Recycled concrete test form forming device

Abstract

The utility model relates to concrete test mould forming technical field especially is recycled concrete test mould forming device, including vertical support, on the top vibration unit is installed, on the top of vibration unit test block forming unit is installed, test block forming unit includes the concrete storage bin fixedly installed on the top of vibration unit, is provided with the forming cavity in the inside of concrete storage bin, installs the size adjusting spare on the inside right side of forming cavity, is fixedly installed on the outside wall of concrete storage bin left side of forming cavity one material scraper, the utility model discloses through the support fixed of vertical support bottom four corners, installs vibration unit and test block forming unit on the top, sets up forming cavity in the concrete storage bin of test block forming unit, installs size adjusting spare on the right side of forming cavity, installs material scraper on the left side outside wall, can realize the adjustment of forming cavity size and the scraping of concrete surface flat, has improved the versatility of device and the flatness of test block surface.

Description

Technical Field

[0001] This utility model relates to the field of concrete mold forming technology, and in particular to a device for forming recycled concrete molds. Background Technology

[0002] Recycled concrete molds are important tools for testing the mechanical properties, durability, and other indicators of recycled concrete. Their molding quality directly affects the accuracy and reliability of the test data.

[0003] Currently, the molding and production of recycled concrete test molds mainly involves using traditional vibrating tables combined with manual assistance. For example, patent document CN201920188207.4 discloses a concrete test mold vibrating table. During operation, the mixed recycled concrete is poured into the test mold and placed on the vibrating table. The high-frequency vibration of the vibrating table causes air bubbles inside the concrete to be expelled and fills all corners of the test mold. After vibrating for a certain period of time, the surface of the test mold is manually smoothed.

[0004] However, this device has the following problems in actual use: The test mold lacks a reliable positioning structure on the vibration table, and it is prone to displacement or even overturning during vibration. This not only affects the uniform molding of concrete, but may also damage the test mold and reduce the service life of the equipment. The demolding process mainly relies on manual knocking or the use of special demolding tools, which is laborious and can easily damage the mold and the molded specimen, affecting the accuracy of the test results and the integrity of the specimen. Therefore, it is necessary to design a recycled concrete test molding device that is accurate in positioning and easy to demold. Utility Model Content

[0005] To solve one of the aforementioned technical problems, the present invention provides the following technical solution: a recycled concrete test mold forming device, comprising a vertical support, a vibration unit installed on the top of the vertical support, a test block forming unit installed on the top of the vibration unit, and supports fixedly installed at the four corners of the bottom of the vertical support. The test block forming unit includes a concrete storage silo fixedly installed on the top of the vibration unit, a forming cavity provided inside the concrete storage silo, a size adjustment component installed on the right side inside the forming cavity, the size adjustment component being used to adjust the internal space size of the forming cavity, and a scraper leveler fixedly installed on the outer wall of the concrete storage silo on the left side of the forming cavity.

[0006] Based on any of the above technical solutions, a further optimization is made as follows: the vibration unit includes lower mounting seats fixedly installed at the top four corners of the vertical support, vertically arranged buffer springs are fixedly installed on the top of each of the lower mounting seats, upper mounting seats are fixedly installed on the top of each of the buffer springs, the top of each of the upper mounting seats is fixedly installed at the bottom of the vibration platform, a vibration motor is fixedly installed at the center of the bottom of the vibration platform, and the top of the vibration platform is fixed to the bottom of the concrete storage silo.

[0007] Based on any of the above technical solutions, a further optimization is made as follows: a plurality of water filter holes are provided at intervals along the length direction on the inner walls of the front and rear sides of the molding cavity of the concrete storage silo, and each of the water filter holes connects the molding cavity to the external space.

[0008] Based on any of the above technical solutions, a further optimization is made as follows: the size adjustment component includes a sliding baffle that is slidably installed in the molding cavity. The front and rear ends of the sliding baffle are respectively movably abutted against the inner wall of the molding cavity. The top of the sliding baffle is flush with the top of the concrete storage silo. The sliding baffle divides the left and right sides of the molding cavity into a storage cavity and an idle cavity, respectively. Two horizontal screws are arranged at intervals on the right side of the sliding baffle. External threads are provided on the outer side wall of the horizontal screws. The outer end of each horizontal screw is screwed through the corresponding threaded through hole on the right side wall of the concrete storage silo and extends to its outside. A T-shaped stepped shaft is fixedly installed on the left end of each horizontal screw. Each T-shaped stepped shaft is respectively fitted into the T-shaped stepped hole inside the constraint sleeve at its corresponding position. The left end of each constraint sleeve is fixed on the right side wall of the sliding baffle. The T-shaped stepped shaft and the T-shaped stepped hole rotate relative to each other.

[0009] Based on any of the above technical solutions, a further optimization is made by fixing a rotating handwheel to the right end of each of the horizontal screws.

[0010] Based on any of the above technical solutions, a further optimization is made: each of the aforementioned constraint sleeves is composed of two symmetrically arranged half-sleeves that are detachably fixed.

[0011] Based on any of the above technical solutions, a further optimization is made as follows: the scraper leveler includes an angle steel connecting seat fixedly installed at the left end face of the concrete storage silo. A rectangular guide sleeve is provided on the top of the angle steel connecting seat. A sliding scraper is installed in the rectangular through cavity of the rectangular guide sleeve. The right end of the sliding scraper extends to the top of the forming cavity, and the left end of the sliding scraper extends to the left side of the concrete storage silo. Several vertical screws are spaced apart along the width direction on the top of the rectangular guide sleeve. The lower end of each vertical screw is screwed through a threaded hole at the corresponding position on the top of the rectangular guide sleeve and extends into the rectangular through cavity of the rectangular guide sleeve. A pressure plate is fixedly installed on the top of each vertical screw. The bottom of each pressure plate abuts against the top of the sliding scraper. A manual rotating disc is fixedly installed on the top of each vertical screw.

[0012] Based on any of the above technical solutions, a further optimization is that each of the filter holes is located in the lower part of the forming cavity.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model is fixed by the supports at the four corners of the bottom of the vertical bracket, and the vibration unit and the test block forming unit are installed at the top. The concrete storage hopper of the test block forming unit is set with a forming cavity. The size adjustment component is installed on the right side of the forming cavity, and the scraper and leveler are installed on the left outer wall. This can realize the adjustment of the size of the forming cavity and the leveling of the concrete surface, which improves the versatility of the device and the flatness of the test block surface.

[0014] 2. The vibration unit of this utility model includes a lower mounting base, a buffer spring, an upper mounting base, a vibration platform, and a vibration motor. The buffer spring can absorb vibration energy, reduce the transmission of vibration to the support and the ground, reduce the impact of device vibration on surrounding equipment or the environment, and improve the stability and service life of the device.

[0015] 3. The present invention provides water filter holes on the inner walls of the front and rear sides of the molding cavity, which can accelerate the discharge of excess water during the molding process, reduce the water-cement ratio of the concrete test block, improve the early strength and density of the test block, and the evenly distributed water filter holes make the water discharge more uniform, avoiding uneven strength of the test block due to excessive local water.

[0016] 4. The size adjustment component of this utility model can precisely adjust the size of the molding cavity through the transmission structure of a horizontal screw, a T-shaped stepped shaft and a constraint sleeve. The movable contact design between the sliding baffle and the inner wall of the molding cavity ensures the sealing of the molding cavity during the adjustment process and prevents concrete slurry leakage. At the same time, the half-sleeve structure of the constraint sleeve facilitates installation and disassembly, improving the maintenance convenience of the device. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0020] Figure 3 This is a top view of the structure of this utility model.

[0021] Figure 4 This is a side view of the structure of this utility model.

[0022] Figure 5 for Figure 3 A partially enlarged structural diagram of the mating part of the T-shaped stepped shaft and the T-shaped stepped hole in section A.

[0023] In the diagram, 1. Vertical support; 2. Support; 3. Concrete storage silo; 4. Molding cavity; 5. Lower mounting base; 6. Buffer spring; 7. Upper mounting base; 8. Vibration platform; 9. Vibration motor; 10. Filter hole; 11. Sliding baffle; 12. Horizontal screw; 13. T-shaped stepped shaft; 14. Constraint sleeve; 15. Rotary handwheel; 16. Angle steel connecting seat; 17. Rectangular guide sleeve; 18. Sliding scraper; 19. Vertical screw; 20. Pressure plate; 21. Manual rotating disk; 22. T-shaped stepped hole. Detailed Implementation

[0024] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-5 As shown in the image.

[0025] Example 1: A recycled concrete test mold forming device includes a vertical support 1, a vibration unit installed on the top of the vertical support 1, a test block forming unit installed on the top of the vibration unit, and supports 2 fixedly installed at the four corners of the bottom of the vertical support 1. The test block forming unit includes a concrete storage silo 3 fixedly installed on the top of the vibration unit. A forming cavity 4 is provided inside the concrete storage silo 3. A size adjustment component is installed on the right side inside the forming cavity 4. The size adjustment component is used to adjust the internal space size of the forming cavity 4. A scraper leveler is fixedly installed on the outer wall of the concrete storage silo 3 on the left side of the forming cavity 4.

[0026] When using the recycled concrete test mold forming device of this utility model, an appropriate amount of concrete slurry is directly poured into the forming cavity 4 of the concrete storage silo 3 using the feeding equipment. During the pouring process, the vibration unit is controlled to ensure uniform vibration of the concrete slurry and remove internal air bubbles. After vibration forming, the top of the slurry can be leveled by horizontally moving scraper, ensuring the relative flatness of the surface of the test block model during the later forming process.

[0027] By properly controlling the vibration frequency and amplitude of the vibration unit during vibration, the treatment effect of air bubbles inside the concrete slurry can be effectively guaranteed. By properly controlling the vibration frequency and amplitude of the vibration unit, the concrete slurry is made to vibrate at a specific frequency. The vibration energy is used to break the surface tension of the air bubbles, causing them to rise and be expelled, while ensuring the fluidity and density of the slurry.

[0028] A vertical support frame 1 serves as the foundation, with a vibration unit mounted on top. Above the vibration unit is a test block forming unit, and the four corners at the bottom are fixed by supports 2. The concrete storage hopper 3 of the test block forming unit contains a forming cavity 4. A size adjustment component on the right side can change the size of the forming cavity 4, and a scraper on the left outer wall is used to level the concrete surface. The entire device, through the mechanical connection of its components, forms an adjustable, vibration-based test mold structure.

[0029] Based on any of the above technical solutions, a further optimization is made as follows: the vibration unit includes lower mounting bases 5 fixedly installed at the top four corners of the vertical support 1, vertically arranged buffer springs 6 are fixedly installed on the top of each of the lower mounting bases 5, upper mounting bases 7 are fixedly installed on the top of each of the buffer springs 6, the top of each of the upper mounting bases 7 is fixedly installed at the bottom of the vibration platform 8, a vibration motor 9 is fixedly installed at the center of the bottom of the vibration platform 8, and the top of the vibration platform 8 is fixed to the bottom of the concrete storage silo 3.

[0030] The lower mounting bases 5 at the four corners of the top of the vertical support 1 are connected to the upper mounting base 7 through buffer springs 6. The upper mounting base 7 supports the vibration platform 8. When the vibration motor 9 at the bottom center of the vibration platform 8 is working, it generates vibration, which drives the platform and the concrete storage silo 3 above to vibrate. The buffer springs 6 absorb part of the vibration energy generated by the vibration motor 9, reducing the transmission of vibration to the support and the ground.

[0031] The buffer spring 6 forms a vibration isolation structure, reducing the impact of device vibration on surrounding equipment or the environment, while also reducing the loosening of the support due to long-term vibration, thus improving the stability and service life of the device. The vibration motor 9 is installed at the center of the bottom of the platform, so that the vibration energy is evenly transmitted to the concrete storage silo 3, ensuring the uniformity of vibration of the concrete slurry in the molding cavity 4.

[0032] Based on any of the above technical solutions, a further optimization is made as follows: a plurality of water filter holes 10 are provided at intervals along the length direction on the inner walls of the front and rear sides of the molding cavity 4 of the concrete storage silo 3, and each of the water filter holes 10 connects the molding cavity 4 to the external space.

[0033] Filter holes 10 are provided along the length of the inner walls on both the front and rear sides of the molding cavity 4, connecting the molding cavity 4 to the outside. During the pouring and vibration of the concrete slurry, excess water can be discharged through the filter holes 10, while the concrete aggregate and cement paste are blocked by the inner walls and retained within the molding cavity 4. The filter holes 10 can accelerate the discharge of excess water during the molding process, reduce the water-cement ratio of the concrete specimen, and improve the early strength and density of the specimen. The evenly distributed filter holes 10 ensure more uniform water discharge and avoid uneven strength of the specimen due to excessive local water.

[0034] During the vibration process, in addition to draining water, the filter holes 10 can also form local water flow channels, which can drive the air bubbles to move towards the filter holes 10 and accelerate the discharge of the air bubbles; in addition, the discharged water can be collected and reused.

[0035] Based on any of the above technical solutions, a further optimization is made as follows: the size adjustment component includes a sliding baffle 11 slidably installed in the molding cavity 4. The front and rear ends of the sliding baffle 11 are respectively movably abutting against the inner wall of the molding cavity 4. The top of the sliding baffle 11 is flush with the top of the concrete storage silo 3. The sliding baffle 11 divides the left and right sides of the molding cavity 4 into a storage cavity and an idle cavity, respectively. Two horizontally spaced screws 12 are provided on the right side of the sliding baffle 11. The outer side wall of the horizontal screw 12 is provided with external threads. The outer end of each horizontal screw 12 is screwed through the corresponding threaded through hole on the right side wall of the concrete storage silo 3 and extends to its outside. The left end of each horizontal screw 12 is fixedly installed with a T-shaped stepped shaft 13. Each T-shaped stepped shaft 13 is respectively fitted into the T-shaped stepped hole 22 inside the constraint sleeve 14 at its corresponding position. The left end of each constraint sleeve 14 is fixed on the right side wall of the sliding baffle 11. The T-shaped stepped shaft 13 rotates relative to the T-shaped stepped hole.

[0036] The sliding baffle 11 is slidably installed in the molding cavity 4, dividing the molding cavity 4 into a storage cavity and an idle cavity. By rotating the horizontal screw 12, the T-shaped stepped shaft 13 is driven to rotate in the T-shaped stepped hole of the constraint sleeve 14. Since the T-shaped stepped shaft 13 rotates relative to the constraint sleeve 14, and the constraint sleeve 14 is fixed on the right side of the sliding baffle 11, the sliding baffle 11 is pushed to move left and right in the molding cavity 4 to adjust the left and right dimensions of the storage cavity.

[0037] The transmission structure of the horizontal screw 12 and the T-shaped stepped shaft 13 provides a stable driving force, making the movement and adjustment of the sliding baffle 11 more precise and effortless. The movable contact design between the sliding baffle 11 and the inner wall of the molding cavity 4 ensures the sealing of the molding cavity 4 during adjustment, preventing concrete slurry leakage. The constraint sleeve 14 consists of two half-sleeves, facilitating the installation and disassembly of the T-shaped stepped shaft 13 and improving the ease of maintenance of the device.

[0038] In addition to adjusting dimensions, the sliding baffle 11 can also serve as a temporary template, providing lateral support to the concrete slurry during the pouring process. Combined with vibration, this allows the slurry to fill the molding cavity 4 more tightly. The threaded drive of the horizontal screw 12 has a self-locking characteristic, which can keep the sliding baffle 11 in a fixed position during the specimen molding process, preventing dimensional changes caused by vibration. After disassembly, the half-sleeve structure of the constraint sleeve 14 can be used to clean the gap between the sliding baffle 11 and the molding cavity 4, preventing the slurry from solidifying and affecting the subsequent adjustment accuracy.

[0039] Based on any of the above technical solutions, a further optimization is made by fixing a rotating handwheel 15 to the right end of each of the horizontal screws 12.

[0040] The rotating handwheel 15, which is fixedly installed on the right end of the horizontal screw 12, provides a point of force for the operator. By manually rotating the handwheel 15, the horizontal screw 12 is driven to rotate, which in turn drives the sliding baffle 11 to move, thereby realizing the adjustment of the size of the molding cavity 4.

[0041] Based on any of the above technical solutions, a further optimization is made: each of the constraint sleeves 14 is composed of two symmetrically arranged half-sleeves that are detachably fixed.

[0042] The constraint sleeve 14 consists of two symmetrical, detachable, and fixed halves, which are fitted onto the outside of the T-shaped stepped shaft 13. The fixing of the halves forms a T-shaped stepped hole, which constrains the axial movement of the T-shaped stepped shaft 13 while allowing it to rotate relative to each other within the hole, thereby supporting and guiding the sliding baffle 11.

[0043] The detachable half-set structure facilitates the installation and removal of the T-shaped stepped shaft 13. When maintenance or replacement of parts is required, the constraint sleeve 14 can be quickly disassembled, improving the maintainability of the device.

[0044] The T-shaped stepped hole formed after the half-set is fixed is precisely matched with the T-shaped stepped shaft 13, which ensures the stability and guidance of the sliding baffle 11 when it moves, and avoids the size adjustment error caused by shaking.

[0045] Example 2: Compared with Example 1, this example also includes the following technical features: Based on any of the above technical solutions, a further optimization is made as follows: the scraper leveler includes an angle steel connecting seat 16 fixedly installed at the left end face of the concrete storage silo 3. A rectangular guide sleeve 17 is provided on the top of the angle steel connecting seat 16. A sliding scraper 18 is fitted inside the rectangular through cavity of the rectangular guide sleeve 17. The right end of the sliding scraper 18 extends above the forming cavity 4, and the left end of the sliding scraper 18 extends to the left side of the concrete storage silo 3. The top of the guide sleeve 17 is provided with a plurality of vertical screws 19 spaced apart along its width direction. The lower end of each vertical screw 19 is screwed through a threaded hole at the corresponding position on the top of the rectangular guide sleeve 17 and extends into the rectangular through cavity of the rectangular guide sleeve 17. A pressure plate 20 is fixedly installed on the top of each vertical screw 19. The bottom of each pressure plate 20 abuts against the top of the sliding scraper 18. A manual rotating disk 21 is fixedly installed on the top of each vertical screw 19.

[0046] Angle steel connecting seat 16 is fixed to the left end face of concrete storage silo 3. The rectangular guide sleeve 17 at the top provides a sliding track. The sliding scraper 18 slides in the rectangular through cavity and extends to the top of the forming cavity 4 at the right end. By rotating the manual rotating disk 21 at the top of the vertical screw 19, the pressure plate 20 is driven to move up and down. The pressure plate 20 abuts against or releases the sliding scraper 18, thereby fixing or unlocking the sliding scraper 18, which facilitates adjusting the height of the sliding scraper 18 and scraping the concrete slurry at the top of the forming cavity 4.

[0047] The cooperation between the rectangular guide sleeve 17 and the sliding scraper 18 enables the precise linear movement of the sliding scraper 18, ensuring the smoothness and straightness of the leveling operation. The combination of the vertical screw 19 and the pressure plate 20 provides a reliable locking mechanism, which can fix the sliding scraper 18 at any height to adapt to the leveling needs of slurry of different thicknesses.

[0048] The manual rotating disc 21 makes height adjustment more convenient, and the locking degree of the pressure disc 20 can be controlled by the rotation force to avoid excessive compression that could deform the sliding scraper 18.

[0049] Based on any of the above technical solutions, a further optimization is that each of the filter holes 10 is located in the lower part of the forming cavity 4.

[0050] The filter hole 10 is located at the lower part of the molding cavity 4. After the concrete slurry is poured, because the density of water is less than that of concrete aggregate and cement paste, the excess water accumulates at the lower part of the molding cavity 4 under the action of gravity and is discharged through the filter hole 10 at the lower part. Meanwhile, the aggregate and cement paste in the upper part of the slurry sink due to gravity and fill the space after the water is discharged.

[0051] Working Process: Device Preparation and Installation: Place the vertical support 1 on a flat surface and secure it with the supports 2 at the four corners to ensure stability. Install the vibration unit on top of the vertical support 1, including the lower mounting base 5, buffer spring 6, upper mounting base 7, vibration platform 8, and vibration motor 9, ensuring the vibration platform 8 is horizontal. Fix the concrete storage silo 3 to the top of the vibration platform 8, ensuring the inside of the molding cavity 4 is clean. Check that the size adjustment components are properly installed and can be adjusted flexibly, and confirm that the scraper leveler is securely installed and slides smoothly.

[0052] Adjusting the size of the molding cavity 4: According to the required specifications of the concrete test block, the sliding baffle 11 is driven to move left and right within the molding cavity 4 by rotating the rotating handwheel 15 at the right end of the horizontal screw 12. When the horizontal screw 12 rotates, the T-shaped stepped shaft 13 rotates within the T-shaped stepped hole of the constraint sleeve 14. Since the constraint sleeve 14 is fixed to the right side of the sliding baffle 11, it drives the sliding baffle 11 to move, dividing the molding cavity 4 into storage cavities and idle cavities of different sizes. After adjustment, ensure that the sliding baffle 11 is in close contact with the inner wall of the molding cavity 4 to prevent slurry leakage.

[0053] Concrete slurry pouring: A suitable amount of recycled concrete slurry is poured into the pre-sized molding cavity 4 using a feeding device. During pouring, the vibration motor 9 of the vibration unit is activated, driving the vibration platform 8 and the concrete storage silo 3 to vibrate. The vibration frequency and amplitude are rationally controlled according to the concrete slurry mix ratio and the characteristics of the recycled aggregate. The vibration action ensures uniform distribution of the concrete slurry and simultaneously breaks down the surface tension of internal air bubbles, causing them to rise and be expelled, thus ensuring the density of the slurry.

[0054] Excess moisture drainage: During the casting and vibration process, the filter holes 10 on the lower part of the inner wall on both sides of the molding cavity 4 drain the excess moisture in the molding cavity 4 to the outside. Due to the low density of water, it accumulates in the lower part of the molding cavity 4 under the action of gravity and vibration, and is discharged through the filter holes 10, which reduces the water-cement ratio of the test block, improves the early strength and density, and avoids uneven strength of the test block due to excessive moisture.

[0055] Slurry surface leveling: After the concrete slurry has been vibrated and molded, stop the vibration motor 9. Adjust the height of the sliding scraper 18 of the slurry leveler by rotating the manual rotating disc 21 at the top of the vertical screw 19 to loosen the pressure plate 20, and adjust the sliding scraper 18 to a suitable height (usually flush with or slightly lower than the top of the molding cavity 4). Then tighten the pressure plate 20 to fix the scraper. Move the sliding scraper 18 horizontally so that its right end slides above the molding cavity 4 to level the top of the slurry, remove excess slurry, and ensure the surface flatness of the molded specimen.

[0056] Test block curing and demolding: After leveling, the concrete test blocks in the molding cavity 4 are naturally cured or steam cured. Once the test blocks reach a certain strength, the horizontal screw 12 of the size adjustment component is loosened, the sliding baffle 11 is moved to expand the space of the molding cavity 4, and then the test blocks are removed from the molding cavity 4 for subsequent performance tests (such as compressive strength, flexural strength, etc.). Throughout the entire process, the various components of the device work together to achieve efficient and precise molding of recycled concrete test blocks through vibration compaction, size adjustment, leveling, and water filtration, meeting the quality requirements of engineering and experiments.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0058] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A device for molding recycled concrete test molds, characterized in that: The device includes a vertical support frame, a vibration unit mounted on top of the vertical support frame, a test block forming unit mounted on top of the vibration unit, and supports fixedly mounted at the four corners of the bottom of the vertical support frame. The test block forming unit includes a concrete storage silo fixedly mounted on top of the vibration unit, a forming cavity provided inside the concrete storage silo, a size adjustment component mounted on the right side inside the forming cavity, the size adjustment component being used to adjust the internal space size of the forming cavity, and a scraper leveling device fixedly mounted on the outer wall of the concrete storage silo on the left side of the forming cavity.

2. The recycled concrete mold forming device according to claim 1, characterized in that: The vibration unit includes lower mounting bases fixedly installed at the top four corners of the vertical support. Vertically arranged buffer springs are fixedly installed on the top of each lower mounting base. Upper mounting bases are fixedly installed on the top of each buffer spring. The top of each upper mounting base is fixedly installed at the bottom of the vibration platform. A vibration motor is fixedly installed at the center of the bottom of the vibration platform. The top of the vibration platform is fixed to the bottom of the concrete storage silo.

3. The recycled concrete mold forming device according to claim 2, characterized in that: Several filter holes are provided at intervals along the length of the inner walls on the front and rear sides of the molding cavity of the concrete storage silo, and each filter hole connects the molding cavity to the external space.

4. The recycled concrete mold forming device according to claim 3, characterized in that: The size adjustment component includes a sliding baffle that is slidably installed in the molding cavity. The front and rear ends of the sliding baffle are respectively movably abutting against the inner wall of the molding cavity. The top of the sliding baffle is flush with the top of the concrete storage silo. The sliding baffle divides the left and right sides of the molding cavity into a storage cavity and an idle cavity, respectively. Two horizontal screws are arranged at intervals on the right side of the sliding baffle. External threads are provided on the outer side wall of the horizontal screws. The outer end of each horizontal screw is screwed through the corresponding threaded through hole on the right side wall of the concrete storage silo and extends to its outside. A T-shaped stepped shaft is fixedly installed on the left end of each horizontal screw. Each T-shaped stepped shaft is respectively fitted into the T-shaped stepped hole inside the constraint sleeve at its corresponding position. The left end of each constraint sleeve is fixed on the right side wall of the sliding baffle. The T-shaped stepped shaft and the T-shaped stepped hole rotate relative to each other.

5. The recycled concrete test mold forming device according to claim 4, characterized in that: A rotating handwheel is fixedly installed at the right end of each of the horizontal screws.

6. The recycled concrete mold forming device according to claim 5, characterized in that: Each of the aforementioned constraint sleeves consists of two symmetrically arranged half-sleeves that are detachably fixed.

7. The recycled concrete mold forming device according to claim 6, characterized in that: The material scraper includes an angle steel connecting seat fixedly installed on the left end face of the concrete storage silo. A rectangular guide sleeve is provided on the top of the angle steel connecting seat. A sliding scraper is installed in the rectangular through cavity of the rectangular guide sleeve. The right end of the sliding scraper extends above the forming cavity, and the left end of the sliding scraper extends to the left side of the concrete storage silo. Several vertical screws are spaced apart along the width direction on the top of the rectangular guide sleeve. The lower end of each vertical screw is screwed through a threaded hole at the corresponding position on the top of the rectangular guide sleeve and extends into the rectangular through cavity of the rectangular guide sleeve. A pressure plate is fixedly installed on the top of each vertical screw. The bottom of each pressure plate abuts against the top of the sliding scraper. A manual rotating disc is fixedly installed on the top of each vertical screw.

8. The recycled concrete mold forming device according to claim 7, characterized in that: Each of the aforementioned filter holes is located in the lower part of the forming cavity.

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