Multi-stage negative pressure scrap separation equipment
By designing a multi-stage negative pressure debris separation device, and utilizing the combination of a negative pressure fan and a moving plate, the problem of dust backflow was solved, achieving more efficient debris adsorption and environmental cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-14
AI Technical Summary
When the existing multi-stage negative pressure debris separation device stops working abnormally, the dust inside the pipeline can easily flow back to the top of the conveyor belt, leading to increased pollution in the working environment.
Design a multi-stage negative pressure debris separation device, comprising a box, a negative pressure fan, baffles, connecting pipes, a shell, and a movable plate. The negative pressure fan draws in air, and the movable plate moves between the limiting columns to seal the debris channel. Gravity compression keeps the debris sealed, reducing dust backflow.
It effectively seals off debris channels, reduces dust backflow, improves the debris adsorption effect on the cardboard surface, reduces dust above the conveyor belt, and reduces environmental pollution.
Smart Images
Figure CN224114843U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adsorption device technology, and in particular to a multi-stage negative pressure debris separation equipment. Background Technology
[0002] Generally, cardboard with high rigidity is prone to generating debris during processing. Usually, only the debris scattered on the workbench can be collected. However, after the cardboard is cut, some debris and dust remain at the cut edges. As the cardboard is transferred via a conveyor belt, the dust can cause dust pollution to the surrounding working environment. Therefore, a multi-stage negative pressure debris separation device is installed above the conveyor belt to absorb the debris and dust on the edges of the cardboard. However, if the multi-stage negative pressure debris separation device stops working abnormally, some of the dust inside the device's pipes can easily flow back to the top of the conveyor belt, making the dust pollution to the surrounding working environment even more serious. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing multi-stage negative pressure debris separation devices, where dust inside the pipes of the device easily flows back to the top of the conveyor belt after the device stops working abnormally, causing more serious pollution to the surrounding working environment. Therefore, this invention proposes a multi-stage negative pressure debris separation device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] Design a multi-stage negative pressure debris separation device, including a box body, a negative pressure fan installed on one side of the top of the box body, several baffles installed inside the box body, a connecting pipe installed on one side of the box body, one end of the connecting pipe connected to the bottom of one side of the box body, and the other end of the connecting pipe connected to a shell, a frame installed at the bottom of the shell, several limiting posts installed on the top edge of the frame, a movable plate slidably placed between the limiting posts, and a connecting mechanism installed between the frame and the shell.
[0006] Preferably, one end of each of the baffles is arranged crosswise, and the baffles are all inclined, with one end of the connecting pipe located below one of the baffles.
[0007] Preferably, the box body is provided with a sealing plate on one side, and one side of the sealing plate is in contact with one side of several baffles.
[0008] Preferably, there are two connecting mechanisms, which are arranged symmetrically around the frame.
[0009] Preferably, the connecting mechanism includes a sleeve installed on one side of the frame, a movable rod slidably disposed on the sleeve, an elastic element disposed at one end of the movable rod, and one end of the elastic element abutting against the sleeve.
[0010] Preferably, one end of each of the two moving rods is threaded with a stop.
[0011] Preferably, a support frame is provided on one side of the top of the box, and the connecting pipe is held by the support frame.
[0012] Preferably, a filter screen is provided on one side of the top of the housing, and the vertical projection of the negative pressure fan covers the filter screen.
[0013] The multi-stage negative pressure debris separation equipment proposed in this utility model has the following advantages: When the multi-stage negative pressure debris separation equipment adsorbs debris through the connecting pipe, the negative pressure inside the shell will adsorb the moving plate, causing the moving plate to move between several limiting posts, moving the moving plate away from the frame, thereby allowing debris to enter the gap between the moving plate and the frame. After the device stops working, the moving plate is pressed against the frame due to gravity, preventing the debris remaining in the shell from falling onto the cardboard, thus improving the adsorption effect on the debris on the cardboard surface. Moreover, the dust above the conveyor belt will be greatly reduced, thereby reducing the pollution of the surrounding environment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a multi-stage negative pressure debris separation device proposed in this utility model during use.
[0015] Figure 2 This is a partial structural schematic diagram of a multi-stage negative pressure debris separation device proposed in this utility model.
[0016] Figure 3 A front view of a cross-sectional view of a multi-stage negative pressure debris separation device proposed in this utility model. Figure 1 .
[0017] Figure 4 A front view of a cross-sectional view of a multi-stage negative pressure debris separation device proposed in this utility model. Figure 2 .
[0018] Figure 5 for Figure 4 A magnified view of a portion at point A.
[0019] In the diagram: 1. Box body; 2. Baffle; 3. Connecting pipe; 4. Shell; 5. Frame; 6. Limiting post; 7. Moving plate; 8. Sleeve; 9. Moving rod; 10. Elastic element; 11. Stop block; 12. Support frame; 13. Filter screen; 14. Negative pressure fan; 15. Sealing plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Example 1: Refer to Figure 1-5 A multi-stage negative pressure debris separation device includes a housing 1. A negative pressure fan 14 is installed on one side of the top of the housing 1. Several baffles 2 are installed inside the housing 1. Each baffle 2 has a large number of perforations, so that the baffles 2 are in a breathable state. A connecting pipe 3 is connected to one side of the housing 1. One end of the connecting pipe 3 is connected to the bottom of one side of the housing 1, and the other end of the connecting pipe 3 is connected to a shell 4. A frame 5 is installed at the bottom of the shell 4. Several limiting posts 6 are fixedly installed on the top edge of the frame 5. A movable plate 7 is slidably placed between the limiting posts 6. A connecting mechanism is provided between the frame 5 and the shell 4. There are two connecting mechanisms, which are symmetrically arranged around the frame 5. The connecting mechanism includes a sleeve 8 installed on one side of the frame 5. A movable rod 9 is slidably installed on the sleeve 8. When one of them is working, one end of the extension rod 9 passes through the frame 5 and extends into the shell 4. An elastic element 10 is provided at one end of the movable rod 9. One end of the elastic element 10 abuts against the sleeve 8. A stop block 11 is threadedly connected to one end of both movable rods 9.
[0022] When the negative pressure fan 14 is started, it draws air from the housing 1, which in turn draws air from the connecting pipe 3. As the connecting pipe 3 adsorbs debris, the negative pressure inside the housing 4 adsorbs the moving plate 7, causing it to move between several limiting posts 6. This moves the moving plate 7 away from the frame 5, allowing debris to enter the gap between the moving plate 7 and the frame 6. After the negative pressure fan 14 stops working, the moving plate 7 is pressed against the frame 6 by gravity, preventing the debris remaining in the housing 4 from falling onto the cardboard. This improves the adsorption effect on the cardboard surface and significantly reduces dust above the conveyor belt, thus reducing environmental pollution.
[0023] After pulling the two stops 11, the two stops 11 will bring the two moving rods 9 into one end of the two sleeves 8, which will compress the two elastic elements 10, so that one end of the two moving rods 9 will be away from the housing 4, thereby allowing the frame 5 to be disassembled, and the moving plate 7 on the top of the frame 5 can also be easily removed for maintenance, thus reducing the difficulty of later maintenance of the device.
[0024] Example 2: An optimization based on Example 1, with reference to... Figure 1-5Several baffles 2 are arranged crosswise at one end and are inclined. One end of the connecting pipe 3 is located below one of the baffles 2. A sealing plate 15 is provided on one side of the box body 1. One side of the sealing plate 15 is in contact with one side of several baffles 2. A support frame 12 is fixedly installed on one side of the top of the box body 1. The connecting pipe 3 is clamped by the support frame 12. A filter screen 13 is provided on one side of the top of the box body 1. The vertical projection of the negative pressure fan 14 covers the filter screen 13.
[0025] Combined with appendix Figure 3-4 By staggering the arrangement of several baffles 2, the debris entering the housing 1 will pass through the air holes on the surface of several baffles 2 in sequence. After the surface of several baffles 2 is blocked by too much debris, the debris can finally reach the filter screen 13 at the bottom of the negative pressure fan 14. This reduces the chance of the filter screen 13 becoming blocked, thus making it less likely for the power of the negative pressure fan 14 to decrease, thereby reducing the number of maintenance times for the housing 1.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-stage negative pressure debris separation device, comprising a housing (1), characterized in that, A negative pressure fan (14) is provided on one side of the top of the box (1). Several baffles (2) are provided inside the box (1). A connecting pipe (3) is provided on one side of the box (1). One end of the connecting pipe (3) is connected to the bottom of one side of the box (1). One end of the connecting pipe (3) is connected to the shell (4). A frame (5) is provided at the bottom of the shell (4). Several limiting posts (6) are provided on the top edge of the frame (5). A movable plate (7) is slidably placed between the limiting posts (6). A connecting mechanism is provided between the frame (5) and the shell (4).
2. The multi-stage negative pressure debris separation equipment according to claim 1, characterized in that, One end of each of the baffles (2) is arranged crosswise, and each of the baffles (2) is arranged at an angle. One end of the connecting pipe (3) is located below one of the baffles (2).
3. The multi-stage negative pressure debris separation equipment according to any one of claims 1-2, characterized in that, A sealing plate (15) is provided on one side of the box body (1), and one side of the sealing plate (15) is in contact with one side of several baffles (2).
4. The multi-stage negative pressure debris separation equipment according to claim 1, characterized in that, The connecting mechanism is configured as two, and the two connecting mechanisms are symmetrically arranged around the frame (5).
5. The multi-stage negative pressure debris separation equipment according to claim 4, characterized in that, The connecting mechanism includes a sleeve (8) installed on one side of the frame (5), a movable rod (9) is slidably arranged on the sleeve (8), an elastic element (10) is provided at one end of the movable rod (9), and one end of the elastic element (10) abuts against the sleeve (8).
6. The multi-stage negative pressure debris separation equipment according to claim 5, characterized in that, Both of the moving rods (9) have a stop (11) threaded to one end.
7. The multi-stage negative pressure debris separation equipment according to claim 1, characterized in that, A support frame (12) is provided on one side of the top of the box (1), and the connecting pipe (3) is held by the support frame (12).
8. The multi-stage negative pressure debris separation equipment according to claim 1, characterized in that, A filter screen (13) is provided on one side of the top of the housing (1), and the vertical projection of the negative pressure fan (14) covers the filter screen (13).