Dust recovery device for wood board engraving processing

Abstract

The utility model relates to a dust recovery device for wood board carving processing, including annular recovery cover, the inside annular communication of annular recovery cover has a plurality of dust extraction branch pipes, annular recovery cover has the flow -through pipe through the hose communication, the one end of flow -through pipe is away from annular recovery cover and is connected with the filter box through the connecting pipe, the inside of flow -through pipe is installed with cyclone separator, fine metal mesh and fan in turn from annular recovery cover to filter box direction, the inlet of cyclone separator is linked with the hose communication, the outlet of cyclone separator and fan air inlet all are aligned fine metal mesh, the air outlet of fan is linked with the connecting pipe communication, the inside of filter box is equipped with filter piece. Through the utility model can effectively collect the dust produced in the wood board carving processing process, improve dust collection efficiency. Cyclone separator can separate out the larger particle impurities first, avoid its into the fan, reduce the abrasion of fan blade, prolong the service life of fan and the overall performance of device.

Description

Technical Field

[0001] This utility model relates to the field of carving and processing technology, and in particular to a dust recovery device for wood carving and processing. Background Technology

[0002] The wood carving process generates a large amount of dust, which not only pollutes the working environment but may also harm the health of operators, such as causing respiratory diseases. Furthermore, the dust dispersion can affect the precision and quality of the carving process; for example, dust adhering to carving tools may lead to accelerated tool wear, affecting the smoothness of the carved lines.

[0003] Currently, there are various dust removal devices for wood carving on the market, most of which use fans to suck up dust. However, in existing devices, larger particles of impurities enter the fan along with the dust through the suction pipe, easily impacting the fan blades, causing wear or even damage to the blades, affecting the fan's lifespan and the overall performance of the device. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a dust recovery device for wood carving. The specific technical solution is as follows:

[0005] A dust collection device for wood carving includes an annular collection sleeve with multiple suction branch pipes connected in a ring inside. The annular collection sleeve is connected to a flow pipe via a flexible hose. The end of the flow pipe away from the annular collection sleeve is connected to a filter box via a connecting pipe. Inside the flow pipe, a cyclone separator, a fine metal mesh, and a fan are installed sequentially from the annular collection sleeve toward the filter box. The inlet of the cyclone separator is connected to the flexible hose, and the outlet of the cyclone separator and the air inlet of the fan are both aligned with the fine metal mesh. The air outlet of the fan is connected to the connecting pipe. The filter box contains filter elements.

[0006] As an improvement to the above technical solution, the filter element includes a primary filter screen, a secondary filter cotton, and a filter, which are arranged sequentially inside the filter box in the direction of air outlet of the connecting pipe.

[0007] As an improvement to the above technical solution, the fine metal mesh is inserted into the interior of the flow tube from the top to the bottom, and a first sealing door is installed on the side of the flow tube.

[0008] As an improvement to the above technical solution, the primary filter screen and the intermediate filter cotton are inserted into the interior of the filter box from the top side to the bottom side, and a second sealing door is installed on the side of the filter box.

[0009] As an improvement to the above technical solution, a closed cover is also included, the bottom end of which can be threaded to the top end of the annular recycling sleeve, the top of which has a handle, and both the closed cover and the annular recycling sleeve are made of transparent material.

[0010] The beneficial effects of this utility model are:

[0011] By incorporating a ring-shaped recovery sleeve and multiple suction branches, dust generated during wood carving can be effectively collected, improving dust collection efficiency. The cyclone separator first separates larger particles, preventing them from entering the fan, reducing fan blade wear, extending fan life, and improving overall system performance. Multiple filtration processes—a fine metal mesh, a primary filter, a secondary filter, and a secondary filter—effectively purify dust, reducing environmental pollution while ensuring clean exhaust air. The enclosed hood further enhances dust collection, and the transparent material facilitates observation of the carving process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 .

[0015] Reference numerals: 1. Annular recovery sleeve; 100. Suction branch pipe; 2. Enclosed cover; 21. Handle; 3. Hose; 4. Flow pipe; 5. Fine metal mesh; 6. Connecting pipe; 7. Filter box; 8. Primary filter screen; 9. Secondary filter cotton; 10. Cyclone separator; 11. Fan; 12. Filter. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Example

[0018] For dust collection devices used in wood carving, please refer to [link / reference]. Figures 1-3 To address the shortcomings of existing technologies, such as low dust collection efficiency, equipment fragility, and incomplete filtration, this paper provides a dust collection device for wood carving that integrates multi-stage dust separation, equipment protection, and convenient maintenance, achieving a balance between efficient dust removal, equipment protection, and ease of operation.

[0019] This device employs a four-stage treatment process: dust collection, pre-separation, fine filtration, and clean discharge. Specifically, it includes a ring-shaped recovery sleeve 1, which features a circular or polygonal annular cavity design. The inner wall is evenly distributed with 6-8 suction pipes 100; the exact number can be adjusted according to the size of the engraving machine. The pipe ends face the engraving work area, forming a 360° surround suction zone. It can be made of transparent acrylic or polycarbonate (PC) for easy observation of the engraving process. Its bottom end can be fixed to the engraving machine's worktable via a flange or threaded interface, and the top is equipped with a sealing cover 2 for mounting.

[0020] Specifically, the enclosure 2 is an inverted truncated cone-shaped transparent enclosure with external threads machined on the outer side of the bottom end, which are screwed into the internal thread interface at the top of the annular recycling sleeve; a U-shaped handle 21 is provided in the center of the top for easy disassembly and assembly.

[0021] It forms a semi-enclosed dust collection space with the ring-shaped recycling sleeve, improving dust capture efficiency and reducing dispersion.

[0022] Specifically, hose 3 is made of wear-resistant silicone or PVC material, with an inner diameter of φ50-φ80mm, and the length can be adjusted from 1 to 3 meters according to the distance between the machine tool and the filtration equipment. One end of the hose is fastened to the air outlet on the side of the annular recovery sleeve with a clamp, and the other end is inserted into the front end interface of the flow tube 4 to form a flexible connection to buffer vibration.

[0023] Specifically, the flow pipe 4 is a cylindrical metal pipe, preferably made of stainless steel. Inside, along the airflow direction, from the annular recovery sleeve to the filter box, a cyclone separator 10, a fine metal mesh 5, and a fan 11 are installed in sequence.

[0024] The cyclone separator inlet connects to the hose outlet via a flange, with the outlet facing the fine metal mesh. The fan inlet faces downstream of the fine metal mesh, and the outlet connects to connecting pipe 6 via a flange. A rectangular inspection port is provided on the side of the pipe, where a first sealing door (not shown) is installed. It can be sealed with a rubber sealing ring and bolts, facilitating disassembly and cleaning of the fine metal mesh.

[0025] Specifically, the filter box 7 is a rectangular metal box, with the side connected to the connecting pipe 6 via a flange. Inside, along the airflow direction, a primary filter screen 8, a secondary filter cotton 9, and a filter 12 are arranged in sequence.

[0026] The primary filter screen 8 has a metal mesh aperture of 2-5mm. It is inserted into the housing through the top sliding groove and has a limiting buckle at the bottom.

[0027] Intermediate filter cotton 9: Polyester fiber or glass fiber filter media with a filtration accuracy of 5-10μm, also installed via a top sliding groove, with a 50mm buffer space reserved between it and the primary screen.

[0028] Filter 12: A HEPA high-efficiency filter is installed at the end and fixed to the air outlet of the housing via the bottom flange.

[0029] The side of the enclosure has a second sealed door, which uses a quick-release buckle and sealing strip structure to facilitate regular replacement of the filter cotton and cleaning of accumulated dust.

[0030] Specifically, the cyclone separator 10 uses centrifugal force to separate large particles of impurities ≥100μm, such as wood chips and fragments, from the airflow. The separated impurities are periodically cleaned through the bottom dust discharge port (not shown). Its axis is coaxial with the flow pipe, the inlet pipe diameter matches the flexible hose, and the outlet end is designed with a reduced diameter to increase the airflow velocity and ensure effective sedimentation of impurities.

[0031] Fan 11 uses a centrifugal fan with a wind pressure ≥2000Pa and an air volume recommended to be 1000-1500m³ / h based on the power of the engraving machine. 3 / h. A fine metal mesh with a mesh size of 1-2mm is installed in front of the air inlet to prevent large particles from passing through the mesh and impacting the impeller; the fan can be fixed to the inner wall of the flow pipe through a shock-absorbing bracket to reduce vibration transmission.

[0032] Specifically, during installation, the annular recovery sleeve can be connected to the worktable of the engraving machine through the bottom flange, ensuring that the dust suction pipe port is aligned directly above the tool's movement trajectory, at a vertical height of 100-150mm from the processing surface.

[0033] Rotate the closure to ensure its bottom thread engages tightly with the top interface of the recycling sleeve, and check that the handle is securely installed.

[0034] Insert one end of the hose into the air outlet of the recovery sleeve and secure it with a hose clamp; insert the other end into the front end of the flow tube, keeping the tube straight and avoiding sharp bends that could affect airflow.

[0035] The two ends of the connecting pipe are respectively connected to the outlet flange of the flow pipe and the inlet flange of the filter box, and the bolts are tightened evenly to ensure a seal.

[0036] Workflow: First, start the engraving machine and fan to create a negative pressure environment inside the enclosed enclosure. The dust generated during engraving is sucked into the annular recovery sleeve by the suction of the dust collection branch pipe. Larger particles settle to the bottom of the recovery sleeve due to gravity, while fine dust enters the hose with the airflow.

[0037] After entering the flow duct, the dust-laden airflow first passes through a cyclone separator: large particles ≥100μm are thrown against the separator wall by centrifugal force and fall into the dust collection hopper along the bottom of the cone, requiring regular cleaning; smaller particles 50-100μm are carried by the airflow through the separator outlet, where they collide with the fine metal mesh in front and are intercepted, achieving secondary filtration. The pre-separated airflow enters the filter box, where the primary filter screen intercepts remaining large particles such as sawdust and debris, the intermediate filter cotton adsorbs dust particles of 5-10μm, and the final HEPA filter captures micro-dust larger than 0.3μm, finally discharging clean air.

[0038] When a significant amount of dust is observed at the bottom of the recycling bin, open the bottom dust discharge valve for cleaning. It is recommended to open the first sealing door weekly and remove the fine metal mesh for tapping and cleaning. If the intermediate filter cotton becomes clogged, it can be determined by observing the differential pressure gauge or a decrease in airflow. Remove and replace it through the slide at the top of the filter box. The lifespan of a HEPA filter is approximately 6-12 months, depending on the dust concentration. It can be removed and replaced through the second sealing door.

[0039] This device is suitable for CNC engraving machines, laser engraving machines, and manual engraving tables, and is especially suitable for processing materials such as MDF, solid wood, and bamboo, which are prone to generating high concentrations of dust. In a practical application at a furniture factory, compared with traditional single-stage dust collection devices, this device reduced the dust concentration in the workshop from 15mg / m³. 3 Reduced to 0.8 mg / m³ 3 The frequency of fan failures has decreased from twice a month to once a year, significantly improving the safety of the production environment and the reliability of equipment.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust recovery device for wood carving, characterized in that, The system includes an annular recovery sleeve (1), which has multiple suction branch pipes (100) connected in an annular manner inside. The annular recovery sleeve (1) is connected to a flow pipe (4) through a hose (3). The end of the flow pipe (4) away from the annular recovery sleeve (1) is connected to a filter box (7) through a connecting pipe (6). Inside the flow pipe (4), a cyclone separator (10), a fine metal mesh (5), and a fan (11) are installed sequentially from the annular recovery sleeve (1) towards the filter box (7). The inlet of the cyclone separator (10) is connected to the hose (3). The outlet of the cyclone separator (10) and the air inlet of the fan (11) are both aligned with the fine metal mesh (5). The air outlet of the fan (11) is connected to the connecting pipe (6). The filter box (7) is equipped with a filter element inside.

2. The dust recovery device for wood carving processing according to claim 1, characterized in that: The filter element includes a primary filter screen (8), a secondary filter cotton (9), and a filter (12), which are arranged sequentially inside the filter box (7) towards the air outlet direction of the connecting pipe (6).

3. The dust recovery device for wood carving processing according to claim 2, characterized in that: The fine metal mesh (5) is inserted into the interior of the flow tube (4) from the top to the bottom, and a first sealing door is installed on the side of the flow tube (4).

4. The dust recovery device for wood carving processing according to claim 3, characterized in that: The primary filter screen (8) and the intermediate filter cotton (9) are inserted into the interior of the filter box (7) from the top to the bottom. The filter box (7) is equipped with a second sealing door on its side.

5. The dust recovery device for wood carving processing according to claim 4, characterized in that: It also includes a sealing cover (2), the bottom end of which can be threaded to the top end of the annular recycling sleeve (1), the top of which has a handle (21), and both the sealing cover (2) and the annular recycling sleeve (1) are made of transparent material.

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