A 3D printer

Abstract

The present invention belongs to the technical field of 3D printers, and specifically refers to a 3D printer, comprising a printing table, a bottom suction type smoke filter mechanism and a wind flow deformation prevention cooling mechanism, wherein the bottom suction type smoke filter mechanism is arranged on the upper wall of the printing table, the wind flow deformation prevention cooling mechanism is arranged on the bottom suction type smoke filter mechanism, the bottom suction type smoke filter mechanism comprises a filtering mechanism and an adsorption mechanism, and the filtering mechanism is arranged on the upper wall of the printing table. The present invention provides a 3D printer capable of processing smoke generated during the printing process of a plastic model and timely finalizing the printed plastic model.

Description

Technical Field

[0001] The invention belongs to the technical field of 3D printers, and specifically refers to a 3D printer. Background Art

[0002] A 3D printer, also known as a three-dimensional printer, is a rapid prototyping process equipment. Its principle is to put data and raw materials into the 3D printer, and the machine will build the product layer by layer according to the program; the printed products can be used immediately. At the same time, the printed products need to be cooled synchronously during printing to improve printing efficiency.

[0003] The existing 3D printers have the following problems:

[0004] Existing 3D printers have the function of processing the smoke generated during the printing process of plastic models, which causes the harmful substances in the smoke generated by plastic 3D printing to spread into the environment, causing pollution and affecting the air quality. Secondly, traditional plastic 3D printing devices cannot shape the printed plastic models in time, causing the printed models to collapse and deform. Therefore, there is an urgent need for a 3D printer that can ensure the quality of the printed plastic models and will not pollute the environment. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a 3D printer that can process the smoke generated during the printing process of the plastic model and can promptly finalize the printed plastic model.

[0006] The technical solution adopted in this scheme is as follows: A 3D printer proposed in this scheme includes a printing table, a bottom suction type smoke filter mechanism and an anti-windflow deformation cooling mechanism, the bottom suction type smoke filter mechanism is arranged on the upper wall of the printing table, the anti-windflow deformation cooling mechanism is arranged on the bottom suction type smoke filter mechanism, the bottom suction type smoke filter mechanism includes a filtering mechanism and an adsorption mechanism, the filtering mechanism is arranged on the upper wall of the printing table, the adsorption mechanism is arranged on the inner wall of the filtering mechanism, the anti-windflow deformation cooling mechanism includes a cold source mechanism, a radiation mechanism and a separation and combination mechanism, the cold source mechanism is arranged on the bottom wall of the filtering mechanism, the radiation mechanism is arranged on the inner wall of the cold source mechanism, and the separation and combination mechanism is arranged on the upper wall of the filtering mechanism.

[0007] As a further preferred embodiment of the present invention, the filtering mechanism includes a filter cartridge, a dust suction ring plate, an exhaust valve, a filter layer, a fixed electromagnet and a sliding magnet. Multiple groups of the filter cartridges are arranged on the wall of the printing table, the dust suction ring plate is slidably arranged between the filter cartridges, the exhaust valve is connected to the end of the filter cartridge close to the printing table, the filter layer is arranged on the inner wall of the filter cartridge, the fixed electromagnet is arranged on the wall of the printing table outside the filter cartridge, and the sliding magnet is arranged on the bottom wall of the dust suction ring plate outside the filter cartridge; the adsorption mechanism includes a pipeline groove, an annular pipe, a dust suction pump, a dust exhaust pipe and a telescopic pipe. The pipeline groove is arranged on the upper wall of the filter cartridge, and the pipeline groove is a through-arrangement. Multiple groups of the dust suction pumps are arranged through the inner wall of the dust suction ring plate, the annular pipe is arranged inside the pipeline groove, the dust exhaust pipe is connected between the exhaust end of the dust suction pump and the annular pipe, and the telescopic pipe passes through the printing table and is connected between the end of the filter cartridge away from the exhaust valve and the annular pipe.

[0008] When in use, in the initial state, the dust suction ring plate is located on the side wall of one end of the filter cartridge near the exhaust valve. When the printer is printing on the wall of the printing table, as the height of the plastic model increases, the fixed electromagnet is energized to generate magnetism. The fixed electromagnet and the sliding magnet are set with the same pole. The fixed electromagnet is fixed on the wall of the printing table and pushes the sliding magnet through repulsion. The sliding magnet drives the dust suction ring plate to slide along the side wall of the filter cartridge to increase its height. The dust suction ring plate changes its position with the height of the printed model. The dust suction pump sucks the smoke generated during the printing of the plastic model into the inside of the annular tube through the dust exhaust pipe through the suction end. The annular tube transports the smoke to the inside of the filter cartridge for treatment through the telescopic tube. The smoke is filtered by the filter layer and discharged from the inside of the filter cartridge from the exhaust valve, thereby completing the treatment of the smoke generated during the plastic printing process.

[0009] Preferably, the cold source mechanism comprises a cooling spring, a cooling block, a thermal insulation pipe and a thermoelectric cooling sheet group, multiple groups of the cooling springs are arranged on the bottom wall of the dust suction ring plate, the cooling block is arranged on the side of the cooling spring away from the dust suction ring plate, the thermal insulation pipe is arranged on the side of the cooling block away from the cooling spring, the thermoelectric cooling sheet group is arranged on the side of the cooling block close to the filter cylinder, and the cooling end of the thermoelectric cooling sheet group is penetrated and arranged inside the thermal insulation pipe; the radiation mechanism comprises a radiation groove and a radiation copper block, multiple groups of the radiation grooves are arranged on the inner wall of the thermal insulation pipe, and the radiation copper block is arranged inside the radiation groove; the separation and combination mechanism comprises a threaded hole, a connecting bolt, a separation electromagnet and a separation magnetic block, multiple groups of the connecting bolts penetrate the upper wall of the dust suction ring plate on one side of the pipeline groove, the threaded hole is arranged at one end of the cooling block away from the filter cylinder, the connecting bolt is threadedly connected to the threaded hole, multiple groups of the separation electromagnets are arranged on the wall of the printing table, multiple groups of the separation magnetic blocks are arranged on the bottom wall of the thermal insulation pipe, and the separation electromagnets and the separation magnetic blocks are arranged opposite to each other.

[0010] When in use, in the initial state, the cooling spring is shortened, the connecting bolt is rotated, the connecting bolt is screwed into the threaded hole, the dust collection ring plate and the sliding magnet are fixed together, the dust collection ring plate drives the cooling block to move through the connecting bolt while changing its position, the cooling block drives the radiating copper block through the insulation tube to radiate cold to the plastic model from bottom to top, the thermoelectric refrigeration plate group cools the air inside the insulation tube through the cooling end, the insulation tube temperature is lowered to cool the radiating copper block, and the radiating copper block cools and shapes the printed plastic model through cold radiation.

[0011] Specifically, a controller is provided on the upper wall of the filter cartridge.

[0012] Preferably, the controller is electrically connected to the fixed electromagnet, the dust suction pump, the thermoelectric cooling sheet group and the separation electromagnet respectively.

[0013] The beneficial effects achieved by adopting the above structure are as follows:

[0014] Compared with the prior art, the present invention adopts an integrated dust removal and cooling arrangement, which can not only process the smoke generated during the printing process of the plastic model, but also cool and shape the plastic model. The strength of the plastic model is enhanced by cooling and shaping the outside of the plastic model through the radiation copper block. This can avoid driving the gas flow when the dust suction pump extracts the smoke, causing the flowing gas to flow through the unformed plastic model, thereby blowing the plastic model to cause it to be partially deformed, causing the entire model to be scrapped, thereby improving the printing efficiency of the model to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0016] Figure 2 It is a side perspective view of this scheme;

[0017] Figure 3 This is a bottom-up stereogram of the scheme;

[0018] Figure 4 This is the main view of this scheme;

[0019] Figure 5 This is a top view of the scheme;

[0020] Figure 6 for Figure 5 AA section view of the part;

[0021] Figure 7 for Figure 1 A magnified structural view of part I;

[0022] Figure 8 for Figure 2A magnified structural view of Part II;

[0023] Fig. 9 for Figure 3 A magnified structural view of Part III;

[0024] Fig.10 for Figure 1 Enlarged structural view of part IV.

[0025] Among them, 1. printing table, 2. bottom suction type smoke filter mechanism, 3. filtering mechanism, 4. filter cartridge, 5. dust suction ring plate, 6. exhaust valve, 7. filter layer, 8. fixed electromagnet, 9. sliding magnet, 10. adsorption mechanism, 11. pipe groove, 12. annular pipe, 13. dust suction pump, 14. dust exhaust pipe, 15. telescopic pipe, 16. anti-wind flow deformation cooling mechanism, 17. cold source mechanism, 18. cooling spring, 19. cooling block, 20. insulation pipe, 21. thermoelectric cooling plate group, 22. radiation mechanism, 23. radiation groove, 24. radiation copper block, 25. separation and combination mechanism, 26. threaded hole, 27. connecting bolt, 28. separation electromagnet, 29. separation magnetic block, 30. controller.

[0026] The accompanying drawings are used to provide further understanding of the present scheme and constitute a part of the specification. Together with the embodiments of the present scheme, they are used to explain the present scheme and do not constitute a limitation on the present scheme. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the present scheme will be clearly and completely described below in conjunction with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are only part of the embodiments of the present scheme, not all of the embodiments; based on the embodiments in the present scheme, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present scheme.

[0028] In the description of this scheme, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this scheme.

[0029] like Figure 1-Figure 10As shown, a 3D printer proposed in this scheme includes a printing table 1, a bottom suction type smoke filter mechanism 2 and an anti-wind flow deformation cooling mechanism 16, wherein the bottom suction type smoke filter mechanism 2 is arranged on the upper wall of the printing table 1, and the anti-wind flow deformation cooling mechanism 16 is arranged on the bottom suction type smoke filter mechanism 2, the bottom suction type smoke filter mechanism 2 includes a filtering mechanism 3 and an adsorption mechanism 10, the filtering mechanism 3 is arranged on the upper wall of the printing table 1, and the adsorption mechanism 10 is arranged on the inner wall of the filtering mechanism 3, the anti-wind flow deformation cooling mechanism 16 includes a cold source mechanism 17, a radiation mechanism 22 and a separation and combination mechanism 25, the cold source mechanism 17 is arranged on the bottom wall of the filtering mechanism 3, the radiation mechanism 22 is arranged on the inner wall of the cold source mechanism 17, and the separation and combination mechanism 25 is arranged on the upper wall of the filtering mechanism 3.

[0030] The filtering mechanism 3 includes a filter cartridge 4, a dust suction ring plate 5, an exhaust valve 6, a filter layer 7, a fixed electromagnet 8 and a sliding magnet 9. A plurality of filter cartridges 4 are arranged on the upper wall of the printing table 1. The dust suction ring plate 5 is slidably arranged between the filter cartridges 4. The exhaust valve 6 is connected to one end of the filter cartridge 4 close to the printing table 1. The filter layer 7 is arranged on the inner wall of the filter cartridge 4. The fixed electromagnet 8 is arranged on the upper wall of the printing table 1 outside the filter cartridge 4. The sliding magnet 9 is arranged on the bottom wall of the dust suction ring plate 5 outside the filter cartridge 4. The attached mechanism 10 includes a pipe groove 11, an annular pipe 12, a dust suction pump 13, a dust exhaust pipe 14 and a telescopic pipe 15. The pipe groove 11 is arranged on the upper wall of the filter cylinder 4. The pipe groove 11 is arranged through. Multiple groups of dust suction pumps 13 are arranged through the inner wall of the dust suction ring plate 5. The annular pipe 12 is arranged inside the pipe groove 11. The dust exhaust pipe 14 is connected between the exhaust end of the dust suction pump 13 and the annular pipe 12. The telescopic pipe 15 passes through the printing table 1 and is connected between the end of the filter cylinder 4 away from the exhaust valve 6 and the annular pipe 12.

[0031] The cold source mechanism 17 includes a cooling spring 18, a cooling block 19, a heat preservation tube 20 and a thermoelectric cooling sheet group 21. Multiple groups of the cooling springs 18 are arranged on the bottom wall of the dust collection ring plate 5. The cooling block 19 is arranged on the side of the cooling spring 18 away from the dust collection ring plate 5. The heat preservation tube 20 is arranged on the side of the cooling block 19 away from the cooling spring 18. The thermoelectric cooling sheet group 21 is arranged on the side of the cooling block 19 close to the filter cartridge 4. The cooling end of the thermoelectric cooling sheet group 21 is arranged inside the heat preservation tube 20. The radiation mechanism 22 includes a radiation slot 23 and a radiation copper block 24. Multiple groups of the radiation slots 23 are arranged The inner wall of the insulation tube 20, the radiation copper block 24 is arranged inside the radiation slot 23; the separation and combination mechanism 25 includes a threaded hole 26, a connecting bolt 27, a separation electromagnet 28 and a separation magnetic block 29, multiple groups of the connecting bolts 27 pass through the upper wall of the dust collection ring plate 5 arranged on one side of the pipeline slot 11, the threaded hole 26 is arranged at the end of the cooling block 19 away from the filter cylinder 4, the connecting bolt 27 is threadedly connected with the threaded hole 26, multiple groups of the separation electromagnet 28 are arranged on the upper wall of the printing table 1, and multiple groups of the separation magnetic block 29 are arranged on the bottom wall of the insulation tube 20, and the separation electromagnet 28 and the separation magnetic block 29 are arranged opposite to each other.

[0032] A controller 30 is disposed on the upper wall of the filter cartridge 4 .

[0033] The controller 30 is electrically connected to the fixed electromagnet 8 , the dust suction pump 13 , the thermoelectric cooling sheet group 21 and the separation electromagnet 28 , respectively.

[0034] When in use, in the initial state, the dust collecting ring plate 5 is located on the side wall of one end of the filter cartridge 4 close to the exhaust valve 6, the cooling spring 18 is shortened, the connecting bolt 27 is rotated, the connecting bolt 27 is screwed into the threaded hole 26, the dust collecting ring plate 5 and the sliding magnet 9 are fixed together, and the separation magnetic block 29 is placed on the upper wall of the separation electromagnet 28;

[0035] When the model printer performs printing operation on the upper wall of the printing table 1, the print head and the radiation copper block 24 are arranged horizontally. As the height of the plastic model increases, the controller 30 controls the fixed electromagnet 8 to start, and the fixed electromagnet 8 is energized to generate magnetism. The fixed electromagnet 8 and the sliding magnet 9 are arranged with the same pole. The fixed electromagnet 8 is fixed on the upper wall of the printing table 1 and pushes the sliding magnet 9 through repulsion. The sliding magnet 9 drives the dust suction ring plate 5 to slide along the side wall of the filter cylinder 4 to increase the height. The dust suction ring plate 5 changes its position following the height of the printed model. The dust suction pump 13 sucks the smoke generated during the printing of the plastic model into the inside of the annular tube 12 through the dust exhaust pipe 14 through the suction end. The annular tube 12 transports the smoke to the inside of the filter cylinder 4 through the telescopic tube 15 for treatment. The smoke is filtered by the filter layer 7 and discharged from the inside of the filter cylinder 4 from the exhaust valve 6, completing the treatment of the smoke generated during the plastic printing process.

[0036] The smoke generated by the printing of the plastic model contains some particulate impurities. When the particulate impurities in the smoke are large or have a high density, it is necessary to increase the power of the dust suction pump 13 to ensure the adsorption effect of the smoke. At this time, the air flow around the plastic model is enhanced. In order to prevent the flowing air from deforming the unformed plastic model, the controller 30 controls the thermoelectric cooling plate group 21 to start. The thermoelectric cooling plate group 21 cools the air inside the insulation tube 20 through the refrigeration end. The insulation tube 20 cools the radiation copper block 24 when the temperature is reduced. The dust suction ring plate 5 drives the cooling block 19 to move through the connecting bolts 27 while changing its position. The cooling block 19 drives the radiation copper block 24 to move from bottom to top along the side wall of the plastic model through the insulation tube 20. The radiation copper block 24 cools and shapes the outside of the printed plastic model through cold radiation, strengthens the ability of the plastic model to resist flowing gas, and prevents the plastic model from being deformed when the dust suction pump 13 increases the power to adsorb the smoke containing particulate impurities in the air.

[0037] Secondly, by means of the dust suction pump 13 arranged above the model, the gas can flow from the area at the bottom of the plastic model where the cooling time is longer into the interior of the heat preservation pipe 20, thereby preventing the particle impurities in the smoke from flowing from top to bottom and adhering to the surface and interior of the unformed plastic model, thereby improving the printing quality of the model to a certain extent;

[0038] When printing a plastic model with text or pattern, rotate the connecting bolt 27, the connecting bolt 27 is unscrewed from the threaded hole 26, the separation electromagnet 28 fits with the separation magnetic block 29, the separation electromagnet 28 is energized to generate magnetism, the separation electromagnet 28 and the separation magnetic block 29 are set with opposite poles, the separation electromagnet 28 absorbs the separation magnetic block 29 through magnetic force, the magnetic field strength between the separation electromagnet 28 and the separation magnetic block 29 is greater than the magnetic field strength between the fixed electromagnet 8 and the sliding magnet 9, when the fixed electromagnet 8 pushes the sliding magnet 9 to rise, the sliding magnet 9 is deformed by the cooling spring 18 to drive the dust suction ring plate 5 away from the plastic model printing area, the distance between the dust suction pump 13 and the printing area is increased, which can effectively control the diffusion of smoke and dust, thereby better handling the smoke and dust generated during the printing process of the plastic model; repeat the above operation when using it next time.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] The above is a description of the present solution and its implementation methods, which is not restrictive. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the creative purpose of the present solution, they should all fall within the protection scope of the present solution.

Claims

1. A 3D printer, comprising a printing table (1), characterized in that: It also comprises a bottom suction type smoke filter mechanism (2) and a wind flow deformation prevention cooling mechanism (16), wherein the bottom suction type smoke filter mechanism (2) is arranged on the upper wall of the printing platform (1), and the wind flow deformation prevention cooling mechanism (16) is arranged on the bottom suction type smoke filter mechanism (2), wherein the bottom suction type smoke filter mechanism (2) comprises a filter mechanism (3) and an adsorption mechanism (10), wherein the filter mechanism (3) is arranged on the upper wall of the printing platform (1), and the adsorption mechanism (10) is arranged on the inner wall of the filter mechanism (3), and the wind flow deformation prevention cooling mechanism (16) comprises a cold source mechanism (17), a radiation mechanism (22) and a separation and combination mechanism (25), wherein the cold source mechanism (17) is arranged on the bottom wall of the filter mechanism (3), the radiation mechanism (22) is arranged on the inner wall of the cold source mechanism (17), and the separation and combination mechanism (25) is arranged on the upper wall of the filter mechanism (3); The filtering mechanism (3) comprises a filter cartridge (4), a dust suction ring plate (5), an exhaust valve (6), a filter layer (7), a fixed electromagnet (8) and a sliding magnet (9); a plurality of groups of the filter cartridges (4) are arranged on the upper wall of the printing table (1); and the dust suction ring plate (5) is slidably arranged between the filter cartridges (4); The adsorption mechanism (10) comprises a pipeline groove (11); The cold source mechanism (17) comprises a cooling spring (18), a cooling block (19), a heat preservation tube (20) and a thermoelectric cooling plate group (21); a plurality of groups of the cooling springs (18) are arranged on the bottom wall of the dust collection ring plate (5); and the cooling block (19) is arranged on a side of the cooling spring (18) away from the dust collection ring plate (5); The heat preservation tube (20) is arranged on a side of the cooling block (19) away from the cooling spring (18), the thermoelectric cooling sheet group (21) is arranged on a side of the cooling block (19) close to the filter cartridge (4), and the cooling end of the thermoelectric cooling sheet group (21) is arranged to penetrate the interior of the heat preservation tube (20); The radiation mechanism (22) comprises radiation slots (23) and radiation copper blocks (24); a plurality of groups of the radiation slots (23) are arranged on the inner wall of the thermal insulation pipe (20); and the radiation copper blocks (24) are arranged inside the radiation slots (23); The separation and combination mechanism (25) comprises a threaded hole (26), a connecting bolt (27), a separation electromagnet (28) and a separation magnetic block (29), and a plurality of groups of the connecting bolts (27) penetrate the upper wall of the dust collection ring plate (5) provided on one side of the pipeline groove (11).

2. A 3D printer according to claim 1, characterized in that: The exhaust valve (6) is connected to one end of the filter cartridge (4) close to the printing table (1), the filter layer (7) is arranged on the inner wall of the filter cartridge (4), the fixed electromagnet (8) is arranged on the upper wall of the printing table (1) outside the filter cartridge (4), and the sliding magnet (9) is arranged on the bottom wall of the dust collection ring plate (5) outside the filter cartridge (4).

3. A 3D printer according to claim 2, characterized in that: The adsorption mechanism (10) further comprises an annular tube (12), a dust suction pump (13), a dust exhaust pipe (14) and a telescopic tube (15); the pipe groove (11) is arranged on the upper wall of the filter cylinder (4); the pipe groove (11) is arranged to be through-connected; and a plurality of groups of the dust suction pumps (13) are arranged to penetrate the inner wall of the dust suction ring plate (5).

4. A 3D printer according to claim 3, characterized in that: The annular tube (12) is arranged inside the pipe groove (11); the dust exhaust pipe (14) is arranged between the exhaust end of the dust suction pump (13) and the annular tube (12); and the telescopic tube (15) passes through the printing table (1) and is arranged between an end of the filter cartridge (4) away from the exhaust valve (6) and the annular tube (12).

5. A 3D printer according to claim 4, characterized in that: The threaded hole (26) is arranged at one end of the cooling block (19) away from the filter cylinder (4), the connecting bolt (27) is threadedly connected to the threaded hole (26), a plurality of groups of separation electromagnets (28) are arranged on the upper wall of the printing table (1), a plurality of groups of separation magnetic blocks (29) are arranged on the bottom wall of the insulation tube (20), and the separation electromagnets (28) and the separation magnetic blocks (29) are arranged opposite to each other.

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