A material rack structure of a 3D printer

Abstract

The utility model discloses a material frame structure of 3D printer, including support device, the side end top fixed mounting of support device has transmission device, two between fixed mounting of support device has positioning device, transmission device includes first filling hole, collection cavity, first backflow hole and rotary piece, rotary piece rotation installs in the inside center of collection cavity, first filling hole is set up in the side end top of collection cavity, first backflow hole is set up in the side end bottom of collection cavity, support device includes support base, transmission cavity, bearing, second backflow hole and second filling hole, transmission cavity fixed mounting is in the inside top end of support base, the bearing fixed mounting is in the inner ring center of transmission cavity, second filling hole is set up in the side end top of transmission cavity. The utility model discloses through the setting of transmission device, support device and positioning device, has realized the purpose that can to bearing circulation lubrication.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, specifically to a material rack structure for a 3D printer. Background Technology

[0002] 3D printing, academically known as additive manufacturing, is a technology that constructs three-dimensional objects by stacking materials layer by layer. It is fundamentally different from traditional "subtractive manufacturing" (such as carving and cutting) and "equal-material manufacturing" (such as casting and forging).

[0003] For example, a material feeder for a 3D printer, as disclosed in Chinese Patent Publication No. CN208133609U, includes a left support frame, a right support frame, a left top cover, a right top cover, a left nut cover, a right nut cover, and a threaded rod. The left end of the threaded rod passes through the left top cover and the left support frame in sequence, and the right end of the threaded rod passes through the right top cover and the right support frame. The left nut cover is threaded onto the left end of the threaded rod and prevents the left support frame from sliding along the left end of the threaded rod. The right nut cover is threaded onto the right end of the threaded rod and prevents the right support frame from sliding along the right end of the threaded rod. The left top cover extends towards the right top cover and has a left-inclined structure that is inclined towards the center line of the threaded rod. The right top cover extends towards the left top cover and has a right-inclined structure that is inclined towards the center line of the threaded rod. The left-inclined structure is aligned with the right-inclined structure along the axial direction of the threaded rod.

[0004] Existing 3D printer carriages rely on bearings for rotation during use, and these bearings may become dry over time. Furthermore, existing 3D printer carriages lack components for circulating lubrication of the bearings, leading to jamming or poor feeding during operation. Therefore, an improved device is needed to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a material rack structure for a 3D printer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a material rack structure for a 3D printer, including a support device, a transmission device fixedly installed on the top side of the support device, a positioning device fixedly installed between two support devices, the transmission device including a first filling hole, a collection cavity, a first reflux hole and a rotating plate, the rotating plate being rotatably installed at the center inside the collection cavity, the first filling hole being opened at the top side of the collection cavity, and the first reflux hole being opened at the bottom side of the collection cavity.

[0007] Preferably, the support device includes a support base, a transmission cavity, a bearing, a second reflux hole, and a second filling hole. The transmission cavity is fixedly installed at the top inside of the support base, the bearing is fixedly installed at the center of the inner ring of the transmission cavity, the second filling hole is opened at the top of the side end of the transmission cavity, and the second reflux hole is opened at the bottom of the side end of the transmission cavity.

[0008] Preferably, the positioning device includes a support cavity, a return spring, a square rod, a reel, and a hexagonal plate. The return spring is fixedly installed inside the support cavity. The square rod slides through the support cavity and is connected to the return spring. The hexagonal plate is fixedly installed at the end of the square rod opposite to the return spring.

[0009] Preferably, the end of the supporting cavity away from the hexagonal plate is connected to the rotating plate, and the side end of the collecting cavity near the first filling hole is connected to the side end of the transmission cavity near the second filling hole.

[0010] Preferably, the inner ring of the transmission cavity is provided with an oil drain groove.

[0011] Preferably, the rotating plate has symmetrically formed oil storage grooves inside.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In use, this device connects to the support cavity via a rotating plate. When the reel rotates, it drives the rotating plate to rotate inside the collection cavity, allowing the rotating plate to transport grease upwards. Simultaneously, the grease flows into the transmission cavity, where it is applied to the bearing surface for lubrication, improving bearing smoothness. Furthermore, a return spring moves the hexagonal plate into the reel, enabling quick disassembly and installation of the reel, thus completing the bearing circulation lubrication process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional schematic diagram of the transmission device of this utility model;

[0016] Figure 3 This is a partial cross-sectional schematic diagram of the support device of this utility model;

[0017] Figure 4 This is a partial cross-sectional schematic diagram of the positioning device of this utility model.

[0018] In the figure: 1-Transmission device, 2-Support device, 3-Positioning device, 4-First filling hole, 5-Collection cavity, 6-First reflux hole, 7-Rotating plate, 8-Support base, 9-Transmission cavity, 10-Bearing, 11-Second reflux hole, 12-Second filling hole, 13-Support cavity, 14-Reset spring, 15-Square rod, 16-Spindle, 17-Hexagonal plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 The present invention provides an embodiment of a material rack structure for a 3D printer, including a support device 2, a transmission device 1 fixedly installed on the top side of the support device 2, and a positioning device 3 fixedly installed between the two support devices 2. The transmission device 1 includes a first filling hole 4, a collection cavity 5, a first reflux hole 6, and a rotating plate 7. The rotating plate 7 is rotatably installed in the center of the inside of the collection cavity 5. The first filling hole 4 is opened on the top side of the collection cavity 5, and the first reflux hole 6 is opened on the bottom side of the collection cavity 5.

[0021] The support device 2 includes a support base 8, a transmission cavity 9, a bearing 10, a second reflux hole 11, and a second filling hole 12. The transmission cavity 9 is fixedly installed inside the top of the support base 8. The bearing 10 is fixedly installed in the center of the inner ring of the transmission cavity 9. The second filling hole 12 is opened at the top of the side end of the transmission cavity 9, and the second reflux hole 11 is opened at the bottom of the side end of the transmission cavity 9. A sealing plate is installed on the side end of the transmission cavity 9 away from the second filling hole 12 to prevent the lubricating oil inside the transmission cavity 9 from being discharged outward. At the same time, a circular hole adapted to the support cavity 13 is opened in the center of the sealing plate, so that the support cavity 13 can be installed inside the bearing 10.

[0022] The positioning device 3 includes a support cavity 13, a return spring 14, a square rod 15, a reel 16, and a hexagonal plate 17. The return spring 14 is fixedly installed inside the support cavity 13. The square rod 15 slides through the support cavity 13 and is connected to the return spring 14. The hexagonal plate 17 is fixedly installed at the end of the square rod 15 away from the return spring 14. The side end of the transmission cavity 9 near the second filling hole 12 is in contact with the side end of the collection cavity 5 near the first filling hole 4, so as to prevent grease from flowing outward.

[0023] The end of the support cavity 13 away from the hexagonal plate 17 is connected to the rotating plate 7. The side end of the collection cavity 5 near the first filling hole 4 is connected to the side end of the transmission cavity 9 near the second filling hole 12. The outer ring surface of the rotating plate 7 is in contact with the inner wall surface of the collection cavity 5, so that leakage can be avoided when the oil storage tank in the rotating plate 7 moves the grease.

[0024] The inner ring of the transmission cavity 9 is provided with an oil drain groove, which facilitates the grease to flow back along the surface of the bearing 10 to the interior of the transmission cavity 9.

[0025] The rotating plate 7 has symmetrical oil storage grooves inside, which can drive the oil to circulate when the rotating plate 7 rotates.

[0026] Working principle: During use, a filling hole is provided on the top side of the collecting chamber 5, and the filling hole is usually sealed with a sealing plug to prevent external dust from entering the interior of the collecting chamber 5. Subsequently, the sealing plug can be removed from the filling hole to add lubricating oil into the collecting chamber 5. At this time, the lubricating oil can enter the interior of the first filling hole 4 through the oil reservoir inside the rotating plate 7, and the first filling hole 4 is interconnected with the second filling hole 12, so that the lubricating oil can flow along the second filling hole 12 into the interior of the transmission chamber 9. At the same time, the lubricating oil can pass through the interior of the transmission chamber 9. The oil drain hole flows to the surface of the bearing 10, thereby lubricating the bearing 10 until the lubricating oil flows along the surface of the bearing 10 and accumulates at the bottom of the transmission cavity 9. In use, the hexagonal plate 17 can be moved towards the end closer to the support cavity 13, and the reel 16 can be moved downwards until it is horizontally aligned with the hexagonal plate 17, until the hexagonal holes at the center of both sides of the reel 16 are aligned with the hexagonal plate 17. Then, the hexagonal plate 17 is released, and the elasticity of the return spring 14 will cause the hexagonal plate 17 to move and reset, allowing it to be inserted into the hexagonal hole at the side end of the reel 16. In the process, the spool 16 can be fixed in place. Then, the material inside the spool 16 is connected to the feeder in the 3D printer, so that the material can drive the spool 16 to rotate. The support cavity 13 is installed inside the bearing 10, and the end of the support cavity 13 away from the spool 16 is connected to the rotating plate 7, so that when the spool 16 rotates, it can drive the rotating plate 7 to rotate inside the collection cavity 5. When the rotating plate 7 rotates, it can drive the oil reservoir to rotate through the bottom of the collection cavity 5. Through the transmission cavity 9, the oil is interconnected with the second return hole 11 and the first return hole 6, so that the lubricating oil can be discharged. The lubricating oil can be simultaneously stored at the bottom of the collecting cavity 5 and the transmission cavity 9. When the rotating plate 7 drives the oil reservoir to pass through the bottom of the collecting cavity 5, it can drive the lubricating oil to move upward until the oil reservoir is aligned with the first filling hole 4. The lubricating oil can then flow through the first filling hole 4 and the second filling hole 12 into the transmission cavity 9. Thus, the lubricating oil can flow from the inside of the transmission cavity 9 to the surface of the bearing 10, which can lubricate the bearing 10. Subsequently, the lubricating oil can flow back into the transmission cavity 9 through the oil drain groove inside the transmission cavity 9, completing the lubrication of the bearing 10.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material rack structure for a 3D printer, comprising a support device (2), wherein a transmission device (1) is fixedly installed on the top of the side end of the support device (2), and a positioning device (3) is fixedly installed between two of the support devices (2), characterized in that: The transmission device (1) includes a first filling hole (4), a collection cavity (5), a first reflux hole (6) and a rotating plate (7). The rotating plate (7) is rotatably installed in the center of the inside of the collection cavity (5). The first filling hole (4) is opened at the top of the side end of the collection cavity (5), and the first reflux hole (6) is opened at the bottom of the side end of the collection cavity (5).

2. The material rack structure for a 3D printer according to claim 1, characterized in that: The support device (2) includes a support base (8), a transmission cavity (9), a bearing (10), a second reflux hole (11), and a second filling hole (12). The transmission cavity (9) is fixedly installed at the top of the inside of the support base (8). The bearing (10) is fixedly installed at the center of the inner ring of the transmission cavity (9). The second filling hole (12) is opened at the top of the side end of the transmission cavity (9), and the second reflux hole (11) is opened at the bottom of the side end of the transmission cavity (9).

3. The material rack structure for a 3D printer according to claim 2, characterized in that: The positioning device (3) includes a support cavity (13), a return spring (14), a square rod (15), a spool (16), and a hexagonal plate (17). The return spring (14) is fixedly installed inside the support cavity (13). The square rod (15) slides through the support cavity (13) and is connected to the return spring (14). The hexagonal plate (17) is fixedly installed at one end of the square rod (15) away from the return spring (14).

4. The material rack structure for a 3D printer according to claim 3, characterized in that: The end of the support cavity (13) away from the hexagonal plate (17) is connected to the rotating plate (7), and the side end of the collection cavity (5) near the first filling hole (4) is connected to the side end of the transmission cavity (9) near the second filling hole (12).

5. The material rack structure for a 3D printer according to claim 4, characterized in that: The inner ring of the transmission cavity (9) is provided with an oil drain groove.

6. The material rack structure for a 3D printer according to claim 5, characterized in that: The rotating plate (7) has symmetrically arranged oil storage tanks inside.

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