3D printing consumable feeding structure

Abstract

The utility model discloses a 3D printing consumable material feeding structure, including first transmission shaft and second transmission shaft who sets side by side, first transmission shaft with second transmission shaft is provided with driving feeding gear and driven feeding gear respectively, driving feeding gear with driven feeding gear engages the connection, first transmission shaft with second transmission shaft still is provided with two groups of O type circle respectively, and the material passageway for printing consumable material is formed between four groups of O type circle.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to a 3D printing consumable feeding structure. Background Technology

[0002] In the 3D printing process, the printing filament needs to be fed. The existing feeding structure uses a groove with a certain arc to be engraved on the gear. The filament to be transmitted is bitten by the groove little by little. On the one hand, it is easy to leave marks on the filament. On the other hand, if the bite is not tight, it will lead to slippage and feeding failure. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application provides a 3D printing consumable feeding structure, including a first drive shaft and a second drive shaft arranged in parallel. The first drive shaft and the second drive shaft are respectively provided with an active feeding gear and a driven feeding gear, which are meshed together. The first drive shaft and the second drive shaft are also respectively provided with two sets of O-rings, and a material channel is formed between the four sets of O-rings for the printing consumables to pass through.

[0004] Furthermore, bushings are respectively fitted on the first drive shaft and the second drive shaft, and mounting grooves are opened circumferentially along the bushings, with the O-ring disposed in the mounting grooves.

[0005] Furthermore, the O-ring is made of silicone.

[0006] Furthermore, the 3D printing filament feeding structure also includes a base and a pressing handle. The first drive shaft is connected to the base, and both ends of the second drive shaft are connected to the pressing handle, with one end passing through the pressing handle and simultaneously connected to the base.

[0007] Furthermore, the base has a boss, and a through material guide channel is formed in the boss, the material guide channel and the material channel are at the same horizontal position.

[0008] Furthermore, the pressing handle is positioned above the boss, and a spring is provided between the pressing handle and the boss.

[0009] Furthermore, a pin hole is provided on the pressing handle, and a fixing hole is provided on the base, into which a pin can be inserted.

[0010] The advantages of this application are: the provided 3D printing filament feeding structure forms a material channel through four sets of silicone O-rings in two layers, which makes it easier to adhere to the filament, prevents slippage, and avoids scratches, while also being quieter. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of one embodiment of the 3D printing consumable feeding structure of this application;

[0012] Figure 2 for Figure 1 Schematic diagram of a local structure in the middle;

[0013] Figure 3 This is a schematic diagram of another embodiment of the 3D printing consumable feeding structure of this application;

[0014] Figure 4 for Figure 3 Schematic diagram of the central base structure;

[0015] Figure 5 for Figure 3 Schematic diagram of the middle press handle.

[0016] The markings in the diagram are as follows: 10. First drive shaft; 11. Second drive shaft; 12. Driven feed gear; 13. Driven feed gear; 14. O-ring; 141. Material channel; 15. Bushing; 151. Mounting groove; 16. Base; 161. Fixing hole; 17. Press handle; 171. Upper spring hole; 172. Pin hole; 18. Boss; 181. Guide channel; 182. Lower spring hole; 19. Worm motor; 20. Transmission gear. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0019] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0020] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0023] See Figure 1 and Figure 2 This embodiment provides a 3D printing consumable feeding structure, including a first drive shaft 10 and a second drive shaft 11 arranged in parallel. The first drive shaft 10 and the second drive shaft 11 are respectively provided with a driving feed gear 12 and a driven feed gear 13, which are meshed together. Two sets of O-rings 14 are also provided on the first drive shaft and the second drive shaft, and a material channel 141 is formed between the four sets of O-rings 14 for the printing consumable to pass through.

[0024] Specifically, bushings 15 are respectively fitted on the first drive shaft 10 and the second drive shaft 11, and mounting grooves 151 are opened circumferentially along the bushings. O-rings 14 are set in the mounting grooves. Preferably, the O-rings are made of silicone. Since silicone is soft, it is easier to adhere to consumables, does not slip easily, and does not leave any marks. Example

[0025] See Figure 3-5This embodiment provides a 3D printing consumable feeding structure, including a base 16. The base 16 in the figure is a partial structure, which also includes a cover plate (not shown in the figure) for sealing the internal structure of the base. The first drive shaft 10 in embodiment 1 is connected to the inner wall of the base 16 through a bearing. A pressing handle 17 is provided at the top of the base 16. One end of the pressing handle 17 also has a certain size of installation space for installing the driven feeding gear 13. The two ends of the second drive shaft 11 are connected to the pressing handle through bearings, and one end of the shaft passes through the pressing handle and is connected to the base.

[0026] In the initial state, the pressing handle 17 is in the raised state, as shown in the figure. The base 16 has a boss 18, and a through guide channel 181 is opened in the boss 18. The guide channel 181 and the material channel 141 are at the same horizontal position. The lower end face of the pressing handle 17 is provided with an upper spring hole 171, and the upper end face of the boss 18 is provided with a lower spring hole 182. Springs (not shown in the figure) are installed in the upper spring hole 171 and the lower spring hole 182. The pressing handle is also provided with a pin hole 172, and the base 16 is provided with a fixing hole 161. Both the pin hole and the fixing hole are hexagonal holes. After the pressing handle is pressed down, the pin hole and the fixing hole are aligned, and then the pin is inserted to fix the handle. By setting the pressing handle, the O-ring on the second drive shaft can be fixed. When the pressing handle is in the initial state, the printing consumables can easily pass through the material channel 141. When the pressing handle is in the pressed state, the size of the material channel 141 is adjusted, and then the material channel is fixed to facilitate the subsequent delivery of printing consumables.

[0027] In addition, a worm motor 19 is installed inside the base 16. The output end of the worm motor 19 is equipped with a transmission gear 20. The transmission gear 20 meshes with the active feeding gear 12. Power is provided by the worm motor to realize a continuous feeding process.

[0028] 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 filament feeding structure, characterized in that: It includes a first drive shaft and a second drive shaft arranged in parallel. The first drive shaft and the second drive shaft are respectively provided with a driving feed gear and a driven feed gear. The driving feed gear and the driven feed gear are meshed and connected. The first drive shaft and the second drive shaft are also respectively provided with two sets of O-rings. A material channel is formed between the four sets of O-rings for printing consumables to pass through.

2. The 3D printing filament feeding structure according to claim 1, characterized in that: A bushing is fitted on the first drive shaft and the second drive shaft respectively, and an installation groove is opened circumferentially along the bushing, and the O-ring is disposed in the installation groove.

3. The 3D printing filament feeding structure according to claim 2, characterized in that: The O-ring is made of silicone.

4. The 3D printing filament feeding structure according to claim 1, characterized in that: The 3D printing filament feeding structure also includes a base and a pressing handle. The first drive shaft is connected to the base, and both ends of the second drive shaft are connected to the pressing handle, with one end passing through the pressing handle and simultaneously connected to the base.

5. The 3D printing filament feeding structure according to claim 4, characterized in that: The base has a boss, and a through material guide channel is opened in the boss. The material guide channel and the material channel are at the same horizontal position.

6. The 3D printing filament feeding structure according to claim 5, characterized in that: The pressing handle is located above the boss, and a spring is provided between the pressing handle and the boss.

7. The 3D printing filament feeding structure according to claim 6, characterized in that: The pressing handle has a pin hole, and the base has a fixing hole, into which a pin can be inserted.

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