Concrete compressive strength detection system and working method

Abstract

The invention relates to a concrete compressive strength detection system and a working method, belongs to the technical field of concrete compressive strength detection, and solves the problems of high labor cost and low efficiency of current concrete compressive strength detection. A cache conveying mechanism is arranged on one side of the discharging end, and a first clamping mechanism is arranged at the tail end of the cache conveying mechanism; a stacking machine is arranged in a roadway of the goods shelf, a first conveying mechanism and a second conveying mechanism are arranged at the inlet and outlet end of the roadway, a second clamping mechanism is arranged at the feeding end of the first conveying mechanism, and a temporary storage frame is further arranged on one side of the inlet and outlet end of the roadway; the detection system further comprises a demolding device, a mechanical arm and a compressive strength detection device are arranged on one side of the demolding device, the detection system further comprises a transfer device, the detection system is high in automation degree, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete detection, and in particular to a concrete compressive strength detection system and a working method. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The existing production equipment in the precast concrete industry has high production efficiency, but the necessary sample retention and testing are complicated, requiring a lot of manpower to complete processes such as concrete sampling, concrete performance testing, concrete curing, and concrete batch data recording. The overall degree of automation in the testing process is extremely low, and the costs and errors caused by manual labor are also a problem faced by concrete industry manufacturers. The realization of automation and intelligence of concrete laboratories is an inevitable trend in the development of the industry and has broad development space.

[0004] Currently, there are automatic concrete sample preparation devices, automatic concrete sample demoulding devices, and automatic concrete sample compressive strength testing devices. The above equipment only realizes the automation of a single process in the concrete compressive strength testing process. The connection between each process still needs to be done manually, which increases labor costs and reduces work efficiency. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a concrete compressive strength testing system and method, which realizes the automation of the concrete test production, curing, demoulding, testing and other processes on the assembly line, reduces manual participation, reduces labor costs, and improves work efficiency.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions: In a first aspect, an embodiment of the present invention provides a concrete compressive strength detection system, comprising: The sample preparation device comprises a feeding mechanism connected to the feeding hopper of the concrete mixing station, a vibrating mechanism is provided below the feeding mechanism, an empty mold feeding mechanism is provided on one side of the feeding end of the vibrating mechanism, a buffer conveying mechanism is provided on one side of the discharging end, and a first clamping mechanism is provided at the end of the buffer conveying mechanism; Shelves: There are lanes in the shelves, and stackers are installed in the lanes. The first conveying mechanism and the second conveying mechanism are respectively provided on both sides of the inlet and outlet of the lanes. The feeding end of the first conveying mechanism is provided with a second clamping mechanism. A cache rack is also provided on one side of the inlet and outlet of the lanes. Demoulding device: It is arranged on the side of the second conveying mechanism away from the end of the roadway side. A mechanical arm and a compressive strength testing device are provided on one side of the demoulding device. The mechanical arm is used to deliver the concrete test block demoulded by the demoulding device into the compressive strength testing device. Transfer device: used to receive the concrete-injected mold sent by the first clamping mechanism and transport the mold to the second clamping mechanism.

[0007] Optionally, the first clamping mechanism includes a gantry arranged at the end of the buffer conveying mechanism, a three-axis linkage mechanism is provided on the top of the gantry, the three-axis linkage mechanism is connected to the first clamping mechanism, and the first clamping mechanism is used to clamp and fix the mold.

[0008] Optionally, the first clamping mechanism includes a first connecting plate, the first connecting plate is connected to the first three-axis linkage mechanism, the first connecting plate is provided with a first bidirectional cylinder, and the two telescopic parts of the first bidirectional cylinder are connected to the first clamping plate to drive the two first clamping plates to move toward or away from each other synchronously.

[0009] Optionally, the empty mold feeding mechanism includes a first conveying mechanism, the end of the first conveying mechanism corresponds to the feeding end of the vibrating mechanism, and the end of the first conveying mechanism is provided with a first pushing mechanism to push the empty mold to the vibrating mechanism.

[0010] Optionally, the buffer conveying mechanism includes a second conveying mechanism arranged on one side of the discharge end of the vibrating mechanism, and the vibrating platform is provided with a second pushing mechanism to push the mold injected with concrete into the second conveying mechanism.

[0011] Optionally, the second clamping mechanism includes a bracket arranged on one side of the feed end of the first conveying mechanism, and a horizontal moving drive mechanism is provided on the top of the bracket. The horizontal moving drive mechanism is connected to the vertical lifting mechanism to drive the vertical lifting mechanism to move horizontally and the movement direction is perpendicular to the conveying direction of the first conveying mechanism. The vertical lifting mechanism is connected to the second clamping mechanism.

[0012] Optionally, the second clamping mechanism includes a second connecting plate connected to the vertical lifting mechanism, the second connecting plate is provided with a second bidirectional cylinder, and the two telescopic parts of the second bidirectional cylinder are connected to the second clamping plate to drive the second clamping plate to move toward or away from each other synchronously.

[0013] Optionally, the cache rack includes a frame body, the frame body adopts a step structure, each step is provided with a test block tray support plate, one side of the step structure for placing the test block tray is provided with a third pushing mechanism installed on the frame body, and the opposite side of the third pushing mechanism is provided with a baffle fixed to the frame body.

[0014] Optionally, the transfer device adopts an AGV vehicle, and the AGV vehicle is provided with a support frame for supporting the mold.

[0015] In a second aspect, an embodiment of the present invention provides a method for operating the concrete compressive strength detection system according to the first aspect, comprising the following steps: The empty mold feeding mechanism sends the empty mold to the vibrating mechanism and to the bottom of the storage hopper; The unloading mechanism delivers the concrete to be sampled into the storage hopper, and the storage hopper injects the concrete into the mold placed by the vibrating mechanism; The vibrating mechanism works to vibrate the concrete. After the vibration is completed, the buffer conveying mechanism sends out the mold filled with concrete, and the first clamping mechanism sends the mold filled with concrete into the transfer device; The transfer device transports the mold filled with concrete to the second clamping mechanism, and the second clamping mechanism clamps the mold filled with concrete and transports the mold filled with concrete to the entrance and exit of the tunnel; The stacker receives the mold filled with concrete and transports it to the initial setting area of ​​the rack to carry out the initial setting of the concrete in the mold; The stacker delivers the concrete after initial setting to the second conveying mechanism together with the mold, and the second conveying mechanism delivers the mold and the initial setting concrete to the demoulding mechanism for demoulding; After demoulding is completed, the robotic arm transfers the concrete test blocks to the buffer rack, and then the stacker sends the test blocks to the curing area of ​​the rack for curing. After curing is completed, the stacker places the cured test blocks on the buffer rack, and the robotic arm moves the concrete test blocks to the compressive strength testing device for compressive strength testing.

[0016] The beneficial effects of the present invention are as follows: 1. The compressive strength testing system of the present invention realizes the continuous operation of multiple processes such as the production, curing, demolding and compressive strength testing of concrete test blocks through the arrangement of a transfer device, a first clamping mechanism, a second clamping mechanism, a first conveying mechanism, a second conveying mechanism, a stacker and a shelf, thereby realizing a continuous production process. The entire process does not require human participation, and the test blocks and molds can be automatically transferred, which greatly improves work efficiency and reduces labor costs.

[0017] 2. The compressive strength testing system of the present invention can achieve accurate placement of concrete test blocks through the provision of shelves and stackers, thus avoiding damage and waste of concrete test blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present invention; Figure 2 Schematic diagram of a sample preparation device according to embodiment 1 of the present invention; Figure 3 This invention Figure 2 A local enlarged view of point A in FIG; Figure 4 This is a schematic diagram of the lower hopper structure of a concrete mixing station according to embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the first clamping mechanism in Example 1 of the present invention; Figure 6 This is a schematic diagram of the shelf structure of Example 1 of the present invention; Figure 7 This is a schematic diagram of the second clamping mechanism in Example 1 of the present invention; Figure 8 Schematic diagram of a buffer rack and a demoulding device according to embodiment 1 of the present invention; Among them: 1. hopper, 2. sample preparation device, 3. shelf, 4. demoulding device, 5. microcomputer hydraulic servo press, 6. second conveying mechanism, 7. first conveying mechanism, 8. AGV vehicle, 9. first gripping mechanism, 10. second gripping mechanism, 11. first conveying mechanism, 12. robotic arm, 13. second conveying mechanism, 14. cache rack, 15. test block tray, 16. code printer; 201. Storage hopper, 202. Removal cylinder, 203. Second push cylinder, 204. Mold, 205. Removal cylinder, 206. First push cylinder, 207. Vibration motor, 208. Collection hopper, 209. Mold platform, 210. Bracket, 211. Scraper; 301. Stacker, 302. Initial setting area, 303. Standard curing area, 304. Cargo space, 305. Support plate; 401. Cleaning board; 901. Gantry, 902. First screw drive mechanism, 903. Moving beam, 904. First lifting cylinder, 905. Guide column, 906. First bidirectional cylinder, 907. First clamping plate; 1001. Bracket, 1002. Moving frame, 1003. Horizontal motion drive cylinder, 1004. Second lifting cylinder, 1005. Second bidirectional cylinder, 1006. Second clamping plate; 1401. Frame, 1402. Baffle, 1403. Third push cylinder. DETAILED DESCRIPTION

[0020] For the convenience of description, if the words "upper" and "lower" appear in the present invention, they only indicate that they are consistent with the upper and lower directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0021] Example 1 This embodiment provides a concrete compressive strength detection system. Figure 1 As shown, it includes a sample preparation device 2, a demoulding device 4, a shelf 3, a stacker 301, a transfer device and a compressive strength testing device. The sample preparation device 2 is used to directly take materials from the lower hopper 1 of the concrete mixing station, and then make concrete test blocks for compressive strength testing. The demoulding device 4 is used to demould the concrete in the initial setting state from the mold. The shelf 3 is provided with an initial setting area and a standard curing area. The initial setting area is used for the initial setting of concrete in the mold, and the standard curing area is used for curing the concrete test blocks. The stacker 301 is used to realize the delivery of molds and / or test blocks to or from the shelf. The transfer device is used to transport the molds injected with concrete.

[0022] like Figure 2-Figure 4 As shown, the sample preparation device 2 includes a feeding mechanism, which is used to take materials from the feeding hopper 1 of the concrete mixing station. A vibrating mechanism is provided below the feeding mechanism, which is used to place an empty mold. The feeding mechanism can inject concrete into the empty mold. The vibrating mechanism applies vibration to the mold to achieve vibration of the concrete. An empty mold feeding mechanism is provided at the feeding end of the vibrating mechanism, which is used to feed the empty mold into the vibrating mechanism. A cache conveying mechanism is provided at the discharging end of the vibrating mechanism. The cache conveying mechanism can receive the concrete and mold that have been vibrated, and then send out the mold and concrete after standing. A first clamping mechanism 9 is provided at the end of the cache conveying mechanism. The first clamping mechanism 9 is used to clamp the mold injected with concrete, and then send the mold injected with concrete into the transfer device for transfer.

[0023] The material discharging mechanism includes a material taking barrel 202, a material storage hopper 201, a piston, etc.

[0024] One end of the material taking barrel 202 is an open end, and the open end of the material taking barrel 202 is fixed to the outer wall of the lower hopper 1 of the concrete mixer, and the open end of the material taking barrel 202 corresponds to the opening of the lower hopper 1. The open end of the material taking barrel 202 serves as the feeding end, and the axis of the material taking barrel 202 is tilted, and the height of the feeding end is higher than the height of the other end.

[0025] A piston is provided in the material taking barrel 202, and the piston is slidably connected to the material taking barrel 202 to realize movement along the axial direction of the material taking barrel 202. The shape and size of the piston match the opening of the lower hopper 1, and can close or open the opening. The piston is connected to the piston rod of the material taking cylinder fixed at the other end of the material taking barrel 202. The cylinder body of the material taking cylinder 25 is fixed to the material taking barrel 202, and its piston rod is connected to the center position of the piston. A discharge port is provided at the bottom of the barrel wall of the material taking barrel 22. The piston moves in a direction away from the lower hopper 1, and can suck the concrete in the lower hopper 1 into the material taking barrel 202. The concrete entering the material taking barrel 22 falls from the discharge port.

[0026] A storage hopper 201 is provided below the discharge port. The storage hopper 201 is installed on a bracket 210 through a weighing sensor. The bracket 210 is welded from multiple profiles. A drop-out port is provided at the bottom of the storage hopper 201. A valve or automatic opening door is provided at the drop-out port. A vibrating mechanism is provided below the storage hopper 201.

[0027] The concrete dropped from the taking barrel 202 enters the storage hopper 201 for temporary storage. When the weighing sensor detects that the concrete in the storage hopper 201 reaches the target weight, the discharge port opens and the concrete is injected into the empty mold placed on the vibrating mechanism.

[0028] The vibrating mechanism includes a mold platform 209, which is used to place the mold 204. The mold platform 209 is provided with a material leakage hole. The bottom surface of the mold platform 209 is fixedly connected to the top open end of the collecting bucket 208, and the collecting bucket 208 is elastically connected to the bracket 210 through a spring.

[0029] Vibration motors 207 are provided on the outer sides of two oppositely disposed side walls of the collecting hopper 208 . The vibration motors 207 apply vibration to the mold platform 209 through the collecting hopper 208 , thereby achieving vibration of the concrete.

[0030] The spring prevents the vibration of the collecting bucket 208 from being transmitted to the bracket 210 .

[0031] During the vibration process, concrete splashed out of the mold 204 can fall into the collecting hopper 208 through the leakage hole, thereby collecting excess concrete and avoiding waste of concrete.

[0032] Furthermore, two scrapers 211 are provided above the mold platform 209. The scrapers 211 are fixed to the scraper bracket, and the scraper bracket is fixed on the mold platform 209. When the mold filled with concrete leaves the mold platform 209, the scrapers can scrape off excess concrete on the upper surface of the mold 204 to ensure the flatness of the upper surface of the concrete test block.

[0033] The edge of the mold platform 209 on one side away from the lower hopper serves as the feed end edge, and an empty mold feeding mechanism is provided on one side of the feed end edge. The empty mold feeding mechanism includes a first conveying mechanism 7 installed on the bracket 210, and the discharge end of the first conveying mechanism 7 corresponds to the feed end edge of the mold platform 209 and its conveying direction is parallel to the feed end edge. Preferably, the first conveying mechanism 7 adopts a first synchronous belt mechanism, and a first pushing mechanism is provided on one side of the discharge end of the first synchronous belt mechanism. The first pushing mechanism includes a first pushing cylinder 206, and the cylinder body of the first pushing cylinder 206 is fixed to the frame of the first synchronous belt mechanism, and its piston rod is connected to the first push plate. The first pushing cylinder 206 can push the empty mold into the mold platform 209 through the first push plate.

[0034] In order to position the mold, a positioning plate is provided on the mold platform 209, and the positioning plate is arranged opposite to the first push plate. The first push plate can push the empty mold until the empty mold contacts the positioning plate, thereby realizing the positioning of the empty mold along the output movement direction of the first push cylinder 206.

[0035] Furthermore, the mold platform 209 is provided with a groove, in which a photoelectric sensor is provided. The photoelectric sensor is used to position the mold on the mold platform 209 parallel to the conveying direction of the first conveying mechanism.

[0036] One side edge of the mold platform 209 that is vertically adjacent to the feed end edge is the discharge end edge. A second conveying mechanism 6 is provided on one side of the discharge end edge. The conveying direction of the second conveying mechanism 6 is the same as that of the first conveying mechanism. The second conveying mechanism 6 and the first conveying mechanism 7 are arranged side by side, reducing the space occupied by the entire sample preparation device.

[0037] Preferably, the second transmission mechanism 6 adopts a second synchronous belt mechanism.

[0038] In the mold platform, a second pushing mechanism is fixed on the edge opposite to the discharge end edge. The second pushing mechanism includes a second pushing cylinder 203. The cylinder body of the second pushing cylinder 203 is fixed to the mold platform 209, and its piston rod is connected to a second pushing plate. The second pushing plate can push the mold 204 into the second conveying mechanism 6.

[0039] The second conveying mechanism 6 and the second pushing mechanism together constitute a buffer conveying mechanism.

[0040] Furthermore, a plurality of nozzles are provided on the periphery of the mold platform 209, and the nozzles are connected to a water supply mechanism through a water pipe. The water supply mechanism can supply water to the nozzles, and the nozzles are used to clean the sides of the mold. The water supply mechanism includes a water tank and a water pump, etc., and existing technology can be used, which will not be described in detail here.

[0041] A first clamping mechanism 9 is provided at the end of the second conveying mechanism 203 . The first clamping mechanism 9 is used to clamp the mold 204 injected with concrete and deliver it to the transfer device.

[0042] like Figure 5 As shown, the first clamping mechanism 9 includes a gantry 901 arranged at the end of the second conveying mechanism. The gantry 901 is made of a plurality of welded profiles. The gantry 901 is arranged across the end of the second conveying mechanism 203. A three-axis linkage mechanism is installed on the top of the gantry 901. The three-axis linkage mechanism is connected to the first clamping mechanism, and the first clamping mechanism is used to clamp and fix the mold.

[0043] In this embodiment, the three-axis linkage mechanism can use existing equipment, including a first screw transmission mechanism 902 arranged on both sides of the top of the gantry 901 and distributed along the first direction, the same side ends of the two first screw transmission mechanisms 902 are connected to the transmission shaft through a bevel gear transmission mechanism, and the transmission shaft is connected to the drive motor installed on the top of the gantry 901. The first direction is the penetration direction of the second transmission mechanism 6. The moving parts of the two first screw transmission mechanisms 902 are connected to the moving beam 903, and the moving beam 903 can move along the first direction. A second screw transmission mechanism is installed on the moving beam 903, and the second screw transmission mechanism is distributed along a second direction perpendicular to the first direction. The moving part of the second screw transmission mechanism is connected to the first lifting cylinder 904 arranged vertically to the axis through the cylinder seat, and the piston rod of the first lifting cylinder 904 is connected to the first connecting plate. The first connecting plate is provided with a guide column 905, which passes through the cylinder seat and is slidably connected to the cylinder seat.

[0044] A first clamping mechanism is provided on the first connecting plate, and the first clamping mechanism includes a first bidirectional cylinder 906. The first bidirectional cylinder 906 can use an existing bidirectional cylinder, which will not be described in detail here. The two telescopic parts of the first bidirectional cylinder 906 are both connected to a first clamping plate 907. The first bidirectional cylinder 906 can drive the two first clamping plates 907 to move toward or away from each other synchronously, thereby realizing the switching of clamping and releasing the mold 204.

[0045] After the first clamping mechanism 9 clamps the mold 204 filled with concrete, it can move under the drive of the three-axis linkage mechanism to deliver the concrete filled with the mold into the transfer device.

[0046] In this embodiment, the transfer device adopts an AGV vehicle 8. The AGV vehicle 8 includes a vehicle body. A support frame is provided on the vehicle body. The support frame is used to support the mold.

[0047] AGV 8 can use existing equipment, which will not be described in detail here. AGV 8 has advanced autonomous navigation and obstacle avoidance functions, and can autonomously plan the optimal route according to the preset path and task. Its characteristics greatly improve the handling efficiency and accuracy of the test blocks, and also ensure the safe transportation of concrete test blocks and molds. like Figure 6 As shown, the shelf 3 is provided with an aisle inside, which divides the shelf into two parts. Both parts of the shelf adopt a frame structure and have multiple cargo positions 304. Each cargo position has a support plate 305 for supporting a test block pallet or a mold pallet. The stacker is arranged inside the aisle. The shelf has an initial setting area and a standard curing area 303. The locations of the initial setting area 302 and the standard curing area 303 can be set according to actual needs and will not be described in detail here.

[0048] The stacker 301 can be equipped with existing equipment. A traveling mechanism is provided at the bottom of the stacker 301. The traveling mechanism cooperates with a track extending in the direction of the laneway. The track is fixed on the ground. The stacker 301 is provided with a lifting mechanism. The lifting mechanism is connected to the cargo platform. A telescopic mechanism is provided on the cargo platform. The telescopic mechanism is connected to the fork. The fork can cooperate with the test block pallet or the mold pallet to realize the picking and placing of the test blocks or molds. The stacker 301 can be equipped with existing equipment. Further technical details are not described in detail here.

[0049] A first conveying mechanism 11 and a second conveying mechanism 13 are respectively provided on both sides of the inlet and outlet ends of the lane.

[0050] Preferably, the first conveying mechanism 11 and the second conveying mechanism 13 both adopt differential chain conveying mechanisms, and the conveying directions of the first conveying mechanism 11 and the second conveying mechanism 13 are perpendicular to the extension direction of the lane.

[0051] The differential chain conveyor mechanism is highly adjustable and precisely controlled, which can meet the requirements of transportation distance and speed and realize efficient connection between different devices.

[0052] A second clamping mechanism 10 is provided on one side of the end of the first conveying mechanism 11 away from the second conveying mechanism 13. The second clamping mechanism 10 is used to clamp the concrete-filled mold delivered by the transfer device and place the concrete-filled mold on the first conveying mechanism.

[0053] The second clamping mechanism includes a bracket 1001, which is arranged on one side of the first conveying mechanism 11. The bottom end of the bracket 1001 is fixed on the ground foundation. The top of the bracket 1001 is slidably connected to a movable rack 1002, and the sliding direction of the movable rack 1002 is perpendicular to the conveying direction of the first conveying mechanism 11.

[0054] The movable frame 1002 is connected to a horizontal motion driving mechanism installed on the top of the bracket, and the horizontal motion driving mechanism can drive the movable frame 1002 to move on the top of the bracket 1001.

[0055] In this embodiment, the horizontal motion driving mechanism adopts a horizontal motion driving cylinder 1003, the cylinder body of the horizontal motion driving cylinder 1003 is fixed on the top of the bracket 1001, and its piston rod is connected to the movable frame 1002, which can drive the movable frame 1002 to move horizontally. The movable frame 1002 is connected to the vertical lifting mechanism, and the vertical lifting mechanism adopts a second lifting cylinder 1004 with a vertically arranged axis. The cylinder body of the second lifting cylinder 1004 is connected to the movable frame 1002, and its piston rod is connected to a second connecting plate, and the second connecting plate is connected to the second clamping mechanism.

[0056] The second clamping mechanism adopts a second bidirectional cylinder 1005. The cylinder body of the second bidirectional cylinder 1005 is connected to the second connecting plate, and its two telescopic parts are connected to the second clamping plate 1006. The second bidirectional cylinder 1005 can drive the second clamping plate 1006 to move toward or away from each other synchronously, thereby achieving clamping and loosening of the mold 204.

[0057] Furthermore, an ultrasonic radar is provided at the inlet end of the first conveying mechanism 11 for detecting whether the second clamping mechanism 10 places the mold filled with concrete onto the first conveying mechanism 11, and a photoelectric sensor is provided at the outlet end of the first conveying mechanism 11 for detecting whether the mold 204 filled with concrete moves to the outlet end of the first conveying mechanism 11.

[0058] A cache rack 14 is further provided on one side of the inlet and outlet ends of the lane, and the cache rack is arranged on a side of the end of the first conveying mechanism 11 away from the shelf 3.

[0059] like Figure 7 As shown, the cache rack 14 includes a frame 1401, and the frame 1401 adopts a stepped structure. In this embodiment, the frame has three steps, each step has a test block tray placement area, and support plates are provided on both sides of the test block tray placement area. The support plates are used to support the test block tray, and a third pushing mechanism is provided on one side of the test block tray placement area, and a baffle 1402 is provided on the other side opposite to the third pushing mechanism. In this embodiment, the baffle is provided on the side close to the alley. In order to prevent the baffle 1402 from obstructing the operation of the stacker 301, baffles 1402 are only provided on both sides of the edge of the test block tray placement area. The third pushing mechanism includes a third pushing cylinder 1403, and the piston rod of the third pushing cylinder 1403 is connected to the third pushing plate. The third pushing plate is used to contact with the test block tray 15, and push the test block tray 15 tightly against the baffle 1402, thereby achieving the fixation of the test block tray 15.

[0060] The provision of the third push cylinder 1403 and the baffle 1402 facilitates the positioning of the test block tray 15 on the cache rack 14 , thereby facilitating the robotic arm 12 to grab the concrete test blocks on the test block tray 15 or place the concrete test blocks on the test block tray 15 .

[0061] One end of the first conveying mechanism 11 is close to the inlet and outlet of the lane, and a demoulding device 4 is provided on one side of the other end. The demoulding device 4 can be the demoulding device disclosed in the patent application CN1176740A, including a conveying mechanism, the conveying direction of the conveying mechanism is a first direction, a demoulding mechanism is provided on one side of the conveying mechanism, and the demoulding mechanism includes a bracket, a fixed plate is fixed to the bracket, and a mobile driving mechanism is provided on the bottom surface of the fixed plate. The mobile driving mechanism is connected to a transfer component for cooperating with the mold to transfer the undemolded test block and the mold from the conveying mechanism to the demoulding portion of the bracket along the second direction through the transfer component. The second direction is perpendicular to the first direction. Along the first direction, an ejection mechanism is provided on one side of the demoulding station to eject the concrete test block from the mold, and a test block receiving station is provided on the other side. Along the second direction, a temporary storage platform is provided on one side of the test block receiving station, and a push plate is provided on the other side. The push plate is connected to the push drive component fixed to the bottom surface of the fixed flat plate. The ejector pin of the ejection mechanism can pass through the mold through the opening on the mold, and then eject the concrete test block from the mold 204 to achieve demoulding. The conveying mechanism of the demoulding device can receive the mold with the initial setting of the internal concrete delivered by the first conveying mechanism 11.

[0062] The demoulding device 4 can be made using existing technology, which will not be described in detail here.

[0063] A mechanical arm 12 and a compressive strength detection device are provided on one side of the demoulding device 4 .

[0064] The robotic arm 12 can transfer the demoulded test blocks to the buffer rack, and can also send the concrete test blocks that have been cured on the buffer rack 14 to the compressive strength testing device.

[0065] In this embodiment, the robotic arm 12 is an existing six-axis robotic arm with flexible movements and precise grasping capabilities, and can accurately identify the position and state of the test block and autonomously grasp and place it as needed.

[0066] A clamping mechanism is provided at the end of the six-axis robotic arm, which can clamp and fix the mold 204 and the concrete test block. The clamping mechanism can adopt existing technology and will not be described in detail here.

[0067] The compressive strength detection device can use the existing microcomputer electro-hydraulic servo press 5, and its specific structure will not be described in detail here. The microcomputer electro-hydraulic servo press 5 can realize accurate pressure testing operation on the test block and collect pressure data in real time. By using the microcomputer electro-hydraulic servo press 5, the efficiency and accuracy of concrete testing are greatly improved.

[0068] Furthermore, it also includes a coding device 16 arranged on one side of the robotic arm 12. In this embodiment, the coding device 16 is installed on the side of the frame 1401 of the cache rack 14. The coding device 16 can use existing equipment, and its specific structure is not described in detail here. The robotic arm 12 can drive the test block to one side of the coding device 16, and use the coding device 16 to code it, which provides a strong guarantee for the traceability and management of the concrete test block data, ensuring that the traceability and identification of the test block are more scientific and efficient.

[0069] Furthermore, the mold 204 adopts a 100*100*100 triple concrete test block mold specified in the current industry standard "Concrete Test Mold" JG237. One side of the mold is open, and the other side is provided with a through hole for the ejector pin in the demoulding device to pass through.

[0070] Furthermore, an RFID tag is affixed to the outside of the mold 204. Accordingly, card readers are provided on the sides of the mold platform 209, the first conveying mechanism 7, the head and tail ends of the second conveying mechanism 6, the support frame of the AGV vehicle 8, the entrance of the conveying mechanism of the demolding device 4, and each cargo position of the shelf 3. The card reader can use existing equipment and will not be described in detail here. The information of the mold 204 can be read by the card reader, thereby tracking the mold 204. In this way, automatic identification and recording of the test block information can be achieved, providing efficient data management and tracking, and providing a strong guarantee for the effective analysis and application of subsequent test data.

[0071] The various sensors, ultrasonic radars, weighing sensors and other detection elements of this embodiment are connected to the control system and can transmit the information obtained from the detection to the control system. The various electronically controlled execution devices such as cylinders, transmission mechanisms, and conveying mechanisms are connected to the control system and can receive instructions from the control system to work, thereby realizing the automation of the entire process.

[0072] Example 2 This embodiment provides a method for operating the concrete compressive strength detection system described in Embodiment 1, comprising the following steps: The empty mold feeding mechanism delivers the empty mold to the vibrating mechanism and directly below the storage hopper 201; Specifically, the first conveying mechanism 7 moves the empty mold to the corresponding position of the vibrating mechanism, the first pushing cylinder 206 works, and pushes the empty mold to the mold platform 209 through the first pushing plate until the empty mold contacts the positioning plate, and then the first pushing cylinder 206 retreats, and the second pushing cylinder 203 works, and pushes the empty mold through the second pushing plate, and pushes the empty mold to the bottom of the blanking port of the storage hopper 201.

[0073] The unloading mechanism delivers the concrete to be sampled into the storage hopper 201, and the storage hopper 201 injects the concrete into the mold where the vibrating mechanism is placed; Specifically: the material cylinder 205 drives the piston to reciprocate in the material barrel 202, sucking the concrete in the concrete mixing station hopper 1 into the material barrel 202, and dropping it into the storage hopper 201 through the discharge port. When the weighing sensor detects that the weight of the concrete in the storage hopper 201 reaches the target weight, the piston moves to block the opening of the hopper 1 and stop discharging.

[0074] Then the discharge port of the storage hopper 201 is opened and the concrete inside is poured into the mold 204.

[0075] The vibrating mechanism works to vibrate the concrete. After the vibration is completed, the buffer conveying mechanism sends out the mold filled with concrete, and the first clamping mechanism 9 sends the mold 204 filled with concrete into the transfer device. Specifically: the vibration motor 207 starts to vibrate the concrete. During the vibration process, the splashed concrete falls into the collection bucket 205 through the leakage hole for collection. After the vibration is completed, the nozzles around the mold platform 209 spray cleaning water to clean the surrounding side surfaces of the mold. After the cleaning is completed, the second pushing cylinder 203 sends the mold 204 injected with concrete into the second conveying mechanism 6 for stationary state, and at the same time the scraper 211 smoothes the upper surface of the concrete in the mold 204.

[0076] The transfer device transports the mold 204 filled with concrete to the second clamping mechanism, which clamps the mold filled with concrete and transports the mold filled with concrete to the entrance and exit of the tunnel. Specifically, after the concrete has been left standing on the second conveying mechanism for 1 hour, the second conveying mechanism 6 conveys the mold 204 injected with concrete to the position corresponding to the first clamping mechanism 9, and the three-axis linkage mechanism drives the first clamping mechanism to operate, the first bidirectional cylinder 906 works, and the mold is clamped by the first clamping plate 907, and then the three-axis linkage mechanism works, and the first clamping mechanism 9 places the mold injected with concrete on the support frame of the AGV vehicle 8.

[0077] The AGV vehicle 8 drives the mold 204 and the concrete to the position corresponding to the second clamping mechanism 10. The second clamping mechanism 10 drives the horizontal movement of the cylinder 1003 and the second lifting cylinder 1004 to work together to transfer the mold 204 and the concrete to the first conveying mechanism 11. When the ultrasonic radar detects that the mold 204 is placed in the first conveying mechanism 11, the first conveying mechanism 11 works and conveys the mold 204 and the concrete to its end. When the photoelectric sensor detects that the mold 204 moves to the end of the first conveying mechanism 11, the stacker 301 works.

[0078] The stacker 301 receives the mold 204 filled with concrete and transports it to the initial setting area 302 of the rack 3 to perform initial setting of the concrete in the mold 204; Specifically, the stacker 301 moves to a position corresponding to the first conveying mechanism 11, and then removes the mold 204 injected with concrete from the first conveying mechanism 11. Then, the stacker 301 places the mold 204 injected with concrete into the set cargo position of the initial setting area 302 of the shelf 3 to perform initial setting of the concrete.

[0079] After the concrete is placed in the initial setting area for 24 hours, the stacker 301 delivers the initially set concrete and the mold 204 to the second conveying mechanism 13. The second conveying mechanism 13 delivers the mold 204 and the initially set concrete to the demoulding mechanism 4 for demoulding. Specifically, the stacker 301 removes the mold 204 after the concrete has initially set from the initial setting area 302 of the shelf 3, and then transfers it to the second conveying mechanism 13. The second conveying mechanism 13 conveys the mold 204 to the conveying mechanism of the demolding device 4. After the conveying mechanism moves the mold 204 to the position corresponding to the robot arm 12, the robot arm 12 flips the mold 204 90°, and then the conveying mechanism of the demolding device 4 continues to convey the mold 204 to the demolding station, and then demolding is performed. The demolding method can adopt the existing technology and will not be described in detail here.

[0080] After demoulding is completed, the robot arm 12 grabs the concrete test block and drives the concrete test block to contact the cleaning plate 401 on the test block temporary storage area of ​​the demoulding device and reciprocate along the cleaning plate 401 to clean the burrs of the concrete test block. Then, the robot arm 12 transfers the concrete test block to one side of the coding device 16 for coding. Finally, the concrete test block is transferred to the test block tray 15 of the buffer rack 14. When a set number of concrete test blocks are placed on the test block tray 15, the stacker 301 transports the test block tray 15 and the concrete test blocks to the standard curing area 303 of the shelf 3 for curing. After the curing is completed, the stacker 301 places the cured concrete test block and the test block tray 15 on the buffer rack 14, and the robotic arm 12 moves the concrete test block to the microcomputer hydraulic servo press 5 for compressive strength testing. When the camera equipped with the microcomputer hydraulic servo press 5 detects that the concrete test block has arrived at the test area, the microcomputer hydraulic servo press 5 starts working, and the computer connected to the microcomputer hydraulic servo press 5 displays the pressure value and compressive strength, and generates a report.

[0081] By adopting the compressive strength testing system and working method of this embodiment, the continuous operation of multiple processes such as the production, curing, demolding and compressive strength testing of concrete test blocks realizes a continuous production process. The entire process does not require human participation and there is no human error. The test blocks and molds can be automatically transported, which greatly improves work efficiency and reduces labor costs. In addition, the initial setting and curing of the concrete test blocks are carried out in the shelves, avoiding damage and waste of the concrete test blocks, greatly improving the efficiency and reliability of the test block curing, ensuring the quality and accuracy of the test blocks, and providing a strong guarantee for the effective analysis and application of subsequent test data.

[0082] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A concrete compressive strength testing system, characterized in that: include: The sample preparation device comprises a feeding mechanism connected to the feeding hopper of the concrete mixing station, a vibrating mechanism is provided below the feeding mechanism, an empty mold feeding mechanism is provided on one side of the feeding end of the vibrating mechanism, a buffer conveying mechanism is provided on one side of the discharging end, and a first clamping mechanism is provided at the end of the buffer conveying mechanism; Shelves: There are lanes in the shelves, and stackers are installed in the lanes. The first conveying mechanism and the second conveying mechanism are respectively provided on both sides of the inlet and outlet of the lanes. The feeding end of the first conveying mechanism is provided with a second clamping mechanism. A cache rack is also provided on one side of the inlet and outlet of the lanes. Demoulding device: It is arranged on the side of the second conveying mechanism away from the end of the roadway side. A mechanical arm and a compressive strength testing device are provided on one side of the demoulding device. The mechanical arm is used to deliver the concrete test block demoulded by the demoulding device into the compressive strength testing device. Transfer device: used to receive the concrete-injected mold sent by the first clamping mechanism and transport the mold to the second clamping mechanism.

2. A concrete compressive strength testing system according to claim 1, characterized in that: The first clamping mechanism includes a gantry arranged at the end of the buffer conveying mechanism, a three-axis linkage mechanism is provided on the top of the gantry, the three-axis linkage mechanism is connected to the first clamping mechanism, and the first clamping mechanism is used to clamp and fix the mold.

3. A concrete compressive strength testing system according to claim 2, characterized in that: The first clamping mechanism includes a first connecting plate, which is connected to the first three-axis linkage mechanism. The first connecting plate is provided with a first bidirectional cylinder. The two telescopic parts of the first bidirectional cylinder are both connected to the first clamping plate to drive the two first clamping plates to move toward or away from each other synchronously.

4. A concrete compressive strength testing system according to claim 1, characterized in that: The empty mold feeding mechanism includes a first conveying mechanism, the end of the first conveying mechanism corresponds to the feeding end of the vibrating mechanism, and the end of the first conveying mechanism is provided with a first pushing mechanism to push the empty mold to the vibrating mechanism.

5. A concrete compressive strength testing system according to claim 1, characterized in that: The buffer conveying mechanism includes a second conveying mechanism arranged at one side of the discharge end of the vibrating mechanism, and the vibrating platform is provided with a second pushing mechanism to push the mold injected with concrete into the second conveying mechanism.

6. A concrete compressive strength testing system according to claim 1, characterized in that: The second clamping mechanism includes a bracket arranged on one side of the feed end of the first conveying mechanism, and a horizontal moving drive mechanism is provided on the top of the bracket. The horizontal moving drive mechanism is connected to the vertical lifting mechanism to drive the vertical lifting mechanism to move horizontally and the movement direction is perpendicular to the conveying direction of the first conveying mechanism. The vertical lifting mechanism is connected to the second clamping mechanism.

7. A concrete compressive strength testing system according to claim 6, characterized in that: The second clamping mechanism includes a second connecting plate connected to the vertical lifting mechanism. The second connecting plate is provided with a second bidirectional cylinder. The two telescopic parts of the second bidirectional cylinder are both connected to the second clamping plate to drive the second clamping plate to move toward or away from each other synchronously.

8. A concrete compressive strength testing system according to claim 1, characterized in that: The cache rack includes a frame body, which adopts a step structure. Each step is provided with a test block tray support plate. One side of the step structure for placing the test block tray is provided with a third pushing mechanism installed on the frame body, and the opposite side of the third pushing mechanism is provided with a baffle fixed to the frame body.

9. A concrete compressive strength testing system according to claim 1, characterized in that: The transfer device adopts an AGV vehicle, and the AGV vehicle is provided with a support frame for supporting the mold.

10. A method for operating a concrete compressive strength testing system according to any one of claims 1 to 9, characterized in that: The following steps are involved: The empty mold feeding mechanism sends the empty mold to the vibrating mechanism and to the bottom of the storage hopper; The unloading mechanism delivers the concrete to be sampled into the storage hopper, and the storage hopper injects the concrete into the mold placed by the vibrating mechanism; The vibrating mechanism works to vibrate the concrete. After the vibration is completed, the buffer conveying mechanism sends out the mold filled with concrete, and the first clamping mechanism sends the mold filled with concrete into the transfer device; The transfer device transports the mold filled with concrete to the second clamping mechanism, and the second clamping mechanism clamps the mold filled with concrete and transports the mold filled with concrete to the entrance and exit of the tunnel; The stacker receives the mold filled with concrete and transports it to the initial setting area of ​​the rack to carry out the initial setting of the concrete in the mold; The stacker delivers the concrete after initial setting to the second conveying mechanism together with the mold, and the second conveying mechanism delivers the mold and the initial setting concrete to the demoulding mechanism for demoulding; After demoulding is completed, the robotic arm transfers the concrete test blocks to the buffer rack, and then the stacker sends the test blocks to the curing area of ​​the rack for curing. After curing is completed, the stacker places the cured test blocks on the buffer rack, and the robotic arm moves the concrete test blocks to the compressive strength testing device for compressive strength testing.

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