Printing head feeding device of 3D printer

Abstract

The printing head feeding device of the 3D printer relates to the technical field of 3D printers and comprises an annular connecting frame, fixing blocks are fixedly installed on the inner wall of the annular connecting frame in a circumferential arrangement mode, all the fixing blocks are fixedly connected with a feeding frame at the same time, and feeding ports are fixedly installed at the upper end of the outer wall of the feeding frame in a bilateral symmetry mode. A spiral stirring blade is rotationally arranged in the feeding frame, a rotating output pipe is rotationally arranged at the output end of the feeding frame, the rotating output pipe can rotate conveniently through rotation between the rotating disc and the rotating base, and friction force borne by the rotating disc when the rotating disc rotates in the rotating base can be reduced through steel balls; and the rotary output pipe can rotate along with movement of the printing head input pipeline of the 3D printer conveniently, damage to the joint of the printing head input pipeline and the output end of the feeding device due to long-term movement of the printing head input pipeline is reduced, and therefore the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, and in particular to a printhead feeding device for a 3D printer. Background Technology

[0002] 3D printing, also known as additive manufacturing, is a technology that manufactures solid parts by adding materials layer by layer based on three-dimensional CAD data. The history of 3D printing technology is one of continuous progress and expansion. From early rapid prototyping technology to its widespread applications today, 3D printing technology is used in design and manufacturing fields such as jewelry design, footwear design and manufacturing, industrial design, architectural design, engineering design and construction, and automotive design and manufacturing, as well as in medical fields such as aerospace and dentistry.

[0003] Most 3D printers currently have a feeding device to feed material into the print head. Since the print head often moves frequently during operation, the material feeding channel also moves. The material feeding channel of the print head is usually fixed to the output end of the feeding device. This can cause the connection between the material feeding channel and the output end of the feeding device to break during long-term movement of the material feeding channel.

[0004] Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a 3D printer printhead feeding device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a printing head feeding device for a 3D printer, including an annular connecting frame, with fixing blocks fixedly installed circumferentially on the inner wall of the annular connecting frame, and a feeding frame fixedly connected to all the fixing blocks. Feed inlets are symmetrically fixedly installed on the upper left and right sides of the outer wall of the feeding frame, and a spiral stirring blade is rotatably arranged inside the feeding frame. A rotating output pipe is rotatably arranged at the output end of the feeding frame.

[0007] As a further technical solution of this utility model, a fixed frame is fixedly installed on the upper end of the outer wall of the feeding frame, a motor is fixedly connected in the middle of the fixed frame, a rotating shaft is fixedly installed at the output end of the motor, and the spiral stirring blades are fixedly connected to the side wall of the rotating shaft.

[0008] As a further technical solution of this utility model, an anti-clogging spiral blade is fixedly installed at the lower end of the side wall of the rotating shaft and inside the rotating output tube.

[0009] As a further technical solution of this utility model, connecting rods are fixedly installed in a circumferential arrangement on the lower side of the outer wall of the annular connecting frame, and an annular rotating frame is fixedly installed at the lower end of the outer wall of all the connecting rods. A rotating disk is rotatably connected to the inner wall of the annular rotating frame, and the rotating output pipe is fixedly connected to the middle of the rotating disk. A rotating seat is fixedly installed at the upper end of the outer wall of the rotating disk, and the inner wall of the rotating seat is rotatably connected to the lower end of the outer wall of the feeding frame.

[0010] As a further technical solution of this utility model, steel balls are rotatably connected in a circumferential arrangement on the lower side of the outer wall of the rotating disk, and the steel balls are slidably connected to the lower side of the inner wall of the annular rotating frame.

[0011] As a further technical solution of this utility model, a connecting flange is fixedly installed at the lower end of the outer wall of the rotating output pipe.

[0012] This invention provides a printhead feeding device for a 3D printer, which has the following advantages compared with the prior art:

[0013] 1. In use, the material in the feeding frame can be discharged from the rotating output tube into the input pipe of the 3D printer's print head. The device facilitates the rotation of the output tube by rotating between the rotating disk and the rotating base. The steel balls reduce the friction force on the rotating disk when it rotates in the rotating base, making it easier for the output tube to rotate with the movement of the 3D printer's print head input pipe. This reduces the damage to the connection between the print head input pipe and the output end of the feeding device caused by the long-term movement of the print head input pipe, thereby improving the practicality of the device.

[0014] 2. When in use, the device stirs the material in the feeding frame by rotating the spiral stirring blades. When the rotating shaft rotates, it can simultaneously drive the anti-clogging spiral blades to rotate and stir, thereby preventing the material from clogging inside the rotating output pipe and increasing the stability of the device during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0017] Figure 3 This is an enlarged view of the structure at point A of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the spiral stirring blade and the anti-clogging spiral blade of this utility model.

[0019] Figure 5 This is a schematic diagram of the rotating disk of this utility model.

[0020] In the diagram: 100, annular connecting frame; 110, fixing block; 200, feeding frame; 210, feed inlet; 300, spiral mixing blade; 310, rotating shaft; 320, fixing frame; 330, motor; 340, anti-clogging spiral blade; 400, rotating output pipe; 410, connecting rod; 420, annular rotating frame; 430, rotating disk; 440, rotating seat; 450, connecting flange; 500, steel ball. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5This utility model provides a technical solution for a 3D printer printhead feeding device: it includes an annular connecting frame 100, with fixing blocks 110 fixedly installed circumferentially on the inner wall of the annular connecting frame 100, and all fixing blocks 110 are simultaneously fixedly connected to a feeding frame 200. Feed inlets 210 are symmetrically fixedly installed on the upper left and right sides of the outer wall of the feeding frame 200. Spiral stirring blades 300 are rotatably arranged inside the feeding frame 200. A rotating output pipe 400 is rotatably arranged at the output end of the feeding frame 200. A connecting flange 450 is fixedly installed on the lower end of the outer wall of the rotating output pipe 400. The device connects the rotating output pipe 400 to the printhead input pipe of the 3D printer through the connecting flange 450. The device is connected to an external material supply pipeline through two inlets 210. Material enters the feeding frame 200 through the inlets 210 and is stirred by the rotation of the spiral stirring blades 300. The material in the feeding frame 200 can be discharged from the rotating output pipe 400 into the input pipeline of the 3D printer's print head. A fixing frame 320 is fixedly installed on the upper part of the outer wall of the feeding frame 200. A motor 330 is fixedly connected to the middle of the fixing frame 320. A rotating shaft 310 is fixedly installed at the output end of the motor 330. The spiral stirring blades 300 are fixedly connected to the side wall of the rotating shaft 310. The device drives the rotating shaft 310 to rotate by starting the motor 330, thereby driving the spiral stirring blades 300 to rotate. Connecting rods 410 are fixedly installed circumferentially on the lower outer wall of the annular connecting frame 100. Annular rotating frames 420 are simultaneously fixedly installed at the lower outer ends of all connecting rods 410. A rotating disk 430 is rotatably connected to the inner wall of the annular rotating frame 420. The rotating output pipe 400 is fixedly connected to the middle of the rotating disk 430. A rotating seat 440 is fixedly installed at the upper outer wall of the rotating disk 430. The inner wall of the rotating seat 440 is rotatably connected to the lower outer wall of the feeding frame 200. The device facilitates the rotation of the rotating output pipe 400 through the rotation between the rotating disk 430 and the rotating seat 440. Steel balls 500 are rotatably connected circumferentially on the lower outer wall of the rotating disk 430. The steel balls 500 are slidably connected to the lower inner wall of the annular rotating frame 420. The steel balls 500 reduce the friction experienced by the rotating disk 430 when rotating in the rotating seat 440.

[0023] like Figure 2 and Figure 4 As shown, an anti-clogging spiral blade 340 is fixedly installed at the lower end of the side wall of the rotating shaft 310 and inside the rotating output pipe 400. When the rotating shaft 310 rotates, it can simultaneously drive the anti-clogging spiral blade 340 to rotate and stir, thereby preventing the material from clogging inside the rotating output pipe 400.

[0024] The working principle of this utility model is as follows: In use, the device connects the rotating output pipe 400 to the input pipe of the 3D printer's print head via the connecting flange 450. The material enters the feeding frame 200 from the feed inlet 210. The device drives the rotating shaft 310 to rotate via the starting motor 330, thereby driving the spiral stirring blades 300 to rotate. The rotation of the spiral stirring blades 300 stirs the material in the feeding frame 200. The material in the feeding frame 200 can be discharged from the rotating output pipe 400 into the input pipe of the 3D printer's print head. The rotation between the rotating disk 430 and the rotating seat 440 facilitates the rotation of the rotating output pipe 400. The steel balls 500 reduce the friction force on the rotating disk 430 when it rotates in the rotating seat 440. At the same time, when the rotating shaft 310 rotates, it can simultaneously drive the anti-clogging spiral blades 340 to rotate and stir, thereby preventing the material from clogging inside the rotating output pipe 400.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A printhead feeding device for a 3D printer, comprising an annular connecting frame (100), characterized in that: The inner wall of the annular connecting frame (100) is fixedly installed with fixing blocks (110) arranged in a circular pattern. All the fixing blocks (110) are simultaneously fixedly connected to the feeding frame (200). The upper part of the outer wall of the feeding frame (200) is symmetrically fixed with inlets (210). The feeding frame (200) is rotatably equipped with spiral stirring blades (300) inside. The output end of the feeding frame (200) is rotatably equipped with a rotating output pipe (400).

2. The printhead feeding device for a 3D printer according to claim 1, characterized in that, A fixing frame (320) is fixedly installed on the upper end of the outer wall of the feeding frame (200). A motor (330) is fixedly connected in the middle of the fixing frame (320). A rotating shaft (310) is fixedly installed at the output end of the motor (330). The spiral stirring blade (300) is fixedly connected to the side wall of the rotating shaft (310).

3. The printhead feeding device for a 3D printer according to claim 2, characterized in that, An anti-clogging spiral blade (340) is fixedly installed at the lower end of the side wall of the rotating shaft (310) and inside the rotating output tube (400).

4. The printhead feeding device for a 3D printer according to claim 1, characterized in that, Connecting rods (410) are fixedly installed in a circumferential arrangement on the lower side of the outer wall of the annular connecting frame (100). Annular rotating frames (420) are fixedly installed at the lower ends of the outer walls of all the connecting rods (410). A rotating disk (430) is rotatably connected to the inner wall of the annular rotating frame (420). The rotating output pipe (400) is fixedly connected to the middle of the rotating disk (430). A rotating seat (440) is fixedly installed at the upper end of the outer wall of the rotating disk (430). The inner wall of the rotating seat (440) is rotatably connected to the lower end of the outer wall of the feeding frame (200).

5. The printhead feeding device for a 3D printer according to claim 4, characterized in that, The lower outer wall of the rotating disk (430) is circumferentially connected with steel balls (500), and the steel balls (500) are slidably connected to the lower inner wall of the annular rotating frame (420).

6. The printhead feeding device for a 3D printer according to claim 1, characterized in that, A connecting flange (450) is fixedly installed at the lower end of the outer wall of the rotating output pipe (400).

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