Powder density detection device

Abstract

The utility model discloses a powder density detection device, which relates to the technical field of density detection and comprises a Lee bottle, a guide component, a feeding component, an adjusting component and a water bath component. The material guiding assembly is erected above the Lee's bottle and is provided with a material guiding channel, and the material guiding channel extends into a bottle neck of the Lee's bottle; the feeding assembly is used for feeding powder into the material guide channel; the adjusting assembly is connected with the material guiding assembly and used for adjusting and changing the position of the material guiding channel extending into the Lee bottle. The Lee flask is arranged in the water bath assembly, and the water bath assembly is provided with an ultrasonic module. The powder density detection device disclosed by the utility model can realize automatic feeding of the powder to be detected and can improve the detection precision.

Description

Technical Field

[0001] The utility model relates to the technical field of density detection, and particularly relates to a powder density detection device. Background Art

[0002] The density of powder is generally detected according to the cement density determination method of GB / T 208-2014. First, a certain amount of kerosene is filled into a Le Chatelier flask, and then a fixed mass of powder is also filled into the Le Chatelier flask, and the kerosene is allowed to fully soak the powder particles. The volume of the powder is equal to the volume of the liquid displaced by the powder. The difference between the two data read from the Le Chatelier flask is the volume of the liquid displaced by the powder. After knowing the volume and mass of the powder, the density of the powder can be calculated.

[0003] However, when loading the powder into the Le Chatelier flask, the powder is likely to adhere to the wall of the slender neck of the Le Chatelier flask or splash out from the bottle mouth. Since the mass of the powder is pre-weighed, the powder adhering to the wall or splashing out will cause the actual volume of the powder to decrease, and finally the density measurement is inaccurate. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a powder density detection device, which can realize the automatic feeding of the powder to be measured and improve the detection accuracy.

[0005] The powder density detection device according to the embodiment of the utility model includes: a Le Chatelier flask;

[0006] A material guiding component, the material guiding component is erected above the Le Chatelier flask, the material guiding component has a material guiding channel, and the material guiding channel extends into the bottleneck of the Le Chatelier flask;

[0007] A feeding component, the feeding component is used for feeding the powder into the material guiding channel;

[0008] An adjusting component, the adjusting component is connected with the material guiding component, and the adjusting component is used for adjusting and changing the position where the material guiding channel extends into the Le Chatelier flask;

[0009] A water bath component, the Le Chatelier flask is placed in the water bath component, and the water bath component is provided with an ultrasonic module.

[0010] The powder density detection device according to the embodiment of the utility model has at least the following beneficial effects: the feeding component is used to feed a fixed mass of powder, and the powder enters the Leather flask through the material guiding component without splashing; the adjusting component is used to change the position of the material guiding channel extending into the Leather flask, and as the feeding of the powder gradually increases, kerosene is prevented from being contaminated by the material guiding channel and causing the powder to adhere to the material guiding channel; the water bath component is used to maintain the test environment temperature at a constant value, and the Leather flask is vibrated by the ultrasonic module to mix the kerosene and the powder.

[0011] According to some embodiments of the utility model, the adjustment assembly includes a guide frame and a movable part, the guiding direction of the guide frame is parallel to the bottleneck of the Lester flask, the movable part is arranged on the guide frame and moves along the guiding direction of the guide frame, and the material guiding assembly is connected to the movable part.

[0012] According to some embodiments of the utility model, the guide frame is a guide rod with a thread, the movable part is sleeved on the guide rod and cooperates with the guide rod thread, and a first driving mechanism is provided. The first driving mechanism is transmission connected to the guide rod to drive the guide rod to rotate circumferentially.

[0013] According to some embodiments of the utility model, the material guiding assembly includes a first barrel and a hopper, one end of the hopper is connected to the side wall of the first barrel, and the other end has a conduit, the conduit constitutes the material guiding channel, the internal space of the first barrel is connected to the conduit, and the feeding assembly is arranged inside the first barrel.

[0014] According to some embodiments of the utility model, the feeding assembly includes a second barrel and a second driving mechanism, the second barrel is arranged inside the first barrel, and the second barrel is coaxial with the first barrel, the second barrel is provided with a accommodating chamber, the accommodating chamber has a feed port and a discharge port, the feed port is provided with an openable and closable cover, the discharge port extends to the inner wall of the first barrel, the second driving mechanism is transmission-connected to the second barrel, the second driving mechanism is used to drive the second barrel to rotate circumferentially, and the moving path of the discharge port covers the connection position between the hopper and the first barrel.

[0015] According to some embodiments of the present utility model, the second driving mechanism is a motor, the motor is connected to the adjustment assembly, the motor includes an output shaft and a housing, the first barrel is connected to the housing, and the second barrel is connected to the output shaft.

[0016] According to some embodiments of the present invention, the water bath assembly has a water tank, and a flexible support pad is laid on the bottom of the water tank.

[0017] According to some embodiments of the present utility model, a jaw assembly is provided, and the jaw assembly clamps the pycnometer.

[0018] According to some embodiments of the present utility model, the jaw assembly is an electrically controlled jaw, and a control assembly is further provided. The control assembly is electrically connected to the jaw assembly, the control assembly is electrically connected to the water bath assembly, and the control assembly is electrically connected to the adjustment assembly.

[0019] According to some embodiments of the present utility model, a sponge pad is provided on the wall surface of the pycnometer where the jaw assembly is used to contact.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0021] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0022] Figure 1 is a schematic structural diagram of a powder density detection device according to an embodiment of the present utility model;

[0023] Figure 2 is a schematic structural diagram of a material guiding assembly and a feeding assembly according to an embodiment of the present utility model.

[0024] Reference Numerals in the Drawings:

[0025] Pycnometer 100, Material Guiding Assembly 200, Material Guiding Channel 210, First Cylinder 220, Hopper 230, Feeding Assembly 300, Second Cylinder 310, Accommodation Chamber 311, Second Driving Mechanism 320, Adjustment Assembly 400, Guide Frame 410, Movable Member 420, First Driving Mechanism 430, Water Bath Assembly 500, Support Pad 510, Jaw Assembly 600, Control Assembly 700. Detailed Embodiments

[0026] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0027] In the description of the present utility model, it should be understood that regarding the orientation description, for example, the orientation or positional relationship indicated by up, down, etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, "a plurality of" refers to more than two. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0029] In the description of the present utility model, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0030] The powder density is generally detected according to the cement density determination method of GB / T 208 - 2014. First, a certain amount of kerosene is filled into a Le Chatelier flask, and then a fixed mass of powder is also filled into the Le Chatelier flask, and the kerosene is allowed to fully soak the powder particles. The volume of the powder is equal to the volume of the liquid displaced by the powder. The difference between the two data read from the Le Chatelier flask is the volume of the liquid displaced by the powder. After knowing the volume and mass of the powder, the density of the powder can be calculated. Among them, after the Le Chatelier flask is filled with a certain amount of kerosene, the first data is read; after the powder is filled into the Le Chatelier flask and the kerosene fully soaks the powder, the second data is read.

[0031] However, when filling the powder into the Le Chatelier flask, the powder is likely to adhere to the wall of the slender neck of the Le Chatelier flask or splash out from the bottle mouth. Since the mass of the powder is pre-weighed, the powder adhering to the wall or splashing out will both cause the actual volume of the powder to decrease, resulting in inaccurate density measurement in the end. Or a funnel is used for guiding the material, but the neck of the funnel is too long and is easy to contact the kerosene liquid level, causing the powder to adhere to the funnel neck; the neck of the funnel is too short and will cause the powder to splash when falling, and will also adhere to the slender neck of the Le Chatelier flask. Therefore, a funnel with an appropriate neck length needs to be selected, and the loading process is cumbersome.

[0032] Finally, after the loading is completed, the Le Chatelier flask needs to be shaken until there are no bubbles in the kerosene, that is, the kerosene fully soaks the powder. Manually shaking the Le Chatelier flask requires proficiency in skills, otherwise it is easy to cause the slender neck of the Le Chatelier flask to break and shatter, and the operation is relatively dangerous.

[0033] Refer to Figure 1As shown in the figure, a powder density detection device according to an embodiment of the present utility model includes a Le Chatelier flask 100, a material guiding assembly 200, a feeding assembly 300, an adjusting assembly 400, and a water bath assembly 500.

[0034] The Le Chatelier flask 100 is pre-filled with a certain amount of kerosene, and the first data reading is performed.

[0035] The material guiding assembly 200 is installed above the Le Chatelier flask 100. The material guiding assembly 200 has a material guiding channel 210, and the material guiding channel 210 extends into the bottleneck of the Le Chatelier flask 100; the feeding assembly 300 is used to feed the powder into the material guiding channel 210.

[0036] After weighing a certain amount of powder, the mass of the powder is recorded. The powder is placed in the feeding assembly 300, and the feeding assembly 300 automatically feeds the powder. The feeding assembly 300 cooperates with the material guiding assembly 200. The feeding assembly 300 feeds the powder, and the powder enters the Le Chatelier flask 100 through the material guiding channel 210 of the material guiding assembly 200. Since the material guiding channel 210 of the material guiding assembly 200 extends into the Le Chatelier flask 100, the powder will not adhere to the slender neck of the Le Chatelier flask 100.

[0037] At the same time, the adjusting assembly 400 is connected to the material guiding assembly 200, and the adjusting assembly 400 is used to adjust and change the position where the material guiding channel 210 extends into the Le Chatelier flask 100. That is, when the feeding assembly 300 feeds the powder evenly, the adjusting assembly 400 can also control the material guiding channel 210 to rise at a constant speed. That is to say, the powder entering the Le Chatelier flask 100 causes the kerosene liquid level to rise, and at the same time, the material guiding channel 210 is also driven to rise synchronously by the adjusting assembly 400, so as to keep a fixed distance between the outlet of the material guiding channel 210 and the kerosene liquid level. The kerosene will not contact the material guiding channel 210 and cause the powder to adhere to the material guiding channel 210, nor will the material guiding channel 210 cause the powder to splash when it falls due to being too shallowly inserted into the Le Chatelier flask 100. The less the volume loss of the weighed powder, the more accurate the powder density obtained through calculation.

[0038] The Le Chatelier flask 100 is placed in the water bath assembly 500, and the water bath assembly 500 is provided with an ultrasonic module. Because the volume of kerosene is easily changed by the change of the ambient temperature, the second data read on the Le Chatelier flask 100 is inaccurate. Therefore, the water bath assembly 500 is used to keep the temperature of the entire detection environment constant and improve the accuracy of the second data reading. The ultrasonic module in the water bath assembly 500 can generate ultrasonic waves, which are transmitted into the Le Chatelier flask 100 to vibrate the kerosene, so that the kerosene fully soaks the powder and fully discharges the bubbles in the kerosene, eliminating the influence of the bubbles on the second data reading. The powder density detection device provided by the present utility model can improve the detection accuracy of the powder density.

[0039] It can be understood that the adjusting assembly 400 includes a guiding frame 410 and a movable member 420. The guiding direction of the guiding frame 410 is parallel to the bottleneck of the Le Chatelier flask 100. The movable member 420 is arranged on the guiding frame 410 and moves along the guiding direction of the guiding frame 410. The material guiding assembly 200 is connected to the movable member 420.

[0040] Generally, after the Le Chatelier flask 100 is placed, its bottleneck / slender neck is in a vertical state. The guiding frame 410 is preferably arranged vertically, and the movable member 420 moves vertically along the guiding frame 410 to change the height of the material guiding assembly 200. The change in the height of the material guiding assembly 200 is also the change in the depth of the material guiding channel 210 extending into the bottleneck of the Le Chatelier flask 100. The movable member 420 moves on the guiding frame 410. One way is that the guiding frame 410 is a threaded guide rod, the movable member 420 is sleeved on the guide rod and is in threaded cooperation with the guide rod, and a first driving mechanism 430 is provided. The first driving mechanism 430 is in transmission connection with the guide rod to drive the guide rod to rotate circumferentially.

[0041] The guide rod rotates under the transmission of the first driving mechanism 430, and drives the movable member 420 to rise or fall along the guide rod through threaded cooperation. In the initial state, that is, when the powder has not been put into the Le Chatelier flask 100 yet, the movable member 420 is at the lowest position. The lowest position where the movable member 420 is located means that the material guiding channel 210 is close to the kerosene liquid level in the Le Chatelier flask 100, but the material guiding channel 210 does not contact the kerosene liquid level and there is a certain distance interval. As the powder is added to the Le Chatelier flask 100, the kerosene liquid level rises accordingly. At the same time, the first driving mechanism 430 drives the guide rod to rotate to drive the movable member 420 to rise, that is, the material guiding channel 210 rises. In some embodiments, the first driving mechanism 430 drives the material guiding assembly 200 to rise at a distance of 1 mm - 5 mm every 10 s - 20 s. For example, it rises 5 mm every 10 s, or rises 1 mm every 20 s.

[0042] In another embodiment, the guiding frame 410 can be a rack, the driving mechanism can be a motor and a gear is provided on the output shaft of the motor, and the gear is in meshing transmission with the rack. The motor is fixed on the movable member 420. When the motor drives the gear to rotate, the meshing transmission between the gear and the rack will drive the movable member 420 to rise or fall along the rack.

[0043] Refer to Figure 2 As shown, it can be understood that the material guiding assembly 200 includes a first material cylinder 220 and a hopper 230. One end of the hopper 230 is connected to the side wall of the first material cylinder 220, and the other end has a conduit, and the conduit constitutes the material guiding channel 210. The internal space of the first material cylinder 220 is communicated with the conduit, and the feeding assembly 300 is arranged inside the first material cylinder 220.

[0044] The feeding assembly 300 is inside the first barrel 220, and pours the powder into the first barrel 220. When pouring the powder, the feeding assembly 300 ensures that the powder falls on the connection between the hopper 230 and the first barrel 220. The powder falls from the hopper 230 along the guide channel 210 formed by the conduit into the Leer bottle 100, and there is no powder attached to the bottleneck wall of the Leer bottle 100. In combination with the first barrel 220, a more specific feeding assembly 300 structure is provided below to cooperate with the first barrel 220 to achieve quantitative and uniform feeding of the powder.

[0045] For example, it can be understood that the feeding assembly 300 includes a second barrel 310 and a second driving mechanism 320, the second barrel 310 is arranged inside the first barrel 220, and the second barrel 310 is coaxial with the first barrel 220, the second barrel 310 is provided with a accommodating chamber 311, the accommodating chamber 311 has a feed port and a discharge port, the feed port is provided with a cover that can be opened and closed, and the discharge port extends to the inner wall of the first barrel 220, the second driving mechanism 320 is transmission-connected to the second barrel 310, the second driving mechanism 320 is used to drive the second barrel 310 to rotate circumferentially, and the moving path of the discharge port covers the connection position between the hopper 230 and the first barrel 220.

[0046] First, open the cover at the feed port, place all the weighed powder in the accommodating chamber 311, and close the cover. Since the discharge port of the accommodating chamber 311 extends to the inner wall of the first barrel 220, the powder is blocked by the inner wall of the first barrel 220 until the second drive mechanism 320 drives the second barrel 310 to rotate, so that the discharge port moves to the connection position between the hopper 230 and the first barrel 220. When the discharge port moves to the connection position between the hopper 230 and the first barrel 220, the discharge port is connected to the hopper 230, and the powder can enter the hopper 230 and enter the Lethen flask 100 along the material guide channel 210. If the second barrel 310 is controlled to rotate at a constant speed, the powder can periodically enter the hopper 230, that is, the powder can be periodically and quantitatively put into the Lithium flask 100. In combination with the first driving mechanism 430 driving the material guide assembly 200 to rise at a constant speed, the material guide channel 210 will never contact the rising kerosene liquid level, and the powder will not adhere to the wall of the material guide channel 210, thereby avoiding the reduction of the powder volume and improving the accuracy of density detection. In some embodiments, the second driving mechanism 320 drives the second barrel 310 to rotate once every 10s to 20s to put the powder.

[0047] It can be understood that the second driving mechanism 320 is a motor, which is connected to the adjustment assembly 400 , and the motor includes an output shaft and a housing, the first barrel 220 is connected to the housing, and the second barrel 310 is connected to the output shaft.

[0048] The output shaft of the motor is the rotating part, and the housing is the fixed part. The motor is connected to the adjusting component 400, generally referring to the fixed connection between the housing of the motor and the adjusting component 400, and the adjusting component 400 drives the motor to move up or down. At this time, the first cylinder 220 is connected to the housing of the motor, and when the motor moves up or down, it can drive the first cylinder 220 to move up or down, that is, the hopper 230 and its material guiding channel 210 move up or down. At the same time, the first cylinder 220 and the housing of the motor remain stationary together, and the motor can drive the second cylinder 310 to rotate through the output shaft, and the second cylinder 310 rotates relative to the first cylinder 220 to change the positional relationship between the discharge port and the hopper 230.

[0049] It can be understood that the water bath component 500 has a water storage tank, and a flexible support pad 510 is laid at the bottom of the water storage tank.

[0050] The Leeb bottle 100 is placed on the support pad 510. When the ultrasonic module vibrates the Leeb bottle 100, the flexible support pad 510 can play a buffering role for the Leeb bottle 100 to prevent the Leeb bottle 100 from breaking. The flexible support pad 510 can use sponge material.

[0051] It can be understood that a jaw component 600 is provided, and the jaw component 600 clamps the Leeb bottle 100.

[0052] The jaw component 600 is used to fix the Leeb bottle 100. The Leeb bottle 100 is placed in the water bath component 500. If the buoyancy force on the Leeb bottle 100 is greater than its own gravity, the Leeb bottle 100 will float. To completely prevent the Leeb bottle 100 from floating, the Leeb bottle 100 is fixed by the jaw component 600 to overcome the buoyancy force generated by the drainage of the Leeb bottle 100.

[0053] It can be understood that the jaw component 600 is an electric control jaw, and a control component 700 is also provided. The control component 700 is electrically connected to the jaw component 600, the control component 700 is electrically connected to the water bath component 500, and the control component 700 is electrically connected to the adjusting component 400.

[0054] The control component 700 is used to control the clamping action of the jaw component 600. When the ultrasonic module in the water bath component 500 is enabled, in order to allow the Leeb bottle 100 to vibrate and make the kerosene fully penetrate the powder, the control component 700 can control the jaw component 600 to loosen appropriately to provide a small range of movement space for the Leeb bottle 100.

[0055] It can be understood that a sponge pad is provided on the wall surface of the jaw component 600 for contacting the Leeb bottle 100.

[0056] The sponge pad is flexible. It can buffer when the gripper assembly 600 grips the Liebig flask 100, avoiding crushing the neck of the Liebig flask 100 by the gripper assembly 600. Also, when the ultrasonic module vibrates the Liebig flask 100, it can prevent the neck from colliding with the gripper assembly 600 and breaking.

[0057] In the above embodiment, preferably, the temperature of the water bath assembly 500 is set at 20 °C.

[0058] In the above embodiment, multiple Liebig flasks 100 can be provided, and correspondingly, the same number of hoppers 230, material guiding channels 210 and accommodating cavities 311 are synchronously provided. As Figure 1 shown in the structure, two Liebig flasks 100 are provided, and the two Liebig flasks 100 are synchronously subjected to density detection, and the calculated densities can be averaged to improve the detection accuracy.

[0059] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge scope of those of ordinary skill in the art to which the present invention pertains.

Claims

1. A powder density detection device, characterized in that: include: Levitra (100); A material guiding component (200), the material guiding component (200) being mounted above the Lein flask (100), the material guiding component (200) having a material guiding channel (210), the material guiding channel (210) extending into the bottleneck of the Lein flask (100); A feeding assembly (300), the feeding assembly (300) being used to feed powder into the material guiding channel (210); an adjusting component (400), the adjusting component (400) being connected to the material guiding component (200), and the adjusting component (400) being used to adjust and change the position of the material guiding channel (210) extending into the Lethe flask (100); A water bath component (500), wherein the Lethe flask (100) is placed in the water bath component (500), and the water bath component (500) is provided with an ultrasonic module.

2. The powder density detection device according to claim 1, characterized in that: The adjustment assembly (400) comprises a guide frame (410) and a movable part (420); the guide direction of the guide frame (410) is parallel to the bottleneck of the Lethen flask (100); the movable part (420) is arranged on the guide frame (410) and moves along the guide direction of the guide frame (410); and the material guiding assembly (200) is connected to the movable part (420).

3. The powder density detection device according to claim 2, characterized in that: The guide frame (410) is a guide rod with a thread, the movable member (420) is sleeved on the guide rod and matched with the guide rod thread, and is provided with a first driving mechanism (430), the first driving mechanism (430) is transmission-connected with the guide rod to drive the guide rod to rotate circumferentially.

4. The powder density detection device according to claim 1, characterized in that: The material guiding assembly (200) comprises a first material barrel (220) and a hopper (230), one end of the hopper (230) is connected to the side wall of the first material barrel (220), and the other end has a conduit, the conduit constituting the material guiding channel (210), the internal space of the first material barrel (220) is connected to the conduit, and the feeding assembly (300) is arranged inside the first material barrel (220).

5. The powder density detection device according to claim 4, characterized in that: The feeding assembly (300) includes a second barrel (310) and a second driving mechanism (320), wherein the second barrel (310) is arranged inside the first barrel (220), and the second barrel (310) is coaxial with the first barrel (220), the second barrel (310) is provided with a accommodating chamber (311), the accommodating chamber (311) has a feed port and a discharge port, the feed port is provided with a cover plate that can be opened and closed, and the discharge port extends to the inner wall of the first barrel (220), the second driving mechanism (320) is transmission-connected to the second barrel (310), the second driving mechanism (320) is used to drive the second barrel (310) to rotate circumferentially, and the moving path of the discharge port covers the connection position between the hopper (230) and the first barrel (220).

6. The powder density detection device according to claim 5, characterized in that: The second driving mechanism (320) is a motor, which is connected to the adjustment assembly (400). The motor comprises an output shaft and a housing, the first barrel (220) is connected to the housing, and the second barrel (310) is connected to the output shaft.

7. The powder density detection device according to claim 1, characterized in that: The water bath assembly (500) comprises a water tank, the bottom of which is provided with a flexible support pad (510).

8. The powder density detection device according to claim 1, characterized in that: A clamping jaw assembly (600) is provided, and the clamping jaw assembly (600) clamps the Lethe flask (100).

9. The powder density detection device according to claim 8, characterized in that: The clamping jaw assembly (600) is an electrically controlled clamping jaw, and is also provided with a control assembly (700). The control assembly (700) is electrically connected to the clamping jaw assembly (600), the control assembly (700) is electrically connected to the water bath assembly (500), and the control assembly (700) is electrically connected to the adjustment assembly (400).

10. The powder density detection device according to claim 8 or 9, characterized in that: A sponge pad is provided on the wall surface of the clamping jaw assembly (600) for contacting the Lethen flask (100).

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