Mechanism sand screening device

Abstract

The utility model provides a mechanism sand screening device, including base, one side of base is equipped with the collecting groove, the top of base is equipped with the support, the top center place of support is equipped with the material guide inclined plate, the top of support is installed with the blanking mechanism that coordinates with material guide inclined plate, the side of support hinged connection has the discharge frame, the top of base is equipped with the vibration mechanism and buffer mechanism that coordinates with discharge frame, the top center place of discharge frame is equipped with the material groove that coordinates with material guide inclined plate, the discharge port of material groove is compatible with collecting groove, the inside of material groove is equipped with first filter screen, second filter screen and third filter screen, the feed inlet of material groove is equipped with a plurality of with material guide inclined plate coordinates with the material distribution board, the utility model has the beneficial effect, the utility model discloses can pass through blanking mechanism, vibration mechanism and three kinds of filter screen carry out the multiple screening action of mechanism sand, has improved the screening effect of mechanism sand.

Description

Technical Field

[0001] This utility model is a machine-made sand screening device, belonging to the field of machine-made sand screening equipment. Background Technology

[0002] With rapid societal development, the demand for concrete is increasing, and the consumption of sand and gravel, as the main raw materials for concrete, is also constantly growing. Currently, natural sand and gravel are commonly used in construction projects. However, natural sand and gravel are non-renewable resources. With the increasing demand for construction, the supply of natural sand resources is becoming increasingly tight, and excessive mining can severely damage the ecological environment. The emergence of manufactured sand has effectively solved this problem. It uses rock, mine tailings, or industrial waste particles produced by mechanical crushing and screening to replace natural sand as aggregate. This not only solves the problem of insufficient natural sand supply but also improves the utilization of solid waste resources, resulting in significant environmental, energy-saving, and socio-economic benefits. Therefore, it is widely used.

[0003] Because existing sand making machines contain sand and gravel that can be directly used as finished sand before processing raw materials, if these raw materials are not screened and are directly fed into the sand making machine, the finished sand will undergo secondary sand making, resulting in a higher stone powder content in the manufactured sand. This causes trouble for the subsequent sand washing operation and increases the energy consumption of the sand making machine, thus reducing its sand making efficiency. However, the screen plates of commonly available manufactured sand screening machines have poor screening capabilities and cannot achieve multiple screening actions for manufactured sand. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a machine-made sand screening device.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A manufactured sand screening device includes a base, a collection trough on one side of the base, a support on the top of the base, a guide plate at the center of the top of the support, a feeding mechanism that cooperates with the guide plate installed on the top of the support, a discharge frame hinged to the side of the support, a vibration mechanism and a buffer mechanism that cooperate with the discharge frame on the top of the base, a material trough that cooperates with the guide plate at the center of the top of the discharge frame, the outlet of the material trough being adapted to the collection trough, a first filter screen, a second filter screen and a third filter screen being provided inside the material trough, a plurality of material distribution plates that cooperate with the guide plate being provided at the inlet of the material trough, and a gap filling component being provided between the inlet of the material trough and the guide plate.

[0007] Furthermore, the feeding mechanism includes mounting seats on both sides of the top of the support, a guide cylinder is fixed between the two mounting seats, the conical discharge port at the bottom of the guide cylinder is adapted to the guide inclined plate, a sliding sleeve is fixed at the top of the mounting seat, a sliding rod is vertically slidably connected inside the sliding sleeve, a connecting piece is fixed at the top of the sliding rod, a spring is sleeved on the outer surface of the sliding rod between the sliding sleeve and the connecting piece, a hopper is fixedly connected between the two connecting pieces, a screen is provided at the bottom discharge port of the hopper, and a vibration motor is provided on the back side of the outer surface of the hopper.

[0008] Furthermore, the vibration mechanism includes a motor fixed to the top of the base by a support frame, the side output end of the motor being connected to a cam via a shaft, and the cam being pressed together with the bottom of the discharge rack.

[0009] Furthermore, the buffer mechanism includes a fixed box fixed to the top of the base, a plurality of damping springs are provided at the bottom of the fixed box, a push plate is slidably connected inside the fixed box, the bottom of the push plate is connected to the top of the damping springs, and the top of the push plate extends through to the outside of the fixed box and is pressed together with the bottom of the discharge rack.

[0010] Furthermore, the top of the push plate is provided with an elastic buffer pad, and the fixing box is a detachable structure.

[0011] Furthermore, the gap filling assembly includes a slide rail installed at the bottom of the guide ramp, a slider slidably connected inside the slide rail, a second damping spring installed on one side inside the slide rail, the extension end of the second damping spring being connected and fixed to the slider, one end of a guide strip being connected to the bottom of the slider by a screw, the other end of the guide strip extending from bottom to top through the upper part of the guide ramp to the top of the material trough, and the end of the guide strip being connected and fixed to the inner top of the material trough by a screw.

[0012] Furthermore, the guide plate has perforations that cooperate with the guide belt.

[0013] Furthermore, an electrical control box is installed on one side of the base. The electrical control box contains a controller and a power supply. The controller is electrically connected to the vibration motor and the motor.

[0014] The beneficial effects of this utility model are:

[0015] Through the design of the feeding mechanism, the manufactured sand is introduced into the hopper during use. Then, the vibration motor is started through the electrical control box. The vibration motor drives the hopper to vibrate vertically. While the hopper is vibrating, it will drive the manufactured sand to be screened from the screen at the bottom discharge port. The screened manufactured sand then falls into the guide cylinder.

[0016] By designing a vibration mechanism, in order to speed up the screening process of manufactured sand through the three-layer filter screen, the motor can be started. The motor drives the cam to rotate, and the rotation of the cam will intermittently push the discharge frame to rotate at a small angle.

[0017] Through the design of the buffer mechanism, whenever the cam of the vibration mechanism pushes the discharge frame once, the bottom of the discharge frame will hit the top push plate of the fixed box when it descends. The elastic buffer pad on the top of the push plate will prevent the bottom of the discharge frame from being damaged. The bottom of the push plate will squeeze several damping springs for elastic buffering. In this way, the elastic impact between the discharge frame and the push plate will improve the screening of the manufactured sand inside the discharge frame.

[0018] By designing a gap-filling component, a gap will appear at the hinge end between the discharge frame and the support when the vibration mechanism drives the discharge frame to rotate. To prevent manufactured sand from entering this gap, a gap-filling component is set up. As the discharge frame rotates, it will pull the end of the guide belt to rotate synchronously. The other end of the guide belt passes through the guide inclined plate on the support from top to bottom and pulls the slider to slide in the slide rail. While sliding, the slider will squeeze the second damping spring, thereby realizing the stretching action of the guide belt. At the same time, when the discharge frame returns to its original position, the second damping spring can push the slider to return to its original position and pull the guide belt back to its original position. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a machine-made sand screening device according to the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of a machine-made sand screening device according to the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the buffer mechanism structure of a machine-made sand screening device according to the present invention;

[0023] Figure 4 This is a schematic cross-sectional view of the buffer mechanism of a manufactured sand screening device according to this utility model. Figure 1 ;

[0024] Figure 5 This is a schematic cross-sectional view of the buffer mechanism of a manufactured sand screening device according to this utility model. Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the gap filling component structure of a machine-made sand screening device according to the present invention.

[0026] In the diagram, 1. Base; 2. Bracket; 3. Mounting seat; 4. Guide cylinder; 5. Sliding sleeve; 6. Sliding rod; 7. Connector; 8. Hopper; 9. Discharge rack; 10. Material trough; 11. Distribution plate; 12. First filter screen; 13. Second filter screen; 14. Third filter screen; 15. Collection trough; 16. Motor; 17. Cam; 18. Fixing box; 19. Damping spring one; 20. Push plate; 21. Guide inclined plate; 22. Slide rail; 23. Slider; 24. Damping spring two; 25. Guide belt; 26. Perforation. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-6 This utility model provides a technical solution for a machined sand screening device, including a base 1, a collection trough 15 on one side of the base 1, a support 2 on the top of the base 1, a guide plate 21 at the center of the top of the support 2, a feeding mechanism that cooperates with the guide plate 21 installed on the top of the support 2, a discharge frame 9 hinged to the side of the support 2, a vibration mechanism and a buffer mechanism that cooperate with the discharge frame 9 on the top of the base 1, a material trough 10 that cooperates with the guide plate 21 at the center of the top of the discharge frame 9, the outlet of the material trough 10 being adapted to the collection trough 15, a first filter screen 12, a second filter screen 13 and a third filter screen 14 inside the material trough 10, and a number of... A material distribution plate 11 is provided to cooperate with the guide inclined plate 21. A gap filling component is provided between the feed inlet of the material trough 10 and the guide inclined plate 21. In use, the manufactured sand is introduced into the hopper 8, and then the vibration motor is started through the electrical control box. The vibration motor drives the hopper 8 to vibrate vertically. While the hopper 8 is vibrating, it will drive the manufactured sand to be screened from the screen at the bottom discharge port. The screened manufactured sand will fall into the guide cylinder 4 and then be discharged into the guide inclined plate 21. Due to the inclination of the guide inclined plate 21, the manufactured sand will be transported into the material trough 10 inside the discharge rack 9. As the manufactured sand falls along the material trough 10, it will pass through three different filter screens with different mesh sizes: the first filter screen 12, the second filter screen 13 and the third filter screen 14. Finally, it enters the collection tank 15.

[0029] See Figures 1-2 The feeding mechanism includes mounting seats 3 on both sides of the top of the support 2. A guide cylinder 4 is fixed between the two mounting seats 3. The conical discharge port at the bottom of the guide cylinder 4 is adapted to the guide inclined plate 21. A sliding sleeve 5 is fixed at the top of the mounting seat 3. A sliding rod 6 is vertically slidably connected inside the sliding sleeve 5. A connecting piece 7 is fixed at the top of the sliding rod 6. A spring is sleeved on the outer surface of the sliding rod 6 between the sliding sleeve 5 and the connecting piece 7. A hopper 8 is fixedly connected between the two connecting pieces 7. A screen is provided at the bottom discharge port of the hopper 8. A vibration motor is provided on the back side of the outer surface of the hopper 8. Through the design of the feeding mechanism, when in use, the manufactured sand is introduced into the hopper 8. Then, the vibration motor is started through the electrical control box. The vibration motor drives the hopper 8 to vibrate vertically. While the hopper 8 vibrates, it drives the manufactured sand to be screened from the screen at the bottom discharge port. The screened manufactured sand then falls into the guide cylinder 4.

[0030] See Figures 1-2 The vibration mechanism includes a motor 16 fixed to the top of the base 1 by a support frame. The side output end of the motor 16 is connected to a cam 17 via a shaft. The cam 17 is pressed together with the bottom of the discharge rack 9. An electrical control box is installed on one side of the base 1. The electrical control box contains a controller and a power supply. The controller is electrically connected to the vibration motor and the motor 16. Through the design of the vibration mechanism, in order to speed up the screening process of the manufactured sand through the three-layer filter screen, the motor 16 can be started. The motor 16 drives the cam 17 to rotate. The rotation of the cam 17 will intermittently push the discharge rack 9 to perform a small-angle rotation.

[0031] See Figures 3-5 The buffer mechanism includes a fixed box 18 fixed to the top of the base 1. The bottom of the fixed box 18 is provided with several damping springs 19. A push plate 20 is slidably connected inside the fixed box 18. The bottom of the push plate 20 is connected to the top of the damping springs 19. The top of the push plate 20 extends to the outside of the fixed box 18 and is pressed against the bottom of the discharge rack 9. An elastic buffer pad is provided on the top of the push plate 20. The fixed box 18 is a detachable structure. Through the design of the buffer mechanism, whenever the cam 17 of the vibration mechanism pushes the discharge rack 9 once, the bottom of the discharge rack 9 will hit the push plate 20 on the top of the fixed box 18 when it descends. The elastic buffer pad on the top of the push plate 20 will prevent the bottom of the discharge rack 9 from being damaged. The bottom of the push plate 20 will compress several damping springs 19 for elastic buffering. Thus, the elastic impact between the discharge rack 9 and the push plate 20 improves the screening of the manufactured sand inside the discharge rack 9.

[0032] See Figure 6The gap-filling assembly includes a slide rail 22 installed at the bottom of the guide ramp 21. A slider 23 is slidably connected inside the slide rail 22. A damping spring 24 is installed on one side inside the slide rail 22. The telescopic end of the damping spring 24 is connected and fixed to the slider 23. One end of a guide strip 25 is connected to the bottom of the slider 23 by screws. The other end of the guide strip 25 extends from bottom to top through the guide ramp 21 to the top of the material trough 10. The end of the guide strip 25 is connected and fixed to the inner top of the material trough 10 by screws. The guide ramp 21 has a through hole 26 that mates with the guide strip 25. The gap filling component is designed so that when the vibrating mechanism drives the discharge frame 9 to rotate, a gap will appear at the hinge end between the discharge frame 9 and the support 2. In order to prevent the machine sand from entering the gap, a gap filling component is set. When the discharge frame 9 rotates, it will pull the end of the guide belt 25 to rotate synchronously. The other end of the guide belt 25 passes through the guide inclined plate 21 on the support 2 from top to bottom and pulls the slider 23 to slide in the slide rail 22. While sliding, the slider 23 will squeeze the second damping spring 24, thereby realizing the stretching action of the guide belt 25. At the same time, when the discharge frame 9 returns to its original position, the second damping spring 24 can push the slider 23 to return to its original position and pull the guide belt 25 back to its original position.

[0033] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the electrical equipment are all existing technologies that can be fully implemented by those skilled in the art, and there is no need to elaborate. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.

[0034] In operation, manufactured sand is fed into hopper 8, and then the vibrating motor is started via the electrical control box. The vibrating motor drives hopper 8 to vibrate vertically. Simultaneously, the vibration of hopper 8 causes the manufactured sand to be screened through the screen at the bottom outlet. The screened manufactured sand then descends into the guide cylinder 4 and is subsequently discharged into the guide inclined plate 21. Due to its inclined direction, the guide inclined plate 21 conveys the manufactured sand into the trough 10 inside the discharge rack 9. As the manufactured sand descends along the trough 10, it passes sequentially through three different filter screens: the first filter screen 12, the second filter screen 13, and the third filter screen 14, each with a different mesh size. Finally, it enters the collection tank 15. In this process, in order to speed up the screening process of the manufactured sand through the three-layer filter screen, the motor 16 can be started. The motor 16 drives the cam 17 to rotate. The rotation of the cam 17 will intermittently push the discharge rack 9 to rotate at a small angle. Each time the cam 17 pushes once, the bottom of the discharge rack 9 will hit the top push plate 20 of the fixed box 18 when it descends. The elastic buffer pad on the top of the push plate 20 will prevent the bottom of the discharge rack 9 from being damaged. The bottom of the push plate 20 will squeeze several damping springs 19 for elastic buffering. In this way, the screening of the manufactured sand inside the discharge rack 9 is improved by the elastic impact between the discharge rack 9 and the push plate 20.

[0035] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A machine-made sand screening device, characterized in that, Includes a base (1), a collection groove (15) on one side of the base (1), a support (2) on the top of the base (1), a guide plate (21) at the center of the top of the support (2), a feeding mechanism that cooperates with the guide plate (21) installed on the top of the support (2), a discharge rack (9) hinged to the side of the support (2), a vibration mechanism and a buffer mechanism that cooperate with the discharge rack (9) on the top of the base (1), and the top of the discharge rack (9) A material trough (10) is provided at the center of the part to cooperate with the guide plate (21). The outlet of the material trough (10) is adapted to the collection trough (15). The material trough (10) is provided with a first filter screen (12), a second filter screen (13) and a third filter screen (14). The inlet of the material trough (10) is provided with a number of material distribution plates (11) that cooperate with the guide plate (21). A gap filling component is provided between the inlet of the material trough (10) and the guide plate (21).

2. The manufactured sand screening device according to claim 1, characterized in that, The feeding mechanism includes mounting seats (3) on both sides of the top of the bracket (2), a guide cylinder (4) is fixed between the two mounting seats (3), the conical discharge port at the bottom of the guide cylinder (4) is adapted to the guide inclined plate (21), a sliding sleeve (5) is fixed at the top of the mounting seat (3), a sliding rod (6) is vertically slidably connected inside the sliding sleeve (5), a connecting piece (7) is fixed at the top of the sliding rod (6), a spring is sleeved on the outer surface of the sliding rod (6) between the sliding sleeve (5) and the connecting piece (7), a hopper (8) is fixedly connected between the two connecting pieces (7), a screen is provided at the bottom discharge port of the hopper (8), and a vibration motor is provided on the back side of the outer surface of the hopper (8).

3. The manufactured sand screening device according to claim 2, characterized in that, The vibration mechanism includes a motor (16) fixed to the top of the base (1) by a support frame. The side output end of the motor (16) is connected to a cam (17) by a shaft. The cam (17) is pressed together with the bottom of the discharge rack (9).

4. The manufactured sand screening device according to claim 3, characterized in that, The buffer mechanism includes a fixed box (18) fixed to the top of the base (1). The bottom of the fixed box (18) is provided with several damping springs (19). A push plate (20) is slidably connected inside the fixed box (18). The bottom of the push plate (20) is connected to the top of the damping springs (19). The top of the push plate (20) extends through to the outside of the fixed box (18) and is pressed together with the bottom of the discharge rack (9).

5. A manufactured sand screening device according to claim 4, characterized in that, The top of the push plate (20) is provided with an elastic buffer pad, and the fixed box (18) is a detachable structure.

6. A manufactured sand screening device according to claim 5, characterized in that, The gap filling assembly includes a slide rail (22) installed at the bottom of the guide ramp (21), a slider (23) is slidably connected inside the slide rail (22), a second damping spring (24) is installed on one side inside the slide rail (22), the telescopic end of the second damping spring (24) is connected and fixed to the slider (23), one end of the guide strip (25) is connected to the bottom of the slider (23) by screws, the other end of the guide strip (25) extends from bottom to top through the guide ramp (21) to the top of the material trough (10), and the end of the guide strip (25) is connected and fixed to the inner top of the material trough (10) by screws.

7. A manufactured sand screening device according to claim 6, characterized in that, The guide plate (21) has perforations (26) that cooperate with the guide belt (25).

8. A manufactured sand screening device according to claim 7, characterized in that, An electrical control box is installed on one side of the base (1). The electrical control box contains a controller and a power supply. The controller is electrically connected to the vibration motor and the motor (16).

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