A production mold for concrete precast nut blocks

Abstract

The present invention relates to the technical field of nut block prefabrication, and discloses a production mold for concrete precast nut blocks, including: a trolley, on the upper surface of which a bracket is fixed; a moving component, which is arranged on the bracket, the moving component includes an electric push rod, the outer wall of the electric push rod is fixed on the bracket, the driving end of the electric push rod is fixed with a first connecting block, the outer wall of the first connecting block is fixed with a plurality of fixing frames, the bottom ends of the fixing frames are all fixed with top plates, and the top ends of the top plates are all penetrated by feed pipes; a scraping component, which is arranged below the top plate, the scraping component includes a fixing plate, and the upper surface of the fixing plate is fixed on the lower surface of the top plate. Through the cooperation between the scraping component and the vibrating component, while vibrating the poured raw materials to remove air, a scraping treatment is carried out, effectively improving the compactness and forming flatness of the concrete.

Description

Technical Field

[0001] The present invention relates to the technical field of nut block prefabrication, and particularly to a production mold for concrete precast nut blocks. Background Art

[0002] The bottom-sealed nut block is a hexagonal cement block in the shape of a nut, which is a precast member used in dam facings, hydraulic structures or prefabricated foundation connections. It has certain geometric structure requirements and strength standards, and is usually formed centrally using a mold. In actual projects, the quantity of such components is large, the shape is fixed, and the precision requirements are high, which puts forward higher requirements for the stability of the forming process and the efficiency of the mold.

[0003] Currently, during the production process of nut blocks, raw material vibration and surface leveling are often two separate processes. Workers need to rely on experience to judge the time points, which easily leads to insufficient vibration or untimely scraping. As a result, air is easily trapped inside the concrete, and the surface is not flat enough, affecting the subsequent laying and the overall structural quality. Some molds even do not have corresponding auxiliary devices at all and rely entirely on manual labor.

[0004] In terms of bottom plate adjustment, many mold structures are fixed. To adjust the thickness, only the mold body can be replaced, which is inefficient. Moreover, after the concrete begins to set, the bonding force increases, and the traditional mold is prone to jamming the bottom plate during disassembly. Not only is the demolding troublesome, but sometimes it also damages the edges of the product. Regarding the problem of air residue, even if the surface is vibrated, it is still difficult to exhaust the air at the bottom. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a production mold for concrete precast nut blocks, which solves the problems of uneven surface and many internal air bubbles in the concrete after pouring and unstable finished product quality in the prior art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A production mold for concrete precast nut blocks, comprising: a trolley, on the upper surface of which a bracket is fixed; a moving component, which is arranged on the bracket, the moving component includes an electric push rod, the outer wall of the electric push rod is fixed on the bracket, the driving end of the electric push rod is fixed with a first connecting block, the outer wall of the first connecting block is fixed with a plurality of fixing frames, the bottom ends of the fixing frames are all fixed with top plates, and feeding pipes penetrate through the tops of the top plates; a scraping component, which is arranged below the top plate, the scraping component includes a fixing plate, the upper surface of the fixing plate is fixed on the lower surface of the top plate, the outer wall of the fixing plate is fixed with a toothed ring, one end of a symmetrically arranged left and right connecting frame is slidably connected to the inner wall of the toothed ring, the other end of the connecting frame is fixed with a scraper, the lower surface of the connecting frame is fixed with a first driving motor, and the driving end of the first driving motor is fixed with a gear, and the gear is arranged inside the connecting frame and meshes with the toothed ring; a vibrating component, which is arranged on the connecting frame and is used for vibrating the concrete; a forming component, which is arranged on the trolley and is used for assisting the forming of the concrete; an auxiliary component, which is arranged inside the forming component and is used for assisting the pouring and demoulding of the concrete; a water spraying component, which is arranged on the trolley and is used for spraying water to cool the solidified concrete.

[0007] Preferably, the vibrating component includes a second connecting block, the outer wall of the second connecting block is fixed on the outer walls of the remote connecting frames, and the vibrating component and the scraping component are respectively arranged on the left and right connecting frames.

[0008] Preferably, the outer wall of the second connecting block is fixed with a second driving motor, the driving end of the second driving motor is fixed with a hinged block, and the top end of the hinged block rotates inside the second connecting block.

[0009] Preferably, the lower surface of the hinged block is fixed with a vibrating rod, and the outer wall of the hinged block is fixed with a first vibration motor.

[0010] Preferably, the forming component includes a plurality of support plates, and the lower surfaces of the support plates are fixed on the upper surface of the trolley.

[0011] Preferably, the upper surfaces of the support plates are all fixed with a mold body, the outer wall of the mold body is arranged directly below the top plate, and limiting blocks are fixed inside the mold body.

[0012] Preferably, the auxiliary component includes a bottom plate and a hydraulic rod, the bottom end of the hydraulic rod is fixed on the inner bottom of the mold body, the driving end of the hydraulic rod is fixed on the lower surface of the bottom plate, the outer wall of the bottom plate slides inside the mold body, the inner wall of the bottom plate slides on the outer wall of the limiting block, the lower surface of the bottom plate is fixed with a first support block, and a second vibration motor is fixed inside the first support block.

[0013] Preferably, a plurality of symmetrically arranged supporting blocks II are fixed to the lower surface of the bottom plate. A driving motor III is fixed to the outer wall of the supporting block II. A rotating rod is fixed to the driving end of the driving motor III. A plurality of cams are fixed to the outer wall of the rotating rod. A supporting block III is fixed to the lower surface of the bottom plate. A bearing is fixed inside the supporting block III. The inner part of the bearing is fixed to the end of the rotating rod.

[0014] Preferably, the water spraying assembly includes a water tank. The lower surface of the water tank is fixed to the upper surface of the trolley. A water inlet pipe penetrates through the top end of the water tank.

[0015] Preferably, a water pump is fixed to the upper surface of the water tank. A water suction pipe is fixed to the input end of the water pump. The end of the water suction pipe penetrates inside the water tank. A drain pipe is fixed to the output end of the water pump. A plurality of shunt pipes are fixed to the end of the drain pipe. The outer walls of the shunt pipes are arranged above the die body. A plurality of nozzles are fixed to the outside of the shunt pipes. The outer walls of the nozzles are arranged above the die body.

[0016] The present invention provides a production mold for concrete precast nut blocks, having the following beneficial effects:

[0017] 1. Through the cooperation between the scraping component and the vibrating component, the present invention achieves vibrating the poured raw materials to remove air while performing scraping treatment, effectively improving the compactness and forming flatness of the concrete, and solving the problems of uneven surface and many internal air bubbles and unstable finished product quality in the prior art after concrete pouring.

[0018] 2. Through the cooperation between the forming component and the auxiliary component, the design of the hydraulic rod pushing the bottom plate inside the mold to move is convenient for adjusting the position of the bottom plate to adjust the thickness of the poured nut block and is also convenient for demolding. The auxiliary component vibrates the bottom plate while pouring concrete to further remove air inside the raw materials, thereby improving the overall quality of the precast nut block, solving the problems of difficult demolding, non-adjustable thickness, and many pores in the finished product in the prior mold structure, and significantly improving the consistency and compactness of the finished product.

[0019] 3. Through the cooperation between the internal structures of the water spraying assembly, the present invention achieves spraying water on the solidified concrete, accelerating the concrete forming while assisting in cooling the concrete, and performing dust reduction treatment on the surrounding of the device, solving the problems of cracking and uneven curing caused by temperature rise during the traditional concrete forming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional view of the present invention;

[0021] Figure 2 is a schematic structural view of the support part of the present invention;

[0022] Figure 3 Schematic diagram of the top plate part of the present invention;

[0023] Figure 4 Schematic diagram of the scraper part of the present invention;

[0024] Figure 5 Schematic diagram of the vibrating rod part of the present invention;

[0025] Figure 6 Schematic diagram of the water tank part of the present invention;

[0026] Figure 7 Schematic diagram of the mold part of the present invention;

[0027] Figure 8 Schematic diagram of the internal structure of the mold of the present invention;

[0028] Figure 9 Schematic diagram of the vibrating assembly of the present invention.

[0029] Among them, 1, trolley; 2, bracket; 3, moving assembly; 301, electric push rod; 302, connecting block one; 303, fixed frame; 304, top plate; 305, feed pipe; 4, leveling assembly; 401, fixing plate; 402, toothed ring; 403, connecting frame; 404, driving motor one; 405, gear; 406, scraper; 5, vibrating assembly; 501, connecting block two; 502, driving motor two; 503, hinge block; 504, vibrating rod; 505, vibrating motor one; 6, forming assembly; 601, support plate; 602, mold body; 603, limiting block; 7, auxiliary assembly; 701, bottom plate; 702, hydraulic rod; 703, support block one; 704, vibrating motor two; 705, support block two; 706, driving motor three; 707, rotating rod; 708, cam; 709, support block three; 710, bearing; 8, water spraying assembly; 801, water tank; 802, water inlet pipe; 803, water pump; 804, water extraction pipe; 805, drain pipe; 806, shunt pipe; 807, nozzle. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to the attached Figure 1 - attached Figure 5, an embodiment of the present invention provides a production mold for concrete precast nut blocks, comprising: a trolley 1, on the upper surface of which a bracket 2 is fixed; a moving component 3, which is arranged on the bracket 2, the moving component 3 includes an electric push rod 301, the outer wall of the electric push rod 301 is fixed on the bracket 2, the driving end of the electric push rod 301 is fixed with a connecting block 302, the outer wall of the connecting block 302 is fixed with a plurality of fixing frames 303, the bottom ends of the fixing frames 303 are all fixed with top plates 304, and feeding pipes 305 penetrate through the top ends of the top plates 304; a leveling component 4, which is arranged below the top plate 304, the leveling component 4 includes a fixing plate 401, the upper surface of the fixing plate 401 is fixed on the lower surface of the top plate 304, the outer wall of the fixing plate 401 is fixed with a toothed ring 402, one end of a left and right symmetric connecting frame 403 is slidably connected to the inner wall of the toothed ring 402, the other end of the connecting frame 403 is fixed with a scraper 406, the lower surface of the connecting frame 403 is fixed with a driving motor 404, and the driving end of the driving motor 404 is fixed with a gear 405, and the gear 405 is arranged inside the connecting frame 403 and meshes with the toothed ring 402; a vibrating component 5, which is arranged on the connecting frame 403 and is used for vibrating the concrete; a forming component 6, which is arranged on the trolley 1 and is used for assisting the forming of the concrete; an auxiliary component 7, which is arranged inside the forming component 6 and is used for assisting the pouring and demolding of the concrete; a water spraying component 8, which is arranged on the trolley 1 and is used for spraying water to cool the solidified concrete. The vibrating component 5 includes a connecting block 501, the outer wall of the connecting block 501 is fixed on the outer walls of the connecting frames 403 far away from each other. The vibrating component 5 and the leveling component 4 are respectively arranged on the left and right connecting frames 403. The outer wall of the connecting block 501 is fixed with a driving motor 502, the driving end of the driving motor 502 is fixed with a hinge block 503, the top end of the hinge block 503 rotates inside the connecting block 501, the lower surface of the hinge block 503 is fixed with a vibrating rod 504, and the outer wall of the hinge block 503 is fixed with a vibration motor 505.

[0032] Specifically, the electric push rod 301 drives the connecting block 302 and the fixing frame 303 and the top plate 304 thereon to achieve precise control of the multi-point feeding pipe 305, so as to synchronously carry out concrete pouring at different die stations and avoid uneven strength caused by pouring time difference; the leveling assembly 4 forms a transmission mechanism through the engagement of the toothed ring 402 on the fixing plate 401 and the gear 405 driven by the first driving motor 404, so that the connecting frame 403 drives the scraper 406 to perform continuous, constant-speed and adjustable surface leveling operations, which can significantly improve the consistency and flatness of the forming surface and avoid the problems of low efficiency and large deviation caused by traditional manual leveling; the vibrating assembly 5 is supported by the connecting block 501 to drive the second driving motor 502, and the motor drives the vibrating rod 504 to swing in multiple directions through the hinge block 503, and under the continuous drive of the first vibrating motor 505, the vibrating rod 504 generates high-frequency vibration, effectively promoting the floating of air bubbles inside the concrete and the uniform distribution of the slurry, thereby enhancing the structural density and early strength of the nut block, improving the quality stability and durability of the precast component. After the vibrating is completed, the second driving motor 502 drives the hinge block 503 to rotate with the vibrating rod 504 to fit with the top plate 304. The overall die realizes integrated driving, vibration and leveling control, reducing the dependence on manual labor. The two assemblies are linked by a motor and the toothed ring 402, which not only ensures the accuracy of surface leveling, but also optimizes the rhythm and intensity of vibration. Since the high-frequency vibration of the vibrating rod 504 and the leveling effect of the scraper 406 are carried out at the same time, their synergistic effect can produce a significant double effect during the concrete forming process: on the one hand, the leveling assembly 4 forms a uniform flat surface on the concrete surface, avoiding the deviation problem caused by manual leveling; on the other hand, the vibrating assembly 5 promotes the discharge of air bubbles inside the concrete and the uniform distribution of the slurry through vibration, thereby enhancing the structural density and strength of the concrete.

[0033] Please refer to the attached Figure 4 - attached Figure 9, the forming assembly 6 includes a plurality of support plates 601. The lower surfaces of the support plates 601 are fixed to the upper surface of the trolley 1, and the upper surfaces of the support plates 601 are all fixed with die bodies 602. The outer walls of the die bodies 602 are arranged directly below the top plate 304. Limit blocks 603 are fixed inside the die bodies 602. The auxiliary assembly 7 includes a bottom plate 701 and a hydraulic rod 702. The bottom end of the hydraulic rod 702 is fixed to the inner bottom of the die body 602, and the driving end of the hydraulic rod 702 is fixed to the lower surface of the bottom plate 701. The outer wall of the bottom plate 701 slides inside the die body 602, and the inner wall of the bottom plate 701 slides on the outer wall of the limit block 603. A first support block 703 is fixed to the lower surface of the bottom plate 701. A second vibration motor 704 is fixed inside the first support block 703. A plurality of symmetrically arranged second support blocks 705 are fixed to the lower surface of the bottom plate 701. A third driving motor 706 is fixed to the outer wall of the second support block 705. A rotating rod 707 is fixed to the driving end of the third driving motor 706. A plurality of cams 708 are fixed to the outer wall of the rotating rod 707. A third support block 709 is fixed to the lower surface of the bottom plate 701. A bearing 710 is fixed inside the third support block 709, and the inner part of the bearing 710 is fixed to the end of the rotating rod 707. The water spraying assembly 8 includes a water tank 801. The lower surface of the water tank 801 is fixed to the upper surface of the trolley 1. A water inlet pipe 802 penetrates through the top end of the water tank 801. A water pump 803 is fixed to the upper surface of the water tank 801. A water suction pipe 804 is fixed to the input end of the water pump 803, and the end of the water suction pipe 804 penetrates inside the water tank 801. A drain pipe 805 is fixed to the output end of the water pump 803. A plurality of shunt pipes 806 are fixed to the end of the drain pipe 805. The outer walls of the shunt pipes 806 are all arranged above the die body 602. A plurality of nozzles 807 are fixed to the outside of the shunt pipes 806. The outer walls of the nozzles 807 are all arranged above the die body 602.

[0034] Specifically, a limit block 603 is provided inside the mold body 602 to precisely control the concrete pouring thickness, ensure the consistent height of the finished nut blocks, and the bottom plate 701 in the auxiliary component 7 realizes vertical lifting control under the action of the hydraulic rod 702, facilitating the adjustment of the internal space of the mold and providing an effective demolding force after molding, improving the demolding efficiency and avoiding damage to the concrete edges. A second vibration motor 704 is provided on the bottom plate 701 to provide high-frequency vibration in the vertical direction before the concrete initial setting, effectively promoting the rearrangement of concrete particles and slurry filling, further improving the compactness and compressive properties of the product. The second support block 705, the third drive motor 706, the rotating rod 707, and multiple cams 708 form a mechanical vibration mechanism. Under the rolling interference of the cams 708, the bottom plate 701 generates periodic micro-amplitude vibrations, enhancing the effect of discharging internal bubbles in the concrete and forming a local disturbance area, improving the fluidity of the raw materials and the forming adaptability. The third support block 709 and the bearing 710 cooperate to improve the stability and service life of the vibration components, preventing the swing deviation during vibration from affecting the mold accuracy; the water spraying component 8 stores and supplies the cooling water source through the water tank 801. Driven by the water pump 803, the water flow is stably conveyed to the drain pipe 805 and the shunt pipe 806 and sprayed through the nozzles 807 above the mold body 602 to form a uniform water mist layer. It can not only effectively reduce the concrete surface temperature to inhibit crack generation, but also form a dust reduction barrier in the production environment, reducing the health hazards and product pollution problems caused by dust flying. At the same time, it ensures the uniformity of the hydration curing of the concrete, enabling the early strength development of the precast components to be more sufficient.

[0035] Working principle: The trolley 1 supports the entire mold system during operation. The bracket 2 is fixed on the upper surface of the trolley 1 to provide support for subsequent operations. The moving component 3 drives the connecting block 1-302 to move through the electric push rod 301, and then drives the top plate 304 on multiple fixing frames 303 to move up and down, thereby realizing the uniform pouring and filling of concrete. The feed pipe 305 on the top plate 304 injects raw materials into the mold to ensure that there are no dead corners in the concrete filling. The scraping component 4 and the vibrating component 5 work together. After the raw materials are poured, the scraping component 4 drives the connecting frame 403 through the fixing plate 401 and the gear ring 402, so that the scraper 406 levels the concrete surface. At the same time, the driving motor 1-404 in the gear ring 402 meshes with the gear 405 to drive the scraper 406 to level and scrape. Further, the air inside the concrete is discharged through the work of the vibrating component 5 to ensure that the surface of the finished product is flat and dense. The vibrating motor 1-505 drives the vibrating rod 504 to execute this process. The forming component 6 supports the mold body 602 through multiple support plates 601 and is installed on the trolley 1. The limiting block 603 in the mold body 602 ensures the accurate dimensions during the forming process. The auxiliary component 7 drives the bottom plate 701 to move up and down through the hydraulic rod 702. The bottom plate 701 is internally provided with a support block 1-703 and a vibrating motor 2-704 to realize the vibration treatment of the bottom plate 701, further removing the air bubbles inside the raw materials. The lower surface of the bottom plate 701 is connected to the driving motor 3-706 through the support block 2-705. The driving motor 3-706 drives the cam 708 to rotate through the rotating rod 707. The movement of the cam 708 promotes the vibration of the bottom plate 701, helps to uniformly remove the excess air in the concrete, and at the same time improves the density of the concrete. Although the cam 708 in the auxiliary component 7 drives the bottom plate 701 to generate a small amplitude of up and down displacement through the rotating rod 707, its motion parameters are optimized and set. The vibration frequency is lower than that of the vibrating motor 2-704, and the amplitude is extremely small. It is mainly used to generate local disturbances to promote the discharge of concrete air bubbles and will not cause displacement or disturbance damage to the overall forming surface. Secondly, this disturbance process only starts after the moving component 3 completes the pouring and pressing action, the feed pipe 305 stops feeding, and the top plate 304 remains stable, and the operation of the vibrating component 5 and the scraping component 4 has been completed before this, avoiding the possibility of interference caused by simultaneous work. The hydraulic rod 702 is responsible for driving the vertical lifting movement of the bottom plate 701 and controls the up and down movement range of the bottom plate 701 through its precise adjustment function, so as to ensure that the bottom plate 701 can accurately adjust the internal space of the mold during the forming process. The hydraulic rod 702 controls the vertical movement range of the bottom plate 701, and there is no risk of touching the upper components or crushing the uncured concrete, so it will not cause the deformation of the concrete structure or damage the forming shape.The water tank 801 of the water spraying assembly 8 provides water source for the mold through the water pump 803. The water pump 803 distributes water to multiple nozzles 807 through the drain pipe 805 and the shunt pipe 806. Water flow is sprayed through these nozzles 807 to help cool the solidified concrete, prevent cracking caused by excessive temperature, and at the same time conduct dust reduction treatment to improve the production environment, and finally ensure the stability and quality of the concrete nut block.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production mold for precast concrete nut blocks, characterized in that, Including: A trolley (1), on the upper surface of which a bracket (2) is fixed; A moving component (3) which is arranged on the bracket (2). The moving component (3) includes an electric push rod (301), the outer wall of the electric push rod (301) is fixed on the bracket (2), a connecting block one (302) is fixed at the driving end of the electric push rod (301), a plurality of fixing frames (303) are fixed on the outer wall of the connecting block one (302), bottom plates (304) are fixed at the bottom ends of the fixing frames (303), and feeding pipes (305) penetrate through the top ends of the bottom plates (304); A leveling component (4) which is arranged below the bottom plate (304). The leveling component (4) includes a fixing plate (401), the upper surface of the fixing plate (401) is fixed on the lower surface of the bottom plate (304), a toothed ring (402) is fixed on the outer wall of the fixing plate (401), one ends of left and right symmetric connecting frames (403) are slidably connected to the inner wall of the toothed ring (402), a scraper (406) is fixed at the other ends of the connecting frames (403), a driving motor one (404) is fixed on the lower surface of the connecting frames (403), a gear (405) is fixed at the driving end of the driving motor one (404), and the gear (405) is arranged inside the connecting frames (403) and meshes with the toothed ring (402); A vibrating component (5) which is arranged on the connecting frame (403) and is used for vibrating and processing the concrete; a forming component (6) which is arranged on the trolley (1) and is used for assisting the forming of the concrete; An auxiliary component (7) which is arranged inside the forming component (6) and is used for assisting the pouring and demoulding of the concrete; A water spraying component (8) which is arranged on the trolley (1) and is used for spraying water to cool the solidified concrete; The vibrating assembly (5) includes a second connecting block (501), the outer wall of the second connecting block (501) is fixed to the outer walls of the connecting frames (403) that are far away from each other, the vibrating assembly (5) and the scraping assembly (4) are respectively arranged on the connecting frames (403) on the left and right sides, a second driving motor (502) is fixed to the outer wall of the second connecting block (501), a hinge block (503) is fixed to the driving end of the second driving motor (502), the top end of the hinge block (503) rotates inside the second connecting block (501), a vibrating rod (504) is fixed to the lower surface of the hinge block (503), a first vibration motor (505) is fixed to the outer wall of the hinge block (503), the auxiliary assembly (7) includes a bottom plate (701) and a hydraulic rod (702), the bottom end of the hydraulic rod (702) is fixed to the inner bottom of the mold body (602), the driving end of the hydraulic rod (702) is fixed to the lower surface of the bottom plate (701), the outer wall of the bottom plate (701) slides inside the mold body (602), the inner wall of the bottom plate (701) slides on the outer wall of the limiting block (603), a first supporting block (703) is fixed to the lower surface of the bottom plate (701), a second vibration motor (704) is fixed inside the first supporting block (703), a plurality of symmetrically arranged second supporting blocks (705) are fixed to the lower surface of the bottom plate (701), a third driving motor (706) is fixed to the outer wall of the second supporting block (705), a rotating rod (707) is fixed to the driving end of the third driving motor (706), a plurality of cams (708) are fixed to the outer wall of the rotating rod (707), a third supporting block (709) is fixed to the lower surface of the bottom plate (701), a bearing (710) is fixed inside the third supporting block (709), and the end of the rotating rod (707) is fixed inside the bearing (710).

2. The production mold of a concrete precast nut block according to claim 1, characterized in that, The forming assembly (6) includes a plurality of support plates (601), and the lower surfaces of the support plates (601) are fixed to the upper surface of the trolley (1).

3. The production mold of a concrete precast nut block according to claim 2, characterized in that, Mold bodies (602) are fixed to the upper surfaces of the support plates (601), the outer walls of the mold bodies (602) are arranged directly below the top plate (304), and limiting blocks (603) are fixed inside the mold bodies (602).

4. The production mold of a concrete precast nut block according to claim 1, characterized in that, The water spraying assembly (8) includes a water tank (801), the lower surface of the water tank (801) is fixed to the upper surface of the trolley (1), and a water inlet pipe (802) penetrates through the top end of the water tank (801).

5. The production mold of a concrete precast nut block according to claim 4, characterized in that, A water pump (803) is fixed on the upper surface of the water tank (801). A water suction pipe (804) is fixed at the input end of the water pump (803). The end of the water suction pipe (804) penetrates into the interior of the water tank (801). A drain pipe (805) is fixed at the output end of the water pump (803). A plurality of shunt pipes (806) are fixed at the end of the drain pipe (805). The outer walls of the shunt pipes (806) are all arranged above the die body (602). A plurality of nozzles (807) are fixed on the outer sides of the shunt pipes (806). The outer walls of the nozzles (807) are all arranged above the die body (602).

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