Concrete prefabricated part prefabricating mold and method for road construction

Abstract

The invention discloses a concrete prefabricated part prefabricating mold and method for road construction, and relates to the technical field of prefabricated part machining, the concrete prefabricated part prefabricating mold comprises a main mold, a side mold and prefabricated steel bars, the side mold comprises grouting equipment, the grouting equipment is arranged on the upper surface of the side mold, and a defoaming assembly is arranged at the bottom of the grouting equipment; concrete grout can flow into the mold along the side wall of the side mold after being defoamed at the bottom of the grouting equipment; and the feeding device comprises splicing covers, a feeding piece and a vertical conveying piece, the splicing covers are fixedly installed on the side molds, the two splicing covers are close to each other and connected in a clamped mode, then the upper end of the forming cavity can be closed, and the vertical conveying piece is installed on the splicing covers. Air and gaps of components in the mold are reduced, and the finished product quality is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated component processing, and in particular to a prefabricated concrete component mold and method for road construction. Background Art

[0002] In order to improve construction efficiency in the construction industry, precast concrete parts are widely used. Precast concrete parts are concrete components that are made in advance and used for direct installation on site. Precast concrete parts are completed by casting in molds.

[0003] Generally, the molds for precast concrete are relatively large, and the amount of concrete slurry to be poured is large. During the pouring process, many bubbles are generated, which are difficult to defoam and require a lot of work. As a result, there are gaps or too many bubbles inside the formed precast concrete parts, which cause defects such as pores and rough surfaces on the surface of the components. In order to increase the strength of the precast concrete parts, it is necessary to fill the cast precast parts with steel bars. Most of the existing steel bars are fixed to each other by binding. Each intersection of the overlapping and crossed steel bars needs to be bound with steel wire. The reinforcement operation is cumbersome and inconvenient to use, and the steel bars are easily misplaced during the binding process. Summary of the invention

[0004] The technical problem of the present invention is to provide a prefabricated mold and method for precast concrete parts for road construction, so as to automatically defoam the poured concrete first and then pour it into the mold along the side wall, thereby reducing the air and gaps in the components inside the mold and ensuring the quality of the finished product.

[0005] To achieve the above object, the present invention provides the following technical solution: a prefabricated mold for concrete precast parts for road construction, comprising a main mold, two sets of side molds and prefabricated steel bars, wherein the two sets of side molds are closed and connected with the main mold to form a sealed molding cavity, and the side molds include:

[0006] A grouting device, wherein the grouting device is arranged on the upper surface of the side mold, and a defoaming component is arranged at the bottom of the grouting device, and the concrete slurry can flow into the mold along the side wall of the side mold after defoaming at the bottom of the grouting device;

[0007] The feeding equipment includes a splicing cover, a feeding piece and a vertical conveying piece. The side molds are fixedly installed with a splicing cover. After two sets of splicing covers are close to each other and clamped together, the upper end of the forming cavity can be closed. The vertical conveying piece is installed on the splicing cover. The feeding piece can move downward simultaneously with the prefabricated steel bars under the drive of the vertical conveying piece.

[0008] As a further solution of the present invention, the grouting equipment includes a material guide member, which is fixedly installed on the upper surface of the side mold. The upper end of the material guide member is a large circular grouting inlet, and the lower end is a long rectangular outlet with the edge flush with the inner wall of the side mold. The long rectangular outlet of the material guide member is rotatably installed on the side away from the side mold, and the lower end of the inclined plate can be rotated close to the inner wall of the side mold. A rotating motor is fixedly installed on the bottom of the material guide member, and the output end of the rotating motor is fixedly connected to the upper end of the inclined plate.

[0009] As a further solution of the present invention, the defoaming component includes an upper connecting plate, a cylinder and a partition. The partition is provided in multiple groups and is evenly distributed at the long rectangular outlet position. The upper connecting plate is fixedly mounted on the upper surface of the material guide member. Multiple groups of movable grooves are provided on the upper connecting plate. A toggle rod is slidably connected in the movable groove. A grinding plate is fixedly mounted on the lower end of the toggle rod. The lower surface of the grinding plate is attached to the surface of the partition. The cylinder is fixedly mounted on one side of the upper connecting plate. The free end of the cylinder is fixedly connected to the upper end of the toggle rod through a connecting block.

[0010] As a further solution of the present invention, the vertical conveying member includes a threaded block and a feeding rod, the threaded block is rotatably mounted on the upper surface of the splicing cover, the feeding rod is threadedly connected to the threaded block and the lower end extends to below the splicing cover, the lower end of the feeding rod is fixedly connected to the feeding member, and a driving motor is provided on the splicing cover, and the driving motor can drive the threaded block to rotate through a transmission gear.

[0011] As a further solution of the present invention, a plurality of clamping grooves are provided on the feeding piece, and the clamping grooves are semicircular grooves opening downward, and magnetic blocks are provided on both sides of the clamping grooves with opposite magnetism, and feeding holes are provided on the side walls at both ends of the splicing cover corresponding to the positions of the clamping grooves, and sealing blocks are clamped in the feeding holes, and a power supply is provided on the splicing cover, and the power supply can make the magnetic blocks approach each other when the magnetic blocks are energized.

[0012] As a further solution of the present invention, fixed threaded rods are fixedly installed at both ends of the main mold, side locking plates are fixedly installed on the outer walls of the side molds, internal threaded parts are rotatably installed at both ends of the side locking plates, the internal threaded parts are threadedly connected to the fixed threaded rods, and a rotating handle is clamped on the internal threaded parts.

[0013] As a further solution of the present invention, one end of the upper ends of the two groups of splicing covers that are relatively arranged are respectively fixedly installed with an embedding block and an embedding groove, the embedding block can be snapped into the embedding groove, and the side molds are slidably arranged on both sides of the main mold through a limiting rod, and the limiting rod is fixedly connected to the main mold and slidably connected to the side mold.

[0014] As a further embodiment of the present invention,

[0015] A method for prefabricating a concrete prefabricated part using a prefabricated concrete prefabricated part mold, the specific steps of which are as follows:

[0016] Step 1: Push the side molds on both sides close to the main mold to complete the mold closing to form a molding cavity;

[0017] Step 2: inject concrete slurry into the upper end of the guide material, and the concrete slurry flows into the molding cavity along the inner wall of the side mold after defoaming;

[0018] Step 3: After pouring to a certain height, remove the sealing block to open the feeding hole on one side, and fix the prefabricated steel bars to the feeding piece through the feeding hole;

[0019] Step 4: The magnetic blocks are brought close to each other to clamp and fix the precast steel bars, and the feeding piece is driven downward by the feeding rod, so that the precast steel bars are evenly spread on the concrete slurry.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, concrete slurry is injected through the upper end of the material guide member, and after the injection, the bubbles in the concrete slurry are eliminated by the defoaming component at the bottom, so as to prevent the gas and the like from entering the molding cavity along with the concrete slurry, and after defoaming, the concrete slurry slowly falls to the bottom of the molding cavity along the inner wall surface of the side mold, so as to avoid the problem that the concrete slurry is directly injected at a high speed to impact the slurry in the molding cavity, which is easy to generate more bubbles, so that the bubbles are eliminated before the concrete slurry is injected, and the generation of bubbles is reduced during the injection process, so as to reduce the defoaming difficulty and the defoaming workload in the prefabricated part manufacturing process, avoid leaving gaps or too many bubbles inside the formed concrete prefabricated part, and prevent the appearance of defects such as pores and rough surfaces on the surface of the concrete prefabricated part.

[0022] 2. In the present invention, pouring is carried out in sections. After a certain amount of concrete slurry is poured and moved, the prefabricated steel bars are evenly spread on the surface of the concrete slurry through vertical conveying parts and feeding parts, and then the concrete pouring is continued. The prefabricated steel bars are laid for multiple times cumulatively, thereby completing the filling of the steel bars in the prefabricated parts. There is no need to bundle the steel bars in advance, which reduces the workload of prefabricated part production and reduces the possibility of dislocation of the prefabricated steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the present invention from the left side viewing angle;

[0025] Figure 2 For the present invention Figure 1 A partial schematic diagram of the structure at A in the middle;

[0026] Figure 3 For the present invention Figure 1 A partial schematic diagram of the structure at B in the middle;

[0027] Figure 4 It is a schematic diagram of the structure of the present invention from the right side viewing angle;

[0028] Figure 5 This is a schematic diagram of the structure of the present invention from a top view perspective;

[0029] Figure 6 For the present invention Figure 5 A partial schematic diagram of the structure at C in the middle;

[0030] Figure 7 It is a structural cross-sectional view of the present invention;

[0031] Figure 8 For the present invention Figure 7 A partial schematic diagram of the structure at D in the middle;

[0032] Fig. 9 It is a structural schematic diagram of the feeding member of the present invention;

[0033] Fig.10 The present invention is a prefabricated flow chart of the prefabricated parts.

[0034] In the attached drawings: 1. Main mold; 2. Side mold; 3. Material guide; 4. Splicing cover; 5. Feed rod; 6. Side locking plate; 7. Toggle rod; 8. Upper connecting plate; 9. Movable groove; 10. Cylinder; 11. Embedded block; 12. Embedded groove; 13. Sealing block; 14. Threaded block; 15. Rotating handle; 16. Internal threaded part; 17. Fixed threaded rod; 18. Prefabricated steel bar; 19. Feed hole; 20. Feeding part; 21. Inclined plate; 22. Grinding plate; 23. Partition; 24. Clamping groove; 25. Magnetic block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 10The present invention provides a technical solution: a prefabricated mold for concrete precast parts for road construction, comprising a main mold 1, two sets of side molds 2 and prefabricated steel bars 18. The main mold 1 is a U-shaped part. The two sets of side molds 2 can form a closed molding cavity for pouring and molding concrete precast parts with the main mold 1 after being clamped to the main mold 1 from both sides. The side mold 2 includes:

[0037] Grouting equipment, the grouting equipment is arranged on the upper surface of the side mold 2, and a defoaming component is arranged at the bottom of the grouting equipment. After the concrete slurry is defoamed at the bottom of the grouting equipment, it can flow into the mold along the side wall of the side mold 2;

[0038] The feeding equipment includes a splicing cover 4, a feeding piece 20 and a vertical conveying piece. The side mold 2 is fixedly installed with a splicing cover 4. After the two sets of splicing covers 4 are close to each other and snapped together, the upper end of the forming cavity can be closed. The vertical conveying piece is installed on the splicing cover 4. The feeding piece 20 can move downward simultaneously with the prefabricated steel bars 18 under the drive of the vertical conveying piece.

[0039] During specific implementation, the two groups of side molds 2 move close to the main mold 1, so that the two groups of side molds 2 and the main mold 1 are combined to form a molding cavity. The molding cavity is a concrete pouring bin for the prefabricated part. Concrete slurry is injected through the upper end of the grouting equipment. After injection, the bubbles in the concrete slurry are eliminated by the defoaming component at the bottom to prevent gas and the like from entering the molding cavity with the concrete slurry. After defoaming, the concrete slurry slowly moves down along the inner wall surface of the side mold 2 into the bottom of the molding cavity, avoiding direct high-speed injection and impact of the slurry in the molding cavity during concrete slurry pouring in the traditional process, solving the problem that more bubbles are easily generated due to impact in traditional concrete slurry pouring. This solution eliminates bubbles before concrete slurry is injected, reduces the generation of bubbles during the injection process, reduces the difficulty of defoaming during the prefabricated part production process and reduces the workload of defoaming, prevents gaps or excessive bubbles from being left inside the molded concrete prefabricated part, and causes defects such as pores and rough surfaces to appear on the surface of the concrete prefabricated part. In addition, in the present embodiment, the concrete pouring is carried out in sections. After pouring the concrete slurry of appropriate thickness, the precast steel bars 18 are evenly spread on the surface of the concrete slurry through the vertical conveying member and the feeding member 20, and then the concrete pouring is continued. The precast steel bars 18 are laid for multiple times to complete the filling of the steel bars in the precast part. There is no need to bundle the steel bars in advance, which reduces the workload of precast part production and reduces the possibility of dislocation of the precast steel bars 18.

[0040] As a further scheme of the present invention, the grouting equipment includes a material guide member 3, which is fixedly installed on the upper surface of the side mold 2. The upper end of the material guide member 3 is a large circular grouting inlet, and the lower end is a long rectangular outlet with the edge flush with the inner wall of the side mold 2. The long rectangular outlet of the material guide member 3 is rotatably installed on the side away from the side mold 2, and the lower end of the inclined plate 21 can be rotated close to the inner wall of the side mold 2. A rotating motor is fixedly installed at the bottom of the material guide member 3, and the output end of the rotating motor is fixedly connected to the upper end of the inclined plate 21.

[0041] The concrete slurry is introduced through the large circular grouting inlet at the upper end of the material guide member 3 and discharged from the long rectangular outlet at the lower end of the material guide member 3. The inclination angle of the inclined plate 21 on the outlet can be adjusted by a rotating motor. The closer the lower end of the inclined plate 21 is to the side mold 2, the slurry flowing out of the long rectangular outlet can slide down the inner wall of the side mold 2 on the left and right sides of the inclined plate 21, thereby preventing the slurry from falling from a high place and reducing the generation of horizontal and vertical bubbles during the grouting process.

[0042] As a further scheme of the present invention, the defoaming component includes an upper connecting plate 8, a cylinder 10 and a partition 23. The partition 23 is provided with multiple groups and is evenly distributed at the long rectangular outlet position. The upper connecting plate 8 is fixedly installed on the upper surface of the material guide member 3. The upper connecting plate 8 is provided with multiple groups of movable grooves 9. The movable grooves 9 are slidably connected with a toggle rod 7. The lower end of the toggle rod 7 is fixedly installed with a grinding plate 22. The lower surface of the grinding plate 22 is attached to the surface of the partition 23. The cylinder 10 is fixedly installed on one side of the upper connecting plate 8. The free end of the cylinder 10 is fixedly connected to the upper end of the toggle rod 7 through a connecting block.

[0043] The concrete slurry injected into the material guide member 3 falls to the position of the partition 23 at the bottom of the material guide member 3 under the action of gravity, and the cylinder 10 drives the toggle rod 7 to move back and forth in the movable groove 9, thereby driving the grinding plate 22 to slide on the surface of the partition 23, and the bubbles in the concrete slurry at the outlet position of the material guide member 3 are eliminated through the mutual friction between the grinding plate 22 and the partition 23.

[0044] As a further solution of the present invention, the vertical conveying member includes a threaded block 14 and a feeding rod 5. The threaded block 14 is rotatably installed on the upper surface of the splicing cover 4. The feeding rod 5 is threadedly connected to the threaded block 14 and the lower end extends to the bottom of the splicing cover 4. The lower end of the feeding rod 5 is fixedly connected to the feeding member 20. A driving motor is provided on the splicing cover 4, and the driving motor can drive the threaded block 14 to rotate through a transmission gear.

[0045] The driving motor drives the threaded block 14 to rotate through the gears. The rotation of the threaded block 14 interacts with the feeding rod 5, thereby driving the feeding rod 5 to move downward. The downward movement of the feeding rod 5 drives the feeding piece 20 to move downward. The downward movement height of the feeding rod 5 is controlled by the distance sensor. The distance sensor is installed on the top of the splicing cover 4. The distance sensor measures the height between the distance sensor and the liquid level of the concrete slurry to control the rotation time of the driving motor, thereby accurately determining the downward movement height of the feeding rod 5. After the prefabricated steel bars 18 are placed, the driving motor rotates in the opposite direction to drive the feeding rod 5 to move upward.

[0046] As a further solution of the present invention, a plurality of groups of clamping grooves 24 are provided on the feeding piece 20, and the clamping grooves 24 are semicircular grooves opening downward. Magnetic blocks 25 are arranged on both sides of the clamping grooves 24, and the magnetic blocks 25 are electromagnets and the magnetic properties of the magnetic blocks 25 on both sides are opposite. The structure and setting of the electromagnets are conventionally applied and will not be elaborated on. Feeding holes 19 are arranged on the side walls at both ends of the splicing cover 4 corresponding to the positions of the clamping grooves 24, and the sealing blocks 13 are clamped in the feeding holes 19. A power supply is arranged on the splicing cover 4, and the power supply provides electrical energy to the magnetic blocks 25, so that the two magnetic blocks 25 can be brought close to each other when the power is turned on.

[0047] The prefabricated steel bar 18 is injected into the splicing cover 4 through the feeding hole 19, so that the prefabricated steel bar enters the clamping groove 24 of the feeding piece 20, and the magnetic blocks 25 in the clamping groove 24 are controlled by the circuit board to approach each other, so that the magnetic blocks 25 are clamped on both sides of the prefabricated steel bar 18, thereby fixing the prefabricated steel bar 18 in the feeding piece 20. When the prefabricated steel bar 18 approaches the surface of the concrete slurry, the magnetic block 25 is powered off, and the prefabricated steel bar 18 automatically falls and detaches from the feeding piece 20.

[0048] As a further solution of the present invention, fixed threaded rods 17 are fixedly installed at both ends of the main mold 1, and side locking plates 6 are fixedly installed on the outer wall of the side mold 2. Internal threaded parts 16 are rotatably installed at both ends of the side locking plates 6. The internal threaded parts 16 are threadedly connected to the fixed threaded rods 17, and a rotating handle 15 is clamped on the internal threaded parts 16.

[0049] The internal threaded member 16 is driven to rotate by rotating the rotating handle 15 , and the internal threaded member 16 interacts with the fixed threaded rod 17 , so that the side mold 2 and the main mold 1 fit more tightly and firmly.

[0050] As a further solution of the present invention, an embedding block 11 and an embedding groove 12 are fixedly installed on one end of the upper ends of the two groups of splicing covers 4, respectively. The embedding block 11 can be snapped into the embedding groove 12, and the side mold 2 is slidably set on both sides of the main mold 1 through a limiting rod, and the limiting rod is fixedly connected to the main mold 1 and slidably connected to the side mold 2.

[0051] A method for prefabricating a concrete prefabricated part using a prefabricated concrete prefabricated part mold, the specific steps of which are as follows:

[0052] Step 1: Push the side molds 2 on both sides close to the main mold 1 to complete the mold closing to form a molding cavity;

[0053] Step 2: inject concrete slurry into the upper end of the guide material 3, and the concrete slurry flows into the molding cavity along the inner wall of the side mold 2 after defoaming;

[0054] Step 3: After pouring to a certain height, remove the sealing block 13 to open the feeding hole 19 on one side, and fix the prefabricated steel bar 18 to the feeding piece 20 through the feeding hole 19;

[0055] Step 4: The magnetic blocks 25 are brought close to each other to clamp and fix the prefabricated steel bars 18, and the feeding member 20 is driven downward by the feeding rod 5, so that the prefabricated steel bars 18 are evenly spread on the concrete slurry.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A prefabricated mold for concrete precast parts for road construction, comprising a main mold, two sets of side molds and prefabricated steel bars, characterized in that: The two sets of side molds are closed and clamped with the main mold to form a sealed molding cavity. The side molds include: A grouting device, wherein the grouting device is arranged on the upper surface of the side mold, and a defoaming component is arranged at the bottom of the grouting device, and the concrete slurry can flow into the mold along the side wall of the side mold after defoaming at the bottom of the grouting device; The feeding equipment includes a splicing cover, a feeding piece and a vertical conveying piece. The side molds are fixedly installed with a splicing cover. After two sets of splicing covers are close to each other and clamped together, the upper end of the forming cavity can be closed. The vertical conveying piece is installed on the splicing cover. The feeding piece can move downward simultaneously with the prefabricated steel bars under the drive of the vertical conveying piece.

2. The prefabricated mold for precast concrete parts for road construction according to claim 1, characterized in that: The grouting equipment includes a material guide member, which is fixedly installed on the upper surface of the side mold. The upper end of the material guide member is a large circular grouting inlet, and the lower end is a long rectangular outlet with an edge flush with the inner wall of the side mold. The long rectangular outlet of the material guide member is rotatably installed on the side away from the side mold, and the lower end of the inclined plate can be rotated close to the inner wall of the side mold. A rotating motor is fixedly installed on the bottom of the material guide member, and the output end of the rotating motor is fixedly connected to the upper end of the inclined plate.

3. The prefabricated mold for precast concrete parts for road construction according to claim 2, characterized in that: The defoaming component includes an upper connecting plate, a cylinder and a partition. The partition is provided with multiple groups and is evenly distributed at the long rectangular outlet position. The upper connecting plate is fixedly installed on the upper surface of the material guide member. The upper connecting plate is provided with multiple groups of movable grooves. A toggle rod is slidably connected in the movable groove. A grinding plate is fixedly installed at the lower end of the toggle rod. The lower surface of the grinding plate is attached to the surface of the partition. The cylinder is fixedly installed on one side of the upper connecting plate. The free end of the cylinder is fixedly connected to the upper end of the toggle rod through a connecting block.

4. The prefabricated mold for precast concrete parts for road construction according to claim 3, characterized in that: The vertical conveying member includes a threaded block and a feeding rod. The threaded block is rotatably mounted on the upper surface of the splicing cover. The feeding rod is threadedly connected to the threaded block and the lower end extends to below the splicing cover. The lower end of the feeding rod is fixedly connected to the feeding member. A driving motor is provided on the splicing cover, and the driving motor can drive the threaded block to rotate through a transmission gear.

5. The prefabricated mold for precast concrete parts for road construction according to claim 4, characterized in that: The feeding piece is provided with a plurality of clamping grooves, each of which is a semicircular groove opening downward. Magnetic blocks are arranged on both sides of the clamping groove and the magnetic attraction on both sides is opposite. Feeding holes are arranged on the side walls at both ends of the splicing cover corresponding to the positions of the clamping grooves, and sealing blocks are clamped in the feeding holes. A power supply is arranged on the splicing cover, and the power supply can make the magnetic blocks approach each other when the magnetic blocks are energized.

6. The prefabricated mold for precast concrete parts for road construction according to claim 5, characterized in that: Both ends of the main mold are fixedly installed with fixed threaded rods, and the outer walls of the side molds are fixedly installed with side locking plates. Both ends of the side locking plates are rotatably installed with internal threaded parts, which are threadedly connected to the fixed threaded rods, and a rotating handle is clamped on the internal threaded part.

7. The prefabricated mold for precast concrete parts for road construction according to claim 6, characterized in that: An embedding block and an embedding groove are fixedly installed at one end of the upper ends of the two groups of splicing covers respectively. The embedding block can be snapped into the embedding groove. The side molds are slidably arranged on both sides of the main mold through limiting rods. The limiting rods are fixedly connected to the main mold and slidably connected to the side molds.

8. A method for prefabricating a prefabricated concrete part using the prefabricated concrete part prefabrication mold according to any one of claims 5 to 7, characterized in that: The specific steps of this method are as follows: Step 1: Push the side molds on both sides close to the main mold to complete the mold closing to form a molding cavity; Step 2: inject concrete slurry into the upper end of the guide material, and the concrete slurry flows into the molding cavity along the inner wall of the side mold after defoaming; Step 3: After pouring to a certain height, remove the sealing block to open the feeding hole on one side, and fix the prefabricated steel bars to the feeding piece through the feeding hole; Step 4: The magnetic blocks are brought close to each other to clamp and fix the precast steel bars, and the feeding piece is driven downward by the feeding rod, so that the precast steel bars are evenly spread on the concrete slurry.

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