Polishing and dust collecting device for 3D printing post-processing

Abstract

The utility model belongs to the technical field of 3D printing, and discloses a 3D printing post-processing polishing and dust collecting device. The 3D printing post-processing polishing dust collection device comprises a machine box, an operation table and a dust collection mechanism, and a containing cavity and an exhaust channel which are communicated with each other are arranged in the machine box; the operation table is used for bearing a to-be-polished part, the operation table covers the opening of the containing cavity, and sieve holes communicating with the containing cavity are formed in the operation table; the dust collection mechanism comprises a dust collection fan and a filter part, the dust collection fan is arranged in the containing cavity, and the filter part is located between the dust collection fan and the operation table. A to-be-polished part is polished on the operation table, and dust and small-size chippings generated in the polishing process enter the containing cavity through the screen holes under the action of gravity and the suction force of the dust suction fan and are adsorbed to the filtering part. And the filter is further arranged in the dust collection fan, fine dust which cannot be filtered by the filtering piece can be further filtered, and therefore it is guaranteed that gas exhausted by the dust collection fan meets the emission requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, and in particular to a 3D printing post-processing, grinding and dust collection device. Background Art

[0002] 3D printing technology is a rapid prototyping additive manufacturing technology that uses the fused deposition method to stack materials layer by layer to construct products. Since 3D printed products have rough surfaces, they usually need to be polished to improve product quality. The polishing process will generate a large amount of dust and debris, which not only pollutes the working environment and affects the polishing operation, but also harms the health of the operator.

[0003] The existing 3D printing post-processing grinding and dust collection device has poor filtering effect, and the exhaust gas still contains dust, which cannot meet the emission standards, and it also requires a waste of manpower and material resources to purify the gas.

[0004] Therefore, it is urgent to propose a 3D printing post-processing grinding and dust collection device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a 3D printing post-processing grinding dust collection device, which can filter the dust and debris generated in the grinding process and discharge the gas that meets the emission standards.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A 3D printing post-processing grinding and dust collection device, comprising:

[0008] A chassis, in which a communicating accommodation cavity and an exhaust passage are arranged;

[0009] An operating table, used for carrying the workpiece to be polished, wherein the operating table cover is arranged at the opening of the accommodating cavity, and a sieve hole communicating with the accommodating cavity is opened on the operating table;

[0010] The dust suction mechanism comprises a dust suction fan and a filter element. The dust suction fan is arranged in the accommodating cavity, and the filter element is located between the dust suction fan and the operating table.

[0011] Furthermore, the filter element includes a plurality of sub-filters which are arranged at an angle and connected in sequence.

[0012] Furthermore, the filter element is detachably installed in the accommodating cavity.

[0013] Furthermore, the axial direction of the air inlet of the exhaust channel is set at an angle with the axial direction of the exhaust port of the exhaust channel, and a guide member is provided in the exhaust channel that can guide the gas from the air inlet to the exhaust port, and the guide member gradually tilts downward towards the direction close to the air inlet.

[0014] Furthermore, the operating platform comprises:

[0015] A fixing portion, disposed on the chassis, and provided with a mounting opening directly facing the opening of the accommodating cavity;

[0016] The movable part is connected to the installation opening, and the sieve hole is opened on the movable part.

[0017] Furthermore, a receiving opening for taking and placing the workpiece to be polished is provided on a side of the chassis away from the exhaust passage, and the table surface of the operating table gradually tilts downward toward the receiving and placing opening.

[0018] Further, the filter element is arranged parallel to the table top of the operating table; and / or

[0019] The air inlet direction of the dust suction fan is perpendicular to the table top of the operating table.

[0020] Furthermore, the angle between the table top of the operating table and the horizontal plane is 5° to 15°.

[0021] Furthermore, an air outlet surface of the dust suction fan is parallel to the table top of the operating table.

[0022] Furthermore, a storage drawer is also provided on the chassis.

[0023] Beneficial effects of the utility model:

[0024] The utility model provides a 3D printing post-processing grinding and dust collection device, comprising a chassis, an operating table and a dust collection mechanism, wherein a communicating accommodation chamber and an exhaust passage are arranged in the chassis; the operating table is used to carry a workpiece to be polished, and the operating table cover is arranged at the opening of the accommodation chamber, and a sieve hole communicating with the accommodation chamber is opened on the operating table; the dust collection mechanism comprises a dust collection fan and a filter element, the dust collection fan is arranged in the accommodation chamber, and the filter element is located between the dust collection fan and the operating table. The workpiece to be polished is polished on the operating table, and the dust and smaller debris generated in the polishing process enter the accommodating chamber through the sieve holes under the action of gravity and the suction of the dust suction fan; the larger debris remains on the operating table and can be collected for recycling and reuse; the dust and debris entering the accommodating chamber are first adsorbed on the filter element, and for the fine dust that cannot be filtered by the filter element, a filter is also provided in the dust suction fan, which can further filter the gas, thereby ensuring that the gas discharged by the dust suction fan meets the emission requirements; the dust suction fan is arranged in a semi-enclosed accommodating chamber, which is conducive to the dust suction fan to create negative pressure, thereby improving the adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the 3D printing post-processing grinding and dust collection device provided by the utility model;

[0026] Figure 2 It is a perspective view of the 3D printing post-processing grinding and dust collection device provided by the utility model.

[0027] In the figure:

[0028] 1. Chassis; 11. Accommodation cavity; 12. Exhaust channel; 121. Air inlet; 122. Exhaust port; 13. Access port; 14. Handle;

[0029] 2. Operating table; 21. Fixed part; 22. Movable part; 221. Screen hole;

[0030] 3. Dust suction mechanism; 31. Dust suction fan; 32. Filter element;

[0031] 4. Flow guide;

[0032] 5. Storage drawers;

[0033] 6. Control mechanism. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] like Figure 1-2As shown, the present embodiment provides a 3D printing post-processing grinding and dust collection device, including a chassis 1, an operating table 2 and a dust collection mechanism 3, wherein the chassis 1 is provided with a connected accommodating chamber 11 and an exhaust passage 12; the operating table 2 is used to carry the workpiece to be polished, and the operating table 2 cover is arranged on the opening of the accommodating chamber 11, and a sieve hole 221 connected to the accommodating chamber 11 is opened on the operating table 2; the dust collection mechanism 3 includes a dust collection fan 31 and a filter 32, the dust collection fan 31 is arranged in the accommodating chamber 11, and the filter 32 is located between the dust collection fan 31 and the operating table 2. The workpiece to be polished is polished on the operating table 2. The dust and small-sized debris generated during the polishing process enter the accommodating chamber 11 through the sieve hole 221 under the action of gravity and the suction force of the dust suction fan 31; the large-sized debris is retained on the operating table 2 and can be collected for recycling and reuse; the dust and debris entering the accommodating chamber 11 are first adsorbed on the filter element 32. For the fine dust that cannot be filtered by the filter element 32, a filter is also provided in the dust suction fan 31, which can further filter the gas, thereby ensuring that the gas discharged by the dust suction fan 31 meets the emission requirements; the dust suction fan 31 is arranged in a semi-enclosed accommodating chamber 11, which is conducive to the dust suction fan 31 to create negative pressure, thereby improving the adsorption effect. In addition, by arranging the filter element 32 between the dust suction fan 31 and the operating table 2, the gas is pre-filtered, and the service life of the dust suction fan 31 can be extended, which is conducive to reducing production costs.

[0039] In order to improve the filtering effect of the filter element 32, the filter element 32 includes a plurality of sub-filters arranged at an angle and connected in sequence, which can increase the filtering area of ​​the filter element 32, thereby absorbing more dust and impurities.

[0040] Furthermore, the filter element 32 is detachably installed in the accommodating cavity 11 , and an operator can remove the filter element 32 for cleaning or replace it with a new one.

[0041] like Figure 1 As shown, the operating table 2 includes a fixed part 21 and a movable part 22. The fixed part 21 is arranged on the chassis 1, and a mounting port is arranged on the fixed part 21, which is directly opposite to the entrance of the accommodating chamber 11; the movable part 22 is connected to the mounting port, and the sieve hole 221 is opened on the movable part 22. The operator can remove the movable part 22 to facilitate the replacement of the filter 32 or to inspect the dust suction fan 31. Among them, the connection method between the movable part 22 and the fixed part 21 includes but is not limited to a threaded connection or a snap connection, and the operator can easily install and disassemble it. In this embodiment, the movable part 22 is a grille, and the grille holes thereon form the above-mentioned sieve hole 221, which is convenient for material acquisition and can reduce processing costs.

[0042] In order to facilitate the operator to grind the workpiece to be polished, a pick-up and placement port 13 for taking and placing the workpiece to be polished is opened on the side of the chassis 1 away from the exhaust duct 12, and the table surface of the operating table 2 gradually tilts downward in the direction close to the pick-up and placement port 13. The inclined table surface is more ergonomic and can improve the operator's work experience. Dust and debris roll on the inclined table surface under the action of gravity, making it easier for dust and debris to pass through the sieve hole 221. The debris that cannot pass through the sieve hole 221 will gather at the lowest point of the inclined table surface, which is easy to collect and clean, thereby improving the operator's working environment.

[0043] It should be noted that the table top of the operating table 2 is composed of a fixed portion 21 and a movable portion 22, wherein the fixed portion 21 and the movable portion 22 are on the same plane without any angle between them, so that dust is not easily accumulated on the table top of the operating table 2 and it is easy to clean.

[0044] Furthermore, in order to achieve the above-mentioned effect and ensure that the workpiece to be polished does not easily slide on the table top of the operating table 2, the angle between the table top of the operating table 2 and the horizontal plane is 5° to 15°.

[0045] like Figure 2 As shown, the filter element 32 is arranged parallel to the table top of the operating table 2, so that the filter element 32 can better absorb the dust and debris entering the accommodating cavity 11. Similarly, the air inlet direction of the dust suction fan 31 is perpendicular to the table top of the operating table 2, so that the force of the gas generated by the dust suction fan 31 on the dust and debris is maximized.

[0046] The air inlet and outlet directions of the dust suction fan 31 are as follows: Figure 2 Indicated by the arrow.

[0047] In addition, the air outlet surface of the dust suction fan 31 is parallel to the table surface of the operating table 2, so that there is a certain space between the air outlet surface of the dust suction fan 31 and the bottom of the accommodating chamber 11, which is convenient for the dust suction fan 31 to discharge gas.

[0048] Furthermore, the axial direction of the air inlet 121 of the exhaust channel 12 is set at an angle with the axial direction of the exhaust port 122 of the exhaust channel 12, and a guide member 4 is provided in the exhaust channel 12 to guide the gas from the air inlet 121 to the exhaust port 122, and the guide member 4 gradually tilts downward toward the direction close to the air inlet 121. Among them, the air inlet 121 of the exhaust channel 12 is directly opposite to the projection of the air outlet surface of the dust suction fan 31 on the vertical plane, and the gas discharged by the dust suction fan 31 can quickly enter the air inlet 121 of the exhaust channel 12 and turn under the action of the guide member 4, so as to flow to the exhaust port 122 of the exhaust channel 12 and be discharged through the exhaust port 122, so that the filtered gas can be quickly discharged to avoid the formation of airflow dead angle.

[0049] It should be noted that the exhaust channel 12 is arranged in the vertical direction, and part of the side walls of the exhaust channel 12 and the side panels of the chassis 1 are arranged around the operating table 2 to form a grinding area, which can block dust and debris, so that the 3D printing post-processing grinding and dust collection device of this embodiment has a compact structure and can save materials.

[0050] Further, continue as Figure 1 As shown, a storage drawer 5 is also provided on the chassis 1 for storing grinding tools. Specifically, the storage drawer 5 is provided below the fixing portion 21, thereby improving the space utilization rate in the chassis 1.

[0051] In addition, handles 14 are provided on both sides of the chassis 1 to facilitate the overall transportation of the 3D printing post-processing, polishing and dust collection device.

[0052] Furthermore, the 3D printing post-processing grinding and dust collection device also includes a control mechanism 6, which is electrically connected to the dust collection fan 31, and is used to control the start and stop of the dust collection fan 31, and can adjust the dust collection mode according to the grinding requirements of the workpiece, thereby improving the dust collection efficiency.

[0053] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A 3D printing post-processing grinding and dust collection device, characterized in that: include: A chassis (1), wherein a communicating accommodation chamber (11) and an exhaust passage (12) are provided in the chassis (1); An operating table (2), the operating table (2) being used to carry a workpiece to be polished, and the operating table (2) covering the opening of the accommodating cavity (11), and the operating table (2) being provided with a sieve hole (221) communicating with the accommodating cavity (11); A dust suction mechanism (3), the dust suction mechanism (3) comprising a dust suction fan (31) and a filter element (32), the dust suction fan (31) being arranged in the accommodating cavity (11), and the filter element (32) being located between the dust suction fan (31) and the operating table (2).

2. The 3D printing post-processing grinding and dust collection device according to claim 1, characterized in that: The filter element (32) comprises a plurality of sub-filter screens which are arranged at an angle and connected in sequence.

3. The 3D printing post-processing grinding and dust collection device according to claim 1, characterized in that: The filter element (32) is detachably installed in the accommodating cavity (11).

4. The 3D printing post-processing grinding and dust collection device according to claim 1, characterized in that: The axial direction of the air inlet (121) of the exhaust channel (12) is arranged at an angle with the axial direction of the exhaust port (122) of the exhaust channel (12); a flow guide (4) is arranged in the exhaust channel (12) and can guide the gas from the air inlet (121) to the exhaust port (122); the flow guide (4) is gradually inclined downward in a direction close to the air inlet (121).

5. The 3D printing post-processing grinding and dust collection device according to claim 1, characterized in that: The operating table (2) comprises: A fixing portion (21) is arranged on the chassis (1), and the fixing portion (21) is provided with a mounting opening that is directly opposite to the opening of the accommodating cavity (11); The movable part (22) is connected to the installation opening, and the sieve hole (221) is opened on the movable part (22).

6. The 3D printing post-processing grinding and dust collection device according to any one of claims 1 to 5, characterized in that: A receiving and placing opening (13) for taking and placing the workpiece to be polished is provided on a side of the chassis (1) facing away from the exhaust passage (12), and the table surface of the operating table (2) gradually tilts downward in a direction close to the receiving and placing opening (13).

7. The 3D printing post-processing grinding and dust collection device according to claim 6, characterized in that: The angle between the table top of the operating table (2) and the horizontal plane is 5° to 15°.

8. The 3D printing post-processing grinding and dust collection device according to claim 6, characterized in that: The air outlet surface of the dust suction fan (31) is parallel to the table surface of the operating table (2).

9. The 3D printing post-processing grinding and dust collection device according to any one of claims 1 to 5, characterized in that: The filter element (32) is arranged parallel to the table surface of the operating table (2); and / or The air inlet direction of the dust suction fan (31) is perpendicular to the tabletop of the operating table (2).

10. The 3D printing post-processing grinding and dust collection device according to any one of claims 1 to 5, characterized in that: The chassis (1) is also provided with a storage drawer (5).

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