3D printing material wire feeding device

Abstract

The utility model belongs to the technical field of 3D printing equipment, and particularly relates to a 3D printing material wire feeding device. The 3D printing material wire feeding device comprises a base, a rotating part, a fixing part and a connecting part, a material disc can be fixedly connected to the fixing part through the connecting part, and the fixing part is connected to the base through the rotating part and can synchronously rotate with the material disc to achieve feeding. The material disc is connected to the base through the fixed part and the rotating part, the material disc and the fixed part can rotate synchronously, relative movement between the material disc and the fixed part is avoided in the rotating process, namely rolling friction does not exist, smooth rotation of the material disc relative to the base is achieved, blocking in the wire feeding process is effectively avoided, the feeding stability of the wire feeding device is improved, and the production efficiency is improved. And chippings cannot be generated, and the service life of the 3D printer is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing equipment, and specifically relates to a 3D printing material wire feeding device. Background Art

[0002] During the printing process, a 3D printer needs a wire feeding device to feed the material continuously. The feeding device transfers the material on the material tray to the 3D printer. At present, the wire feeding method of the material tray used by 3D printers on the market mostly adopts the method of hanging it on an axis, or placing it on a stainless steel tube with bearings at both ends, and relying on the pulling force when the 3D printer feeds the material to drive the material tray to rotate. However, in actual applications, the material tray is prone to rolling problems during the wire feeding process due to the rolling friction between its side and the stainless steel tube, which causes the wire feeding to be stuck, affecting the smoothness of the feeding. In addition, the debris generated by the friction on the side of the material tray may fall into the 3D printer, thereby damaging the printer. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a 3D printing material wire feeding device, which aims to solve the problem that the material disc of the commonly used wire feeding device is prone to jamming or generating debris during the wire feeding process.

[0004] The utility model provides a 3D printing material feeding device, comprising a base docked with a workbench, a rotating part connected to the base, a fixed part docked with a material tray and a connecting part, the material tray can be fixedly connected to the fixed part via the connecting part, and the fixed part is connected to the base via the rotating part and can rotate synchronously with the material tray relative to the base to transfer the material on the material tray to the 3D printer.

[0005] In other embodiments, the rotating portion includes a bearing, an axis of the bearing intersects with a mounting surface of the workbench, and the fixing portion is connected to a side of the bearing away from the mounting surface.

[0006] In other embodiments, a driving part connected to the rotating part is further included, and the driving part can drive the rotating part to rotate.

[0007] In other embodiments, the rotation speed of the driving unit is the same as the feed speed of the 3D printer.

[0008] In other embodiments, the driving part includes a motor, and an output shaft of the motor is connected to the rotating part.

[0009] In other embodiments, the connecting portion includes a material disc fixing pin, and the material disc fixing pin can pass through a fixing hole of the material disc and be connected to the fixing portion to fix the material disc to the fixing portion.

[0010] In other embodiments, the fixing portion includes a positioning shaft connected to the rotating portion and a rotating tray fixedly connected to the positioning shaft, and the positioning shaft can pass through the center hole of the material tray to fixedly connect one end of the material tray to the rotating tray.

[0011] Beneficial effect: The utility model provides a 3D printing material feeding device, including a base, a rotating part, a fixed part and a connecting part. The material disc can be fixedly connected to the fixed part via the connecting part, and the fixed part is connected to the base via the rotating part and can rotate synchronously with the material disc to realize feeding. The material disc is connected to the base via the fixed part and the rotating part, and the material disc can rotate synchronously with the fixed part. During the rotation process, no relative movement will be generated with the fixed part, that is, there is no rolling friction, so that the material disc can rotate smoothly relative to the base, effectively avoiding jamming during the wire feeding process, improving the feeding stability of the wire feeding device, and not generating debris, thereby increasing the service life of the 3D printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a 3D printing material feeding device in an embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the application and installation of a 3D printing material feeding device in an embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure in which a base with a rotating part is installed on a workbench in an embodiment of the utility model;

[0015] In the figure, 1 is a base, 2 is a rotating part, 3 is a fixed part, 31 is a rotating tray, 32 is a positioning shaft, 4 is a connecting part, 5 is a material, 6 is a material tray, 61 is a fixing hole, 62 is a center hole, 7 is a printer, 8 is a workbench, and 81 is a mounting surface. DETAILED DESCRIPTION

[0016] A 3D printing material feeding device, such as Figures 1 to 3 As shown, it includes a base 1 docked with a workbench 8, a rotating part 2 connected to the base 1, a fixed part 3 docked with a material disc 6 and a connecting part 4, the material disc 6 can be fixedly connected to the fixed part 3 via the connecting part 4, and the fixed part 3 is connected to the base 1 via the rotating part 2 and can rotate synchronously with the material disc 6 relative to the base 1 to transfer the material on the material disc 6 to the 3D printer 7. The material disc 6 rotates relative to the base 1 via the fixed part 3 and the rotating part 2. During the rotation process, the material disc 6 does not generate rolling friction with the adjacent fixed part, which can not only realize smooth rotation relative to the base 1, but also effectively improve the feeding stability of the wire feeding device, and also does not generate debris, thereby increasing the service life of the 3D printer.

[0017] In another embodiment, the rotating part 2 includes a bearing, the axis A of the bearing intersects with the mounting surface of the workbench 8, and the fixing part 3 is connected to the side of the bearing away from the mounting surface 81. When a larger material disc 6 is used, relative to the arrangement structure in which the axis A is perpendicular to the horizontal plane, this arrangement can reduce the placement area of ​​the material disc 6 on the workbench 8. When a heavier material disc 6 is used, relative to the arrangement structure in which the axis A is parallel to the horizontal plane, this arrangement can make the bearing relatively uniformly stressed, which helps to ensure the smoothness of the bearing's rotation and service life. This arrangement can better adapt to different types of material discs 6, further improving the service life, feeding stability and applicability of the wire feeding device.

[0018] In another embodiment, the wire feeding device further includes a driving unit (not shown in the figure) connected to the rotating part 2, and the driving unit can drive the rotating part 2 to rotate. Compared with the driving method that relies on the pulling force of the 3D printer 7 to realize the rotation of the material disk 6, this setting can actively drive the rotation of the material disk 6 by itself, and can rotate a heavier material disk 6 under the action of external pulling force, thereby ensuring the smoothness of the rotation feeding effect and better improving the adaptability of the wire feeding device. Furthermore, the rotation speed of the driving unit is the same as the feeding speed of the 3D printer 7. Preferably, the driving unit includes a motor, and the output shaft of the motor is connected to the rotating part 2. The autonomous rotation of the rotating part 2 is controlled by the motor. The speed and torque of the motor can be adjusted according to the needs, and the rotation of the rotating part 2 can be realized more flexibly and reliably to adapt to the feeding requirements, further improving the adaptability of the wire feeding device.

[0019] In another embodiment, the connecting portion 4 includes a material disc fixing pin, which can pass through the fixing hole 61 of the material disc 6 and be connected to the fixing portion 3 to fix the material disc 6 to the fixing portion 3. By using a pin connection structure to achieve a fixed connection between the material disc 6 and the fixing portion 3, the structure is simple and easy to implement, and the connection is reliable, thereby reducing the manufacturing cost of the wire feeding device. Preferably, a plurality of material disc fixing pins are provided to dock with a plurality of fixing holes 61 around the material disc 6. This arrangement can better fix the material disc 6 and ensure the rotation stability during the rotation process, so as to further improve the feeding stability.

[0020] In another embodiment, the fixing part 3 includes a positioning shaft 32 connected to the rotating part 2 and a rotating tray 31 fixedly connected to the positioning shaft 32, and the positioning shaft 32 can pass through the central hole 62 of the material tray 6 to fix one end of the material tray 6 to the rotating tray 31. This arrangement can better adapt to the structure of the material tray 6, and the central position of the material tray 6 is defined by the positioning shaft 32, and the rotating tray 31 is used to achieve a planar docking with the end surface of the material tray 6, which effectively ensures the fixing effect of the material tray 6 and further improves the stability of feeding.

[0021] The above implementation modes are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with the technology in this field can understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A 3D printing material feeding device, characterized in that: The 3D printer comprises a base (1) docked with a workbench (8), a rotating part (2) connected to the base (1), a fixed part (3) docked with a material tray (6), and a connecting part (4), wherein the material tray (6) can be fixedly connected to the fixed part (3) via the connecting part (4), and the fixed part (3) is connected to the base (1) via the rotating part (2) and can rotate synchronously with the material tray (6) relative to the base (1) to transfer the material on the material tray (6) to the 3D printer (7).

2. The 3D printing material feeding device according to claim 1, characterized in that: The rotating part (2) comprises a bearing, the axis of the bearing intersects with the mounting surface (81) of the workbench (8), and the fixing part (3) is connected to a side of the bearing away from the mounting surface (81).

3. The 3D printing material feeding device according to claim 1, characterized in that: It also comprises a driving part connected to the rotating part (2), and the driving part can drive the rotating part (2) to rotate.

4. The 3D printing material feeding device according to claim 3, characterized in that: The rotation speed of the driving unit is the same as the feeding speed of the 3D printer (7).

5. The 3D printing material feeding device according to claim 3, characterized in that: The driving part comprises a motor, and an output shaft of the motor is connected to the rotating part (2).

6. The 3D printing material feeding device according to claim 1, characterized in that: The connecting portion (4) comprises a material disc fixing pin, and the material disc fixing pin can pass through a fixing hole (61) of the material disc (6) and be connected to the fixing portion (3) so as to fix the material disc (6) to the fixing portion (3).

7. The 3D printing material feeding device according to claim 1, characterized in that: The fixed portion (3) comprises a positioning shaft (32) connected to the rotating portion (2) and a rotating tray (31) fixedly connected to the positioning shaft (32); the positioning shaft (32) can pass through a central hole (62) of the material tray (6) to fixedly connect one end of the material tray (6) to the rotating tray (31).

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