Multistage material screening device
By designing a multi-stage material screening device, the up and down reciprocating movement of the screening mechanism is achieved by using the cooperation of the support shaft, cam and T-block, which solves the problem of poor sorting caused by the mixed size of materials in the existing color sorting machine and improves the sorting effect.
Patent Information
- Application Number
- CN202422299140.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Existing color sorting machines are difficult to effectively classify the material according to the size of the material, resulting in the mixed materials of particles of different sizes, larger particles tend to block smaller particles, affecting the sorting effect.
A multi-stage screening device for materials is designed, including a screening box and a color selection box. The first and second screening mechanisms are provided inside. The cam is driven to cooperate with the driven member through the support shaft, and combined with the movable cooperation of the T-shaped block and the T-shaped groove and the elastic action of the spring, the screening mechanism is reciprocated up and down, realizing multi-stage screening, and conveyed to the color selection box through the conveyor belt for further sorting.
Multi-stage screening is realized according to the size of material particles, improving the sorting effect of materials, solving the problem of poor sorting caused by the mixed material size in the prior art, and ensuring that larger particles do not block the sorting process of smaller particles.
Smart Images
Figure CN223209969U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of color sorters, in particular to a multi-stage material screening device. Background Art
[0002] Color sorters are devices that automatically separate particles of different colors from granular materials using photoelectric detection technology based on the differences in the optical properties of the materials. They are widely used in the grain, food, pigment and chemical industries. They are very effective in sorting difficult impurities and special materials such as recycled plastic sheets, plastic granules, corn, various beans, various types of rice, minerals, chili peppers, Sichuan peppercorns, garlic cloves, melon seeds, raisins, seeds, Chinese medicine, dried shrimps, dried shrimps, anchovies, glass, metals, and rods of the same color. They are widely used in bulk materials or packaging industrial products, and food quality inspection and grading.
[0003] At present, the existing color sorters mainly use the differences in the optical properties of materials for sorting. They are suitable for materials with obvious color differences, but are not convenient for classification according to the different sizes of materials. The sorting effect of materials with different particle sizes is poor. Moreover, when materials of different particle sizes are mixed together and enter the color sorting area through the sorting channel, the larger particles of the materials are likely to block the smaller particles, affecting the sorting effect.
[0004] In response to the above problems, we propose a multi-stage material screening device. Utility Model Content
[0005] Technical Solution
[0006] In order to solve the above technical problems, the utility model provides a multi-stage material screening device, including a screening box and a color sorting box, a conveyor belt is installed between the screening box and the color sorting box, and a first screening mechanism and a second screening mechanism are sequentially arranged inside the screening box, a support shaft is rotatably arranged on the lower side of the interior of the screening box, a cam is arranged on the support shaft, and a follower is arranged at the bottom of the second screening mechanism, which cooperates with the cam, two T-shaped slots are relatively opened on one side of the inner wall of the screening box, a T-shaped block is slidably arranged inside the T-shaped slot, and the upper and lower T-shaped blocks are respectively connected to the first screening mechanism and the second screening mechanism, and a second spring is connected between the lower end of the T-shaped block and the inner wall of the T-shaped slot.
[0007] The first screening mechanism includes a first screen frame, a first discharge port, a first filter plate and a first material guide trough. The first screen frame is movably arranged on the upper side of the interior of the screening box. The first discharge port is opened on the right surface of the screening box, and the outlet end of the first screen frame passes through the first discharge port. The first filter plate is installed at the bottom inner side of the first screen frame and cooperates with the inner cavity of the screening box. The first material guide trough is obliquely fixed to one side of the bottom of the first screen frame.
[0008] The second screening mechanism includes a second screen frame, a second discharge port, a second filter plate and a second material guide trough. The second screen frame is tilted and fixed to one side of the bottom of the first screen frame. The outlet end of the first material guide trough cooperates with the second screen frame. The second discharge port is opened on the lower side of the left surface of the screening box. The outlet end of the second screen frame passes through the second discharge port. The second filter plate is fixed to the bottom inner side of the second screen frame and cooperates with the inner cavity of the screening box. The second material guide trough is tilted and fixed to one side of the bottom of the second screen frame. The outlet end of the second material guide trough cooperates with the conveyor belt. The follower is fixed to the bottom of the second material guide trough.
[0009] The upper and lower T-shaped blocks are respectively fixedly connected to the first screen frame and the side of the second material guide trough away from the outlet end. A plurality of first springs are connected between the bottom side of the first screen frame and the inner wall of the first discharge port.
[0010] A feed hopper is installed at the upper port of the screening box, and the inner wall of the connection between the feed hopper and the screening box is relatively inclined and fixed with a first material guide plate and a second material guide plate. A cross bar is fixed on the upper side of the inside of the first screen frame, and several vibrating rods are fixed on the cross bar. The gaps between the vibrating rods and the first material guide plate and the second material guide plate cooperate with each other.
[0011] A support frame is fixed between the screening box and the bottom of the color sorting box, a color sorting mechanism is installed inside the color sorting box, a driving motor is installed on the rear side of the screening box, the output shaft of the driving motor is connected to the rear end of the support shaft, a first material receiving box is provided on the outside of the first discharge port, which cooperates with the outlet end of the first screen frame, and a second material receiving box is provided on the outside of the second discharge port, which cooperates with the outlet end of the second screen frame.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The utility model facilitates the rotation of the cam by the support shaft, and under the mutual cooperation of the cam and the follower, combined with the active cooperation of the T-shaped block and the T-shaped slot, and the elastic action of the second spring, the first screening mechanism and the second screening mechanism are driven to move up and down synchronously, thereby achieving the purpose of multi-stage screening according to the different particle sizes of the materials. Combined with the conveyor belt, it is convenient to convey the materials of the same size after multi-stage screening to the inside of the color sorting box for further color sorting, which effectively improves the sorting effect of the materials, and solves the problem that the existing color sorter is mainly suitable for materials with obvious color differences, is not convenient for classifying materials according to different sizes, and has poor sorting effect on materials of different particle sizes. At the same time, it solves the problem that when materials of different particle sizes are mixed together and enter the color sorting area through the material distribution channel, the materials with larger particles are easily blocked by the materials with smaller particles, thereby affecting the sorting effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a top view of the utility model;
[0016] Figure 3 for Figure 2 Structural diagram of the middle section AA;
[0017] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at B in the middle;
[0018] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at point C in the middle.
[0019] The marks in the accompanying drawings are: 1. Screening box; 2. Color sorting box; 3. Conveyor belt; 4. First screen frame; 5. First discharge port; 6. First filter plate; 7. First material guide trough; 8. First material receiving box; 9. Second screen frame; 10. Second discharge port; 11. Second filter plate; 12. Second material guide trough; 13. Second material receiving box; 14. Support shaft; 15. Cam; 16. Follower; 17. First spring; 18. T-slot; 19. T-block; 20. Second spring; 21. First material guide plate; 22. Second material guide plate; 23. Feed hopper; 24. Cross bar; 25. Vibrating rod. DETAILED DESCRIPTION
[0020] This specific embodiment is a multi-stage material screening device, such as Figure 1-Figure 5 As shown, the multi-stage material screening device includes a screening box 1 and a color sorting box 2, a conveyor belt 3 is installed between the screening box 1 and the color sorting box 2, a first screening mechanism and a second screening mechanism are sequentially arranged inside the screening box 1, a support shaft 14 is rotatably arranged on the lower side of the interior of the screening box 1, a cam 15 is arranged on the support shaft 14, a follower 16 is arranged at the bottom of the second screening mechanism, which cooperates with the cam 15, two T-slots 18 are relatively opened on one side of the inner wall of the screening box 1, a T-block 19 is slidingly arranged inside the T-slot 18, the upper and lower T-blocks 19 are respectively connected to the first screening mechanism and the second screening mechanism, and a second spring 20 is connected between the lower end of the T-block 19 and the inner wall of the T-slot 18.
[0021] The support shaft 14 facilitates the rotation of the cam 15. With the cooperation between the cam 15 and the follower 16, combined with the active cooperation between the T-shaped block 19 and the T-shaped slot 18, and the elastic action of the second spring 20, the first screening mechanism and the second screening mechanism are driven to synchronously reciprocate up and down, thereby achieving the purpose of multi-stage screening according to the different particle sizes of the materials. Combined with the conveyor belt 3, it is convenient to convey the materials of the same size after multi-stage screening to the inside of the color sorting box 2 for further color sorting, thereby effectively improving the sorting effect of the materials.
[0022] The first screening mechanism includes a first screen frame 4, a first discharge port 5, a first filter plate 6 and a first material guide trough 7. The first screen frame 4 is movably arranged on the upper side of the interior of the screening box 1. The first discharge port 5 is opened on the right surface of the screening box 1, and the outlet end of the first screen frame 4 passes through the first discharge port 5. The first filter plate 6 is installed at the bottom inner side of the first screen frame 4 and cooperates with the inner cavity of the screening box 1. The first material guide trough 7 is obliquely fixed to one side of the bottom of the first screen frame 4.
[0023] The second screening mechanism includes a second screen frame 9, a second discharge port 10, a second filter plate 11 and a second material guide trough 12. The second screen frame 9 is tilted and fixed to one side of the bottom of the first screen frame 4. The outlet end of the first material guide trough 7 cooperates with the second screen frame 9. The second discharge port 10 is opened on the lower side of the left surface of the screening box 1. The outlet end of the second screen frame 9 passes through the second discharge port 10. The second filter plate 11 is fixed to the inner bottom of the second screen frame 9 and cooperates with the inner cavity of the screening box 1. The second material guide trough 12 is tilted and fixed to one side of the bottom of the second screen frame 9. The outlet end of the second material guide trough 12 cooperates with the conveyor belt 3. The follower 16 is fixed to the bottom of the second material guide trough 12.
[0024] The upper and lower T-shaped blocks 19 are fixedly connected to the first screen frame 4 and the side of the second material guide trough 12 away from the outlet end respectively. A plurality of first springs 17 are connected between the bottom side of the first screen frame 4 and the inner wall of the first discharge port 5.
[0025] A feed hopper 23 is installed at the upper port of the screening box 1. The first guide plate 21 and the second guide plate 22 are fixed on the inner wall of the connection between the feed hopper 23 and the screening box 1 at a relative inclination. A cross bar 24 is fixed on the upper side of the inside of the first screen frame 4. Several vibrating rods 25 are fixed on the cross bar 24. The gaps between the vibrating rods 25 and the first guide plate 21 and the second guide plate 22 cooperate with each other.
[0026] A support frame is fixed between the screening box 1 and the bottom of the color sorting box 2 to ensure the support stability of the bottom of the device. A color sorting mechanism is installed inside the color sorting box 2 to facilitate further color sorting of the material. A driving motor is installed on the rear side of the screening box 1, and the output shaft of the driving motor is connected to the rear end of the support shaft 14 to facilitate driving the support shaft 14 to rotate, thereby ensuring the use effect of the first screening mechanism and the second screening mechanism. A first material receiving box 8 is provided on the outside of the first discharge port 5, which cooperates with the outlet end of the first screen frame 4 to facilitate the collection of larger particles of materials screened out by the first screen frame 4, and facilitates subsequent unified processing. A second material receiving box 13 is provided on the outside of the second discharge port 10 to cooperate with the outlet end of the second screen frame 9 to facilitate the collection of smaller particles of materials screened out by the second screen frame 9, and facilitates subsequent unified processing.
[0027] Example:
[0028] When the material is sorted, the driving motor is first started to drive the support shaft 14 to rotate. The rotation of the support shaft 14 drives the rotation of the cam 15. Combined with the mutual cooperation of the cam 15 and the follower 16, when the protrusion of the cam 15 contacts the follower 16, the follower 16 is pushed upward, and under the sliding cooperation of the T-shaped block 19 and the T-shaped slot 18, the second guide trough 12, the second screen frame 9, the first guide trough 7 and the first screen frame 4 are stably pushed upward, and the first spring 17 and the second spring 20 are stretched. When the protrusion of the cam 15 is away from the follower 16, under the action of gravity and the elastic action of the first spring 17 and the second spring 20, the second guide trough 12, the second screen frame 9, the first guide trough 7 and the first screen frame 4 move downward, thereby achieving the purpose of adjusting the second guide trough 12, the second screen frame 9, the first guide trough 7 and the first screen frame 4 to reciprocate up and down;
[0029] Secondly, the material to be sorted is fed into the feed hopper 23. Under the tilting action of the first guide plate 21 and the second guide plate 22, the fed material slowly slides into the first screen frame 4. As the first screen frame 4 reciprocates up and down, under the action of the first filter plate 6, the larger particles of material are filtered out and slide to the right along the first screen frame 4 and fall into the external first receiving box 8.
[0030] Small particles of material pass through the filter holes on the first filter plate 6 and fall into the first material guide trough 7. Under the tilting action of the first material guide trough 7, they slide to the right and fall into the second screen frame 9. During the up and down reciprocating motion of the second screen frame 9, combined with the second filter plate 11, the material falling into the second screen frame 9 is further filtered. Medium particles of material are filtered out and slide to the left along the second screen frame 9 and fall into the second material receiving box 13 outside. The smallest particles of material pass through the filter holes on the second filter plate 11 and fall into the second material guide trough 12. Under the tilting action of the second material guide trough 12, they slide to the right and fall onto the conveyor belt 3.
[0031] The smallest particles of materials falling on the conveyor belt 3 are transported to the right into the color sorting box 2 for further color sorting, which effectively improves the sorting effect of the materials;
[0032] The first receiving box 8 and the second receiving box 13 collect materials of similar sizes. When a sufficient amount is collected, color sorting is performed again to ensure the sorting effect of the materials.
[0033] In the process of adjusting the up and down reciprocating motion of the first screen frame 4, under the action of the cross bar 24, the vibrating rod 25 is driven to reciprocate up and down synchronously, vibrating the material falling between the first guide plate 21 and the second guide plate 22, ensuring that the material falls smoothly into the interior of the first screen frame 4 on the lower side, avoiding the accumulation of material in the feed hopper 23, causing blockage, and affecting the material sorting progress.
[0034] Compared with the prior art, the utility model first performs multi-stage screening on the materials to be sorted under the joint action of the screening box 1, the first screening mechanism and the second screening mechanism, so that materials of similar sizes are screened out, and then, with the mutual cooperation of the color sorting box 2 and the color sorting mechanism, the materials of similar sizes are further color sorted, thereby effectively improving the sorting effect of the materials.
[0035] It should be further explained that the installation structure, connection method or setting method of each component in the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented;
[0036] At the same time, in the utility model, limit plates are provided on both sides of the conveyor belt 3 to prevent the materials on the conveyor belt 3 from falling off;
[0037] The color sorting mechanism of the present invention is composed of components such as a light source, a photoelectric sensor, and an air blow valve. Those skilled in the art can install, debug, and use them according to requirements.
[0038] All technical features in this embodiment can be freely combined according to actual needs.
[0039] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A multi-stage material screening device, comprising a screening box (1) and a color sorting box (2), characterized in that: A conveyor belt (3) is installed between the screening box (1) and the color sorting box (2), and a first screening mechanism and a second screening mechanism are sequentially arranged inside the screening box (1). A support shaft (14) is rotatably arranged on the lower side of the interior of the screening box (1), and a cam (15) is arranged on the support shaft (14). A follower (16) is arranged at the bottom of the second screening mechanism and cooperates with the cam (15). Two T-shaped grooves (18) are relatively opened on one side of the inner wall of the screening box (1), and a T-shaped block (19) is slidably arranged inside the T-shaped groove (18). The upper and lower T-shaped blocks (19) are respectively connected to the first screening mechanism and the second screening mechanism, and a second spring (20) is connected between the lower end of the T-shaped block (19) and the inner wall of the T-shaped groove (18).
2. A multi-stage material screening device according to claim 1, characterized in that: The first screening mechanism comprises a first screen frame (4), a first discharge port (5), a first filter plate (6) and a first guide trough (7); the first screen frame (4) is movably arranged on the upper side of the interior of the screening box (1); the first discharge port (5) is opened on the right side surface of the screening box (1), and the outlet end of the first screen frame (4) passes through the first discharge port (5); the first filter plate (6) is installed at the bottom inside the first screen frame (4) and cooperates with the inner cavity of the screening box (1); the first guide trough (7) is fixed obliquely on one side of the bottom of the first screen frame (4).
3. A multi-stage material screening device according to claim 2, characterized in that: The second screening mechanism comprises a second screen frame (9), a second discharge port (10), a second filter plate (11) and a second guide trough (12); the second screen frame (9) is fixed obliquely to one side of the bottom of the first screen frame (4); the outlet end of the first guide trough (7) cooperates with the second screen frame (9); the second discharge port (10) is opened on the lower side of the left surface of the screening box (1); the outlet end of the second screen frame (9) passes through the second discharge port (10); the second filter plate (11) is fixed to the inner bottom of the second screen frame (9) and cooperates with the inner cavity of the screening box (1); the second guide trough (12) is fixed obliquely to one side of the bottom of the second screen frame (9); the outlet end of the second guide trough (12) cooperates with the conveyor belt (3); and the follower (16) is fixed to the bottom of the second guide trough (12).
4. A multi-stage material screening device according to claim 3, characterized in that: The upper and lower T-shaped blocks (19) are respectively fixedly connected to the first screen frame (4) and the side of the second material guide trough (12) away from the outlet end, and a plurality of first springs (17) are connected between the bottom side of the first screen frame (4) and the inner wall of the first discharge port (5).
5. A multi-stage material screening device according to claim 4, characterized in that: A feed hopper (23) is installed at the upper port of the screening box (1), and a first material guide plate (21) and a second material guide plate (22) are fixed to the inner wall of the connection between the feed hopper (23) and the screening box (1) at a relative inclination. A cross bar (24) is fixed on the upper side of the interior of the first screen frame (4), and a plurality of vibrating rods (25) are fixed on the cross bar (24). The gaps between the vibrating rods (25) and the first material guide plate (21) and the second material guide plate (22) cooperate with each other.
6. A multi-stage material screening device according to claim 5, characterized in that: A support frame is fixed between the bottom of the screening box (1) and the color sorting box (2), a color sorting mechanism is installed inside the color sorting box (2), a driving motor is installed on the rear side of the screening box (1), and the output shaft of the driving motor is connected to the rear end of the support shaft (14), a first material receiving box (8) is provided on the outside of the first discharge port (5), and cooperates with the outlet end of the first screen frame (4), and a second material receiving box (13) is provided on the outside of the second discharge port (10), and cooperates with the outlet end of the second screen frame (9).