A concrete solid brick embryo mold and a preparation process thereof

Abstract

This invention discloses a solid concrete brick mold, belonging to the field of precast concrete technology. The mold includes a base plate, on which multiple equidistant longitudinal clamping plates are installed along its width. Multiple transverse clamping plates are also equidistantly arranged along the length of the base plate, with the transverse clamping plates resting on the longitudinal clamping plates to form a brick cavity. Positioning protrusions are integrally connected to the bottom of each longitudinal clamping plate. When multiple longitudinal clamping plates are equidistantly laid on the base plate, sleepers are inserted between the longitudinal clamping plates, with the thickness of the sleepers equal to the height of the positioning protrusions. Multiple positioning slots are equidistantly formed on the longitudinal clamping plates. The transverse clamping plates, through the positioning slots, combine with the longitudinal clamping plates to form a grid-like brick mold. This invention achieves precise positioning and rapid assembly of the grid-like forming cavity through the positioning protrusions at the bottom of the longitudinal clamping plates, the equidistantly formed positioning slots, and the interlocking of the transverse clamping plates, ensuring that multiple solid concrete bricks are formed simultaneously within the same mold.

Description

Technical Field

[0001] This invention belongs to the field of precast concrete technology, specifically relating to a solid concrete brick mold and its preparation process. Background Technology

[0002] Solid concrete bricks are commonly used precast components in construction engineering. Their molding quality and production efficiency are highly dependent on the mold structure. Currently, traditional concrete brick molds are mostly simple partition overlapping type, which generally have problems such as low positioning accuracy, loose splicing, easy leakage of grout during vibration, and inconvenience in disassembly and assembly. This results in large deviations in brick blank size, many appearance defects, and low yield.

[0003] Although existing patents such as CN216372671U and CN218195889U have improved the mold structure, they still have defects such as unreliable positioning of longitudinal and transverse partitions, lack of bottom limit, and poor enclosure and sealing. Moreover, they are prone to bumping and pulling damage to the brick blanks during demolding, making it difficult to meet the requirements of high-quality and high-efficiency large-scale production.

[0004] Therefore, there is an urgent need for a concrete solid brick mold that is precise in positioning, easy to assemble and disassemble, has regular forming, and can achieve non-destructive demolding, in order to solve the problems of unstable forming quality, low production efficiency, and easy breakage of finished products in the existing technology. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] To address the problems mentioned in the background section, the present invention adopts the following technical solution.

[0007] A solid concrete brick mold includes a base plate with multiple equidistant longitudinal clamping plates installed along its width and multiple transverse clamping plates equidistantly arranged along its length. The transverse clamping plates are placed on the longitudinal clamping plates to form a brick cavity. The bottom of each longitudinal clamping plate is integrally connected to a positioning protrusion. When multiple longitudinal clamping plates are laid equidistantly on the base plate, sleepers are inserted between the longitudinal clamping plates, and the thickness of the sleepers is equal to the height of the positioning protrusion. Multiple positioning slots are equidistantly opened on the longitudinal clamping plates, and the opening positions of the multiple positioning slots are all within the length range of the positioning protrusion. The depth of the positioning slots is equal to the height of the transverse clamping plates. The transverse clamping plates are combined with the longitudinal clamping plates through the positioning slots to form a grid-like brick mold.

[0008] Preferably, a fixed side plate is provided on one side of the base plate, which is integral with the base plate, and a movable side plate is provided on the other side of the base plate. The movable side plate has the same structure as the fixed side plate. The movable side plate has an L-shaped structure, and one end of the base plate overlaps on the movable side plate.

[0009] Preferably, the fixed side plate has a first insertion hole at both ends, the movable side plate has a third insertion hole at both ends, and the bottom plate also has an end plate at both ends. The end plate has a second insertion hole at both ends that matches the first insertion hole and the third insertion hole. When the end plate is attached to the bottom plate, the first insertion hole, the second insertion hole and the third insertion hole overlap, and a pin is inserted for fixation.

[0010] Preferably, after the pin is inserted, the inner wall of the end plate is tightly fitted with the end of the transverse clamping plate, and the inner wall of the movable side plate is tightly fitted with the end of the longitudinal clamping plate, forming a sealed brick blank forming cavity, and the top surfaces of the transverse clamping plate and the longitudinal clamping plate are on the same horizontal plane after they are engaged.

[0011] Preferably, the positioning protrusion extends along the length of the longitudinal clamping plate, and the length of the positioning protrusion is less than the length of the longitudinal clamping plate. The positioning slot penetrates vertically through the top surface of the longitudinal clamping plate and the top surface of the positioning protrusion. After the transverse clamping plate is inserted into the positioning slot, its bottom surface fits against the upper surface of the base plate, and there is no gap at the joint between the two.

[0012] A process for preparing solid concrete brick blanks, using the solid concrete brick blank mold described in the above technical solution, includes the following steps: S1 mold assembly and anti-sticking treatment: The mold assembly is completed in the following order: longitudinal clamping plate laying, sleeper insertion, transverse clamping plate snapping, end plate and movable side plate pin fixing. Then, the inner wall of the mold forming cavity is coated with an anti-sticking coating. S2 concrete raw material mixing involves mixing cement, sand, gravel, and water according to the proportion to form a uniform, lump-free concrete material. S3 concrete material pouring: The mixed material is poured into the brick forming cavity of the mold until it is flush with the top surface of the plywood. S4 flat plate vibration molding uses a flat plate vibrator to vibrate against the top surface of the mold to compact the material. After compaction, the top surface material is scraped flat. S5 brick blanks are kept moist at room temperature and sealed and moisturized after vibration until they reach the demolding strength. The S6 mold is disassembled in steps for brick blank removal. The mold is disassembled in the following order: first the side end plates, then the transverse clamping plates, and finally the longitudinal clamping plates, so as to remove the brick blanks without damage.

[0013] Preferably, in step S1, before mold assembly, all mating surfaces such as the base plate, longitudinal clamping plate, and transverse clamping plate are cleaned to remove residues and burrs. The anti-sticking treatment involves uniformly applying a water-based release agent to all inner walls of the molding cavity with a coating thickness of 0.1-0.3 mm. After application, the mixture is allowed to air dry for 5-10 minutes before proceeding to the next step.

[0014] In step S2, the concrete raw materials are mixed according to the mass ratio of cement:sand:water = 1:3:0.5, and a forced mixer is used to mix them at a speed of 200-300r / min for 3-5 minutes. The slump of the mixed concrete is controlled at 30-50mm.

[0015] Preferably, in step S3, a layered casting method is adopted. The first casting is poured to 1 / 2 of the height of the forming cavity and left to stand for 1-2 minutes. The second casting is poured to be flush with the top surface of the horizontal and vertical clamping plates. During the casting process, the material is prevented from directly impacting the inner wall of the mold and causing damage to the cavity wall. In step S4, the plate vibrator vibrates at a frequency of 30-50Hz and moves at a uniform speed of 0.1-0.2m / s along the length of the mold. After compaction, the top surface is scraped flat with an aluminum alloy scraper.

[0016] Preferably, in step S5, an impermeable moisturizing film is covered on the top surface of the mold for sealing and curing. The curing environment temperature is 20-28℃, the relative humidity is ≥85%, and the curing time is 24-48h. During the curing period, the sealing of the moisturizing film is checked every 12h. In step S6, the pin is first pulled out to remove the end plate and the movable side plate. Then, the horizontal clamping plate is taken out vertically upward along the positioning slot. Finally, the sleeper is pulled out and the longitudinal clamping plate is removed by sliding. The brick blank is removed by manual lifting to avoid bumping and cracking.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In this invention, the mold achieves precise positioning and rapid assembly of the grid-shaped forming cavity through the positioning protrusions at the bottom of the longitudinal clamping plate, the positioning slots opened at equal intervals, and the interlocking of the transverse clamping plate. The clamping plates are tightly spliced ​​together without misalignment or gaps, which can ensure that multiple solid concrete brick blanks are formed synchronously in the same mold. The dimensional deviation is small, the edges and corners are complete, and the surface is flat, which greatly improves the consistency of the appearance and geometric accuracy of the brick blanks and effectively solves the problem of random assembly and inconsistent brick blank sizes in traditional molds.

[0018] (2) In this invention, the mold adopts an assembly method of first fixing the side plates and end plates, and then snapping in the longitudinal and transverse clamping plates, combined with a pin-type locking structure, making the whole structure stable and reliable. When demolding, the mold is disassembled in steps according to the order of "first removing the side and end plates, then removing the transverse clamping plates, and finally moving the longitudinal clamping plates", which can avoid damage to the brick blank caused by forced prying and impact. At the same time, the transverse clamping plates and the longitudinal clamping plates can be taken out vertically and smoothly, the brick blank is subjected to uniform force and no tensile stress, which significantly reduces the defect rate of cracking, missing corners, and edge chipping, and improves the production efficiency of finished products.

[0019] (3) In this invention, the top surface of the mold is kept at the same level, and the concrete material is vibrated at a uniform speed with a plate vibrator. This allows the concrete material to be fully filled, vented, and compacted under vibration, effectively reducing internal pores, honeycomb, and loose areas. In addition, the mold is tightly spliced ​​to prevent grout leakage and the pouring is layered and controllable. The resulting brick blank has a uniform internal structure and high density. Under standard curing conditions, the early strength development is stable, and the overall compressive strength, durability, and service life are significantly improved, meeting the requirements for the use of solid concrete bricks.

[0020] (4) The mold in this invention adopts a modular and plug-in structure design, which can be quickly assembled and disassembled without complicated tools. The positioning protrusions, sleepers, and slots not only ensure positioning accuracy but also simplify the operation process and reduce the skill requirements of the operators. At the same time, one mold can form multiple brick blanks at the same time. The curing, demolding and cleaning cycle is short, which can realize continuous and batch prefabrication production, significantly improve the production efficiency of solid concrete bricks, and reduce labor and time costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the solid concrete brick blank mold of the present invention.

[0022] Figure 2 Disassembly of the solid concrete brick blank mold of the present invention Figure 1 .

[0023] Figure 3 Disassembly of the solid concrete brick blank mold of the present invention Figure 2 .

[0024] Figure 4 Disassembly of the solid concrete brick blank mold in this invention Figure 3 .

[0025] The correspondence between the labels and component names in the attached figures is as follows: 100. Base plate; 100a. Fixed side plate; 100b. First insertion hole; 100c. Sleeper; 101. Transverse clamping plate; 102. Longitudinal clamping plate; 102a. Positioning protrusion; 102b. Positioning slot; 103. End plate; 103a. Second insertion hole; 104. Pin; 105. Movable side plate; 105a. Third insertion hole. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments. The present invention provides the following embodiments.

[0029] Example 1 See Figure 1 This embodiment discloses a solid concrete brick mold, mainly including a base plate 100, transverse clamping plates 101, longitudinal clamping plates 102, end plates 103, pins 104, movable side plates 105, and sleepers 100c. The base plate 100 serves as the load-bearing foundation of the entire mold and adopts an integral flat plate structure, which has sufficient structural strength and flatness, and can remain stable and undeformed during concrete pouring and vibration. Multiple longitudinal clamping plates 102 are arranged on the base plate 100 along its width direction. The multiple longitudinal clamping plates 102 are parallel to each other and equally spaced, forming a strip-shaped partition structure extending along the length direction of the mold. Multiple transverse clamping plates 101 are arranged on the base plate 100 along its length direction. The transverse clamping plates 101 are parallel to each other and equally spaced, and are erected above the longitudinal clamping plates 102. The transverse clamping plates 101 and the longitudinal clamping plates 102 are perpendicular to each other and intersecting, jointly dividing multiple brick blank cavities arranged in a matrix, realizing the simultaneous molding of multiple brick blanks.

[0030] See Figure 3In this embodiment, a positioning protrusion 102a is integrally formed at the bottom of the longitudinal clamping plate 102. The positioning protrusion 102a extends along the length direction of the longitudinal clamping plate 102, and the length of the positioning protrusion 102a is less than the overall length of the longitudinal clamping plate 102, so that the two ends of the longitudinal clamping plate 102 retain areas for fitting and cooperating with the side plate. A sleeper 100c is inserted between two adjacent longitudinal clamping plates 102. The thickness of the sleeper 100c is equal to the height of the positioning protrusion 102a, so that the longitudinal clamping plate 102 remains stable and does not tilt or shake after being laid. At the same time, it ensures that a stable support structure is formed between the bottom of the longitudinal clamping plate 102 and the base plate 100. Multiple positioning slots 1 are equally spaced along the height direction on the longitudinal clamping plate 102. 02b, the opening positions of all positioning slots 102b fall within the length range of the positioning protrusion 102a, so that the snap-fit ​​area of ​​the transverse clamping plate 101 corresponds to the bottom positioning structure, improving the overall structural stability. The positioning slots 102b vertically penetrate the top surface of the longitudinal clamping plate 102 and the top surface of the positioning protrusion 102a. The depth of the positioning slots 102b is consistent with the height of the transverse clamping plate 101. The transverse clamping plate 101 is snapped into the positioning slots 102b from top to bottom, realizing a stable insertion with the longitudinal clamping plate 102. After the transverse clamping plate 101 is fully snapped in, its bottom surface is tightly fitted with the upper surface of the bottom plate 100, with no gaps at the splice, which can effectively avoid grout leakage and runoff during the pouring process, ensuring that the bottom surface of the brick blank is flat and dense.

[0031] See Figure 2 and Figure 4In this embodiment, a fixed side plate 100a is integrally formed with the base plate 100 on one side. The fixed side plate 100a and the base plate 100 are integrally formed, resulting in high structural strength and stable positioning accuracy. It serves as a reference surface on one side during assembly. A movable side plate 105 is provided on the other side of the base plate 100. The movable side plate 105 has the same structure as the fixed side plate 100a, both adopting an L-shaped cross-section structure. The end of the base plate 100 can be stably attached to the movable side plate 105, enabling rapid alignment and assembly. First insertion holes 100b are respectively opened at both ends of the fixed side plate 100a, and third insertion holes 105a are correspondingly opened at both ends of the movable side plate 105. End plates 103 are respectively provided at both ends of the base plate 100 along its length, and second insertion holes 103a are correspondingly opened at both ends of the end plates 103. The second insertion holes 103a are connected to the first insertion holes 100b and the third insertion holes. The aperture and position of 105a are mutually compatible. After the end plate 103 is attached to the end of the base plate 100, the first insertion hole 100b, the second insertion hole 103a and the third insertion hole 105a are coaxially overlapped. The pin 104 is inserted into the overlapping insertion holes in sequence, so that the fixed side plate 100a, the movable side plate 105 and the end plate 103 can be quickly locked and fixed. After the pin 104 is assembled, the inner side wall of the end plate 103 is tightly attached to the end of the transverse clamping plate 101, and the inner side wall of the movable side plate 105 is tightly attached to the end of the longitudinal clamping plate 102. Together with the fixed side plate 100a, a sealed brick blank forming cavity with a grid pattern inside is formed. After the transverse clamping plate 101 and the longitudinal clamping plate 102 are snapped together, their top surfaces are kept on the same horizontal plane, which facilitates the uniform vibration operation of the subsequent plate vibrator and the top surface leveling treatment, so that the brick blank has a consistent height and a flat surface.

[0032] Example 2 This embodiment discloses a process for preparing solid concrete brick blanks, using the solid concrete brick blank mold described in Embodiment 1. Specifically, it includes mold assembly and anti-sticking treatment, concrete raw material mixing, concrete pouring, flat plate vibration molding, room temperature moisture curing of the brick blanks, step-by-step mold disassembly, and brick blank removal steps.

[0033] See Figure 1-4In this embodiment, during the mold assembly and anti-sticking process, the mold is assembled according to a preset sequence. First, the longitudinal clamping plates 102 are laid equidistantly on the base plate 100. Sleepers 100c are inserted between adjacent longitudinal clamping plates 102 to ensure uniform spacing and stable support. Then, the transverse clamping plates 101 are correspondingly inserted into the positioning slots 102b on the longitudinal clamping plates 102. Subsequently, the end plates 103 and movable side plates 105 are installed, and pins 104 are inserted to complete the overall locking and fixing. After the mold assembly is completed, the base plate 100 and the transverse clamping plates 102 are... 01. Clean all molding and mating surfaces of the longitudinal clamping plate 102, fixed side plate 100a, movable side plate 105, and end plate 103, removing any residual concrete residue, burrs, and debris to ensure a clean and smooth contact surface. Then, evenly apply a water-based release agent to all inner wall surfaces of the brick blank molding cavity, controlling the coating thickness between 0.1-0.3mm, ensuring a uniform coating without drips or missed areas. After application, allow it to air dry for 5-10 minutes to allow the release agent to form a stable release film on the mold surface before proceeding with subsequent pouring operations. In the concrete raw material mixing step, the cement:sand:water ratio is 1:3:0.5. The weighed cement and sand are put into a forced mixer and dry-mixed evenly. Then, the measured water is added and the mixing continues. The mixing speed is controlled at 200-300 r / min, and the overall mixing time is 3-5 minutes until the mixed concrete has a uniform color, no lumps, and no segregation. The slump of the mixed concrete is controlled at 30-50mm to ensure that the material has good filling and forming properties, which is convenient for pouring and vibration and is not prone to bleeding and collapse.

[0034] Furthermore, in the concrete pouring step, a layered pouring method is adopted. The concrete is first poured to 1 / 2 of the height of the brick forming cavity. After pouring, it is left to stand for 1-2 minutes to allow the material to sink and release air naturally. Then, a second pour is carried out until the top surface of the material is flush with the top surface of the transverse clamping plate 101 and the longitudinal clamping plate 102. During the pouring process, the material feeding speed and feeding position are controlled to avoid the material directly impacting the inner wall of the mold, preventing the cavity wall from being damaged or displaced by stress, and reducing material segregation and the generation of internal pores.

[0035] In the flat plate vibration molding step, a flat plate vibrator is used to vibrate and compact the concrete against the top surface of the mold. The vibration frequency is set to 30-50Hz. The flat plate vibrator moves at a constant speed of 0.1-0.2m / s along the length of the mold to ensure that the concrete material is fully filled, vented and compacted under vibration, eliminating internal honeycomb, holes and loose areas. After vibration, an aluminum alloy scraper is used to scrape the top surface of the mold back and forth to make the top surface of the brick blank flat, with clear edges and uniform size.

[0036] In the room temperature and moisture curing step of brick blanks, immediately cover the top surface of the mold with an impermeable moisture-retaining film to completely seal the molded brick blanks and carry out room temperature and moisture curing. The curing environment temperature is controlled at 20-28℃, and the relative humidity is not lower than 85%. The overall curing time is 24-48 hours, so that the brick blanks can reach the early strength required for demolding. During the curing period, check the sealing of the moisture-retaining film every 12 hours and repair any damaged or displaced areas in time to prevent the brick blanks from developing shrinkage cracks due to excessive water loss.

[0037] In the step-by-step disassembly of the mold and brick blank removal process, after the brick blank reaches the required strength, the mold is disassembled step by step in a predetermined order. First, the pins 104 on both sides are pulled out, and the end plates 103 and movable side plates 105 at both ends are removed to release the surrounding constraints. Then, the transverse clamping plate 101 is taken out vertically and smoothly along the positioning slot 102b to avoid pulling the brick blank laterally. Finally, the sleeper 100c between the longitudinal clamping plates 102 is pulled out, and the longitudinal clamping plate 102 is moved horizontally to remove it, so as to achieve complete separation of the brick blank from the mold. The brick blank removal process adopts a manual lifting and placing method to avoid collisions and impacts between the brick blanks, effectively preventing damage such as edge defects and cracks in the brick blanks, and achieving damage-free material removal.

[0038] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. A solid concrete brick mold, comprising a base plate (100), wherein a plurality of longitudinal clamping plates (102) are installed on the base plate (100) along its width direction, and a plurality of transverse clamping plates (101) are arranged at equal intervals along its length direction on the base plate, and the transverse clamping plates (101) are mounted on the longitudinal clamping plates (102) to form a cavity for the brick blank, characterized in that: The bottom of the longitudinal clamping plate (102) is integrally connected with a positioning protrusion (102a). When multiple longitudinal clamping plates (102) are laid equidistantly on the base plate (100), sleepers (100c) are inserted between the longitudinal clamping plates (102), and the thickness of the sleepers (100c) is equal to the height of the positioning protrusion (102a). Multiple positioning slots (102b) are equidistantly opened on the longitudinal clamping plate (102), and the opening positions of the multiple positioning slots (102b) are all within the length range of the positioning protrusion (102a). The depth of the positioning slots (102b) is equal to the height of the transverse clamping plate (101). The transverse clamping plate (101) is combined with the longitudinal clamping plate (102) through the positioning slots (102b) to form a grid-like brick mold.

2. The solid concrete brick blank mold according to claim 1, characterized in that: The base plate (100) has a fixed side plate (100a) integral with the base plate (100) on one side, and a movable side plate (105) is provided on the other side of the base plate (100). The structure of the movable side plate (105) is the same as that of the fixed side plate (100a). The movable side plate (105) is an L-shaped structure, and one end of the base plate (100) overlaps on the movable side plate (105).

3. The solid concrete brick blank mold according to claim 2, characterized in that: The fixed side plate (100a) has a first insertion hole (100b) at both ends, and the movable side plate (105) has a third insertion hole (105a) at both ends. The bottom plate (100) also has an end plate (103) at both ends. The end plate (103) has a second insertion hole (103a) at both ends that matches the first insertion hole (100b) and the third insertion hole (105a). When the end plate (103) is attached to the bottom plate (100), the first insertion hole (100b), the second insertion hole (103a) and the third insertion hole (105a) overlap, and a pin (104) is inserted for fixation.

4. The solid concrete brick blank mold according to claim 1, characterized in that: After the pin (104) is inserted, the inner wall of the end plate (103) is tightly fitted with the end of the transverse clamping plate (101), and the inner wall of the movable side plate (105) is tightly fitted with the end of the longitudinal clamping plate (102), forming a sealed brick blank forming cavity. After the transverse clamping plate (101) and the longitudinal clamping plate (102) are engaged, their top surfaces are on the same horizontal plane.

5. The solid concrete brick blank mold according to claim 4, characterized in that: The positioning protrusion (102a) extends along the length of the longitudinal clamping plate (102). The length of the positioning protrusion (102a) is less than the length of the longitudinal clamping plate (102). The positioning slot (102b) vertically penetrates the top surface of the longitudinal clamping plate (102) and the top surface of the positioning protrusion (102a). After the transverse clamping plate (101) is inserted into the positioning slot (102b), its bottom surface fits against the upper surface of the base plate (100), and there is no gap at the joint between the two.

6. A process for preparing solid concrete brick blanks, using a solid concrete brick blank mold as described in any one of claims 1-5, characterized in that, Includes the following steps: S1 mold assembly and anti-sticking treatment: The mold assembly is completed in the following order: longitudinal clamping plate laying, sleeper insertion, transverse clamping plate snapping, end plate and movable side plate pin fixing. Then, the inner wall of the mold forming cavity is coated with an anti-sticking coating. S2 concrete raw material mixing involves mixing cement, sand, gravel, and water according to the proportion to form a uniform, lump-free concrete material. S3 concrete material pouring: The mixed material is poured into the brick forming cavity of the mold until it is flush with the top surface of the plywood. S4 flat plate vibration molding uses a flat plate vibrator to vibrate against the top surface of the mold to compact the material. After compaction, the top surface material is scraped flat. S5 brick blanks are kept moist at room temperature and sealed and moisturized after vibration until they reach the demolding strength. The S6 mold is disassembled in steps for brick blank removal. The mold is disassembled in the following order: first the side end plates, then the transverse clamping plates, and finally the longitudinal clamping plates, so as to remove the brick blanks without damage.

7. The preparation process of solid concrete brick blanks according to claim 6, characterized in that: In step S1, before mold assembly, all mating surfaces such as the base plate (100), longitudinal clamping plate (102), and transverse clamping plate (101) are cleaned to remove residues and burrs. The anti-sticking treatment involves uniformly applying a water-based release agent to all inner walls of the molding cavity with a coating thickness of 0.1-0.3 mm. After application, the mixture is allowed to air dry for 5-10 minutes before proceeding with subsequent processes.

8. The preparation process of solid concrete brick blanks according to claim 7, characterized in that: In step S2, the concrete raw materials are mixed according to the mass ratio of cement:sand:water = 1:3:0.5, and a forced mixer is used to mix them at a speed of 200-300r / min for 3-5min. The slump of the mixed concrete is controlled at 30-50mm.

9. The preparation process of solid concrete brick blanks according to claim 7, characterized in that: In step S3, a layered casting method is adopted. The first casting is poured to 1 / 2 of the height of the forming cavity and left to stand for 1-2 minutes. The second casting is poured to be flush with the top surface of the transverse clamping plate (101) and the longitudinal clamping plate (102). During the casting process, the material is prevented from directly impacting the inner wall of the mold and causing damage to the cavity wall. In step S4, the plate vibrator has a vibration frequency of 30-50Hz and moves at a uniform speed of 0.1-0.2m / s along the length of the mold. After compaction, the top surface is scraped back and forth with an aluminum alloy scraper.

10. The preparation process of solid concrete brick blanks according to claim 7, characterized in that: In step S5, an impermeable moisturizing film is covered on the top surface of the mold for sealing and curing. The curing environment temperature is 20-28℃, the relative humidity is ≥85%, and the curing time is 24-48h. During the curing period, the sealing of the moisturizing film is checked every 12h. In step S6, the pin (104) is pulled out first, the end plate (103) and the movable side plate (105) are removed, and then the horizontal clamping plate (101) is taken out vertically upward along the positioning slot (102b). Finally, the sleeper (100c) is pulled out and the longitudinal clamping plate (102) is removed horizontally. The blank is taken out by manual lifting to avoid the brick blank from being bumped and cracked.

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