A 3D printer reverse top-up rack

Abstract

The utility model discloses a kind of 3D printer reverse top-up rack, it is related to 3D printer relevant field, including three-axis platform, rack, tray and conveying pipe, the rack is slidably connected on three-axis platform horizontal shaft, the tray is clamped on the side surface of the rack, the conveying pipe is fixedly connected at the tray discharge port, by the inclined setting of rack and the extruder direction of tray discharge port orientation extruder, conveying pipe is directly connected to the feed inlet, so as to shorten the horizontal distance of material conveying, reduce the bending in vertical direction, and by the gradual change curvature design of conveying pipe, avoid sharp angle bending, reduce frictional resistance to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of 3D printers, specifically a reverse top-mounted feed rack for 3D printers. Background Technology

[0002] With the continuous development of 3D printing technology, the stability of the material conveying system directly affects the printing quality and efficiency. As a highly regarded device in the market, 3D printers are committed to achieving convenient switching between multiple materials for printing. The material rack, as a key component in the system that connects the material storage and the extruder, has a structural design that is crucial to the smoothness of material conveying.

[0003] Existing material rack conveying pipes often require bends at the rack outlet, equipment frame corners, and other locations. Some designs even feature sharp bends of over 90 degrees. This design forces the material to constantly change direction during transport, resulting in continuous friction and compression against the inner wall of the pipe. For materials with thinner diameters, lower hardness, or easily worn surfaces, this multi-bending path significantly exacerbates the contact friction between the material and the pipe. This not only increases the load on the feeding motor but also easily leads to material accumulation or jamming at the bends. Especially in printing scenarios where no one is present for extended periods, the probability of such problems increases further, severely impacting printing success rates. Utility Model Content

[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a reverse top-mounted feed rack for a 3D printer.

[0005] This invention is implemented as follows: a reverse top-mounted material rack for a 3D printer is constructed. The device includes a three-axis platform, on which a material rack is slidably connected. Material trays are snapped onto the sides of the material rack, and a conveying pipe is fixedly connected to the outlet of the material tray.

[0006] The material rack consists of an integrated material tray fixing module, a guide transition module, and a pipe connection module. The connection between the material rack and the three-axis platform adopts a detachable structure. A semi-circular pipe connection module is provided on the top side of the material rack. A circular material tray fixing module is provided vertically at the midpoint of the groove of the pipe connection module. A U-shaped guide transition module is provided on the side of the material tray fixing module.

[0007] Preferably, the tray fixing module adopts an adjustable snap-on structure, the guide transition module is set with an arc transition surface, and the pipe connection module is set with an integrated interface adapted to Teflon pipe.

[0008] Preferably, the conveying pipe has a gradually changing curvature, the material rack is inclined at 30°-45° to the horizontal direction, and the arc-shaped transition surface of the guide transition module is treated with a material with a low coefficient of friction.

[0009] This utility model has the following advantages: This utility model provides a reverse top-mounted feed rack for a 3D printer through improvements, which has the following improvements compared with similar equipment:

[0010] The present invention describes a reverse top-mounted material rack for a 3D printer. By tilting the material rack and directing the material tray outlet toward the extruder, the conveying pipe is directly connected to the extruder feed inlet, thereby shortening the horizontal distance of material conveying, reducing vertical bending, and avoiding sharp-angle bends through the gradual curvature design of the conveying pipe, thus reducing frictional resistance to a certain extent. Attached Figure Description

[0011] Figure 1 This is a frontal three-dimensional structural diagram of the three-axis platform of this utility model;

[0012] Figure 2 This is a right-view stereoscopic structural diagram of the three-axis platform of this utility model;

[0013] Figure 3 This is a three-dimensional structural diagram of the side of the material rack of this utility model;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the material rack of this utility model.

[0015] Among them: conveying pipe-1, three-axis platform-2, material rack-3, material tray-4, material tray fixing module-31, guide transition module-32, pipe connection module-33. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0017] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Example 1:

[0020] Please see Figures 1-4 The present invention relates to a reverse top-mounted material rack for a 3D printer, comprising a three-axis platform 2, a material rack 3 slidably connected to the horizontal axis of the three-axis platform 2, material trays 4 being snapped onto the sides of the material rack 3, and a conveying pipe 1 being fixedly connected to the outlet of the material trays 4. The conveying pipe 1 is set with a gradually changing curvature, and the material rack 3 is inclined at 30°-45° to the horizontal direction.

[0021] The material rack 3 consists of an integrated material tray fixing module 31, a guide transition module 32, and a pipe connection module 33. The connection between the material rack 3 and the three-axis platform 2 adopts a detachable structure. A semi-circular pipe connection module 33 is provided on the top side of the material rack 3. The pipe connection module 33 can easily form a straight or near-straight connection with the outlet of the guide transition module 32.

[0022] The pipe connection module 33 has a circular material tray fixing module 31 vertically positioned at the midpoint of the tank. The material tray fixing module 31 has a U-shaped guide transition module 32 on each side. The material tray fixing module 31 adopts an adjustable snap-fit ​​structure. The guide transition module 32 facilitates a smooth turn after the material is drawn out from the material tray 4, avoiding sharp-angle bends.

[0023] The guide transition module 32 is set with an arc-shaped transition surface, and the pipe connection module 33 is set with an integrated interface adapted to Teflon pipe. The arc-shaped transition surface of the guide transition module 32 is treated with a material with a low coefficient of friction.

[0024] The working principle of a reverse-mounted feeder in a 3D printer, as described above, is as follows:

[0025] During the operation of the 3D printer, the adjustable snap-fit ​​structure of the material tray fixing module 31 first stabilizes the material trays 4 of different specifications, ensuring uniform initial tension when the material is drawn out. Then, the arc-shaped transition surface of the guide transition module 32 allows for a smooth turn after the material is drawn out of the material tray 4, avoiding sharp-angle bends. At the same time, the low-friction coefficient material of the surface reduces the contact friction between the material and the guide transition module 32. Then, the integrated interface of the pipe connection module 33 and the Teflon tube adapter forms a straight or near-straight connection with the outlet of the guide transition module 32, so that the Teflon tube extends directly to the feed port of the extruder with the fewest bends after being drawn out of the material rack 3. The number of bends in the entire conveying path is reduced by more than 60% compared with the traditional material rack, and the radius of curvature of the remaining bends is greater than 5 times the diameter of the material, effectively avoiding the problem of increased frictional resistance caused by severe bending of the material during the conveying process.

[0026] This utility model provides an improved reverse top-mounted material rack for a 3D printer. By tilting the material rack 3 and directing the material tray 4's outlet toward the extruder, the conveying pipe 1 is directly connected to the extruder's feed inlet, thereby shortening the horizontal distance of material conveying, reducing vertical bending, and by using the gradual curvature design of the conveying pipe 1 to avoid sharp-angle bends, thus reducing frictional resistance to a certain extent.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reverse top-mounted material rack for a 3D printer, comprising a three-axis platform (2), wherein a material rack (3) is slidably connected on the horizontal axis of the three-axis platform (2), and a material tray (4) is snapped onto the side of the material rack (3), and a conveying pipe (1) is fixedly connected to the outlet of the material tray (4); Its features are: The material rack (3) is composed of an integrated material tray fixing module (31), a guide transition module (32), and a pipe connection module (33). The connection between the material rack (3) and the three-axis platform (2) adopts a detachable structure. A semi-circular pipe connection module (33) is provided on the top side of the material rack (3). A circular material tray fixing module (31) is provided vertically at the midpoint of the groove of the pipe connection module (33). A U-shaped guide transition module (32) is provided on the side of the material tray fixing module (31).

2. The reverse top-mounted feed rack for a 3D printer according to claim 1, characterized in that: The tray fixing module (31) adopts an adjustable snap-fit ​​structure, the guide transition module (32) is set with an arc transition surface, and the pipe connection module (33) is set with an integrated interface adapted to Teflon pipe.

3. The reverse top-mounted feed rack for a 3D printer according to claim 2, characterized in that: The conveying pipe (1) is set with a gradual curvature, the material rack (3) is set at an angle of 30°-45° to the horizontal direction, and the arc transition surface of the guide transition module (32) is treated with a material with a low coefficient of friction.

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