Reloading and recycling device for FDM single-nozzle multicolor printer

Abstract

The utility model discloses a material changing and recycling device of an FDM (fused deposition modeling) single-nozzle multicolor printer. The material changing and recycling device comprises an FDM 3D printer nozzle and a recycling mechanism, a recycling mechanism is arranged below the FDM3D printer nozzle; the recycling mechanism comprises a mounting plate, heating rods, a material melting pipe and a floating sleeve, the mounting plate is arranged below the FDM3D printer nozzle, the material melting pipe is mounted in the center of the interior of the mounting plate, and the heating rods are mounted at the positions, close to the two ends of the material melting pipe, of the interior of the mounting plate; through the mounting plate, the heating rod, the material melting pipe and the floating sleeve, materials in the material melting pipe are melted by heating in advance through the heating rod, and the floating sleeve is pressed downwards through the nozzle of the FDM3D printer, so that the nozzle of the FDM3D printer is overlapped with the floating sleeve and the material melting pipe; and after the three coincide, the FDM3D printer nozzle extrudes the remaining material of the previous color and the remaining material of the mixed color of the previous color and the new color into the material melting pipe, and the remaining material can directly become the universal linear consumable of the printer after being extruded by the material melting pipe, so that the waste of the consumable can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printer material replacement and recovery, in particular to a FDM single-nozzle multi-color printer material replacement and recovery device. Background Art

[0002] FDM is a commonly used 3D printing technology that creates objects by melting and depositing plastic filaments layer by layer. A single-nozzle multi-color printer is a variant of FDM that uses one nozzle to print two or more different colors of plastic filaments at the same time to achieve color 3D printing. The material recovery device is a key component in a single-nozzle multi-color printer, which prevents material waste and maintains printing quality.

[0003] Single-nozzle multi-color printers generally change materials by using a material changing tower. The waste materials generated when the printer changes colors are used to print objects. The colors are generally uncontrollable, the printed objects are small and have no use value in the later stage, which will lead to the problem of waste of printing consumables. Utility Model Content

[0004] The purpose of the utility model is to provide a material replacement and recycling device for an FDM single-nozzle multi-color printer, so as to solve the problem that the single-nozzle multi-color printer proposed in the above background technology generally replaces materials by using a material replacement tower, and the waste materials generated when the printer changes colors are used to print objects. The colors are generally uncontrollable, the printed objects are small and have no utilization value in the later stage, which will lead to the waste of printing consumables.

[0005] The utility model provides the following technical solutions: a material replacement and recovery device for a FDM single-nozzle multi-color printer, comprising an FDM3D printer nozzle and a recovery mechanism; a recovery mechanism is installed at the bottom of the FDM3D printer nozzle;

[0006] The recovery mechanism includes a mounting plate, a heating rod, a melt tube and a floating sleeve. The mounting plate is installed at the bottom of the FDM3D printer nozzle, the melt tube is installed at the central position inside the mounting plate, the heating rod is installed inside the mounting plate near the two ends of the melt tube, and the floating sleeve is installed on the top of the melt tube.

[0007] Preferably, a spring is installed on the outer side of the melt tube, and a floating sleeve is connected to the top of the spring.

[0008] Preferably, cooling fans are installed at both ends of the bottom of the recovery mechanism.

[0009] Preferably, a scraper plate is installed on one side of the top of the floating sleeve.

[0010] Preferably, two groups of slide grooves are symmetrically arranged on the outer surface of the molten material tube, and bosses are arranged on the inner wall of the floating sleeve close to both sides of the slide grooves.

[0011] Preferably, the outer surface of the floating sleeve is provided with a chamfered surface.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model uses an installation plate, a heating rod, a melt tube and a floating sleeve. The heating rod is used to heat the material in the melt tube in advance to melt the material. The floating sleeve is pressed down by the FDM3D printer nozzle to make the FDM3D printer nozzle overlap with the floating sleeve and the melt tube. After the three overlap, the FDM3D printer nozzle extrude the remaining material of the previous color and the mixed color remaining material of the previous color and the new color into the melt tube. After the melt tube is extruded, it will directly become a universal linear consumable of the printer, thereby avoiding the waste of consumables.

[0014] 2. The utility model installs a scraper plate on one side of the top of the floating sleeve. The scraper plate on the floating sleeve can remove a small amount of residual material remaining on the nozzle of the FDM3D printer during the recycling process to ensure the subsequent printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the recovery mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the side structure of the recovery mechanism of the utility model;

[0018] Figure 4 It is a schematic diagram of the top view structure of the floating sleeve of the utility model.

[0019] In the figure: 1. FDM 3D printer nozzle; 2. Recovery mechanism; 201. Mounting plate; 202. Heating rod; 203. Melting tube; 204. Floating sleeve; 3. Cooling fan; 4. Scraper plate; 401. Boss; 402. Cutting surface; 5. Slide; 6. Spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments of the specification;

[0024] Embodiment 1:

[0025] The present application provides a material replacement and recovery device for a FDM single-nozzle multi-color printer, comprising an FDM3D printer nozzle 1 and a recovery mechanism 2; the recovery mechanism 2 is provided below the FDM3D printer nozzle 1;

[0026] The recycling mechanism 2 includes a mounting plate 201, a heating rod 202, a melt tube 203 and a floating sleeve 204. The mounting plate 201 is provided below the FDM 3D printer nozzle 1. The melt tube 203 is installed at the central position inside the mounting plate 201. The heating rod 202 is installed near both ends of the melt tube 203 inside the mounting plate 201. The floating sleeve 204 is installed on the top of the melt tube 203.

[0027] Specifically, Figure 1 , Figure 2 and Figure 3As shown, the FDM3D printer nozzle 1 is arranged at the FDM3D printer printing place, and the recycling mechanism 2 is arranged on the FDM3D printer printing platform. The recycling mechanism 2 is used to reduce the waste of printing consumables. When the device is working, the heating rod 202 on the mounting plate 201 is preheated to melt the material in the melting tube 203 installed on the mounting plate 201, and then the FDM3D printer nozzle 1 is moved to coincide with the axis of the melting tube 203, so that the printing platform on the printer drives the mounting plate 201 The nozzle 1 of the FDM3D printer rises, and at the same time, the floating sleeve 204 is pressed down by the FDM3D printer nozzle head 1 to make the upper conical surface of the FDM3D printer nozzle head 1 coincide with the conical surface of the floating sleeve 204 and the conical surface of the melt tube 203. After the three coincide, the nozzle 1 of the FDM3D printer extrude the remaining material of the previous color and the mixed color remaining material of the previous color and the new color into the melt tube 203. After being extruded through the melt tube 203, it becomes a universal linear consumable of the FDM3D printer with a diameter of 1.75 mm, thereby avoiding the waste of consumables.

[0028] Furthermore, a spring 6 is installed on the outside of the melting tube 203, and a floating sleeve 204 is connected to the top of the spring 6;

[0029] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, in order to achieve the sealing between the FDM3D printer nozzle 1, the floating sleeve 204 and the melt tube 203, one end of the spring 6 is connected to the mounting plate 201, and the other end is connected to the floating sleeve 204. The sealing between the FDM3D printer nozzle 1, the floating sleeve 204 and the melt tube 203 is completed by the melted consumable filling gap and the pressure of the spring 6.

[0030] Further, cooling fans 3 are installed at both ends of the bottom of the recovery mechanism 2;

[0031] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, in order to cool the mixed extruded consumables, after the new consumables are extruded through the melt tube 203 , the consumables can be cooled by the cooling fans 3 installed at both ends of the bottom of the mounting plate 201 .

[0032] Further, a scraper plate 4 is installed on one side of the top of the floating sleeve 204;

[0033] Specifically, Figure 4 As shown, in order to remove the residual printing material on the FDM3D printer nozzle 1, after the color change is completed, the printer printing platform is sunk and the floating sleeve 204 is reset, so that the FDM3D printer nozzle 1 moves to the lowest end. At this time, the scraper plate 4 on the floating sleeve 204 can remove a small amount of residual material remaining on the FDM3D printer nozzle 1 during the recycling process to ensure the subsequent printing quality.

[0034] Furthermore, two groups of slide grooves 5 are symmetrically arranged on the outer surface of the melt pipe 203, and bosses 401 are arranged on the inner wall of the floating sleeve 204 near both sides of the slide grooves 5;

[0035] Specifically, Figure 3 and Figure 4 As shown, in order to realize the axial limiting movement between the floating sleeve 204 and the melt tube 203, the boss 401 is moved inside the slide groove 5 through the slide grooves 5 on both sides of the melt tube 203 and the boss 401 on the floating sleeve 204, ensuring that the floating sleeve 204 is limited along the axial direction of the melt tube 203.

[0036] Further, the outer surface of the floating sleeve 204 is provided with a chamfered surface 402;

[0037] Specifically, Figure 4 As shown, in order to facilitate the installation of the device, two sets of cut surfaces 402 are provided on the outer surface of the floating sleeve 204 , and the cut surfaces 402 can facilitate workers to install the device.

[0038] Working principle: The heating rod 202 is heated in advance to melt the material in the melt tube 203, and then the FDM3D printer nozzle 1 is moved to coincide with the axis of the melt tube 203, so that the printing platform on the printer drives the mounting plate 201 to rise, and at the same time, the FDM3D printer nozzle 1 presses down the floating sleeve 204 to make the upper conical surface of the FDM3D printer nozzle 1 coincide with the conical surface of the floating sleeve 204 and the conical surface of the melt tube 203. The sealing between the three is completed by the melted consumable filling gap and the pressure of the spring 6. After the three coincide, the FDM3D printer nozzle 1 squeezes out the remaining material of the previous color and The mixed color residue of the previous color and the new color goes into the melt tube 203, and after being extruded through the melt tube 203, it becomes a universal linear consumable of FDM3D printer with a diameter of 1.75 mm. After the new consumable is extruded through the melt tube 203, the consumable can be cooled by the cooling fan 3. After the color change is completed, the printer printing platform sinks and the floating sleeve 204 is reset. At this time, when the FDM3D printer nozzle 1 moves to the lowest end, the scraper plate 4 on the floating sleeve 204 can remove a small amount of residual material remaining on the FDM3D printer nozzle 1 during the recycling process to ensure the subsequent printing quality.

[0039] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A material replacement and recovery device for a FDM single-nozzle multi-color printer, comprising an FDM 3D printer nozzle (1) and a recovery mechanism (2); characterized in that: A recovery mechanism (2) is provided below the FDM 3D printer nozzle (1); The recovery mechanism (2) comprises a mounting plate (201), a heating rod (202), a melting material tube (203) and a floating sleeve (204); a mounting plate (201) is provided below the FDM 3D printer nozzle (1); a melting material tube (203) is installed at a central position inside the mounting plate (201); heating rods (202) are installed inside the mounting plate (201) near both ends of the melting material tube (203); and a floating sleeve (204) is installed on the top of the melting material tube (203).

2. According to claim 1, a FDM single-nozzle multi-color printer material replacement and recovery device is characterized in that: A spring (6) is installed on the outer side of the melting tube (203), and a floating sleeve (204) is connected to the top of the spring (6).

3. The material replacement and recovery device for a FDM single-nozzle multi-color printer according to claim 1, characterized in that: Cooling fans (3) are installed at both ends of the bottom of the recovery mechanism (2).

4. The material replacement and recovery device for a FDM single-nozzle multi-color printer according to claim 1, characterized in that: A scraper plate (4) is installed on one side of the top of the floating sleeve (204).

5. The material replacement and recovery device for a FDM single-nozzle multi-color printer according to claim 1, characterized in that: The outer surface of the molten material tube (203) is symmetrically provided with two groups of slide grooves (5), and the inner wall of the floating sleeve (204) close to both sides of the slide grooves (5) is provided with bosses (401).

6. The material replacement and recovery device for a FDM single-nozzle multi-color printer according to claim 1, characterized in that: The outer surface of the floating sleeve (204) is provided with a chamfered surface (402).

Images