A dust treatment mechanism of a 3d printer

Abstract

The application provides a 3D printer dust treatment mechanism and belongs to the technical field of 3D printer dust, which comprises a 3D printer, a wind scooper connected to the 3D printer and communicating with the inside of the 3D printer, one end of a connecting pipe connected to the right side of the wind scooper, a filter shell connected to the other end of the connecting pipe, a connecting channel fixedly connected to the inner top wall of the filter shell, an inner shell fixedly connected to the outer side of the connecting channel and a fixing ring fixedly connected to the inner wall of the inner shell. The application solves the problem that dust accumulates on the filter bag during dust separation, the machine needs to be stopped for treatment when the filter bag needs to be treated, and the production efficiency is affected.

Description

Technical Field

[0001] This invention belongs to the field of 3D printer dust technology, specifically relating to a 3D printer dust treatment mechanism. Background Technology

[0002] A 3D printer, also known as a three-dimensional printer, is a machine that uses rapid prototyping technology. It is a technology that uses a digital model file as a basis and employs powdered metal or plastic and other adhesive materials to construct objects by printing layer by layer. It is a cumulative manufacturing technology that creates three-dimensional objects by printing layers of adhesive materials. The basic principle is that by putting data and raw materials into the 3D printer, the machine will build the product layer by layer according to the program. The printed product can be used immediately.

[0003] During the 3D printing process, dust is released into the 3D printer. To ensure safety during printing, inert gas needs to be continuously introduced. When the inert gas is discharged, it usually carries dust. The discharged inert gas needs to be treated to separate the dust. The dust is separated by filtration. During the dust separation process, the dust accumulates on the filter bag. When the filter bag needs to be treated, the machine needs to be stopped, which affects production efficiency. Therefore, a dust treatment mechanism for 3D printers is proposed. Summary of the Invention

[0004] This invention provides a dust treatment mechanism for 3D printers, which aims to solve the problem that during the dust separation process, dust accumulates on the filter bag, requiring the machine to be stopped for processing, thus affecting production efficiency.

[0005] This invention provides a dust handling mechanism for a 3D printer, including a 3D printer. A draft hood is connected to the right side of the 3D printer and communicates with the printer's interior. One end of a connecting pipe is connected to the right side of the draft hood, and the other end of the connecting pipe is connected to a filter shell. A connecting channel is fixedly connected to the inner top wall of the filter shell, and an inner shell is fixedly connected to the outer side of the connecting channel. A fixing ring is fixedly connected to the inner wall of the inner shell, and an inner ring is fixedly connected to the bottom of the inner shell. An outer ring is fixedly connected to the bottom of the filter shell, and a base is movably connected to the middle of the fixing ring. The top of the base is fixed... The system comprises several circumferentially distributed support bars. A threaded connecting ring is fixedly connected to the top of each support bar. A support plate is threadedly connected to the threaded connecting ring. Two sets of symmetrically distributed connecting and sealing assemblies are provided on the top of the support plate. Embedded blocks are fixedly connected to the left and right sides of the bottom of the support plate. A conduction and sealing assembly is provided in the connecting channel. A threaded connecting ring is threadedly connected between the outer and inner rings. Two sets of circumferentially distributed support rods are fixedly connected to the top of the threaded connecting ring. A connecting ring is fixedly connected to the top of each set of support rods. A filter screen is fixedly connected between two connecting rings.

[0006] Furthermore, the bottom wall of the support plate is provided with a threaded groove that matches the threaded connecting ring, the top of the fixing ring is provided with a slot that matches the embedded block, filter bags are sleeved on the outer side of several support bars, a one-way valve is installed on the right side of the inner shell, and an exhaust pipe is connected to the right side of the filter shell.

[0007] By adopting the above technical solution, the cooperation between the threaded groove and the threaded connecting ring allows the support strip with the filter bag to be stably installed at the bottom of the support plate to separate the dust. When it is necessary to separate the threaded connecting ring from the support plate, the support plate falls and drives the embedded block into the slot to restrict the support plate. In this way, the threaded connecting ring can be rotated and separated from the support plate.

[0008] Furthermore, the connection sealing assembly includes a connecting block, a first receiving groove, a first spring, a first locking block, a traction rod, a blocking plate, a flow channel, a second receiving groove, a second spring, and a second locking block. The connecting block is fixedly connected to the top of the support plate. Two first receiving grooves are symmetrically arranged and opened at the bottom of the connecting channel. Two first springs are arranged and fixedly connected to the groove wall of the corresponding first receiving groove. Two first locking blocks are arranged and fixedly connected to the corresponding first spring. The traction rod is inserted into the top of the connecting block. The blocking plate is fixedly connected to the top of the traction rod. The flow channel is opened on the side wall of the connecting channel. Two second receiving grooves are symmetrically arranged and opened at the top of the connecting block. Two second springs are symmetrically arranged and fixedly connected to the groove wall of the corresponding second receiving groove. Two second locking blocks are symmetrically arranged and fixedly connected to the corresponding second spring.

[0009] By adopting the above technical solution, the flow direction of inert gas containing dust can be changed by using the connecting sealing component, so that the inert gas will not drift out. At the same time, when the filter bag reaches its load-bearing capacity, the support strip with the filter bag can be automatically discharged, which is convenient for timely replacement.

[0010] Furthermore, the receiving groove one matches the card block one, the two sides of the connecting block are provided with card slots one that match the card block one, the plug is inserted into the connecting channel, the card block two matches the receiving groove two, the bottom left and right sides of the traction rod are provided with card slots two that match the card block two, and the top two sides of the plug are equipped with limit blocks.

[0011] By adopting the above technical solution, the first locking block is inserted into the first locking slot. The part of the locking block that inserts into the connecting block is arc-shaped. When filtering inert gas, as the dust in the filter bag gradually increases and exceeds the bearing limit of the first spring and the first locking block, the first locking block will be squeezed into the first receiving groove. This causes the connecting block to separate from the connecting channel, allowing the support plate to fall downwards. When the base and support strip are removed from the filter shell, it serves as a reminder to the workers, who can then separate the support strip from the support plate, remove the separated dust, and process the filter bag. Using the second locking slot, the second locking block, and the traction rod, the blocking plate can be moved when the support plate falls. Then, the traction rod separates from the connecting block. This allows the flow channel to be opened by moving the blocking plate, allowing the inert gas to flow out from the flow channel, thus preventing inert gas leakage.

[0012] Furthermore, the conduction and sealing assembly includes a blocking block, a supporting rod, a blocking platform, a sliding rod, a spring, a supporting plate, a cylinder, and a support rod. The blocking block is fixedly connected to the bottom of the inner wall of the connecting channel. The supporting rod is fixedly connected to the top opening of the blocking block. The sliding rod is fixedly connected to the bottom middle of the supporting rod. The blocking platform is slidably connected to the outer side of the sliding rod. The supporting plate is fixedly connected to the bottom of the sliding rod. The support rod is fixedly connected to the support bar. The cylinder is fixedly connected to the top middle of the support rod. The spring is fitted onto the outer side of the sliding rod.

[0013] By adopting the above technical solution and using the conductive sealing component, when the support plate moves downward, the support plate and support bar drive the support rod to move, thereby causing the cylinder to move. The cylinder separates from the blocking platform, and the blocking platform loses its support. Under the action of spring three, spring three drives the blocking platform to move, blocking the opening below the blocking block. In this way, the inert gas will flow from the flow channel.

[0014] Furthermore, the sliding rod is inserted into the cylinder, and grooves are provided on both the left and right sides of the sliding rod. A slider matching the groove is installed on the blocking platform, and a frustum-shaped groove is provided in the middle of the blocking block.

[0015] By adopting the above technical solution, a sliding rod is inserted into the cylinder, and the cylinder supports the blocking platform at the bottom. At this time, the tension spring three, through the cooperation of the slider and the groove, allows the blocking platform to move stably.

[0016] Furthermore, one end of the spring three is fixedly connected to the bottom of the blocking platform, and the top of the spring three is fixedly connected to the top of the supporting plate.

[0017] By adopting the above technical solution, the three pairs of springs apply traction force to the blocking platform, allowing the blocking platform to move downwards and block the lower opening of the blocking block when there is no support.

[0018] Furthermore, the support plate has a through hole in the middle that communicates with the connecting channel, the through hole communicates with the plug, and the top of the connecting ring is fixedly connected with symmetrically distributed support rods, and the top of the support rods is fixedly connected with a closing ring.

[0019] By adopting the above technical solution, inert gas can flow into the space enclosed by the support strip from the connecting channel and through hole.

[0020] The beneficial effects of this invention are as follows:

[0021] This invention, through a connecting sealing component, can change the flow direction of inert gas carrying dust, preventing the inert gas from escaping. Simultaneously, when the filter bag reaches its load-bearing capacity, it automatically discharges the support strip containing the filter bag, allowing workers to easily remove dust and replace the filter bag. Furthermore, in conjunction with the guiding sealing component, it can alter the flow path of the inert gas, providing temporary treatment. When treating the filter bag, the machine does not need to be stopped; the inert gas is treated through the filter screen, reducing the number of times the machine needs to stop to process filter bags and improving production efficiency.

[0022] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the filter shell according to an embodiment of the present invention;

[0026] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B;

[0028] Figure 5 This is a schematic diagram of the sliding rod and cylindrical structure according to an embodiment of the present invention;

[0029] Reference numerals: 1. 3D printer; 2. Air guide hood; 3. Connecting pipe; 4. Filter shell; 5. Connecting channel; 6. Inner ring; 7. Inner shell; 8. Fixing ring; 9. Outer ring; 10. Support bar; 11. Threaded connecting ring one; 12. Support plate; 131. Connecting block; 132. Receiving groove one; 133. Spring one; 134. Locking block one; 135. Traction rod; 136. Blocking plate; 137. Flow channel; 138. Receiving groove two; 139. Spring two; 1310. Locking block two; 14. Embedded block; 151. Blocking block; 152. Supporting rod; 153. Blocking platform; 154. Sliding rod; 155. Spring three; 156. Supporting plate; 157. Cylinder; 158. Support rod; 16. Support rod; 17. Base; 18. Threaded connecting ring two; 19. Connecting ring; 20. Filter screen. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-5This invention provides a dust handling mechanism for a 3D printer, comprising a 3D printer 1, an air guide hood 2 connected to the right side of the 3D printer 1 and communicating with its interior, a connecting pipe 3 connected to the right side of the air guide hood 2, a filter shell 4 connected to the other end of the connecting pipe 3, a connecting channel 5 fixedly connected to the inner top wall of the filter shell 4, an inner shell 7 fixedly connected to the outer side of the connecting channel 5, a fixing ring 8 fixedly connected to the inner wall of the inner shell 7, an inner ring 6 fixedly connected to the bottom of the inner shell 7, an outer ring 9 fixedly connected to the bottom of the filter shell 4, a base 17 movably connected to the middle of the fixing ring 8, and several circular rings fixedly connected to the top of the base 17. The support bars 10 are distributed around the perimeter. A threaded connecting ring 11 is fixedly connected to the top of several support bars 10. A support plate 12 is threadedly connected to the threaded connecting ring 11. Two sets of symmetrically distributed connecting and sealing components are provided on the top of the support plate 12. Embedded blocks 14 are fixedly connected to the left and right sides of the bottom of the support plate 12. A conduction sealing component is provided in the connecting channel 5. A threaded connecting ring 28 is threadedly connected between the outer ring 9 and the inner ring 6. Two sets of circumferentially distributed support rods 16 are fixedly connected to the top of the threaded connecting ring 28. A connecting ring 19 is fixedly connected to the top of each set of support rods 16. A filter screen 20 is fixedly connected between the two connecting rings 19.

[0032] The bottom wall of the support plate 12 has a threaded groove that matches the threaded connecting ring 11, and the top of the fixing ring 8 has a slot that matches the insert block 14. Filter bags are fitted on the outer sides of several support bars 10. A one-way valve is installed on the right side of the inner shell 7, and an exhaust pipe is connected to the right side of the filter shell 4. The cooperation between the threaded groove and the threaded connecting ring 11 allows the support bars 10 with filter bags to be stably installed at the bottom of the support plate 12 to separate dust. When it is necessary to separate the threaded connecting ring 11 from the support plate 12, the support plate 12 falls and drives the insert block 14 into the slot to restrict the support plate 12. This allows the threaded connecting ring 11 to be rotated and separated from the support plate 12.

[0033] The connection sealing assembly includes a connecting block 131, a receiving groove 132, a spring 133, a locking block 134, a traction rod 135, a blocking plate 136, a flow channel 137, a second receiving groove 138, a second spring 139, and a second locking block 1310. The connecting block 131 is fixedly connected to the top of the support plate 12. Two receiving grooves 132 are symmetrically arranged and opened at the bottom of the connecting channel 5. Two springs 133 are arranged and fixedly connected to the groove wall of the corresponding receiving groove 132. Two locking blocks 134 are arranged and fixedly connected to the corresponding spring 133. The traction rod 135 is inserted into the top of the connecting block 131. The plug 136 is fixedly connected to the top of the traction rod 135. The flow channel 137 is opened on the side wall of the connecting channel 5. Two receiving slots 138 are symmetrically arranged and opened on the top of the connecting block 131. Two springs 139 are symmetrically arranged and fixedly connected to the corresponding receiving slot 138. Two locking blocks 1310 are symmetrically arranged and fixedly connected to the corresponding springs 139. The connecting sealing assembly can change the flow direction of the inert gas with dust, so that the inert gas will not drift out. At the same time, when the filter bag reaches its load-bearing capacity, the support strip 10 with the filter bag can be automatically discharged for timely replacement.

[0034] The receiving groove 132 matches the locking block 134. The connecting block 131 has locking slots on both sides that match the locking block 134. The plug 136 is inserted into the connecting channel 5. The locking block 1310 matches the receiving groove 138. The bottom left and right sides of the traction rod 135 have locking slots on both sides that match the locking block 1310. Limiting blocks are installed on the top sides of the plug 136. The locking block 134 is inserted into the locking slot. The part of the locking block 134 inserted into the connecting block 131 is arc-shaped. When filtering inert gas, if the dust in the filter bag gradually increases beyond the bearing limit of the spring 133 and the locking block 134, the locking block 134 will be squeezed into the receiving groove 132. In this way, the connecting block 131 will separate from the connecting channel 5, allowing the support plate 12 to fall and move downwards. When the base 17 and support strip 10 are removed from the filter shell 4, it serves as a reminder to the staff. The staff can separate the support strip 10 from the support plate 12, remove the separated dust, and process the filter bag. Using the second slot, the second block 1310, and the traction rod 135, the blocking plate 136 can be moved when the support plate 12 falls. Then the traction rod 135 separates from the connecting block 131. This allows the flow channel 137 to be opened by moving the blocking plate 136, allowing the inert gas to flow out from the flow channel 137, thus preventing the inert gas from leaking out.

[0035] The conduction sealing assembly includes a blocking block 151, a supporting rod 152, a blocking platform 153, a sliding rod 154, a spring 155, a supporting plate 156, a cylinder 157, and a support rod 158. The blocking block 151 is fixedly connected to the bottom of the inner wall of the connecting channel 5. The supporting rod 152 is fixedly connected to the top opening of the blocking block 151. The sliding rod 154 is fixedly connected to the bottom middle of the supporting rod 152. The blocking platform 153 is slidably connected to the outer side of the sliding rod 154. The supporting plate 156 is fixedly connected to the bottom of the sliding rod 154. The support rod 158 is fixedly connected to the support bar 10. The cylinder 157 is fixedly connected to the top middle of the support rod 158. The spring 155 is fitted on the outside of the sliding rod 154. Using the conductive sealing assembly, when the support plate 12 moves downward, the support plate 12 and the support bar 10 drive the support rod 158 to move, thereby moving the cylinder 157. The cylinder 157 separates from the blocking platform 153. The blocking platform 153 loses its support. Under the action of the spring 155, the spring 155 drives the blocking platform 153 to move, blocking the opening below the blocking block 151. In this way, the inert gas will flow from the flow channel 137.

[0036] The sliding rod 154 is inserted into the cylinder 157. The left and right sides of the sliding rod 154 are provided with grooves. The blocking platform 153 is equipped with a slider that matches the groove. The blocking block 151 has a frustum-shaped groove in the middle. By inserting the sliding rod 154 into the cylinder 157, the cylinder 157 supports the blocking platform 153 at the bottom. At this time, the tension spring 155 is stretched. By using the cooperation of the slider and the groove, the blocking platform 153 can move stably.

[0037] One end of spring 3 155 is fixedly connected to the bottom of the blocking platform 153, and the top of spring 3 155 is fixedly connected to the top of the support plate 156. Spring 3 155 applies traction force to the blocking platform 153, so that the blocking platform 153 moves downward to block the lower opening of the blocking block 151 when there is no support.

[0038] The support plate 12 has a through hole in the middle that communicates with the connecting channel 5. The through hole communicates with the plug 151. The top of the connecting ring 19 is fixedly connected with symmetrically distributed support rods. The top of the support rods is fixedly connected with a sealing ring. Inert gas can flow into the space enclosed by the support bar 10 from the connecting channel 5 and the through hole. When the filter screen 20 is removed, if it is necessary to seal the space between the filter shell 4 and the inner shell 7, the sealing ring can be moved to the bottom of the discharge pipe to seal it without completely removing the sealing ring and the support rod.

[0039] The specific implementation method is as follows: During use, inert gas containing dust in the 3D printer 1 flows from the air guide hood 2 and connecting pipe 3 into the filter shell 4, and then flows through the connecting channel 5, block 151, and through hole into the space enclosed by the support bar 10. As the inert gas flows, the dust is retained by the filter bag, while the inert gas flows through the one-way valve on the right side of the inner shell 7 into the space between the filter shell 4 and the inner shell 7, and then is discharged through the exhaust pipe. During the gradual filtration of dust, the dust remains in the support bar 10, and the weight of the support bar 10 gradually increases. When the weight exceeds the pressure of the locking block 134 and spring 133, the dust is released into the support bar 10. When the connecting block 131 reaches its limit, it will press the locking block 134 back into the receiving groove 132. At this time, the connecting block 131 moves downward and separates from the connecting channel 5, allowing the support plate 12 to fall downward. Simultaneously, the connecting block 131 will pull the traction rod 135 to move, thereby driving the blocking plate 136 to move, opening the flow channel 137. When the limiting block contacts the wall of the flow channel 137, the traction rod 135 separates from the connecting block 131. At the same time, when the support plate 12 moves, the support plate 12 and the support bar 10 drive the support rod 158 to move, thereby allowing the cylinder 157 to move. As the cylinder 157 moves, it separates from the blocking platform 153. The blocking platform 153, losing its support, is moved by the spring 155, which in turn moves it to block the opening below the blocking block 151, preventing the inert gas from escaping. The inert gas then flows through the flow channel 137 and then through the filter screen 20, separating the dust. When the support plate 12 causes the embedded block 14 to contact the slot at the top of the fixing ring 8, the operator can rotate the base 17 to separate the threaded connecting ring 11, the support bar 10, and the support plate 12, allowing the separated dust to be removed and the filter bag to be cleaned. This process allows the filter bag to automatically discharge sufficient dust, making it convenient for workers to remove the dust and replace the filter bag. It also alters the flow path of the inert gas, providing temporary treatment. When treating the filter bag, the machine does not need to be stopped; the inert gas is treated through the filter screen 20, reducing the number of times the machine needs to stop to process the filter bag and improving production efficiency. When the dust filtered by the filter screen 20 needs to be treated, the threaded connecting ring 28 can be rotated to separate it from the outer ring 9 and inner ring 6, allowing the filter screen 20 to be removed.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A 3D printer dust handling mechanism comprising a 3D printer (1), characterized in that, The right side of the 3d printer (1) is connected with the air scoop (2) which is communicated with the inside of the 3d printer (1), one end of the air scoop (2) is connected with the connecting pipe (3), the other end of the connecting pipe (3) is connected with the filter shell (4), the inner top wall of the filter shell (4) is fixedly connected with the connecting channel (5), the outer side of the connecting channel (5) is fixedly connected with the inner shell (7), the inner wall of the inner shell (7) is fixedly connected with the fixed ring (8), the bottom of the inner shell (7) is fixedly connected with the inner ring (6), the bottom of the filter shell (4) is fixedly connected with the outer ring (9), the middle of the fixed ring (8) is movably connected with the base (17), the top of the base (17) is fixedly connected with a plurality of circumferentially distributed support strips (10), the top of a plurality of the support strips (10) is fixedly connected with the threaded connection ring one (11), the threaded connection ring one (11) is threadedly connected with the support plate (12), the top of the support plate (12) is provided with two groups of symmetrically distributed connection plugging assemblies, the bottom of the support plate (12) is fixedly connected with the embedded blocks (14) on the left side and the right side, the connecting channel (5) is provided with a through plugging assembly, the threaded connection ring two (18) is threadedly connected between the outer ring (9) and the inner ring (6), the top of the threaded connection ring two (18) is fixedly connected with two groups of circumferentially distributed supporting rods (16), the top of each group of the supporting rods (16) is fixedly connected with the connecting ring (19), the filter screen (20) is fixedly connected between the two connecting rings (19); A plurality of the support strips (10) are sleeved with filter bags, the right side of the inner shell (7) is provided with a one-way valve, the right side of the filter shell (4) is connected with the exhaust pipe; The connection plugging assembly comprises a connecting block (131), a containing groove one (132), a spring one (133), a clamping block one (134), a traction rod (135), a blocking piece (136), a flow channel (137), a containing groove two (138), a spring two (139), and a clamping block two (1310), the connecting block (131) is fixedly connected with the top of the support plate (12), the containing groove one (132) is symmetrically provided with two and is opened in the bottom of the connecting channel (5), the spring one (133) is provided with two and is fixedly connected with the groove wall of the corresponding containing groove one (132) respectively, the clamping block one (134) is provided with two and is fixedly connected with the corresponding spring one (133) respectively, the traction rod (135) is inserted in the top of the connecting block (131), the blocking piece (136) is fixedly connected with the top of the traction rod (135), and the flow channel (137) is opened in the edge wall of the connecting channel (5); The containing groove one (132) is matched with the clamping block one (134), the two sides of the connecting block (131) are provided with the clamping grooves one matched with the clamping block one (134), and the blocking piece (136) is inserted with the connecting channel (5). The on-off plugging assembly comprises a plugging block (151), a supporting rod (152), a plugging table (153), a sliding rod (154), a spring three (155), a supporting piece (156), a cylinder (157), a supporting rod (158), the plugging block (151) is fixedly connected with the inner wall bottom of the connecting channel (5), the supporting rod (152) is fixedly connected with the top opening of the plugging block (151), the sliding rod (154) is fixedly connected with the bottom middle of the supporting rod (152), the plugging table (153) is slidingly connected with the outer side of the sliding rod (154), the supporting piece (156) is fixedly connected with the bottom of the sliding rod (154), the supporting rod (158) is fixedly connected with the supporting strip (10), the cylinder (157) is fixedly connected with the top middle of the supporting rod (158), and the spring three (155) is sleeved on the outer side of the sliding rod (154); The sliding rod (154) is inserted into the cylinder (157), and the left and right sides of the sliding rod (154) are both provided with a sliding groove, the plugging table (153) is provided with a sliding block matched with the sliding groove, and the middle of the plugging block (151) is provided with a circular table-shaped groove; One end of the spring three (155) is fixedly connected with the bottom of the plugging table (153), and the top of the spring three (155) is fixedly connected with the top of the supporting piece (156); The middle of the supporting plate (12) is provided with a through hole communicated with the connecting channel (5), and the through hole is communicated with the plugging block (151); The part of the clamping block inserted into the connecting block is arc-shaped.

2. A dust handling mechanism for a 3D printer according to claim 1, wherein: The bottom wall of the supporting plate (12) is provided with a threaded groove matched with the threaded connecting ring one (11), and the top of the fixed ring (8) is provided with an insertion groove matched with the embedded block (14).

3. A dust handling mechanism for a 3D printer according to claim 2, wherein: The accommodating groove two (138) is symmetrically provided with two and is arranged at the top of the connecting block (131), the spring two (139) is symmetrically provided with two and is fixedly connected with the groove wall of the corresponding accommodating groove two (138), and the clamping block two (1310) is symmetrically provided with two and is fixedly connected with the corresponding spring two (139).

4. A dust handling mechanism for a 3D printer according to claim 3, wherein: The clamping block two (1310) is matched with the accommodating groove two (138), the bottom left and right sides of the traction rod (135) are both provided with a clamping groove two matched with the clamping block two (1310), and the top two sides of the plugging piece (136) are provided with a limiting block.

5. A dust handling mechanism for a 3D printer according to claim 4, wherein: The top of the connecting ring (19) is fixedly connected with the symmetrically distributed supporting rods, and the top of the supporting rod is fixedly connected with the closed ring.

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