Concrete strength detection line

Abstract

The invention relates to the field of concrete detection, and particularly discloses a concrete strength detection line which comprises a support assembly, a feeding mechanism, a stirring barrel, a sampling mechanism, a sample box and a strength detection mechanism, raw materials are quantitatively conveyed into the stirring barrel through the feeding mechanism, the raw materials and water are mixed into concrete slurry through the stirring barrel, and the concrete slurry is injected into a mold through a conveying pump; concrete samples are prepared and stored through a rotary disc and a plurality of molds in the sampling mechanism, a sample box is used for storing the concrete samples, and the strength detection mechanism conducts accurate strength detection on the concrete samples through a mechanical arm and an abutting assembly. The device achieves the effects of high automation degree, high detection precision and simple and convenient operation.

Description

Technical Field

[0001] The present application relates to the field of concrete testing, and in particular to a concrete strength testing line. Background Art

[0002] Concrete strength testing is an important part of construction project quality control. In the process of concrete quality control, construction sites and ready-mixed concrete companies need to estimate concrete strength by early age strength in order to predict the quality of concrete and achieve the purpose of monitoring concrete quality.

[0003] In the related art, the early age strength estimation formula f is usually used. 28 =f n lg 28 / Test the estimated concrete strength at early age, collect the concrete strength at 3d, 7d and 28d for analysis. Use traditional / , calculate with 3d and 7d strength, take 16 sets of data for each strength grade according to the mix ratio, take the measured values ​​of 3d and 7d concrete, calculate the 28d strength value, and get the estimated value of 28d strength from the 3d and 7d early strength.

[0004] The traditional early age strength estimation formula has been established for nearly 50 years. The raw materials and mix design methods have changed greatly in the past 50 years, especially the development of cement, the development of admixtures and the current widespread use of machine-made sand to prepare concrete, which is far behind the traditional concrete. Therefore, the early age strength estimation formula needs to be revised. By observing the strength errors of concrete of various strength grades, it is found that there is a certain regularity in the errors of the concrete mixes of the benchmark concrete (pure cement), single fly ash, single slag powder, and double fly ash and slag powder, that is, the strength error of the benchmark concrete is already very large, and the error rate decreases with the increase of fly ash content, and the error rate also decreases with the increase of slag powder content. Based on this rule, the benchmark concrete is first revised, and then the fly ash and slag powder content are revised on the basis of the revision of the benchmark concrete.

[0005] The above-mentioned related technologies have the following defects: when comparing the strength errors of concrete of different strength grades, it is necessary to perform mix proportions and strength tests on concrete of different grades. However, currently, the mix proportions and strength tests on concrete of different grades are performed manually, which is troublesome and reduces the efficiency of concrete strength testing. Summary of the invention

[0006] In order to improve the detection efficiency of concrete strength, the present application provides a concrete strength detection line.

[0007] The concrete strength testing line provided in this application adopts the following technical solution: A concrete strength testing line comprises a support assembly, a feeding mechanism, a mixing barrel, a sampling mechanism, a sample box and a strength testing mechanism, wherein the feeding mechanism, the mixing barrel, the sampling mechanism, the sample box and the strength testing mechanism are sequentially mounted on the support assembly from the feeding end to the discharging end of the support assembly; The feeding mechanism is used to quantitatively deliver a variety of raw materials into the mixing barrel; The mixing barrel is used to mix the raw materials with water into concrete slurry, and a delivery pump is provided at the discharge end; The sampling mechanism comprises a turntable and a plurality of molds, wherein the turntable is rotatably connected to the bracket assembly, and the plurality of molds are mounted on the turntable along the circumference of the turntable; The delivery pump is used to inject concrete slurry into the mold, and the concrete slurry solidifies into a concrete sample in the mold; the sample box is used to store the concrete sample; The strength detection mechanism is used to perform strength detection on the concrete sample.

[0008] By adopting the above technical scheme, the feeding mechanism can realize the accurate quantitative delivery of multiple raw materials according to the ratio requirements, ensure the accurate ratio of raw materials required for each grade of concrete, and inject the corresponding required amount of water into the mixing barrel according to the amount of raw materials. The mixing barrel mixes the raw materials and water into a uniform concrete slurry, and the delivery pump arranged at its discharge end can accurately deliver the concrete slurry into the mold, and through the rotation of the turntable, multiple molds are positioned with the delivery pump in turn, so that the delivery pump injects the concrete slurry into multiple molds in turn. Multiple molds filled with concrete slurry are placed in a sample box for storage, and labels are affixed to the outer surface of the mold to record the number of days of solidification of the concrete. Then, according to the actual experimental requirements, the mold of the corresponding number of days is selected, and after the concrete sample is demoulded, it is moved to the strength detection mechanism to perform strength detection on the concrete sample. In this application, by integrating the feeding mechanism, the mixing barrel, the sampling mechanism, the sample box and the strength detection mechanism, the full process automation of concrete strength detection is realized, which significantly improves the detection efficiency and accuracy, and reduces manual intervention and labor intensity.

[0009] Optionally, the feeding mechanism includes a conveyor belt and a plurality of spiral quantitative feeders, and the conveyor belt is installed on the bracket assembly and is used to transport raw materials into the mixing barrel; A plurality of the spiral quantitative feeders are installed at the feeding end of the conveyor belt, and are respectively used to quantitatively convey a raw material to the conveyor belt.

[0010] By adopting the above technical solutions, the conveyor belt can achieve continuous and stable material transportation, ensure the stability and uniformity of raw material supply, and improve production efficiency. Multiple spiral quantitative feeders can accurately control the delivery amount of each raw material to ensure the accuracy of the mixing ratio.

[0011] Optionally, the mixing barrel comprises a barrel body, a barrel cover, mixing blades and a feed hopper, and the barrel body is mounted on the bracket assembly; The barrel cover is installed at the barrel mouth of the barrel body; The stirring blade is arranged in the barrel body and is rotatably connected to the barrel cover; The feed hopper is installed on the side wall of the barrel and connected to the discharge end of the conveyor belt; The delivery pump is installed at the bottom of the barrel body.

[0012] By adopting the above technical solution, the barrel is installed on the bracket assembly to ensure the stability of the entire mixing process. The barrel cover is installed at the barrel mouth of the barrel to prevent the raw materials from splashing during the mixing process. The mixing blades are arranged in the barrel and are rotatably connected to the barrel cover to achieve efficient and uniform mixing effect. The feed hopper is installed on the side wall of the barrel and connected to the discharge end of the conveyor belt to ensure the continuous supply of raw materials and improve production efficiency. The delivery pump is installed at the bottom of the barrel, which can smoothly deliver the mixed concrete slurry to the mold, ensuring the quality and consistency of the concrete sample.

[0013] Optionally, the mold includes a shaping tube, an end cover, a side discharge trough and an isolation paper mold, the shaping tube is arranged vertically; the end cover is installed at the lower end of the shaping tube and is also detachably connected to the turntable; The side discharge trough is arranged at the upper end of the side wall of the shaping tube; The isolation paper mold is arranged in the shaping tube and the side discharge trough, and is in contact with the inner wall of the shaping tube and the inner wall of the side discharge trough.

[0014] By adopting the above technical solution, the shaping tube is arranged vertically to ensure that the concrete slurry can be evenly filled and improve the quality of sample molding. The end cover is detachably connected to the lower end of the shaping tube and the turntable, which is convenient for quick mold replacement and demolding of concrete samples. The side discharge trough is arranged at the upper end of the side wall of the shaping tube to facilitate the discharge of excess concrete slurry and improve sample accuracy. The isolation paper mold is in close contact with the shaping tube and the inner wall of the side discharge trough. The concrete slurry solidifies in the isolation paper mold to form a concrete sample, avoiding the connection between the concrete and the shaping tube, which is conducive to the demolding of the concrete sample.

[0015] Optionally, the rotating disk includes a carrying ring and a rotating tube, and the rotating tube is rotatably connected to the bracket assembly; The carrying ring is coaxially connected to the rotating tube; A plurality of slots are arranged on the circumference of the bearing ring, and a plug is arranged on each end cover. The plurality of plugs are arranged corresponding to the plurality of slots, and the plugs are inserted into the corresponding slots.

[0016] By adopting the above technical solution, the rotating tube drives the carrying ring to rotate, so that multiple molds are matched with the conveying pump in sequence. The plug and the slot are matched, so that the mold can be quickly disassembled and assembled on the carrying ring.

[0017] Optionally, a tapered tube is connected between the carrying ring and the rotating tube, an end of the tapered tube with a larger diameter is coaxially connected to the inner hole of the rotating tube, and an end of the tapered tube with a smaller diameter is coaxially connected to the rotating tube; One end of the side discharge trough away from the shaping tube is located on the inner side of the carrying ring; The sampling mechanism also includes a piston and a nozzle. The piston is installed on the bracket assembly in a liftable manner and can be coaxial with one of the rotating tubes to squeeze excess concrete slurry in the rotating tube into the side discharge trough.

[0018] By adopting the above technical solution, after concrete is poured into the rotating tube, the rotating tube can move to be coaxial with the piston and pause during the rotation of the bearing ring, and then the piston descends into the rotating tube to squeeze the concrete above the bottom of the side discharge trough into the side discharge trough. The side discharge trough discharges excess concrete into the conical tube and then discharges it in a directional manner through the rotating tube.

[0019] Optionally, the sampling mechanism further comprises a nozzle mounted on the bracket assembly, and the nozzle is used for spraying water onto the inner wall of the conical tube.

[0020] By adopting the above technical solution, the nozzle is connected to a water source such as tap water, and water is sprayed toward the inner wall of the conical tube to clean the concrete on the inner wall of the conical tube.

[0021] Optionally, a first box door and a second box door are respectively provided at both ends of the length direction of the sample box; The sample box is provided with a first sample storage plate and a second sample storage plate located below the first sample storage plate; In the length direction of the sample box, the first sample storage plate and the second sample storage plate are both slidably connected to the sample box; the first sample storage plate is provided with a plurality of first sample storage slots, and the second sample storage plate is provided with a plurality of second sample storage slots, and the plurality of second sample storage slots are arranged corresponding to the plurality of first sample storage slots.

[0022] By adopting the above technical solution, the sample box has a first box door and a second box door arranged opposite to each other, which is convenient for operators to quickly store and retrieve concrete samples, thereby improving work efficiency. The first sample storage plate stores the mold filled with concrete slurry through the first sample storage tank. After the concrete slurry solidifies into a concrete sample, the concrete sample is demoulded and stored in the second sample storage tank.

[0023] Optionally, the strength detection mechanism includes a manipulator and a pressing assembly, the manipulator is mounted on the bracket assembly, the pressing assembly includes a vertical rod, a pressure-bearing member, a pressure sensor and a rangefinder, one end of the vertical rod is connected to the manipulator, and the other end of the vertical rod is connected to the pressure sensor; The pressure-bearing member is connected to the force-bearing surface of the pressure sensor; The rangefinder is mounted on the pressure-bearing member on the side of the force-bearing surface of the pressure sensor; A pressure plate is provided directly below the strength detection mechanism, and a guide rail is provided on the pressure plate along the length direction of the sample box. One end of the guide rail extends to the interior of the sample box, and the second sample storage plate is slidably connected to the sample box via the guide rail.

[0024] By adopting the above technical solution, when the second sample storage plate carrying the concrete sample slides directly along the guide rail to the bottom of the strength detection mechanism, the manipulator drives the pressure-bearing member to compress the concrete sample on the second sample storage plate until the concrete sample is broken. The distance meter detects the distance between the pressure-bearing member and the second sample storage plate. During the compression of the concrete sample, if the concrete sample is not broken, the measurement value of the distance meter remains unchanged during the compression of the concrete sample. If the concrete sample is broken, the measurement value of the distance meter becomes smaller. At the moment when the value of the distance meter changes, the detection value of the pressure sensor is the maximum pressure value that the concrete sample can withstand.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. In this application, by integrating the feeding mechanism, mixing bucket, sampling mechanism, sample box and strength detection mechanism, the whole process of concrete strength detection is automated, which significantly improves the detection efficiency and accuracy and reduces manual intervention and labor intensity; 2. In this application, the feeding mechanism adopts a conveyor belt and multiple spiral quantitative feeders, which can accurately control the ratio of various raw materials and ensure the uniformity of concrete slurry, thereby improving the consistency and reliability of samples; 3. The sampling mechanism in this application is reasonably designed, and continuous sampling is achieved through a turntable and multiple molds. The piston and nozzle are used to ensure the integrity and uniformity of the sample. At the same time, excess concrete slurry can be cleaned in time, which is conducive to the cleaning of the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a structural diagram of the feeding mechanism; Figure 3 It is a schematic diagram of the structure of the mixing barrel and the sampling mechanism; Figure 4 It is a schematic diagram of the matching structure between the bearing ring, the mold, the piston and the lifting member; Figure 5 It is a schematic diagram of the structure of the sample box and the strength testing mechanism; Figure 6 is a schematic diagram of the structure of the sample box after the second sealing cover is removed; Figure 7 It is a partial structural diagram of the strength detection mechanism.

[0028] Reference numerals: 10. Bracket assembly; 1. Feeding mechanism; 11. Conveyor belt; 12. U-shaped baffle plate; 13. Spiral quantitative feeder; 2. Mixing barrel; 21. Barrel body; 22. Barrel cover; 23. Mixing blades; 24. Motor; 25. Feed hopper; 26. Delivery pump; 27. Discharge pipe; 3. Sampling organization; 31. turntable; 311. carrying ring; 312. conical tube; 313. rotating tube; 3101, slot; 32. mold; 321. shaping tube; 322. end cover; 323. side discharge chute; 324. isolation paper mold; 320, plug; 33. Piston; 331. Lifting member; 34. Nozzle; 35. driving assembly; 351. driven gear; 352. driving gear; 353. servo motor; 4. Robotic arm; 5. Sample box; 51. First box door; 52. Second box door; 53. First sample storage plate; 5301. First sample storage tank; 54. Second sample storage plate; 5401. Second sample storage tank; 55. Pressure plate; 551. Guide rail; 56. Temperature sensor; 57. Humidity sensor; 58. Hot air blower; 581. Cold air blower; 59. Humidifier; 591. Dehumidifier; 6. Strength detection mechanism; 61. Manipulator; 62. Pressing component; 621. Vertical rod; 622. Pressure-bearing part; 623. Pressure sensor; 624. Distance meter. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-7This application is described in further detail.

[0030] The present application embodiment discloses a concrete strength detection line. Figure 1 A concrete strength testing line includes a support assembly 10, a feeding mechanism 1, a mixing barrel 2, a sampling mechanism 3, a robotic arm 4, a sample box 5 and a strength testing mechanism 6. From the feeding end to the discharging end of the support assembly 10, the feeding mechanism 1, the mixing barrel 2, the sampling mechanism 3, the robotic arm 4, the sample box 5 and the strength testing mechanism 6 are sequentially installed on the support assembly 10.

[0031] Reference Figure 2 The feeding mechanism 1 is used for quantitatively conveying a variety of raw materials into the mixing barrel 2. The feeding mechanism 1 includes a conveyor belt 11 and a plurality of spiral quantitative feeders 13. The conveyor belt 11 is installed on the bracket assembly 10 and is used to convey raw materials into the mixing barrel 2. The plurality of spiral quantitative feeders 13 are all installed at the feeding end of the conveyor belt 11, and are respectively used to quantitatively convey a kind of raw material to the conveyor belt 11. The plurality of spiral quantitative feeders 13 can accurately control the conveying amount of each raw material to ensure the accuracy of the mixing ratio. A U-shaped baffle plate 12 is provided above the conveyor belt 11. The U-shaped baffle plate 12 is slidably connected to the conveying surface of the conveyor belt 11, and is used to surround the two sides of the width direction of the conveyor belt 11 and the feeding end, so that the raw materials on the conveyor belt 11 are not easily spilled out.

[0032] Reference Figure 1 and Figure 3 The mixing barrel 2 is used to mix the raw materials and water into concrete slurry, and a delivery pump 26 is provided at the discharge end. The sampling mechanism 3 includes a turntable 31 and a plurality of molds 32, the turntable 31 is rotatably connected to the bracket assembly 10, and the plurality of molds 32 are mounted on the turntable 31 along the circumference of the turntable 31. The delivery pump 26 is used to inject the concrete slurry into the mold 32, and the concrete slurry solidifies into a concrete sample in the mold 32. The mechanical arm 4 is used to move the mold 32 filled with the concrete slurry into the sample box 5. The sample box 5 is used to store the concrete sample. The strength detection mechanism 6 is used to perform strength detection on the concrete sample.

[0033] Reference Figure 1 , Figure 2 and Figure 3In the embodiment of the present application, the feeding mechanism 1 can realize the accurate quantitative delivery of multiple raw materials according to the ratio requirements, ensure the accurate ratio of raw materials required for each grade of concrete, and inject the corresponding required amount of water into the mixing barrel 2 according to the amount of raw materials. The mixing barrel 2 mixes the raw materials and water into a uniform concrete slurry, and the delivery pump 26 arranged at its discharge end can accurately deliver the concrete slurry into the mold 32, and through the rotation of the turntable 31, the multiple molds 32 are positioned with the delivery pump 26 in turn, so that the delivery pump 26 injects the concrete slurry into the multiple molds 32 in turn. The multiple molds 32 filled with concrete slurry are placed in the sample box 5 for storage, and labels are attached to the outer surface of the mold 32 to record the number of days of concrete solidification. Then, according to the actual experimental requirements, the mold 32 of the corresponding number of days is selected, and after the concrete sample is demoulded, it is moved to the strength detection mechanism 6 to perform strength detection on the concrete sample. In the present application, by integrating the feeding mechanism 1, the mixing barrel 2, the sampling mechanism 3, the sample box 5 and the strength detection mechanism 6, the whole process automation of concrete strength detection is realized, which significantly improves the detection efficiency and accuracy and reduces manual intervention and labor intensity.

[0034] Reference Figure 3 The mixing barrel 2 includes a barrel body 21, a barrel cover 22, a mixing blade 23 and a feed hopper 25. The barrel body 21 is installed on the bracket assembly 10. The barrel cover 22 is installed at the barrel mouth of the barrel body 21. The mixing blade 23 is arranged in the barrel body 21 and is rotatably connected to the barrel cover 22. The feed hopper 25 is installed on the side wall of the barrel body 21 and is connected to the discharge end of the conveyor belt 11. The delivery pump 26 is installed at the bottom of the barrel body 21.

[0035] Reference Figure 3 In the embodiment of the present application, the barrel body 21 is installed on the bracket assembly 10 to ensure the stability of the entire mixing process. The barrel cover 22 is installed at the barrel mouth of the barrel body 21 to prevent the raw materials from splashing during the mixing process. The mixing blade 23 is rotatably connected to the barrel cover 22 through the motor 24 to mix the raw materials and water. The feed hopper 25 is installed on the side wall of the barrel body 21 and is connected to the discharge end of the conveyor belt 11, which ensures the continuous supply of raw materials and improves production efficiency. The delivery pump 26 is installed at the bottom of the barrel body 21, which can smoothly deliver the mixed concrete slurry to the mold 32, ensuring the quality and consistency of the concrete sample. The discharge end of the delivery pump 26 is connected to the discharge pipe 27, which is used to directional output concrete slurry into the mold 32.

[0036] Reference Figure 3 and Figure 4The mold 32 includes a shaping tube 321, an end cover 322, a side discharge trough 323 and an isolation paper mold 324. The shaping tube 321 is arranged vertically. The end cover 322 is installed at the lower end of the shaping tube 321 and is also detachably connected to the turntable 31. The side discharge trough 323 is arranged at the upper end of the side wall of the shaping tube 321. The isolation paper mold 324 is arranged in the shaping tube 321 and the side discharge trough 323, and contacts the inner wall of the shaping tube 321 and the inner wall of the side discharge trough 323.

[0037] Reference Figure 3 and Figure 4 In the embodiment of the present application, the shaping tube 321 is arranged vertically to ensure that the concrete slurry can be evenly filled and improve the quality of sample molding. The end cap 322 is detachably connected to the lower end of the shaping tube 321 and the turntable 31, which is convenient for quickly replacing the mold 32 and demolding the concrete sample. The side discharge trough 323 is arranged at the upper end of the side wall of the shaping tube 321 to facilitate the discharge of excess concrete slurry and improve the sample accuracy. The isolation paper mold 324 is in close contact with the inner wall of the shaping tube 321 and the side discharge trough 323. The concrete slurry solidifies in the isolation paper mold 324 to form a concrete sample, avoiding the connection between the concrete and the shaping tube 321, which is conducive to the demolding of the concrete sample.

[0038] Reference Figure 3 and Figure 4 The rotating disk 31 includes a bearing ring 311 and a rotating tube 313, and the rotating tube 313 is rotatably connected to the bracket assembly 10. The bearing ring 311 is coaxially connected to the rotating tube 313. A plurality of slots 3101 are provided on the circumference of the bearing ring 311, and a plug 320 is provided on each end cover 322. The plurality of plugs 320 are correspondingly arranged with the plurality of slots 3101, and the plugs 320 are inserted into the corresponding slots 3101.

[0039] Reference Figure 3 and Figure 4 In the embodiment of the present application, a driving assembly 35 is connected between the rotating tube 313 and the bracket assembly 10. The driving assembly 35 includes a driven gear 351, a driving gear 352 and a servo motor 353. The driven gear 351 is coaxially connected to the rotating tube 313, and the driving gear 352 is meshed with the driven gear 351. The servo motor 353 is installed on the bracket assembly 10 and connected to the driving gear 352 to drive the driving gear 352 to rotate. The rotating tube 313 drives the carrying ring 311 to rotate, so that the multiple molds 32 are sequentially matched with the delivery pump 26. The plug 320 cooperates with the slot 3101, so that the mold 32 can be quickly disassembled and assembled on the carrying ring 311.

[0040] Reference Figure 3 and Figure 4A conical tube 312 is connected between the carrying ring 311 and the rotating tube 313. The end of the conical tube 312 with a larger diameter is coaxially connected to the inner hole of the rotating tube 313, and the end of the conical tube 312 with a smaller diameter is coaxially connected to the rotating tube 313. The end of the side discharge trough 323 away from the shaping tube 321 is located on the inner side of the carrying ring 311. The sampling mechanism 3 also includes a piston 33 and a nozzle 34. The piston 33 is installed on the bracket assembly 10 in a liftable manner and can be coaxial with a rotating tube 313 to squeeze the excess concrete slurry in the rotating tube 313 into the side discharge trough 323. When the rotating tube 313 rotates, each time the rotating tube 313 stops rotating, there needs to be a mold 32 on the carrying ring 311 to match the position with the delivery pump 26, and a mold 32 to match the position with the piston 33.

[0041] Reference Figure 3 and Figure 4 In the embodiment of the present application, a lifting member 331 is connected between the piston 33 and the bracket assembly 10. After concrete is injected into the rotating tube 313, during the rotation of the bearing ring 311, the rotating tube 313 can move to be coaxial with the piston 33 and pause, and then the piston 33 descends into the rotating tube 313 to squeeze the concrete above the bottom of the side discharge trough 323 into the side discharge trough 323. After the side discharge trough 323 discharges the excess concrete into the conical tube 312, it is discharged in a directional manner through the rotating tube 313.

[0042] Reference Figure 3 and Figure 4 The sampling mechanism 3 also includes a nozzle 34 installed on the bracket assembly 10 , and the nozzle 34 is used to spray water toward the inner wall of the tapered tube 312 .

[0043] Reference Figure 3 and Figure 4 In the embodiment of the present application, the nozzle 34 is connected to a water source such as tap water, and sprays water toward the inner wall of the conical tube 312 to clean the concrete on the inner wall of the conical tube 312.

[0044] Reference Figure 1 , Figure 5 and Figure 6, the two ends of the sample box 5 in the length direction are respectively provided with a first box door 51 and a second box door 52, and the first box door 51 is arranged opposite to the sampling mechanism 3, and the second box door 52 is arranged opposite to the strength detection mechanism 6. The interior of the sample box 5 is provided with a first sample storage plate 53 and a second sample storage plate 54 located below the first sample storage plate 53. In the length direction of the sample box 5, the first sample storage plate 53 and the first sample storage plate 53 are both slidably connected to the sample box 5. The first sample storage plate 53 is provided with a plurality of first sample storage slots 5301, and the second sample storage plate 54 is provided with a plurality of second sample storage slots 5401, and the plurality of second sample storage slots 5401 are arranged corresponding to the plurality of first sample storage slots 5301. When the mold 32 filled with concrete slurry is moved to the first sample storage slot 5301. The first box door 51 is opened, the first sample storage plate 53 slides toward the sampling mechanism 3, and the robot arm 4 pulls the mold 32 upward and places it in the first sample storage slot 5301. After the concrete slurry solidifies into a concrete sample, the concrete sample is demoulded and stored in the second sample storage tank 5401.

[0045] Reference Figure 1 , Figure 5 and Figure 6 In the embodiment of the present application, the sample box 5 is also provided with a temperature sensor 56, a humidity sensor 57, a hot air blower 58, a cold air blower 581, a humidifier 59 and a dehumidifier 591. The temperature sensor 56 and the humidity sensor 57 detect the temperature and humidity in the sample box 5 respectively, and the hot air blower 58 and the cold air blower 581 are used to heat up and cool down the inside of the sample box 5 respectively. The humidifier 59 and the dehumidifier 591 humidify and dehumidify the inside of the sample box 5 respectively. The temperature and humidity inside the sample box 5 can be controlled, and then the inside of the sample box 5 can simulate the temperature and humidity of the environment in different regions, so as to better judge the actual solidification condition and actual strength of the concrete sample in the region.

[0046] Reference Figure 1 , Figure 5 and Figure 7 The strength detection mechanism 6 includes a manipulator 61 and a pressure component 62. The manipulator 61 is installed on the bracket assembly 10. The pressure component 62 includes a vertical rod 621, a pressure-bearing member 622, a pressure sensor 623 and a rangefinder 624. One end of the vertical rod 621 is connected to the manipulator 61, and the other end of the vertical rod 621 is connected to the pressure sensor 623. The pressure-bearing member 622 is connected to the force-bearing surface of the pressure sensor 623. The rangefinder 624 is installed on the pressure-bearing member 622 on the side of the force-bearing surface of the pressure sensor 623. A pressure-bearing plate 55 is provided directly below the strength detection mechanism 6. The pressure-bearing plate 55 is provided with a guide rail 551 arranged along the length direction of the sample box 5. One end of the guide rail 551 extends to the interior of the sample box 5. The second sample storage plate 54 is slidably connected to the sample box 5 through the guide rail 551.

[0047] Reference Figure 1 , Figure 5 and Figure 7 In the embodiment of the present application, when the second sample storage plate 54 carries the concrete sample and slides directly to the bottom of the strength detection mechanism 6 along the guide rail 551, the manipulator 61 drives the pressure-bearing member 622 to press the concrete sample on the second sample storage plate 54 until the concrete sample is broken. The distance meter 624 detects the distance between the pressure-bearing member 622 and the second sample storage plate 54. During the compression of the concrete sample, if the concrete sample is not broken, the measurement value of the distance meter 624 remains unchanged during the compression of the concrete sample. If the concrete sample is broken, the measurement value of the distance meter 624 decreases. At the moment when the value of the distance meter 624 changes, the detection value of the pressure sensor 623 is the maximum pressure value that the concrete sample can withstand.

[0048] The implementation principle of a concrete strength detection line in the embodiment of the present application is: Multiple spiral quantitative feeders 13 are used to quantitatively deliver a raw material to the conveyor belt 11 respectively. The conveyor belt 11 is installed to deliver the total raw materials to the feed hopper 25 to achieve the purpose of quantitatively delivering various raw materials into the mixing barrel 2, which is convenient for the staff to accurately mix the concrete of each grade.

[0049] Then, according to the total amount of raw materials, water of corresponding proportion is injected into the mixing barrel 2, and the mixing barrel 2 mixes the raw materials and water into concrete slurry. The turntable 31 rotates, so that the multiple molds 32 are sequentially matched with the delivery pump 26 and the piston 33. The delivery pump 26 injects the concrete slurry into the multiple molds 32 in sequence, and the piston 33 squeezes the excess concrete slurry in the mold 32 into the conical tube 312. The nozzle 34 is connected to a water source such as tap water, and sprays water to the inner wall of the conical tube 312 to rinse the concrete on the inner wall of the conical tube 312, and discharges the sewage through the rotating tube 313.

[0050] When the mold 32 filled with concrete slurry is moved to the first sample storage tank 5301, the first box door 51 is opened, the first sample storage plate 53 slides toward the sampling mechanism 3, and the mechanical arm 4 pulls the mold 32 upward and places it in the first sample storage tank 5301. After the concrete slurry solidifies into a concrete sample, the concrete sample is demoulded and stored in the second sample storage tank 5401.

[0051] When the strength of the concrete sample is tested, the second box door 52 is opened, and when the second sample storage plate 54 carrying the concrete sample slides directly along the guide rail 551 to the bottom of the strength testing mechanism 6, the manipulator 61 drives the pressure-bearing member 622 to press the concrete sample on the second sample storage plate 54 until the concrete sample is broken. The distance meter 624 detects the distance between the pressure-bearing member 622 and the second sample storage plate 54. During the compression of the concrete sample, if the concrete sample is not broken, the measurement value of the distance meter 624 remains unchanged during the compression of the concrete sample. If the concrete sample is broken, the measurement value of the distance meter 624 decreases. At the moment when the value of the distance meter 624 changes, the detection value of the pressure sensor 623 is the maximum pressure value that the concrete sample can withstand.

[0052] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0053] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concrete strength testing line, characterized by: The invention comprises a support assembly (10), a feeding mechanism (1), a stirring barrel (2), a sampling mechanism (3), a sample box (5) and a strength detection mechanism (6), wherein the feeding mechanism (1), the stirring barrel (2), the sampling mechanism (3), the sample box (5) and the strength detection mechanism (6) are sequentially mounted on the support assembly (10) from the feeding end to the discharging end of the support assembly (10); The feeding mechanism (1) is used to quantitatively convey a variety of raw materials into the mixing barrel (2); The mixing barrel (2) is used to mix the raw materials with water into concrete slurry, and a delivery pump (26) is provided at the discharge end; The sampling mechanism (3) comprises a rotating disk (31) and a plurality of molds (32), the rotating disk (31) being rotatably connected to the support assembly (10), and the plurality of molds (32) being mounted on the rotating disk (31) along the circumference of the rotating disk (31); The delivery pump (26) is used to inject concrete slurry into the mold (32), and the concrete slurry solidifies into a concrete sample in the mold (32); The sample box (5) is used to store concrete samples; The strength detection mechanism (6) is used to perform strength detection on the concrete sample.

2. A concrete strength testing line according to claim 1, characterized in that: The feeding mechanism (1) comprises a conveyor belt (11) and a plurality of screw quantitative feeders (13); the conveyor belt (11) is mounted on the support assembly (10) and is used to transport raw materials into the mixing barrel (2); The plurality of spiral quantitative feeders (13) are installed at the feeding end of the conveyor belt (11), and are respectively used to quantitatively convey a raw material to the conveyor belt (11).

3. A concrete strength testing line according to claim 2, characterized in that: The mixing barrel (2) comprises a barrel body (21), a barrel cover (22), mixing blades (23) and a feed hopper (25); the barrel body (21) is mounted on the bracket assembly (10); The barrel cover (22) is installed at the barrel mouth of the barrel body (21); The stirring blade (23) is disposed in the barrel body (21) and is rotatably connected to the barrel cover (22); The feed hopper (25) is installed on the side wall of the barrel (21) and is connected to the discharge end of the conveyor belt (11); The delivery pump (26) is installed at the bottom of the barrel body (21).

4. A concrete strength testing line according to claim 1, characterized in that: The mold (32) comprises a shaping tube (321), an end cover (322), a side discharge chute (323) and an isolation paper mold (324); the shaping tube (321) is arranged vertically; The end cover (322) is mounted on the lower end of the shaping tube (321) and is also detachably connected to the rotating disk (31); The side discharge trough (323) is arranged at the upper end of the side wall of the shaping tube (321); The isolation paper mold (324) is arranged in the shaping tube (321) and the side discharge trough (323), and is in contact with the inner wall of the shaping tube (321) and the inner wall of the side discharge trough (323).

5. A concrete strength testing line according to claim 4, characterized in that: The rotating disk (31) comprises a bearing ring (311) and a rotating tube (313), and the rotating tube (313) is rotatably connected to the bracket assembly (10); The carrying ring (311) is coaxially connected to the rotating tube (313); A plurality of slots (3101) are provided in the circumferential direction of the bearing ring (311), a plug (320) is provided on each of the end covers (322), the plurality of plugs (320) are arranged corresponding to the plurality of slots (3101), and the plugs (320) are inserted into corresponding slots (3101).

6. A concrete strength testing line according to claim 5, characterized in that: A conical tube (312) is connected between the carrying ring (311) and the rotating tube (313); an end of the conical tube (312) with a larger diameter is coaxially connected to the inner hole of the rotating tube (313); and an end of the conical tube (312) with a smaller diameter is coaxially connected to the rotating tube (313); One end of the side discharge trough (323) away from the shaping tube (321) is located on the inner side of the carrying ring (311); The sampling mechanism (3) further comprises a piston (33) and a nozzle (34); the piston (33) is movably mounted on the support assembly (10) and is coaxial with one of the rotating tubes (313) for squeezing excess concrete slurry in the rotating tube (313) into the side discharge trough (323).

7. A concrete strength testing line according to claim 6, characterized in that: The sampling mechanism (3) further comprises a spray head (34) mounted on the support assembly (10), the spray head (34) being used to spray water onto the inner wall of the conical tube (312).

8. A concrete strength testing line according to claim 7, characterized in that: The sample box (5) is provided with a first box door (51) and a second box door (52) at both ends in the length direction, respectively; The sample box (5) is provided with a first sample storage plate (53) and a second sample storage plate (54) located below the first sample storage plate (53); In the length direction of the sample box (5), the first sample storage plate (53) and the second sample storage plate (53) are both slidably connected to the sample box (5); The first sample storage plate (53) is provided with a plurality of first sample storage slots (5301), and the second sample storage plate (54) is provided with a plurality of second sample storage slots (5401), and the plurality of second sample storage slots (5401) are arranged corresponding to the plurality of first sample storage slots (5301).

9. A concrete strength testing line according to claim 8, characterized in that: The strength detection mechanism (6) comprises a manipulator (61) and a pressing assembly (62), wherein the manipulator (61) is mounted on the bracket assembly (10), and the pressing assembly (62) comprises a vertical rod (621), a pressure-bearing member (622), a pressure sensor (623) and a rangefinder (624), wherein one end of the vertical rod (621) is connected to the manipulator (61), and the other end of the vertical rod (621) is connected to the pressure sensor (623); The pressure-bearing member (622) is connected to the force-bearing surface of the pressure sensor (623); The distance meter (624) is mounted on the pressure-bearing member (622) on the side of the force-bearing surface of the pressure sensor (623); A pressure plate (55) is provided directly below the strength detection mechanism (6), and a guide rail (551) is provided on the pressure plate (55) along the length direction of the sample box (5), one end of the guide rail (551) extends into the interior of the sample box (5), and the second sample storage plate (54) is slidably connected to the sample box (5) via the guide rail (551).

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