Knotting prevention device for 3D printing consumables

Abstract

The utility model discloses a 3D printing consumable anti-knotting device which comprises a consumable disc, a winding groove is formed in the middle of the consumable disc, and consumables are wound in the winding groove; and the anti-winding mechanism is arranged on the consumable disc, and the anti-winding mechanism is suitable for limiting the consumables in the winding groove. The follow-up blocking piece is arranged and can move in the ring body direction of the winding groove, so that the consumables are dynamically limited, the consumables are prevented from being scattered or entangled in the high-speed taking-out or irregular pulling process, and the smoothness and reliability of the consumables in the using process are remarkably improved through the design; modular design is adopted, all the components are movably connected through the sliding parts and the annular grooves, the mounting and dismounting processes can be completed only through simple operation without complex tools, the maintenance efficiency of equipment is remarkably improved, the anti-winding mechanism is directly designed on the consumable disc and integrally formed with the consumable disc, external mounting of extra components is avoided, and the cost is reduced. And the size of the device is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of additive manufacturing technology, specifically to a device for preventing knotting of 3D printing consumables. Background Technology

[0002] In 3D printing technology, consumables (such as plastic filaments, metal filaments, or other composite materials) are essential for achieving the printed shape. These consumables are typically stored in rolls and continuously supplied to the printing equipment from a filament reel during the printing process. To ensure print quality, the consumables must maintain a smooth feeding process.

[0003] However, existing consumable tray designs are mostly open structures, making consumables prone to loosening, knotting, or tangling during use. This not only affects printing efficiency but can also lead to printing interruptions or material waste, causing considerable inconvenience to users. To reduce consumable tangling, some current consumable trays use external covers or elastic clamping devices to limit consumable dispersion, but these methods are often limited in effectiveness. For example, external covers are difficult to adapt to different consumable roll sizes and can easily cause consumable jamming during high-speed feeding; while elastic clamping devices are prone to fatigue failure after prolonged use. In addition, these improvement solutions generally suffer from complex structures, difficult assembly, and inconvenient maintenance, failing to meet users' needs for efficient and stable consumable feeding.

[0004] Therefore, there is an urgent need for a 3D printing consumable anti-tangling device that can meet the needs of 3D printing consumables. It should have good dynamic limiting ability to effectively prevent consumables from tangling or scattering. At the same time, it should have the characteristics of simple structure, convenient processing and easy operation, so as to comprehensively improve the reliability and efficiency of consumable management. Utility Model Content

[0005] The purpose of this invention is to provide a 3D printing consumable anti-knotting device to solve the problem mentioned in the background art that existing consumables are prone to loosening, knotting or tangling during use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a 3D printing consumable anti-knotting device, comprising:

[0007] A consumables tray, wherein a winding groove is provided in the middle of the consumables tray, and consumables are wound up in the winding groove;

[0008] An anti-winding mechanism is provided on the consumable tray, and the anti-winding mechanism is adapted to confine the consumable in the take-up groove.

[0009] Preferably, the anti-winding mechanism includes:

[0010] Two sets of annular grooves are respectively opened on both sides of the consumable tray;

[0011] The follower baffle is movably connected to the two sets of annular grooves on both sides.

[0012] Preferably, the follower baffle includes:

[0013] The upper limit stop moves along the circumferential direction of the winding groove ring.

[0014] Two sets of side limiting parts are integrally connected to both sides of the upper limiting part, and the two sets of side limiting parts are located on both sides of the consumable tray;

[0015] Two sets of sliding parts are integrally connected to the side of the two sets of side limiting parts that are close to each other, and the two sets of sliding parts are movably connected to the two sets of annular grooves respectively.

[0016] Preferably, the sliding part has a cylindrical structure, and the diameter of the sliding part is smaller than the width of the annular opening of the annular groove.

[0017] Preferably, a threading hole is provided through the middle of the upper limit part.

[0018] Preferably, a slider is fixedly connected to the bottom of the upper limit position, a T-shaped groove is formed in the bottom of the slider, a pulley is slidably connected to the upper end of the T-shaped groove, a bracket is connected to the pulley, the upper end of the bracket is connected to the lower end of the T-shaped groove, and the lower end of the bracket extends to the outer side of the bottom of the slider.

[0019] Preferably, the bracket has an inverted "Y" shape and the inner side of the lower end of the bracket has a circular arc structure.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1) This application sets a follower baffle, which can move along the annular direction of the take-up groove, thereby dynamically limiting the consumables and preventing them from scattering or getting tangled during high-speed take-out or irregular pulling. This design significantly improves the smoothness and reliability of consumables during use.

[0022] 2) This application adopts a modular design, with each component connected to the other through a sliding part and an annular groove. The installation and disassembly process does not require complicated tools and can be completed with simple operation, which significantly improves the maintenance efficiency of the equipment. The anti-winding mechanism is designed directly on the consumable tray and integrally formed with it, avoiding the external installation of additional components, greatly reducing the size of the device, saving storage space, and facilitating integration with existing equipment, thus improving the system's adaptability and ease of operation.

[0023] 3) The cooperation between the sliding part and the annular groove in this application allows the follower baffle to be freely adjusted according to the width of the consumable and the picking speed, thereby meeting the usage requirements of different specifications and multiple types of consumables. At the same time, the arc structure at the bottom of the bracket and the design of the slider further optimize the force distribution, improve the service life of the overall mechanism, and reduce the failure rate.

[0024] 4) The sliding part of this application is designed as a cylindrical structure, which is compatible with existing standard processing technology. The annular groove and T-shaped groove can also be formed in one step using conventional molds, reducing production difficulty and manufacturing costs. At the same time, the overall structure is simple and clear, suitable for mass production, and conducive to large-scale application. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;

[0026] Figure 2 This is a schematic diagram of the follower baffle structure of Embodiment 1 of this application;

[0027] Figure 3 This is a schematic diagram of the follower baffle structure of Embodiment 2 of this application;

[0028] Figure 4 This is a front cross-sectional view of the follower baffle structure of Embodiment 3 of this application;

[0029] Figure 5 This is a front view of the follower baffle in Embodiment 3 of this application;

[0030] Figure 6 This is a cross-sectional view of the slider side structure of Embodiment 3 of this application;

[0031] Figure 7 This is a schematic diagram of the structure of Embodiment 4 of this application;

[0032] Figure 8 This is a front view of the follower baffle in Embodiment 4 of this application;

[0033] Figure 9 This is a cross-sectional view of the first structure of the annular groove in Embodiment 5 of this application;

[0034] Figure 10 This is a cross-sectional view of the second structure of the annular groove in Embodiment 5 of this application;

[0035] Figure 11 This is a cross-sectional view of the third structure of the annular groove in Embodiment 5 of this application;

[0036] Figure 12 This is a cross-sectional view of the fourth structure of the annular groove in Embodiment 5 of this application;

[0037] Figure 13This is a fifth structural cross-sectional view of the annular groove in Embodiment 5 of this application.

[0038] In the picture:

[0039] 1. Consumables tray; 11. Rewind trough; 12. Consumables;

[0040] 2. Anti-winding mechanism; 21. Annular groove; 22. Follower baffle; 221. Upper limit stop; 2211. Threading hole; 222. Side limit stop; 223. Sliding part;

[0041] 3. Slider; 31. T-shaped groove; 32. Pulley; 33. Bracket. Detailed Implementation

[0042] 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.

[0043] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Example 1

[0046] Please see Figure 1-2 This utility model provides a technical solution: a 3D printing consumable anti-knotting device, comprising:

[0047] Consumables tray 1, with a winding groove 11 in the middle, where consumables 12 are wound up;

[0048] An anti-winding mechanism 2 is provided on the consumable tray 1, and the anti-winding mechanism 2 is adapted to confine the consumable 12 in the take-up groove 11.

[0049] Specifically, the winding groove 11 has a ring structure. The design of the winding groove 11 ensures the compactness of the consumable 12 during storage, while the anti-tangling mechanism 2 further dynamically constrains the consumable 12, keeping it always within the winding groove 11, thereby significantly improving the management efficiency and ease of use of the consumables. In addition, this structure is simple and compact, easy to process and mold, and highly adaptable, making it widely applicable to various types of consumable storage and retrieval scenarios.

[0050] The anti-winding mechanism 2 includes:

[0051] Two sets of annular grooves 21 are respectively opened on both sides of the consumable tray 1;

[0052] The follower baffle 22 is movably connected to two sets of annular grooves 21 on both sides;

[0053] Specifically, by designing the cooperation of two sets of annular grooves 21 and follower baffles 22, the consumable tray 1 is ensured to have anti-tangling function on both sides. The follower baffles 22 are movably connected to the annular grooves 21 on both sides, allowing them to move flexibly with the direction of consumable removal, dynamically limiting the consumables. This design prevents consumables from falling out of the grooves due to high-speed pulling, while ensuring the stability and flexibility of the limiting structure. Furthermore, the annular grooves 21 and the consumable tray 1 are integrally formed, simplifying the manufacturing process; the movable connection design of the follower baffles 22 facilitates disassembly and replacement, further reducing maintenance costs.

[0054] The follower baffle 22 includes:

[0055] The upper limit position 221 moves along the direction of the ring body surrounding the take-up groove 11;

[0056] Two sets of side limiting parts 222 are integrally connected to both sides of the upper limiting part 221, and the two sets of side limiting parts 222 are located on both sides of the consumable tray 1.

[0057] Two sets of sliding parts 223 are integrally connected to the side of the two sets of side limiting parts 222 that are close to each other, and the two sets of sliding parts 223 are movably connected to the two sets of annular grooves 21.

[0058] Specifically, the various components of the follower baffle 22, including the upper limit part 221, the side limit part 222, and the sliding part 223, jointly achieve multi-directional constraint on the consumables. The upper limit part 221 can move along the winding groove 11, effectively limiting the lateral sliding of the consumables. The two sets of side limit parts 222 provide additional support to both sides of the consumable tray 1, preventing the consumables from tilting outward or spreading. The sliding part 223 is movably connected to the annular groove 21, ensuring the flexibility and stability of the follower baffle 22's operation. This design has excellent anti-winding performance, while also having a simplified structure, simple assembly and debugging process, and is suitable for various types of consumables.

[0059] Specifically, during use, the consumable tray 1 should be installed on the printer. The consumable tray 1 rotates through the drive mechanism on the printer, while the consumable 12 enters the printer through the wire feeding mechanism. During this process, the consumable 12 maintains a certain tension and spreads outward. However, due to the action of the follower baffle 22, the consumable 12 is always limited within the annular groove 21, preventing the consumable 12 from detaching from the annular groove 21. Furthermore, since the consumable 12 abuts against the follower baffle 22, as the consumable tray 1 rotates, the follower baffle 22 is also pushed to the corresponding position by the consumable 12 along with the rotation of the consumable tray 1. This achieves the goal of keeping the follower baffle 22 and the output part of the consumable 12 within a certain relative range, thereby avoiding the problem of the consumable 12 becoming tangled or knotted.

[0060] The sliding part 223 has a cylindrical structure, and its diameter is smaller than the width of the annular opening of the annular groove 21. Specifically, this allows the sliding part 223 to have sufficient degrees of freedom when moving within the annular groove 21. This design not only ensures smooth sliding of the follower baffle 22 but also reduces friction during movement, thereby extending the service life of the mechanism. Furthermore, the cylindrical structure is easy to process and adaptable to various existing production equipment, further reducing manufacturing difficulty and cost.

[0061] Specifically, the follower baffle 22 can be made of plastic or rubber, and has a certain deformation capacity, making it easy to install and disassemble.

[0062] Example 2

[0063] Please see Figure 3 A threading hole 2211 is provided through the middle of the upper limit stop 221. Specifically, by providing a threading hole 2211 in the middle of the upper limit stop 221, a channel is provided for the smooth extraction of consumables. The position of the threading hole 2211 is precisely designed to prevent consumables from getting tangled or stuck during passage, while ensuring that the consumables leave the take-up slot 11 in a fixed direction. This design not only optimizes the efficiency of consumable extraction but also protects the surface of the consumables from damage, making it suitable for the processing and use of delicate or easily consumable materials.

[0064] Specifically, under high-speed feeding conditions, filaments are prone to swaying or tangling due to inertia. The threading hole 2211 acts as a limiter, forcing the filament to remain within the designated path, thus preventing tangling or feeding interruptions. For certain consumable materials (such as filaments coated with special coatings or high-precision conductive filaments), the threading hole 2211 can protect the filament during guidance, preventing direct contact between the filament and external components, reducing friction and damage, and ensuring the integrity and surface quality of the filament. The through-hole design of the threading hole 2211 allows the filament to be drawn out from different directions, providing a solution for multi-angle feeding needs in complex equipment layouts. For example, in 3D printers or other equipment, the filament feeding path may need to bypass multiple components; this design meets the equipment's requirement for flexible feeding. The design of the threading hole 2211 is also suitable for scenarios requiring repeated filament pulling, such as long printing jobs or frequent filament changes. By ensuring that each feeding stably passes through the limiting part, the risk of filament tangling or feeding failure due to human interference can be significantly reduced. In summary, the 2211 wire threading hole provides a reliable guarantee for smooth filament feeding, and is particularly suitable for applications with high requirements for filament path stability, such as 3D printing, high-precision wire processing, or other industrial processes that require continuous feeding.

[0065] Example 3

[0066] Please see Figure 4-6 The bottom of the upper limit part 221 is fixedly connected to a slider 3. A T-shaped groove 31 is provided in the bottom of the slider 3. A pulley 32 is slidably connected in the upper end of the T-shaped groove 31. A bracket 33 is connected to the pulley 32. The upper end of the bracket 33 is connected to the lower end of the T-shaped groove 31. The lower end of the bracket 33 extends to the outer side of the bottom of the slider 3.

[0067] Specifically, the slider 3, T-shaped groove 31, pulley 32, and bracket 33 together constitute a highly efficient and stable movable support mechanism. The slider 3, in conjunction with the pulley 32 within the T-shaped groove 31, allows the bracket 33 to move flexibly, enhancing the overall adjustability of the device. The extended bottom design of the bracket 33 provides both stable support and facilitates the assembly and disassembly of the consumable tray 1. This design further improves the reliability and durability of the mechanism while simplifying daily operation and maintenance procedures.

[0068] Specifically, the T-shaped slide 31 has a "T" shaped structure on its side, with closed structures at both ends and an open structure at the bottom. Since the pulley 32 can slide inside the T-shaped slide 31, the flexible movement of the bracket 33 can meet the displacement requirements of the consumable 12 during processing and feeding.

[0069] The bracket 33 has an inverted "Y" shape, and the inner side of the lower end of the bracket 33 is an arc shape. Specifically, the inverted "Y" shaped bracket 33 allows the consumable 12 to be directly placed into its bottom, improving the convenience of operation. In addition, the arc shape fits the shape of the consumable 12 better, reducing the wear and tear of the consumable 12 during use.

[0070] Example 4

[0071] Please see Figure 7-8 The parts that are the same as in Example 1 will not be described again here.

[0072] The anti-winding mechanism 2 includes:

[0073] Two sets of annular grooves 21 are respectively opened on the inner walls of the two sides of the consumable tray 1;

[0074] The follower baffle 22 is movably connected to two sets of annular grooves 21 on both sides;

[0075] The follower baffle 22 includes:

[0076] The upper limit position 221 moves along the direction of the ring body surrounding the take-up groove 11;

[0077] Two sets of side limiting parts 222 are integrally connected to both sides of the upper limiting part 221, and the two sets of side limiting parts 222 are located on both sides of the consumable tray 1.

[0078] Two sets of sliding parts 223 are integrally connected to the two sets of side limiting parts 222 on opposite sides, and the two sets of sliding parts 223 are movably connected to the two sets of annular grooves 21.

[0079] Specifically, the difference from Embodiment 1 lies in that the annular groove 21 is formed on the inner wall of the consumable tray 1, and the size of the follower baffle 22 is reduced. This can play a significant role in specific situations, such as when the internal space of certain devices is limited (e.g., miniaturized 3D printing equipment or portable consumable supply systems). Placing the annular groove 21 on the inner wall of the consumable tray 1 rather than the outside can effectively save external space and make the overall structure more compact. This design facilitates integration with other devices and is particularly suitable for small systems that require space saving. In summary, the design of forming the annular groove 21 on the inner wall of the consumable tray 1 is particularly suitable for scenarios with limited space, high material supply requirements, complex environments, or diverse consumable specifications. It combines structural compactness, operational stability, and durability, and is an optimized and upgraded solution for the traditional external wall annular groove design.

[0080] Example 5

[0081] Please see Figure 9-12 This embodiment illustrates multiple shapes of the annular groove 21. See also... Figure 9 The annular groove 21 is a standard annular structure; see reference. Figure 10The annular groove 21 is an annular structure with a wide opening and a narrow interior; see reference. Figure 11 The annular groove 21 is an annular structure with a narrow opening and a wide interior; see reference. Figure 12 The inner wall of the annular groove 21 is rounded to reduce friction in the moving components; see reference. Figure 13 The annular groove 21 has a cross-sectional "+" structure and can be used for motion components that require limiting.

[0082] Specifically, annular grooves 21 with different shapes and structures can be used in conjunction with sliding parts 223 under different conditions, and annular grooves 21 with different shapes and structures should all fall within the protection scope of this application.

[0083] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A 3D printing consumable anti-knotting device, characterized in that, include: Consumable tray (1), the consumable tray (1) is provided with a winding groove (11) in the middle, and consumables (12) are wound in the winding groove (11); An anti-winding mechanism (2) is provided on the consumable tray (1), and the anti-winding mechanism (2) is adapted to confine the consumable (12) in the take-up groove (11).

2. The 3D printing consumable anti-knotting device according to claim 1, characterized in that, The anti-winding mechanism (2) includes: Two sets of annular grooves (21) are respectively opened on both sides of the consumable tray (1); The follower baffle (22) is movably connected to the two sets of annular grooves (21) on both sides.

3. The 3D printing consumable anti-knotting device according to claim 2, characterized in that, The follower baffle (22) includes: The upper limit part (221) moves along the direction of the winding groove (11) ring body; Two sets of side limiting parts (222) are integrally connected to both sides of the upper limiting part (221), and the two sets of side limiting parts (222) are located on both sides of the consumable tray (1); Two sets of sliding parts (223) are integrally connected to the two sets of side limiting parts (222) on the side that are close to each other, and the two sets of sliding parts (223) are movably connected to the two sets of annular grooves (21).

4. The 3D printing consumable anti-knotting device according to claim 3, characterized in that, The sliding part (223) has a cylindrical structure, and the diameter of the sliding part (223) is smaller than the width of the annular opening of the annular groove (21).

5. The 3D printing consumable anti-knotting device according to claim 3, characterized in that, The upper limit part (221) has a through-hole (2211) in the middle.

6. The 3D printing consumable anti-knotting device according to claim 3, characterized in that, The bottom of the upper limit part (221) is fixedly connected to a slider (3). A T-shaped groove (31) is provided in the bottom of the slider (3). A pulley (32) is slidably connected in the upper end of the T-shaped groove (31). A bracket (33) is connected to the pulley (32). The upper end of the bracket (33) is connected to the lower end of the T-shaped groove (31). The lower end of the bracket (33) extends to the outer side of the bottom of the slider (3).

7. The 3D printing consumable anti-knotting device according to claim 6, characterized in that, The bracket (33) has an inverted "Y" shape, and the inner side of the lower end of the bracket (33) is an arc structure.

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