Mortar fluidity detection device

Abstract

The utility model provides a mortar fluidity detection device. The mortar fluidity detection device comprises a support frame, a mixing assembly and a measuring assembly, the supporting frame is provided with a table board extending in the horizontal plane. The mixing assembly is movably mounted on the supporting frame and is suitable for stirring raw materials to obtain mortar; and the measuring assembly is mounted on the supporting frame and is suitable for receiving the mortar from the mixing assembly and uniformly discharging the mortar to the table board so as to obtain the expansion degree of the mortar which is completely spread and is in a static state, and the fluidity of the mortar is evaluated according to the expansion degree.

Description

Technical Field

[0001] At least one embodiment of this utility model relates to the field of mortar performance testing technology, and more specifically, to a mortar fluidity testing device. Background Technology

[0002] Waterproof mortar is a special type of mortar used in construction projects. It is mainly composed of cement, fine aggregate, waterproofing agent, admixtures and water. Waterproof mortar can form a solid waterproof layer in key parts of buildings such as foundations, basements, and pools, effectively blocking water penetration and thus protecting the building structure from water damage.

[0003] In the preparation of waterproof mortar, fluidity testing is an indispensable step. However, traditional manual testing methods are not only inefficient, but also often fail to accurately determine the diameter when measuring the mortar flow diameter, as it relies on manual measurement with a ruler, affecting the accuracy of the test results. To improve testing efficiency and accuracy, the application of waterproof mortar fluidity testing instruments has become particularly important. These instruments assess fluidity by introducing mortar into a test container, using specific tools such as steel rods for pressure or stirring, and then recording the flow distance or time using non-contact measurement technology. Nevertheless, the entire process, from mortar preparation to testing, still requires manual operation step by step, leaving considerable room for efficiency improvement.

[0004] Therefore, in order to solve the above-mentioned technical problems, there is an urgent need for a device for testing the fluidity of waterproof mortar, which aims to comprehensively improve the overall efficiency from mortar preparation to fluidity testing, so as to meet the needs of modern construction projects for high-efficiency and high-quality testing. Utility Model Content

[0005] In view of this, in order to solve at least one of the above-mentioned and other technical problems in the prior art, the present invention provides a mortar fluidity testing device, which can directly mix raw materials to prepare mortar and test the fluidity of the generated mortar, thereby improving the overall efficiency and testing quality of mortar preparation and fluidity testing.

[0006] This utility model provides a mortar flowability testing device, comprising: a support frame having a platform extending in a horizontal plane; a mixing component movably mounted on the support frame for mixing raw materials to obtain mortar; and a measuring component mounted on the support frame, the measuring component being adapted to receive the mortar from the mixing component and uniformly distribute the mortar onto the platform to obtain the spread of the mortar when it is fully spread and in a static state, and to evaluate the flowability of the mortar based on the spread.

[0007] According to an embodiment of the present invention, the measuring assembly includes: a measuring bucket, movably mounted on the support frame in a vertical direction, the measuring bucket having a first state in which the bottom opening abuts against the table surface to receive the mortar, and a second state in which the opening is removed from the table surface to evenly distribute the mortar onto the table surface; and a measuring unit, mounted on the support frame, adapted to obtain the spread of the mortar when it is fully spread on the table surface and in a static state, so as to evaluate the fluidity of the mortar.

[0008] According to an embodiment of the present invention, the measuring unit includes a measuring disc, which is installed on the support frame. The measuring disc is located between the platform and the measuring hopper and is concentrically arranged with the measuring hopper, and is suitable for measuring the spread of the mortar. The measuring disc is configured as a ring, which is suitable for allowing the bottom opening of the measuring hopper in the first state to pass through the measuring disc and abut against the platform, and for allowing the mortar discharged from the measuring hopper in the second state to pass through the measuring disc and fall onto the platform.

[0009] According to an embodiment of the present invention, the measuring unit includes at least one measuring ruler configured to extend radially in the measuring bucket, suitable for measuring the spread of the mortar on the platform.

[0010] According to an embodiment of the present invention, the mixing component includes: a mixing box installed on the support frame, the lower end of the mixing box being provided with a discharge pipe communicating with the measuring component; and a stirring unit rotatably installed inside the mixing box, suitable for stirring the raw materials placed in the mixing box into the mortar.

[0011] According to an embodiment of the present invention, the stirring unit includes: a rotating shaft rotatably mounted inside the mixing chamber; a first drive motor mounted outside the mixing chamber for driving the rotating shaft to rotate; and a plurality of stirring rods spaced apart on the rotating shaft, configured to extend radially along the rotating shaft for rotating with the rotating shaft to stir the raw materials to obtain the mortar.

[0012] According to an embodiment of the present invention, the mixing unit further includes at least one scraper, which is mounted on the rotating shaft via a rotating frame. The scraper abuts against the inner wall of the mixing box and is adapted to rotate with the rotating shaft to scrape off the mortar adhering to the inner wall.

[0013] According to an embodiment of the present invention, a drive assembly is also included, which is installed on the support frame and is adapted to drive the measuring bucket to move in the vertical direction, so that the measuring bucket switches between the first state and the second state.

[0014] According to an embodiment of the present invention, the drive assembly includes: at least one lead screw rotatably mounted on the support frame, the lead screw being configured to extend in a vertical direction; a mounting bracket threadedly connected to the lead screw, the mounting bracket being slidably mounted in a groove provided on the support frame, the groove being configured to extend in a vertical direction, the mounting bracket being connected to the measuring bucket; and a second drive motor mounted on the support frame, adapted to drive the lead screw to rotate, thereby driving the mounting bracket to move in a vertical direction.

[0015] According to an embodiment of the present invention, the driving component is also adapted to drive the mixing component and the measuring bucket to move synchronously in the vertical direction, so that the mixing component and the measuring bucket maintain a fixed distance.

[0016] According to embodiments of this invention, by integrating a support frame, a mixing component, and a measuring component, efficient and automated testing of mortar flowability is achieved. This device can precisely and evenly distribute the mortar prepared by the mixing component onto a horizontal platform and obtain the spread of the mortar in a static state after it has been fully spread, thereby accurately evaluating the mortar's flowability. This significantly improves the efficiency and accuracy of the testing and reduces human error. Attached Figure Description

[0017] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0018] Figure 1 A perspective view of the mortar fluidity testing device according to an embodiment of the present invention is shown schematically.

[0019] Figure 2 A schematic cross-sectional view of a mortar fluidity testing device according to an embodiment of the present invention is shown.

[0020] Figure 3 An enlarged view of the stirring unit according to an embodiment of the present invention is shown schematically.

[0021] In the accompanying drawings, the meanings of the reference numerals are as follows:

[0022] 1. Support frame;

[0023] 11. Countertop;

[0024] 12. Support section;

[0025] 13. Slide groove;

[0026] 2. Hybrid components;

[0027] 21. Mixing box;

[0028] 211. Feed pipe;

[0029] 212. Discharge pipe;

[0030] 213. Valves;

[0031] 22. Stirring unit;

[0032] 221. Shaft;

[0033] 222. Stirring rod;

[0034] 223. First drive motor;

[0035] 224. Rotating frame;

[0036] 225. Scraper;

[0037] 3. Measurement components;

[0038] 31. Measuring bucket;

[0039] 32. Measurement unit;

[0040] 321. Measuring disc;

[0041] 322. Measuring ruler;

[0042] 4. Driver components;

[0043] 41. Lead screw;

[0044] 42. Mounting bracket;

[0045] 421. Sliding part;

[0046] 43. Second drive motor;

[0047] 44. Transmission wheel;

[0048] 45. Transmission belt; Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0050] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0051] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0052] When using expressions such as "at least one of A, B, and C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C. Similarly, when using expressions such as "at least one of A, B, or C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C.

[0053] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference in the accompanying drawings and are not intended to limit the scope of protection of this utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this utility model.

[0054] Figure 1 A perspective view of the mortar fluidity testing device according to an embodiment of the present invention is shown schematically. Figure 2 A schematic cross-sectional view of a mortar flowability testing device according to an embodiment of the present invention is shown.

[0055] An embodiment of this utility model provides a mortar fluidity testing device, such as... Figure 1 and Figure 2 As shown, it includes: a support frame 1, a mixing component 2, and a measuring component 3. The support frame 1 is provided with a platform 11 extending in a horizontal plane; the mixing component 2 is movably mounted on the support frame 1 and is suitable for mixing raw materials to obtain mortar; and the measuring component 3 is mounted on the support frame 1 and is suitable for receiving mortar from the mixing component 2 and uniformly distributing the mortar onto the platform 11 to obtain the spreadability of the mortar when it is fully spread and in a static state, and to evaluate the fluidity of the mortar based on the spreadability.

[0056] According to the above setup, the mixing component 2 can directly mix the raw materials for mortar preparation to obtain mortar, which is then discharged to the measuring component 3 for flowability testing. This eliminates the need for operators to prepare and transport the mortar, improving testing efficiency. Furthermore, the platform 11 of the support frame 1 is constructed to be horizontal. The mortar evenly discharged using the measuring component 3 can freely flow and spread out on the platform to form a disc shape. The diameter of the fully spread and stationary mortar is the mortar's spreadability; a larger disc diameter indicates better mortar flowability. This device significantly improves the automation and accuracy of testing, reduces human error, and enhances testing efficiency and engineering quality control.

[0057] In one illustrative embodiment, such as Figure 1 and Figure 2 As shown, the measuring assembly 3 includes a measuring bucket 31 and a measuring unit 32. The measuring bucket 31 is movably mounted on the support frame 1 in the vertical direction. The measuring bucket 31 has a first state in which the bottom opening abuts against the table surface 11 to receive mortar, and a second state in which the opening moves away from the table surface 11 to evenly distribute the mortar onto the table surface 11. The measuring unit 32 is mounted on the support frame 1 and is suitable for obtaining the spread of mortar that is fully spread on the table surface 11 and in a static state to evaluate the fluidity of the mortar.

[0058] According to the above configuration, the measuring component 3, through the combined use of the measuring bucket 31 and the measuring unit 32, effectively improves the accuracy and efficiency of mortar flowability testing. The vertically movable design of the measuring bucket 31 allows it to hold mortar from the mixing component 2 in its first state, and in its second state, allows the mortar to flow evenly onto the platform 11 under gravity, ensuring uniform spreading of the mortar on the platform 11. Meanwhile, the measuring unit 32 can accurately measure the spread of the mortar in a static state, thereby objectively evaluating its flowability, reducing errors during operation, and improving the automation level of the testing process, providing a more reliable testing method for mortar quality control.

[0059] In one illustrative embodiment, such as Figure 1 and Figure 2 As shown, the measuring unit 32 includes a measuring disc 321, which is installed on the support frame 1. The measuring disc 321 is located between the table surface 11 and the measuring hopper 31, forming a space for the mortar to spread freely. The measuring disc 321 and the measuring hopper 31 are concentrically arranged, which is suitable for measuring the spread of the mortar. The measuring disc 321 is constructed into a ring shape, which is suitable for the bottom opening of the measuring hopper 31 in the first state to pass through the measuring disc 321 and abut against the table surface 11, and for the mortar discharged from the measuring hopper 31 in the second state to pass through the measuring disc 321 and fall onto the table surface 11.

[0060] According to the above-described configuration, by constructing the measuring disc 321 in a ring shape and setting it concentrically with the measuring hopper 31, the spread of the mortar can be accurately measured during the process of being discharged from the measuring hopper 31 onto the platform 11, thereby effectively assessing the mortar's fluidity. This layout not only improves the accuracy of the measurement but also allows the mortar to spread freely without interference, reducing human error and improving testing efficiency and mortar quality control standards.

[0061] In detail, the measuring disc 321 is equipped with a ring-shaped size scale, which can measure the diameter of any radial direction after the mortar is spread out, so as to accurately obtain the spread of the mortar.

[0062] In one illustrative embodiment, such as Figure 1 and Figure 2 As shown, the measuring unit 32 includes at least one measuring ruler 322, which is configured to extend radially in the measuring bucket 31 and is suitable for measuring the spread of mortar on the measuring platform 11.

[0063] According to the above configuration, the measuring unit 32, by including at least one measuring ruler 322, enables direct measurement of the mortar spread on the worktable 11. The measuring ruler 322 extends radially into the measuring hopper 31, accurately reading the maximum diameter of the mortar spreading outwards from the center, thereby assessing the mortar's fluidity. This simplifies the measurement process, improves accuracy and efficiency, and provides a convenient tool for rapid detection of mortar fluidity.

[0064] In one illustrative embodiment, such as Figure 2 As shown, the mixing component 2 includes: a mixing box 21, which is installed on the support frame 1, and a discharge pipe 212 connected to the measuring component 3 is provided at the lower end of the mixing box 21; and a stirring unit 22, which is rotatably installed in the mixing box 21 and is suitable for stirring the raw materials placed in the mixing box 21 into mortar.

[0065] According to the above configuration, by setting up the mixing tank 21 and the stirring unit 22, the raw materials are effectively stirred in the mixing tank 21, forming a uniform mortar. The connection design between the discharge pipe 212 of the mixing tank 21 and the measuring component 3 ensures that the mortar can be smoothly transferred to the measuring component for flowability testing. This design realizes the integration of mortar preparation and testing.

[0066] In one illustrative embodiment, such as Figure 2 As shown, a feed pipe 211 is also provided at the top of the mixing box 21, through which the raw materials are fed into the mixing box 21 for stirring.

[0067] In one illustrative embodiment, such as Figure 2As shown, the mixing component 2 also includes a valve 213 installed on the discharge pipe 212, which is suitable for controlling the opening of the discharge pipe 212 to open after the raw materials are mixed and prepared into mortar, so as to discharge the mortar through the discharge pipe 212 to the measuring component 3.

[0068] Figure 3 An enlarged view of the stirring unit according to an embodiment of the present invention is shown schematically.

[0069] In one illustrative embodiment, such as Figure 2 and Figure 3 As shown, the mixing unit 22 includes: a rotating shaft 221 rotatably mounted inside the mixing chamber 21; a first drive motor 223 mounted outside the mixing chamber 21 for driving the rotating shaft 221 to rotate; and a plurality of mixing rods 222 spaced apart on the rotating shaft 221 and configured to extend radially along the rotating shaft 221 for rotating with the rotating shaft 221 to mix raw materials to obtain mortar.

[0070] According to the above configuration, through the cooperation of the rotating shaft 221 and the first drive motor 223, and the radial extension layout of multiple stirring rods 222, the stirring unit 22 can efficiently and uniformly stir the raw materials to prepare uniform mortar, ensuring the uniformity and efficiency of the stirring process, so as to ensure the accurate detection of the subsequent mortar fluidity.

[0071] In detail, the rotating shaft 221 is configured to extend in the vertical direction, and multiple stirring rods 222 are arranged in multiple sets around the rotating shaft 221 and distributed at intervals in the vertical direction to fully mix the raw materials and form a uniform mortar.

[0072] In one illustrative embodiment, such as Figure 2 and Figure 3 As shown, the mixing unit 22 also includes at least one scraper 225, which is mounted on the rotating shaft 221 via a rotating frame 224. The scraper 225 abuts against the inner wall of the mixing box 21 and is adapted to rotate with the rotating shaft 221 to scrape off the mortar adhering to the inner wall. Specifically, the scraper 225 and a plurality of mixing rods 222 are distributed at intervals in the circumferential direction of the rotating shaft 221.

[0073] According to the above configuration, the scraper 225 ensures that the mortar adhering to the inner wall of the mixing tank 21 can be effectively scraped off and reintegrated into the mixing process during the mixing process, thereby avoiding mortar waste and improving the utilization rate of raw materials. Simultaneously, the spacing between the scraper 225 and the mixing rod 222 around the rotating shaft 221 allows the mixing and scraping actions to be performed simultaneously, further enhancing the uniformity and efficiency of the mixing. Furthermore, during the mortar discharge process, the mortar adhering to the inner wall of the mixing tank 21 can be scraped off by the scraper and discharged together, further improving the utilization rate of raw materials.

[0074] According to embodiments of the present invention, such as Figure 2 As shown, there are two scrapers 225, which are symmetrically installed on the rotating shaft 221. Between the two scrapers 225, there are two sets of multiple stirring rods 222 that are spaced apart in the vertical direction.

[0075] In one illustrative embodiment, such as Figure 2 As shown, it also includes a drive assembly 4, mounted on the support frame 1, which is used to drive the measuring bucket 31 to move in the vertical direction, enabling precise switching of the measuring bucket 31 between a first state (containing mortar) and a second state (discharging mortar). This improves the ease of operation.

[0076] Detailed, such as Figure 2 As shown, the drive assembly 4 includes: at least one lead screw 41 rotatably mounted on the support frame 1, the lead screw 41 being configured to extend in the vertical direction; a mounting frame 42 threadedly connected to the lead screw 41, the mounting frame 42 being slidably mounted on a slide groove 13 provided on the support frame 1, the slide groove 13 being configured to extend in the vertical direction, the mounting frame 42 being connected to the measuring bucket 31; and a second drive motor 43 mounted on the support frame 1, adapted to drive the lead screw 41 to rotate, thereby driving the mounting frame 42 to move in the vertical direction.

[0077] According to the above configuration, by employing at least one vertically extending lead screw 41, a threaded mounting bracket 42, and a second drive motor 43, the drive assembly 4 can achieve precise vertical movement control of the measuring bucket 31. The threaded engagement between the lead screw 41 and the mounting bracket 42, and the sliding mechanism of the mounting bracket 42 within the slide groove 13, ensure smooth and adjustable movement of the measuring bucket 31.

[0078] In one illustrative embodiment, such as Figure 1 and Figure 2 As shown, the support frame 1 also includes two support parts 12, which are configured to extend in the vertical direction and are symmetrically arranged around the table surface 11. The two support parts 12 are symmetrically provided with slide grooves 13 extending in the vertical direction, and each of them is rotatably provided with a lead screw 41. The mounting frame 42 is symmetrically provided with two sliding parts 421, which are installed in the slide grooves 13 and threadedly connected to the lead screw 41.

[0079] The output end of the second drive motor 43 is connected to one lead screw 41 and is connected to another lead screw through a transmission wheel 44 and a conveyor belt 45. This utility model is not limited to this. The second drive motor 43 can also be connected to multiple lead screws 41 by other transmission mechanisms such as gears; or a second drive motor 43 matching the number of lead screws 41 can be set to drive the corresponding lead screws 41 to rotate at the same time.

[0080] In an alternative illustrative embodiment, the support 12 includes, but is not limited to, two, and may be other numbers, configured to be evenly spaced around the circumference of the table 11. Similarly, the number of lead screws 41 and sliding parts 421 matches the number of support 12 to provide stable support for the mounting frame 32 and the connected measuring bucket 31.

[0081] In one illustrative embodiment, such as Figure 1 and Figure 2 As shown, the drive component 4 is also suitable for driving the mixing component 2 and the measuring bucket 31 to move synchronously in the vertical direction, so that the mixing component 2 and the measuring bucket 31 maintain a fixed distance.

[0082] According to the above configuration, by driving the mixing component 2 and the measuring hopper 31 to move synchronously in the vertical direction and maintaining a fixed distance between them, it is ensured that the mortar prepared by the mixing component 2 can be accurately and continuously delivered to the measuring hopper 31.

[0083] The embodiments of the present invention have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of the present invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the present invention, and all such substitutions and modifications should fall within the scope of the present invention.

Claims

1. A mortar fluidity detection device, characterized by, The application relates to a mortar testing device, comprising: a support frame (1) provided with a horizontal table (11); a mixing assembly (2) movably mounted on the support frame (1) and adapted to stir raw materials to obtain mortar; a testing assembly (3) mounted on the support frame (1) and adapted to receive the mortar from the mixing assembly (2) and uniformly discharge the mortar onto the table (11) to obtain the spread of the mortar in a fully spread and static state, and evaluate the fluidity of the mortar according to the spread. The testing assembly (3) comprises:

2. The mortar fluidity detection device according to claim 1, wherein a measuring bucket (31) movably mounted on the support frame (1) in a vertical direction, the measuring bucket (31) having a first state of abutting a bottom opening of the measuring bucket (31) to the table (11) to contain the mortar, and a second state of separating the opening from the table (11) to uniformly discharge the mortar onto the table (11); and a measuring unit (32) mounted on the support frame (1) and adapted to obtain the spread of the mortar in a fully spread and static state on the table (11) to evaluate the fluidity of the mortar. The measuring unit (32) comprises a measuring disc (321) mounted on the support frame (1) and located between the table (11) and the measuring bucket (31) and concentrically arranged with the measuring bucket (31) and adapted to measure the spread of the mortar.

3. The mortar fluidity detection device according to claim 2, wherein The measuring disc (321) is annular and adapted to allow the bottom opening of the measuring bucket (31) in the first state to abut the table (11) through the measuring disc (321), and allow the mortar discharged by the measuring bucket (31) in the second state to fall onto the table (11) through the measuring disc (321). The measuring unit (32) comprises at least one measuring scale (322) extending in a radial direction of the measuring bucket (31) and adapted to measure the spread of the mortar on the table (11).

4. The mortar fluidity detection device according to claim 2, wherein The mixing assembly (2) comprises:

5. The apparatus for detecting the fluidity of mortar according to any one of claims 1 to 4, wherein a mixing box (21) mounted on the support frame (1) and provided with a discharge pipe (212) at a lower end of the mixing box (21) and in communication with the testing assembly (3); and a stirring unit (22) rotatably mounted in the mixing box (21) and adapted to stir raw materials placed in the mixing box (21) into mortar. The stirring unit (22) comprises:

6. The mortar fluidity detection device according to claim 5, wherein a rotating shaft (221) rotatably mounted in the mixing box (21), a first driving motor (223) mounted outside the mixing box (21) and adapted to drive the rotating shaft (221) to rotate; and a plurality of stirring rods (222) mounted on the rotating shaft (221) at intervals and extending in a radial direction of the rotating shaft (221) and adapted to rotate with the rotating shaft (221) to stir the raw materials into mortar. ​ 7. The mortar fluidity detection device according to claim 6, wherein The stirring unit (22) further comprises at least one scraper (225) mounted on the rotating shaft (221) through a rotating frame (224), the scraper (225) abutting against the inner side wall of the mixing box (21) and being adapted to rotate with the rotating shaft (221) to scrape off the mortar adhered to the inner side wall.

8. The mortar fluidity detection device according to claim 2, wherein The driving assembly (4) is mounted on the support frame (1) and is adapted to drive the measuring hopper (31) to move in the vertical direction, so as to switch the measuring hopper (31) between the first state and the second state.

9. The mortar fluidity detection device according to claim 8, wherein The driving assembly (4) comprises: at least one screw rod (41) rotatably mounted on the support frame (1), the screw rod (41) being configured to extend in the vertical direction; a mounting frame (42) threadedly connected with the screw rod (41), the mounting frame (42) being slidably mounted on a sliding groove (13) provided on the support frame (1), the sliding groove (13) being configured to extend in the vertical direction, and the mounting frame (42) being connected with the measuring hopper (31); and a second driving motor (43) mounted on the support frame (1) and adapted to drive the screw rod (41) to rotate, so as to drive the mounting frame (42) to move in the vertical direction.

10. The apparatus of any one of claims 8-9, wherein, The driving assembly (4) is further adapted to drive the mixing assembly (2) and the measuring hopper (31) to move in the vertical direction synchronously, so as to keep a fixed distance between the mixing assembly (2) and the measuring hopper (31).

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