Powder cleaning device for metal 3D printing piece

Abstract

The utility model relates to the technical field of 3D printing equipment, in particular to a powder cleaning device for a metal 3D printing piece with a substrate. In order to solve the problem that an existing powder cleaning device is complex in structure and prone to faults, the utility model aims to provide the powder cleaning device for the metal 3D printing piece with the substrate, which is simple to operate, not prone to faults and low in manufacturing cost. The device is mainly characterized by comprising a surface plate and a supporting column, a notch is formed in the surface plate, and the supporting column is perpendicularly arranged on the surface plate. During use, a printed piece is inversely inserted into the notch, and then powder can be shaken down by knocking and vibrating. The metal 3D printing piece powder cleaning device is mainly used for cleaning powder of metal 3D printing pieces and is easy and convenient to operate and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing equipment, in particular to a powder cleaning device for metal 3D printed parts. Background Art

[0002] 3D printing technology, also known as additive manufacturing technology, constructs three-dimensional objects by stacking materials layer by layer. It has the advantages of short manufacturing cycle and high design freedom. It is widely used in prototyping, complex parts production, personalized customization and other fields.

[0003] During the 3D printing process, the substrate serves as the supporting platform for the printed part and is crucial to its quality and stability. The substrate not only provides physical support but also helps manage thermal stress during the printing process, prevents deformation of the printed part, and ensures good adhesion between the printed part and the build platform.

[0004] At the same time, powder management becomes a key issue in the 3D printing process, especially when using powder materials (such as metal powder). For products printed using powder bed metal 3D printing technology, if there are physical features such as grooves, gullies or deep holes, powder will accumulate in the printout. In order to facilitate operation and reduce powder contamination during transportation, a powder pump is generally used. While the printout is still in the molding chamber of the 3D printer, the powder is cleaned through a suction tube inserted into the powder pump. However, the above-mentioned powder cleaning device has the following main defects:

[0005] 1) Core defect: The suction force of the powder extractor cannot completely remove the residual powder in the deeper pores. It can only remove the surface powder, leaving hidden dangers for subsequent processing steps.

[0006] 2) Minor drawback: high cost. This solution requires the purchase of a specialized industrial explosion-proof powder extractor, which incurs electricity costs. The powder inside the extractor must be cleaned periodically based on frequency of use. Furthermore, powder that cannot be cleaned cannot be recycled. This increases equipment, energy, and labor costs, as well as raw material costs.

[0007] Currently, there are some technologies that use vibration to remove powder, but they all have some defects. For example, patent CN 205816336U discloses a 3D printing parts powder cleaning device. This solution uses an electric rotating platform and motor vibration. Metal powder is a fine particle that can easily penetrate into the motor during the shaking process, causing damage, or accumulate at the shaft, causing secondary accumulation, thus affecting use. Utility Model Content

[0008] In view of the problem that the powder cleaning device in the above background technology is complex in structure and prone to malfunction, the purpose of the present utility model is to provide a powder cleaning device for metal 3D printed parts with a substrate that is simple to operate, not prone to malfunction and has low manufacturing cost.

[0009] The above technical objectives of the present invention are achieved through the following technical solutions:

[0010] A powder cleaning device for a metal 3D printed part with a substrate, characterized by comprising a flat plate and a support;

[0011] The support pillars are vertically fixed to the lower surface of the plane board to support the plane board to be placed horizontally;

[0012] The plane plate is provided with a notch which passes through the upper surface and the lower surface of the plane plate, and the 3D printed part can be suspended upside down in the notch.

[0013] As a preferred embodiment of the present invention, the sides of the notch are provided with stepped surfaces, and the 3D printed part substrate can be placed on the stepped surfaces.

[0014] As a preferred embodiment of the present invention, the stepped surface is a multi-stepped surface.

[0015] As a preferred embodiment of the present invention, the outer contour of the notch is the same as the outer contour of the substrate plane.

[0016] As a preferred embodiment of the present invention, the slot passes through one side of the flat plate, and blocking pieces are provided at both intersections of the side and the slot; one side of the two blocking pieces is fixed on the side, and the other side extends toward the center of the slot, and the blocking pieces are higher than the flat plate.

[0017] As a preferred embodiment of the present invention, the baffle protrudes toward the plane plate away from the side and then extends toward the center of the notch, and the height of the protruding portion of the baffle is 0-50% of the thickness of the plane plate side.

[0018] As a preferred embodiment of the present invention, the baffle is fixed at the slot, and the printed piece is inserted into the slot from above; or the baffle is openable and closable, and the printed piece is inserted into the slot from the front.

[0019] As a preferred embodiment of the present invention, one end of the pillar is a plug thinner than the column body, and the flat plate is provided with a pin hole, the width of the pin hole is smaller than the width of the column body and larger than the width of the plug.

[0020] As a preferred embodiment of the present invention, the pin hole and the plug are provided with internal and external threads respectively, and the internal and external threads are matched with each other.

[0021] As a preferred embodiment of the present invention, the number of the pillars and the number of the pin holes are both 4-6.

[0022] When in use, the flat plate base is placed flat with the support portion facing upward, the support plug is inserted or screwed into the pin hole, and the entire device is placed upside down. At this time, the printed part can be inserted into the slot for cleaning.

[0023] The beneficial effects of the utility model are as follows:

[0024] This utility model uses a flat plate and a support structure to form a simple 3D printed part powder cleaning device. When in use, simply place the printed part upside down on the device and tap it to remove the powder and achieve a cleaning effect. The structure is simple, easy to use, low cost, and the device is durable and not easy to damage.

[0025] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 This is a front view of the utility model after installation;

[0028] Figure 2 This is a schematic diagram of the utility model showing a printed part being placed upside down on a multi-step notch;

[0029] Figure 3 This is a top view of the baffle arrangement of the utility model;

[0030] Figure 4 This is a schematic diagram of setting a certain angle for the baffle of the utility model;

[0031] Figure 5 This is a schematic diagram of the baffle of the utility model;

[0032] Figure 6 It is a schematic diagram of the pillar of the utility model.

[0033] Reference numerals

[0034] 100 plane plate 200 pillars 110 pin holes

[0035] 120 notch 130 baffle 210 plug DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "lower surface", "bottom", "lateral", "upper", "lower", "left" and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] In addition, the terms "first," "second," and similar terms do not denote any order, quantity, or importance, but are used solely to distinguish one component from another.

[0039] It should be understood that the terms used in this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. It should be further understood that when the terms "comprise" and "include" are used in this utility model, they are used to indicate the presence of stated features, integers, steps, elements, and / or components, and do not exclude the presence or addition of one or more other features, integers, steps, elements, and / or combinations thereof.

[0040] Unless otherwise defined, all terms (including technical and scientific terms) used in this utility model have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. It should be further understood that the terms used in this utility model should be understood to have the same meanings as those in the context of this specification and the relevant field, and should not be understood in an idealized or overly formal sense, unless explicitly defined in this utility model.

[0041] According to the concept of the technical solution of the present utility model, the following embodiments are provided:

[0042] Embodiment, this embodiment provides a metal 3D printing part powder cleaning device, such as Figure 1 As shown, it includes a plane plate 100 and a support 200;

[0043] The support column 200 is vertically fixed to the lower surface of the flat panel 100 to support the flat panel 100 to be placed horizontally;

[0044] The flat plate 100 is provided with a slot 120 which passes through the upper and lower surfaces of the flat plate 100 , so that a substrate can be placed on the slot 120 and a 3D printed part can be suspended upside down in the slot 120 .

[0045] When in use, the entire device is placed on the ground or a table, with the support 200 at the bottom and the flat plate 100 at the top. The printed part to be cleaned together with the substrate is inserted upside down into the slot 120, and the substrate is knocked. At this time, the substrate and the printed part vibrate under the action of the knocking, and the powder on the printed part falls off. The knocking is continued until the powder is cleaned.

[0046] In a preferred embodiment, the side of the notch 120 is provided with a stepped surface, and the 3D printed substrate can be placed on the stepped surface 121. The provision of the stepped surface can further stabilize the substrate during cleaning to prevent it from moving laterally.

[0047] Furthermore, the step surface 121 is configured as a multi-step step surface 121 to be applicable to substrates of various sizes. Figure 2 As shown, a printed part with a substrate is placed in the stepped surface 121 .

[0048] In a preferred embodiment, the outer contour of the notch 120 is the same as the outer contour of the substrate plane. This design allows the device to adapt to substrates of various shapes, further expanding the applicability of the device.

[0049] In a preferred embodiment, the notch 120 passes through one side of the flat plate 100, and baffles 130 are provided at both intersections of the side and the notch 120; one side of the two baffles 130 is fixed to the side, and the other side extends toward the center of the notch 120, and the baffles 130 are higher than the flat plate 100. When struck, the substrate will produce different degrees of displacement in the horizontal and vertical directions due to vibration. The baffles 130 are added to prevent the substrate from falling due to excessive displacement. The baffles 130 are as follows Figure 3 and Figure 4 Install as shown.

[0050] Furthermore, the baffle 130 protrudes away from the side of the flat plate 100 and then extends toward the center of the slot 120. The height of the protruding portion of the baffle 130 is 0-50% of the thickness of the side of the flat plate 100, ensuring better vibration during knocking and cleaning. In order to prevent the substrate from falling when knocking, and to avoid the baffle 130 from being too close to the printed part and causing it to not vibrate well, a certain distance is left; the baffle has a certain height to prevent the substrate from bouncing off the baffle 130 due to excessive vibration amplitude. The specific shape of the baffle 130 is as follows: Figure 5shown.

[0051] Furthermore, the baffle 130 is fixed to the slot 120, and the printed workpiece is inserted into the slot 120 from above; or the baffle 130 is openable and closable, and the printed workpiece is inserted into the slot 120 from the front. This configuration can enrich the use of the device. When the printed workpiece is heavy or long, an openable and closable baffle can be selected, and the printed workpiece can be inserted directly from the front of the device without having to lift it over the flat plate 100.

[0052] In a preferred embodiment, one end of the support 200 is a plug 210 that is thinner than the column body. The flat plate 100 is provided with a pin hole 110. The width of the pin hole 110 is smaller than the width of the column body and larger than the width of the plug 210. The provision of the pin hole 110 allows the support 200 to be removed from the device for storage and the device to save floor space.

[0053] Furthermore, the pin hole 110 and the plug 210 are provided with internal and external threads, which are matched with each other. The use of threads can make the support 200 more firmly mounted on the flat plate 100, and prevent the support 200 from falling due to excessive elastic force when knocked. Figure 6 shown.

[0054] In a preferred embodiment, the number of the pillars 200 and the pin holes 110 is 4-6, and more preferably, the number of the pillars 200 and the pin holes 110 is 5. A reasonable number of pillars can ensure the stability of the device while not consuming excessive costs.

[0055] In a preferred embodiment, the support column 200 is retractable, and the length of the support column can be adjusted to a suitable position according to the height of the printed workpiece.

[0056] In a preferred embodiment, a rubber hammer for striking is also included, and striking with a rubber hammer is more labor-saving.

[0057] In a preferred embodiment, the flat plate 100 and the pillar 200 are made of metal material; further, the metal is one of steel, copper, aluminum, titanium, nickel alloy, alloy steel, etc. The metal material is conducive to accelerating the vibration frequency. When struck, the entire device and the printed part will vibrate due to the elastic micro-deformation, which is conducive to the shedding of powder.

[0058] This utility model uses a flat plate and a support structure to form a simple 3D printed part powder cleaning device. To use it, simply place the printed part with the base plate upside down in the device's slot to suspend it in the air, then tap the bottom of the base plate to remove the powder and achieve a cleaning effect. The device has a simple structure, is easy to use, is low-cost, and is durable and not easily damaged.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A powder cleaning device for metal 3D printed parts, characterized by: It includes a plane plate (100) and a support (200); The support column (200) is vertically fixed to the lower surface of the plane plate (100) to support the plane plate (100) to be placed horizontally; The plane plate (100) is provided with a notch (120), the notch (120) passing through the upper surface and the lower surface of the plane plate (100), and the 3D printed part can be suspended upside down in the notch (120).

2. A powder cleaning device for metal 3D printed parts according to claim 1, characterized in that: The sides of the notch (120) are both provided with stepped surfaces (121).

3. A powder cleaning device for metal 3D printed parts according to claim 2, characterized in that: The stepped surface (121) is a multi-step stepped surface (121).

4. The powder cleaning device for metal 3D printed parts according to claim 1, characterized in that: The shape of the outer contour of the notch (120) is the same as the outer contour of the substrate plane.

5. The powder cleaning device for metal 3D printed parts according to claim 2, characterized in that: The notch (120) passes through one side of the plane plate (100), and blocking pieces (130) are provided at both intersections of the side and the notch (120); one side of the two blocking pieces (130) is fixed to the side, and the other side extends toward the center of the notch (120), and the blocking pieces (130) are higher than the plane plate (100).

6. A powder cleaning device for metal 3D printed parts according to claim 5, characterized in that: The baffle (130) protrudes in a direction away from the side of the plane plate (100) and then extends toward the center of the slot (120). The height of the protruding portion of the baffle (130) is 0-50% of the thickness of the side of the plane plate (100).

7. The powder cleaning device for metal 3D printed parts according to claim 5, characterized in that: The baffle (130) is fixed at the slot (120), and the printed piece is inserted into the slot (120) from above; or the baffle (130) is openable and closable, and the printed piece is inserted into the slot (120) from the front.

8. The powder cleaning device for metal 3D printed parts according to claim 1, characterized in that: One end of the pillar (200) is a plug (210) thinner than the column body, and the plane plate (100) is provided with a pin hole (110), the width of the pin hole (110) being smaller than the width of the column body and larger than the width of the plug (210).

9. The powder cleaning device for metal 3D printed parts according to claim 8, characterized in that: The pin hole (110) and the plug (210) are provided with internal and external threads, respectively, and the internal and external threads are adapted to each other.

10. The powder cleaning device for metal 3D printed parts according to claim 8, characterized in that: The number of the pillars (200) and the number of the pin holes (110) are both 4-6.

Images