Concrete admixture solid content detector

Abstract

The utility model discloses a concrete admixture solid content detector which comprises a bottom plate, a shell is arranged at the top of the bottom plate, a movable door is arranged on the shell, a lifting unit, a moving unit, a vibrating unit and a heating unit are arranged in the shell, and a buzzer is arranged outside the shell. The lifting unit, the moving unit, the vibration unit, the heating unit and the buzzer are all controlled by the detector control system to lift, move, vibrate, heat and give an alarm, so that the detection process is safe and orderly, the buzzer gives an alarm after detection is completed, an operator is reminded of detection completion and detection sample taking down, and intelligence and high efficiency are achieved. Moreover, the arrangement of the housing enables the detection process to be good in sealing performance and high in anti-interference capability, reduces the number of times of detection, detection errors and working intensity, and improves the detection efficiency and precision.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a solid content detector for concrete admixtures. Background Technique

[0002] Concrete admixtures are chemical substances that can significantly improve the performance of concrete when incorporated during the mixing process. Although the addition of admixtures plays a certain role in improving the performance of concrete, the selection, addition method, and adaptability of admixtures will seriously affect their development. Therefore, admixtures are also a double-edged sword, and their effective components need to be controlled within a certain range to ensure the quality of concrete. In particular, the solid content in liquid admixtures is a physical quantity that directly reflects the amount of effective components in the admixtures and is also one of the main detection indicators of admixtures.

[0003] The existing method for measuring the solid content of liquid admixtures is to place the admixture sample in a clean covered petri dish, put it into an oven, bake it at 100 - 105 °C for 30 minutes, take it out immediately and place it in a desiccator, weigh it after cooling for 30 minutes, and repeat the above steps until constant weight, and then calculate its solid content. Constant weight means weighing with an analytical balance with a precision of one ten-thousandth, and the mass difference between two weighings does not exceed 0.0005 g. The analytical balance with a precision of one ten-thousandth is a very precise instrument and equipment, and its placement environment requires constant temperature, light avoidance, dust prevention, and prevention of air flow. Therefore, it is time-consuming and laborious to achieve constant weight throughout the detection process, has high technical requirements for operators, and has large errors in detection results. Content of the Utility Model

[0004] The utility model provides a solid content detector for concrete admixtures, aiming to shorten the detection time of the solid content of concrete admixtures at the construction site, improve the detection efficiency and the accuracy of detection results.

[0005] To achieve its purpose, the utility model adopts the following technical solutions:

[0006] A solid content detector for concrete admixtures includes a bottom plate. On the top of the bottom plate, there is a housing. There is a movable door on the housing. Inside the housing, there are a lifting unit, a moving unit, a vibrating unit, and a heating unit. There is a buzzer outside the housing, and the lifting unit, the moving unit, the vibrating unit, the heating unit, and the buzzer are all controlled by the detector control system.

[0007] Furthermore, the lifting units are symmetrically arranged on one side of the top of the bottom plate. The lifting unit includes a first stepping motor. The output end of the first stepping motor is connected to the bottom end of a T-shaped lead screw. A lead screw nut is connected to the T-shaped lead screw. A lead screw support is connected to the lead screw nut. On both sides of the lead screw support, there are symmetrically arranged optical axis fixing blocks, and a vertical optical axis passes through the optical axis fixing blocks;

[0008] Further, the moving unit includes linear guide rails symmetrically arranged on the top of the bottom plate. A slider is arranged on the linear guide rails. A guide rail support plate is connected to the top of the slider, and an analytical balance is arranged on the top of the guide rail support plate. On one side of the top of the bottom plate between the linear guide rails, a second stepping motor is arranged. The output end of the second stepping motor is connected to one end of a ball screw, and the other end of the ball screw is connected to the analytical balance. A balance tray and a limit block are arranged on the top of the analytical balance.

[0009] Further, a vibration unit is connected to the lifting unit near the second stepping motor. The vibration unit includes an electromagnetic disk bracket connected to the side of the optical axis fixing block. A horizontal electromagnet disk frame is connected to the free end of the electromagnetic disk bracket. An electromagnet and a vibration motor are arranged on the electromagnet disk frame.

[0010] Further, a heating unit is connected to the lifting unit far from the second stepping motor. The heating unit includes a servo bracket connected to the side of the optical axis fixing block. A servo is arranged on one side of the servo bracket close to the moving unit. A light source lamp holder is connected to the servo, and an infrared light source is connected to one side of the light source lamp holder close to the moving unit.

[0011] Further, the electromagnet is a disk-shaped electromagnet, which is distributed along the circumference of the bottom of the electromagnet disk frame.

[0012] Further, the infrared light source is a circular infrared tube, and an opaque protective cover is arranged on the top of the infrared light source.

[0013] Further, the analytical balance is an analytical balance with a precision reaching ten-thousandths place.

[0014] Further, the vibration motor is a miniature strong vibration motor, which is symmetrically arranged on the top of the electromagnet disk frame.

[0015] Further, the top of the T-shaped screw is supported by a bearing; after the screw nut is supported by a box-type bearing, a screw holding seat is connected.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The solid content detector for concrete admixtures provided by the present utility model is provided with a lifting unit, a moving unit, a vibration unit, a heating unit and a buzzer. The lifting unit, the moving unit, the vibration unit, the heating unit and the buzzer are all controlled by the detector control system to perform lifting, moving, vibrating, heating and alarming, making the detection process safe and orderly. After the detection is completed, the buzzer alarms to remind the operator that the detection is over and take down the detection sample. It is intelligent and efficient, with a fast detection speed and a high degree of automation.

[0018] 2. The solid content detector for concrete admixtures provided by the present utility model uses an infrared light source for heating, which improves the detection speed. By controlling the height of the light source, it is applicable to different types of admixtures, with strong practicability. Moreover, the analytical balance is detachably connected to the guide rail support plate. During verification / calibration, the analytical balance can be directly detached, reducing the number of movements. The zoned operation can also reduce test errors.

[0019] 3. The solid content detector for concrete admixtures provided by the present utility model has a good sealing property during the detection process due to the setting of the outer shell, with strong anti-interference ability, reducing the number of detections, detection errors and working intensity, and improving the detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the detector of the present utility model;

[0021] Figure 2 is a schematic internal structural diagram of the detector of the present utility model;

[0022] Figure 3 is Figure 1 the front view of;

[0023] Figure 4 is Figure 1 the top view of;

[0024] Figure 5 is Figure 1 the left view of;

[0025] In the figure: 1. bottom plate; 2. guide rail support plate; 3. linear guide rail; 4. slider; 5. screw support seat; 6. screw nut; 7. ball screw; 8. analytical balance; 9. second stepping motor; 10. T-shaped screw; 11. servo support; 12. servo; 13. infrared light source; 14. bearing; 15. optical axis; 16. box-type bearing; 17. optical axis fixing block; 18. light source lamp holder; 19. electromagnet disc frame; 20. electromagnet; 21. electromagnetic disc support; 22. vibration motor; 23. outer shell; 24. first stepping motor; 25. balance tray; 26. buzzer; 27. movable door. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, when terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or positional relationship indicated thereby is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model. In addition, when terms such as "first", "second", "third" appear, they are only for descriptive purposes and should not be construed as indicating or implying relative importance.

[0028] The present utility model is a solid content detector for concrete admixtures, including a bottom plate 1. A housing 23 is provided on the top of the bottom plate 1. A movable door 27 is provided on the housing 23 for loading samples. A lifting unit, a moving unit, a vibrating unit and a heating unit are provided inside the housing 23. A buzzer 26 is provided outside the housing 23, and the lifting unit, the moving unit, the vibrating unit, the heating unit and the buzzer 26 are all controlled by the detector control system.

[0029] The lifting unit is symmetrically arranged on one side of the top of the bottom plate 1. The lifting unit includes a first stepping motor 24, which is fixed on the bottom plate 1 by screws through countersunk holes. The output end of the first stepping motor 24 is connected to the bottom end of a T-shaped lead screw 10 through a rigid coupling. The top of the T-shaped lead screw 10 is supported by a bearing 14. A lead screw nut 6 is connected to the T-shaped lead screw 10. After being supported by a box-type bearing 16, the lead screw nut 6 is connected to a lead screw holder 5. Light axis fixing blocks 17 are symmetrically arranged on both sides of the lead screw holder 5, and a vertical light axis 15 passes through the light axis fixing blocks 17.

[0030] The moving unit includes linear guide rails 3 symmetrically arranged on the top of the bottom plate 1. Sliders 4 are arranged on the linear guide rails 3. A guide rail support plate 2 is connected to the top of the slider 4. An analytical balance 8 is installed on the top of the guide rail support plate 2 through fixing screws. On one side of the top of the bottom plate 1 between the linear guide rails 3, a second stepping motor 9 is provided. The linear guide rails 3 and the second stepping motor 9 are both fixed on the bottom plate 1 by screws through countersunk holes. The output end of the second stepping motor 9 is connected to one end of a ball screw 7 through a rigid coupling. The other end of the ball screw 7 is connected to the analytical balance 8. The analytical balance 8 moves left and right along the ball screw 7 powered by the second stepping motor 9. A balance tray 25 and a limit block are provided on the top of the analytical balance 8. The analytical balance 8 is an analytical balance with a precision reaching ten-thousandths place.

[0031] A vibration unit is connected to the lifting unit near the second stepping motor 9. The vibration unit includes an electromagnetic disk bracket 21 connected to the side of the optical axis fixing block 17. The free end of the electromagnetic disk bracket 21 is connected to a horizontal electromagnet disk rack 19. An electromagnet 20 and a vibration motor 22 are provided on the electromagnet disk rack 19. The electromagnet 20 is three disk-shaped electromagnets, which are distributed along the circumference of the bottom of the electromagnet disk rack 19. The vibration motor 22 is a miniature strong vibration motor, which is symmetrically installed on the top of the electromagnet disk rack 19 through screws to realize the spreading work of the samples in the balance tray 25.

[0032] A heating unit is connected to the lifting unit far from the second stepping motor 9. The heating unit includes a servo bracket 11 connected to the side of the optical axis fixing block 17. A servo 12 is provided on the side of the servo bracket 11 close to the moving unit. A light source lamp holder 18 is connected to the servo 12. An infrared light source 13 is connected to the side of the light source lamp holder 18 close to the moving unit. The angle of the infrared light source 13 is adjusted through the light source lamp holder 18. After the servo 12 is connected to the servo bracket 11, it is fixed on the optical axis fixing block 17 and moves up and down with the lead screw holder 5 to drive the adjustment of the height of the infrared light source 13. The infrared light source 13 is a circular infrared tube, and an opaque protective cover is provided on the top of the infrared light source 13.

[0033] Before detecting the solid content of the concrete admixture, an appropriate amount of sample is dropped into the balance tray 25, and a carrier is added so that the concrete admixture can be dispersed and distributed in the balance tray 25. Adding a carrier is to avoid the admixture being in a paste or gel state during detection. Therefore, different carriers, such as "quartz sand" or "filter paper", need to be selected according to the type of admixture during detection to remove the moisture in the admixture.

[0034] During detection, operate the detector control system to turn on the detector, control the second stepping motor 9 of the moving unit to work. The rolling screw rod 7 drives the analytical balance 8 to move towards the vibration unit through the power provided by the second stepping motor 9, and stops when the balance tray 25 is directly below the electromagnet disk rack 19. The electromagnet 20 first adsorbs the balance tray 25 with the added admixture sample and carrier on the electromagnet 20, and then the detector control system controls the vibration motor 22 to start working, and performs high-frequency vibration on the admixture sample and carrier in the balance tray 25 for 15 seconds to make the admixture sample evenly adhere to the carrier, facilitating uniform heating.

[0035] After the vibration is completed, the electromagnet disk rack 19 adsorbed with the balance tray 25 starts to move downward and stops moving after hitting the limit block of the analytical balance 8. Subsequently, the electromagnet 20 is powered off to place the balance tray 25 in the weighing area of the analytical balance 8 for the first weighing.

[0036] After the first weighing is completed, the detector control system controls the operation of the second stepping motor 9. The rolling screw rod 7 drives the analytical balance 8 to move towards the heating unit by the power provided by the second stepping motor 9 until the analytical balance 8 moves directly below the infrared light source 13. Subsequently, the detector control system selects different irradiation distances of the infrared light source 13 according to the type of admixture. Then, the detector control system controls the operation of the first stepping motor 24 of the lifting unit, and the screw rod holder 5 moves up and down along the T-shaped screw rod, driving the infrared light source 13 to be adjusted to the optimal heating height of the admixture, and starting to uniformly heat the admixture sample.

[0037] In this embodiment, when the value change of the analytical balance 8 is less than 0.0005 grams within 120 seconds, it indicates that the admixture sample has reached constant weight. At this time, the infrared light source 13 stops heating, and the detector control system starts to automatically record the data of the admixture sample at constant weight. After the recording is completed, the analytical balance 8 moves directly below the electromagnet 20, and the buzzer 26 starts to alarm, reminding the operator that the detection is over and to remove the admixture sample. The buzzer 26 stops alarming until the operator opens the movable door 27. Finally, the electromagnet 20 moves downward to adsorb the balance tray 25 and then moves upward to the sampling height. The operator takes out the balance tray 25 and the admixture sample at the movable door 27 to complete the sampling.

[0038] After the detection is completed, the operator promptly exports the test data and shuts down the detector for future use.

[0039] The above-described embodiments are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A concrete admixture solid content detector, characterized in that: The invention comprises a bottom plate (1), a shell (23) is provided on the top of the bottom plate (1), a movable door (27) is provided on the shell (23), a lifting unit, a moving unit, a vibration unit and a heating unit are provided inside the shell (23), a buzzer (26) is provided outside the shell (23), and the lifting unit, the moving unit, the vibration unit, the heating unit and the buzzer (26) are all controlled by a detector control system.

2. A concrete admixture solid content detector as claimed in claim 1, characterized in that: The lifting unit is symmetrically arranged on one side of the top of the base plate (1), and comprises a first stepper motor (24). The output end of the first stepper motor (24) is connected to the bottom end of a T-shaped lead screw (10). A lead screw nut (6) is connected to the T-shaped lead screw (10), and a lead screw holder (5) is connected to the lead screw nut (6). Optical axis fixing blocks (17) are symmetrically arranged on both sides of the lead screw holder (5), and a vertical optical axis (15) is arranged through the optical axis fixing block (17).

3. A concrete admixture solid content detector as claimed in claim 2, characterized in that: The mobile unit comprises a linear guide rail (3) symmetrically arranged on the top of the base plate (1), a slider (4) being arranged on the linear guide rail (3), a guide rail support plate (2) being connected to the top of the slider (4), and an analytical balance (8) being arranged on the top of the guide rail support plate (2); a second stepping motor (9) is arranged on one side of the top of the base plate (1) between the linear guide rails (3), an output end of the second stepping motor (9) is connected to one end of a ball screw (7), the other end of the ball screw (7) is connected to the analytical balance (8), and a balance tray (25) and a limit block are arranged on the top of the analytical balance (8).

4. A concrete admixture solid content detector as claimed in claim 3, characterized in that: A vibration unit is connected to the lifting unit near the second stepper motor (9), and the vibration unit comprises an electromagnetic disk bracket (21) connected to the side of the optical axis fixing block (17), and the free end of the electromagnetic disk bracket (21) is connected to a horizontal electromagnet disk rack (19), and the electromagnet disk rack (19) is provided with an electromagnet (20) and a vibration motor (22).

5. A concrete admixture solid content detector as claimed in claim 4, characterized in that: A heating unit is connected to the lifting unit away from the second stepper motor (9), the heating unit comprising a steering gear bracket (11) connected to the side of the optical axis fixing block (17), a steering gear (12) being provided on the side of the steering gear bracket (11) close to the moving unit, a light source lamp holder (18) being connected to the steering gear (12), and an infrared light source (13) being connected to the side of the light source lamp holder (18) close to the moving unit.

6. A concrete admixture solid content detector as claimed in claim 4, characterized in that: The electromagnets (20) are disc-shaped electromagnets and are distributed along the circumference of the bottom of the electromagnet disc frame (19).

7. A concrete admixture solid content detector as claimed in claim 5, characterized in that: The infrared light source (13) is a circular infrared tube, and a light-proof protective cover is provided on the top of the infrared light source (13).

8. A concrete admixture solid content detector as claimed in claim 3, characterized in that: The analytical balance (8) is an analytical balance with an accuracy of ten thousandths.

9. A concrete admixture solid content detector as claimed in claim 5, characterized in that: The vibration motor (22) is a micro strong vibration motor and is symmetrically arranged on the top of the electromagnet disc frame (19).

10. A concrete admixture solid content detector according to any one of claims 2 to 9, characterized in that: The top of the T-shaped screw rod (10) is supported by a bearing (14); the screw rod nut (6) is supported by a box-type bearing (16) and is connected to a screw rod holder (5).

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