A welding device for printing filament consumables in FDM 3D printers

Abstract

This utility model discloses a welding device for printing filament consumables in an FDM 3D printer, relating to the field of 3D printing technology. The utility model includes two housings, one end of which is rotatably connected to each other. The inner sides of both housings share a welding mechanism and a cutting mechanism. The welding mechanism includes a base, the lower surface of which is fixedly connected to the lower inner wall of one of the housings. A welding base is fixedly mounted on one side of the inner wall of the other housing. Heating arc plates are fixedly mounted on one side of the welding base and the upper surface of the base. This utility model, through its welding mechanism, achieves precise bonding and welding of two unwelded printing filaments at the welding cut, not only improving the accuracy and efficiency of welding but also optimizing the positioning and fixation of the printing filaments during the welding process, thereby ensuring welding quality and providing a strong guarantee for stable printing in an FDM 3D printer.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to a welding device for printing filament consumables in FDM 3D printers. Background Technology

[0002] The welding device for FDM 3D printer filaments is suitable for 3D printing scenarios that require frequent replacement or splicing of filaments, such as rapid splicing when the filaments are exhausted during model printing, splicing filaments of different colors or materials, and reuse of qualified filaments after quality inspection, ensuring the continuity of the printing process and the printing quality.

[0003] However, existing technologies still have the following problems:

[0004] Existing FDM 3D printer welding devices still struggle to achieve precise filament bonding at the welding cut during the filament welding process, resulting in weak welds that are prone to breakage, thus affecting print quality and efficiency. Furthermore, due to the lack of a proper positioning and fixing structure, the filament is prone to shifting or wobbling during the welding process, further exacerbating the welding problem. In addition, inaccurate welding can also cause malfunctions such as nozzle blockage and filament breakage during the printing process, increasing maintenance costs and the risk of printing failure.

[0005] To address the aforementioned problems, the inventors have proposed a welding device for FDM 3D printer filament consumables. Utility Model Content

[0006] To address the challenge of achieving precise alignment of the printing filament at the weld joint, this invention aims to provide a welding device for printing filament consumables in FDM 3D printers.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a welding device for printing filament consumables of FDM3D printers, comprising two housings, one end of the two housings being rotatably connected to each other, and the inner sides of the two housings being provided with a welding mechanism and a cutting mechanism. The welding mechanism includes a placement base, the lower surface of which is fixedly connected to the lower inner wall of one of the housings, and a welding base fixedly provided on one side inner wall of the other housing. A heating arc plate is fixedly provided on one side of the welding base and the upper surface of the placement base. A splicing PTFE tube is provided on the inner side of one of the heating arc plates, and two unwelded printing filaments are sleeved on the inner side of the splicing PTFE tube. A welding slit is opened at one end of the unwelded printing filaments, and one side of the two welding slits is abutted together.

[0008] Preferably, the cutting mechanism includes a cutting base, one side of which is fixedly connected to the inner wall of one side of the outer casing, a cutting blade is engaged on one side of the cutting base, a pre-fused printing filament is provided on the upper surface of the storage base, and a PTFE tube to be cut is sleeved on the outer side of the pre-fused printing filament.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This invention achieves precise bonding and welding of two unwelded printing filaments at the welding cut through a welding mechanism. This not only improves the accuracy and efficiency of welding, but also optimizes the positioning and fixation of the printing filaments during the welding process through the reasonable layout of the welding filament channel and the mounting slot, thereby ensuring the welding quality and providing a strong guarantee for the stable printing of FDM 3D printers. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the welding mechanism of this utility model.

[0014] Figure 3 This is a schematic diagram of the cutting mechanism of this utility model.

[0015] In the diagram: 1. Outer shell; 2. Welding mechanism; 3. Cutting mechanism; 4. Opening; 20. Storage base; 21. Unwelded printing filament; 22. PTFE tube for splicing; 23. Welding base; 24. Mounting groove; 25. Heating arc plate; 26. Welding cut; 27. Welding cable management groove; 30. Cutting base; 31. Cutting groove; 32. Cutting blade; 33. Welded printing filament; 34. PTFE tube to be cut; 35. Limiting groove; 36. Cutting cable management groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1-3 As shown, this utility model provides a welding device for printing filament consumables in an FDM 3D printer, including two housings 1, one end of which is rotatably connected to each other. The inner sides of the two housings 1 are jointly provided with a welding mechanism 2 and a cutting mechanism 3. The welding mechanism 2 includes a base 20, the lower surface of which is fixedly connected to the lower inner wall of one of the housings 1. A welding base 23 is fixedly provided on one side of the inner wall of the other housing 1. A heating arc plate 25 is fixedly provided on one side of the welding base 23 and the upper surface of the base 20. A splicing PTFE tube 22 is provided inside one of the heating arc plate 25. Two unwelded printing filaments 21 are sleeved on the inner side of the splicing PTFE tube 22. One end of the unwelded printing filament 21 has a welding slit 26. One side of the two welding slits 26 are joined together. Through the welding mechanism 2, firstly, the... Two unfused printing filaments 21 are inserted into the splicing PTFE tube 22, ensuring that their fusion cuts 26 are aligned. Then, the splicing PTFE tube 22 is placed inside the heating arc plate 25, which is fixed to the placement base 20 and the fusion base 23. The placement base 20 is fixedly connected to the lower inner wall of one of the outer shells 1, while the fusion base 23 is fixedly connected to the inner wall of one side of the other outer shell 1. Next, the heating arc plate 25 is activated by rotating the outer shell 1, thereby heating and fusing the two unfused printing filaments 21 in the splicing PTFE tube 22. During the fusing process, the filament management groove 27 plays a role in managing and positioning the filaments, ensuring that the printing filaments can be accurately and stably fused. After the fusing is completed, the fused printing filaments 33 are obtained, ready for subsequent printing work.

[0018] An opening 4 is provided at one end of the outer casing 1. Welding wire management grooves 27 are provided on both sides of the outer casing 1, the storage base 20, and the welding base 23. Mounting grooves 24 are provided on one side of the welding base 23 and the upper surface of the storage base 20. The mounting grooves 24 are fixedly engaged with the heating arc plate 25. The design of the opening 4 facilitates the insertion and removal of printing filament consumables, improving the convenience of operation. The welding wire management grooves 27 can effectively organize and fix the printing filaments, preventing them from tangling or shifting during the welding process, thereby ensuring the accuracy and stability of the welding. The mounting grooves 24 provide a stable mounting position for the heating arc plate 25, ensuring the stability and reliability of the heating arc plate 25 during the welding process, and further improving the welding quality.

[0019] The cutting mechanism 3 includes a cutting base 30, one side of which is fixedly connected to the inner wall of one side of the outer casing 1. A cutting blade 32 is engaged on one side of the cutting base 30. The upper surface of the placement base 20 is provided with a pre-fused printing filament 33. A PTFE tube 34 to be cut is sleeved on the outer side of the pre-fused printing filament 33. After the welding mechanism 2 completes the welding of the printing filament, the printing filament can proceed to the next step with the pre-fused printing filament 33, and the PTFE tube 34 to be cut is sleeved on its outer side. At this time, the cutting mechanism 3 starts to work. The cutting base 30 is fixedly connected to the inner wall of one side of the outer casing 1, and the cutting blade 32 is engaged on one side of it. A cutting groove 3 is also provided on the cutting base 30. 1. The inner side of the cutting groove 31 engages with the cutting blade 32, ensuring that the cutting blade 32 can perform cutting operations stably and accurately. During the cutting process, the limiting groove 35 plays a role in limiting and fixing, so that the PTFE tube 34 to be cut can be kept in the correct position. By rotating the outer shell 1, the PTFE tube 34 to be cut can be cut. Then, the PTFE tube 34 to be cut can be easily peeled off from the fused printing filament 33, which can then be used to provide suitable printing filament consumables for the printing work of the FDM3D printer. At the same time, the cutting and filament management groove 36 also plays a role in managing and protecting the filament, ensuring the smooth progress of the cutting process.

[0020] A cutting groove 31 is provided on one side of the cutting base 30. The inner side of the cutting groove 31 is engaged with the cutting blade 32. Cutting and filament management grooves 36 are provided on both sides of the outer shell 1, the storage base 20 and the cutting base 30. A limiting groove 35 is provided on one side of the cutting base 30 and the upper surface of the storage base 20. The limiting groove 35 is in contact with the PTFE tube 34 to be cut. The engagement of the cutting groove 31 with the cutting blade 32 ensures the stability and accuracy of the cutting blade 32 during the cutting process, improving the cutting precision. The cutting and filament management groove 36 can organize and fix the printing filament to be cut, preventing it from shaking or shifting during the cutting process, thus ensuring the smooth cutting. The limiting groove 35 is in contact with the PTFE tube 34 to be cut, playing a limiting and fixing role, ensuring the positional accuracy of the PTFE tube 34 to be cut during the cutting process, further improving the cutting quality and efficiency.

[0021] Working principle: First, through the welding mechanism 2, two unwelded printing filaments 21 are inserted into the splicing PTFE tube 22, ensuring that their welding cuts 26 sides are aligned. Then, the splicing PTFE tube 22 is placed inside the heating arc plate 25, which is fixed to the placement base 20 and the welding base 23. The placement base 20 is fixedly connected to the lower inner wall of one of the outer shells 1, while the welding base 23 is fixedly connected to the inner wall of one side of the other outer shell 1. Next, by rotating the outer shell 1, the heating arc plate 25 is simultaneously activated to heat and weld the two unwelded printing filaments 21 in the splicing PTFE tube 22. During the welding process, the welding wire management groove 27 plays a role in wire management and positioning, ensuring that the printing filaments can be welded accurately and stably. After welding is completed, the welded printing filaments 33 are obtained, ready for subsequent printing work.

[0022] After the welding mechanism 2 completes the welding of the printing filament, the printing filament can proceed to the next step with the welded printing filament 33. A PTFE tube 34 to be cut is fitted onto its outer side. At this time, the cutting mechanism 3 starts working. The cutting base 30 is fixedly connected to one side of the inner wall of the outer casing 1, and a cutting blade 32 is engaged on one side of it. A cutting groove 31 is also provided on the cutting base 30. The inner side of the cutting groove 31 engages with the cutting blade 32, ensuring that the cutting blade 32 can perform the cutting operation stably and accurately. During the cutting process... The limiting groove 35 serves to limit and fix the PTFE tube 34 to be cut, ensuring it remains in the correct position. By rotating the outer casing 1, the PTFE tube 34 can be cut, and then it can be easily peeled off from the fused printing filament 33. The fused printing filament 33 can then be used to provide suitable printing filament consumables for the FDM 3D printer. At the same time, the cutting and filament management groove 36 also serves to manage and protect the filament, ensuring the smooth progress of the cutting process.

[0023] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A welding device for printing filament consumables in an FDM 3D printer, comprising two housings (1), characterized in that: One end of the two outer shells (1) is rotatably connected to each other, and the inner sides of the two outer shells (1) are provided with a welding mechanism (2) and a cutting mechanism (3); The welding mechanism (2) includes a base (20), the lower surface of which is fixedly connected to the lower inner wall of one of the outer shells (1), and a welding base (23) is fixedly provided on one side inner wall of the other outer shell (1). A heating arc plate (25) is fixedly provided on one side of the welding base (23) and the upper surface of the base (20). A splicing PTFE tube (22) is provided on the inner side of one of the heating arc plates (25), and two unwelded printing wires (21) are sleeved on the inner side of the splicing PTFE tube (22).

2. The welding device for FDM 3D printer filament consumables as described in claim 1, characterized in that, The cutting mechanism (3) includes a cutting base (30), one side of which is fixedly connected to the inner wall of one side of the outer shell (1). A cutting blade (32) is engaged on one side of the cutting base (30). The upper surface of the storage base (20) is provided with a fused printing filament (33), and a PTFE tube (34) to be cut is sleeved on the outer side of the fused printing filament (33).

3. The welding device for FDM 3D printer filament consumables as described in claim 1, characterized in that, An opening (4) is provided at one end of the outer shell (1).

4. The welding device for FDM 3D printer filament consumables as described in claim 1, characterized in that, The outer shell (1), the storage base (20), and the welding base (23) are all provided with welding cable management grooves (27) on both sides.

5. The welding device for FDM 3D printer filament consumables as described in claim 1, characterized in that, The welding base (23) and the upper surface of the placement base (20) are provided with mounting grooves (24), which are fixedly engaged with the heating arc plate (25).

6. The welding device for FDM 3D printer filament consumables as described in claim 2, characterized in that, The cutting base (30) has a cutting groove (31) on one side, and the inner side of the cutting groove (31) is engaged with the cutting blade (32).

7. The welding device for FDM 3D printer filament consumables as described in claim 1, characterized in that, The outer shell (1), the storage base (20), and the cutting base (30) are all provided with cutting and cable management grooves (36) on both sides.

8. The welding device for FDM 3D printer filament consumables as described in claim 2, characterized in that, Limiting grooves (35) are provided on one side of the cutting base (30) and the upper surface of the placement base (20), and the limiting grooves (35) are in contact with the PTFE tube (34) to be cut.

9. The welding device for FDM 3D printer filament consumables as described in claim 1, characterized in that, Both the splicing PTFE tube (22) and the PTFE tube to be cut (34) are high molecular polymer tubes.

10. The welding device for FDM 3D printer filament consumables as described in claim 1, characterized in that, One end of the unfused printing wire (21) has a welding cut (26), and the two welding cuts (26) are joined together on one side.

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