Device for analyzing coarse aggregate of machine-made sand

Abstract

The utility model relates to the technical field of machine-made sand detection, and particularly discloses a machine-made sand coarse aggregate analysis device. The machine-made sand coarse aggregate analysis device is composed of a base, a placement table, a circular screen and a light source device. The base comprises a rectangular base, and a fixing rod and a rotating disc are arranged on the two sides respectively. The placing table comprises a table top and a vibration rod, the vibration rod is composed of a spring and a large cylinder and a small cylinder which are coaxial vertically, and the lower end of the spring is fixed to the table top. The circular screen cloth is detachably connected with the containing table through the positioning holes, and the screen frame is of a circular ring structure. The light source device comprises a hinge piece and an annular lamp, two ends of the light source device are respectively connected with the base fixing rod and the lamp through clamps, and the hinge piece can adjust levelness of the lamp. The device realizes efficient treatment of coarse aggregate through vibration screening in combination with light source assistance. The purpose of the utility model is to solve the problem of insufficient capture of coarse aggregate surface details by existing light sources. The machine-made sand coarse aggregate image acquisition device is mainly used for machine-made sand coarse aggregate image acquisition.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of machine-made sand detection, particularly to the device for machine-made sand coarse aggregate analysis. BACKGROUND

[0002] In the concrete preparation process, the quality analysis of machine-made sand coarse aggregate is crucial. The particle shape, particle size distribution, surface roughness and other characteristics of machine-made sand coarse aggregate directly affect the strength, durability and work performance of concrete. Therefore, accurate analysis and detection of machine-made sand coarse aggregate are the key steps to ensure the quality of concrete.

[0003] At present, the commonly used machine-made sand coarse aggregate analysis technology mainly includes screening method, laser particle size analysis method, image analysis method, etc. Among them, the image analysis method has the advantages of strong intuitiveness and strong adaptability. The Chinese utility model patent with publication number CN217590896U discloses a machine-made sand particle shape coefficient photographing and collecting device, which specifically comprises a placing table, a hole screen plate and a three-dimensional adjusting mechanism. The placing table comprises a placing bottom plate and a light guide plate arranged above and below. The hole screen plate is detachably covered on the placing table. The three-dimensional adjusting mechanism comprises a base symmetrically arranged on both sides of the placing table. A vertical adjusting assembly is slidably arranged on the base. The vertical adjusting assembly is connected with a horizontal adjusting assembly which spans the placing table.

[0004] Although the device improves the lighting conditions through the light guide plate, the light guide plate uses plane light from bottom to top, and the height of the light source is not adjustable. The plane light vertically irradiates on the coarse aggregate from bottom to top, which weakens the edge contrast of adjacent coarse aggregates, and the coarse aggregate rough surface details are not captured enough. It cannot fully adapt to machine-made sand with different particle shapes, especially when there are cracks, edges and other concave-convex textures on the upper surface of the coarse aggregate, the plane light from bottom to top may cause poor image quality. SUMMARY

[0005] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a device for machine-made sand coarse aggregate analysis, which solves the problem of insufficient capture of coarse aggregate surface details by the existing light source.

[0006] In order to solve the above problems, the utility model adopts the following technical scheme: a device for machine-made sand coarse aggregate analysis, comprising a base, a placing table, a circular screen and a light source device.

[0007] The base comprises a fixed rod, a base and a rotating disc. The base is a rectangular plate, and the fixed rod and the rotating disc are arranged on both sides of the rectangular plate respectively. The fixed rod is a cylindrical body and is fixedly connected with the base.

[0008] The placing table comprises a table top and a vibrating rod; the vibrating rod comprises a spring, a first cylinder and a second cylinder, the lower end of the spring is fixedly connected with the table top, the upper end of the spring is coaxial with the two cylinders, the second cylinder is above the first cylinder, and the diameter of the first cylinder is larger than that of the second cylinder;

[0009] The circular screen comprises a screen, a screen frame and a positioning hole; the circular screen is detachably connected with the placing table through the positioning hole; the screen frame is in the shape of a circular ring;

[0010] The light source device comprises a hinge device with a first clamp and a second clamp fixedly connected at two ends respectively, and a circular ring-shaped lamp; the light source device is detachably connected with the base fixed rod through the first clamp; the first clamp has a chuck matched with the groove of the fixed rod; the second clamp has a chuck matched with the circular ring-shaped lamp; the hinge device adjusts the levelness of the circular ring-shaped lamp by adjusting the angle.

[0011] Further, the fixed rod is provided with grooves with consistent spacing.

[0012] Further, the rotating disc is circular and has magnetism, and is connected with the base through an axle and can rotate on the base.

[0013] Further, the placing table is magnetically connected with the base rotating disc through the circular table top.

[0014] Further, the table top is circular and has magnetism within the concentric range of the rotating disc, and the diameter of the table top is larger than that of the rotating disc.

[0015] Further, the screen square hole screen aperture comprises 4.75mm, 9.50mm, 16.0mm, 19.0mm, 26.5mm, 31.5mm, 37.5mm, 53.0mm, 63.0mm, 75.0mm and 90.0mm.

[0016] Further, the positioning hole on the screen frame is arranged at the vertex position of an equilateral triangle.

[0017] Further, the diameter of the positioning hole is matched with the diameter of the second cylinder.

[0018] Further, the device for analyzing coarse aggregate of machine-made sand further comprises a light source baffle, the light source baffle comprises an open slot and a light blocking plate; the light source baffle is directly placed on the circular ring-shaped lamp; the open slot is arranged on the side surface of the light blocking plate, the width of the open slot is matched with the width of the hinge device, and the cross-sectional shape of the light blocking plate is similar to the number “7”. The light source baffle is directly placed on the circular ring-shaped lamp through the open slot, and plays a shielding role.

[0019] The beneficial effects of this solution are: 1. The ring light source can provide uniform illumination, reduce the influence of shadows and reflections, and facilitate subsequent image processing and analysis of coarse aggregates; 2. The springs of the placement platform can cause the screen to vibrate slightly, making it easier for the coarse aggregates to fall onto the platform through the screen. Attached Figure Description

[0020] Figure 1 Axonometric drawing of the apparatus used for analyzing coarse aggregates in manufactured sand;

[0021] Figure 2 Cross-sectional view of the apparatus used for analyzing coarse aggregates of manufactured sand;

[0022] Figure 3 Axonometric drawing of the base of the apparatus for analyzing coarse aggregates of manufactured sand;

[0023] Figure 4 Axonometric drawing of the setup for the apparatus used in the analysis of coarse aggregates of manufactured sand;

[0024] Figure 5 Axonometric drawing of a circular sieve used in a device for analyzing coarse aggregates of manufactured sand;

[0025] Figure 6 Axonometric drawing of the light source device for the apparatus used in the analysis of coarse aggregates of manufactured sand;

[0026] Figure 7 Axonometric view of the light source baffle of the apparatus used for analyzing coarse aggregates of manufactured sand;

[0027] The reference numerals in the accompanying drawings include: 1. base; 11. fixing rod; 12. base; 13. rotating disk; 2. placement platform; 21. table surface; 22. vibrating rod; 221. spring; 222. first cylinder; 223. second cylinder; 3. circular screen; 31. screen; 32. screen frame; 33. positioning hole; 4. light source device; 41. first clamp; 42. hinge device; 43. second clamp; 44. annular lamp; 5. light source baffle; 51. opening slot; 52. light blocking plate. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] As attached Figures 1-7 As shown:

[0030] The apparatus for analyzing coarse aggregate of manufactured sand includes a base 1, a placement platform 2, a circular screen 3, a light source device 4, and a light source baffle 5;

[0031] The base 1 includes a fixing rod 11, a base 12, and a rotating disk 13; the base 12 is a rectangular plate, with the fixing rod 11 and the rotating disk 13 on both sides of the rectangular plate respectively; the fixing rod 11 is a cylinder and is fixedly connected to the base 12; the fixing rod 11 is provided with grooves with consistent spacing; the rotating disk 13 is circular and magnetic, and the rotating disk 13 is connected to the base 12 through an axle and can rotate on the base 12;

[0032] The placement platform 2 includes a platform 21 and a vibrating rod 22; the placement platform 2 is magnetically connected to the rotating disk 13 of the base 1 via the circular platform 21; the platform 21 is circular and has magnetism within the concentric area with the rotating disk 13, and the diameter of the platform 21 is larger than the diameter of the rotating disk 13; the vibrating rod 22 includes a spring 221, a first cylinder 222, and a second cylinder 223, the lower end of the spring 221 is fixedly connected to the platform 21, the upper end of the spring 221 consists of two coaxial cylinders, the second cylinder 223 is above the first cylinder 222, and the diameter of the first cylinder 222 is larger than the diameter of the second cylinder 223;

[0033] The circular screen 3 includes a screen 31, a screen frame 32, and positioning holes 33; the circular screen 3 is detachably connected to the placement platform 2 through the positioning holes 33; the screen frame 32 is annular, and the positioning holes 33 on the screen frame 32 are located at the corner points of an equilateral triangle, and the diameter of the positioning holes 33 matches the diameter of the second cylinder 223; the square hole diameter of the screen 31 includes 4.75mm, 9.50mm, 16.0mm, 19.0mm, 26.5mm, 31.5mm, 37.5mm, 53.0mm, 63.0mm, 75.0mm, and 90.0mm;

[0034] The light source device 4 includes a hinge device 42 with a first clamp 41 and a second clamp 43 fixedly connected to both ends, and a ring-shaped lamp 44. The light source device 4 is detachably connected to the fixing rod 11 of the base 1 through the first clamp 41. The first clamp 41 has a clamp that matches the groove of the fixing rod 11. The second clamp has a clamp that matches the ring-shaped lamp 44. The hinge device 42 adjusts the horizontality of the ring-shaped lamp 44 by adjusting the angle.

[0035] The light source baffle 5 includes an opening slot 51 and a light-blocking plate 52; the light source baffle 5 rests directly on the annular lamp 44; the opening slot 51 is located on the side of the light-blocking plate 52, and the width of the opening slot 51 matches the width of the hinge device 42; the cross-sectional shape of the light-blocking plate 52 is similar to the number "7". The light source baffle is placed directly on the annular lamp 44 through the opening slot 51, serving a shielding function. Detailed implementation method:

[0037] When the frustum 21 is brought close to the rotating disk 13, due to magnetic attraction, the frustum 21 will spontaneously align and attach to the magnetic area at the center of the rotating disk 13.

[0038] Select a square-hole screen 31 with a suitable aperture, and align the circular screen 3 with the second cylinder 223 of the vibrating rod 22 through the positioning hole 33.

[0039] Place the coarse aggregate into the circular sieve 3 and spread it out by hand or with a tool. During the spreading process, the spring 221 can cause the sieve 31 to vibrate slightly. The slight vibration of the sieve 31 combined with the original spreading action makes it easier for the coarse aggregate to fall onto the table 21 through the sieve 31, so that there is a piece of coarse aggregate in each square hole of the sieve 31.

[0040] Remove excess coarse aggregate from the circular screen 3 and remove the circular screen 3 from the placement platform 2.

[0041] The light source device 4 is fixed to the fixing rod 11 by the first clamp 41. The groove design on the fixing rod 11 makes the clamp more stable. At the same time, the height of the light source device 4 can be adjusted to adapt to the surface detail capture of manufactured sand with different particle shapes. The light source device 4 is activated so that the light generated by the ring lamp 44 shines on the coarse aggregate after screening and separation.

[0042] Operators can further analyze and process the coarse aggregate by observing it under the illumination of the light source.

[0043] Example 1: Direct Ring Light

[0044] The height of the light source device 4 is adjusted by the first clamp 41 so that the line connecting the center of the tubular ring lamp 44 and the center of the circular platform 21 is at an angle of 60-90 degrees to the horizontal plane. The light source shines almost vertically from top to bottom onto the coarse aggregate being tested, so that the coarse aggregate being tested is effectively illuminated.

[0045] Example 2: Low-angle ring light

[0046] The height of the light source device 4 is adjusted by the first clamp 41 so that the line connecting the center of the tubular ring lamp 44 and the center of the circular platform 21 is at an angle of 15-60 degrees to the horizontal plane. The light source illuminates from all sides at a low angle, which can highlight the uneven parts of the object's surface.

[0047] Example 3 Horizontal Ring Light

[0048] The height of the light source device 4 is adjusted by the first clamp 41 so that the line connecting the center of the tubular ring lamp 44 and the center of the circular platform 21 is at an angle of 0-15 degrees to the horizontal plane. The light source illuminates horizontally from all directions, and can obtain the fine irregular shapes on the edges and planes of objects on the horizontal surface.

[0049] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An apparatus for analyzing coarse aggregates of manufactured sand, comprising a base, a placement platform, a circular sieve, and a light source device; characterized in that: The base includes a fixed rod, a base, and a rotating disk; the base is a rectangular plate, with a fixed rod and a rotating disk on each side of the rectangular plate; the fixed rod is cylindrical and fixedly connected to the base; The placement platform includes a platform and a vibrating rod; the vibrating rod includes a spring, a first cylinder, and a second cylinder, the lower end of the spring is fixedly connected to the platform, the upper end of the spring consists of two coaxial cylinders, the second cylinder is above the first cylinder, and the diameter of the first cylinder is larger than the diameter of the second cylinder; The circular screen includes a screen, a screen frame, and positioning holes; the circular screen is detachably connected to the placement platform through the positioning holes; the screen frame is annular. The light source device includes a hinge device with a first clamp and a second clamp fixedly connected to both ends, and a ring-shaped lamp; the light source device is detachably connected to a base fixing rod via the first clamp; the first clamp has a clamp that matches the groove of the fixing rod; the second clamp has a clamp that matches the ring-shaped lamp; the hinge device adjusts the level of the ring-shaped lamp by adjusting the angle.

2. The apparatus for analyzing coarse aggregate of manufactured sand according to claim 1, characterized in that: The fixing rod is provided with grooves with consistent spacing.

3. The apparatus for analyzing coarse aggregate of manufactured sand according to claim 1, characterized in that: The rotating disk is circular and magnetic. It is connected to the base via an axle and can rotate on the base.

4. The apparatus for analyzing coarse aggregate of manufactured sand according to claim 1, characterized in that: The placement platform is magnetically connected to the rotating disk of the base via a circular platform.

5. The apparatus for analyzing coarse aggregate of manufactured sand according to claim 1, characterized in that: The platform is circular and has magnetism within the concentric area with the rotating disk, and the diameter of the platform is larger than the diameter of the rotating disk.

6. The apparatus for analyzing coarse aggregate of manufactured sand according to claim 1, characterized in that: The square mesh apertures of the screen include 4.75mm, 9.50mm, 16.0mm, 19.0mm, 26.5mm, 31.5mm, 37.5mm, 53.0mm, 63.0mm, 75.0mm, and 90.0mm.

7. The apparatus for analyzing coarse aggregate of manufactured sand according to claim 1, characterized in that: The positioning holes on the sieve frame are located at the corner points of an equilateral triangle.

8. The apparatus for analyzing coarse aggregate of manufactured sand according to claim 7, characterized in that: The diameter of the positioning hole matches the diameter of the second cylinder.

9. The apparatus for analyzing coarse aggregate of manufactured sand according to claim 1, characterized in that: The apparatus for analyzing coarse aggregates of manufactured sand also includes a light source baffle, which includes an opening slot and a light-blocking plate; the light source baffle is directly placed on a circular lamp; the opening slot is located on the side of the light-blocking plate, the width of the opening slot matches the width of the hinge device, and the cross-sectional shape of the light-blocking plate is similar to the number "7".

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