A mixing device for 3D printing

Abstract

This utility model discloses a mixing device for 3D printing, relating to the field of 3D printing technology. It includes a mixing frame, a connecting frame fixedly installed on the upper end of the outer wall of the mixing frame, a sliding port on the rear side of the outer wall of the connecting frame, and sliding groove frames fixedly installed on the outer wall of the connecting frame on both sides of the sliding port. Sliding blocks are slidably connected inside both sliding groove frames. The device filters the material falling from the feed inlet using a screen, removing large particles of impurities to prevent them from being directly discharged from the output pipe and to prevent large particles of impurities from flowing into the printer head and causing blockage, thus improving the practicality of the device. Furthermore, by starting a motor, the two sliding blocks and the annular connecting frame can be driven to slide backward, causing the screen to slide backward as well, thereby removing the screen from the connecting frame for easy cleaning and improving the convenience of using the device.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a mixing device for 3D printing. 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. 3D printing material mixing technology is an important development direction in the field of additive manufacturing. By combining different materials as needed, composite material structures with special properties can be created.

[0003] When mixing materials, it is usually necessary to stir them to ensure that the various materials are thoroughly mixed. However, materials may clump together during long-term storage. For example, metal powder materials may solidify into large particles of impurities during long-term storage. These impurities are often not easily broken up during stirring. If they are directly output to the print head of a 3D printer, they may cause the print head to become clogged, affecting the normal use of the printer.

[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 mixing device for 3D printing, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for 3D printing, comprising a mixing frame, a connecting frame fixedly installed on the upper end of the outer wall of the mixing frame, a sliding opening on the rear side of the outer wall of the connecting frame, and sliding groove frames fixedly installed on the outer wall of the connecting frame on the left and right sides of the sliding opening. Sliding blocks are slidably connected inside each of the two sliding groove frames, and an annular connecting frame is slidably connected between the two sliding blocks. A screen is fixedly connected inside the annular connecting frame. An output frame is fixedly installed on the lower side of the outer wall of the mixing frame. Spiral mixing blades are rotatably arranged inside the output frame and the mixing frame. An output pipe is fixedly installed on the side wall of the output frame, and a valve is fixedly installed on the output pipe.

[0007] As a further technical solution of this utility model, a feed inlet is fixedly connected to the upper end of the outer wall of the connecting frame, and mounting plates are symmetrically fixedly installed on the left and right sides of the side wall of the stirring frame, with mounting holes provided on the mounting plates.

[0008] As a further technical solution of this utility model, a rotating shaft is rotatably connected to the middle of the inner wall of the output frame, the spiral stirring blade is fixedly connected to the side wall of the rotating shaft, a motor frame is fixedly connected to the lower end of the outer wall of the output frame, a motor is fixedly installed on the inner wall of the motor frame, and the output end of the motor frame rotatably passes through the inner wall of the output frame and is fixedly connected to the rotating shaft.

[0009] As a further technical solution of this utility model, rotating frames are symmetrically fixedly installed on the opposite sides of the outer walls of the two connecting frames. Each pair of rotating frames is rotatably connected to a screw. The side walls of the two screws are threadedly connected to threaded sleeves, and the threaded sleeves are fixedly connected to the sliding block.

[0010] As a further technical solution of this utility model, the rear ends of the outer walls of the left and right screws are rotatably passed through the rotating frame and fixedly connected to a sprocket. Motor plates are fixedly installed on the upper sides of the outer walls of the left and right sliding frames. A second motor is fixedly connected to the upper side of the outer wall of the motor plate. A second sprocket is fixedly installed at the output end of the second motor. A chain is connected between the second sprocket and the two first sprockets.

[0011] As a further technical solution of this utility model, a reinforcing rod is fixedly connected between the lower side of the outer wall of the two chute frames and the side wall of the stirring frame.

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

[0013] 1. When using this utility model, personnel put various materials into the mixing frame and output frame through the feed port, and start the motor to drive the rotating shaft to rotate, thereby driving the spiral mixing blades to mix the materials inside the output frame and mixing frame, and discharge the materials inside the device to the printer print head through the output pipe for use.

[0014] 2. In use, this utility model uses a screen to filter the material falling from the feed inlet, removing large particles of impurities and preventing them from being discharged directly from the output pipe. This also prevents large particles of impurities from flowing into the printer head and causing blockage, thus improving the practicality of the device. Furthermore, by starting the motor, the two sliding blocks on the left and right sides and the annular connecting frame can be driven to slide backward, causing the screen to slide backward as well. This allows the screen to be moved out of the connecting frame for easy cleaning, improving the convenience of using the device. Attached Figure Description

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

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a top view of the screen of this utility model when it is removed from the connecting frame;

[0018] Figure 4 This is an internal sectional view of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the annular connecting frame and the screen of this utility model.

[0020] In the diagram: 100, stirring frame; 110, mounting plate; 120, mounting hole; 200, connecting frame; 210, sliding port; 220, chute frame; 240, sliding block; 300, annular connecting frame; 310, screen; 400, output frame; 410, spiral stirring blade; 420, rotating shaft; 430, motor frame; 440, motor one; 500, output pipe; 510, valve; 600, feed inlet; 700, rotating frame; 710, screw; 720, threaded sleeve; 730, sprocket one; 740, motor plate; 750, motor two; 760, sprocket two; 770, chain; 800, reinforcing rod. 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 1-5 As shown, this utility model has the following two specific embodiments.

[0023] Example 1

[0024] A mixing device for 3D printing includes a mixing frame 100, an output frame 400 fixedly mounted on the lower outer wall of the mixing frame 100, spiral mixing blades 410 rotatably mounted inside the output frame 400 and the mixing frame 100, an output pipe 500 fixedly mounted on the side wall of the output frame 400, a valve 510 fixedly mounted on the output pipe 500, a feed inlet 600 fixedly connected to the upper end of the outer wall of a connecting frame 200, and mounting plates 110 symmetrically fixedly mounted on the left and right sides of the mixing frame 100, with mounting holes 120 formed on the mounting plates 110. The mounting plates 110 and mounting holes 120 are used for fixed installation of the device. Personnel can feed various materials into the mixing frame 100 and the output frame 400 through the feed inlet 600 and discharge the materials inside the device through the output pipe 500. A rotating shaft 420 is rotatably connected to the middle of the inner wall of the output frame 400. The spiral stirring blade 410 is fixedly connected to the side wall of the rotating shaft 420. A motor frame 430 is fixedly connected to the lower end of the outer wall of the output frame 400. A motor 440 is fixedly installed on the inner wall of the motor frame 430. The output end of the motor frame 430 rotatably passes through the inner wall of the output frame 400 and is fixedly connected to the rotating shaft 420. By starting the motor 440, the rotating shaft 420 is driven to rotate, thereby driving the spiral stirring blade 410 to stir and mix the materials inside the output frame 400 and the stirring frame 100.

[0025] like Figure 1-4 As shown, personnel input various materials into the mixing frame 100 and the output frame 400 through the feed inlet 600, and drive the rotating shaft 420 to rotate by starting the motor 440, thereby driving the spiral mixing blades 410 to mix the materials inside the output frame 400 and the mixing frame 100. Finally, the materials inside the device are discharged into the printer head for use through the output pipe 500.

[0026] Example 2

[0027] The difference from Embodiment 1 is that this embodiment discloses a screen 310 and its driving structure. A connecting frame 200 is fixedly installed on the upper end of the outer wall of the stirring frame 100. A sliding port 210 is opened on the rear side of the outer wall of the connecting frame 200. Sliding groove frames 220 are fixedly installed on the outer wall of the connecting frame 200 and on the left and right sides of the sliding port 210. Sliding blocks 240 are slidably connected inside the two sliding groove frames 220. An annular connecting frame 300 is slidably connected between the two sliding blocks 240. The screen 310 is fixedly connected inside the annular connecting frame 300. The annular connecting frame 300 is driven to slide back and forth by the back and forth sliding of the two sliding blocks 240, thereby driving the screen 310 to slide back and forth. By sliding the screen 310 into the connecting frame 200, the material falling from the feed port 600 is filtered, and large particulate impurities in the material are screened out to prevent them from being directly discharged from the output pipe 500. Two connecting frames 200 are symmetrically fixedly installed with rotating frames 700 on opposite sides of their outer walls. Each pair of rotating frames 700 is rotatably connected with a screw 710. The side walls of the two screws 710 are threaded with threaded sleeves 720. The threaded sleeves 720 are fixedly connected to the sliding blocks 240. The rotation of the two screws 710 drives the two threaded sleeves 720 to move back and forth, thereby driving the two sliding blocks 240 to slide back and forth. Both left and right screws 710 have rotatable rear ends that pass through the rotating frame 700 and are fixedly connected to sprockets 730. Motor plates 740 are fixedly installed on the upper sides of the outer walls of both left and right sliding frames 220. A second motor 750 is fixedly connected to the upper side of the outer wall of the motor plate 740. A second sprocket 760 is fixedly installed at the output end of the second motor 750. A chain 770 drives the second sprocket 760 to rotate, which in turn drives the two first sprockets 730 to rotate under the action of the chain 770, thus causing the two left and right screws 710 to rotate. Reinforcing rods 800 are fixedly connected between the lower sides of the outer walls of both sliding frames 220 and the side walls of the stirring frame 100. The reinforcing rods 800 improve the connection strength between the two sliding frames 220 and the stirring frame 100.

[0028] like Figure 1-5 As shown, the device drives the second motor 750 to rotate the second sprocket 760, which in turn drives the two first sprockets 730 to rotate under the action of the chain 770. This causes the two left and right screws 710 to rotate. The rotation of the left and right screws 710 drives the two threaded sleeves 720 to move back and forth, which in turn drives the two left and right sliding blocks 240 to slide back and forth. The back and forth sliding of the left and right sliding blocks 240 drives the annular connecting frame 300 to slide back and forth, which in turn drives the screen 310 to slide back and forth. By sliding the screen 310 into the connecting frame 200, the material falling from the feed port 600 is filtered, and large particles of impurities in the material are screened out to prevent them from being directly discharged from the output pipe 500.

[0029] The working principle of this utility model is as follows: When in use, the personnel first put various materials into the mixing frame 100 and the output frame 400 through the feed port 600, and then start the motor 440 to drive the rotating shaft 420 to rotate, thereby driving the spiral mixing blades 410 to stir and mix the materials inside the output frame 400 and the mixing frame 100. Simultaneously, the device drives the second sprocket 760 to rotate via the second motor 750, which in turn drives the two first sprockets 730 to rotate under the action of the chain 770. This causes the two left and right screws 710 to rotate, which in turn drives the two threaded sleeves 720 to move back and forth. This, in turn, causes the two left and right sliding blocks 240 to slide back and forth. This movement of the left and right sliding blocks 240 drives the annular connecting frame 300 to slide back and forth, which in turn drives the screen 310 to slide back and forth. By sliding the screen 310 into the connecting frame 200, the material falling from the feed inlet 600 is filtered, and large particles of impurities in the material are screened out, preventing them from being directly discharged from the output pipe 500.

[0030] 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 mixing device for 3D printing, comprising a mixing frame (100), characterized in that: A connecting frame (200) is fixedly installed on the upper end of the outer wall of the stirring frame (100). A sliding port (210) is opened on the rear side of the outer wall of the connecting frame (200). A sliding groove frame (220) is fixedly installed on the outer wall of the connecting frame (200) and on the left and right sides of the sliding port (210). A sliding block (240) is slidably connected inside each of the two sliding groove frames (220). An annular connecting frame (300) is slidably connected between the two sliding blocks (240). A screen (310) is fixedly connected inside the annular connecting frame (300). An output frame (400) is fixedly installed on the lower side of the outer wall of the stirring frame (100). Spiral stirring blades (410) are rotatably arranged inside the output frame (400) and the stirring frame (100). An output pipe (500) is fixedly installed on the side wall of the output frame (400). A valve (510) is fixedly installed on the output pipe (500).

2. The mixing device for 3D printing according to claim 1, characterized in that, The upper end of the outer wall of the connecting frame (200) is fixedly connected to the feed port (600), and the side wall of the stirring frame (100) is symmetrically fixedly installed with mounting plates (110), and the mounting plates (110) are provided with mounting holes (120).

3. The mixing device for 3D printing according to claim 1, characterized in that, A rotating shaft (420) is rotatably connected to the middle of the inner wall of the output frame (400). The spiral stirring blade (410) is fixedly connected to the side wall of the rotating shaft (420). A motor frame (430) is fixedly connected to the lower end of the outer wall of the output frame (400). A motor (440) is fixedly installed on the inner wall of the motor frame (430). The output end of the motor frame (430) rotatably passes through the inner wall of the output frame (400) and is fixedly connected to the rotating shaft (420).

4. The mixing device for 3D printing according to claim 1, characterized in that, Two connecting frames (200) are symmetrically fixedly installed with rotating brackets (700) on opposite sides of their outer walls. Each pair of rotating brackets (700) is rotatably connected with a screw (710). The side walls of the two screws (710) are threaded with threaded sleeves (720), and the threaded sleeves (720) are fixedly connected to the sliding block (240).

5. A mixing device for 3D printing according to claim 4, characterized in that, The rear ends of the outer walls of the two screws (710) on the left and right sides rotate through the rotating frame (700) and are fixedly connected to the first sprocket (730). The upper sides of the outer walls of the two sliding frames (220) on the left and right sides are simultaneously fixedly installed with motor plates (740). The upper side of the outer wall of the motor plate (740) is fixedly connected with the second motor (750). The output end of the second motor (750) is fixedly installed with the second sprocket (760). The second sprocket (760) is connected to the two first sprockets (730) by a chain (770).

6. A mixing device for 3D printing according to claim 1, characterized in that, A reinforcing rod (800) is fixedly connected between the lower outer wall of each of the two chute frames (220) and the side wall of the stirring frame (100).

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