Automatic material collection needle sheet detection system

Abstract

The utility model discloses an automatic aggregate needle sheet detection system which comprises a bottom plate, a mounting seat and a mounting frame, the mounting seat and the mounting frame are arranged on the bottom plate, a classifying screen is rotatably arranged on the mounting seat through a rotating shaft, a vibration motor is arranged at the bottom of the classifying screen, and a sealing plate capable of being opened through electric control is arranged on the side face of the classifying screen; a conveying belt, a material collecting bin, a length and width detector, a thickness detector and a material pushing module are arranged on the mounting frame, the material collecting bin is located over the conveying belt, and a discharging control roller driven by a motor is arranged at a discharging opening in the bottom of the material collecting bin. The system can be used for detecting the content of the needle-sheet-shaped particles in the whole aggregate, grading the aggregate and respectively detecting the content of the needle-sheet-shaped particles in each grade of aggregate, and is relatively good in applicability.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering testing technology, specifically to an automated aggregate needle-like detection system. Background Technology

[0002] Flaky and needle-like particles are aggregates whose minimum thickness (or diameter) to maximum length (or width) ratio is less than 0.4. The hazards of a high content of flaky and needle-like particles in cement concrete include: Flaky and needle-like aggregates tend to create voids in cement concrete, resulting in high porosity and easy breakage under pressure, thus affecting the strength of the cement concrete; a high content of flaky and needle-like particles also increases the surface area and porosity between aggregates, reducing the fluidity of the concrete and easily causing pipeline blockage during concrete pumping, which is detrimental to construction.

[0003] Currently, the main methods for detecting the needle-like and flaky particle content of coarse aggregates used in cement concrete in the highway engineering industry rely on the gauge instrument method in T0311-2005 or the caliper method in T0312-2005 of the industry standard "Specifications for Testing Aggregates in Highway Engineering" (JTG 3432-2024). Both methods involve manual selection of needle-like and flaky aggregates that meet the specifications using tools such as test sieves, gauge instruments, and calipers. This process is extremely time-consuming and labor-intensive, affecting the timeliness of testing tasks and consuming a significant amount of time and energy for testing personnel, resulting in very low testing efficiency. Therefore, we have designed an automated needle-like and flaky particle detection system for aggregates. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an automated material collection needle-like detection system, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automated needle-like particle detection system, comprising a base plate and a mounting seat and a mounting frame thereon. A grading screen is rotatably mounted on the mounting seat via a rotating shaft. A vibrating motor is mounted at the bottom of the grading screen, and an electrically controllable sealing plate is mounted on the side of the grading screen. The mounting frame is equipped with a conveyor belt, a collection bin, a length and width detector, a thickness detector, and a pushing module. The collection bin is located directly above the conveyor belt, and a motor-driven discharge control roller is mounted at the discharge port at the bottom of the collection bin. The pushing module is located at the end of the conveyor belt, and the length and width detector and the thickness detector are located between the collection bin and the pushing module. The base plate is equipped with a needle-like particle collection bin and a normal particle collection bin. The needle-like particle collection bins are located on both sides of the conveyor belt and correspond to the positions of the pushing module, while the normal particle collection bins are located below the tail end of the conveyor belt.

[0006] As a preferred technical solution of this utility model, the grading screen has six levels, with screen holes of 31.5mm, 26.5mm, 19mm, 16mm, 9.5mm and 4.75mm from top to bottom. The bottom layer is a waste collection box, and the number of collection bins is also six. The waste channels set on the side of the collection bins correspond to the waste collection boxes.

[0007] As a preferred technical solution of this utility model, the sealing plate is made of iron, and an electromagnet is provided at the corresponding position on the side of the grading screen.

[0008] As a preferred technical solution of this utility model, the feeding module is provided with two push rods, one for pushing out needle-shaped particles and the other for pushing out flake-shaped particles. There are also two needle-shaped and flake-shaped particle collection buckets, one for collecting needle-shaped particles and the other for collecting flake-shaped particles.

[0009] As a preferred embodiment of this utility model, the side of the feeding control roller is provided with a groove for accommodating the collected material.

[0010] As a preferred embodiment of this utility model, both the needle-shaped particle collection bucket and the normal particle collection bucket are equipped with electronic scales at their bottoms.

[0011] As a preferred embodiment of this invention, the bottom of the electronic scale is connected to the base plate via a buffer spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this automated aggregate needle and flaky particle detection system can greatly improve the detection efficiency of needle and flaky particle content in aggregates, reduce the time and energy costs of testing personnel, and in addition to detecting the content of needle and flaky particles in the overall aggregate, this system can also classify the aggregate and detect the content of needle and flaky particles in each grade of aggregate separately, and has good applicability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the material feeding state of this utility model.

[0015] In the diagram: 1. Base plate, 2. Mounting base, 3. Mounting frame, 4. Grading screen, 5. Vibrating motor, 6. Waste collection box, 7. Rotating shaft, 8. Sealing plate, 9. Electromagnet, 10. Collection bin, 11. Waste channel, 12. Discharge control roller, 13. Conveyor belt, 14. Length and width detector, 15. Thickness detector, 16. Pushing module, 17. Needle-shaped particle collection bin, 18. Normal particle collection bin, 19. Electronic scale. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-2 This utility model provides a technical solution: an automated material collection needle-like detection system, including a base plate 1 and a mounting seat 2 and a mounting frame 3 on it;

[0018] A grading screen 4 is rotatably mounted on the mounting base 2 via a rotating shaft 7. A vibrating motor 5 is installed at the bottom of the grading screen 4. An electrically controllable sealing plate 8 is installed on the side of the grading screen 4. The sealing plate 8 is made of iron. An electromagnet 9 is installed at the corresponding position on the side of the grading screen 4. The grading screen 4 has six levels, with screen holes of 31.5mm, 26.5mm, 19mm, 16mm, 9.5mm, and 4.75mm from top to bottom. The bottom layer is a waste collection box 6, and there are also six corresponding collection bins 10. The waste channel 11 on the side of the collection bin 10 corresponds to the waste collection box 6.

[0019] The mounting frame 3 is equipped with a conveyor belt 13, a collection bin 10, a length and width measuring instrument 14, a thickness measuring instrument 15, and a pushing module 16. The collection bin 10 is located directly above the conveyor belt 13. A motor-driven feeding control roller 12 is installed at the discharge port at the bottom of the collection bin 10. A groove for collecting the collected material is provided on the side of the feeding control roller 12. The pushing module 16 is located at the end of the conveyor belt 13. The length and width measuring instrument 14 and the thickness measuring instrument 15 are located between the collection bin 10 and the pushing module 16. The pushing module 16 is equipped with two push rods, one for pushing out needle-shaped particles and the other for pushing out flake-shaped particles. There are also two needle-shaped and flake-shaped particle collection bins 17, one for collecting needle-shaped particles and the other for collecting flake-shaped particles.

[0020] The base plate 1 is provided with a needle-shaped particle collection bucket 17 and a normal particle collection bucket 18. The needle-shaped particle collection bucket 17 is located on both sides of the conveyor belt 13 and corresponds to the position of the pusher module 16. The normal particle collection bucket 18 is located below the tail end of the conveyor belt 13. Both the needle-shaped particle collection bucket 17 and the normal particle collection bucket 18 are provided with an electronic scale 19 at their bottom. The bottom of the electronic scale 19 is connected to the base plate 1 through a buffer spring to reduce the impact of external vibration on the accuracy of the electronic scale 19.

[0021] In use, the aggregate to be tested is put into the grading screen 4, and the vibrating motor 5 is started to screen it. After screening, the grading screen 4 is driven to rotate 90 degrees clockwise around the rotating shaft 7, either electrically or manually. At this time, each level of the grading screen 4 is connected to the corresponding aggregate bin 10, the electromagnet 9 is de-energized, and the sealing plate 8 opens under gravity. The screened aggregate falls into the corresponding aggregate bin 10, and the waste material also falls into the waste channel 11. Then, the motor of the feeding control roller 12 is started to make it rotate intermittently. Each time the feeding control roller 12 rotates, one or several aggregate particles fall onto the conveyor belt 13, and are finally dispersed and spread on the conveyor belt 13. The conveyor belt 13 transports them to the length and width detector 14 and the thickness detector 15. Size checks and calculations are performed to determine whether the particle is needle-shaped or flaky. Since the method of using images to detect the size of objects is an existing method, such as the digital display aggregate needle-shaped and flaky particle detector based on the projection principle published in CN116930010A, it will not be described in detail here. The pushing module 16 pushes the needle-shaped or flaky particles off the conveyor belt 13 into the corresponding needle-shaped and flaky particle collection bucket 17 according to the detection data. The remaining particles are transported by the conveyor belt 13 to the normal particle collection bucket 18. The electronic scale 19 records the weight data of various particles and inputs it into the calculation device. Finally, the content of needle-shaped and flaky aggregates in each grade of aggregates can be calculated, and the overall content of needle-shaped and flaky aggregates can also be calculated to complete the detection.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated material collection needle-like detection system, comprising a base plate (1) and a mounting base (2) and a mounting frame (3) thereon, characterized in that: A grading screen (4) is rotatably mounted on the mounting base (2) via a rotating shaft (7). A vibration motor (5) is mounted at the bottom of the grading screen (4). An electrically controllable sealing plate (8) is mounted on the side of the grading screen (4). The mounting frame (3) is equipped with a conveyor belt (13), a collection bin (10), a length and width measuring instrument (14), a thickness measuring instrument (15), and a pushing module (16). The collection bin (10) is located directly above the conveyor belt (13). A motor-driven feeding control roller (12) is installed at the discharge port at the bottom of the collection bin (10). The pushing module (16) is located at the end of the conveyor belt (13). The length and width measuring instrument (14) and the thickness measuring instrument (15) are located between the collection bin (10) and the pushing module (16). The base plate (1) is provided with a needle-shaped particle collection bucket (17) and a normal particle collection bucket (18). The needle-shaped particle collection bucket (17) is located on both sides of the conveyor belt (13) and corresponds to the position of the pusher module (16). The normal particle collection bucket (18) is located below the end of the conveyor belt (13).

2. The automated aggregate needle flakiness detection system of claim 1, wherein: The grading screen (4) has six levels, with screen holes of 31.5mm, 26.5mm, 19mm, 16mm, 9.5mm and 4.75mm from top to bottom. The bottom layer is a waste collection box (6), and the number of collection bins (10) is also six. The waste channel (11) set on the side of the collection bin (10) corresponds to the waste collection box (6).

3. The automated aggregate needle flakiness detection system of claim 1, wherein: The sealing plate (8) is made of iron, and an electromagnet (9) is provided at the corresponding position on the side of the grading sieve (4).

4. The automated aggregate needle flakiness detection system of claim 1, wherein: The feeding module (16) is equipped with two push rods, one for pushing out needle-shaped particles and the other for pushing out flake-shaped particles. There are also two needle-shaped and flake-shaped particle collection buckets (17), one for collecting needle-shaped particles and the other for collecting flake-shaped particles.

5. The automated aggregate needle flakiness detection system of claim 1, wherein: The side of the feeding control roller (12) is provided with a groove for accommodating the aggregate.

6. The automated aggregate needle flakiness detection system of claim 1, wherein: Both the needle-shaped particle collection bucket (17) and the normal particle collection bucket (18) are equipped with electronic scales (19) at their bottoms.

7. The automated aggregate needle flakiness detection system of claim 6, wherein: The bottom of the electronic scale (19) is connected to the base plate (1) by a buffer spring.

Images