A cement composition detector and method

Abstract

The application relates to the technical field of detectors, and discloses a cement component detector and method, which comprises a support, a mounting plate arranged on the support, and a sampling unit. The support is used for mounting and connecting the cement component detector with a belt conveyor. The upper surface of the mounting plate is provided with a circular hole. The sampling unit comprises a sampling cylinder arranged in the circular hole and used for sampling bagged cement to be detected on the belt conveyor. The sampling cylinder is coupled with a motion unit, an inflation unit and a limiting unit, and can be switched back and forth from a first state to a second state according to the cement thickness of the sampled bagged cement bag. Because the thickness of the bagged cement is completely random and cannot be artificially controlled, the sampled cement sample can be completely random, the authenticity of sampling is ensured, and the detection result is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of detectors, and in particular to a cement composition detector and method. Background Art

[0002] Cement is an essential material in modern construction projects. Its properties directly impact the stability and durability of building structures, making accurate testing of cement composition crucial. After bagging and before palletizing, cement composition testing is required. The basic principle of cement composition testing is to analyze the main components of cement, such as silicates, aluminates, and ferrites, using a variety of techniques, including physical, chemical, and spectroscopic methods.

[0003] Existing cement composition analyzers commonly use a pre-programmed "random" sampling mechanism. While designed for objectivity, this mechanism suffers from a critical and often overlooked flaw in its operation: the predictability and controllability of the sampling process creates the potential for operators to interfere with sample representativeness and manipulate test results. Operators can introduce substandard materials (such as temporarily adding high-grade raw materials or removing abnormal components) during predetermined "non-sampling" periods or areas, or carefully place "special" samples (such as pre-mixed, standard-compliant powders) near predetermined sampling points to ensure the equipment only "randomly" retrieves the desired, non-representative samples. This compromises sampling authenticity and leads to inaccurate test results. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a cement composition detector and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A cement composition detector, which is arranged on a belt conveyor, comprises:

[0007] A bracket, which is used for installing and connecting the cement composition detector to the belt conveyor;

[0008] A mounting plate is provided on the bracket, wherein a circular hole is formed through the upper surface of the mounting plate;

[0009] The sampling unit includes a sampling barrel, which is arranged in the circular hole. The sampling barrel is used to sample the bagged cement to be tested on the belt conveyor. The sampling barrel has a first state and a second state. The first state is set to, when the sampling barrel is stationary relative to the mounting plate, the sampling barrel can normally sample the bagged cement to be tested. The second state is set to, when the sampling barrel moves relative to the mounting plate, the sampling barrel cannot sample the bagged cement to be tested.

[0010] a limiting unit, which is arranged on the top of the sampling cylinder, and is configured to control the sampling cylinder to switch between a first state and a second state;

[0011] A motion unit and an inflation unit, wherein the motion unit, the inflation unit and the limiting unit are coupled, and the motion unit and the inflation unit are capable of driving the limiting unit so that the limiting unit can control the sampling barrel to switch between the first state and the second state;

[0012] The detection unit is arranged on the bracket and is configured to detect the components of the cement sample after the cement sample is taken out by the sampling tube.

[0013] As a further embodiment of the present invention, the sampling cylinder is slidably mounted on the inner wall of the circular hole, a cavity is provided inside the sampling cylinder for storing the cement sample, an opening is provided on the circumferential outer surface of the sampling cylinder, a discharge port is provided at the bottom end of the sampling cylinder, and a through hole is provided at the top end of the sampling cylinder, and the sampling unit further comprises:

[0014] A conical head is provided inside the discharge port and is used to seal the discharge port;

[0015] a retaining ring, which is slidably mounted on the outer circumferential surface of the sampling cylinder;

[0016] The gate plate is slidably mounted on the inner wall of the sampling tube and can seal the opening. The bottom end of the gate plate is fixedly connected to the upper surface of the retaining ring.

[0017] As a further embodiment of the present invention, the detection unit includes:

[0018] The box body is fixedly mounted on the outer surface of the bracket and is used to hold the cement sample to be tested in the cavity of the sampling tube;

[0019] The infrared spectrum detection head is fixedly installed on the top of the box body and is used to perform infrared spectrum detection on the cement sample in the box body;

[0020] The discharge pipe is arranged on the outer surface of the box body and is used to extract the tested cement out of the box body.

[0021] As a further solution of the present invention, the limiting unit includes:

[0022] A first compression cylinder is fixedly mounted on the top of the sampling cylinder, and an air leakage hole is formed through the end surface of one end of the first compression cylinder;

[0023] a first piston plate slidably mounted on the inner wall of the first compression cylinder, wherein the first piston plate divides the interior of the first compression cylinder into a first chamber and a second chamber;

[0024] A column body is fixedly installed on the outer surface of one end of the first piston plate;

[0025] A support is fixedly installed on the upper surface of the mounting plate, and a mounting shaft is rotatably installed between the inner walls of the support;

[0026] A rotating block is fixedly installed on the outer surface of the mounting shaft, and a bayonet is formed on the outer surface of the rotating block, one end of the column body penetrates the end face of one end of the first compression cylinder and is arranged in the bayonet, and an inclined surface is formed on the top end of the rotating block;

[0027] A second spring is sleeved on the outer surface of the column body, the second spring is arranged in the second cavity, one end of the second spring is fixedly connected with the outer surface of the first piston plate, and the other end of the second spring is fixedly connected with the inner wall of the second cavity;

[0028] A torsion spring is arranged on the outer surface of the mounting shaft, one end of the torsion spring is fixedly installed on the outer surface of the mounting shaft, and the other end of the torsion spring is fixedly connected with the outer surface of the support;

[0029] An electromagnetic exhaust valve is fixedly installed on the outer surface of the first compression cylinder, and the electromagnetic exhaust valve is in communication with the inside of the first cavity.

[0030] As a further scheme of the present application, a discharging unit is arranged between the support and the sampling cylinder, and the discharging unit comprises:

[0031] A rod body is arranged in the inside of the sampling cylinder, and the bottom end of the rod body is fixedly connected with the top end of the conical head;

[0032] A plate body is fixedly installed on the top end of the rod body, and the top end of the rod body penetrates the top end of the sampling cylinder and is slidingly installed thereon;

[0033] A first spring is sleeved on the outer surface of the rod body, one end of the first spring is fixedly connected with the lower surface of the plate body, and the other end of the first spring is fixedly connected with the top end of the sampling cylinder;

[0034] A top column is fixedly installed on the outer surface of the support, and the bottom end of the top column abuts against the upper surface of the plate body.

[0035] As a further scheme of the present application, a driving unit is arranged on the support, and the driving unit comprises:

[0036] An electric telescopic rod is fixedly installed on the outer surface of the side of the support away from the belt conveyor;

[0037] A connecting plate is fixedly installed on the telescopic end of the electric telescopic rod;

[0038] A rotating column is rotatably installed on the lower surface of the connecting plate, the bottom end of the rotating column is fixedly connected with the upper surface of the mounting plate, and a driving groove is arranged on the circumferential outer surface of the rotating column;

[0039] A driving column is fixedly installed on the top end of the support, and one end of the driving column is slidably installed on the inner wall of the driving groove.

[0040] As a further scheme of the present application, the moving unit comprises:

[0041] A sliding rod is fixedly installed on the upper surface of the blocking ring, the top end of the sliding rod penetrates the upper surface of the mounting plate and is slidably installed on the mounting plate;

[0042] A rack is fixedly installed on the outer surface of the sliding rod;

[0043] Two support plates are fixedly installed on the outer surface of the sampling cylinder close to the top end, a disc is rotatably installed between the two support plates, and a protrusion is arranged on the outer surface of the side of the disc close to the electromagnetic exhaust valve;

[0044] A one-way bearing is fixedly installed on the circumferential outer surface of the disc;

[0045] A first gear is fixedly installed on the circumferential outer surface of the one-way bearing;

[0046] A rotating shaft is rotatably installed between the two support plates;

[0047] A second gear is fixedly installed on the circumferential outer surface of the rotating shaft, the rack and the second gear are engaged, and the second gear and the first gear are engaged.

[0048] As a further scheme of the present application, the inflating unit comprises:

[0049] A second compression cylinder is fixedly installed on the upper surface of the mounting plate;

[0050] A second piston plate is slidably installed on the inner wall of the second compression cylinder, and a one-way air inlet nozzle is fixedly installed on the lower surface of the second piston plate;

[0051] A push rod is fixedly installed on the lower surface of the second piston plate, and the bottom end of the push rod is fixedly connected with the top end of the sampling cylinder;

[0052] An air pipe is fixedly installed on the top end of the second compression cylinder, the other end of the air pipe is fixedly connected with the air inlet end of the one-way air inlet valve, and the first cavity is in communication with the inside of the second compression cylinder through the one-way air inlet valve and the air pipe.

[0053] As a further scheme of the present application, a laser sensor is arranged on the outer surface of the support close to the side of the belt conveyor, and the laser sensor can sense the bagged cement transported on the belt conveyor.

[0054] A cement component detection method comprises the following steps:

[0055] S1: The bagged cement is transported intermittently by a belt conveyor, and the cement composition detector is fixedly connected to the designated position of the belt conveyor by a bracket;

[0056] S2: When the bagged cement is intermittently transported to the position of the laser sensor, the electric telescopic rod can be controlled by an electrical signal to perform telescopic movement, so that the sampling tube can complete the sampling;

[0057] S3: After the sampling tube has taken the sample, the sample will be added to the detection unit for infrared spectrum detection of the cement sample in the box to detect the content of chemical components such as silicate, aluminate, and ferrite in the cement;

[0058] S4: By coupling the motion unit, the inflation unit and the limit unit, the sampling tube switches back and forth from the first state to the second state according to the thickness of the cement in the sampling bag, ensuring complete randomness of the sampling.

[0059] The present invention couples a motion unit, an inflation unit and a limit unit, so that the sampling tube switches back and forth from a first state to a second state according to the thickness of cement in the sampling bag. Because the thickness of the bagged cement is completely random and cannot be controlled manually, the sampled cement samples can be completely random, ensuring the authenticity of the sampling and making the detection results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a schematic diagram of the overall structure of a cement composition detector proposed by the present invention;

[0061] Figure 2 This is a structural schematic diagram of a detection unit of a cement composition detector proposed in the present invention;

[0062] Figure 3 This is a schematic diagram of the structure of a driving unit of a cement composition detector proposed in the present invention;

[0063] Figure 4 This is a structural schematic diagram of a sampling unit of a cement composition detector proposed in the present invention;

[0064] Figure 5 This is a schematic diagram of a rod body of a cement composition detector proposed by the present invention;

[0065] Figure 6 This is a cross-sectional schematic diagram of a sampling tube of a cement composition detector proposed by the present invention;

[0066] Figure 7 This is a schematic diagram of a limit unit of a cement composition detector proposed by the present invention;

[0067] Figure 8 This is a cross-sectional schematic diagram of a first compression cylinder of a cement composition detector proposed by the present invention;

[0068] Figure 9 This is a schematic diagram of a motion unit of a cement composition detector proposed by the present invention;

[0069] Figure 10 for Figure 5 A partial enlarged schematic diagram in the middle;

[0070] Figure 11 This is a schematic diagram of a rotating column of a cement composition detector proposed by the present invention;

[0071] Figure 12 This is a schematic diagram of a sliding bar of a cement composition detector proposed in the present invention.

[0072] In the picture:

[0073] 100. Belt conveyor;

[0074] 200, bracket;

[0075] 300, drive unit; 310, electric telescopic rod; 320, connecting plate; 330, rotating column; 331, driving slot; 340, driving column;

[0076] 400, sampling unit; 410, sampling tube; 411, opening; 412, through hole; 420, conical head; 430, retaining ring; 440, gate;

[0077] 500, detection unit; 510, box body; 520, discharge pipe; 530, infrared spectrum detection head;

[0078] 600, mounting plate; 610, round hole;

[0079] 700, discharging unit; 710, rod; 720, plate; 730, first spring; 740, top column;

[0080] 800, limit unit; 810, first compression cylinder; 811, air vent; 820, rotating block; 821, inclined plane; 822, bayonet; 830, torsion spring; 840, support; 850, first piston plate; 860, second spring; 870, column; 880, electromagnetic exhaust valve; 890, one-way air intake valve;

[0081] 900, motion unit; 910, slide bar; 920, support plate; 930, first gear; 931, protrusion; 940, second gear; 950, rack; 960, one-way bearing; 970, rotating shaft;

[0082] 1000, inflation unit; 1100, second compression cylinder; 1200, push rod; 1300, second piston plate; 1310, one-way air inlet nozzle; 1400, air pipe;

[0083] 2000. Laser sensor. DETAILED DESCRIPTION

[0084] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0085] Because the existing cement composition detector has the problem of being interfered with by human beings in sampling representativeness and manipulating the test results during testing. In order to solve this problem, Figure 1 As shown, the present application discloses a cement composition detector, which is arranged on a belt conveyor 100. The cement composition detector includes: a bracket 200, a mounting plate 600, a sampling unit 400, a limiting unit 800, a motion unit 900, an inflation unit 1000 and a detection unit 500. During use, bagged cement is transported intermittently by the belt conveyor 100 to facilitate subsequent stacking. The cement composition detector is fixedly connected to the designated position of the belt conveyor 100 by the bracket 200. A mounting plate 600 is provided on the bracket 200. A circular hole 610 is penetrated through the upper surface of one end of the mounting plate 600. The sampling unit 400 includes a sampling barrel 410. The sampling barrel 410 is arranged in the circular hole 610. The sampling barrel 410 has a first state and a second state. The first state is set to, when the sampling barrel 410 is stationary relative to the mounting plate 600, the sampling barrel 410 can normally sample the bagged cement to be tested on the belt conveyor 100. The second state is set to, when the sampling barrel 410 moves relative to the mounting plate 600, the sampling barrel 410 cannot sample the bagged cement to be tested on the belt conveyor 100.

[0086] In order to enable the sampling tube 410 to switch between the first state and the second state, as shown in FIG. Figure 2As shown, the limiting unit 800 is set at the top of the sampling barrel 410. When the limiting unit 800 limits and fixes the position of the sampling barrel 410, the sampling barrel 410 can sample the bagged cement transported on the upper surface of the belt conveyor 100 in the first state. Because the bagged cement is grabbed and transported by a robot, the distance between two adjacent bags of cement is roughly the same. Because the bagged cement will experience vibration or impact during transportation and handling, the vibration will cause the cement particles inside the bag to settle in the bag, so that the cement in some areas of the bagged cement on the belt conveyor 100 is thicker, while other areas are relatively thinner. This difference in cement thickness is completely random and cannot be set. The sampling barrel 410 uses the different cement heights sampled each time. When the cumulative height of multiple samples reaches a predetermined value, the limiting unit 800 will release the position limit of the sampling barrel 410. At this time, the sampling barrel 410 is in the second state and the sampling barrel 410 can no longer take samples.

[0087] In order to make the limiting unit 800 control the sampling tube 410 to switch between the first state and the second state, as shown in FIG. Figure 2 As shown, the motion unit 900, the inflation unit 1000 and the limiting unit 800 are coupled. When the sampling barrel 410 is in the first state, each time the bagged cement is sampled, it will drive at least one component of the motion unit 900 to move according to the thickness of the cement, so that the motion unit 900 drives at least one component of the limiting unit 800 to move (the specific movement is detailed below). When the cumulative height of multiple samplings of the sampling barrel 410 reaches a predetermined value, the motion unit 900 will drive the limiting unit 800 to release the position limit of the sampling barrel 410, and the sampling barrel 410 enters the second state. Since the sampling barrel 410 enters the second state, the sampling barrel 410 can move relative to the mounting plate 600. Through this movement, the inflation unit 800 1000 drives at least one component in the limiting unit 800 to move (the specific movement is described in detail below). The distance of this movement will be determined according to the thickness of the bagged cement on the belt conveyor 100. When the sampling barrel 410 moves relative to the mounting plate 600 multiple times, the limiting unit 800 can re-limit and fix the position of the sampling barrel 410, so that the sampling barrel 410 enters the first state again and can continue normal sampling. Through this device, the sampling barrel 410 can switch between sampling and non-sampling according to the thickness of the bagged cement. Because the thickness of the bagged cement is completely random and cannot be controlled manually, the sampled cement samples can be completely random, ensuring the authenticity of the sampling and making the test results more accurate.

[0088] In order for the sampling tube 410 to be able to sample the bagged cement, Figure 5As shown, the sampling barrel 410 is slidably mounted on the inner wall of the circular hole 610. A cavity is provided inside the sampling barrel 410 for storing cement samples. An opening 411 is provided on the circumferential outer surface of the sampling barrel 410. A discharge port is provided at the bottom end of the sampling barrel 410. A through hole 412 is provided at the top end of the sampling barrel 410. The air pressure inside the cavity is balanced by the through hole 412, making it easier for the cavity to be filled and discharged. The sampling unit 400 also includes: a conical head 420, a retaining ring 430 and a gate 440. The conical head 420 is arranged inside the discharge port of the sampling barrel 410 and is used to seal the discharge port. When the conical head 420 leaves the discharge port, the cement sample inside the sampling barrel 410 can be discharged from the discharge port. The bottom end of the conical head 420 is conically arranged. When the sampling barrel 410 moves downward, it can drive the conical head 420 to penetrate into the interior of the bagged cement, as shown in FIG. Figure 6 As shown, because the retaining ring 430 is slidably installed on the circumferential outer surface of the sampling tube 410, the retaining ring 430 will be blocked by the cement bag of the bagged cement. As the sampling tube 410 continues to move downward, the retaining ring 430 moves upward relative to the sampling tube 410. Since the gate 440 is slidably installed on the inner wall of the sampling tube 410, it can block the opening 411. The bottom end of the gate 440 is fixedly connected to the upper surface of the retaining ring 430. When the retaining ring 430 moves upward relative to the sampling tube 410, it will drive the gate 440 to move upward relative to the sampling tube 410. At this time, the gate 440 will release the blockage of the opening 411, and the cement dust inside the bagged cement will enter the interior of the sampling tube 410 from the opening 411, thereby completing the sampling work. When the sampling tube 410 leaves the bagged cement, the gate 440 will be driven by the gravity of itself and the retaining ring 430 to slide downward to seal the opening 411 again.

[0089] After the sampling tube 410 has taken the sample, the sample will be added into the detection unit 500. Figure 3 As shown, the detection unit 500 is arranged on the bracket 200, and the detection unit 500 includes: a box body 510, an infrared spectrum detection head 530 and a discharge pipe 520. The box body 510 is fixedly mounted on the outer surface of the bracket 200, and is used to hold the cement sample to be tested in the cavity of the sampling tube 410. The infrared spectrum detection head 530 is fixedly mounted on the top of the box body 510, and is used to perform infrared spectrum detection on the cement sample in the box body 510, thereby detecting the content of chemical components such as silicate, aluminate, and ferrite in the cement. The discharge pipe 520 is fixedly mounted on the outer surface of the box body 510, and one end of the discharge pipe 520 is connected to an external air pump, and the other end is connected to the interior of the box body 510, and is used to extract the cement sample from the box body 510 after the test is completed, so that the cement sample can be tested next time.

[0090] In order to make the sampling tube 410 drive the conical head 420 to penetrate into the interior of the bagged cement, Figure 2As shown, a driving unit 300 is provided on the bracket 200 , and the driving unit 300 includes: an electric telescopic rod 310 , a connecting plate 320 , a rotating column 330 and a driving column 340 . The electric telescopic rod 310 is fixedly mounted on the outer surface of the bracket 200 away from the belt conveyor 100, the connecting plate 320 is fixedly mounted on the telescopic end of the electric telescopic rod 310, the rotating column 330 is rotatably mounted on the lower surface of the connecting plate 320, the bottom end of the rotating column 330 is fixedly connected to the upper surface of the other end of the mounting plate 600, the driving column 340 is fixedly mounted on the top of the bracket 200, and the connecting plate 320 is driven to move downward by the telescopic end of the electric telescopic rod 310, and the connecting plate 320 drives the mounting plate 600 to move downward through the rotating column 330. When the sampling barrel 410 is in the first state, the mounting plate 600 drives the sampling unit 400 to move downward, so that the sampling barrel 410 moves downward close to the belt conveyor 100, and then drives the conical head 420 to penetrate into the interior of the bagged cement for cement sampling.

[0091] In order to facilitate sampling and detection without interference, the box body 510 is set at another position of the bracket 200, so that the sampling tube 410 can transfer the collected cement sample to the position of the box body 510, such as Figure 11 As shown, a driving groove 331 is provided on the outer circumferential surface of the rotating column 330. The driving groove 331 is spirally arranged. One end of the driving column 340 is slidably installed with the inner wall of the driving groove 331. When the rotating column 330 moves up and down, the driving groove 331 and the driving column 340 cooperate to enable the rotating column 330 to rotate itself, thereby driving the mounting plate 600 to move within an angular range. When the mounting plate 600 moves up, as shown in FIG. Figure 3 As shown, the rotating column 330 drives the sampling cylinder 410 to move to the top of the box body 510 through the mounting plate 600, so that the cement sample inside the sampling cylinder 410 can be discharged normally into the interior of the box body 510. When the mounting plate 600 moves downward, the rotating column 330 drives the sampling cylinder 410 to leave the top of the box body 510 through the mounting plate 600, so that the sampling cylinder 410 can sample normally. When the sampling cylinder 410 is sampling and discharging samples, a straight distance up and down is required so that the sampling cylinder 410 will not be swung by the mounting plate 600, so the driving groove 331 is composed of straight grooves at the top and bottom ends and a spiral groove in the middle section.

[0092] In order to allow the cement sample inside the sampling tube 410 to be discharged, Figure 6As shown, a discharging unit 700 is provided between the bracket 200 and the sampling cylinder 410 . The discharging unit 700 includes a rod 710 , a plate 720 , a first spring 730 and a top column 740 . When the bottle is in the closed position, the bottle is in the closed position, and the bottle is in the closed position, so that the bottle can be put into the closed position, and the bottle can be put into the open position, and the bottle can be put into the closed position, and the bottle can be put into the closed position, and the bottle can be put into the closed position, and the bottle can be put into the closed position, so that the bottle can be put into the closed position. When the rod body 710 moves upward, it will drive the sampling cylinder 410 to move upward, thereby driving the rod body 710 to move upward. When the rod body 710 moves up to the bottom end of the top column 740 and abuts against the upper surface of the plate body 720, if the mounting plate 600 continues to move upward, at this time, the top column 740 will drive the rod body 710 to move downward relative to the sampling cylinder 410, and the rod body 710 drives the conical head 420 to move downward relative to the sampling cylinder 410, thereby opening the discharge port opened at the bottom end of the sampling cylinder 410. At this time, the cement sample inside the sampling cylinder 410 can be normally discharged into the interior of the box body 510. When the rod body 710 is squeezed by the top column 740, in order to prevent the sampling cylinder 410 from slipping out of the circular hole 610, the top diameter of the sampling cylinder 410 is larger than the bottom diameter, and the bottom diameter is matched with the circular hole 610.

[0093] Specifically, in order to enable the limiting unit 800 to control the sampling cylinder 410 to switch between the first state and the second state, as shown in FIG. Figure 6 and Figure 10As shown, the limiting unit 800 includes: a first compression cylinder 810, a first piston plate 850, a column 870, a support 840, a rotating block 820, a second spring 860, a torsion spring 830, an electromagnetic exhaust valve 880 and a one-way air intake valve 890. The first compression cylinder 810 is fixedly installed on the top of the sampling cylinder 410, and the first piston plate 850 is slidably installed on the inner wall of the first compression cylinder 810. The first piston plate 850 divides the interior of the first compression cylinder 810 into a first chamber and a second chamber. The first chamber is arranged close to the sampling cylinder 410. When the interior of the first chamber is filled with air of sufficient pressure, since the column 870 is fixedly installed on the outer surface of one end of the first piston plate 850, the compressed air inside the first chamber will drive the first piston plate 850 to move closer to the second chamber. In order to facilitate the movement of the first piston plate 850, an air vent 811 is opened through the end surface of one end of the first compression cylinder 810 to balance the air pressure inside the second chamber. The first piston plate 850 carries The moving column 870 moves away from the first cavity, and because the support 840 is fixedly mounted on the upper surface of the mounting plate 600, a mounting shaft is rotatably mounted between the inner walls of the support 840, and the rotating block 820 is fixedly mounted on the outer surface of the mounting shaft. A bayonet 822 is provided on the outer surface of the rotating block 820. When the column 870 moves away from the first cavity, one end of the column 870 passes through the end face of one end of the first compression cylinder 810 and is inserted into the inside of the bayonet 822, thereby limiting the position of the sampling cylinder 410 along its axial direction. At this time, the sampling cylinder 410 is stationary relative to the mounting plate 600 and is in the first state. The sampling cylinder 410 can move downward with the mounting plate 600, thereby sampling the bagged cement. In order to allow compressed air to enter the first chamber, a one-way air intake valve 890 is fixedly installed on the end face of the other end of the first compression cylinder 810. The one-way air intake valve 890 is connected to the interior of the first chamber. The external air is compressed and squeezed into the interior of the one-way air intake valve 890, thereby entering the interior of the first chamber through the one-way air intake valve 890 and being temporarily stored.

[0094] In order to allow the column 870 to leave the inside of the bayonet 822, the sampling tube 410 is released from the position limit in the direction of its axis, such as Figure 8As shown, the second spring 860 is sleeved on the outer surface of the cylinder 870, the second spring 860 is arranged inside the second cavity, one end of the second spring 860 is fixedly connected to the outer surface of the first piston plate 850, and the other end of the second spring 860 is fixedly connected to the inner wall of the second cavity, the electromagnetic exhaust valve 880 is fixedly installed on the outer surface of the first compression cylinder 810, and the electromagnetic exhaust valve 880 is connected to the interior of the first cavity. When the switch of the electromagnetic exhaust valve 880 is activated, the electromagnetic exhaust valve 880 will open the exhaust port to discharge the compressed air inside the first cavity. At this time, Under the action of 860, the first piston plate 850 drives the column 870 to slide toward the first cavity. At this time, the column 870 will slide out of the bayonet 822, thereby releasing the limit of the sampling cylinder 410 in its axial direction. When the mounting plate 600 drives the sampling cylinder 410 to move downward to prepare for cement sampling, the cement bag will press against the conical head 420 at the bottom of the sampling cylinder 410. If the mounting plate 600 continues to move downward, the sampling cylinder 410 will move upward relative to the mounting plate 600. The sampling cylinder 410 is in the second state and cannot be inserted into the interior of the bagged cement for sampling.

[0095] Specifically, in order to make the sampling tube 410 according to the thickness of the bagged cement in the sampling area on the belt conveyor 100, the column 870 can be disengaged from the bayonet 822, thereby releasing the axial limit of the sampling tube 410, as shown in FIG. Figure 4 and Figure 9 As shown, the motion unit 900 includes: a slide bar 910, a rack 950, two support plates 920, a one-way bearing 960, a first gear 930, a rotating shaft 970, and a second gear 940. The slide bar 910 is fixedly mounted on the upper surface of the retaining ring 430, and the top end of the slide bar 910 passes through the upper surface of the mounting plate 600 and is slidably mounted on the mounting plate 600, as shown in FIG. Figure 12As shown, the rack 950 is fixedly mounted on the outer surface of the slide bar 910, the two support plates 920 are fixedly mounted on the outer surface of the sampling barrel 410 near the top, the rotating shaft 970 is rotatably mounted between the two support plates 920, the second gear 940 is fixedly mounted on the circumferential outer surface of the rotating shaft 970, the rack 950 and the second gear 940 are engaged, when the sampling unit 400 is sampling normally, the sampling barrel 410 will move downward under the drive of the mounting plate 600, thereby being inserted into the interior of the bagged cement. At this time, The retaining ring 430 is blocked by the bag of bagged cement and moves upward relative to the sampling tube 410. The retaining ring 430 drives the rack 950 to move upward relative to the sampling tube 410 through the sliding rod 910, and drives the second gear 940 to rotate through the rack 950. Because a disc is rotatably installed between the two support plates 920, the outer surface of the disc close to the electromagnetic exhaust valve 880 is provided with a protrusion 931, and the one-way bearing 960 is fixedly installed on the circumferential outer surface of the disc. The first gear 930 is fixedly installed on the one-way bearing 9 60, the second gear 940 and the first gear 930 are meshed with each other. When the second gear 940 rotates, it will drive the first gear 930 to rotate. The first gear 930 drives the disc to rotate an angle through the one-way bearing 960, and the disc will drive the protrusion 931 to move an angle. The angle of movement of the protrusion 931 is related to the height of the cement bag contacted by the retaining ring 430. When the sampling cylinder 410 samples multiple times, the retaining ring 430 will contact the bagged cement multiple times. Because of the one-way rotation principle of the one-way bearing 960, the rotation direction of the disc will only rotate in one direction. At this time, the angle range of rotation of the protrusion 931 becomes larger and larger through multiple superposition. When the protrusion 931 rotates to squeeze the switch of the electromagnetic exhaust valve 880, the compressed air in the first chamber inside the first compression cylinder 810 is discharged, and the sampling cylinder 410 is released from the limit and is in the second state and can no longer sample. Through this setting, the sampling cylinder 410 can sample intermittently, avoiding multiple sampling and wasting cement samples.

[0096] In order to reinsert the cylinder 870 into the interior of the bayonet 822, as shown in FIG. Figure 6 and Figure 7As shown, the inflating unit 1000 includes a second compression cylinder 1100, a second piston plate 1300, a push rod 1200, and an air tube 1400.The second compression cylinder 1100 is fixedly mounted on the upper surface of the mounting plate 600, the second piston plate 1300 is slidably mounted on the inner wall of the second compression cylinder 1100, the lower surface of the second piston plate 1300 is fixedly mounted with a one-way air inlet nozzle 1310, the push rod 1200 is fixedly mounted on the lower surface of the second piston plate 1300, the bottom end of the push rod 1200 is fixedly connected to the top end of the sampling cylinder 410, the air pipe 1400 is fixedly mounted on the top end of the second compression cylinder 1100, the other end of the air pipe 1400 is fixedly connected to the air inlet end of the one-way air inlet valve 890, the first chamber is connected to the interior of the second compression cylinder 1100 through the one-way air inlet valve 890 and the air pipe 1400, and when the sampling cylinder 410 is in the second state, the sampling cylinder 410 is relatively mounted Plate 600, when the mounting plate 600 moves down, the sampling cylinder 410 moves upward. At this time, the sampling cylinder 410 is not inserted into the cement bag, so the sampling cylinder 410 drives the retaining ring 430 to move upward at the same time. The retaining ring 430 is stationary relative to the sampling cylinder 410, so that the rack 950 does not drive the second gear 940 to rotate. When the sampling cylinder 410 moves upward relative to the mounting plate 600, the sampling cylinder 410 drives the second piston plate 1300 to move upward through the push rod 1200. The second piston plate 1300 pushes the air in the top space of the second compression cylinder 1100 from the air pipe 1400 into the inside of the one-way air inlet valve 890, and then enters the first chamber of the first compression cylinder 810 for temporary storage. When the sampling cylinder 410 moves up multiple times relative to the mounting plate 600 When the cylinder 870 is extended to the position of the bayonet 822, more air can be compressed into the first chamber of the first compression cylinder 810, thereby driving the column 870 to extend to the position of the bayonet 822. Because the upward movement distance of the sampling cylinder 410 relative to the mounting plate 600 is determined according to the height of the bagged cement bag at the current sampling position, and the height of the cement bag is completely random, the sampling cylinder 410 can be sampled completely randomly. In order for the cylinder 870 to extend to the position of the bayonet 822, when the sampling cylinder 410 moves downward and resets relative to the mounting plate 600, the cylinder 870 can be smoothly inserted into the interior of the bayonet 822, the top of the rotating block 820 is provided with an inclined surface 821, and the torsion spring 830 is provided on the outer surface of the mounting shaft. One end of the torsion spring 830 is in contact with the outer surface of the mounting shaft. The surface is fixedly installed, and the other end of the torsion spring 830 is fixedly connected to the outer surface of the support 840. When the column 870 moves downward relative to the mounting plate 600 as the sampling barrel 410 is reset, the column 870 will abut against the inclined surface 821, thereby squeezing the rotating block 820 open. The rotating block 820 is acted upon by the force of the torsion spring 830. When the column 870 slides to the position of the bayonet 822, the rotating block 820 will reset to the initial position, thereby limiting the position of the column 870, and then limiting the position of the sampling barrel 410, so that the sampling barrel 410 enters the first state and continues to sample the bagged cement. This sampling control method is controlled by a mechanical structure and is completely random and cannot be manually edited or interfered with, thereby ensuring the accuracy of the sampling results.

[0097] A laser sensor 2000 is provided on the outer surface of the bracket 200 close to the belt conveyor 100. The laser sensor 2000 can sense the bagged cement transported on the belt conveyor 100. When the bagged cement is intermittently transported to the position of the laser sensor 2000, the electric telescopic rod 310 can be controlled by an electrical signal to perform telescopic movement, so that the sampling tube 410 completes sampling.

[0098] A cement component detection method comprises the following steps:

[0099] S1: The bagged cement is transported intermittently by the belt conveyor 100, and the cement composition detector is fixedly connected to a designated position of the belt conveyor 100 by the bracket 200;

[0100] S2: When the bagged cement is intermittently transported to the position of the laser sensor 2000, the electric telescopic rod 310 can be controlled by an electrical signal to perform telescopic movement, so that the sampling tube 410 completes sampling;

[0101] S3: After the sampling tube 410 has taken the sample, the sample is added to the detection unit 500 for infrared spectrum detection of the cement sample in the box 510 to detect the content of chemical components such as silicate, aluminate, and ferrite in the cement;

[0102] S4: By coupling the motion unit 900, the inflation unit 1000 and the limit unit 800, the sampling tube 410 switches back and forth from the first state to the second state according to the thickness of the cement bag in the sampling bag, ensuring completely random sampling.

[0103] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A cement component detector, which is arranged on a belt conveyor (100), characterized in that: include: A bracket (200) is used for installing and connecting the cement component detector to the belt conveyor (100); A mounting plate (600) is provided on the bracket (200), wherein a circular hole (610) is formed through the upper surface of the mounting plate (600); A sampling unit (400) includes a sampling barrel (410) and a retaining ring (430), wherein the sampling barrel (410) is disposed in a circular hole (610), and the sampling barrel (410) has a first state and a second state, wherein the first state is configured such that when the sampling barrel (410) is stationary relative to the mounting plate (600), the sampling barrel (410) can normally sample the bagged cement to be tested on the belt conveyor (100), and the second state is configured such that when the sampling barrel (410) moves relative to the mounting plate (600), the sampling barrel (410) cannot sample the bagged cement to be tested, and the retaining ring (430) is slidably mounted on the circumferential outer surface of the sampling barrel (410); a limiting unit (800) disposed on the top of the sampling cylinder (410), wherein the limiting unit (800) is configured to control the sampling cylinder (410) to switch between a first state and a second state; The limiting unit (800) comprises: A first compression cylinder (810) is fixedly mounted on the top end of the sampling cylinder (410), and an air leakage hole (811) is formed through the end surface of one end of the first compression cylinder (810); A first piston plate (850) is slidably mounted on the inner wall of the first compression cylinder (810), and the first piston plate (850) divides the interior of the first compression cylinder (810) into a first chamber and a second chamber; A column (870) fixedly mounted on the outer surface of one end of the first piston plate (850); A support (840) is fixedly mounted on the upper surface of the mounting plate (600), and a mounting shaft is rotatably mounted between the inner walls of the support (840); A rotating block (820) is fixedly mounted on the outer surface of the mounting shaft, a bayonet (822) is provided on the outer surface of the rotating block (820), one end of the column (870) passes through the end surface of one end of the first compression cylinder (810) and is arranged inside the bayonet (822), and a top end of the rotating block (820) is provided with an inclined surface (821); A torsion spring (830) is provided on the outer surface of the mounting shaft, one end of the torsion spring (830) is fixedly mounted on the outer surface of the mounting shaft, and the other end of the torsion spring (830) is fixedly connected to the outer surface of the support (840); an electromagnetic exhaust valve (880) fixedly mounted on the outer surface of the first compression cylinder (810), the electromagnetic exhaust valve (880) being in communication with the interior of the first chamber; A motion unit (900) and an inflation unit (1000), wherein the motion unit (900), the inflation unit (1000) and the limiting unit (800) are coupled, and the motion unit (900) and the inflation unit (1000) are capable of driving the limiting unit (800), so that the limiting unit (800) can control the sampling cylinder (410) to switch between a first state and a second state; The motion unit (900) comprises: A slide bar (910) is fixedly mounted on the upper surface of the retaining ring (430), and the top end of the slide bar (910) passes through the upper surface of the mounting plate (600) and is slidably mounted on the mounting plate (600); a rack (950), the rack (950) being fixedly mounted on the outer surface of the slide bar (910); Two support plates (920) are fixedly mounted on the outer surface of the sampling tube (410) near the top, a disc is rotatably mounted between the two support plates (920), and a protrusion (931) is provided on the outer surface of the disc near the electromagnetic exhaust valve (880); A one-way bearing (960) is fixedly mounted on the outer circumferential surface of the disc; A first gear (930) is fixedly mounted on the circumferential outer surface of the one-way bearing (960); A rotating shaft (970) is rotatably mounted between the two support plates (920); a second gear (940) fixedly mounted on the outer circumferential surface of the rotating shaft (970), the rack (950) and the second gear (940) being meshed with each other, and the second gear (940) and the first gear (930) being meshed with each other; The inflation unit (1000) comprises: A second compression cylinder (1100) is fixedly mounted on the upper surface of the mounting plate (600); A second piston plate (1300) is slidably mounted on the inner wall of the second compression cylinder (1100), and a one-way air inlet nozzle (1310) is fixedly mounted on the lower surface of the second piston plate (1300); A push rod (1200) is fixedly mounted on the lower surface of the second piston plate (1300), and the bottom end of the push rod (1200) is fixedly connected to the top end of the sampling cylinder (410); An air pipe (1400) is fixedly mounted on the top end of the second compression cylinder (1100), the other end of the air pipe (1400) is fixedly connected to the air inlet end of the one-way air inlet valve (890), and the first cavity is connected to the interior of the second compression cylinder (1100) through the one-way air inlet valve (890) and the air pipe (1400); The detection unit (500) is arranged on the bracket (200). The detection unit (500) is configured to perform component detection on the cement sample after the cement sample is taken out by the sampling cylinder (410).

2. The cement component detector according to claim 1, characterized in that: The sampling cylinder (410) is slidably mounted on the inner wall of the circular hole (610). A cavity is provided inside the sampling cylinder (410) for storing cement samples. An opening (411) is provided on the circumferential outer surface of the sampling cylinder (410). A discharge port is provided at the bottom end of the sampling cylinder (410). A through hole (412) is provided at the top end of the sampling cylinder (410). The sampling unit (400) further comprises: A conical head (420) is arranged inside the discharge port and is used to seal the discharge port; The gate plate (440) is slidably mounted on the inner wall of the sampling tube (410) and can seal the opening (411). The bottom end of the gate plate (440) is fixedly connected to the upper surface of the retaining ring (430).

3. The cement component detector according to claim 1, characterized in that: The detection unit (500) comprises: A box body (510) is fixedly mounted on the outer surface of the bracket (200) and is used to hold the cement sample to be tested in the cavity of the sampling tube (410); An infrared spectrum detection head (530) is fixedly mounted on the top of the box body (510) and is used to perform infrared spectrum detection on the cement sample in the box body (510); The discharge pipe (520) is provided on the outer surface of the box body (510) and is used to extract the cement after testing out of the box body (510).

4. The cement component detector according to claim 1, characterized in that: The limiting unit (800) further includes: The second spring (860) is sleeved on the outer surface of the column (870), and the second spring (860) is arranged inside the second cavity. One end of the second spring (860) is fixedly connected to the outer surface of the first piston plate (850), and the other end of the second spring (860) is fixedly connected to the inner wall of the second cavity.

5. The cement component detector according to claim 2, characterized in that: A discharge unit (700) is provided between the bracket (200) and the sampling cylinder (410), and the discharge unit (700) comprises: A rod body (710) is disposed inside the sampling cylinder (410), wherein the bottom end of the rod body (710) is fixedly connected to the top end of the conical head (420); The plate (720) is fixedly mounted on the top end of the rod (710), and the top end of the rod (710) passes through the top end of the sampling tube (410) and is slidably mounted thereon; a first spring (730) sleeved on the outer surface of the rod body (710), one end of the first spring (730) being fixedly connected to the lower surface of the plate body (720), and the other end of the first spring (730) being fixedly connected to the top end of the sampling cylinder (410); A top column (740) is fixedly mounted on the outer surface of the bracket (200), and the bottom end of the top column (740) abuts against the upper surface of the plate body (720).

6. The cement component detector according to claim 1, characterized in that: A driving unit (300) is provided on the bracket (200), and the driving unit (300) comprises: an electric telescopic rod (310) fixedly mounted on the outer surface of the bracket (200) on a side away from the belt conveyor (100); A connecting plate (320) fixedly mounted on the telescopic end of the electric telescopic rod (310); A rotating column (330) is rotatably mounted on the lower surface of the connecting plate (320), the bottom end of the rotating column (330) is fixedly connected to the upper surface of the mounting plate (600), and a driving groove (331) is provided on the circumferential outer surface of the rotating column (330); A driving column (340) is fixedly mounted on the top end of the bracket (200), and one end of the driving column (340) is slidably mounted on the inner wall of the driving groove (331).

7. The cement component detector according to claim 1, characterized in that: A laser sensor (2000) is provided on the outer surface of the bracket (200) on a side close to the belt conveyor (100), and the laser sensor (2000) is capable of sensing bagged cement transported on the belt conveyor (100).

8. A cement component detection method, characterized in that: The cement component detector according to any one of claims 1 to 7 comprises the following steps: S1: intermittently transporting bagged cement via a belt conveyor (100), and fixing a cement component detector to a designated position of the belt conveyor (100) via a bracket (200); S2: When the bagged cement is intermittently transported to the position of the laser sensor (2000), the electric telescopic rod (310) can be controlled by an electrical signal to perform telescopic movement, thereby allowing the sampling tube (410) to complete sampling; S3: After the sampling tube (410) has taken the sample, the sample is added to the detection unit (500) for infrared spectrum detection of the cement sample in the box (510) to detect the content of chemical components such as silicate, aluminate, and ferrite in the cement; S4: By coupling the motion unit (900), the inflation unit (1000) and the limiting unit (800), the sampling tube (410) switches back and forth from the first state to the second state according to the thickness of the cement bag in the sampling bag, thereby ensuring completely random sampling.

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