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CN-116690974-B - Wetting protection device and 3D printing equipment

CN116690974BCN 116690974 BCN116690974 BCN 116690974BCN-116690974-B

Abstract

The application relates to a wetting protection device, which comprises an atomization generating mechanism (100) and a spraying mechanism (200), wherein a wetting position is arranged on 3D printing equipment, the atomization generating mechanism (100) is positioned at the wetting position, a first side of the spraying mechanism (200) is communicated with the atomization generating mechanism (100), a second side of the spraying mechanism (200) is provided with a wetting platform (210), a wetting hole (211) communicated with the spraying mechanism (200) is formed in the wetting platform (210), and when a printing head device (300) is positioned on the wetting platform (210), the wetting hole (211) faces to a nozzle assembly at the bottom of the printing head device (300). The application also relates to 3D printing equipment. The problem that current printer shower nozzle is blocked easily and is led to printing quality relatively poor can be solved to this scheme.

Inventors

  • YUAN MENGQING
  • MA RUI
  • WANG ZHIGANG
  • MA LIQIANG

Assignees

  • 共享智能装备(安徽)有限公司

Dates

Publication Date
20260512
Application Date
20230428

Claims (7)

  1. 1. The wetting protection device is characterized by comprising an atomization generation mechanism (100) and a spraying mechanism (200), wherein a wetting position is arranged on 3D printing equipment, the atomization generation mechanism (100) is positioned at the wetting position, a first side of the spraying mechanism (200) is communicated with the atomization generation mechanism (100), a second side of the spraying mechanism (200) is provided with a wetting platform (210), a wetting hole (211) communicated with the spraying mechanism (200) is formed in the wetting platform (210), and when a printing head device (300) is positioned on the wetting platform (210), the wetting hole (211) faces a nozzle assembly at the bottom of the printing head device (300); A guide piece (220) is arranged in the spraying mechanism (200), a wetting hole (211) is formed between the guide piece (220) and an opening on the second side of the spraying mechanism (200), and the wetting hole (211) extends along the length direction of the wetting platform (210); The guide piece (220) is rotatably arranged in the spraying mechanism (200), and the guide piece (220) rotates to adjust the size of the wetting hole (211); the guide piece (220) is provided with a guide inclined surface (221), and the wetting hole (211) is formed between the guide inclined surface (221) and the opening on the second side of the spraying mechanism (200).
  2. 2. The wetting protection device according to claim 1, characterized in that a plurality of wetting holes (211) are arranged on the wetting platform (210) at intervals, and the wetting holes (211) are in one-to-one correspondence with the spray head assemblies.
  3. 3. A wetting protection device according to claim 2, characterized in that the wetting aperture (211) matches the shape of the spray head assembly.
  4. 4. A wetting protection device according to claim 1, characterized in that the spraying means (200) has a gradually increasing cross section in the direction of its first side towards the second side.
  5. 5. A wetting protection device according to claim 1, characterized in that at least one of the two ends of the spraying mechanism (200) is provided with an air inlet (230).
  6. 6. The wetting protection device according to claim 1, further comprising a drive mechanism in communication with the spray mechanism (200), the drive mechanism driving the wetting platform (210) of the spray mechanism (200) towards or away from the spray head assembly.
  7. 7. A 3D printing apparatus comprising the dampening solution of any one of claims 1 to 6.

Description

Wetting protection device and 3D printing equipment Technical Field The invention relates to the technical field of 3D printing equipment, in particular to a wetting protection device and 3D printing equipment. Background 3D printing is a rapid prototyping technology, which is a technology for constructing objects by using powdery materials (powder for short) based on digital model files in a layer-by-layer printing mode. The equipment for realizing the 3D printing technology is called powder 3D printing equipment, and the printing process sequentially comprises the steps of data slicing treatment, lowering of a working box, heating, powder spreading by a powder spreading device, printing of slice images by a printing head, lowering of the working box again, heating, powder spreading by the powder spreading device again, printing of slice images by the printing head again, and sequentially printing and circulating work. In the above process, the binder is continuously sprayed as a liquid material on the powder surface by the spray head device, and the binder is easily dehydrated under the action of heating, and adhesion occurs between itself, so that the powder materials are adhered together. However, when the spray head device is subjected to the high-temperature radiation effect of the powder surface after being heated, the bottom plate of the spray head device is heated to be dried, the binder is automatically dehydrated to be sticky at the height Wen Shishi, and the adhered resin liquid also can block the spray holes, so that the printing effect is affected. Disclosure of Invention Based on this, it is necessary to provide a wetting protection device and a 3D printing apparatus for solving the problem that the existing printer nozzle is easily blocked, resulting in poor printing quality. In order to solve the problems, the invention adopts the following technical scheme: In a first aspect, an embodiment of the invention discloses a wetting protection device, which comprises an atomization generating mechanism and a spraying mechanism, wherein a wetting position is arranged on 3D printing equipment, the atomization generating mechanism is positioned at the wetting position, a first side of the spraying mechanism is communicated with the atomization generating mechanism, a second side of the spraying mechanism is provided with a wetting platform, a wetting hole communicated with the spraying mechanism is formed in the wetting platform, and when a printing head device is positioned on the wetting platform, the wetting hole faces to a spray head assembly at the bottom of the printing head device. In one embodiment, a plurality of the wetting holes are arranged on the wetting platform at intervals, and the wetting holes are in one-to-one correspondence with the spray head assemblies. In one embodiment, the wetting aperture matches the shape of the spray head assembly. In one embodiment, the spray mechanism has a gradually increasing cross-section in the direction of its first side towards the second side. In one embodiment, a guide member is disposed in the spraying mechanism, and the wetting aperture is formed between the guide member and the opening on the second side of the spraying mechanism, and extends along the length direction of the wetting platform. In one embodiment, the guide is rotatably disposed in the spray mechanism, the guide rotating to adjust the size of the wetting aperture. In one embodiment, the guide member is provided with a guide ramp forming the wetting aperture with the opening in the second side of the spray mechanism. In one embodiment, at least one of the two ends of the spraying mechanism is provided with an air inlet. In one embodiment, the spray head assembly further comprises a drive mechanism in communication with the spray mechanism, the drive mechanism driving the wetting platform of the spray mechanism to move toward or away from the spray head assembly. In a second aspect, embodiments of the present invention disclose a 3D printing device comprising the above described wetting protection device. The technical scheme adopted by the invention can achieve the following beneficial effects: In the wetting protection device disclosed by the embodiment of the invention, the real-time wetting of the spray head assembly is realized through the cooperation between the atomization generating mechanism and the spraying mechanism. The wetting position is only increased on the 3D printing equipment, and then the printing head device is wetted in real time through the wetting protection device, so that the using state of the spray head assembly can be well maintained, the problems that the binder is heated on the powder paving surface and is easily stuck to the spray head assembly, the frame is lost under the spraying rate of the spray head assembly, and the like are solved, and the problem of breakage of the powder paving surface can be reduced, so that the printing quality is ensure