production device conforms to the existing technology, and it is easy to observe and monitor during the production of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a perspective view of a production device for precast beam - type thin - plate staircases of the present invention;

[0014] Figure 2 is a top view of a production device for precast beam - type thin - plate staircases of the present invention;

[0015] Figure 3 is a front view of a production device for precast beam - type thin - plate staircases of the present invention;

[0016] Figure 4 is a perspective view of the moving mold A and the moving mold B in a production device for precast beam - type thin - plate staircases of the present invention.

[0017] Figure 5 is a perspective view of the fixed mold in a production device for precast beam - type thin - plate staircases of the present invention;

[0018] Figure 6 is a perspective view of the base and the bottom mold in a production device for precast beam - type thin - plate staircases of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings:

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by "left", "right", "horizontal", "vertical", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present invention.

[0021] As Figure 1-3 shown, a production device for precast beam-type thin-slab stairs includes a base 1, a bottom mold 2, an operation platform 3, a fixed mold 4, a left end mold 5, a right end mold 6, a tensioning tooling 7, a horizontal cylinder 8, and a moving mold 9. The bottom mold 2, the operation platform 3, and the fixed mold 4 are fixedly arranged on the base 1. The bottom film 2 is welded to the base 1, and the operation platform 3 is welded to the base 1 and is located behind the fixed mold 4. The moving mold 9 is slidably arranged on the base 1 through the horizontal cylinder 8. A tensioning tooling 7 for tensioning with the upper surface of the moving mold 9 is arranged on the upper surface of the fixed mold 4. The left end mold 5 and the right end mold 6 are detachably arranged on the left and right sides of the fixed mold 4 respectively. The bottom mold 2, the fixed mold 4, the left end mold 5, the right end mold 6, and the moving mold 9 constitute the production mold of the building body.

[0022] As Figure 4As shown in the figure, the moving die 9 of the present invention includes a moving die A91, a moving die B92, a moving die C93, and a vertical cylinder 94. The moving die 9 is sequentially provided with the moving die A91, the moving die B92, and the moving die C93 from bottom to top. The moving die B92 is movably lapped on the moving die A91 through the vertical cylinder 94, and the moving die C93 is movably arranged on the moving die B92. The moving die A91 is welded and composed of a first toothed plate 911, a second toothed plate 912, a vertical rod 913, a lower beam side form 914, a reinforcing rib plate 915, a horizontal rib plate 916, a left panel 917, and a right panel 918. The first toothed plate 911 and the second toothed plate 912 are welded to form a forming die for the bottom surface of the beam-type staircase step, reducing the materials for producing the building body. One end of the horizontal cylinder 8 is fixed on the lower beam side form 914, and the other end is fixed on the base 1. The horizontal cylinder 8 controls the horizontal movement of the moving die A91 and the moving die B92, making the mold closing and demolding faster. The side of the reinforcing rib plate 915 is welded on the horizontal rib plate 916 and the vertical column 913. A roller bracket 95 is welded at the lower part of the reinforcing rib plate 915. A roller 96 is arranged inside the roller bracket 95, and a limiting rod 97 is arranged on the roller bracket 95. The roller 96, the roller bracket 95, and the fixed rib plate 915 form an integral body with the moving die A91. When the horizontal cylinder 8 expands and contracts, the moving die 9 moves accordingly. The moving die B92 is welded and made of a moving die B panel 921, a horizontal rib plate 922, a limiting rib plate 923, and a positioning pin 924. The bottom of the vertical cylinder 94 is fixed on the horizontal rib plate 916 of the moving die A91, and the top of the vertical cylinder 94 is fixed to the moving die B panel 921. When the vertical cylinder 94 is filled with oil, the moving die B panel 921 is lifted, and when the oil returns, the moving die B panel 921 is lowered to separate the moving die B panel 921 from the component. The moving die C93 is welded and composed of an upper side plate, a lower side plate, a moving die C panel, a left side plate, a right side plate, a lower side plate, and a lifting lug. The moving die C93 is connected to the moving die B92 through bolts. When the component is demolded, the bolts are loosened, and the overhead crane is hung on the lifting lug to remove the moving die C93.

[0023] The left end die 5 and the right end die 6 of the present invention are both welded and formed by a vertical frame, a horizontal frame, and an end die panel. A handle is welded on the middle horizontal frame. Sealing strips are arranged on both sides of the end die panel. When the bolts are tightened, the sealing strips press the fixed die and the moving die to achieve a sealing effect. The left end die 5 and the right end die 6 are connected to the fixed die 4 through rotary buckles.

[0024] As Figure 5 shown, the fixed die is a forming die for the step surface during the production of precast beam-type thin-slab staircases, which is welded and composed of an upper panel, a lower panel, fixed die rib plates, step panels, side plates, upper step panels, lower step panels, a staircase anti-slip strip 41, and fixed die columns. Welding holes for the staircase anti-slip strip 41 are provided on the step panel and the upper step panel. The staircase anti-slip strip 41 is welded on the fixed die panel. Good welding tightness should be ensured to prevent slurry leakage during production.

[0025] As Figure 6As shown in the figure, the base 1 is made by welding base cross bars, base longitudinal bars, tracks and reinforcing bars. Three groups of tracks are welded on the base 1, and guide rails are provided on the tracks, and the guide rails can be made of grade-1 steel bars. In the middle of the base 1, several longitudinal bars and reinforcing bars are welded to the base cross bars to form an integral body, improving the stability of the base 1. The bottom form 2 is formed by welding a bottom form panel, side bars and end side bars, and the bottom form 2 is welded and fixed to the base 1. The operation platform 3 is welded by support bars, platform cross bars and a platform panel, and the platform panel is preferably made of checkered steel plate.

[0026] The operation steps of the present invention are mainly divided into mold closing and mold removal.

[0027] Mold closing: First, adjust the vertical cylinder 94 of the moving mold B92 to make the position of the moving mold B panel 921 of the moving mold B92 meet the requirements of the staircase drawing, and then lock the vertical cylinder 94. Then hoist the moving mold C93, adjust its position, and then use bolts to lock the moving mold B92 and the moving mold C93. After the moving mold A91, the moving mold B92, and the moving mold C93 are fixed into an integral body, start the horizontal cylinder 8, move the moving mold 9 to make the moving mold 9 close to the bottom form 2, check the relevant dimensions of the device, and adjust the tensioning tooling 7. After the relevant dimensions of the device meet the requirements, lock the horizontal cylinder 8 and the tensioning tooling 7. Finally, pull the handles of the left end form 5 and the right end form 6, and after tightening the bolts of the left end form 5 and the right end form 6, the production of the component can start. When producing the component, concrete is poured from the upper beam, and a hanging vibrating motor is used on the fixed mold 4 or a vibrating rod is used for vibrating the concrete.

[0028] Mold removal: First, loosen the bolts of the left end form 5 and the right end form, move the end form to the side of the fixed mold 4, then loosen the bolts of the moving mold B92 and the moving mold C93, and hoist and remove the moving mold C93. The vertical cylinder 94 returns oil, causing the moving mold B panel 921 to descend and separate from the surface of the upper beam of the component. Finally, the horizontal cylinder 8 returns oil, causing the moving mold A91 and the moving mold B92 to move outwards, separating the component from the moving mold 9, and then hoist the component.

[0029] Although the specific implementation schemes of the present invention have been described and explained in detail above, it should be pointed out that we can make various changes and modifications to the above implementation schemes, but these do not depart from the spirit of the present invention and the scope recorded in the appended claims.

Claims

1. A production device for precast beam - type thin - plate stairs, comprising a base (1), a bottom mold (2), an operation platform (3), a fixed mold (4), a left - end mold (5), a right - end mold (6), a tensioning tooling (7) and a movable mold (9). The bottom mold (2), the operation platform (3) and the fixed mold (4) are fixedly arranged on the base (1). The movable mold (9) is slidably arranged on the base (1). A tensioning tooling (7) for tensioning with the upper surface of the movable mold (9) is arranged on the upper surface of the fixed mold (4). The left - end mold (5) and the right - end mold (6) are detachably arranged on the left and right sides of the fixed mold (4) respectively; It is characterized in that The movable mold (9) includes a movable mold A (91), a movable mold B (92), a movable mold C (93) and a vertical cylinder (94). The movable mold A (91), the movable mold B (92) and the movable mold C (93) are arranged on the movable mold (9) from bottom to top in sequence. The movable mold B (92) is movably lapped on the movable mold A (91) through the vertical cylinder (94), and the movable mold C (93) is movably arranged on the movable mold B (92); It further includes a horizontal cylinder (8). The movable mold (9) is slidably arranged on the base (1) through the horizontal cylinder (8); The bottom of the vertical cylinder (94) is fixedly installed on the movable mold A (91), and the top of the vertical cylinder (94) is connected to the movable mold B (92).

2. The production device of a precast beam-type thin plate staircase according to claim 1, characterized in that, A stair anti - slip strip (41) is arranged on the fixed mold (4).

3. The precast beam-type thin plate staircase production device according to claim 1, characterized in that, A first tooth plate (911) and a second tooth plate (912) are arranged on the movable mold A (91). The first tooth plate (911) and the second tooth plate (912) are welded to form a forming mold for the bottom surface of the beam - type stair step.

4. A precast beam-type thin plate staircase production device according to claim 1, characterized in that, The operation platform (3) is fixed on the base (1) and is located behind the fixed mold (4).

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