Machine-made sand MB value automatic detection device

Abstract

The utility model provides a machine-made sand MB value automatic detection device, comprising a stirring mechanism comprising a stirring cup and a stirring assembly arranged in the stirring cup; the rotating mechanism comprises a rotating tray and a plurality of filter paper placing round holes which are formed in the circumferential direction of the rotating tray at equal intervals; the injection mechanism is arranged on one side of the stirring cup and used for quantitatively injecting the methylene blue solution into the stirring cup; the liquid dipping mechanism is arranged on one side of the stirring cup and is used for dipping the suspension liquid in the stirring cup onto the filter paper on one filter paper placing round hole; the pattern recognition mechanism is arranged on one side of the liquid dipping mechanism, and the recognition end of the pattern recognition mechanism is located above a filter paper containing round hole. Through mutual cooperation of the stirring mechanism, the rotating mechanism, the injection mechanism, the liquid dipping mechanism and the pattern recognition mechanism, no personnel participation is needed during detection, manpower resources are greatly saved, color halo can be automatically recognized, and the detection efficiency is improved. And experimental errors caused by human experience and other factors are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machine-made sand detection, in particular to an automatic detection device for MB value of machine-made sand. Background Art

[0002] In the mortar and concrete industry, more and more machine-made sand is used to replace the increasingly scarce natural river sand, but the mud content of machine-made sand has a significant negative impact on the working performance and strength of mortar and concrete. At present, the mud content of machine-made sand is mainly reflected indirectly by testing the MB value of machine-made sand. The test standard is "Construction Sand" (GB / T 14684-2022). Although the MB value test method recommended by the "Construction Sand" standard is widely used, it generally has disadvantages such as difficult operation, long time consumption, and large measurement errors. The main reasons are analyzed as follows:

[0003] (1) During the addition of methylene blue solution, a pipette or dropper is commonly used. For unskilled operators, it is difficult to accurately absorb 5 ml of solution within one minute and complete the contamination process;

[0004] (2) The standard stipulates that when a precipitate with a diameter of 8-12 mm appears around a stable light blue halo of about 1 mm, stop adding the methylene blue solution. For those who are not experienced enough, it is difficult to judge the depth of color by naked eyes, and because different testers have different judgment standards, it is easy to cause different test results;

[0005] (3) The entire experimental process is complex and time-consuming, requiring the experimental personnel to concentrate and participate throughout the process, which is manpower-consuming. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an automatic detection device for the MB value of machine-made sand to solve the technical problems in the related technology that the detection of machine-made sand is carried out by manually collecting samples and then manually detecting them through detection equipment. The whole process relies too much on manual experience, and the detection method is complicated, time-consuming and manpower-consuming.

[0007] The utility model provides an automatic detection device for MB value of machine-made sand, comprising:

[0008] A stirring mechanism, the stirring mechanism comprising a stirring cup and a stirring component disposed in the stirring cup;

[0009] A rotating mechanism, the rotating mechanism comprising a rotating tray and a plurality of filter paper placement circular holes arranged equidistantly along the circumferential direction of the rotating tray;

[0010] The injection mechanism is provided on one side of the stirring cup and is used to quantitatively inject the methylene blue solution into the stirring cup;

[0011] A dipping mechanism is provided on one side of the mixing cup and is used to dip the suspension in the mixing cup onto a filter paper on the filter paper placement circular hole; and

[0012] The pattern recognition mechanism is arranged on one side of the dipping mechanism, and its recognition end is located above a circular hole for placing filter paper.

[0013] Furthermore, the stirring assembly includes a stirring motor disposed on the stirring cup and a stirring shaft connected to the driving end of the stirring motor and extending into the stirring cup.

[0014] Furthermore, the stirring shaft is provided with stirring blades.

[0015] Furthermore, the rotating mechanism also includes a rotating motor and a rotating shaft coaxially connected to the driving end of the rotating motor, and one end of the rotating shaft is connected to the rotating tray.

[0016] Furthermore, the injection mechanism includes a solution box, an injection tube connected to the solution box, and a peristaltic pump arranged on the injection tube, and one end of the injection tube extends into the stirring cup.

[0017] Furthermore, the injection pipe is U-shaped.

[0018] Furthermore, the dipping mechanism includes a dipping motor, a mechanical arm connected to the dipping motor, and a dipping rod, one end of the dipping rod is connected to an end of the mechanical arm away from the dipping motor.

[0019] Furthermore, the graphic recognition mechanism includes a bracket and a recognition camera disposed on the bracket, and the recognition camera is located above a circular hole for placing filter paper.

[0020] Furthermore, it also includes a base, and the stirring mechanism, rotating mechanism, injection mechanism, dipping mechanism and pattern recognition mechanism are all installed on the base.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model discloses an automatic detection device for MB value of machine-made sand. The dried machine-made sand sample is poured into a stirring cup filled with 500ml of water. When the stirring component stirs at a specified speed, an injection mechanism gives 5ml of methylene blue solution into the stirring cup. Then a dipping mechanism dips 1 drop of suspension on the filter paper on the filter paper placement circular hole. The rotating mechanism rotates a rotating tray, and the filter paper dripped with the suspension rotates to the bottom of a graphic recognition mechanism. The graphic recognition mechanism automatically recognizes whether a 1mm light blue color halo appears in the precipitate. If so, the experiment is terminated, and the MB value of the machine-made sand is calculated by reading the amount of methylene blue solution of the methylene blue solution quantitative automatic giving device. If no 1mm light blue color halo appears, the next cycle is automatically entered.

[0023] The automatic detection device for MB value of machine-made sand of the utility model does not require human participation during detection by arranging a stirring mechanism, a rotating mechanism, an injection mechanism, a dipping mechanism and a graphic recognition mechanism, thereby greatly saving human resources, and can automatically identify color halos, greatly reducing experimental errors caused by factors such as human experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of an automatic detection device for MB value of machine-made sand according to an embodiment of the utility model;

[0025] Figure 2 This is a left view of an automatic detection device for MB value of machine-made sand according to an embodiment of the utility model;

[0026] Figure 3 This is a top view of an automatic detection device for MB value of machine-made sand according to an embodiment of the utility model;

[0027] Description of Figure Numbers:

[0028] 100, stirring mechanism; 110, stirring cup; 120, stirring motor; 130, stirring shaft;

[0029] 200, rotating mechanism; 210, rotating tray; 220, circular hole for placing filter paper; 230, rotating motor; 240, rotating shaft;

[0030] 300, injection mechanism; 310, solution box; 320, injection tube; 330, peristaltic pump;

[0031] 400, dipping mechanism; 410, dipping motor; 420, mechanical arm; 430, dipping rod;

[0032] 500, pattern recognition mechanism; 510, bracket; 520, recognition camera;

[0033] 600. Base.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0036] In the description of the utility model, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with the technology to understand and read, and are not used to limit the limiting conditions that the utility model can be implemented, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effect that the utility model can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0037] like Figure 1-3 As shown, an embodiment of the utility model provides an automatic detection device for the MB value of machine-made sand, including a stirring mechanism 100, a rotating mechanism 200, an injection mechanism 300, a dipping mechanism 400 and a graphic recognition mechanism 500. By coordinating the above-mentioned mechanisms with each other, no human participation is required during detection, which greatly saves human resources, can automatically identify color halos, and greatly reduces experimental errors caused by factors such as human experience.

[0038] The stirring mechanism 100 is used to stir the machine-made sand, water and methylene blue solution evenly. Specifically, the stirring mechanism 100 includes a stirring cup 110 and a stirring component arranged in the stirring cup 110 for stirring the solution in the stirring cup 110 evenly. The stirring component includes a stirring motor 120 arranged in the stirring cup 110 and a stirring shaft 130 connected to the driving end of the stirring motor 120 and extending into the stirring cup 110, and the stirring shaft 130 is provided with stirring blades. During specific operation, the stirring motor 120 drives the stirring shaft 130 to drive the stirring blades to rotate, stir the solution in the stirring cup 110, and mix it evenly.

[0039] The rotating mechanism 200 is used to rotate the components thereon so that they are located at different positions so that subsequent mechanisms can perform corresponding work. Specifically, the rotating mechanism 200 includes a rotating tray 210, a plurality of filter paper placement circular holes 220 equidistantly arranged along the circumferential direction of the rotating tray 210, a rotating motor 230, and a rotating shaft 240 coaxially connected to the driving end of the rotating motor 230. One end of the rotating shaft 240 is connected to the rotating tray 210. During specific operation, the rotating motor 230 drives the rotating shaft 240 to drive the rotating tray 210 to rotate, so that a filter paper placement circular hole 220 is directly opposite to the bottom of the graphic recognition mechanism 500, so as to continuously perform detection, thereby improving the detection efficiency. The rotating motor 230 can adopt a servo motor to achieve precise rotation angle control so that it can cooperate with other mechanisms to operate normally.

[0040] The injection mechanism 300 is used to quantitatively inject the methylene blue solution into the stirring cup 110. Specifically, the injection mechanism 300 includes a solution box 310 arranged on one side of the stirring cup 110, an injection tube 320 connected to the solution box 310, and a peristaltic pump 330 arranged on the injection tube 320. One end of the injection tube 320 extends into the stirring cup 110. During operation, the peristaltic pump 330 quantitatively adds the methylene blue solution in the solution box 310 to the stirring cup 110 through the injection tube 320. In order to more effectively control the flow of the solution, the injection tube 320 is arranged in a U-shape, because the solution will generate resistance in the U-shaped tube, thereby slowing down the flow rate, making the injection process more stable and controllable, and facilitating quantitative injection.

[0041] The dipping mechanism 400 is used to dip the suspension in the stirring cup 110 onto the filter paper on the filter paper placement circular hole 220. Specifically, the dipping mechanism 400 includes a dipping motor 410 arranged on one side of the stirring cup 110, a mechanical arm 420 connected to the dipping motor 410, and a dipping rod 430. One end of the dipping rod 430 is connected to the end of the mechanical arm 420 away from the dipping motor 410. During specific operation, the dipping motor 410 drives the mechanical arm 420 to move, and the dipping rod 430 is driven by the mechanical arm 420 to move between the stirring cup 110 and the filter paper placement circular hole 220, thereby taking out the solution in the stirring cup 110 and dripping it on the filter paper on the filter paper placement circular hole 220.

[0042] The graphic recognition mechanism 500 is used to detect whether color halo appears in the suspension. Specifically, the graphic recognition mechanism 500 includes a bracket 510 arranged on one side of the mixing cup 110 and a recognition camera 520 arranged on the bracket 510. The recognition camera 520 is located above a circular hole 220 for placing filter paper. The recognition camera 520 is an industrial camera that can take a picture of the image formed by the suspension on the filter paper to identify whether color halo appears. The judgment is accurate and is not prone to judgment errors similar to those of the naked eye.

[0043] like Figure 1-3 As shown, in one embodiment of the utility model, the automatic detection device for the MB value of machine-made sand also includes a base 600, and the stirring mechanism 100, the rotating mechanism 200, the injection mechanism 300, the dipping mechanism 400 and the graphic recognition mechanism 500 are all installed on the base 600. Installing these mechanisms on the base 600 can provide more stable support, make the equipment more balanced and stable during operation, and reduce problems caused by vibration or imbalance. Installing these mechanisms on the base 600 can promote integration, making it easier to coordinate and cooperate between different mechanisms, thereby improving the efficiency and performance of the entire system. At the same time, a handle can be set on the base 600 for movement.

[0044] The use process of the automatic detection device for MB value of machine-made sand of the utility model is as follows:

[0045] First, pour the dried machine-made sand sample into the stirring cup 110 filled with 500 ml of water. While the stirring component stirs at a specified speed, the injection mechanism 300 gives 5 ml of methylene blue solution to the stirring cup 110. Then the dipping mechanism 400 dips 1 drop of suspension on the filter paper on the filter paper placement hole 220. The rotating mechanism 200 rotates the rotating tray 210, and the filter paper with the suspension rotates to the bottom of the graphic recognition mechanism 500. The graphic recognition mechanism 500 automatically recognizes whether a 1 mm light blue halo appears in the precipitate; if so, the experiment is terminated, and the MB value of the machine-made sand is calculated by reading the amount of methylene blue solution in the methylene blue solution quantitative automatic dosing device; if no 1 mm light blue halo appears, the next cycle is automatically entered.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An automatic detection device for MB value of machine-made sand, characterized in that: include: A stirring mechanism (100), the stirring mechanism (100) comprising a stirring cup (110) and a stirring component arranged in the stirring cup (110); A rotating mechanism (200), the rotating mechanism (200) comprising a rotating tray (210) and a plurality of filter paper placement circular holes (220) equidistantly arranged along a circumferential direction of the rotating tray (210); An injection mechanism (300) is disposed on one side of the stirring cup (110) and is used to quantitatively inject the methylene blue solution into the stirring cup (110); A liquid dipping mechanism (400) is disposed on one side of the stirring cup (110) and is used to dip the suspension in the stirring cup (110) onto a filter paper on a filter paper placement circular hole (220); and The pattern recognition mechanism (500) is arranged on one side of the dipping mechanism (400), and its recognition end is located above a filter paper placement circular hole (220).

2. The automatic detection device for MB value of machine-made sand according to claim 1, characterized in that: The stirring assembly comprises a stirring motor (120) disposed on the stirring cup (110) and a stirring shaft (130) connected to the driving end of the stirring motor (120) and extending into the stirring cup (110).

3. The automatic detection device for MB value of machine-made sand according to claim 2, characterized in that: The stirring shaft (130) is provided with stirring blades.

4. The automatic detection device for MB value of machine-made sand according to claim 1, characterized in that: The rotating mechanism (200) further comprises a rotating motor (230) and a rotating shaft (240) coaxially connected to the driving end of the rotating motor (230), and one end of the rotating shaft (240) is connected to the rotating tray (210).

5. The automatic detection device for MB value of machine-made sand according to claim 1, characterized in that: The injection mechanism (300) comprises a solution box (310), an injection tube (320) connected to the solution box (310), and a peristaltic pump (330) arranged on the injection tube (320), and one end of the injection tube (320) extends into the stirring cup (110).

6. The automatic detection device for MB value of machine-made sand according to claim 5, characterized in that: The injection pipe (320) is U-shaped.

7. The automatic detection device for MB value of machine-made sand according to claim 1, characterized in that: The dipping mechanism (400) comprises a dipping motor (410), a mechanical arm (420) connected to the dipping motor (410), and a dipping rod (430), wherein one end of the dipping rod (430) is connected to one end of the mechanical arm (420) away from the dipping motor (410).

8. The automatic detection device for MB value of machine-made sand according to claim 1, characterized in that: The pattern recognition mechanism (500) comprises a bracket (510) and a recognition camera (520) arranged on the bracket (510); the recognition camera (520) is located above a filter paper placement circular hole (220).

9. An automatic detection device for MB value of machine-made sand according to any one of claims 1 to 8, characterized in that: It also includes a base (600), and the stirring mechanism (100), the rotating mechanism (200), the injection mechanism (300), the dipping mechanism (400) and the pattern recognition mechanism (500) are all installed on the base (600).

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