3D printing feeding buffer device

By designing a 3D printing filament feeding buffer device, which utilizes a combination of torsion springs and buffer supports, the problems of filament misalignment and feeding obstruction caused by the high-speed movement of the printhead were solved, achieving high-quality and stable printing results, reducing maintenance costs, and improving the adaptability of the device.

CN223456481UActive Publication Date: 2025-10-21XINJIANG UNIVERSITY
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Patent Information

Application Number
CN202422808550.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-10-21
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

During high-speed printing, the high-speed movement of the nozzle in a 3D printer can cause misalignment, breakage, and feed obstruction of the filament roll, generating noise and affecting print quality and stability.

Method used

A 3D printing filament feeding buffer device was designed, including a fixed bracket, a buffer support, a torsion spring, and a pneumatic connector. The combination structure of the torsion spring and the buffer support provides a buffering effect, reduces tension fluctuations during filament feeding, and allows the filament to rotate freely during feeding, preventing twisting or tangling.

Benefits of technology

It improves printing quality and accuracy, enhances system stability, reduces maintenance costs, and increases the versatility and flexibility of the device.

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Abstract

The utility model relates to the technical field of 3D printing, and discloses a 3D printing feeding buffer device which comprises a fixing support, the fixing support is provided with a buffer supporting column base and a torsion spring bayonet, the fixing support, a torsion spring and a buffer supporting column are connected through a plug pin, and a base fixing pneumatic connector is arranged at the top end of the buffer supporting column. Two ends of the pneumatic connector are a wire feeding port and a wire discharging port. When the 3D printer nozzle moves rapidly, the pneumatic connector and the buffer supporting column can be driven to move, pressure is buffered through the torsion spring, wire feeding is more relaxed, and the problems that when an existing high-speed 3D printer drives a wire roll to pull the wire roll during empty driving or high-speed printing, the wire roll is dislocated, the wire is broken, feeding is blocked, noise is generated and the like are solved.
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Description

TECHNICAL FIELD

[0001] The application relates to the field of 3D printing technology, and particularly relates to a 3D printing feeding buffer device. BACKGROUND

[0002] The 3D printing technology has unique advantages such as high precision, high speed and flexibility, and therefore, the 3D printing technology has played a value in various industries, and has been popularized in not only high-end manufacturing industries such as aviation, aerospace, medicine, shipbuilding and automobile, but also civil consumer product design and manufacturing such as archeology, education, clothing and food. Meanwhile, with the progress of technology, the size of the 3D printing equipment is continuously reduced, and the printing speed and precision are continuously improved, so that the 3D printing equipment is applied in more fields. With the 3D printing machine entering the high-speed printing era, the high-speed movement of the nozzle can quickly pull the wire, so that the wire roll is dislocated, the wire is broken, the feeding is blocked and noise is generated. SUMMARY

[0003] In view of the defects in the prior art, the purpose of the application is achieved by adopting the technical scheme that the application is a 3D printing wire feeding buffer device, which comprises:

[0004] The fixing support is provided with the buffer strut base and the torsion spring socket, the bolt connects the fixing support, the buffer strut and the torsion spring together through the center holes of the fixing support, the buffer strut and the torsion spring, so that the buffer strut keeps rotating during the movement, one end of the torsion spring is fixed on the buffer strut through the torsion spring socket, and the other end is fixed on the fixing support.

[0005] Further limitation, the two ends of the torsion spring are clamped on the torsion spring sockets on the fixing base and the buffer strut respectively.

[0006] Further limitation, the connecting structure between the fixing support, the torsion spring and the buffer strut is designed to be detachable.

[0007] Further limitation, the pneumatic joint base and the buffer strut are rotatable.

[0008] Further limitation, the torsion spring buffer strut can provide effective buffering when the nozzle of the 3D printing machine moves quickly.

[0009] On the basis of the above technical scheme,

[0010] 1. Compared with the prior art, the application has the advantages that the printing quality is improved.

[0011] Through the torsion spring and the buffering effect of the buffer strut, the tension fluctuation during the wire feeding process is effectively reduced, ensuring that the wire maintains a constant tension during the feeding process, improving the printing quality and precision.

[0012] 2. Enhanced stability: The rotatable structure between the pneumatic connector base and the buffer strut allows the wire to rotate freely during feeding, preventing wire twisting or winding, enhancing the stability of the system.

[0013] 3. Easy maintenance: The connection structure between the fixed support, torsion spring and buffer strut is designed to be detachable, making it easy for users to maintain and replace, reducing maintenance costs.

[0014] 4. Strong adaptability: The length and diameter of the buffer strut can be customized according to different models of 3D printers, adapting to different application scenarios, improving the versatility and flexibility of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Fig. 1 is a structural schematic view;

[0017] Fig. 2 is a bottom view schematic view; DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] The embodiments of the present application will be further described in detail below with reference to the drawings.

[0020] 1. As Figs. 1-2As shown, the present application provides a technical solution: a 3D printing wire feeding buffer device, including a fixed support (1), a buffer support base (2), a torsional spring (3), a pneumatic joint (4), a pneumatic joint base (5), a buffer support (6), a torsional spring socket (7), a latch (8). The fixed support (1) is provided with a buffer support base and a torsional spring socket (7), the latch connects the three together through the center holes of the fixed support (1), the buffer support (6) and the torsional spring (3), ensuring that the buffer support (6) maintains rotational motion during movement, one end of the torsional spring (3) is fixed on the buffer support (6) through the torsional spring socket (7), and the other end is fixed on the fixed support (1). The elastic force of the torsional spring (3) can be adjusted according to different types of wire and printing speed to optimize the buffering effect. The two ends of the pneumatic joint (4) are used as the feeding port and the discharging port of the wire respectively. The pneumatic joint (4) is made of wear-resistant material to prolong the service life. The pneumatic joint (4) is connected with the pneumatic joint base (5), allowing the wire to rotate freely during feeding, preventing the wire from twisting or winding. The buffer support (6) is connected with the fixed support (1) and the torsional spring (3) through the latch (8). The latch (8) connects the three together through the center holes of the fixed support (1), the buffer support (6) and the torsional spring (3).

[0021] 2. When the 3D printer starts working, the wire enters from the feeding port of the pneumatic joint (4), passes through the internal channel of the pneumatic joint (4) to the discharging port, and finally enters the nozzle of the 3D printer. The rotatable structure between the pneumatic joint base (5) and the buffer support (6) allows the wire to rotate freely during feeding, preventing the wire from twisting or winding. When the nozzle of the 3D printer moves quickly, tension fluctuations will occur during wire feeding. At this time, the combined structure of the torsional spring (3) and the buffer support (6) can provide effective buffering effect, reduce tension fluctuations during wire feeding, and ensure that the wire maintains constant tension during feeding, thereby improving printing quality and stability. Users can adjust the height of the buffer support (6) to adapt to the position of the 3D printer nozzle of different heights. The connection structure between the fixed support (1), the torsional spring (3) and the buffer support (6) is designed to be detachable, which is convenient for users to maintain and replace, and ensures the long-term reliable operation of the device.

[0022] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0023] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative, and not restrictive, of the scope of the application.

Claims

1. A 3D printing feed buffer device, comprising a fixed support (1), a buffer strut base (2), a torsion spring (3), a pneumatic joint (4), a pneumatic joint base (5), a buffer strut (6), a torsion spring socket (7), a latch (8), characterized in that, The fixed support (1) is provided with a buffer strut base and a torsion spring socket (7), a latch passes through the central holes of the fixed support (1), the buffer strut (6) and the torsion spring (3) to connect the three together, one end of the torsion spring (3) is fixed on the buffer strut (6) through the torsion spring socket (7), and the other end is fixed on the fixed support (1).

2. A 3D printing feed buffering device as claimed in claim 1, characterized in that, The connecting structure between the fixed support (1), the torsion spring (3) and the buffer strut (6) is designed to be detachable.

3. A 3D printing feed buffering device as claimed in claim 1, characterized in that, The pneumatic connector base (5) and the buffer strut (6) are in a rotatable structure.