Adjustable prefabricated part manufacturing mold

Abstract

The utility model discloses an adjustable prefabricated part manufacturing die which comprises a plurality of bottom dies arranged in parallel at intervals, a plurality of sets of screw adjusting holes symmetrically formed in the two sides of the bottom dies, and adjusting screws pre-embedded in a concrete raft foundation in parallel at intervals and matched with the screw adjusting holes in position, number and size. The bottom die comprises a plurality of bottom die steel plates which are sequentially spliced from left to right; a connecting steel plate extending outwards is arranged at the bottom of one end of the bottom die steel plate; first retention bolt holes connected with the adjacent bottom die steel plates are formed in the connecting steel plates; second retention bolt holes matched with the first retention bolt holes in position, number and size are formed in the surface of the end, away from the connecting steel plate, of the bottom die steel plate. The height and the flatness of the die can be adjusted before and after the die is installed, and the bottom die can be directly detached and replaced after being accidentally damaged; the problems that in the prior art, installation time is long, dangerousness is high, adjustment is difficult to conduct after installation, and mold arching deformation is prone to occurring in the using process can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete prefabricated component manufacturing, and more specifically relates to an adjustable prefabricated component manufacturing mold. Background Art

[0002] Prestressing technology is a key technique in civil engineering, structural engineering, and construction, primarily used to improve the performance of building materials like concrete and steel, and the overall strength, stiffness, stability, and durability of structures. This technique pre-imposes compressive stress in materials or structural components to offset or reduce the tensile stress generated by loads. This, in turn, controls or minimizes the appearance and development of cracks, enabling the structure to withstand greater external loads and extend its service life. Prestressing technology is widely used in the following key areas: Bridge engineering: Prestressing technology is particularly important in bridge construction, enabling the construction of longer spans and thinner bridge decks while maintaining the bridge's load-bearing capacity and long-term stability. Building structures: In multi-story and high-rise buildings, prestressing technology can effectively reduce beam and column size, increase interior headroom, and enhance the building's economical and aesthetic appeal. Dams and hydraulic structures: Prestressing technology enhances the seepage and crack resistance of hydraulic structures such as dams and sluice gates, ensuring their long-term safe operation. Underground structures: Prestressing in underground structures such as tunnels and subway stations can resist soil and water pressure, reducing the risk of cracking. Prestressed concrete products, such as prestressed beams, slabs, and piles, are factory-produced and installed on-site, improving construction efficiency and making them widely used in highways, railways, and construction. Specialty structures, such as stadiums and aircraft hangars, utilize prestressing technology to achieve complex designs and long, column-free spaces. Existing precast component bottom formwork construction primarily utilizes steel structures like I-beams and channels, and the bottom formwork is primarily installed by welding. This can be time-consuming and risky, making adjustments difficult after installation and prone to arching and deformation during use. Utility Model Content

[0003] In response to the above defects or improvement needs of the existing technology, the utility model provides an adjustable prefabricated component manufacturing mold and a construction method thereof. By optimizing the existing support method, the bottom mold is more convenient to install, and the height and flatness of the mold can be adjusted before and after installation. If the bottom mold is accidentally damaged, it can be directly removed and replaced; it can overcome the problems of the existing technology such as long installation time, high risk, difficulty in adjustment after installation, and easy arching and deformation of the mold during use.

[0004] In order to achieve the above-mentioned object, the utility model provides an adjustable prefabricated component production mold, comprising a plurality of bottom molds arranged in parallel and at intervals, a plurality of sets of screw adjustment holes symmetrically arranged on both sides of the bottom molds, and adjustment screws pre-buried in parallel and at intervals in a concrete raft foundation and adapted to the positions, number and sizes of the screw adjustment holes; wherein,

[0005] The bottom mold includes a plurality of bottom mold steel plates spliced ​​in sequence from left to right;

[0006] A connecting steel plate extending outwards is provided at the bottom of one end of the bottom mold steel plate;

[0007] The connecting steel plate is provided with a first retaining bolt hole connected to the adjacent bottom mold steel plate;

[0008] The bottom mold steel plate is provided with a second retaining bolt hole on one end surface away from the connecting steel plate, which is adapted to the position, number and size of the first retaining bolt hole.

[0009] Furthermore, the side surfaces of both ends of the bottom mold steel plate are symmetrically provided with reinforcement retaining holes.

[0010] Furthermore, a plurality of groups of retaining ear plates are symmetrically provided on both sides of the bottom mold steel plate; and the screw adjustment hole is provided on each of the retaining ear plates.

[0011] Furthermore, reinforcing ear plates are symmetrically provided on both end sides of the bottom mold steel plate; and the reinforcing retaining holes are provided on the reinforcing ear plates.

[0012] Furthermore, the bottom mold steel plate includes a first bottom plate and first side plates vertically arranged on both sides of the first bottom plate; the first bottom plate and the two first side plates together form a first U-shaped trough plate.

[0013] Furthermore, a plurality of groups of the retaining ear plates are arranged in parallel and at intervals along the longitudinal center axis of the first side plate; and the retaining ear plates are arranged perpendicular to the first side plate.

[0014] Furthermore, the connecting steel plate includes a second bottom plate and second side plates vertically arranged on both sides of the second bottom plate; the second bottom plate and the two second side plates together form a second U-shaped trough plate; the overall size of the second U-shaped trough plate is smaller than the overall size of the first U-shaped trough plate.

[0015] Furthermore, one end of the second bottom plate is fixed to the bottom of the first bottom plate, and the other end extends out of the first bottom plate.

[0016] Furthermore, the first retaining bolt hole is provided on the second bottom plate.

[0017] Furthermore, the second retaining bolt hole is provided on the first base plate.

[0018] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0019] The utility model discloses an adjustable prefabricated component manufacturing mold, which is characterized by arranging a plurality of bottom molds in parallel and at intervals, symmetrically setting a plurality of screw adjustment holes on both sides of the bottom molds, and pre-embedding adjustment screws that are adapted to the positions, number and sizes of the screw adjustment holes in parallel and at intervals on the concrete raft foundation; the bottom mold is formed by splicing a plurality of bottom mold steel plates connected in sequence from left to right; a connecting steel plate extending outward is provided at the bottom of one end of the bottom mold steel plate; a first fixing bolt hole connected to the adjacent bottom mold steel plate is provided on the connecting steel plate; a fixing bolt hole for connecting to the first fixing bolt is provided on the surface of the bottom mold steel plate away from the connecting steel plate The position, number and size of the positioning bolt holes are all adapted to the second retaining bolt holes; the two adjacent bottom formwork steel plates are connected and fixed by retaining bolts; the installation height of the bottom formwork steel plate on the concrete raft foundation is adjusted by adjusting the screw; by optimizing the existing bottom formwork structure and connection, the bottom formwork is more convenient to install. The utility model can adjust the mold height and flatness before and after installation, and the bottom formwork can be directly removed and replaced after accidental damage; it can overcome the problems of the existing technology such as long installation time and high risk, difficulty in adjustment after installation, and easy arching and deformation of the mold during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the bottom mold splicing of an adjustable prefabricated component manufacturing mold according to an embodiment of the present utility model;

[0021] Figure 2 This is an enlarged structural diagram of the splicing of two adjacent bottom mold steel plates of an adjustable prefabricated component manufacturing mold according to an embodiment of the present utility model;

[0022] Figure 3 This is a side structural schematic diagram of an adjustable prefabricated component manufacturing mold laid on a concrete raft foundation according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the installation structure of the connecting steel plates on the bottom mold steel plate of an adjustable prefabricated component manufacturing mold according to an embodiment of the present utility model.

[0024] In all the drawings, the same figure marks represent the same technical features, specifically: 1-bottom form, 11-bottom form steel plate, second fixing bolt hole 110-, fixing ear plate 101-, reinforcement ear plate 102-, first bottom plate 111-, first side plate 112-, 12-connecting steel plate, 121-second bottom plate, 122-second side plate, 120-first fixing bolt hole, 2-screw adjustment hole, 21-reinforcement fixing hole, 3-concrete raft foundation, 4-adjustment screw, 5-fixing bolt. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0026] like Figures 1-4 As shown, one aspect of the present invention provides an adjustable prefabricated component manufacturing mold, comprising a plurality of bottom molds 1 arranged in parallel and at intervals, a plurality of groups of screw adjustment holes 2 symmetrically arranged on both sides of the bottom mold 1, and adjustment screws 4 pre-buried in parallel and at intervals on a concrete raft foundation 3, the positions, quantity, and size of which are adapted to the screw adjustment holes 2; the bottom mold 1 comprises a plurality of bottom mold steel plates 11 spliced ​​sequentially from left to right; a connecting steel plate 12 extending outward is provided at the bottom of one end of the bottom mold steel plate 11; a first retaining bolt hole 120 connected to the adjacent bottom mold steel plate 11 is provided on the connecting steel plate 12; a second retaining bolt hole 110 is provided on the surface of the end of the bottom mold steel plate 11 away from the connecting steel plate 12, the positions, quantity, and size of which are adapted to the first retaining bolt holes 120;

[0027] Furthermore, if Figures 1-4 As shown, the sides of both ends of the bottom mold steel plate 11 are symmetrically provided with reinforcing retaining holes 21; a number of groups of retaining ear plates 101 are symmetrically provided on both sides of the bottom mold steel plate 11; the screw adjustment hole 2 is provided on each of the retaining ear plates 101; the retaining ear plates 101 are rectangular plates; the sides of both ends of the bottom mold steel plate 11 are symmetrically provided with reinforcing ear plates 102; the reinforcing retaining holes 21 are provided on the reinforcing ear plates 102, and are used to strengthen the connection stability between the two adjacent bottom mold steel plates 11.

[0028] like Figures 1-4 As shown, the bottom mold steel plate 11 includes a first bottom plate 111 and first side plates 112 vertically arranged on both sides of the first bottom plate 111; the first bottom plate 111 and the two first side plates 112 together form a first U-shaped trough plate; the first bottom plate 111 and the first side plates 112 are both rectangular plates; a plurality of groups of the retaining ear plates 101 are arranged in parallel and spaced apart along the longitudinal center axis of the first side plate 112; the retaining ear plates 101 are arranged perpendicular to the first side plates 112.

[0029] Furthermore, if Figures 1-4As shown, the connecting steel plate 12 includes a second bottom plate 121 and second side plates 122 vertically arranged on both sides of the second bottom plate 121; the second bottom plate 121 and the two second side plates 122 together form a second U-shaped trough plate; the overall size of the second U-shaped trough plate is smaller than the overall size of the first U-shaped trough plate; one end of the second bottom plate 121 is fixed to the bottom of the first bottom plate 111, and the other end extends out of the outside of the first bottom plate 111; the first retaining bolt hole 120 is provided on the second bottom plate 121; the second retaining bolt hole 110 is provided on the first bottom plate 111.

[0030] During installation, the connecting steel plate 12 on one bottom form steel plate 11 is extended into the bottom of the adjacent bottom form steel plate 11, and the fixing bolts 5 are passed through the second fixing bolt holes 110 and the first fixing bolt holes 120 to realize the connection between the two adjacent bottom form steel plates 11; repeat the above steps to complete the splicing of the bottom form 1; when laying the bottom form 1 on the concrete raft foundation 3, first level the surface of the concrete raft foundation 3, and use a level measuring instrument to measure the concrete surface so that the surface flatness error of the concrete raft foundation 3 is less than ±10mm, and lay the bottom form 1 on the concrete raft foundation 3 in parallel and at intervals according to the number of prefabricated component production lines, and connect the screw adjustment holes 2 on the bottom form 1 with the pre-buried adjustment screws 4 on the concrete raft foundation 3 one by one; adjust the adjustment screws 4 according to the position of the tensioning table and the steel strand to adjust the height of the bottom form 1; after adjustment, use a level measuring instrument to re-measure the level so that the level is less than or equal to ±3mm.

[0031] Furthermore, in a specific embodiment of the present invention, each bottom formwork 1 is 120m long, with a center-to-center distance of 0.9m. To facilitate fabrication and installation, each bottom formwork is divided into 10 bottom formwork steel plates 11, each 12m long, and constructed of 10mm steel. Two adjacent bottom formwork steel plates 11 are connected integrally via 6mm diameter retaining bolts 5. Twenty-four sets of screw adjustment holes 2 are provided at 500mm intervals on both sides of the bottom formwork 1, and two sets of reinforced retaining holes 21 are provided at the ends of each bottom formwork steel plate 11. Several 6mm screws are pre-embedded in the concrete raft foundation 3 to adjust the height and levelness of the bottom formwork 1 and to secure it during installation. The joints between the bottom forms are fully welded and polished smooth. Minor cracks are caulked with AB high-strength composite adhesive and polished smooth to prevent mold pullout during strand laying.

[0032] The utility model has been put into use in the prefabricated parts project of Jiangmen Hailong New Construction Technology Industrial Park. The project has a total of 16 production lines, including 6 120*0.4m and 10 120*0.45m, which produce rectangular beams and T-beams respectively. During the production process, the concrete foundation has settled due to excessive rainwater. The project adjusted the bottom mold height and flatness through the support method of the utility model, avoided losses, completed the production of prefabricated parts on time, and effectively improved production speed and quality.

[0033] The use of the adjustable prefabricated component production mold of the utility model allows the fixed mold to gain flexibility, reduces unnecessary losses, greatly improves the fault tolerance of prestressed engineering, and reduces labor costs and time costs. The construction of the adjustable prefabricated component production mold of the utility model changes the traditional welding fixing process and uses bolts for fixing. It can not only fix the bottom mold well, but also provide sufficient lateral support force for the vertical mold, and perfectly play the advantages of bolts, making the bottom mold more suitable for the production of prestressed prefabricated parts.

[0034] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable prefabricated component production mold, characterized by: It comprises a plurality of bottom molds (1) arranged in parallel and at intervals, a plurality of groups of screw adjustment holes (2) symmetrically arranged on both sides of the bottom molds (1), and adjustment screws (4) pre-buried in parallel and at intervals on a concrete raft foundation (3) and adapted to the position, number and size of the screw adjustment holes (2); wherein, The bottom mold (1) comprises a plurality of bottom mold steel plates (11) spliced ​​sequentially from left to right; A connecting steel plate (12) extending outward is provided at the bottom of one end of the bottom mold steel plate (11); The connecting steel plate (12) is provided with a first retaining bolt hole (120) for connecting to the adjacent bottom mold steel plate (11); A second retaining bolt hole (110) is provided on an end surface of the bottom mold steel plate (11) away from the connecting steel plate (12), and the second retaining bolt hole (110) is adapted to the first retaining bolt hole (120) in terms of position, number and size.

2. The adjustable prefabricated component production mold according to claim 1, characterized in that: The side surfaces of both ends of the bottom mold steel plate (11) are also symmetrically provided with reinforcement retaining holes (21).

3. The adjustable prefabricated component production mold according to claim 2, characterized in that: A plurality of groups of retaining lugs (101) are symmetrically provided on both sides of the bottom mold steel plate (11); and the screw adjustment hole (2) is provided on each of the retaining lugs (101).

4. The adjustable prefabricated component production mold according to claim 3, characterized in that: Reinforcement ear plates (102) are symmetrically provided on both end sides of the bottom mold steel plate (11); and the reinforcement retention holes (21) are provided on the reinforcement ear plates (102).

5. The adjustable prefabricated component production mold according to claim 4, characterized in that: The bottom mold steel plate (11) comprises a first bottom plate (111) and first side plates (112) vertically arranged on both sides of the first bottom plate (111); the first bottom plate (111) and the two first side plates (112) together form a first U-shaped groove plate.

6. The adjustable prefabricated component production mold according to claim 5, characterized in that: A plurality of groups of the retaining ear plates (101) are arranged in parallel and spaced apart along the longitudinal central axis of the first side plate (112); the retaining ear plates (101) are arranged perpendicular to the first side plate (112).

7. The adjustable prefabricated component production mold according to claim 5, characterized in that: The connecting steel plate (12) comprises a second bottom plate (121) and second side plates (122) arranged perpendicularly on both sides of the second bottom plate (121); the second bottom plate (121) and the two second side plates (122) together form a second U-shaped trough plate; the overall size of the second U-shaped trough plate is smaller than the overall size of the first U-shaped trough plate.

8. The adjustable prefabricated component production mold according to claim 7, characterized in that: One end of the second bottom plate (121) is fixed to the bottom of the first bottom plate (111), and the other end extends out of the first bottom plate (111).

9. The adjustable prefabricated component production mold according to claim 7, characterized in that: The first retaining bolt hole (120) is provided on the second bottom plate (121).

10. The adjustable prefabricated component production mold according to claim 7, characterized in that: The second retaining bolt hole (110) is provided on the first bottom plate (111).

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