3D printing photosensitive resin wire melting device

Abstract

The invention discloses a 3D printing photosensitive resin wire melting device, and relates to 3D printing, the 3D printing photosensitive resin wire melting device comprises a melting box, a photosensitive resin wire main body is slidably inserted in the melting box, two guide rods are symmetrically and fixedly mounted in the melting box, and two U-shaped frames are symmetrically and slidably sleeved on the two guide rods; a rotating roller is rotationally arranged on the U-shaped frame, C-shaped wiping pieces are fixedly installed on the periphery of the rotating roller, one C-shaped wiping piece abuts against the outer surface of the photosensitive resin wire rod body, a motor is fixedly installed on one side of the U-shaped frame, and a driving shaft of the motor is in transmission connection with one end of the rotating roller; by starting the motor, the rotating roller can rotate to drive the C-shaped wiping piece to which dust adheres to rotate by 180 degrees, so that the clean C-shaped wiping piece can abut against the photosensitive resin wire rod body again, the problem that dust adheres to the photosensitive resin wire rod body again when the photosensitive resin wire rod body is cleaned subsequently can be solved, and the cleaning effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a 3D printing photosensitive resin wire melting device. Background Art

[0002] Photosensitive resin, also known as UV resin, is composed of polymer monomers and prepolymers. It is a common 3D printing material, generally in liquid form. Adding light (ultraviolet) initiators or photosensitizers and irradiating ultraviolet rays of a certain wavelength can trigger the polymerization reaction of the copolymer, so that the liquid photosensitive resin material is cured. This process is called the process of liquid photocuring resin and is often used in stereolithography 3D printing technology. Currently, the photosensitive resin consumables used in 3D printing are mostly reel-type wires. The photosensitive resin wires are usually heated and melted, and the melted photosensitive resin is sprayed out from a print head with a nozzle, deposited on the production board and accumulated layer by layer, and finally cured into a finished product.

[0003] In order to ensure the cleanliness of the surface of the photosensitive resin wire and to ensure that the melted liquid does not contain excessive impurities, the existing 3D printing photosensitive resin wire melting device usually uses a wiping cloth to fit the surface of the photosensitive resin wire, and uses the relative friction between the photosensitive resin wire and the wiping cloth when it moves to wipe off the dust on the surface. However, after the wiping cloth wipes the dust on the photosensitive resin wire, the dust will adhere to the wiping cloth, which will cause the dust to adhere to the surface of the photosensitive resin wire again after wiping it, resulting in poor cleaning effect.

[0004] To this end, we designed a 3D printing photosensitive resin wire melting device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a 3D printing photosensitive resin wire melting device to solve the problems raised in the above background technology.

[0006] To solve the above technical problems, the present invention provides a 3D printing photosensitive resin wire melting device, comprising a melting box, a photosensitive resin wire body is slidably inserted in the melting box, two guide rods are symmetrically fixedly installed in the melting box, two U-shaped frames are symmetrically and slidably sleeved on the two guide rods, a rotating roller is rotatably arranged on the U-shaped frame, C-shaped wiping members are fixedly installed on all sides of the rotating roller, one of the C-shaped wiping members is against the outer surface of the photosensitive resin wire body, a motor is fixedly installed on one side of the U-shaped frame, the driving shaft of the motor is transmission-connected to one end of the rotating roller, a water storage tank is fixedly installed on one side of the U-shaped frame, an iron sheet is fixedly installed on one side of the water storage tank, two electromagnets are symmetrically installed in the melting box, the electromagnets cooperate with the iron sheet to abut each other, two return springs are movably sleeved on the guide rods, and the two ends of the return spring are respectively fixedly connected to the U-shaped frame and the inner wall of the melting box.

[0007] Furthermore, a waterproof film is provided on the outer surface of the return spring, and the return spring is made of stainless steel, which can effectively slow down the corrosion rate of the return spring, thereby helping to extend the service life of the return spring.

[0008] Furthermore, a nozzle is provided on the U-shaped frame, and the nozzle is located on one side of the C-shaped wiping member. An L-shaped tube is fixedly plugged on the nozzle, and the other end of the L-shaped tube is fixedly plugged into the water storage tank. A partition is fixedly installed in the water storage tank, and an air inlet is opened in the partition. A one-way air inlet valve and a first solenoid valve are provided in the air inlet, and the one-way air inlet valve is located below the first solenoid valve. A first electric push rod is provided on the top of the water storage tank, and a piston is provided at the driving end of the first electric push rod. The plug is slidably connected in the water tank, and air vents are provided on the rear side and the top of the water tank. Clean water is filled in the water tank. The first solenoid valve and the first electric push rod are opened, so that the driving end of the first electric push rod is extended and retracted to drive the piston to reciprocate in the water tank. External air can be sucked into the water tank through the air vents on the rear side of the water tank, and then the air is pushed under the partition in cooperation with the piston, so that the air pressurizes the water under the partition and sprays it through the nozzle onto the C-type wiper with dust adhered to it, thereby achieving the effect of flushing the C-type wiper.

[0009] Furthermore, a C-shaped frame is provided on the top of the U-shaped frame, and a second electric push rod is fixedly installed on the top of the C-shaped frame, and a C-shaped scraper is provided on the driving end of the second electric push rod. One side of the C-shaped wiping member below the C-shaped scraper is slidably connected. During the process of flushing the C-shaped wiping member, the second electric push rod is turned on, so that the driving end of the second electric push rod is extended to drive the C-shaped scraping member to move downward and scrape off the dirty water on the C-shaped wiping member, thereby achieving the effect of cleaning the C-shaped wiping member, thereby indirectly improving the cleaning effect of the photosensitive resin wire body.

[0010] Furthermore, a jet head is obliquely arranged on one side of the water storage tank, and the jet head faces the C-type wiping piece. A second solenoid valve is arranged in the water storage tank, and the second solenoid valve is connected to the jet head. After rinsing the C-type wiping piece, the first solenoid valve is closed and the second solenoid valve is opened, and then the first electric push rod is continuously opened to allow air to be injected into the second solenoid valve and the jet head, so as to air-dry the wet C-type wiping piece, accelerate the drying rate of the C-type wiping piece, and thus avoid delaying the cleaning of the photosensitive resin wire body, thereby further improving the cleaning effect of the photosensitive resin wire body.

[0011] Furthermore, there are multiple nozzles and multiple air jets, and the width of both ends formed by the combination of the multiple nozzles and multiple air jets is equal to the width of the C-shaped wiper.

[0012] Furthermore, a water retaining member is fixedly installed in the melting box, and two drainage plates are symmetrically installed on the top of the water retaining member. Drain pipes are fixedly connected on both sides of the melting box. The sewage will flow out of the designated position of the drain pipe along the drainage plate, thereby preventing the sewage from adhering to the photosensitive resin wire body.

[0013] Furthermore, two limiting rollers are symmetrically rotatably connected in the melting box, and the limiting rollers are against the main body of the photosensitive resin wire. A motor is also arranged on the rear side of the melting box, and the driving shaft of the motor is transmission-connected to one end of one of the limiting rollers. Two heating plates are symmetrically arranged in the melting box, and electric heating wires are embedded in the heating plates.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By turning on the motor, the rotating roller can rotate to drive the C-shaped wiping piece with dust adhered to it to rotate 180°, so that the clean C-shaped wiping piece and the photosensitive resin wire body can be offset against each other again, which can avoid the problem of dust re-adhering to the photosensitive resin wire body during subsequent cleaning, thereby improving the cleaning effect.

[0015] 2. By opening the first solenoid valve and the first electric push rod, the driving end of the first electric push rod can be extended and retracted to drive the piston to reciprocate in the water tank to suck outside air into the water tank through the vent hole on the rear side of the water tank, and then cooperate with the piston to push the air under the partition, so that the air pressurizes the water under the partition and sprays it through the nozzle on the C-type wiping piece with dust adhered, thereby achieving the effect of flushing the C-type wiping piece. By opening the second electric push rod, the driving end of the second electric push rod can be extended to drive the C-type scraping piece to move downward and scrape the dirty water on the C-type wiping piece, thereby achieving the effect of cleaning the C-type wiping piece, thereby indirectly improving the cleaning effect of the photosensitive resin wire body.

[0016] 3. By closing the first solenoid valve and opening the second solenoid valve, and then continuing to open the first electric push rod, air can be injected into the second solenoid valve and the nozzle, so as to dry the wet C-type wiper and accelerate the drying rate of the C-type wiper, thereby avoiding delays in cleaning the photosensitive resin wire body, thereby further improving the cleaning effect of the photosensitive resin wire body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the interior of the melting box of the present invention in a half-section view;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention in a half-sectioned oblique internal view;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall exterior of the present invention;

[0020] Figure 4It is a schematic diagram of the three-dimensional structure of the outer part of the iron sheet of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the exterior of the C-shaped frame of the present invention;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the interior of the water storage tank of the present invention in a half-section view.

[0023] In the figure: 1. melting box; 2. photosensitive resin wire body; 3. guide rod; 4. U-shaped frame; 5. rotating roller; 6. C-shaped wiping member; 7. motor; 8. water storage tank; 9. iron sheet; 10. electromagnet; 11. reset spring; 12. nozzle; 13. L-shaped pipe; 14. partition; 15. air inlet; 16. one-way air inlet valve; 17. first solenoid valve; 18. first electric push rod; 19. piston; 20. C-shaped frame; 21. second electric push rod; 22. C-shaped scraper; 23. second solenoid valve; 24. nozzle; 25. water retaining member; 26. drainage plate; 27. drain pipe; 28. limit roller; 29. ​​heating plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0026] See also Figure 1-6 The present invention provides a technical solution: a 3D printing photosensitive resin wire melting device, comprising a melting box 1, a photosensitive resin wire body 2 is slidably inserted in the melting box 1, two guide rods 3 are symmetrically fixedly installed in the melting box 1, two U-shaped frames 4 are symmetrically slidably sleeved on the two guide rods 3, a rotating roller 5 is rotatably arranged on the U-shaped frame 4, and C-shaped wiping members 6 are fixedly installed on the rotating roller 5 on all sides, one of the C-shaped wiping members 6 is against the outer surface of the photosensitive resin wire body 2, a motor 7 is fixedly installed on one side of the U-shaped frame 4, and the driving shaft of the motor 7 is transmission-connected with one end of the rotating roller 5, a water storage tank 8 is fixedly installed on one side of the U-shaped frame 4, and an iron sheet 9 is fixedly installed on one side of the water storage tank 8, two electromagnets 10 are symmetrically installed in the melting box 1, and the electromagnets 10 cooperate with the iron sheet 9 to abut against each other, two return springs 11 are movably sleeved on the guide rods 3, and the two ends of the return spring 11 are respectively fixedly connected to the U-shaped frame 4 and the inner wall of the melting box 1.

[0027] In specific implementation, before melting the photosensitive resin wire body 2, the electromagnet 10 needs to be turned off. At this time, the reset spring 11 will push the U-shaped frame 4 away due to its own elastic force and make one of the C-shaped wiping pieces 6 against the photosensitive resin wire body 2, so that the photosensitive resin wire body 2 can rub against the C-shaped wiping piece 6 during transportation, so that the C-shaped wiping piece 6 can easily wipe the dust on the surface of the photosensitive resin wire body 2. In addition, when there is a lot of dust adhering to the C-shaped wiping piece 6, the electromagnet 10 is turned on, and then the electromagnet 10 is energized and attracts the iron sheet 9, the water tank 8 and the C-shaped wiping piece 6 to separate from the photosensitive resin wire body 2, and then the motor 7 is turned on, so that the rotating roller 5 can rotate and drive the C-shaped wiping piece 6 with dust adhering to it to rotate 180°, so that the clean C-shaped wiping piece 6 can be against the photosensitive resin wire body 2 again, which can avoid the problem of dust adhering to it again when the photosensitive resin wire body 2 is cleaned later, thereby improving the cleaning effect.

[0028] See also Figure 1-6 As shown, the outer surface of the return spring 11 is covered with a waterproof film, and the return spring 11 is made of stainless steel, which can effectively slow down the corrosion rate of the return spring 11, thereby helping to extend the service life of the return spring 11.

[0029] Two limit rollers 28 are symmetrically rotated and connected in the melting box 1, and the limit rollers 28 are against the photosensitive resin wire body 2. A motor is also arranged at the rear side of the melting box 1, and the driving shaft of the motor is transmission-connected to one end of one of the limit rollers 28. Two heating plates 29 are symmetrically arranged in the melting box 1, and electric heating wires are embedded in the heating plates 29. The photosensitive resin wire body 2 is inserted into the melting box 1 and located between the two limit rollers 28, and the motor and the heating plate 29 are turned on, so that the heating plate 29 can generate heat and transfer the heat to the photosensitive resin wire body 2 to melt it and transport it to the printing nozzle connected below. At the same time, the two limit rollers 28 rotate and transport the photosensitive resin wire body 2 downward, which can conveniently achieve the effect of melting the photosensitive resin wire.

[0030] See also Figure 1-6 A nozzle 12 is provided on the U-shaped frame 4, and the nozzle 12 is located on one side of the C-shaped wiping member 6. An L-shaped tube 13 is fixedly plugged into the nozzle 12, and the other end of the L-shaped tube 13 is fixedly plugged into the water storage tank 8. A partition 14 is fixedly installed in the water storage tank 8, and an air inlet 15 is opened in the partition 14. A one-way air inlet valve 16 and a first solenoid valve 17 are provided in the air inlet 15. The one-way air inlet valve 16 is located below the first solenoid valve 17. The top of the water storage tank 8 is provided with a first solenoid valve 17. An electric push rod 18, a piston 19 is provided at the driving end of the first electric push rod 18, the piston 19 is slidably connected in the water tank 8, the rear side and the top of the water tank 8 are provided with vents, the water tank 8 is filled with clean water, a C-shaped frame 20 is provided on the top of the U-shaped frame 4, a second electric push rod 21 is fixedly installed on the top of the C-shaped frame 20, a C-shaped scraper 22 is provided at the driving end of the second electric push rod 21, and one side of the C-shaped wiping member 6 below the C-shaped scraper 22 is slidably connected.

[0031] During specific implementation, on the basis of the above implementation, the first solenoid valve 17 and the first electric push rod 18 are opened, so that the driving end of the first electric push rod 18 is extended and retracted to drive the piston 19 to reciprocate in the water tank 8, and the outside air can be sucked into the water tank 8 through the vent hole on the rear side of the water tank 8, and then the piston 19 is cooperated to push the air under the partition 14, so that the air pressurizes the water under the partition 14 and sprays it on the C-type wiping member 6 with dust adhered through the nozzle 12, thereby achieving the effect of flushing the C-type wiping member 6. In addition, in the process of flushing the C-type wiping member 6, the second electric push rod 21 is opened, so that the driving end of the second electric push rod 21 is extended to drive the C-type scraper 22 to move downward and scrape the dirty water on the C-type wiping member 6, so as to achieve the effect of cleaning the C-type wiping member 6, thereby indirectly improving the cleaning effect of the photosensitive resin wire body 2.

[0032] See also Figure 1-6, a nozzle 24 is tiltedly arranged on one side of the water storage tank 8, and the nozzle 24 faces the C-type wiping member 6. A second solenoid valve 23 is arranged in the water storage tank 8, and the second solenoid valve 23 is connected to the nozzle 24. The number of nozzles 12 and nozzles 24 is multiple, and the width of both ends formed by the combination of multiple nozzles 12 and nozzles 24 is equal to the width of the C-type wiping member 6. After flushing the C-type wiping member 6, close the first solenoid valve 17 and open the second solenoid valve 23, and then continue to open the first electric push rod 18, so that air can be injected into the second solenoid valve 23 and the nozzle 24, and the wet C-type wiping member 6 can be air-dried, and the drying rate of the C-type wiping member 6 can be accelerated, thereby avoiding delay in cleaning the photosensitive resin wire body 2, thereby further improving the cleaning effect of the photosensitive resin wire body 2.

[0033] See also Figure 1-6 A water retaining member 25 is fixedly installed in the melting box 1, and two drainage plates 26 are symmetrically installed on the top of the water retaining member 25, and drainage pipes 27 are fixedly plugged on both sides of the melting box 1. The sewage will flow out of the position specified by the drainage pipe 27 along the drainage plate 26, which can prevent the sewage from adhering to the photosensitive resin wire body 2.

[0034] Working principle: When in use, firstly, all the electrical appliances involved in the printing photosensitive resin wire melting device are connected to an external power supply, then the photosensitive resin wire body 2 is inserted into the melting box 1 and is located between the two limit rollers 28, and the motor and the heating plate 29 are turned on, so that the heating plate 29 can generate heat and transfer the heat to the photosensitive resin wire body 2 to melt it and transport it to the printing nozzle connected below, and at the same time, the two limit rollers 28 rotate and transport the photosensitive resin wire body 2 downward, which can conveniently achieve the effect of melting the photosensitive resin wire;

[0035] In addition, before the above operation, the electromagnet 10 needs to be turned off. At this time, the reset spring 11 will push the U-shaped frame 4 away due to its own elastic force and make one of the C-shaped wiping pieces 6 against the photosensitive resin wire body 2, so that the photosensitive resin wire body 2 can rub against the C-shaped wiping piece 6 during transportation, so that the C-shaped wiping piece 6 can easily wipe the dust on the surface of the photosensitive resin wire body 2. In addition, when there is a lot of dust adhering to the C-shaped wiping piece 6, the electromagnet 10 is turned on, and then the electromagnet 10 is energized and attracts the iron sheet 9, the water tank 8 and the C-shaped wiping piece 6 to separate from the photosensitive resin wire body 2, and then the motor 7 is turned on, so that the rotating roller 5 can rotate and drive the C-shaped wiping piece 6 with dust adhering to it to rotate 180°, so that the clean C-shaped wiping piece 6 can be against the photosensitive resin wire body 2 again, which can avoid the problem of dust adhering to it again when the photosensitive resin wire body 2 is cleaned later, thereby improving the cleaning effect;

[0036] In addition, the first solenoid valve 17 and the first electric push rod 18 are opened, so that the driving end of the first electric push rod 18 is extended and retracted to drive the piston 19 to reciprocate in the water tank 8, and the outside air can be sucked into the water tank 8 through the vent hole on the rear side of the water tank 8, and then the piston 19 is cooperated to push the air under the partition 14, so that the air pressurizes the water under the partition 14 and sprays it on the C-type wiping member 6 with dust adhered through the nozzle 12, thereby achieving the effect of flushing the C-type wiping member 6. In addition, in the process of flushing the C-type wiping member 6, the second electric push rod 21 is opened, so that the driving end of the second electric push rod 21 is extended to drive the C-type scraping member 22 to move downward and scrape the sewage on the C-type wiping member 6, so as to achieve the effect of cleaning the C-type wiping member 6, thereby indirectly improving the cleaning effect of the photosensitive resin wire body 2;

[0037] In addition, after flushing the C-type wiping member 6, the first solenoid valve 17 is closed and the second solenoid valve 23 is opened, and then the first electric push rod 18 is continued to be opened, so that air can be injected into the second solenoid valve 23 and the nozzle 24, and the wet C-type wiping member 6 can be air-dried, and the drying rate of the C-type wiping member 6 can be accelerated, thereby avoiding delay in cleaning the photosensitive resin wire body 2, thereby further improving the cleaning effect of the photosensitive resin wire body 2;

[0038] Finally, the sewage will flow out of the position specified by the drainage pipe 27 along the drainage plate 26, which can prevent the sewage from adhering to the photosensitive resin wire body 2.

[0039] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A 3D printing photosensitive resin wire melting device, comprising a melting box (1), characterized in that: A photosensitive resin wire body (2) is slidably inserted in the melting box (1), two guide rods (3) are symmetrically fixedly installed in the melting box (1), two U-shaped frames (4) are symmetrically slidably sleeved on the two guide rods (3), a rotating roller (5) is rotatably arranged on the U-shaped frame (4), and C-shaped wiping members (6) are fixedly installed on all four sides of the rotating roller (5), one of the C-shaped wiping members (6) is against the outer surface of the photosensitive resin wire body (2), and a motor (6) is fixedly installed on one side of the U-shaped frame (4). 7), the driving shaft of the motor (7) is drivingly connected to one end of the rotating roller (5), a water storage tank (8) is fixedly installed on one side of the U-shaped frame (4), an iron sheet (9) is fixedly installed on one side of the water storage tank (8), two electromagnets (10) are symmetrically installed in the melting box (1), the electromagnets (10) and the iron sheet (9) are matched and abutted against each other, and two return springs (11) are movably sleeved on the guide rod (3), and the two ends of the return spring (11) are respectively fixedly connected to the U-shaped frame (4) and the inner wall of the melting box (1).

2. A 3D printing photosensitive resin wire melting device as claimed in claim 1, characterized in that: The outer surface of the return spring (11) is covered with a waterproof film, and the return spring (11) is made of stainless steel.

3. A 3D printing photosensitive resin wire melting device as claimed in claim 1, characterized in that: The U-shaped frame (4) is provided with a nozzle (12), the nozzle (12) is located on one side of the C-shaped wiping member (6), an L-shaped tube (13) is fixedly plugged into the nozzle (12), the other end of the L-shaped tube (13) is fixedly plugged into the water storage tank (8), a partition (14) is fixedly installed in the water storage tank (8), an air inlet (15) is provided in the partition (14), a one-way air inlet valve (16) and a first solenoid valve (17) are provided in the air inlet (15), the one-way air inlet valve (16) is located below the first solenoid valve (17), a first electric push rod (18) is provided on the top of the water storage tank (8), a piston (19) is provided at the driving end of the first electric push rod (18), the piston (19) is slidably connected in the water storage tank (8), and air vents are provided on the rear side and the top of the water storage tank (8).

4. A 3D printing photosensitive resin wire melting device as claimed in claim 1, characterized in that: A C-shaped frame (20) is arranged on the top of the U-shaped frame (4), a second electric push rod (21) is fixedly installed on the top of the C-shaped frame (20), a C-shaped scraper (22) is arranged on the driving end of the second electric push rod (21), and a C-shaped wiping member (6) below the C-shaped scraper (22) is slidably connected on one side.

5. A 3D printing photosensitive resin wire melting device as claimed in claim 3, characterized in that: A spray head (24) is obliquely arranged on one side of the water storage tank (8), and the spray head (24) faces the C-shaped wiping member (6). A second solenoid valve (23) is arranged in the water storage tank (8), and the second solenoid valve (23) is connected to the spray head (24).

6. A 3D printing photosensitive resin wire melting device as claimed in claim 5, characterized in that: The number of the nozzles (12) and the number of the air jets (24) are both multiple, and the width of the two ends formed by the combination of the multiple nozzles (12) and the air jets (24) is equal to the width of the C-shaped wiper (6).

7. A 3D printing photosensitive resin wire melting device as claimed in claim 1, characterized in that: A water retaining member (25) is fixedly installed in the melting box (1), two drainage plates (26) are symmetrically installed on the top of the water retaining member (25), and drainage pipes (27) are fixedly plugged on both sides of the melting box (1).

8. A 3D printing photosensitive resin wire melting device as claimed in claim 1, characterized in that: Two limiting rollers (28) are symmetrically rotatably connected in the melting box (1), and the limiting rollers (28) are against the photosensitive resin wire body (2). A motor is also arranged on the rear side of the melting box (1), and the driving shaft of the motor is transmission-connected to one end of one of the limiting rollers (28). Two heating plates (29) are symmetrically arranged in the melting box (1), and electric heating wires are embedded in the heating plates (29).

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