Anti-scouring bare concrete preparation equipment and working method thereof

Abstract

The invention discloses anti-scouring fair-faced concrete preparation equipment and a working method thereof, and relates to the technical field of anti-scouring fair-faced concrete production. The preparation equipment comprises a stirring bin, a discharging guide plate, a storage box and a segmented sampling mechanism; the sectional sampling mechanism comprises an automatic rotary material receiving mechanism and a turnover mechanism, the automatic rotary material receiving mechanism comprises a supporting disc and a plurality of material receiving barrels. An electric telescopic rod drives an arranged supporting disc to transversely move to the position below a discharging guide plate, a corresponding material receiving barrel can move to a sampling material opening to receive discharged concrete when the supporting disc moves each time, the electric telescopic rod is repeatedly controlled to contract and extend, and when the electric telescopic rod extends each time, a rotating column drives the distributed material receiving barrels to automatically deflect, so that switching of the material receiving barrels is achieved; the concrete sampling device is simple in structure and convenient to use, different sections of concrete can be conveniently sampled in sections through different material receiving barrels, cross influence of different sections of concrete can be avoided, manual sampling operation with tools is not needed, sampling detection efficiency is improved, and operation safety is improved.

Description

Technical Field

[0001] This invention relates to the field of erosion-resistant fair-faced concrete production technology, and in particular to an erosion-resistant fair-faced concrete preparation equipment and its working method. Background Technology

[0002] Erosion-resistant fair-faced concrete is a special type of concrete that combines excellent resistance to water erosion with a fair-faced finish. It is primarily used in hydraulic engineering structures and other applications where resistance to high-speed water flow, silt abrasion, and cavitation damage is required, while also demanding a clean, uniform, and aesthetically pleasing exposed concrete surface. Compared to ordinary concrete, erosion-resistant fair-faced concrete has higher quality requirements. For the finish, any defects such as uneven color, bleeding, or sand streaks are irreparable. Furthermore, insufficient local strength or poor density can create weak points under high-speed water flow, leading to spalling or cavitation. Therefore, the production and preparation of erosion-resistant fair-faced concrete requires strict uniformity sampling. Samples must be taken from the front, middle, and rear sections of the mixer discharge flow for independent segmented testing to accurately pinpoint problematic areas.

[0003] Currently, in existing technologies, the sampling and testing of erosion-resistant fair-faced concrete preparation relies on manual labor using shovels and other tools to sequentially scoop a certain amount of concrete at different stages of the unloading process and place it into different clean containers. Then, the concrete from each sampling container is poured onto a clean, level, non-absorbent mixing board or a sufficiently large tray. The concrete mixture is then thoroughly mixed with a shovel. A portion of the thoroughly mixed concrete is tested for slump according to standard methods, another portion is tested for apparent density, and a third portion is tested for air content.

[0004] The shortcomings of the existing technical solutions are as follows: When the existing anti-erosion fair-faced concrete preparation equipment is used to prepare and unload the concrete, it relies on manual sampling in sections. This requires the operator to be close enough to the equipment and the unloading position, which poses certain safety hazards. At the same time, manual sampling using tools and placing the samples into different containers is slow and reduces efficiency. In addition, because the same shovel is used for sampling in sections, it is difficult to completely separate the concrete adhering to the shovel each time. This can lead to the concrete samples from different sections being heavily contaminated by the concrete from other sections, which can affect the accuracy of subsequent test results. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-erosion fair-faced concrete preparation device and its working method, so as to solve the technical problems of the existing anti-erosion fair-faced concrete preparation device relying on manual segmented sampling during the unloading process, which is inefficient, unsafe, and prone to cross-influence of samples from different segments.

[0006] The technical problem to be solved by this invention can be achieved through the following technical solution: An anti-erosion fair-faced concrete preparation device includes a mixing chamber, a discharge guide plate and a storage box. The discharge guide plate is used to guide the concrete to be discharged from the mixing chamber. It also includes a segmented sampling mechanism. The segmented sampling mechanism includes an automatic rotating receiving mechanism and a flipping mechanism. The automatic rotating receiving mechanism includes a support plate and receiving cylinders. Multiple receiving cylinders are provided and are circumferentially distributed on the support plate. The support plate is provided with a rotating drive mechanism that drives the distributed receiving cylinders to move along the circumference of the support plate. Each receiving cylinder is equipped with a flipping mechanism, which is used to drive the receiving cylinder to automatically flip and pour material.

[0007] Preferably, the preparation equipment further includes an electric telescopic rod and a support base. The electric telescopic rod is fixedly mounted on one side of the discharge guide plate via the support base. The support plate is connected to the telescopic end of the electric telescopic rod. The discharge guide plate has a sampling discharge port, which is aligned with one of the receiving cylinders.

[0008] Preferably, the rotary drive mechanism includes a rotating column, a linkage baffle, a support frame, and a one-way limiting block. The rotating column is rotatably connected to the center of the support plate, and the receiving cylinder rotates synchronously with the rotating column. Multiple linkage baffles are provided and are circumferentially and equidistantly fixed to the bottom of the rotating column, and the linkage baffles are distributed correspondingly to the receiving cylinder. The one-way limiting block is movably connected to the support frame through a spring-loaded hinge, and the one-way limiting block cooperates with the linkage baffles.

[0009] Preferably, each set of the flipping mechanism includes a U-shaped fixing frame, a connecting rotating block, and a positioning block. The U-shaped fixing frame rotates with the rotation drive mechanism. The connecting rotating block is fixedly connected to one side of the bottom of the corresponding receiving cylinder, and the connecting rotating block is also rotatably connected to the U-shaped fixing frame. The positioning block is fixedly connected to the U-shaped fixing frame and cooperates with the corresponding connecting rotating block. A set of universal wheels is installed on the other side of the bottom of each receiving cylinder. A notch is opened on the side of the support plate away from the discharge guide plate. An adjustable rotating support mechanism for supporting the receiving cylinder is provided below the notch.

[0010] Preferably, the adjustable rotating support mechanism includes a U-shaped rotating frame and a limiting guide rail mechanism; the U-shaped rotating frame is fitted below the notch and is rotatably connected to the bottom of the support plate; the U-shaped rotating frame can deflect in the vertical direction; both ends of the U-shaped rotating frame are fixedly connected to support blocks for contacting the universal wheel assembly; and both support blocks are rotatably connected to rollers that slide in cooperation with the limiting guide rail mechanism.

[0011] Preferably, the limiting guide rail mechanism is provided in two sets and is located on both sides below the support plate. Each set of the limiting guide rail mechanism includes a linear guide rail and a lower curved guide rail. The linear guide rail is fixedly connected to the support base, and the lower curved guide rail is fixedly connected to the end of the linear guide rail away from the discharge guide plate. The two rollers are respectively mounted on the corresponding linear guide rail.

[0012] Preferably, a connecting guide rod is fixedly connected to the side of the support plate near the discharge guide plate, and a connecting crossbar is fixedly connected to the telescopic end of the electric telescopic rod. The connecting guide rod passes through the connecting crossbar, and a second limiting spring is connected between the support plate and the connecting crossbar. A push rod is horizontally fixedly connected below the connecting crossbar. Each receiving cylinder is a through cylindrical component, and a sliding scraper is slidably connected inside each receiving cylinder. An elastic telescopic component is connected between the sliding scraper and the corresponding receiving cylinder. The push rod is correspondingly engaged with the sliding scraper. Whenever the receiving cylinder at the notch position rotates to the horizontal position, the push rod is aligned with the sliding scraper inside the receiving cylinder at that position. An auxiliary baffle is fixedly connected to the support base, and an abutment plate that engages with the auxiliary baffle is fixedly connected to the bottom side of each receiving cylinder away from the U-shaped fixing frame. Preferably, a pendulum is provided on the side of the sliding scraper near the push rod, and the hammer handle end of the pendulum is movably connected to the sliding scraper via a spring-loaded hinge. A protruding plate is fixedly connected to the hammer handle end of the pendulum. An elastic winding drum is also rotatably provided on the sliding scraper. A pull line is wound on the elastic winding drum, and the end of the pull line is fixedly connected to the inner wall of the receiving drum. A cam that cooperates with the protruding plate is also coaxially fixedly connected to the elastic winding drum. Both the sliding scraper and the receiving drum are elastic metal bodies.

[0013] Preferably, a support slide rail is fixedly connected to the support base, and a receiving plate is slidably connected to the support slide rail. Multiple mixing troughs corresponding to the receiving cylinders are evenly distributed on the receiving plate. A horizontal bar is fixedly connected to the side of the receiving plate near the support plate. Multiple linkage triangular blocks are evenly distributed on the horizontal bar. A vertical shaft is rotatably connected to the bottom side of the support plate, and a disc spring is connected between the vertical shaft and the support plate. A slanted push rod that cooperates with the linkage triangular blocks is fixedly connected to the bottom of the vertical shaft.

[0014] A working method for an anti-erosion fair-faced concrete preparation device, the specific steps of which are as follows: The first step is to pour the raw materials for preparing erosion-resistant fair-faced concrete into the mixing chamber and then mix them in the mixing chamber to prepare concrete slurry. The second step is to discharge the mixed concrete slurry into the storage tank through the discharge guide plate; The third step is that during the unloading process, the receiving cylinder of the automatic rotating receiving mechanism moves along the circumference of the support plate by the rotation drive mechanism, and passes through the sampling position in sequence to take samples at different stages. The concrete samples in each receiving cylinder are poured out in sequence by the flipping mechanism for uniformity testing.

[0015] The beneficial effects of this invention are: 1. In this invention, when concrete is discharged through the discharge guide plate, an electric telescopic rod drives a support plate to move laterally below the discharge guide plate. Each movement moves the corresponding receiving cylinder to the sampling port to catch the discharged concrete. The electric telescopic rod is repeatedly controlled to contract and extend. Each time it extends, the linkage baffle at the bottom of the support plate will squeeze the unidirectional limiting block and be deflected by the squeezing reaction force. This causes the connected rotating column to automatically deflect the distributed receiving cylinders, realizing the switching of receiving cylinders and facilitating the sampling of the next section of concrete. In this way, segmented sampling can be achieved through different receiving cylinders, avoiding cross-influence between different sections of concrete. At the same time, manual sampling is not required, improving sampling and testing efficiency and operational safety.

[0016] 2. During the retraction and extension process of the electric telescopic rod of the present invention, the distributed receiving cylinders can move in a circular motion on the support plate, which facilitates the receiving cylinder of the previous sampling to turn to the notch position. Whenever the next sampling is completed and the rod retracts, the U-shaped rotating frame below the receiving cylinder at the notch position moves along the linear guide rail by the support block at the end. When it moves to the lower curved guide rail at the end of the linear guide rail, the U-shaped rotating frame will deflect, causing the receiving cylinder at the notch position to lose support. In this way, the receiving cylinder will flip relative to the U-shaped fixed frame by the connecting rotating block, which facilitates the automatic pouring out of the loaded concrete sample and facilitates the processing and testing of the sample.

[0017] 3. When the support plate of this invention drives the receiving cylinder to exit from below the discharge guide plate and causes the receiving cylinder at the notch position to flip, the inclined push rod set below the support plate moves synchronously with the support plate and abuts against the linkage triangular inclined block on the horizontal bar. It also pushes the horizontal bar to move the receiving plate along the support slide rail a certain distance by relying on the oblique extrusion force, so that the corresponding mixing tank can be completely moved to the bottom of the flipped receiving cylinder, which is convenient for catching the fallen concrete sample. In addition, samples of different sections can be automatically poured into the mixing tanks at different positions, which is convenient for mixing and testing.

[0018] 4. After the receiving cylinder at the notch position of the present invention is flipped, it is in a horizontal position and cannot move forward due to the cooperation of the abutment block and the auxiliary stop block. At this time, the electric telescopic rod continues to retract, which allows the connecting cross frame to continue to move relative to the support plate and drive the push rod to move. The push rod then inserts into the flipped receiving cylinder and pushes the sliding scraper to move, which facilitates the full ejection of the residual concrete material attached to the receiving cylinder, avoiding excessive residue due to the viscosity of the concrete slurry, which would affect subsequent testing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall left-side structure of the present invention; Figure 3 yes Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the connection between the discharge pipe and the guide plate in this invention; Figure 5 This is a schematic cross-sectional view of the connection between the discharge pipe and the sealing plate in this invention. Figure 6 This is a schematic diagram of one embodiment of the present invention when the discharge pipe and the receiving cylinder are connected; Figure 7 This is a schematic diagram of another embodiment of the present invention when the discharge pipe and the receiving cylinder are connected; Figure 8 This is a schematic diagram of the connection between the electric telescopic rod and the support plate in this invention; Figure 9 This is a schematic diagram of the connection between the receiving cylinder and the support plate in this invention; Figure 10 This is a schematic diagram of the relative positional distribution of the support disk, the linear guide rail, and the lower curved guide rail in this invention. Figure 11 This is a schematic diagram of the structure in which the support plate, the U-shaped rotating frame, and the linkage baffle are configured in cooperation in this invention; Figure 12 This is a schematic diagram of the structure in which the support block and the corresponding receiving cylinder are connected and aligned in this invention; Figure 13 yes Figure 10 Enlarged structural diagram at point B; Figure 14 This is a schematic diagram of the state in which the linkage baffle rotates when it advances past the unidirectional limiting block in this invention; Figure 15 This is a schematic diagram showing the state of the one-way limit block deflection caused by the linkage baffle retracting past the one-way limit block in this invention. Figure 16This is a top view of the relative positions of the receiving plate, the linkage triangular inclined block, and the inclined push rod in this invention. Figure 17 This is a schematic diagram of the state when the support plate drives the inclined rod to move and abut against the linkage triangular inclined block in this invention; Figure 18 This is a schematic diagram of the state of the receiving cylinder when it is flipped over to pour material in this invention; Figure 19 yes Figure 18 Enlarged structural diagram at point C; Figure 20 This is a schematic diagram of the structure in which the receiving cylinder and the pendulum are connected in this invention.

[0020] Explanation of reference numerals in the attached figures: 1. Mixing bin; 2. Discharge guide plate; 3. Baffle plate; 4. Storage bin; 5. Support base; 6. Receiving cylinder; 7. Receiving plate; 8. Electric telescopic rod; 9. Support plate; 10. Discharge pipe; 11. Guide plate; 12. Linkage baffle; 13. First limit spring; 14. Liquid level sensor; 15. Sliding scraper; 16. Sealing plate; 17. Elastic telescopic component; 18. Connecting guide rod; 19. Second limit spring; 20. Connecting crossbeam; 21. Lower bending guide rail; 22. Linear guide rail; 23. Notch; 24. 25. Rotating column; 26. U-shaped fixing frame; 27. Connecting rotating block; 28. Positioning stop block; 29. ​​Contact plate; 30. Linkage baffle; 31. Universal wheel set; 32. Support block; 33. U-shaped rotating frame; 34. Roller; 35. Support fixing frame; 36. One-way limit block; 37. Mixing trough; 38. Crossbar; 39. Linkage triangular inclined block; 40. Inclined push rod; 41. Auxiliary baffle; 42. Support slide rail; 43. Push rod; 44. Pendulum; 45. Elastic winding drum; 46. Pull line; 47. Protruding plate; 48. Cam. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0022] like Figures 1-20As shown, an anti-erosion fair-faced concrete preparation device includes a mixing chamber 1, a discharge guide plate 2, and a storage box 4. A feeding funnel is provided on one side of the mixing chamber 1 to facilitate the introduction of raw materials for preparing anti-erosion fair-faced concrete into the mixing chamber 1. A dual-shaft mixing component is provided inside the mixing chamber 1 for mixing the raw materials to achieve concrete preparation. The entire mixing chamber 1 can be tilted. The feeding funnel can be fixedly set on the higher side of the mixing chamber 1, and the discharge guide plate 2 is set on the lower side of the mixing chamber 1. A discharge port is opened on the side of the mixing chamber 1 near the discharge guide plate 2. A baffle plate 3 is installed at the discharge port to close the discharge port. The baffle plate 3 can close the discharge port. An electric guide rail is also installed on the outer wall of the mixing chamber 1 to drive the baffle plate 3 to move up and down. After the mixing preparation is completed, the baffle plate 3 is driven to rise by the electric guide rail, so as to facilitate the discharge of concrete, which flows along the discharge guide plate 2 and falls into the storage box 4. The storage box 4 can be a mobile vehicle trailer or other mobile container to facilitate the use of the prepared concrete. The preparation equipment also includes a segmented sampling mechanism, which comprises an automatic rotating receiving mechanism and a flipping mechanism. The automatic rotating receiving mechanism includes a support plate 9 and receiving cylinders 6. Multiple receiving cylinders 6 are provided, preferably three, because when testing the uniformity of erosion-resistant fair-faced concrete, material is taken during the unloading process, sampling the front, middle, and rear sections. The receiving cylinders 6 are circumferentially distributed on the support plate 9, and the support plate 9 is equipped with a rotating drive mechanism that drives the distributed receiving cylinders 6 to move along the circumference of the support plate 9, facilitating the sequential receiving and sampling of material from different receiving cylinders 6 at different stages. Each receiving cylinder 6 is equipped with a flipping mechanism, which drives the receiving cylinder 6 to automatically flip and pour material, eliminating the need for manual sampling operations, improving sampling efficiency, and ensuring construction safety.

[0023] In some specific implementation schemes, refer to Figure 8 As shown, the preparation equipment also includes an electric telescopic rod 8 and a support base 5. The electric telescopic rod 8 is fixedly installed on one side of the discharge guide plate 2 through the support base 5. The support plate 9 is connected to the telescopic end of the electric telescopic rod 8 and can move laterally together with the telescopic end of the electric telescopic rod 8. The discharge guide plate 2 is provided with a sampling discharge port, and the sampling discharge port is aligned with one of the receiving cylinders 6.

[0024] In some specific implementation schemes, to prevent the sampling discharge port from continuously discharging material when not connected to the receiving cylinder 6, and to ensure that the discharge port only opens when connected to the receiving cylinder 6, refer to... Figures 3 to 5As shown, a discharge pipe 10 connected to the sampling discharge port can be fixedly installed at the bottom of the discharge guide plate 2. The cross-sectional dimensions of the discharge pipe 10 are adapted to the cross-sectional dimensions of the receiving cylinder 6, so that concrete can fall into the receiving cylinder 6. A sealing plate 16 is slidably inserted at one end of the discharge pipe 10 near the sampling discharge port. The sealing plate 16 passes through one side of the discharge pipe 10 and can slide back and forth laterally. A linkage baffle 12 is provided at the bottom of the discharge pipe 10. A connecting vertical plate is fixedly connected between the linkage baffle 12 and the sealing plate 16. A stretchable first limiting spring 13 is connected between the connecting vertical plate and the discharge pipe 10. When the receiving cylinder 6 is in a vertical position, its top is aligned with the linkage baffle 12 and is lower than the bottom of the discharge pipe 10. When material needs to be received, the electric telescopic rod 8 extends, driving the support plate 9 to move laterally. The support plate 9 then moves the distributed receiving cylinders 6 laterally. The receiving cylinder 6 aligned with the discharge pipe 10 moves to below the discharge pipe 10 and abuts against the linkage baffle 12 during the movement. The linkage baffle 12 drives the sealing plate 16 to slide open, thus opening the sampling discharge port. During this process, the first limit spring 13 is stretched to generate a rebound force. Then, the concrete flowing along the discharge guide plate 2 can be discharged through the opened sampling discharge port and fall into the receiving cylinder 6 along the discharge pipe 10.

[0025] In other specific implementations, to facilitate the determination of the amount of concrete during the receiving process and ensure that the amount of concrete sampled each time is at least the required amount, a liquid level sensor 14 can be installed at one end of the sealing plate 16 inside the discharge pipe 10, with the liquid level sensor 14 located on the lower surface of the discharge pipe 10. At the same time, the length of the linkage baffle 12 is shorter than that of the sealing plate 16 to avoid obstructing the liquid level sensor 14. When the receiving cylinder 6 moves laterally to align with the lower part of the discharge pipe 10, the liquid level sensor 14 can be aligned with one side inside the receiving cylinder 6 to detect the concrete liquid level inside the receiving cylinder 6. An indicator light is set at the position of the external control panel of the equipment. When the liquid level sensor 14 feeds back a signal to the corresponding signal receiver, the central control device controls the corresponding indicator light to light up based on the received signal, so as to remind the operator to control the electric telescopic rod 8 to drive the receiving cylinder 6 to exit from the lower part of the discharge pipe 10. After exiting, the sealing plate 16 can be positioned under the action of the rebound force of the first limit spring 13 to reseal the sampling discharge port.

[0026] In some specific implementation schemes, to avoid excessive longitudinal length of the discharge pipe 10, resulting in too much residual concrete material on the inner wall during each sampling, causing subsequent sampling to be mixed with excessive amounts of previous concrete material and leading to significant errors in sampling and testing at different stages, the following can be referred to: Figure 7 By setting the longitudinal length of the discharge pipe 10 to be relatively short, and ensuring that the longitudinal length of the discharge pipe 10 is as close as possible to the thickness of the sealing plate 16, normal sampling can still be performed.

[0027] In addition, to prevent the receiving cylinder 6 from deflecting during the process of squeezing the linkage baffle 12, guide plates 11 are fixedly connected to both sides of the bottom of the discharge pipe 10, and the distance between the two guide plates 11 matches the width of the receiving cylinder 6, so as to guide and limit the deflection of the receiving cylinder 6.

[0028] It should be noted that the discharge pipe 10, the sealing plate 16 and the linkage baffle 12 can also be omitted, and the material can be discharged continuously directly. The liquid level sensor 14 can be directly set near the sampling discharge port, ensuring that the diameter of the receiving cylinder 6 is larger than the sampling discharge port.

[0029] In some specific implementations, to facilitate automatic rotation and switching to the next receiving cylinder 6 after each sampling from one of the receiving cylinders 6, refer to... Figures 9 to 13 As shown, the rotary drive mechanism includes a rotating column 24, a linkage baffle 29, a support fixing frame 34, and a one-way limiting block 35. The rotating column 24 is rotatably connected to the center of the support plate 9. The rotating column 24 can only rotate on the support plate 9 and cannot be detached. The receiving cylinder 6 rotates synchronously with the rotating column 24. Multiple linkage baffles 29 are provided, and the linkage baffles 29 are circumferentially and equidistantly fixed to the bottom of the rotating column 24. The linkage baffles 29 are correspondingly distributed with the receiving cylinder 6. The support fixing frame 34 can be fixedly connected to the support base 5. The end of the support fixing frame 34 extends to a position close to the linkage baffle 29. The one-way limiting block 35 is movably connected to the support fixing frame 34 through a spring-loaded hinge. It should be noted that the end face of the connecting end of the one-way limiting block 35 is flush with the support base 5. The end face of the support frame 34 is fitted together, and the side of the one-way limiting block 35 connected away from the sampling discharge port is movably connected to the end of the support frame 34 via a spring-loaded hinge. The one-way limiting block 35 and the linkage baffle 29 are correspondingly matched, specifically, the end of the one-way limiting block 35 is aligned with the central axis of the linkage baffle 29 around which it rotates. When the electric telescopic rod 8 retracts, causing the support plate 9 to drive the distributed receiving cylinders 6 to detach from the sampling receiving port, the distributed linkage baffles 29 move laterally with the support plate 9. When they move to the position of the one-way limiting block 35, one of the linkage baffles 29 contacts the one-way limiting block 35. During this process, the one-way limiting block 35 can deflect relative to the support frame 34. Figure 15 As shown, during this process, the linkage baffle 29 will not cause the rotating column 24 to deflect; and when the distributed linkage baffles 29 have completely passed the position of the one-way limit block 35, the one-way limit block 35 will rotate back to its original position by the rebound force of the spring hinge; when the electric telescopic rod 8 extends again, causing the support plate 9 to move laterally closer to the discharge guide plate 2, the distributed linkage baffles 29 will pass the position of the one-way limit block 35 again. At this time, the one-way limit block 35 cannot deflect relative to the support fixing frame 34, so the linkage baffles 29 will be subjected to the squeezing reaction force, and the linkage baffles 29 will drive the connected rotating column 24 to rotate. (See reference...) Figure 14As shown, the rotating column 24 drives the distributed receiving cylinders 6 to rotate, and when the distributed linkage baffles 29 completely pass the position of the one-way limit block 35, the next unused empty receiving cylinder 6 rotates to the position that matches the sampling receiving port, so that the second section of sampling can be carried out through the second receiving cylinder 6. In this way, the three different receiving cylinders 6 can be used to carry out segmented sampling in different discharge sections, and then tested separately to avoid cross-influence of concrete in different discharge sections.

[0030] It should be noted that whether the unidirectional limiting block 35 is located on the left or right side of the distributed support plate 9 can be determined based on the actual needs of the rotating column 24 according to the corresponding rotation direction.

[0031] In some specific implementation plans, such as Figure 9 As shown, each set of flipping mechanisms includes a U-shaped fixing frame 25, a connecting rotating block 26, and a positioning block 27. The U-shaped fixing frame 25 is fixedly connected to the rotating column 24 via a horizontal plate. The connecting rotating block 26 is fixedly connected to one side of the bottom of the corresponding receiving cylinder 6, and the connecting rotating block 26 is also rotatably connected to the U-shaped fixing frame 25 via a rotating shaft. The positioning block 27 is fixedly connected to the U-shaped fixing frame 25 and cooperates with the corresponding connecting rotating block 26. When the connecting rotating block 26 rotates to the horizontal position, it can fit exactly under the positioning block 27, thereby keeping the corresponding receiving cylinder 6 in a horizontal position. Horizontal position; each receiving cylinder 6 is equipped with a caster wheel set 30 on the other side of its bottom. The caster wheel set 30 includes two casters, which are distributed in pairs on both sides of the receiving cylinder 6. When the receiving cylinder 6 is in a vertical position and moves along the circumference of the support plate 9 with the rotating column 24, it can be supported by the caster wheel set 30 to maintain a horizontal position and move along the support plate 9. A notch 23 is opened on the side of the support plate 9 away from the discharge guide plate 2. The width of the notch 23 is greater than the outer diameter of the receiving cylinder 6. An adjustable rotating support mechanism for supporting the receiving cylinder 6 is provided below the notch 23.

[0032] In some specific implementation plans, combined with Figure 3 , Figure 11 and Figure 12 As shown, the adjustable rotating support mechanism includes a U-shaped rotating frame 32 and a limiting guide rail mechanism. The U-shaped rotating frame 32 is fitted below the notch 23 and is rotatably connected to the bottom of the support plate 9 via a rotating shaft. The U-shaped rotating frame 32 can deflect in the vertical direction. The width of the U-shaped rotating frame 32 is smaller than the width of the notch 23. Both ends of the U-shaped rotating frame 32 are fixedly connected to support blocks 31 for contacting the universal wheel assembly 30. When the U-shaped rotating frame 32 is in a horizontal position, the upper sides of the support blocks 31 at both ends are flush with the upper surface of the support plate 9. Both support blocks 31 are rotatably connected to rollers 33 that slide in cooperation with the limiting guide rail mechanism.

[0033] The limiting guide rail mechanism consists of two sets located on both sides below the support plate 9. Each set includes a linear guide rail 22 and a downward-bent guide rail 21. The linear guide rail 22 is fixedly connected to the support base 5 via a bracket and is horizontally positioned below the support plate 9. The downward-bent guide rail 21 is fixedly connected to the end of the linear guide rail 22 away from the discharge guide plate 2, and the downward-bent guide rail 21 is bent downwards. Two rollers 33 are respectively mounted on the corresponding linear guide rails 22. During sampling and receiving, the rollers 33 are mounted on the linear guide rails 22, thus keeping the U-shaped rotating frame 32 in a horizontal position. Therefore, the support block 31 at the end of the U-shaped rotating frame 32 is positioned within the notch 23, facilitating... The receiving cylinder 6 is rotated to the notch 23 and kept vertical. When the electric telescopic rod 8 retracts, it drives the support plate 9 to move laterally away from the discharge guide plate 2. The roller 33 rolls along the linear guide rail 22, keeping the U-shaped rotating frame 32 and the support block 31 in a horizontal position. When the roller 33 rolls to the position of the lower curved guide rail 21, the lower curved guide rail 21 bends downward. As the roller 33 rolls along the lower curved guide rail 21, the U-shaped rotating frame 32 begins to deflect downward. The support block 31 supporting the receiving cylinder 6 below the notch 23 deflects synchronously. The receiving cylinder 6 then deflects relative to the U-shaped fixed frame 25 by relying on the connecting rotating block 26. As the connecting block 26 rotates to a horizontal position and engages with the positioning block 27, the receiving cylinder 6 rotates to a horizontal position, facilitating the pouring out of the concrete inside. At this time, the U-shaped rotating frame 32 rotates to a vertical position, and the rollers 33 on the support block 31 are aligned laterally with the end of the lower curved guide rail 21. When the electric telescopic rod 8 extends again, pushing the support plate 9 to move the distributed receiving cylinders 6 laterally closer to the discharge guide plate 2, the support block 31 at the end of the U-shaped rotating frame 32 moves laterally and contacts the end of the lower curved guide rail 21 through the rollers 33. Then, due to the squeezing and guiding effect of the lower curved guide rail 21, the U-shaped rotating frame 32 begins to deflect towards a horizontal position. During the deflection process, the support block 31 at the end of the U-shaped rotating frame 32 moves laterally and contacts the end of the lower curved guide rail 21 through the rollers 33. Then, due to the squeezing and guiding effect of the lower curved guide rail 21, the U-shaped rotating frame 32 begins to deflect towards a horizontal position. The support block 31 abuts against one side of the receiving cylinder 6, which is still in a horizontal position. As the U-shaped rotating frame 32 gradually deviates to a horizontal position, the support block 31 pushes the receiving cylinder 6, causing it to rotate. Finally, when the roller 33 rolls onto the linear guide rail 22, the U-shaped rotating frame 32 rotates to a horizontal position, and the receiving cylinder 6 also flips back to a vertical position. During the rotation and reset of the receiving cylinder 6 at the notch 23, the linkage baffle 29 connected to the bottom of the rotating column 24 has not yet pressed against the one-way limit block 35, so it will not affect the rotation and reset of the receiving cylinder 6 after the concrete is poured. As the electric telescopic rod 8 continues to extend, the rotating column 24 will rotate, and a new receiving cylinder 6 will be switched to receive and sample the material.

[0034] In some specific implementation schemes, to facilitate the full ejection of concrete from the receiving cylinder 6, such as... Figure 8 , Figure 18 and Figure 19As shown, a connecting guide rod 18 is fixedly connected to the side of the support plate 9 near the discharge guide plate 2. A connecting crossbar 20 is fixedly connected to the telescopic end of the electric telescopic rod 8. The connecting guide rod 18 passes through the connecting crossbar 20, and the two can slide relative to each other. A compressible second limiting spring 19 is connected between the support plate 9 and the connecting crossbar 20. A push rod 42 is horizontally fixedly connected below the connecting crossbar 20. The position of the push rod 42 is lower than the position of the one-way limiting block 35. The one-way limiting block 35 and the support fixing frame 34 are lower than the position of the linear guide rail 22, and their movements will not interfere with each other. Each receiving cylinder 6 is a through cylindrical part, and a sliding scraper 15 is slidably connected inside each receiving cylinder 6. An elastic telescopic component 17 is connected between the sliding scraper 15 and the corresponding receiving cylinder 6. 17 consists of a spring and a telescopic rod. The telescopic rod connects the sliding scraper 15 and the receiving cylinder 6. The spring connects the sliding scraper 15 and the fixed end of the telescopic rod. It should be noted that the telescopic rod can be a multi-section telescopic component, that is, it is formed by multiple telescopic sleeves connected in sequence. The diameters of the telescopic sleeves are in an arithmetic sequence, and the difference is exactly the difference between the inner and outer diameters of the sleeves. Each telescopic sleeve end is provided with a limit piece to prevent slippage. The push rod 42 is correspondingly engaged with the sliding scraper 15. Whenever the receiving cylinder 6 at the notch 23 position rotates to the horizontal position, the push rod 42 is exactly aligned with the sliding scraper 15 inside the receiving cylinder 6 at that position. An auxiliary baffle 40 is fixedly connected to the support base 5. An abutment plate 28 that cooperates with the auxiliary baffle 40 is fixedly connected to the bottom side of each receiving cylinder 6 away from the U-shaped fixing frame 25. Whenever the receiving cylinder 6 at the notch 23 flips, its connected abutment plate 28 aligns laterally with the auxiliary baffle 40. As the electric telescopic rod 8 continues to retract, the abutment plate 28 abuts against the auxiliary baffle 40, preventing the receiving cylinder 6 and the support plate 9 from moving forward. At this time, the electric telescopic rod 8 continues to retract, causing the connecting crossbar 20 to slide along the connecting guide rod 18 and compress the second limit spring 19. At this time, the push rod 42 moves forward with the connecting crossbar 20 and approaches the flipped receiving cylinder 6. Since the push rod 42 is aligned with the sliding scraper 15 inside the flipped receiving cylinder 6, the push rod 42 penetrates into the receiving cylinder 6 and pushes the sliding scraper 15, causing the sliding scraper 15 to move laterally along the receiving cylinder 6, which facilitates the scraping off of the concrete material attached to the inner wall, reducing residue and avoiding affecting the final sample volume.

[0035] It should be noted that the inner wall of the receiving cylinder 6 and the end face of the sliding scraper 15 can be coated with a lubricant for smoothing. Steel materials can be used to reduce the amount of concrete adhering.

[0036] In other specific implementations, to facilitate further discharge of the attached concrete material, refer to Figure 20As shown, a pendulum 43 is provided on the side of the sliding scraper 15 near the push rod 42, and the hammer handle end of the pendulum 43 is movably connected to the sliding scraper 15 through a spring-loaded hinge. The initial position of the pendulum 43 is attached to the sliding scraper 15, and it can remain attached even when the receiving cylinder 6 is in a vertical position. A protruding plate 46 is fixedly connected to the hammer handle end of the pendulum 43. An elastic winding drum 44 is also rotatably provided on the sliding scraper 15. Specifically, a bracket can be fixedly installed on the sliding scraper 15. The winding drum of the elastic winding drum 44 is rotatably connected to the bracket through a rotating shaft, and a coil spring is installed between the rotating shaft and the bracket. A pull line 45 is wound on the elastic winding drum 44, and the end of the pull line 45 is fixedly connected to the inner wall of the receiving cylinder 6. A cam 47 that cooperates with the protruding plate 46 is also coaxially fixedly connected to the elastic winding drum 44. Both the sliding scraper 15 and the receiving cylinder 6 are elastic metal bodies.

[0037] When the push rod 42 pushes the sliding scraper 15 to slide and scrape the concrete material along the inside of the receiving cylinder 6, the elastic winding drum 44 moves together with the sliding scraper 15, and the pull wire 45 is pulled out from the elastic winding drum 44, which causes the elastic winding drum 44 to rotate. The rotating elastic winding drum 44 drives the cam 47 to rotate. During the rotation of the cam 47, it can continuously push the convex plate 46, which causes the pendulum 43 to deflect. Whenever the convex plate 46 is pushed, the pendulum 43 can deflect and disengage from the sliding scraper 15. When the cam 47 disengages from the convex plate 46, the pendulum 43 swings back to its original position by relying on the rebound force and hits the sliding scraper 15, causing it to vibrate. This helps to help the concrete material attached to the sliding scraper 15 to fall off. At the same time, the vibration can also be transmitted to the receiving cylinder 6, causing the attached concrete material to fall off.

[0038] In some specific implementation plans, since the concrete samples taken from each section need to be poured out and mixed before slump and other tests are performed, therefore, in combination with... Figure 1 and Figure 16 As shown, a support slide rail 41 is fixedly connected to the support base 5, and a receiving plate 7 is slidably connected to the support slide rail 41. Multiple mixing troughs 36 corresponding to the receiving cylinder 6 are evenly distributed on the receiving plate 7. A horizontal bar 37 is horizontally fixedly connected to the side of the receiving plate 7 near the support plate 9. Multiple linkage triangular inclined blocks 38 are evenly distributed on the horizontal bar 37. A vertical shaft is rotatably connected to the bottom side of the support plate 9, and a disc spring is connected between the vertical shaft and the support plate 9. An inclined push rod 39 that cooperates with the linkage triangular inclined block 38 is fixedly connected to the bottom of the vertical shaft. The inclined push rod 39 and the horizontal bar 37 are in the same horizontal plane and form a certain angle with the horizontal bar 37.

[0039] Whenever the support plate 9 approaches the receiving plate 7 under the retraction drive of the electric telescopic rod 8, it drives the inclined push rod 39 to move synchronously towards the horizontal bar 37. During the flipping process of the receiving cylinder 6 at the notch 23, the end of the inclined push rod 39 abuts against the two adjacent linked triangular inclined blocks 38 at the corresponding position, and the right-angle side of the linked triangular inclined block 38 is squeezed and pushed. In this way, the horizontal bar 37 can be pushed to move the receiving plate 7 along the support slide rail 41, so that the corresponding mixing trough 36 can be moved to the bottom of the flipped receiving cylinder 6 to catch the poured concrete.

[0040] It should be noted that when receiving material through receiving cylinder 6 for the first time and resetting it, receiving cylinder 6 containing concrete cannot directly reach the position of notch 23. Only when the second concrete sampling is performed will the first receiving cylinder 6 rotate to the position of notch 23. Therefore, in order to ensure that the corresponding mixing trough 36 moves into place when the receiving cylinder 6 for the first sampling is unloading, the length of the horizontal bar 37 needs to exceed the receiving plate 7 by a certain length. This ensures that when the first sampling is completed and the support plate 9 is retracted, the lateral movement of the receiving plate 7 will not directly cause the first mixing trough 36 to move into place.

[0041] Additionally, it should be noted that the width of the mixing trough 36 should be large enough to ensure that when the corresponding receiving cylinder 6 is tilted and dumping material, even if the inclined push rod 39 does not push the corresponding mixing trough 36 into place completely, a portion of the corresponding mixing trough 36 will already be in position to receive the poured concrete when the receiving cylinder 6 begins to tilt and dump material.

[0042] A working method for an anti-erosion fair-faced concrete preparation device, the specific steps of which are as follows: The first step is to pour the raw materials for preparing erosion-resistant fair-faced concrete into mixing chamber 1 and prepare concrete slurry by mixing in mixing chamber 1. The second step is to discharge the mixed concrete slurry into the storage box 4 through the discharge guide plate 2. Third, during the unloading process, the receiving cylinder 6 of the automatic rotating receiving mechanism moves along the circumference of the edge of the support plate 9 by means of the rotating drive mechanism, and passes through the sampling position in sequence to take samples at different stages. The concrete samples in each receiving cylinder 6 are poured out in sequence by the flipping mechanism for uniformity testing.

[0043] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios: First, the required concrete slurry is prepared by mixing in the mixing chamber 1. Then, it is discharged through the discharge guide plate 2. During the discharge process, the electric telescopic rod 8 is extended to drive the support plate 9 to move laterally. The support plate 9 then drives the distributed receiving cylinders 6 to move laterally. The receiving cylinder 6 that is aligned with the sampling port moves and docks below the sampling port to catch the falling concrete slurry.

[0044] After a certain amount of concrete slurry is loaded into the receiving cylinder 6 at the receiving position, the electric telescopic rod 8 is retracted, causing the distributed receiving cylinders 6 to move horizontally and detach from under the discharge guide plate 2 via the support plate 9. During the detachment process, the distributed linkage baffles 29 move laterally with the support plate 9. When they move to the position of the one-way limit block 35, one of the linkage baffles 29 contacts the one-way limit block 35. During this process, the one-way limit block 35 can deflect relative to the support frame 34, meaning that the linkage baffles 29 will not cause the rotating column 24 to deflect. Furthermore, when the distributed linkage baffles 29 have completely passed the position of the one-way limit block 35, the one-way limit block 35 will rotate back to its original position by the rebound force of the spring hinge. When the electric... When the telescopic rod 8 extends again, causing the support plate 9 to move laterally closer to the discharge guide plate 2, the distributed linkage baffles 29 pass through the position of the one-way limiting block 35 again. At this time, the one-way limiting block 35 cannot deflect relative to the support fixing frame 34, so the linkage baffles 29 are subjected to the squeezing reaction force. The linkage baffles 29 drive the connected rotating column 24 to rotate, and the rotating column 24 drives the distributed receiving cylinders 6 to rotate. When the distributed linkage baffles 29 have completely passed the position of the one-way limiting block 35, the next unused empty receiving cylinder 6 rotates to the position that matches the sampling receiving port, making it convenient to perform the second stage of sampling through the second receiving cylinder 6. In this way, the three different receiving cylinders 6 can be used to perform segmented sampling in different discharge sections.

[0045] In addition to the first complete extension and retraction action of the electric telescopic rod 8, when the electric telescopic rod 8 extends for the second time, the rotating column 24 can drive the distributed receiving cylinders 6 to deflect along the support plate 9, thereby enabling the receiving cylinder 6 of the first sampling to rotate to the position of the notch 23. When the electric telescopic rod 8 retracts again, causing the support plate 9 to move laterally away from the discharge guide plate 2, the roller 33 rolls along the linear guide rail 22, keeping the U-shaped rotating frame 32 and the support block 31 in a horizontal position. When the roller 33 rolls to the position of the lower curved guide rail 21, the lower curved guide rail 21 bends downward. As the roller 33 rolls along the lower curved guide rail 21, the U-shaped rotating frame 32 begins to deflect downward. The support block 31, which is supported below the receiving cylinder 6 at the notch 23, deflects synchronously. The receiving cylinder 6 then deflects relative to the U-shaped fixed frame 25 by the connecting rotating block 26. Finally, when the connecting rotating block 26 rotates to a horizontal position and is in contact with the positioning stop 27, the receiving cylinder 6 rotates to a horizontal position, making it convenient to pour out the concrete in the cylinder. At this time, the U-shaped rotating frame 32 rotates to a vertical position, and the roller 33 on the support block 31 is exactly aligned with the end of the lower curved guide rail 21. The ends are aligned laterally. In addition, after the receiving cylinder 6 at the notch 23 position flips over, the connecting contact plate 28 is aligned laterally with the auxiliary baffle 40. As the electric telescopic rod 8 continues to retract, the contact plate 28 abuts against the auxiliary baffle 40, which prevents the receiving cylinder 6 and the support plate 9 from moving forward. At this time, the electric telescopic rod 8 continues to retract, which drives the connecting crossbar 20 to slide along the connecting guide rod 18 and compresses the second limit spring 19. At this time, the push rod 42 moves forward with the connecting crossbar 20 and approaches the flipped receiving cylinder 6. Since the push rod 42 is aligned with the sliding scraper 15 inside the flipped receiving cylinder 6, the push rod 42 enters the receiving cylinder 6 and pushes the sliding scraper 15, so that the sliding scraper 15 moves laterally along the receiving cylinder 6, which facilitates the scraping off of the concrete material attached to the inner wall, reduces residue, and avoids affecting the final sample volume.

[0046] Furthermore, whenever the support plate 9 approaches the receiving plate 7 under the retraction drive of the electric telescopic rod 8, it drives the inclined push rod 39 to move synchronously towards the horizontal bar 37. During the flipping process of the receiving cylinder 6 at the notch 23, the end of the inclined push rod 39 abuts against the two adjacent linked triangular inclined blocks 38 at the corresponding position, and the right-angle side of the linked triangular inclined block 38 is squeezed and pushed. In this way, the horizontal bar 37 can be pushed to move the receiving plate 7 along the support slide rail 41, so that the corresponding mixing trough 36 can be moved to the bottom of the flipped receiving cylinder 6, so as to catch the poured concrete material. This allows the concrete material taken in sections to be poured into the corresponding height mixing trough 36 for mixing, which is convenient for subsequent testing and processing.

[0047] When the electric telescopic rod 8 extends again, pushing the support plate 9 to move the distributed receiving cylinders 6 laterally closer to the discharge guide plate 2, the support block 31 at the end of the U-shaped rotating frame 32 moves laterally and contacts the end of the lower curved guide rail 21 through the roller 33. Then, due to the squeezing and guiding action of the lower curved guide rail 21, the U-shaped rotating frame 32 begins to deflect to a horizontal position. During the deflection process, the support block 31 abuts against one side of the receiving cylinder 6, which is still in a horizontal position. As the U-shaped rotating frame 32 gradually deflects to a horizontal position, the support block 31 pushes... The receiving cylinder 6 is rotated, and when the roller 33 rolls onto the linear guide rail 22, the U-shaped rotating frame 32 rotates to a horizontal position, and the receiving cylinder 6 also flips back to a vertical position. During the rotation and reset of the receiving cylinder 6 at the notch 23, the linkage baffle 29 connected to the bottom of the rotating column 24 has not yet pressed against the one-way limit block 35, so it will not affect the rotation and reset of the receiving cylinder 6 after the concrete is poured. As the electric telescopic rod 8 continues to extend, the rotating column 24 will rotate, and a new receiving cylinder 6 will be switched to receive and sample the material.

[0048] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An anti-erosion fair-faced concrete preparation device, comprising a mixing chamber (1), a discharge guide plate (2), and a storage tank (4), wherein the discharge guide plate (2) is used to guide concrete out of the mixing chamber (1), characterized in that, It also includes a segmented sampling mechanism; The segmented sampling mechanism includes an automatic rotating receiving mechanism and a flipping mechanism. The automatic rotating receiving mechanism includes a support plate (9) and a receiving cylinder (6). Multiple receiving cylinders (6) are provided and are circumferentially distributed on the support plate (9). The support plate (9) is provided with a rotating drive mechanism for driving the receiving cylinder (6) to move circumferentially along the edge of the support plate (9). Each receiving cylinder (6) is equipped with a flipping mechanism, which is used to drive the receiving cylinder (6) to automatically flip and pour materials.

2. The erosion-resistant fair-faced concrete preparation equipment according to claim 1, characterized in that, It also includes an electric telescopic rod (8) and a support base (5). The electric telescopic rod (8) is fixedly installed on one side of the discharge guide plate (2) through the support base (5). The support plate (9) is connected to the telescopic end of the electric telescopic rod (8). The discharge guide plate (2) is provided with a sampling discharge port, and the sampling discharge port is aligned with one of the receiving cylinders (6).

3. The erosion-resistant fair-faced concrete preparation equipment according to claim 1, characterized in that, The rotary drive mechanism includes a rotating column (24), a linkage baffle (29), a support frame (34), and a one-way limiting block (35). The rotating column (24) is rotatably connected to the center of the support plate (9). The receiving cylinder (6) rotates synchronously with the rotating column (24). Multiple linkage baffles (29) are provided and are fixedly connected to the bottom of the rotating column (24) at equal intervals around the circumference. The linkage baffles (29) are distributed correspondingly to the receiving cylinder (6). The one-way limiting block (35) is movably connected to the support frame (34) through a spring-loaded hinge. The one-way limiting block (35) and the linkage baffles (29) are correspondingly engaged.

4. The erosion-resistant fair-faced concrete preparation equipment according to claim 1, characterized in that, Each set of the flipping mechanism includes a U-shaped fixing frame (25), a connecting rotating block (26), and a positioning block (27). The U-shaped fixing frame (25) rotates with the rotation drive mechanism. The connecting rotating block (26) is fixedly connected to one side of the bottom of the corresponding receiving cylinder (6), and the connecting rotating block (26) is also rotatably connected to the U-shaped fixing frame (25). The positioning block (27) is fixedly connected to the U-shaped fixing frame (25) and cooperates with the corresponding connecting rotating block (26). A set of universal wheels (30) is installed on the other side of the bottom of each receiving cylinder (6). A notch (23) is opened on the side of the support plate (9) away from the discharge guide plate (2). An adjustable rotating support mechanism for supporting the receiving cylinder (6) is provided below the notch (23).

5. The erosion-resistant fair-faced concrete preparation equipment according to claim 4, characterized in that, The adjustable rotating support mechanism includes a U-shaped rotating frame (32) and a limiting guide rail mechanism; the U-shaped rotating frame (32) is fitted below the notch (23) and is rotatably connected to the bottom of the support plate (9). Both ends of the U-shaped rotating frame (32) are fixedly connected to support blocks (31) for contacting the universal wheel assembly (30). Both support blocks (31) are rotatably connected to rollers (33) that slide in cooperation with the limiting guide rail mechanism.

6. The erosion-resistant fair-faced concrete preparation equipment according to claim 5, characterized in that, The limiting guide rail mechanism is provided in two sets and is located on both sides below the support plate (9). Each set of the limiting guide rail mechanism includes a linear guide rail (22) and a lower curved guide rail (21). The linear guide rail (22) is fixedly connected to the support base (5). The lower curved guide rail (21) is fixedly connected to the end of the linear guide rail (22) away from the discharge guide plate (2). The two rollers (33) are respectively mounted on the corresponding linear guide rail (22).

7. The erosion-resistant fair-faced concrete preparation equipment according to claim 2, characterized in that, A connecting guide rod (18) is fixedly connected to the side of the support plate (9) near the discharge guide plate (2). A connecting crossbar (20) is fixedly connected to the telescopic end of the electric telescopic rod (8). The connecting guide rod (18) passes through the connecting crossbar (20). A second limiting spring (19) is connected between the support plate (9) and the connecting crossbar (20). A push rod (42) is fixedly connected horizontally below the connecting crossbar (20). Each receiving cylinder (6) is a through cylindrical component. Furthermore, each of the receiving cylinders (6) is slidably connected to a sliding scraper (15), and an elastic telescopic member (17) is connected between the sliding scraper (15) and the corresponding receiving cylinder (6). The push rod (42) is correspondingly engaged with the sliding scraper (15). An auxiliary baffle (40) is fixedly connected to the support base (5), and an abutment plate (28) that engages with the auxiliary baffle (40) is fixedly connected to the side of the bottom of each receiving cylinder (6) away from the U-shaped fixing frame (25).

8. The erosion-resistant fair-faced concrete preparation equipment according to claim 7, characterized in that, A pendulum (43) is provided on the side of the sliding scraper (15) near the push rod (42), and the hammer handle end of the pendulum (43) is movably connected to the sliding scraper (15) through a spring hinge. A protruding plate (46) is fixedly connected to the hammer handle end of the pendulum (43). An elastic winding drum (44) is also rotatably provided on the sliding scraper (15). A pull wire (45) is wound on the elastic winding drum (44), and the end of the pull wire (45) is fixedly connected to the inner wall of the receiving cylinder (6). A cam (47) that cooperates with the protruding plate (46) is also coaxially fixedly connected to the elastic winding drum (44). Both the sliding scraper (15) and the receiving cylinder (6) are elastic metal bodies.

9. The erosion-resistant fair-faced concrete preparation equipment according to claim 2, characterized in that, A support slide rail (41) is fixedly connected to the support base (5). A receiving plate (7) is slidably connected to the support slide rail (41). Multiple mixing troughs (36) corresponding to the receiving cylinder (6) are evenly distributed on the receiving plate (7). A horizontal bar (37) is fixedly connected to the side of the receiving plate (7) near the support plate (9). Multiple linkage triangular inclined blocks (38) are evenly distributed on the horizontal bar (37). A vertical shaft is rotatably connected to the bottom side of the support plate (9), and a disc spring is connected between the vertical shaft and the support plate (9). An inclined top rod (39) that cooperates with the linkage triangular inclined block (38) is fixedly connected to the bottom of the vertical shaft.

10. A method for operating an anti-erosion fair-faced concrete preparation device, used to operate the anti-erosion fair-faced concrete preparation device according to claim 1, characterized in that, The specific steps are as follows: First step: First, pour the raw materials for preparing erosion-resistant fair water concrete into the mixing chamber (1), and prepare concrete slurry by mixing in the mixing chamber (1); The second step is to discharge the mixed concrete slurry into the storage box (4) through the discharge guide plate (2); The third step is that during the unloading process, the receiving cylinder (6) of the automatic rotating receiving mechanism moves along the circumference of the support plate (9) by the rotation drive mechanism, passes through the sampling position in sequence to take samples at different stages, and pours out the concrete samples in each receiving cylinder (6) in sequence by the flipping mechanism to perform uniformity testing.

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