Feeding device for guiding and screening round-like particle materials

Abstract

The utility model relates to the technical field of color sorter feeding, and discloses a feeding device for guiding and screening round-like particle materials, which comprises a vibrating screen, a hopper is mounted on the vibrating screen, a detachable movable screen is mounted in the hopper, the movable screen comprises a round bar and a frame, the round bar is arranged in the frame, and the round bar is arranged in the frame. A fixing mechanism is further arranged at one end of the frame and used for fixing the frame and the hopper. Due to the fact that the movable screen composed of the round bars is installed on the hopper, during discharging, large-particle round-particle materials can stay between every two adjacent round bars and move along the round bars in order to be discharged, and small-particle materials fall into the hopper and are removed through the screen holes formed in the hopper in advance. The blanking stability of large-particle round materials is effectively guaranteed, meanwhile, the effect of screening out crushed foam materials is achieved, and the sorting precision of the color sorter is improved.

Description

Technical Field

[0001] The utility model relates to the field of the feeding of color sorters, in particular to a feeding device for guiding and screening roundish granular materials. Background Art

[0002] Generally, a color sorter is a device for sorting materials according to the differences in the optical characteristics or shape features of the materials to be sorted. In the prior art, the vibrating hoppers of color sorters are divided into electromagnetic vibration and large motor vibration. In the actual process of material sorting, for some slightly larger materials, electromagnetic vibration cannot meet the requirements of material feeding, and a large motor vibrating hopper needs to be used to complete the feeding. For round materials, although the large vibrating hopper can complete the spreading and feeding of materials, the round materials are prone to roll irregularly, and at the same time, some pulverized materials contained in the materials cannot be effectively screened out, so they enter the belt together with the materials to be selected for sorting, affecting the sorting accuracy.

[0003] Currently, the common practice of using a large vibrating screen is to open sieve holes at the bottom of the large vibrating screen to remove some powdered and crushed materials during the vibration process. However, it is difficult to determine the size of the openings at the bottom of the large vibrating screen. When the openings are made large, the powdered and crushed materials can pass through smoothly, but the complete round materials are likely to get stuck in the holes. When the openings are made small, some of the powdered and crushed materials may not be screened out smoothly, and it is easy to cause the blockage of the sieve holes of the vibrating screen. At the same time, when the round materials are fed into the vibrating screen, they are prone to scatter and roll, resulting in inconsistent feeding trajectories of the vibrating screen. Therefore, for roundish granular materials, this feeding method has certain limitations. Summary of the Utility Model

[0004] In order to solve the technical problem of the sorting and feeding of roundish materials, the utility model provides a feeding device for guiding and screening roundish granular materials.

[0005] The utility model is realized by adopting the following technical solutions: a feeding device for guiding and screening roundish granular materials, including a vibrating screen, a hopper is installed on the vibrating screen, a detachable movable screen is installed in the hopper, the movable screen includes round rods and a frame, the round rods are arranged in the frame, and a fixing mechanism is further arranged at one end of the frame, and the fixing mechanism is used for fixing the frame and the hopper.

[0006] Through the above technical solutions, during feeding, the materials will first fall onto the upper screen composed of round rods. The materials with small particles will pass through the round rods and directly fall into the lower hopper, while the roundish granular materials will fall between adjacent two round rods. When the vibrating screen is started, the powdered small particle materials are vibrated and screened by the hopper, and the large roundish granular materials slide down along the round rods. On the one hand, it can avoid the blockage of the mesh holes by the larger roundish granular materials, and on the other hand, it can also avoid the irregular movement of the roundish granular materials.

[0007] As a further improvement of the above solution, an installation opening is provided on one side of the vibrating screen, and a clamping plate is clamped on the installation opening.

[0008] As a further improvement of the above solution, mounting holes are provided on both sides of the clamping plate. A clamping block is movably installed in the mounting holes. One end of the clamping block extends out of the mounting holes, and corresponding holes are provided at the position of the side wall of the installation pair. A spring is also connected between the clamping block and the mounting holes. One side of the clamping block is fixedly connected to a dial rod. One end of the dial rod extends out of the clamping plate, and a long circular hole communicating with the mounting hole is provided at the corresponding position of the clamping plate.

[0009] As a further improvement of the above solution, the fixing mechanism includes a fixing plate and a fixing shaft. The fixing mechanism is arranged outside the hopper. The fixing plate passes through the installation opening and is fixedly connected to the frame. The fixing plate is threadedly connected with the fixing shaft.

[0010] Through the above technical solution, the clamping plate and the hopper are integrally clamped and fixed. After the movable screen is installed, the clamping plate can press the fixing plate in the fixing mechanism to prevent it from shaking. At the same time, after the fixing shaft in the fixing mechanism rotates, the movable screen and the hopper can be closely attached to avoid abnormal noise caused by a gap between the two during the operation of the vibrating screen.

[0011] As a further improvement of the above solution, a cross plate is also fixedly connected inside the frame, and the round bar is fixedly connected to the cross plate.

[0012] As a further improvement of the above solution, a limiting baffle is fixedly connected to the inner side of the hopper. The frame is clamped between the limiting baffle and the side wall of the hopper. At the same time, a rubber pad is laid at the bottom of the frame.

[0013] Through the above technical solution, the rubber pad can avoid hard collision between the frame and the limiting baffle during the operation of the vibrating screen, prevent equipment damage, and also reduce abnormal noise caused by the collision.

[0014] As a further improvement of the above solution, fixing holes are provided on the side wall of the limiting baffle. A fixing pin is installed in the fixing holes. At the same time, a fixing block is also fixedly connected to the fixing pin, and fixing chutes corresponding to the fixing block are provided on the inner wall of the fixing holes.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By installing a new movable screen on the hopper, when the material is discharged, the material will first come into contact with the screen composed of several round rods. The round-particle materials with large particles will stay between two adjacent round rods and move orderly along the round rods for discharging. The materials with small particles will fall into the hopper and be removed through the pre-opened screen holes on the hopper, effectively ensuring the discharging stability of the round materials with large particles. At the same time, the effect of screening out the pulverized foam materials is achieved, improving the sorting accuracy of the color sorter. Moreover, the movable screen with different gap sizes can be replaced as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of the present utility model in use state;

[0018] Figure 2 FIG. is a schematic diagram of the connection between the hopper and the movable screen of the present utility model;

[0019] Figure 3 FIG. is a schematic diagram of the connection relationship between the hopper and the limit baffle of the present utility model;

[0020] Figure 4 FIG. is a schematic diagram of the connection relationship between the hopper and the clamping plate of the present utility model;

[0021] Figure 5 FIG. is a top view of the partial structure of the movable screen of the present utility model;

[0022] Figure 6 FIG. is a schematic diagram of the connection relationship between the fixing pin and the limit baffle of the present utility model.

[0023] MAIN SYMBOL DESCRIPTION: 1. vibrating screen; 2. hopper; 3. movable screen; 4. round rod; 5. frame; 6. cross plate; 7. fixing mechanism; 8. fixing plate; 9. fixing shaft; 10. installation opening; 11. clamping plate; 12. installation hole; 13. clamping block; 14. spring; 15. lever; 16. limit baffle; 17. rubber pad; 18. fixing hole; 19. fixing pin; 20. fixing block; 21. fixing chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, in combination with the drawings and the specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0025] Please refer to Figure 1 , a feeding device for guiding and screening round-particle materials in this embodiment includes a vibrating screen 1, and a hopper 2 is installed on the vibrating screen 1. The vibrating screen 1 and the hopper 2 are existing structures. Screen holes are pre-opened at the bottom of the hopper 2. In order to make the discharging work of round materials more convenient, a new movable screen 3 is added to the existing hopper 2.

[0026] Specifically, the movable screen 3 includes a frame 5, a cross plate 6, and a number of round rods 4. First, the overall shape of the frame 5 is U-shaped. The cross plate 6 and the frame 5 are welded and fixed to play a role in supporting and stabilizing. In addition, a number of round rods 4 are evenly arranged on the cross plate 6 and are also welded and fixed to the cross plate 6.

[0027] When in use, the movable screen 3 needs to be installed in the hopper 2. The bottom of the hopper 2 is pre-opened with sieve holes. The uppermost movable screen 3 will first come into contact with the material, that is, it plays a screening role through the round rods 4. For round granular materials, those with a larger diameter will stay between two adjacent round rods 4, and the smaller powder particles will fall onto the lower hopper 2.

[0028] To install and fix the movable screen 3, first, a limit baffle 16 is welded and fixed on the inner wall of the hopper 2. During installation, the frame 5 will be clamped in the groove formed by the limit baffle 16 and the side wall of the hopper 2. Since the hopper 2 is in a continuous vibrating state during use, a rubber pad 17 is laid at the bottom of the frame 5 to reduce the abnormal noise generated due to vibration.

[0029] In addition, to fix the frame 5 and prevent the entire movable screen 3 from disengaging during vibration, a fixing hole 18 is opened on the limit baffle 16, and a cylindrical fixing pin 19 is installed in the fixing hole 18. Two fixing blocks 20 are also fixed to the fixing pin 19. To facilitate the movement and fixing of the fixing block 20 and the fixing pin 19, a fixing chute 21 is opened on the inner side wall of the fixing hole 18.

[0030] When the fixing pin 19 and the fixing block 20 move along the fixing slider until one end of the fixing pin 19 enters the position between the limit baffle 16 and the wall of the hopper 2, that is, one end of the fixing pin 19 is located above the frame 5, it can block the frame 5 from the top and prevent the frame 5 from disengaging during the screening process of the vibrating screen 1. On the contrary, when disassembly and replacement are required, the fixing pin 19 is pulled out so that its end portion moves out of the position between the limit baffle 16 and the wall of the hopper 2, which will not affect the disassembly and assembly work of the frame 5. Moreover, due to the fixing chute 21 on the inner wall of the fixing hole 18, it can prevent the fixing pin 19 and the fixing block 20 from disengaging during vibration. The fixing pin 19 plays a role similar to a lock, cooperating with the limit baffle 16 and the wall of the hopper 2 to lock the frame 5.

[0031] In addition, to further fix the movable screen 3, a fixing mechanism 7 is fixedly connected to one end of the frame 5, and the fixing mechanism 7 is arranged outside the hopper 2. The fixing mechanism 7 passes through the wall of the hopper 2 and is fixedly connected to the frame 5 inside the hopper 2. Specifically, the fixing mechanism 7 includes a fixing plate 8 and a fixing shaft 9. The fixing plate 8 is also in a U-shaped structure. To install the fixing plate 8, an installation opening is opened on one side wall of the hopper 2. The two ends of the fixing plate 8 pass through the installation opening 10 and are fixedly connected to the frame 5 inside the hopper 2.

[0032] Threaded holes are provided in the fixing plate 8, and the fixing shaft 9 passes through the threaded holes. The fixing shaft 9 is threadedly connected to the fixing plate 8. Therefore, the fixing plate 8 is fixed in place. When the fixing shaft 9 is rotated, the fixing shaft 9 moves forward, and one end thereof will contact the outer side wall of the hopper 2. Therefore, the fixing shaft 9 cooperates with the frame 5 to clamp and fix the side wall of the hopper 2 from the inside and outside. Further prevent the movable screen 3 from shifting during the vibration of the hopper 2.

[0033] Further, a clamping plate 11 is also provided at the installation port 10. When installing the above-mentioned fixing plate 8, the clamping plate 11 needs to be removed. After the fixing plate 8 is installed, the clamping plate 11 needs to be reset. Specifically, installation holes 12 are provided on both side walls of the clamping plate 11, and clamping blocks 13 are movably installed in the installation holes 12. A spring 14 is also connected between the clamping blocks 13 and the inner wall of the installation holes 12. Under the action of the spring 14, one end of the clamping block 13 can extend out of the installation hole 12. In addition, holes are also provided on the side wall of the outer installation port at positions corresponding to the clamping blocks 13, that is, one end of the clamping block 13 can be inserted into the hopper 2. The clamping plate 11 and the hopper 2 are fixed together. After the clamping plate 11 is installed, it presses the fixing plate 8 from the top to prevent the fixing plate 8 and the frame 5 from shaking in the vertical direction during the operation of the vibrating screen 1.

[0034] In order to facilitate the control of the clamping block 13, a lever 15 is fixedly connected to the side of the clamping block 13, and one end of the lever 15 extends out of the clamping plate 11. And a long circular hole (not marked in the figure) is provided at the corresponding position of the clamping plate 11. The long circular hole communicates with the installation hole 12. When the clamping block 13 moves, the lever 15 moves in the long circular hole. Conversely, the movement of the clamping block 13 can be controlled by the lever 15, which is convenient for removing the clamping plate 11.

[0035] In the embodiment of the present application, the implementation process and principle of a feeding device for guiding and screening round granular materials are as follows:

[0036] (1): Before installation, first remove the clamping plate 11, install the fixing plate 8 in the installation port 10, and make the frame 5 part of the movable screen 3 be clamped in the groove formed by the limit baffle 16 and the wall of the hopper 2. Then rotate the fixing shaft 9 so that one end thereof closely fits the outer wall of the hopper 2. Secondly, fix the clamping plate 11 in the installation port 10. Finally, move the fixing pin 19 so that one end of the fixing pin 19 enters the groove formed by the limit baffle 16 and the wall of the hopper 2, that is, the fixing pin 19 abuts against the top of the frame 5.

[0037] Since the fixing shaft 9 cooperates with the frame 5 to clamp and fix the hopper 2, the clamping plate 11 can press the fixing plate 8 in the installation port 10 from above. In addition, the frame 5 is clamped in the groove formed by the limit baffle 16 and the wall of the hopper 2, and is fixed by the fixing pin 19 above. Therefore, the movable screen 3 can be firmly fixed in the hopper 2.

[0038] (2): During use, the vibrating screen 1 equipped with the movable screen 3 is arranged at the front end of the color sorter as a feeding device. When the vibrating screen 1 is started, the material will first fall onto the upper screen composed of several round rods 4. At this time, the round-particle-like materials will stay at the positions between adjacent two round rods 4 and move orderly along the axial direction of the round rods 4 for feeding. The materials with small particles fall into the hopper 2 and are removed through the sieve holes pre-opened on the hopper 2. This device effectively ensures the feeding stability of the large-particle round-like materials, and at the same time achieves the effect of screening out the pulverized foam materials, improving the sorting accuracy of the color sorter. Moreover, multiple groups of movable screens 3 can be set, and the gaps between adjacent two round rods 4 in each group are different. According to the use requirements, different movable screens 3 can be replaced, improving the practicability. The above-mentioned embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A feeding device for guiding and screening round granular materials, comprising a vibrating screen, wherein a hopper is installed on the vibrating screen, and it is characterized in that, A detachable movable screen is installed in the hopper. The movable screen includes round bars and a frame. The round bars are arranged in the frame. One end of the frame is also provided with a fixing mechanism for fixing the frame and the hopper.

2. The feeding device for guiding and screening round granular materials as described in claim 1, wherein An installation opening is formed on one side of the hopper, and a clamping plate is clamped on the installation opening.

3. The feeding device for guiding and screening round granular materials according to claim 2, characterized in that, Installation holes are formed on both sides of the clamping plate. A clamping block is movably installed in the installation holes. One end of the clamping block extends out of the installation holes, and corresponding holes are formed at the position of the installation even side wall. A spring is also connected between the clamping block and the installation holes. One side of the clamping block is fixedly connected with a lever. One end of the lever extends out of the clamping plate, and a long circular hole communicating with the installation holes is formed at the corresponding position of the clamping plate.

4. The feeding device for guiding and screening round granular materials according to claim 2, characterized in that, The fixing mechanism includes a fixing plate and a fixing shaft. The fixing mechanism is arranged on the outer side of the hopper. The fixing plate passes through the installation opening and is fixedly connected with the frame. The fixing plate is threadedly connected with the fixing shaft.

5. The feeding device for guiding and screening round granular materials according to claim 1, characterized in that, A cross plate is also fixedly connected in the frame, and the round bars are fixedly connected to the cross plate.

6. The feeding device for guiding and screening round granular materials according to claim 1, characterized in that, A limiting baffle is fixedly connected to the inner side of the hopper. The frame is clamped between the limiting baffle and the side wall of the hopper. At the same time, a rubber pad is laid at the bottom of the frame.

7. The feeding device for guiding and screening round granular materials according to claim 6, characterized in that, Fixing holes are formed on the side wall of the limiting baffle. A fixing pin is installed in the fixing holes. At the same time, a fixing block is also fixedly connected to the fixing pin. Fixing sliding grooves corresponding to the fixing block are formed on the inner wall of the fixing holes.

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