CN-224209130-U - Closed high-pressure wind field circulation system for 3D printing equipment

Abstract

The utility model relates to a closed high-pressure air field circulation system for 3D printing equipment, which comprises a sealed cabin, a compressed air pump, a high-pressure air storage tank, an air knife, a filtering component and a pressure sensor, wherein a low-pressure area and a high-pressure area are arranged in the sealed cabin, the filtering component is positioned in the low-pressure area, the air knife is positioned in the high-pressure area, the filtering component in the low-pressure area is connected with the compressed air pump, the compressed air pump is connected with the high-pressure air storage tank, the high-pressure air storage tank is connected with the air knife in the sealed cabin through a pipeline, the high-pressure air flows through the air knife shaping component to be sprayed to form an air field, circulation is formed in the cabin, an external air source is filled with inert gas into the sealed cabin to discharge the filtered gas through a gas discharge outlet, and the operation of the compressed air pump and the closing of a valve in the high-pressure area in the low-pressure area are controlled to maintain a low-pressure area, a high-pressure area and a stable flow field.

Inventors

• Tong Zengqiang
• ZHANG ZHAOFENG
• KANG WEISHAN

Assignees

• 西安数字能量智能科技有限公司

Dates

Publication Date

20260508

Application Date

20250206

Claims (5)

1. 1. The closed high-pressure air field circulating system for the 3D printing equipment comprises a sealed cabin (1), a compressed air pump (4), a high-pressure air storage tank (5) and an external air source (6), and is characterized in that a filtering component (3) is arranged in the sealed cabin (1), a pressure sensor (2) is arranged on the side wall of the sealed cabin (1), a low-pressure area and a high-pressure area are arranged in the sealed cabin (1), the filtering component (3) is located in the low-pressure area, low-pressure air in the low-pressure area is filtered through the filtering component (3) and then is connected with the compressed air pump (4) through a pipeline, the compressed air pump (4) is connected with the high-pressure air storage tank (5) through a pipeline, and the high-pressure air storage tank (5) is connected with an air knife (7) arranged in the high-pressure area in the sealed cabin (1) through the pipeline.
2. 2. The closed high-pressure air field circulation system for 3D printing equipment according to claim 1, wherein valves (8) for controlling air flow are arranged on connecting pipelines of the compressed air pump (4) and the high-pressure air storage tank (5) and connecting pipelines of the high-pressure air storage tank (5) and the air knife (7).
3. 3. The closed high-pressure air field circulation system for 3D printing equipment according to claim 1, wherein the external air source (6) is inert gas and is conveyed into the sealed cabin (1) through the high-pressure air storage tank (5) to maintain the pressure balance in the sealed cabin (1).
4. 4. The closed high-pressure wind farm circulation system for a 3D printing apparatus according to claim 1, wherein the pressure in the high-pressure area is more than 0.5MPa.
5. 5. The closed high-pressure wind farm circulating system for 3D printing equipment according to claim 1, wherein the filtering component (3) is used for filtering smoke dust in the working process of the 3D printing equipment.

Description

Closed high-pressure wind field circulation system for 3D printing equipment Technical Field The utility model belongs to the technical field of wind field circulating systems in 3D printing equipment, and particularly relates to a closed high-pressure wind field circulating system for 3D printing equipment. Background In 3D metal powder printing, the wind field above the printing breadth is stable and is an important condition for ensuring normal printing, and smoke dust, dust and the like are sucked away in the prior art by increasing the rotating speed of a fan of a circulating filtering system. At present, most printing systems are provided with fans to achieve the purposes of gas flow and smoke dust filtration. However, as the volume of the equipment increases, a large-format stable flow field is difficult to form, meanwhile, the power of a fan is increased, the inner diameter of a pipeline is increased, and the pipeline is difficult to arrange, so that the appearance of the equipment is large. Disclosure of utility model The utility model aims to solve the problems, and provides a closed high-pressure wind field circulation system for 3D printing equipment, which is characterized in that a sealed cabin is provided, a wind field is formed by jetting high-pressure air through an air knife, and circulation is formed in the sealed cabin to form a uniform flow field. In order to achieve the purpose, the utility model provides the technical scheme that the closed high-pressure air field circulating system for the 3D printing equipment comprises a sealed cabin, a compressed air pump, a high-pressure air storage tank and an external air source, wherein a filter assembly is arranged in the sealed cabin, a pressure sensor is arranged on the side wall of the sealed cabin, a low-pressure area and a high-pressure area are arranged in the sealed cabin, the filter assembly is positioned in the low-pressure area, low-pressure air in the low-pressure area is filtered by the filter assembly and then is connected with the compressed air pump through a pipeline, the compressed air pump is connected with the high-pressure air storage tank through a pipeline, and the high-pressure air storage tank is connected to an air knife of the cabin through the pipeline. Further, valves for controlling air flow are arranged on the connecting pipelines of the compressed air pump and the high-pressure air storage tank and the connecting pipelines of the high-pressure air storage tank and the air knife. And the external air source is inert gas and is conveyed into the sealed cabin through the high-pressure air storage tank, so that the pressure balance in the sealed cabin is maintained. Further, the pressure of the high-pressure area is more than 0.5Mpa. Preferably, the filter component is used for filtering smoke dust in the working process of the 3D printing equipment. Compared with the prior art, the invention has the beneficial effects that: The sealed cabin is characterized in that a compressed air pump can convert air flow filtered by a filtering component in a low-pressure area into high-pressure air flow and then convey the high-pressure air flow to a high-pressure air storage tank through a pipeline, the pressure in the high-pressure air storage tank is larger than 0.5MPa, the high-pressure air storage tank conveys the high-pressure air flow to the sealed cabin through the pipeline and sprays the air knife component to form a wind field, the wind field can circulate in the sealed cabin to form a uniform flow field, an external air source is arranged for maintaining pressure balance in the cabin, and the external air source can convey inert gases such as helium, argon and the like to the sealed cabin through the high-pressure air storage tank. The pressure sensor monitors the air pressure in the sealed cabin and puts it in a micro positive pressure state. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only for more clearly illustrating the embodiments of the present utility model or the technical solutions in the prior art, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a frame diagram of a schematic overall structure of the present utility model; In the figure, a cabin is sealed 1-, a pressure sensor 2-, a filtering component 3-, a compression air pump 4-, a high-pressure air storage tank 5-, an external air source 6-, an air knife 7-and a valve 8-are arranged. Detailed Description The utility model will be further described with reference to specific examples, which are intended to be illustrative only and not to be limiting of the utility model, in order to enable those skilled in the art to better understand the tec