Wire-feed 3D printer for vertical printing of metal materials

Abstract

The present invention relates to a wire-feeding 3D printer for vertically printing metal materials, and relates to the technical field of 3D printing. The printer comprises a frame assembly, wherein a driving assembly is fixedly installed inside the frame assembly, a printing assembly is fixedly installed at an output end of the driving assembly, a temperature control assembly is fixedly installed on one side of an upper end of the frame assembly, a raw material assembly is fixedly installed at one end outside the frame assembly, and a wire-feeding assembly is fixedly installed on the upper end of the printing assembly. Vertical printing avoids tilting, and hot air is ejected through a hot air nozzle through the temperature control assembly, so as to facilitate preheating of the metal wire and the printing surface and to facilitate processing of the printing surface. Cold water is transported to the upper end of the printing head and the inside of a cooling plate, so as to facilitate isolation of the temperature on the metal wire, avoid upward heat conduction, and facilitate cooling of the position after printing, thereby improving the printing effect and cooling speed. The wire-feeding assembly facilitates conveying the metal wire and wiping the surface of the metal wire.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a wire-feeding 3D printer for vertically printing metal materials. Background Art

[0002] 3D printing, a type of rapid prototyping technology, also known as additive manufacturing, is a technology that uses digital model files as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer. With the development of modern technology and technology, adhesive materials are not only limited to powdered metal or plastic. There are also some filamentous raw materials that are bonded after hot melting to complete the printing.

[0003] As disclosed in the publication number CN107839235A, a wire feeder for a 3D printer comprises a wire feeding motor and a wire feeding gear. A wire feeding tube is correspondingly provided on the upper portion of the wire feeding gear, and the lower end of the wire feeding tube is close to the wire feeding gear. A penetrable quick connector is provided on the outside of the wire feeding tube, and the penetrable quick connector is connected to the wire feeding motor through a quick connector fixing seat. A wire feeding bearing is correspondingly provided on the side of the wire feeding gear. The printer consumable wire passes through the wire feeding tube and is close to the wire feeding gear for transmission, which can effectively prevent the remote wire feeder from getting tangled at the wire feeding gear when using 3D printing flexible consumables, and can simultaneously maintain high-speed printing of the 3D printer.

[0004] That is, wire feeding is used for hot melt printing, and in order to achieve the best printing effect, the discharge port is sometimes made perpendicular to the processing surface to avoid tilting and improve the printing effect of the workpiece.

[0005] For example, publication number CN109465450A describes a wire-feeding 3D printer for vertically printing metal materials, comprising a 3D printer body, a metal wire, and a mold cavity. The 3D printer body includes multiple print heads, each positioned above the mold cavity and capable of covering the entire cross-section of the product to be printed. The metal wire is mounted on the print heads. During operation, the multiple print heads move vertically in sync, and the molten metal wire forms a molten pool in the mold cavity, where the molten pool crystallizes into a vertical columnar morphology. This invention alters the crystallization state of the metal material, forming an ideal columnar microstructure in the vertical direction, improving the internal quality of the product. The synchronized operation of multiple print heads enhances production efficiency.

[0006] However, when using it, the hot melt effect is poor when printing, which makes it inconvenient to continue printing. After printing is completed, natural cooling is adopted, and the cooling and solidification effects are slow, which makes it inconvenient to use. When using it, it is inconvenient to process the surface of the processing surface and the metal wire, which makes it inconvenient to use. Summary of the Invention

[0007] In order to overcome the technical defects of the existing technology, the present invention provides a wire-feeding 3D printer for vertically printing metal materials, which facilitates vertical printing, improves printing effects, and facilitates hot melting. During printing, it is convenient to perform surface treatment on the printing surface and the metal wire, and after printing, it increases the cooling speed for easy use.

[0008] The technical solution adopted by the present invention is: a wire-feeding 3D printer for vertically printing metal materials, comprising a frame assembly, a drive assembly fixedly installed inside the frame assembly, a printing assembly fixedly installed on the output end of the drive assembly, a temperature control assembly fixedly installed on one side of the upper end of the frame assembly, and the temperature control assembly is connected to the printing assembly, a raw material assembly fixedly installed on one end of the outer side of the frame assembly, a wire feeding assembly fixedly installed on the upper end of the printing assembly, and one end of the raw material assembly passes through the frame assembly and extends to the interior of the frame assembly, and extends to the interior of the printing assembly through the wire feeding assembly, and It passes through the printing component and extends to the lower end of the printing component. When in use, the raw material component is fixed on the frame component, and one end of the raw material component is extended to the interior of the printing component. The driving component, the printing component and the wire feeding component are controlled by an external control unit to perform printing. When printing, the temperature control component is turned on to facilitate temperature adjustment of the interior of the printing component, facilitate printing processing, accelerate the solidification speed, and facilitate use. When the printing component is discharging material, the discharge is located perpendicular to the processing surface to avoid offset during printing and improve the printing effect.

[0009] Preferably, the frame assembly includes a base plate, and a door-shaped frame plate is fixedly installed on the upper surface of the base plate, the temperature control assembly is fixedly installed on one side of the upper surface of the frame plate, the raw material assembly is fixedly installed on one side of the outer surface of the frame plate, and a printing support plate is fixedly installed in the middle position of the upper surface of the base plate, the drive assembly is fixedly installed on the upper surface of the base plate, and the drive assembly is located inside the frame plate, a soft sleeve is fixedly installed in the middle position of the upper end of the frame plate, and the temperature control assembly and the raw material assembly are extended to the inside of the frame plate through the sleeve, and the drive assembly is fixedly installed on the upper surface of the base plate. The component includes a vertical driving rail, and the vertical driving rail is fixedly installed on both sides of the upper surface of the base plate, the output end between the vertical driving rails is fixedly installed with a horizontal driving rail, the horizontal driving rail is parallel to the printing pallet, and the output end of the horizontal driving rail is fixedly installed with a longitudinal driving rail, and the printing component is fixedly installed at the output end of the longitudinal driving rail. When printing, the position of the printing component can be freely adjusted through the vertical driving rail, the horizontal driving rail and the longitudinal driving rail, and the raw material can be printed on the printing pallet.

[0010] Preferably, the printing assembly includes a mounting plate, and the mounting plate is fixedly mounted on the output end of the longitudinal drive track, a print head is fixedly mounted on one side of the lower surface of the mounting plate, and the wire feeding assembly is fixedly mounted on one side of the upper surface of the mounting plate, the wire feeding assembly is communicated with the print head, a laser head is fixedly mounted on one side of the mounting plate, and the angle between the irradiation direction of the laser head and the extension line of the lower end of the print head is 30°, and one end of the raw material assembly extends to the bottom of the print head, the laser head irradiates the laser on one end of the raw material assembly, a water storage chamber is provided at the upper end of the interior of the print head, and a water inlet joint is fixedly mounted on one side of the water storage chamber, the water supply pipe is communicated with the water inlet joint, a water outlet joint is fixedly mounted on the other side of the water storage chamber, and the water outlet joint is communicated with the return pipe, a cooling plate is fixedly mounted on one side of the laser head, and The cooling plate is a hollow structure, with capillaries fixedly installed on both sides of the cooling plate, and the other end of the capillary is connected to the water storage chamber, and the capillaries on both sides are respectively installed on the print head near the water outlet joint and the water inlet joint, a hot air cavity is opened at the lower end of the interior of the print head, and an air inlet joint is fixedly installed on the print head on one side of the hot air cavity, the air inlet joint is connected to the air outlet pipe, and a hot air nozzle is fixedly installed on the other side of the print head, and the hot air nozzle is connected to the hot air cavity, through the laser head, it is convenient to melt the metal wire, so that the metal wires are bonded to complete printing, and during printing, through the hot air cavity, it is convenient to preheat the metal wire, through the hot air nozzle, it is convenient to preheat the printing surface, and through the cooling plate, it is convenient to cool the printing completion position to improve the solidification effect.

[0011] Preferably, the temperature control component includes a regulating box, and the regulating box is fixedly mounted on one side of the upper surface of the frame plate, a partition is fixedly mounted in the middle position of the interior of the regulating box, and the partition divides the interior of the regulating box into a hot chamber and a cold chamber, a semiconductor refrigeration plate is embedded in the middle position of the partition, and the cold end of the semiconductor refrigeration plate is located inside the cold chamber, and the hot end of the semiconductor refrigeration plate is located inside the hot chamber, and an air blowing fan is fixedly mounted at both ends of one side of the outer side of the regulating box, the output end of the air blowing fan is connected with the hot chamber and the cold chamber, an air outlet pipe is fixedly mounted on one side of the hot chamber, and one end of the air outlet pipe extends to the interior of the frame plate through the sleeve and is connected with the print head, a heat exchange pipe is fixedly mounted at one end of the cold chamber, and the upper surface of the frame plate is A water tank is fixedly installed on the side, an exhaust pipe is fixedly installed on the upper end of the water tank, the heat exchange pipe is connected with the exhaust pipe, and the heat exchange pipe is distributed in a serpentine shape inside the water tank, a circulation pump is fixedly installed on the upper surface of the frame plate on one side of the water tank, and the input end of the circulation pump is connected with the water tank, a water supply pipe is fixedly installed on the output end of the circulation pump, and a return pipe is fixedly installed on the other side of the water tank, and the water supply pipe and the return pipe are both extended to the interior of the frame plate through the sleeve, and the water supply pipe and the return pipe are both connected to the print head, and the semiconductor refrigeration plate is used to facilitate the adjustment of the temperature inside the hot chamber and the cold chamber, and the heat exchange pipe is used to facilitate the cooling of the water inside the water tank, and the cold water is circulated through the circulation pump.

[0012] Preferably, the raw material assembly includes a wire reel, and the wire reel is fixedly mounted on one side of the outer surface of the frame plate. Metal wire is wound inside the wire reel, and the metal wire extends to the inside of the frame plate through the sleeve, and extends to the inside of the print head through the wire feeding assembly. The wire reel facilitates the storage of the metal wire.

[0013] Preferably, the wire feeding assembly includes a wire feeding box, and hub motors are fixedly installed on both sides of the interior of the wire feeding box, and the outer surface of the hub motor is sleeved with a wire feeding roller made of soft material, and a threaded tube is fixedly installed on the upper end of the wire feeding box, a threaded cap is threadedly connected to the threaded tube, and a wiping cotton is fixedly installed inside the threaded cap, the metal wire passes through the wiping cotton and extends to the interior of the print head through the wire feeding roller, and the metal wire is conveniently transported through the wire feeding roller, and the surface of the metal wire is conveniently processed through the wiping cotton, which is convenient for cleaning.

[0014] The beneficial effects of the present invention are as follows: when in use, vertical printing is performed to avoid tilting, and hot air is delivered to the inner lower end of the print head through the temperature control component and ejected through the hot air nozzle, which is convenient for preheating the metal wire and the printing surface, and convenient for processing the printing surface to avoid the presence of fine dust, and by delivering cold water to the inner upper end of the print head and the inside of the cooling plate, it is convenient to isolate the temperature on the metal wire to avoid upward heat conduction, and it is convenient to cool the position after printing through the principle of thermal radiation, thereby improving the printing effect and cooling speed, and through the wire feeding component, it is convenient to transport the metal wire and wipe the surface of the metal wire for convenient processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle.

[0017] Figure 3 It is a structural schematic diagram of the frame assembly in the present invention.

[0018] Figure 4 It is a schematic diagram of the structure of the printing component and the wire feeding component in the present invention.

[0019] Figure 5 It is a structural schematic diagram of the printing component in the present invention.

[0020] Figure 6 This is a schematic structural diagram of the wire feeding assembly in the present invention after front section.

[0021] Figure 7 It is a schematic diagram of the structure of the temperature control component after partial cross-section in the present invention.

[0022] Figure 8 It is a schematic structural diagram of the wiping cotton in the present invention.

[0023] Explanation of reference numerals: In the figure: 1, frame assembly; 101, bottom plate; 102, frame plate; 103, printing support plate; 104, sleeve; 2, drive assembly; 201, vertical drive track; 202, horizontal drive track; 203, longitudinal drive track; 3, printing assembly; 301, mounting plate; 302, print head; 303, laser head; 304, water storage chamber; 305, water inlet joint; 306, water outlet joint; 307, cooling plate; 308, capillary; 309, hot air chamber; 3010, air inlet joint; 3011, hot air spray Head; 4. Temperature control component; 401. Adjustment box; 402. Partition; 403. Hot chamber; 404. Cold chamber; 405. Semiconductor refrigeration plate; 406. Air blowing fan; 407. Exhaust pipe; 408. Heat exchange pipe; 409. Water tank; 4010. Exhaust pipe; 4011. Circulation pump; 4012. Water supply pipe; 4013. Return pipe; 5. Raw material component; 501. Wire reel; 502. Metal wire; 601. Wire feeding box; 602. Hub motor; 603. Wire feeding roller; 604. Threaded pipe; 605. Threaded cap; 606. Wiping cotton. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-8 As shown, this embodiment provides a wire-feeding 3D printer for vertically printing metal materials, including a frame assembly 1, and a driving assembly 2 is fixedly installed inside the frame assembly 1, a printing assembly 3 is fixedly installed on the output end of the driving assembly 2, a temperature control assembly 4 is fixedly installed on one side of the upper end of the frame assembly 1, and the temperature control assembly 4 is connected to the printing assembly 3, a raw material assembly 5 is fixedly installed on one end of the outer side of the frame assembly 1, a wire feeding assembly is fixedly installed on the upper end of the printing assembly 3, and one end of the raw material assembly 5 passes through the frame assembly 1 and extends to the interior of the frame assembly 1, and extends to the interior of the printing assembly 3 through the wire feeding assembly, and It passes through the printing component 3 and extends to the lower end of the printing component 3. When in use, the raw material component 5 is fixed on the frame component 1, and one end of the raw material component 5 is extended to the inside of the printing component 3. The driving component 2, the printing component 3 and the wire feeding component are controlled by the external control unit to perform printing. When printing, the temperature control component 4 is turned on to facilitate temperature adjustment of the inside of the printing component 3, facilitate printing processing, accelerate the solidification speed, and facilitate use. When the printing component 3 is discharging the material, the discharge is located in a vertical state with the processing surface to avoid offset during printing and improve the printing effect.

[0026] The frame assembly 1 includes a base plate 101, and a door-shaped frame plate 102 is fixedly installed on the upper surface of the base plate 101, the temperature control assembly 4 is fixedly installed on one side of the upper surface of the frame plate 102, the raw material assembly 5 is fixedly installed on one side of the outer surface of the frame plate 102, and a printing support plate 103 is fixedly installed in the middle position of the upper surface of the base plate 101, the drive assembly 2 is fixedly installed on the upper surface of the base plate 101, and the drive assembly 2 is located inside the frame plate 102, a soft sleeve 104 is fixedly installed in the middle position of the upper end of the frame plate 102, and the temperature control assembly 4 and the raw material assembly 5 are both connected through the sleeve 104. Extending to the interior of the frame 102, the driving component 2 includes a vertical driving rail 201, and the vertical driving rail 201 is fixedly installed on both sides of the upper surface of the base plate 101, and the output end between the vertical driving rails 201 is fixedly installed with a horizontal driving rail 202, the horizontal driving rail 202 is parallel to the printing tray 103, and the output end of the horizontal driving rail 202 is fixedly installed with a longitudinal driving rail 203, and the printing component 3 is fixedly installed at the output end of the longitudinal driving rail 203. Through the driving component 2, the position of the printing component 3 can be freely adjusted to facilitate printing.

[0027] The printing assembly 3 includes a mounting plate 301, and the mounting plate 301 is fixedly mounted on the output end of the longitudinal drive track 203. A print head 302 is fixedly mounted on one side of the lower surface of the mounting plate 301, and a wire feeding assembly is fixedly mounted on one side of the upper surface of the mounting plate 301. The wire feeding assembly is connected to the print head 302. A laser head 303 is fixedly mounted on one side of the mounting plate 301, and the angle between the irradiation direction of the laser head 303 and the extension line of the lower end of the print head 302 is 30 degrees, and one end of the raw material assembly 5 extends to the bottom of the print head 302. The laser head 303 irradiates the laser on one end of the raw material component 5. A water storage chamber 304 is provided at the upper end of the interior of the print head 302. A water inlet joint 305 is fixedly installed on one side of the water storage chamber 304. The water supply pipe 4012 is connected to the water inlet joint 305. A water outlet joint 306 is fixedly installed on the other side of the water storage chamber 304. The water outlet joint 306 is connected to the return pipe 4013. A cooling plate 307 is fixedly installed on one side of the laser head 303. The cooling plate 307 is a hollow structure. Capillaries 306 are fixedly installed on both sides of the cooling plate 307. 08, and the other end of the capillary tube 308 is connected to the water storage chamber 304, and the capillaries 308 on both sides are respectively installed on the print head 302 near the water outlet joint 306 and the water inlet joint 305. A hot air cavity 309 is opened at the lower end of the interior of the print head 302, and an air inlet joint 3010 is fixedly installed on one side of the hot air cavity 309 of the print head 302. The air inlet joint 3010 is connected to the air outlet pipe 407, and a hot air nozzle 3011 is fixedly installed on the other side of the print head 302. The hot air nozzle 3011 is connected to the hot air cavity 309. When printing, the metal wire 502 is laser-melted by using the laser head 303, so that the metal wire 502 is in a molten state, and then it is convenient to stick to the printing surface for printing. When printing, the hot air cavity 309 and the hot air nozzle 3011 are used to preheat the metal wire 502 and the printing surface, and the water storage cavity 304 is used to isolate the heat to prevent the heat from being conducted to the wire feeding assembly. The cooling plate 307 is used to cool the position after printing, thereby improving the solidification speed and effect.

[0028] The temperature control component 4 includes a regulating box 401, and the regulating box 401 is fixedly installed on one side of the upper surface of the frame plate 102. A partition 402 is fixedly installed in the middle position of the regulating box 401, and the partition 402 divides the interior of the regulating box 401 into a hot chamber 403 and a cold chamber 404. A semiconductor cooling plate 405 is embedded in the middle position of the partition 402, and the cold end of the semiconductor cooling plate 405 is located inside the cold chamber 404, and the hot end of the semiconductor cooling plate 405 is located inside the hot chamber 404. The inside of the chamber 403 and the two ends of the outside of the regulating box 401 are fixedly installed with air blowing fans 406. The output end of the air blowing fan 406 is connected to the hot chamber 403 and the cold chamber 404. An air outlet pipe 407 is fixedly installed on one side of the hot chamber 403, and one end of the air outlet pipe 407 extends through the sleeve 104 to the inside of the frame plate 102 and is connected to the print head 302. A heat exchange pipe 408 is fixedly installed on one end of the cold chamber 404, and a water heater is fixedly installed on one side of the upper surface of the frame plate 102. The upper end of the water tank 409 is fixedly installed with an exhaust pipe 4010, the heat exchange pipe 408 is connected to the exhaust pipe 4010, and the heat exchange pipe 408 is distributed in a serpentine shape inside the water tank 409. The upper surface of the frame plate 102 is located on one side of the water tank 409 and is fixedly installed with a circulation pump 4011, and the input end of the circulation pump 4011 is connected to the water tank 409, and the output end of the circulation pump 4011 is fixedly installed with a water supply pipe 4012. The other side of the water tank 409 is fixedly installed. There is a return pipe 4013, and the water supply pipe 4012 and the return pipe 4013 are extended to the inside of the frame plate 102 through the sleeve 104, and the water supply pipe 4012 and the return pipe 4013 are both connected to the print head 302. Through the semiconductor refrigeration plate 405, it is convenient to adjust the temperature inside the hot chamber 403 and the cold chamber 404, which is convenient for temperature control, and through the water tank 409, it is convenient to cool the water, so that hot air and cold water are transported to the inside of the printing component 3 for temperature control.

[0029] The raw material component 5 includes a wire reel 501, and the wire reel 501 is fixedly installed on one side of the outer surface of the frame plate 102. A metal wire 502 is wound inside the wire reel 501, and the metal wire 502 extends to the inside of the frame plate 102 through the sleeve 104, and extends to the inside of the print head 302 through the wire feeding assembly. The wire reel 501 facilitates the winding and unwinding of the metal wire 502.

[0030] The wire feeding assembly includes a wire feeding box 601, and hub motors 602 are fixedly installed on both sides of the interior of the wire feeding box 601, and the outer surface of the hub motor 602 is sleeved with a wire feeding roller 603 made of soft material, and a threaded tube 604 is fixedly installed on the upper end of the wire feeding box 601, and a threaded cap 605 is threadedly connected to the threaded tube 604, and a wiping cotton 606 is fixedly installed inside the threaded cap 605. The metal wire 502 passes through the wiping cotton 606 and extends to the interior of the print head 302 through the wire feeding roller 603. The wiping cotton 606 facilitates wiping the surface of the metal wire 502 when the metal wire 502 is transported.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wire-feed 3D printer for vertically printing metal materials, characterized by: The invention comprises a frame assembly (1), wherein a driving assembly (2) is fixedly mounted inside the frame assembly (1), a printing assembly (3) is fixedly mounted on the output end of the driving assembly (2), a temperature control assembly (4) is fixedly mounted on one side of the upper end of the frame assembly (1), and the temperature control assembly (4) is connected to the printing assembly (3), a raw material assembly (5) is fixedly mounted on one end of the outer side of the frame assembly (1), a wire feeding assembly is fixedly mounted on the upper end of the printing assembly (3), and one end of the raw material assembly (5) extends to the lower end of the printing assembly (3); The printing assembly (3) comprises a mounting plate (301), a printing head (302) being fixedly mounted on one side of a lower surface of the mounting plate (301), and the wire feeding assembly being fixedly mounted on one side of an upper surface of the mounting plate (301), the wire feeding assembly being in communication with the printing head (302), and a laser head (303) being fixedly mounted on one side of the mounting plate (301); The temperature control component (4) comprises a regulating box (401), a partition (402) is fixedly installed at a middle position inside the regulating box (401), and the partition (402) divides the interior of the regulating box (401) into a hot chamber (403) and a cold chamber (404), a semiconductor refrigeration plate (405) is embedded and installed at a middle position of the partition (402), and the cold end of the semiconductor refrigeration plate (405) is located inside the cold chamber (404), and the hot end of the semiconductor refrigeration plate (405) is located inside the hot chamber (403), and an air blowing fan (406) is fixedly installed at both ends of one side of the outside of the regulating box (401), and the output end of the air blowing fan (406) is respectively connected to the hot chamber (403) and the cold chamber (404), and an air outlet pipe (407) is fixedly installed on one side of the hot chamber (403), and one end of the air outlet pipe (407) is connected to the print head (302); A heat exchange tube (408) is fixedly mounted on one end of the cold chamber (404), and a water tank (409) and a circulation pump (4011) are fixedly mounted on one side of the upper surface of the frame assembly (1); an exhaust pipe (4010) is fixedly mounted on the upper end of the water tank (409); the heat exchange tube (408) is connected to the exhaust pipe (4010), and the heat exchange tube (408) is distributed in a serpentine shape inside the water tank (409); the input end of the circulation pump (4011) is connected to the water tank (409); a water supply pipe (4012) is fixedly mounted on the output end of the circulation pump (4011); a water return pipe (4013) is fixedly mounted on one side of the water tank (409), and both the water supply pipe (4012) and the water return pipe (4013) are connected to the print head (302); A water storage chamber (304) is provided at the upper end of the interior of the print head (302), and a water inlet joint (305) is fixedly installed on one side of the water storage chamber (304), and the water supply pipe (4012) is connected to the water inlet joint (305). A water outlet joint (306) is fixedly installed on the other side of the water storage chamber (304), and the water outlet joint (306) is connected to the return pipe (4013). A cooling plate (307) is fixedly installed on one side of the laser head (303), and the cooling plate (307) is a hollow structure. One end of a capillary tube (308) is fixedly mounted on both sides of the cooling plate (307), and the other end of the capillary tube (308) is communicated with the water storage chamber (304). A hot air chamber (309) is provided at the lower end of the interior of the print head (302), and an air inlet connector (3010) is fixedly mounted on one side of the hot air chamber (309) on the print head (302). The air inlet connector (3010) is communicated with the air outlet pipe (407), and a hot air nozzle (3011) is fixedly mounted on the other side of the print head (302).

2. The wire-feeding 3D printer for vertically printing metal materials according to claim 1, characterized in that: The frame assembly (1) includes a base plate (101), and a door-shaped frame plate (102) is fixedly mounted on the upper surface of the base plate (101), the temperature control assembly (4) is fixedly mounted on one side of the upper surface of the frame plate (102), the raw material assembly (5) is fixedly mounted on one side of the outer surface of the frame plate (102), and a printing support plate (103) is fixedly mounted in the middle position of the upper surface of the base plate (101), the driving assembly (2) is located inside the frame plate (102), and a soft sleeve (104) is fixedly mounted in the middle position of the upper end of the frame plate (102).

3. The wire-feeding 3D printer for vertically printing metal materials according to claim 2, characterized in that: The driving assembly (2) comprises vertical driving rails (201), and the vertical driving rails (201) are fixedly mounted on both sides of the upper surface of the base plate (101); a transverse driving rail (202) is fixedly mounted on the output end between the vertical driving rails (201), and a longitudinal driving rail (203) is fixedly mounted on the output end of the transverse driving rail (202); and the printing assembly (3) is fixedly mounted on the output end of the longitudinal driving rail (203).

4. The wire-feeding 3D printer for vertically printing metal materials according to claim 2, characterized in that: The raw material assembly (5) comprises a wire reel (501), and the wire reel (501) is fixedly mounted on one side of the outer surface of the frame plate (102), and a metal wire (502) is wound inside the wire reel (501).

5. The wire-feeding 3D printer for vertically printing metal materials according to claim 4, characterized in that: The wire feeding assembly comprises a wire feeding box (601), and hub motors (602) are fixedly installed on both sides of the interior of the wire feeding box (601), and a wire feeding roller (603) made of a soft material is sleeved on the outer surface of the hub motor (602), and a threaded tube (604) is fixedly installed on the upper end of the wire feeding box (601), a threaded cap (605) is threadedly connected to the threaded tube (604), and a wiping cotton (606) is fixedly installed inside the threaded cap (605), and the metal wire (502) passes through the wiping cotton (606) and extends to the interior of the print head (302) through the wire feeding roller (603).

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