Exhaust structure of dust removal polishing machine

Abstract

The utility model belongs to mechanical engineering technical field, especially point to a dust removal polishing machine's exhaust structure, including machine body, and be located in the fan and the exhaust hood that mutually intercommunication in machine body, still include: cover body, be located in the exhaust hood, the flow guide is located in the cover body inside, and with the inner wall of cover body forms airflow channel, a plurality of fixed parts are arranged in the flow guide and cover body between the circumference, be used for with flow guide can be detachably fixed on cover body, wherein, fixed part includes with cover body fixed connection's fixed end and with flow guide detachable connection's quick -release end. The utility model discloses through above-mentioned technical scheme can obtain a kind of exhaust structure that can optimize airflow organization and facilitate dismounting maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical engineering technology, and specifically refers to the exhaust structure of a dust removal and polishing machine. Background Technology

[0002] Dust removal polishing machines are widely used for deburring and polishing the surface of metal workpieces. They use an exhaust system to remove dust generated during the polishing process in a timely manner to ensure a clean working environment.

[0003] Existing exhaust structures typically consist of a single, funnel-shaped exhaust hood directly connected to the fan. The hood's interior is a smooth, hollow cavity, lacking airflow guidance and rectification capabilities. When the fan is running, airflow within the hood easily forms eddies or turbulence, causing some dust-laden gas to escape into the working environment instead of entering the fan via the shortest path. Furthermore, exhaust hoods are mostly fixed designs, making internal cleaning impossible. Over time, severe dust accumulation on the inner walls further impacts exhaust efficiency. Therefore, there is an urgent need for an exhaust structure that optimizes airflow organization and is easy to disassemble and maintain. Utility Model Content

[0004] This invention optimizes airflow organization by setting up an air duct and a flow guide to form an airflow channel inside the exhaust hood, and uses fasteners to make the flow guide detachable and fixed, thereby solving the problems mentioned in the background art.

[0005] The purpose of this utility model is achieved as follows: a dust removal and polishing machine exhaust structure includes a body, a fan and an exhaust hood disposed within the body and interconnected therewith, and further includes: The hood is located inside the exhaust hood; An air guide is disposed inside the cover and forms an airflow channel between it and the inner wall of the cover; Multiple fasteners are arranged circumferentially between the flow guide and the cover, for detachably fixing the flow guide to the cover; The fastener includes a fixed end that is fixedly connected to the cover and a quick-release end that is detachably connected to the flow guide.

[0006] The present invention is further configured such that the quick-release end includes a U-shaped elastic buckle segment, and the flow guide is provided with a corresponding slot that cooperates with the elastic buckle segment.

[0007] The present invention is further configured such that an elastic stop bar is provided at the bottom of the quick-release end, and the elastic stop bar abuts against the bottom surface of the flow guide after the quick-release end is connected to the flow guide.

[0008] The present invention is further configured such that the elastic stop bar and the elastic buckle segment are integrally formed.

[0009] The present invention is further configured such that the fixed end is a threaded segment that is threadedly connected to the cover body.

[0010] The present invention is further configured such that a main air duct is provided in the middle of the air guide, and the airflow channel includes the main air duct and a lateral gap formed between the side edge of the air guide and the inner wall of the cover.

[0011] The present invention is further configured such that the cover body and the inner wall of the exhaust hood are integrally formed.

[0012] The present invention is further provided that a filter screen is installed at the bottom of the exhaust hood.

[0013] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. By forming an airflow channel inside the exhaust hood through the cover and the guide vane, the airflow is guided to flow into the fan in an orderly manner, reducing eddies and turbulence, and improving exhaust efficiency and dust removal effect.

[0014] 2. The quick-release end of the fastener allows for a detachable connection with the flow guide, and the engaging structure of the elastic buckle section and the slot facilitates quick assembly and disassembly of the flow guide, improving maintenance convenience.

[0015] 3. The elastic baffle at the bottom of the quick-release end abuts against the bottom surface of the guide after connection, effectively preventing the guide from coming off under vibration conditions and improving connection reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3 for Figure 2 Top view; Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0017] The attached diagram is labeled as follows: 1. Body; 2. Fan; 3. Exhaust hood; 4. Cover; 5. Flow guide; 6. Airflow channel; 7. Fixing component; 70. Fixed end; 71. Quick release end; 8. Slot; 9. Elastic baffle; 10. Main air duct; 11. Lateral clearance; 12. Filter screen. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-4 : Example 1:

[0019] This embodiment provides an exhaust structure for a dust removal and polishing machine, including a body 1, a fan 2 and an exhaust hood 3 disposed within the body 1 and interconnected therewith, and further including: Cover 4 is located inside the exhaust hood 3; The air guide 5 is disposed inside the cover 4 and forms an airflow channel 6 between it and the inner wall of the cover 4; Multiple fasteners 7 are arranged circumferentially between the flow guide 5 and the cover 4 for detachably fixing the flow guide 5 to the cover 4; The fastener 7 includes a fixed end 70 that is fixedly connected to the cover 4, and a quick-release end 71 that is detachably connected to the flow guide 5.

[0020] The exhaust structure is installed at the exhaust hood 3 of the dust removal and polishing machine. The exhaust hood 3 is generally shell-shaped, with a filter screen 12 installed at its bottom to intercept large particles of waste generated during the polishing process. Inside the exhaust hood 3, there is a cover body 4, which is integrally formed with the inner wall of the exhaust hood 3, constituting an independent chamber inside the exhaust hood 3. The cover body 4 is roughly cylindrical in shape, and its top is connected to the air inlet pipe of the fan 2 to exhaust the airflow.

[0021] The air guide 5 is disposed inside the housing 4. The air guide 5 has a disc-shaped or plate-shaped structure, with its edge maintaining a certain distance from the inner wall of the housing 4, thus forming a gap for airflow. A main air duct 10 is formed in the center of the air guide 5, which is a circular or rectangular through-hole penetrating the central area of ​​the air guide 5. Therefore, the airflow channel 6 formed between the air guide 5 and the inner wall of the housing 4 consists of two parts: one part is the main air duct 10 formed by the through-hole in the center of the air guide 5, and the other part is the lateral gap 11 formed between the side edge of the air guide 5 and the inner wall of the housing 4. The main air duct 10 and the lateral gap 11 are interconnected, serving together as a channel for airflow to enter the interior of the housing 4. The side of the air guide 5 facing the interior of the housing 4 has an inclined surface, which gradually slopes from the center of the air guide 5 towards the edge, guiding the airflow along this surface towards the interior of the housing 4.

[0022] The diffuser 5 is detachably mounted to the housing 4 via multiple fasteners 7. These fasteners 7 are arranged at equal angular intervals along the circumference of the diffuser 5, and there are three or four fasteners in total. Each fastener 7 is an independent connecting component, made of a material with a certain degree of elasticity, such as plastic or spring steel. The fastener 7 includes an upper fixed end 70 and a lower quick-release end 71, and the fixed end 70 and the quick-release end 71 are integrally formed.

[0023] The fixed end 70 is a threaded section with external threads on its outer surface. A corresponding threaded hole is provided on the cover 4. The fixed end 70 is screwed into the threaded hole of the cover 4, thus achieving a fixed connection between the fixing member 7 and the cover 4. This threaded connection method allows the fixing member 7 to be firmly anchored to the cover 4, and the screwing depth can be adjusted as needed.

[0024] The quick-release end 71 is used to connect with the flow guide 5. The main body of the quick-release end 71 has a "U" shape, forming an elastic snap-fit ​​section. The "U" shape has two opposing elastic arms, forming a snap-fit ​​space between the two elastic arms. The flow guide 5 has a slot 8 corresponding to the position of each fixing member 7. The shape of the slot 8 matches the "U" shape of the elastic snap-fit ​​section and is used to accommodate the elastic snap-fit ​​section. During installation, the flow guide 5 is pushed towards the cover 4. The two elastic arms of the elastic snap-fit ​​section are squeezed by the inner wall of the slot 8 and undergo elastic deformation. After entering the slot 8, they return to their original shape, so that the elastic snap-fit ​​section is engaged in the slot 8, thereby realizing the detachable connection between the quick-release end 71 and the flow guide 5. During disassembly, the flow guide 5 is pulled down, and the two elastic arms of the elastic snap-fit ​​section deform again and disengage from the slot 8. An elastic stop strip 9 is provided at the bottom of the quick-release end 71. The elastic stop strip 9 is integrally formed with the quick-release end 71. The elastic stop 9 is located at the bottom of the "U"-shaped structure and extends to both sides to form an outward-opening shape. After the quick-release end 71 and the guide 5 are engaged with the slot 8 via the elastic snap section, the elastic stop 9 passes through the slot 8 and extends below the bottom surface of the guide 5. Then, the two sides of the elastic stop 9 spring open and abut against the bottom surface of the guide 5. This elastic stop 9 forms a backstop structure in the vertical direction. When the polishing machine vibrates during operation, the elastic stop 9 continuously abuts against the bottom of the guide 5 to prevent the guide 5 from falling off due to vibration.

[0025] Under normal operating conditions, the elastic baffle 9 abuts against the bottom surface of the guide vane 5, maintaining a relatively fixed position between the guide vane 5 and the fixing component 7. During operation, the fan 2 starts, generating negative pressure inside the exhaust hood 3. Dust-laden gas generated during the grinding process enters the exhaust hood 3 under this negative pressure. The airflow first passes through the filter 12 at the bottom of the exhaust hood 3 and enters between the hood body 4 and the guide vane 5. Part of the airflow enters the interior of the hood body 4 through the through-hole in the middle of the guide vane 5, while another part enters the interior of the hood body 4 along the lateral gap 11 between the side edge of the guide vane 5 and the inner wall of the hood body 4. Guided by the inclined surface of the guide vane 5, the airflow entering the hood body 4 flows in an orderly manner towards the top of the hood body 4, and finally enters the fan 2 through the air inlet pipe and is discharged. When it is necessary to clean the dust inside the exhaust structure, the operator pulls down the guide vane 5. The elastic baffle 9 is stretched and deformed, and the elastic clip section disengages from the slot 8. The guide vane 5 can then be removed from the cover 4, and the inside of the cover 4 and the surface of the guide vane 5 can be cleaned. After cleaning, the guide vane 5 is aligned with the cover 4 and pushed upwards. The elastic clip section re-engages into the slot 8, and the elastic baffle 9 rests against the bottom surface of the guide vane 5 again, completing the installation.

[0026] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. An exhaust structure for a dust removal and polishing machine, comprising a body (1), and a fan (2) and an exhaust hood (3) disposed within the body (1) and interconnected therewith, characterized in that, Also includes: The cover (4) is located inside the exhaust hood (3); A flow guide (5) is provided inside the cover (4) and forms an airflow channel (6) between it and the inner wall of the cover (4). Multiple fasteners (7) are arranged circumferentially between the flow guide (5) and the cover (4) for detachably fixing the flow guide (5) to the cover (4); The fastener (7) includes a fixed end (70) fixedly connected to the cover (4) and a quick-release end (71) detachably connected to the guide (5).

2. The exhaust structure of a dust removal and polishing machine according to claim 1, characterized in that, The quick-release end (71) includes a U-shaped elastic snap-fit ​​section, and the guide (5) is provided with a corresponding slot (8) that cooperates with the elastic snap-fit ​​section.

3. The exhaust structure of a dust removal and polishing machine according to claim 2, characterized in that, The bottom of the quick-release end (71) is provided with an elastic baffle (9), which abuts against the bottom surface of the flow guide (5) after the quick-release end (71) is connected to the flow guide (5).

4. The exhaust structure of a dust removal and polishing machine according to claim 3, characterized in that, The elastic stop bar (9) is integrally formed with the elastic buckle section.

5. The exhaust structure of a dust removal and polishing machine according to claim 1, characterized in that, The fixed end (70) is a threaded section that is threadedly connected to the cover (4).

6. The exhaust structure of a dust removal and polishing machine according to claim 1, characterized in that, The guide (5) has a main air duct (10) in the middle, and the airflow channel (6) includes the main air duct (10) and a lateral gap (11) formed between the side edge of the guide (5) and the inner wall of the cover (4).

7. The exhaust structure of a dust removal and polishing machine according to claim 1, characterized in that, The cover (4) and the inner wall of the exhaust hood (3) are integrally formed.

8. The exhaust structure of a dust removal and polishing machine according to claim 1, characterized in that, A filter screen (12) is installed at the bottom of the exhaust hood (3).

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